diff options
207 files changed, 21563 insertions, 56543 deletions
diff --git a/Build/source/libs/lua52/ChangeLog b/Build/source/libs/lua52/ChangeLog deleted file mode 100644 index b8ad27b00f8..00000000000 --- a/Build/source/libs/lua52/ChangeLog +++ /dev/null @@ -1,75 +0,0 @@ -2018-09-09 Karl Berry <karl@tug.org> - - * luaerror.test: LC_ALL=LANGUAGE=C. - -2016-02-18 Akira Kakuto <kakuto@fuk.kindai.ac.jp> - - * Makefile.am, configure.ac: New convention. - -2015-07-06 Peter Breitenlohner <peb@mppmu.mpg.de> - - * Makefile.am: Better dependencies for 'make check'. - -2015-03-11 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.4. - * version.ac: Adjust. - -2015-02-16 Peter Breitenlohner <peb@mppmu.mpg.de> - - * Makefile.am: Use the fragment ../../am/dist_hook.am. - -2014-10-22 Peter Breitenlohner <peb@mppmu.mpg.de> - - * Makefile.am, configure.ac: Build lua52 as (possibly shared) - Libtool library, install headers, library, and .pc file. - * luaerror.test: Adapted. - -2014-06-02 Peter Breitenlohner <peb@mppmu.mpg.de> - - * Makefile.am (AM_CPPFLAGS): Drop LUAI_HASHLIMIT. - -2014-03-21 Peter Breitenlohner <peb@mppmu.mpg.de> - - * configure.ac: Add -DHAVE_UNISTD_H to LUA52_DEFINES because - config.h is not used. - -2014-03-15 Peter Breitenlohner <peb@mppmu.mpg.de> - - * Makefile.am (AM_CPPFLAGS): Define LUAI_HASHLIMIT=6 for LuaTeX. - -2014-03-03 Peter Breitenlohner <peb@mppmu.mpg.de> - - * luaerror.test (new): Shell script to test error handling. - * error.exp (new): Expected test output. - * Makefile.am: Add the new files. - * configure.ac: The test program requires sqrt(). - -2014-02-11 Peter Breitenlohner <peb@mppmu.mpg.de> - - * lua52.test (new): Shell script for a basic test. - * luatest.c (new): Source code for test program. - * Makefile.am: Add the new files. - -2013-12-07 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.3. - * version.ac: Adjust. - -2013-07-06 Peter Breitenlohner <peb@mppmu.mpg.de> - - * Makefile.am: Use ../../am/rebuild.am. - -2013-07-05 Peter Breitenlohner <peb@mppmu.mpg.de> - - * include/Makefile.am: Moved Makefile fragments to ../../am/. - -2012-06-25 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.2. - * version.ac: Adjust. - -2012-06-18 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.1/ from http://www.lua.org/ftp/lua-5.2.1.tar.gz. - diff --git a/Build/source/libs/lua52/Makefile.am b/Build/source/libs/lua52/Makefile.am deleted file mode 100644 index 314b345714b..00000000000 --- a/Build/source/libs/lua52/Makefile.am +++ /dev/null @@ -1,106 +0,0 @@ -## $Id$ -## Proxy Makefile.am to build Lua52 for TeX Live. -## -## Copyright 2017 Karl Berry <tex-live@tug.org> -## Copyright 2013-2015 Peter Breitenlohner <tex-live@tug.org> -## -## This file is free software; 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$$dry rmdir rebuild.lock; \ - else \ - while test -d rebuild.lock && test -z "$$dry"; do sleep 1; done; \ - fi; \ - $$dry test -f rebuild.stamp; exit $$?; \ - fi - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/Build/source/libs/lua52/TLpatches/ChangeLog b/Build/source/libs/lua52/TLpatches/ChangeLog deleted file mode 100644 index a8f1b4d385f..00000000000 --- a/Build/source/libs/lua52/TLpatches/ChangeLog +++ /dev/null @@ -1,36 +0,0 @@ -2015-03-11 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.4/ from http://www.lua.org/ftp/lua-5.2.4.tar.gz. - - * patch-01-utf-8, patch-02-FreeBSD, patch-03-export: Adapted. - -2014-10-22 Peter Breitenlohner <peb@mppmu.mpg.de> - - * patch-03-export (new): Export symbols for LuaTeX (from Luigi). - -2014-02-13 Peter Breitenlohner <peb@mppmu.mpg.de> - - * patch-02-FreeBSD (new): Required for FreeBSD. - From Nikola Lecic <nikola.lecic@anthesphoria.net>. - -2014-02-13 Peter Breitenlohner <peb@mppmu.mpg.de> - - * patch-01-utf-8 (new): Allow utf-8 chars in identifiers. - From Luigi Scarso <luigi.scarso@gmail.com>. - -2012-12-07 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.3/ from http://www.lua.org/ftp/lua-5.2.3.tar.gz. - -2012-06-25 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.2/ from http://www.lua.org/ftp/lua-5.2.2.tar.gz. - - * patch-01-const (removed): Now included upstream. - -2012-06-18 Peter Breitenlohner <peb@mppmu.mpg.de> - - Import lua-5.2.1/ from http://www.lua.org/ftp/lua-5.2.1.tar.gz. - - * patch-01-const (new): Add const to avoid warning. - diff --git a/Build/source/libs/lua52/TLpatches/patch-01-utf-8 b/Build/source/libs/lua52/TLpatches/patch-01-utf-8 deleted file mode 100644 index 9ad97494106..00000000000 --- a/Build/source/libs/lua52/TLpatches/patch-01-utf-8 +++ /dev/null @@ -1,26 +0,0 @@ -diff -ur lua-5.2.4.orig/src/lctype.h lua-5.2.4/src/lctype.h ---- lua-5.2.4.orig/src/lctype.h 2013-04-12 20:48:47.000000000 +0200 -+++ lua-5.2.4/src/lctype.h 2014-02-13 13:17:33.000000000 +0100 -@@ -7,6 +7,8 @@ - #ifndef lctype_h - #define lctype_h - -+#include <ctype.h> -+ - #include "lua.h" - - -@@ -53,9 +55,11 @@ - - /* - ** 'lalpha' (Lua alphabetic) and 'lalnum' (Lua alphanumeric) both include '_' -+** -+** all utf-8 chars (greater than 0x7f) are always alphabetic - */ --#define lislalpha(c) testprop(c, MASK(ALPHABIT)) --#define lislalnum(c) testprop(c, (MASK(ALPHABIT) | MASK(DIGITBIT))) -+#define lislalpha(c) (isalpha(c) || (c) == '_' || (c) > 0x7f) -+#define lislalnum(c) (isalnum(c) || (c) == '_' || (c) > 0x7f) - #define lisdigit(c) testprop(c, MASK(DIGITBIT)) - #define lisspace(c) testprop(c, MASK(SPACEBIT)) - #define lisprint(c) testprop(c, MASK(PRINTBIT)) diff --git a/Build/source/libs/lua52/TLpatches/patch-02-FreeBSD b/Build/source/libs/lua52/TLpatches/patch-02-FreeBSD deleted file mode 100644 index c9465de9446..00000000000 --- a/Build/source/libs/lua52/TLpatches/patch-02-FreeBSD +++ /dev/null @@ -1,13 +0,0 @@ -diff -ur lua-5.2.4.orig/src/liolib.c lua-5.2.4/src/liolib.c ---- lua-5.2.4.orig/src/liolib.c 2013-04-12 20:48:47.000000000 +0200 -+++ lua-5.2.4/src/liolib.c 2014-03-19 15:03:49.727286832 +0100 -@@ -19,6 +19,9 @@ - #include <stdio.h> - #include <stdlib.h> - #include <string.h> -+#if defined(HAVE_UNISTD_H) -+#include <unistd.h> -+#endif - - #define liolib_c - #define LUA_LIB diff --git a/Build/source/libs/lua52/TLpatches/patch-03-export b/Build/source/libs/lua52/TLpatches/patch-03-export deleted file mode 100644 index 2c2edd01b6a..00000000000 --- a/Build/source/libs/lua52/TLpatches/patch-03-export +++ /dev/null @@ -1,33 +0,0 @@ -diff -ur lua-5.2.4.orig/src/lopcodes.h lua-5.2.4/src/lopcodes.h ---- lua-5.2.4.orig/src/lopcodes.h 2014-10-20 20:32:09.000000000 +0200 -+++ lua-5.2.4/src/lopcodes.h 2015-03-11 08:31:42.000000000 +0100 -@@ -269,7 +269,7 @@ - OpArgK /* argument is a constant or register/constant */ - }; - --LUAI_DDEC const lu_byte luaP_opmodes[NUM_OPCODES]; -+LUA_API const lu_byte luaP_opmodes[NUM_OPCODES]; - - #define getOpMode(m) (cast(enum OpMode, luaP_opmodes[m] & 3)) - #define getBMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 4) & 3)) -@@ -278,7 +278,7 @@ - #define testTMode(m) (luaP_opmodes[m] & (1 << 7)) - - --LUAI_DDEC const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */ -+LUA_API const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */ - - - /* number of list items to accumulate before a SETLIST instruction */ -diff -ur lua-5.2.4.orig/src/lundump.h lua-5.2.4/src/lundump.h ---- lua-5.2.4.orig/src/lundump.h 2013-04-12 20:48:47.000000000 +0200 -+++ lua-5.2.4/src/lundump.h 2014-10-22 11:14:59.000000000 +0200 -@@ -17,7 +17,7 @@ - LUAI_FUNC void luaU_header (lu_byte* h); - - /* dump one chunk; from ldump.c */ --LUAI_FUNC int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip); -+LUA_API int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip); - - /* data to catch conversion errors */ - #define LUAC_TAIL "\x19\x93\r\n\x1a\n" diff --git a/Build/source/libs/lua52/ac/withenable.ac b/Build/source/libs/lua52/ac/withenable.ac deleted file mode 100644 index 2f44378ef48..00000000000 --- a/Build/source/libs/lua52/ac/withenable.ac +++ /dev/null @@ -1,7 +0,0 @@ -## libs/lua52/ac/withenable.ac: configure.ac fragment for the TeX Live subdirectory libs/lua52/ -dnl -dnl Copyright (C) 2013 Peter Breitenlohner <tex-live@tug.org> -dnl You may freely use, modify and/or distribute this file. -dnl -## configure options and TL libraries required for lua52 -KPSE_WITH_LIB([lua52], , [tree]) diff --git a/Build/source/libs/lua52/aclocal.m4 b/Build/source/libs/lua52/aclocal.m4 deleted file mode 100644 index f614d40abae..00000000000 --- a/Build/source/libs/lua52/aclocal.m4 +++ /dev/null @@ -1,1183 +0,0 @@ -# generated automatically by aclocal 1.16.1 -*- Autoconf -*- - 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See PLATS for possible values. -PLAT= none - -# Where to install. The installation starts in the src and doc directories, -# so take care if INSTALL_TOP is not an absolute path. See the local target. -# You may want to make INSTALL_LMOD and INSTALL_CMOD consistent with -# LUA_ROOT, LUA_LDIR, and LUA_CDIR in luaconf.h. -INSTALL_TOP= /usr/local -INSTALL_BIN= $(INSTALL_TOP)/bin -INSTALL_INC= $(INSTALL_TOP)/include -INSTALL_LIB= $(INSTALL_TOP)/lib -INSTALL_MAN= $(INSTALL_TOP)/man/man1 -INSTALL_LMOD= $(INSTALL_TOP)/share/lua/$V -INSTALL_CMOD= $(INSTALL_TOP)/lib/lua/$V - -# How to install. 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-This is Lua 5.2.4, released on 25 Feb 2015.
-
-For installation instructions, license details, and
-further information about Lua, see doc/readme.html.
-
diff --git a/Build/source/libs/lua52/lua52-src/doc/contents.html b/Build/source/libs/lua52/lua52-src/doc/contents.html deleted file mode 100644 index 89516c18c3a..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/contents.html +++ /dev/null @@ -1,608 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<HTML>
-<HEAD>
-<TITLE>Lua 5.2 Reference Manual - contents</TITLE>
-<LINK REL="stylesheet" TYPE="text/css" HREF="lua.css">
-<META HTTP-EQUIV="content-type" CONTENT="text/html; charset=iso-8859-1">
-<STYLE TYPE="text/css">
-ul {
- list-style-type: none ;
-}
-</STYLE>
-</HEAD>
-
-<BODY>
-
-<HR>
-<H1>
-<A HREF="http://www.lua.org/"><IMG SRC="logo.gif" ALT="" BORDER=0></A>
-Lua 5.2 Reference Manual
-</H1>
-
-<P>
-The reference manual is the official definition of the Lua language.
-For a complete introduction to Lua programming, see the book
-<A HREF="http://www.lua.org/pil/">Programming in Lua</A>.
-
-<P>
-<A HREF="manual.html">start</A>
-·
-<A HREF="#contents">contents</A>
-·
-<A HREF="#index">index</A>
-<HR>
-<SMALL>
-Copyright © 2011–2015 Lua.org, PUC-Rio.
-Freely available under the terms of the
-<A HREF="http://www.lua.org/license.html">Lua license</A>.
-</SMALL>
-
-<H2><A NAME="contents">Contents</A></H2>
-<UL style="padding: 0">
-<LI><A HREF="manual.html">1 – Introduction</A>
-<P>
-<LI><A HREF="manual.html#2">2 – Basic Concepts</A>
-<UL>
-<LI><A HREF="manual.html#2.1">2.1 – Values and Types</A>
-<LI><A HREF="manual.html#2.2">2.2 – Environments and the Global Environment</A>
-<LI><A HREF="manual.html#2.3">2.3 – Error Handling</A>
-<LI><A HREF="manual.html#2.4">2.4 – Metatables and Metamethods</A>
-<LI><A HREF="manual.html#2.5">2.5 – Garbage Collection</A>
-<UL>
-<LI><A HREF="manual.html#2.5.1">2.5.1 – Garbage-Collection Metamethods</A>
-<LI><A HREF="manual.html#2.5.2">2.5.2 – Weak Tables</A>
-</UL>
-<LI><A HREF="manual.html#2.6">2.6 – Coroutines</A>
-</UL>
-<P>
-<LI><A HREF="manual.html#3">3 – The Language</A>
-<UL>
-<LI><A HREF="manual.html#3.1">3.1 – Lexical Conventions</A>
-<LI><A HREF="manual.html#3.2">3.2 – Variables</A>
-<LI><A HREF="manual.html#3.3">3.3 – Statements</A>
-<UL>
-<LI><A HREF="manual.html#3.3.1">3.3.1 – Blocks</A>
-<LI><A HREF="manual.html#3.3.2">3.3.2 – Chunks</A>
-<LI><A HREF="manual.html#3.3.3">3.3.3 – Assignment</A>
-<LI><A HREF="manual.html#3.3.4">3.3.4 – Control Structures</A>
-<LI><A HREF="manual.html#3.3.5">3.3.5 – For Statement</A>
-<LI><A HREF="manual.html#3.3.6">3.3.6 – Function Calls as Statements</A>
-<LI><A HREF="manual.html#3.3.7">3.3.7 – Local Declarations</A>
-</UL>
-<LI><A HREF="manual.html#3.4">3.4 – Expressions</A>
-<UL>
-<LI><A HREF="manual.html#3.4.1">3.4.1 – Arithmetic Operators</A>
-<LI><A HREF="manual.html#3.4.2">3.4.2 – Coercion</A>
-<LI><A HREF="manual.html#3.4.3">3.4.3 – Relational Operators</A>
-<LI><A HREF="manual.html#3.4.4">3.4.4 – Logical Operators</A>
-<LI><A HREF="manual.html#3.4.5">3.4.5 – Concatenation</A>
-<LI><A HREF="manual.html#3.4.6">3.4.6 – The Length Operator</A>
-<LI><A HREF="manual.html#3.4.7">3.4.7 – Precedence</A>
-<LI><A HREF="manual.html#3.4.8">3.4.8 – Table Constructors</A>
-<LI><A HREF="manual.html#3.4.9">3.4.9 – Function Calls</A>
-<LI><A HREF="manual.html#3.4.10">3.4.10 – Function Definitions</A>
-</UL>
-<LI><A HREF="manual.html#3.5">3.5 – Visibility Rules</A>
-</UL>
-<P>
-<LI><A HREF="manual.html#4">4 – The Application Program Interface</A>
-<UL>
-<LI><A HREF="manual.html#4.1">4.1 – The Stack</A>
-<LI><A HREF="manual.html#4.2">4.2 – Stack Size</A>
-<LI><A HREF="manual.html#4.3">4.3 – Valid and Acceptable Indices</A>
-<LI><A HREF="manual.html#4.4">4.4 – C Closures</A>
-<LI><A HREF="manual.html#4.5">4.5 – Registry</A>
-<LI><A HREF="manual.html#4.6">4.6 – Error Handling in C</A>
-<LI><A HREF="manual.html#4.7">4.7 – Handling Yields in C</A>
-<LI><A HREF="manual.html#4.8">4.8 – Functions and Types</A>
-<LI><A HREF="manual.html#4.9">4.9 – The Debug Interface</A>
-</UL>
-<P>
-<LI><A HREF="manual.html#5">5 – The Auxiliary Library</A>
-<UL>
-<LI><A HREF="manual.html#5.1">5.1 – Functions and Types</A>
-</UL>
-<P>
-<LI><A HREF="manual.html#6">6 – Standard Libraries</A>
-<UL>
-<LI><A HREF="manual.html#6.1">6.1 – Basic Functions</A>
-<LI><A HREF="manual.html#6.2">6.2 – Coroutine Manipulation</A>
-<LI><A HREF="manual.html#6.3">6.3 – Modules</A>
-<LI><A HREF="manual.html#6.4">6.4 – String Manipulation</A>
-<UL>
-<LI><A HREF="manual.html#6.4.1">6.4.1 – Patterns</A>
-</UL>
-<LI><A HREF="manual.html#6.5">6.5 – Table Manipulation</A>
-<LI><A HREF="manual.html#6.6">6.6 – Mathematical Functions</A>
-<LI><A HREF="manual.html#6.7">6.7 – Bitwise Operations</A>
-<LI><A HREF="manual.html#6.8">6.8 – Input and Output Facilities</A>
-<LI><A HREF="manual.html#6.9">6.9 – Operating System Facilities</A>
-<LI><A HREF="manual.html#6.10">6.10 – The Debug Library</A>
-</UL>
-<P>
-<LI><A HREF="manual.html#7">7 – Lua Standalone</A>
-<P>
-<LI><A HREF="manual.html#8">8 – Incompatibilities with the Previous Version</A>
-<UL>
-<LI><A HREF="manual.html#8.1">8.1 – Changes in the Language</A>
-<LI><A HREF="manual.html#8.2">8.2 – Changes in the Libraries</A>
-<LI><A HREF="manual.html#8.3">8.3 – Changes in the API</A>
-</UL>
-<P>
-<LI><A HREF="manual.html#9">9 – The Complete Syntax of Lua</A>
-</UL>
-
-<H2><A NAME="index">Index</A></H2>
-<TABLE WIDTH="100%">
-<TR VALIGN="top">
-<TD>
-<H3><A NAME="functions">Lua functions</A></H3>
-<P>
-<A HREF="manual.html#6.1">basic</A><BR>
-<A HREF="manual.html#pdf-_G">_G</A><BR>
-<A HREF="manual.html#pdf-_VERSION">_VERSION</A><BR>
-
-<A HREF="manual.html#pdf-assert">assert</A><BR>
-<A HREF="manual.html#pdf-collectgarbage">collectgarbage</A><BR>
-<A HREF="manual.html#pdf-dofile">dofile</A><BR>
-<A HREF="manual.html#pdf-error">error</A><BR>
-<A HREF="manual.html#pdf-getmetatable">getmetatable</A><BR>
-<A HREF="manual.html#pdf-ipairs">ipairs</A><BR>
-<A HREF="manual.html#pdf-load">load</A><BR>
-<A HREF="manual.html#pdf-loadfile">loadfile</A><BR>
-<A HREF="manual.html#pdf-next">next</A><BR>
-<A HREF="manual.html#pdf-pairs">pairs</A><BR>
-<A HREF="manual.html#pdf-pcall">pcall</A><BR>
-<A HREF="manual.html#pdf-print">print</A><BR>
-<A HREF="manual.html#pdf-rawequal">rawequal</A><BR>
-<A HREF="manual.html#pdf-rawget">rawget</A><BR>
-<A HREF="manual.html#pdf-rawlen">rawlen</A><BR>
-<A HREF="manual.html#pdf-rawset">rawset</A><BR>
-<A HREF="manual.html#pdf-require">require</A><BR>
-<A HREF="manual.html#pdf-select">select</A><BR>
-<A HREF="manual.html#pdf-setmetatable">setmetatable</A><BR>
-<A HREF="manual.html#pdf-tonumber">tonumber</A><BR>
-<A HREF="manual.html#pdf-tostring">tostring</A><BR>
-<A HREF="manual.html#pdf-type">type</A><BR>
-<A HREF="manual.html#pdf-xpcall">xpcall</A><BR>
-
-<P>
-<A HREF="manual.html#6.7">bit32</A><BR>
-<A HREF="manual.html#pdf-bit32.arshift">bit32.arshift</A><BR>
-<A HREF="manual.html#pdf-bit32.band">bit32.band</A><BR>
-<A HREF="manual.html#pdf-bit32.bnot">bit32.bnot</A><BR>
-<A HREF="manual.html#pdf-bit32.bor">bit32.bor</A><BR>
-<A HREF="manual.html#pdf-bit32.btest">bit32.btest</A><BR>
-<A HREF="manual.html#pdf-bit32.bxor">bit32.bxor</A><BR>
-<A HREF="manual.html#pdf-bit32.extract">bit32.extract</A><BR>
-<A HREF="manual.html#pdf-bit32.lrotate">bit32.lrotate</A><BR>
-<A HREF="manual.html#pdf-bit32.lshift">bit32.lshift</A><BR>
-<A HREF="manual.html#pdf-bit32.replace">bit32.replace</A><BR>
-<A HREF="manual.html#pdf-bit32.rrotate">bit32.rrotate</A><BR>
-<A HREF="manual.html#pdf-bit32.rshift">bit32.rshift</A><BR>
-
-<P>
-<A HREF="manual.html#6.2">coroutine</A><BR>
-<A HREF="manual.html#pdf-coroutine.create">coroutine.create</A><BR>
-<A HREF="manual.html#pdf-coroutine.resume">coroutine.resume</A><BR>
-<A HREF="manual.html#pdf-coroutine.running">coroutine.running</A><BR>
-<A HREF="manual.html#pdf-coroutine.status">coroutine.status</A><BR>
-<A HREF="manual.html#pdf-coroutine.wrap">coroutine.wrap</A><BR>
-<A HREF="manual.html#pdf-coroutine.yield">coroutine.yield</A><BR>
-
-<P>
-<A HREF="manual.html#6.10">debug</A><BR>
-<A HREF="manual.html#pdf-debug.debug">debug.debug</A><BR>
-<A HREF="manual.html#pdf-debug.getuservalue">debug.getuservalue</A><BR>
-<A HREF="manual.html#pdf-debug.gethook">debug.gethook</A><BR>
-<A HREF="manual.html#pdf-debug.getinfo">debug.getinfo</A><BR>
-<A HREF="manual.html#pdf-debug.getlocal">debug.getlocal</A><BR>
-<A HREF="manual.html#pdf-debug.getmetatable">debug.getmetatable</A><BR>
-<A HREF="manual.html#pdf-debug.getregistry">debug.getregistry</A><BR>
-<A HREF="manual.html#pdf-debug.getupvalue">debug.getupvalue</A><BR>
-<A HREF="manual.html#pdf-debug.setuservalue">debug.setuservalue</A><BR>
-<A HREF="manual.html#pdf-debug.sethook">debug.sethook</A><BR>
-<A HREF="manual.html#pdf-debug.setlocal">debug.setlocal</A><BR>
-<A HREF="manual.html#pdf-debug.setmetatable">debug.setmetatable</A><BR>
-<A HREF="manual.html#pdf-debug.setupvalue">debug.setupvalue</A><BR>
-<A HREF="manual.html#pdf-debug.traceback">debug.traceback</A><BR>
-<A HREF="manual.html#pdf-debug.upvalueid">debug.upvalueid</A><BR>
-<A HREF="manual.html#pdf-debug.upvaluejoin">debug.upvaluejoin</A><BR>
-
-<P>
-<A HREF="manual.html#6.8">io</A><BR>
-<A HREF="manual.html#pdf-io.close">io.close</A><BR>
-<A HREF="manual.html#pdf-io.flush">io.flush</A><BR>
-<A HREF="manual.html#pdf-io.input">io.input</A><BR>
-<A HREF="manual.html#pdf-io.lines">io.lines</A><BR>
-<A HREF="manual.html#pdf-io.open">io.open</A><BR>
-<A HREF="manual.html#pdf-io.output">io.output</A><BR>
-<A HREF="manual.html#pdf-io.popen">io.popen</A><BR>
-<A HREF="manual.html#pdf-io.read">io.read</A><BR>
-<A HREF="manual.html#pdf-io.stderr">io.stderr</A><BR>
-<A HREF="manual.html#pdf-io.stdin">io.stdin</A><BR>
-<A HREF="manual.html#pdf-io.stdout">io.stdout</A><BR>
-<A HREF="manual.html#pdf-io.tmpfile">io.tmpfile</A><BR>
-<A HREF="manual.html#pdf-io.type">io.type</A><BR>
-<A HREF="manual.html#pdf-io.write">io.write</A><BR>
-<A HREF="manual.html#pdf-file:close">file:close</A><BR>
-<A HREF="manual.html#pdf-file:flush">file:flush</A><BR>
-<A HREF="manual.html#pdf-file:lines">file:lines</A><BR>
-<A HREF="manual.html#pdf-file:read">file:read</A><BR>
-<A HREF="manual.html#pdf-file:seek">file:seek</A><BR>
-<A HREF="manual.html#pdf-file:setvbuf">file:setvbuf</A><BR>
-<A HREF="manual.html#pdf-file:write">file:write</A><BR>
-
-</TD>
-<TD>
-<H3> </H3>
-<P>
-<A HREF="manual.html#6.6">math</A><BR>
-<A HREF="manual.html#pdf-math.abs">math.abs</A><BR>
-<A HREF="manual.html#pdf-math.acos">math.acos</A><BR>
-<A HREF="manual.html#pdf-math.asin">math.asin</A><BR>
-<A HREF="manual.html#pdf-math.atan">math.atan</A><BR>
-<A HREF="manual.html#pdf-math.atan2">math.atan2</A><BR>
-<A HREF="manual.html#pdf-math.ceil">math.ceil</A><BR>
-<A HREF="manual.html#pdf-math.cos">math.cos</A><BR>
-<A HREF="manual.html#pdf-math.cosh">math.cosh</A><BR>
-<A HREF="manual.html#pdf-math.deg">math.deg</A><BR>
-<A HREF="manual.html#pdf-math.exp">math.exp</A><BR>
-<A HREF="manual.html#pdf-math.floor">math.floor</A><BR>
-<A HREF="manual.html#pdf-math.fmod">math.fmod</A><BR>
-<A HREF="manual.html#pdf-math.frexp">math.frexp</A><BR>
-<A HREF="manual.html#pdf-math.huge">math.huge</A><BR>
-<A HREF="manual.html#pdf-math.ldexp">math.ldexp</A><BR>
-<A HREF="manual.html#pdf-math.log">math.log</A><BR>
-<A HREF="manual.html#pdf-math.max">math.max</A><BR>
-<A HREF="manual.html#pdf-math.min">math.min</A><BR>
-<A HREF="manual.html#pdf-math.modf">math.modf</A><BR>
-<A HREF="manual.html#pdf-math.pi">math.pi</A><BR>
-<A HREF="manual.html#pdf-math.pow">math.pow</A><BR>
-<A HREF="manual.html#pdf-math.rad">math.rad</A><BR>
-<A HREF="manual.html#pdf-math.random">math.random</A><BR>
-<A HREF="manual.html#pdf-math.randomseed">math.randomseed</A><BR>
-<A HREF="manual.html#pdf-math.sin">math.sin</A><BR>
-<A HREF="manual.html#pdf-math.sinh">math.sinh</A><BR>
-<A HREF="manual.html#pdf-math.sqrt">math.sqrt</A><BR>
-<A HREF="manual.html#pdf-math.tan">math.tan</A><BR>
-<A HREF="manual.html#pdf-math.tanh">math.tanh</A><BR>
-
-<P>
-<A HREF="manual.html#6.9">os</A><BR>
-<A HREF="manual.html#pdf-os.clock">os.clock</A><BR>
-<A HREF="manual.html#pdf-os.date">os.date</A><BR>
-<A HREF="manual.html#pdf-os.difftime">os.difftime</A><BR>
-<A HREF="manual.html#pdf-os.execute">os.execute</A><BR>
-<A HREF="manual.html#pdf-os.exit">os.exit</A><BR>
-<A HREF="manual.html#pdf-os.getenv">os.getenv</A><BR>
-<A HREF="manual.html#pdf-os.remove">os.remove</A><BR>
-<A HREF="manual.html#pdf-os.rename">os.rename</A><BR>
-<A HREF="manual.html#pdf-os.setlocale">os.setlocale</A><BR>
-<A HREF="manual.html#pdf-os.time">os.time</A><BR>
-<A HREF="manual.html#pdf-os.tmpname">os.tmpname</A><BR>
-
-<P>
-<A HREF="manual.html#6.3">package</A><BR>
-<A HREF="manual.html#pdf-package.config">package.config</A><BR>
-<A HREF="manual.html#pdf-package.cpath">package.cpath</A><BR>
-<A HREF="manual.html#pdf-package.loaded">package.loaded</A><BR>
-<A HREF="manual.html#pdf-package.loadlib">package.loadlib</A><BR>
-<A HREF="manual.html#pdf-package.path">package.path</A><BR>
-<A HREF="manual.html#pdf-package.preload">package.preload</A><BR>
-<A HREF="manual.html#pdf-package.searchers">package.searchers</A><BR>
-<A HREF="manual.html#pdf-package.searchpath">package.searchpath</A><BR>
-
-<P>
-<A HREF="manual.html#6.4">string</A><BR>
-<A HREF="manual.html#pdf-string.byte">string.byte</A><BR>
-<A HREF="manual.html#pdf-string.char">string.char</A><BR>
-<A HREF="manual.html#pdf-string.dump">string.dump</A><BR>
-<A HREF="manual.html#pdf-string.find">string.find</A><BR>
-<A HREF="manual.html#pdf-string.format">string.format</A><BR>
-<A HREF="manual.html#pdf-string.gmatch">string.gmatch</A><BR>
-<A HREF="manual.html#pdf-string.gsub">string.gsub</A><BR>
-<A HREF="manual.html#pdf-string.len">string.len</A><BR>
-<A HREF="manual.html#pdf-string.lower">string.lower</A><BR>
-<A HREF="manual.html#pdf-string.match">string.match</A><BR>
-<A HREF="manual.html#pdf-string.rep">string.rep</A><BR>
-<A HREF="manual.html#pdf-string.reverse">string.reverse</A><BR>
-<A HREF="manual.html#pdf-string.sub">string.sub</A><BR>
-<A HREF="manual.html#pdf-string.upper">string.upper</A><BR>
-
-<P>
-<A HREF="manual.html#6.5">table</A><BR>
-<A HREF="manual.html#pdf-table.concat">table.concat</A><BR>
-<A HREF="manual.html#pdf-table.insert">table.insert</A><BR>
-<A HREF="manual.html#pdf-table.pack">table.pack</A><BR>
-<A HREF="manual.html#pdf-table.remove">table.remove</A><BR>
-<A HREF="manual.html#pdf-table.sort">table.sort</A><BR>
-<A HREF="manual.html#pdf-table.unpack">table.unpack</A><BR>
-
-<H3><A NAME="env">environment<BR>variables</A></H3>
-<A HREF="manual.html#pdf-LUA_CPATH">LUA_CPATH</A><BR>
-<A HREF="manual.html#pdf-LUA_CPATH_5_2">LUA_CPATH_5_2</A><BR>
-<A HREF="manual.html#pdf-LUA_INIT">LUA_INIT</A><BR>
-<A HREF="manual.html#pdf-LUA_INIT_5_2">LUA_INIT_5_2</A><BR>
-<A HREF="manual.html#pdf-LUA_PATH">LUA_PATH</A><BR>
-<A HREF="manual.html#pdf-LUA_PATH_5_2">LUA_PATH_5_2</A><BR>
-
-</TD>
-<TD>
-<H3>C API</H3>
-<P>
-<A HREF="manual.html#lua_Alloc">lua_Alloc</A><BR>
-<A HREF="manual.html#lua_CFunction">lua_CFunction</A><BR>
-<A HREF="manual.html#lua_Debug">lua_Debug</A><BR>
-<A HREF="manual.html#lua_Hook">lua_Hook</A><BR>
-<A HREF="manual.html#lua_Integer">lua_Integer</A><BR>
-<A HREF="manual.html#lua_Number">lua_Number</A><BR>
-<A HREF="manual.html#lua_Reader">lua_Reader</A><BR>
-<A HREF="manual.html#lua_State">lua_State</A><BR>
-<A HREF="manual.html#lua_Unsigned">lua_Unsigned</A><BR>
-<A HREF="manual.html#lua_Writer">lua_Writer</A><BR>
-
-<P>
-<A HREF="manual.html#lua_absindex">lua_absindex</A><BR>
-<A HREF="manual.html#lua_arith">lua_arith</A><BR>
-<A HREF="manual.html#lua_atpanic">lua_atpanic</A><BR>
-<A HREF="manual.html#lua_call">lua_call</A><BR>
-<A HREF="manual.html#lua_callk">lua_callk</A><BR>
-<A HREF="manual.html#lua_checkstack">lua_checkstack</A><BR>
-<A HREF="manual.html#lua_close">lua_close</A><BR>
-<A HREF="manual.html#lua_compare">lua_compare</A><BR>
-<A HREF="manual.html#lua_concat">lua_concat</A><BR>
-<A HREF="manual.html#lua_copy">lua_copy</A><BR>
-<A HREF="manual.html#lua_createtable">lua_createtable</A><BR>
-<A HREF="manual.html#lua_dump">lua_dump</A><BR>
-<A HREF="manual.html#lua_error">lua_error</A><BR>
-<A HREF="manual.html#lua_gc">lua_gc</A><BR>
-<A HREF="manual.html#lua_getallocf">lua_getallocf</A><BR>
-<A HREF="manual.html#lua_getctx">lua_getctx</A><BR>
-<A HREF="manual.html#lua_getfield">lua_getfield</A><BR>
-<A HREF="manual.html#lua_getglobal">lua_getglobal</A><BR>
-<A HREF="manual.html#lua_gethook">lua_gethook</A><BR>
-<A HREF="manual.html#lua_gethookcount">lua_gethookcount</A><BR>
-<A HREF="manual.html#lua_gethookmask">lua_gethookmask</A><BR>
-<A HREF="manual.html#lua_getinfo">lua_getinfo</A><BR>
-<A HREF="manual.html#lua_getlocal">lua_getlocal</A><BR>
-<A HREF="manual.html#lua_getmetatable">lua_getmetatable</A><BR>
-<A HREF="manual.html#lua_getstack">lua_getstack</A><BR>
-<A HREF="manual.html#lua_gettable">lua_gettable</A><BR>
-<A HREF="manual.html#lua_gettop">lua_gettop</A><BR>
-<A HREF="manual.html#lua_getupvalue">lua_getupvalue</A><BR>
-<A HREF="manual.html#lua_getuservalue">lua_getuservalue</A><BR>
-<A HREF="manual.html#lua_insert">lua_insert</A><BR>
-<A HREF="manual.html#lua_isboolean">lua_isboolean</A><BR>
-<A HREF="manual.html#lua_iscfunction">lua_iscfunction</A><BR>
-<A HREF="manual.html#lua_isfunction">lua_isfunction</A><BR>
-<A HREF="manual.html#lua_islightuserdata">lua_islightuserdata</A><BR>
-<A HREF="manual.html#lua_isnil">lua_isnil</A><BR>
-<A HREF="manual.html#lua_isnone">lua_isnone</A><BR>
-<A HREF="manual.html#lua_isnoneornil">lua_isnoneornil</A><BR>
-<A HREF="manual.html#lua_isnumber">lua_isnumber</A><BR>
-<A HREF="manual.html#lua_isstring">lua_isstring</A><BR>
-<A HREF="manual.html#lua_istable">lua_istable</A><BR>
-<A HREF="manual.html#lua_isthread">lua_isthread</A><BR>
-<A HREF="manual.html#lua_isuserdata">lua_isuserdata</A><BR>
-<A HREF="manual.html#lua_len">lua_len</A><BR>
-<A HREF="manual.html#lua_load">lua_load</A><BR>
-<A HREF="manual.html#lua_newstate">lua_newstate</A><BR>
-<A HREF="manual.html#lua_newtable">lua_newtable</A><BR>
-<A HREF="manual.html#lua_newthread">lua_newthread</A><BR>
-<A HREF="manual.html#lua_newuserdata">lua_newuserdata</A><BR>
-<A HREF="manual.html#lua_next">lua_next</A><BR>
-<A HREF="manual.html#lua_pcall">lua_pcall</A><BR>
-<A HREF="manual.html#lua_pcallk">lua_pcallk</A><BR>
-<A HREF="manual.html#lua_pop">lua_pop</A><BR>
-<A HREF="manual.html#lua_pushboolean">lua_pushboolean</A><BR>
-<A HREF="manual.html#lua_pushcclosure">lua_pushcclosure</A><BR>
-<A HREF="manual.html#lua_pushcfunction">lua_pushcfunction</A><BR>
-<A HREF="manual.html#lua_pushfstring">lua_pushfstring</A><BR>
-<A HREF="manual.html#lua_pushglobaltable">lua_pushglobaltable</A><BR>
-<A HREF="manual.html#lua_pushinteger">lua_pushinteger</A><BR>
-<A HREF="manual.html#lua_pushlightuserdata">lua_pushlightuserdata</A><BR>
-<A HREF="manual.html#lua_pushliteral">lua_pushliteral</A><BR>
-<A HREF="manual.html#lua_pushlstring">lua_pushlstring</A><BR>
-<A HREF="manual.html#lua_pushnil">lua_pushnil</A><BR>
-<A HREF="manual.html#lua_pushnumber">lua_pushnumber</A><BR>
-<A HREF="manual.html#lua_pushstring">lua_pushstring</A><BR>
-<A HREF="manual.html#lua_pushthread">lua_pushthread</A><BR>
-<A HREF="manual.html#lua_pushunsigned">lua_pushunsigned</A><BR>
-<A HREF="manual.html#lua_pushvalue">lua_pushvalue</A><BR>
-<A HREF="manual.html#lua_pushvfstring">lua_pushvfstring</A><BR>
-<A HREF="manual.html#lua_rawequal">lua_rawequal</A><BR>
-<A HREF="manual.html#lua_rawget">lua_rawget</A><BR>
-<A HREF="manual.html#lua_rawgeti">lua_rawgeti</A><BR>
-<A HREF="manual.html#lua_rawgetp">lua_rawgetp</A><BR>
-<A HREF="manual.html#lua_rawlen">lua_rawlen</A><BR>
-<A HREF="manual.html#lua_rawset">lua_rawset</A><BR>
-<A HREF="manual.html#lua_rawseti">lua_rawseti</A><BR>
-<A HREF="manual.html#lua_rawsetp">lua_rawsetp</A><BR>
-<A HREF="manual.html#lua_register">lua_register</A><BR>
-<A HREF="manual.html#lua_remove">lua_remove</A><BR>
-<A HREF="manual.html#lua_replace">lua_replace</A><BR>
-<A HREF="manual.html#lua_resume">lua_resume</A><BR>
-<A HREF="manual.html#lua_setallocf">lua_setallocf</A><BR>
-<A HREF="manual.html#lua_setfield">lua_setfield</A><BR>
-<A HREF="manual.html#lua_setglobal">lua_setglobal</A><BR>
-<A HREF="manual.html#lua_sethook">lua_sethook</A><BR>
-<A HREF="manual.html#lua_setlocal">lua_setlocal</A><BR>
-<A HREF="manual.html#lua_setmetatable">lua_setmetatable</A><BR>
-<A HREF="manual.html#lua_settable">lua_settable</A><BR>
-<A HREF="manual.html#lua_settop">lua_settop</A><BR>
-<A HREF="manual.html#lua_setupvalue">lua_setupvalue</A><BR>
-<A HREF="manual.html#lua_setuservalue">lua_setuservalue</A><BR>
-<A HREF="manual.html#lua_status">lua_status</A><BR>
-<A HREF="manual.html#lua_toboolean">lua_toboolean</A><BR>
-<A HREF="manual.html#lua_tocfunction">lua_tocfunction</A><BR>
-<A HREF="manual.html#lua_tointeger">lua_tointeger</A><BR>
-<A HREF="manual.html#lua_tointegerx">lua_tointegerx</A><BR>
-<A HREF="manual.html#lua_tolstring">lua_tolstring</A><BR>
-<A HREF="manual.html#lua_tonumber">lua_tonumber</A><BR>
-<A HREF="manual.html#lua_tonumberx">lua_tonumberx</A><BR>
-<A HREF="manual.html#lua_topointer">lua_topointer</A><BR>
-<A HREF="manual.html#lua_tostring">lua_tostring</A><BR>
-<A HREF="manual.html#lua_tothread">lua_tothread</A><BR>
-<A HREF="manual.html#lua_tounsigned">lua_tounsigned</A><BR>
-<A HREF="manual.html#lua_tounsignedx">lua_tounsignedx</A><BR>
-<A HREF="manual.html#lua_touserdata">lua_touserdata</A><BR>
-<A HREF="manual.html#lua_type">lua_type</A><BR>
-<A HREF="manual.html#lua_typename">lua_typename</A><BR>
-<A HREF="manual.html#lua_upvalueid">lua_upvalueid</A><BR>
-<A HREF="manual.html#lua_upvalueindex">lua_upvalueindex</A><BR>
-<A HREF="manual.html#lua_upvaluejoin">lua_upvaluejoin</A><BR>
-<A HREF="manual.html#lua_version">lua_version</A><BR>
-<A HREF="manual.html#lua_xmove">lua_xmove</A><BR>
-<A HREF="manual.html#lua_yield">lua_yield</A><BR>
-<A HREF="manual.html#lua_yieldk">lua_yieldk</A><BR>
-
-</TD>
-<TD>
-<H3>auxiliary library</H3>
-<P>
-<A HREF="manual.html#luaL_Buffer">luaL_Buffer</A><BR>
-<A HREF="manual.html#luaL_Reg">luaL_Reg</A><BR>
-
-<P>
-<A HREF="manual.html#luaL_addchar">luaL_addchar</A><BR>
-<A HREF="manual.html#luaL_addlstring">luaL_addlstring</A><BR>
-<A HREF="manual.html#luaL_addsize">luaL_addsize</A><BR>
-<A HREF="manual.html#luaL_addstring">luaL_addstring</A><BR>
-<A HREF="manual.html#luaL_addvalue">luaL_addvalue</A><BR>
-<A HREF="manual.html#luaL_argcheck">luaL_argcheck</A><BR>
-<A HREF="manual.html#luaL_argerror">luaL_argerror</A><BR>
-<A HREF="manual.html#luaL_buffinit">luaL_buffinit</A><BR>
-<A HREF="manual.html#luaL_buffinitsize">luaL_buffinitsize</A><BR>
-<A HREF="manual.html#luaL_callmeta">luaL_callmeta</A><BR>
-<A HREF="manual.html#luaL_checkany">luaL_checkany</A><BR>
-<A HREF="manual.html#luaL_checkint">luaL_checkint</A><BR>
-<A HREF="manual.html#luaL_checkinteger">luaL_checkinteger</A><BR>
-<A HREF="manual.html#luaL_checklong">luaL_checklong</A><BR>
-<A HREF="manual.html#luaL_checklstring">luaL_checklstring</A><BR>
-<A HREF="manual.html#luaL_checknumber">luaL_checknumber</A><BR>
-<A HREF="manual.html#luaL_checkoption">luaL_checkoption</A><BR>
-<A HREF="manual.html#luaL_checkstack">luaL_checkstack</A><BR>
-<A HREF="manual.html#luaL_checkstring">luaL_checkstring</A><BR>
-<A HREF="manual.html#luaL_checktype">luaL_checktype</A><BR>
-<A HREF="manual.html#luaL_checkudata">luaL_checkudata</A><BR>
-<A HREF="manual.html#luaL_checkunsigned">luaL_checkunsigned</A><BR>
-<A HREF="manual.html#luaL_checkversion">luaL_checkversion</A><BR>
-<A HREF="manual.html#luaL_dofile">luaL_dofile</A><BR>
-<A HREF="manual.html#luaL_dostring">luaL_dostring</A><BR>
-<A HREF="manual.html#luaL_error">luaL_error</A><BR>
-<A HREF="manual.html#luaL_execresult">luaL_execresult</A><BR>
-<A HREF="manual.html#luaL_fileresult">luaL_fileresult</A><BR>
-<A HREF="manual.html#luaL_getmetafield">luaL_getmetafield</A><BR>
-<A HREF="manual.html#luaL_getmetatable">luaL_getmetatable</A><BR>
-<A HREF="manual.html#luaL_getsubtable">luaL_getsubtable</A><BR>
-<A HREF="manual.html#luaL_gsub">luaL_gsub</A><BR>
-<A HREF="manual.html#luaL_len">luaL_len</A><BR>
-<A HREF="manual.html#luaL_loadbuffer">luaL_loadbuffer</A><BR>
-<A HREF="manual.html#luaL_loadbufferx">luaL_loadbufferx</A><BR>
-<A HREF="manual.html#luaL_loadfile">luaL_loadfile</A><BR>
-<A HREF="manual.html#luaL_loadfilex">luaL_loadfilex</A><BR>
-<A HREF="manual.html#luaL_loadstring">luaL_loadstring</A><BR>
-<A HREF="manual.html#luaL_newlib">luaL_newlib</A><BR>
-<A HREF="manual.html#luaL_newlibtable">luaL_newlibtable</A><BR>
-<A HREF="manual.html#luaL_newmetatable">luaL_newmetatable</A><BR>
-<A HREF="manual.html#luaL_newstate">luaL_newstate</A><BR>
-<A HREF="manual.html#luaL_openlibs">luaL_openlibs</A><BR>
-<A HREF="manual.html#luaL_optint">luaL_optint</A><BR>
-<A HREF="manual.html#luaL_optinteger">luaL_optinteger</A><BR>
-<A HREF="manual.html#luaL_optlong">luaL_optlong</A><BR>
-<A HREF="manual.html#luaL_optlstring">luaL_optlstring</A><BR>
-<A HREF="manual.html#luaL_optnumber">luaL_optnumber</A><BR>
-<A HREF="manual.html#luaL_optstring">luaL_optstring</A><BR>
-<A HREF="manual.html#luaL_optunsigned">luaL_optunsigned</A><BR>
-<A HREF="manual.html#luaL_prepbuffer">luaL_prepbuffer</A><BR>
-<A HREF="manual.html#luaL_prepbuffsize">luaL_prepbuffsize</A><BR>
-<A HREF="manual.html#luaL_pushresult">luaL_pushresult</A><BR>
-<A HREF="manual.html#luaL_pushresultsize">luaL_pushresultsize</A><BR>
-<A HREF="manual.html#luaL_ref">luaL_ref</A><BR>
-<A HREF="manual.html#luaL_requiref">luaL_requiref</A><BR>
-<A HREF="manual.html#luaL_setfuncs">luaL_setfuncs</A><BR>
-<A HREF="manual.html#luaL_setmetatable">luaL_setmetatable</A><BR>
-<A HREF="manual.html#luaL_testudata">luaL_testudata</A><BR>
-<A HREF="manual.html#luaL_tolstring">luaL_tolstring</A><BR>
-<A HREF="manual.html#luaL_traceback">luaL_traceback</A><BR>
-<A HREF="manual.html#luaL_typename">luaL_typename</A><BR>
-<A HREF="manual.html#luaL_unref">luaL_unref</A><BR>
-<A HREF="manual.html#luaL_where">luaL_where</A><BR>
-
-<H3><A NAME="library">standard library</A></H3>
-<P>
-<A HREF="manual.html#pdf-luaopen_base">luaopen_base</A><BR>
-<A HREF="manual.html#pdf-luaopen_bit32">luaopen_bit32</A><BR>
-<A HREF="manual.html#pdf-luaopen_coroutine">luaopen_coroutine</A><BR>
-<A HREF="manual.html#pdf-luaopen_debug">luaopen_debug</A><BR>
-<A HREF="manual.html#pdf-luaopen_io">luaopen_io</A><BR>
-<A HREF="manual.html#pdf-luaopen_math">luaopen_math</A><BR>
-<A HREF="manual.html#pdf-luaopen_os">luaopen_os</A><BR>
-<A HREF="manual.html#pdf-luaopen_package">luaopen_package</A><BR>
-<A HREF="manual.html#pdf-luaopen_string">luaopen_string</A><BR>
-<A HREF="manual.html#pdf-luaopen_table">luaopen_table</A><BR>
-
-<H3><A NAME="constants">constants</A></H3>
-<A HREF="manual.html#pdf-LUA_ERRERR">LUA_ERRERR</A><BR>
-<A HREF="manual.html#pdf-LUA_ERRFILE">LUA_ERRFILE</A><BR>
-<A HREF="manual.html#pdf-LUA_ERRGCMM">LUA_ERRGCMM</A><BR>
-<A HREF="manual.html#pdf-LUA_ERRMEM">LUA_ERRMEM</A><BR>
-<A HREF="manual.html#pdf-LUA_ERRRUN">LUA_ERRRUN</A><BR>
-<A HREF="manual.html#pdf-LUA_ERRSYNTAX">LUA_ERRSYNTAX</A><BR>
-<A HREF="manual.html#pdf-LUA_HOOKCALL">LUA_HOOKCALL</A><BR>
-<A HREF="manual.html#pdf-LUA_HOOKCOUNT">LUA_HOOKCOUNT</A><BR>
-<A HREF="manual.html#pdf-LUA_HOOKLINE">LUA_HOOKLINE</A><BR>
-<A HREF="manual.html#pdf-LUA_HOOKRET">LUA_HOOKRET</A><BR>
-<A HREF="manual.html#pdf-LUA_HOOKTAILCALL">LUA_HOOKTAILCALL</A><BR>
-<A HREF="manual.html#pdf-LUA_MASKCALL">LUA_MASKCALL</A><BR>
-<A HREF="manual.html#pdf-LUA_MASKCOUNT">LUA_MASKCOUNT</A><BR>
-<A HREF="manual.html#pdf-LUA_MASKLINE">LUA_MASKLINE</A><BR>
-<A HREF="manual.html#pdf-LUA_MASKRET">LUA_MASKRET</A><BR>
-<A HREF="manual.html#pdf-LUA_MINSTACK">LUA_MINSTACK</A><BR>
-<A HREF="manual.html#pdf-LUA_MULTRET">LUA_MULTRET</A><BR>
-<A HREF="manual.html#pdf-LUA_NOREF">LUA_NOREF</A><BR>
-<A HREF="manual.html#pdf-LUA_OK">LUA_OK</A><BR>
-<A HREF="manual.html#pdf-LUA_OPADD">LUA_OPADD</A><BR>
-<A HREF="manual.html#pdf-LUA_OPDIV">LUA_OPDIV</A><BR>
-<A HREF="manual.html#pdf-LUA_OPEQ">LUA_OPEQ</A><BR>
-<A HREF="manual.html#pdf-LUA_OPLE">LUA_OPLE</A><BR>
-<A HREF="manual.html#pdf-LUA_OPLT">LUA_OPLT</A><BR>
-<A HREF="manual.html#pdf-LUA_OPMOD">LUA_OPMOD</A><BR>
-<A HREF="manual.html#pdf-LUA_OPMUL">LUA_OPMUL</A><BR>
-<A HREF="manual.html#pdf-LUA_OPPOW">LUA_OPPOW</A><BR>
-<A HREF="manual.html#pdf-LUA_OPSUB">LUA_OPSUB</A><BR>
-<A HREF="manual.html#pdf-LUA_OPUNM">LUA_OPUNM</A><BR>
-<A HREF="manual.html#pdf-LUA_REFNIL">LUA_REFNIL</A><BR>
-<A HREF="manual.html#pdf-LUA_REGISTRYINDEX">LUA_REGISTRYINDEX</A><BR>
-<A HREF="manual.html#pdf-LUA_RIDX_GLOBALS">LUA_RIDX_GLOBALS</A><BR>
-<A HREF="manual.html#pdf-LUA_RIDX_MAINTHREAD">LUA_RIDX_MAINTHREAD</A><BR>
-<A HREF="manual.html#pdf-LUA_TBOOLEAN">LUA_TBOOLEAN</A><BR>
-<A HREF="manual.html#pdf-LUA_TFUNCTION">LUA_TFUNCTION</A><BR>
-<A HREF="manual.html#pdf-LUA_TLIGHTUSERDATA">LUA_TLIGHTUSERDATA</A><BR>
-<A HREF="manual.html#pdf-LUA_TNIL">LUA_TNIL</A><BR>
-<A HREF="manual.html#pdf-LUA_TNONE">LUA_TNONE</A><BR>
-<A HREF="manual.html#pdf-LUA_TNUMBER">LUA_TNUMBER</A><BR>
-<A HREF="manual.html#pdf-LUA_TSTRING">LUA_TSTRING</A><BR>
-<A HREF="manual.html#pdf-LUA_TTABLE">LUA_TTABLE</A><BR>
-<A HREF="manual.html#pdf-LUA_TTHREAD">LUA_TTHREAD</A><BR>
-<A HREF="manual.html#pdf-LUA_TUSERDATA">LUA_TUSERDATA</A><BR>
-<A HREF="manual.html#pdf-LUA_USE_APICHECK">LUA_USE_APICHECK</A><BR>
-<A HREF="manual.html#pdf-LUA_YIELD">LUA_YIELD</A><BR>
-<A HREF="manual.html#pdf-LUAL_BUFFERSIZE">LUAL_BUFFERSIZE</A><BR>
-
-</TD>
-</TR>
-</TABLE>
-
-<HR>
-<SMALL CLASS="footer">
-Last update:
-Mon Feb 23 22:24:36 BRT 2015
-</SMALL>
-<!--
-Last change: revised for Lua 5.2.4
--->
-
-</BODY>
-</HTML>
diff --git a/Build/source/libs/lua52/lua52-src/doc/logo.gif b/Build/source/libs/lua52/lua52-src/doc/logo.gif Binary files differdeleted file mode 100644 index 2f5e4ac2e74..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/logo.gif +++ /dev/null diff --git a/Build/source/libs/lua52/lua52-src/doc/lua.1 b/Build/source/libs/lua52/lua52-src/doc/lua.1 deleted file mode 100644 index 6d3aa8c360a..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/lua.1 +++ /dev/null @@ -1,116 +0,0 @@ -.\" $Id: lua.man,v 1.13 2011/11/16 17:16:53 lhf Exp $
-.TH LUA 1 "$Date: 2011/11/16 17:16:53 $"
-.SH NAME
-lua \- Lua interpreter
-.SH SYNOPSIS
-.B lua
-[
-.I options
-]
-[
-.I script
-[
-.I args
-]
-]
-.SH DESCRIPTION
-.B lua
-is the standalone Lua interpreter.
-It loads and executes Lua programs,
-either in textual source form or
-in precompiled binary form.
-(Precompiled binaries are output by
-.BR luac ,
-the Lua compiler.)
-.B lua
-can be used as a batch interpreter and also interactively.
-.LP
-The given
-.I options
-are handled in order and then
-the Lua program in file
-.I script
-is loaded and executed.
-The given
-.I args
-are available to
-.I script
-as strings in a global table named
-.BR arg .
-If no options or arguments are given,
-then
-.B "\-v \-i"
-is assumed when the standard input is a terminal;
-otherwise,
-.B "\-"
-is assumed.
-.LP
-In interactive mode,
-.B lua
-prompts the user,
-reads lines from the standard input,
-and executes them as they are read.
-If a line does not contain a complete statement,
-then a secondary prompt is displayed and
-lines are read until a complete statement is formed or
-a syntax error is found.
-If a line starts with
-.BR '=' ,
-then
-.B lua
-evaluates and displays
-the values of the expressions in the remainder of the line.
-.LP
-At the very start,
-before even handling the command line,
-.B lua
-checks the contents of the environment variables
-.B LUA_INIT_5_2
-or
-.BR LUA_INIT ,
-in that order.
-If the contents is of the form
-.RI '@ filename ',
-then
-.I filename
-is executed.
-Otherwise, the string is assumed to be a Lua statement and is executed.
-.SH OPTIONS
-.TP
-.BI \-e " stat"
-execute statement
-.IR stat .
-.TP
-.B \-i
-enter interactive mode after executing
-.IR script .
-.TP
-.BI \-l " name"
-execute the equivalent of
-.IB name =require(' name ')
-before executing
-.IR script .
-.TP
-.B \-v
-show version information.
-.TP
-.B \-E
-ignore environment variables.
-.TP
-.B \-\-
-stop handling options.
-.TP
-.B \-
-stop handling options and execute the standard input as a file.
-.SH "SEE ALSO"
-.BR luac (1)
-.br
-The documentation at lua.org,
-especially section 7 of the reference manual.
-.SH DIAGNOSTICS
-Error messages should be self explanatory.
-.SH AUTHORS
-R. Ierusalimschy,
-L. H. de Figueiredo,
-W. Celes
-.\" EOF
diff --git a/Build/source/libs/lua52/lua52-src/doc/lua.css b/Build/source/libs/lua52/lua52-src/doc/lua.css deleted file mode 100644 index 2d2e19def7b..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/lua.css +++ /dev/null @@ -1,106 +0,0 @@ -html {
- background-color: #F8F8F8 ;
-}
-
-body {
- border: solid #a0a0a0 1px ;
- border-radius: 20px ;
- padding: 26px ;
- margin: 16px ;
- color: #000000 ;
- background-color: #FFFFFF ;
- font-family: Helvetica, Arial, sans-serif ;
- text-align: justify ;
- line-height: 1.25 ;
-}
-
-h1, h2, h3, h4 {
- font-family: Verdana, Geneva, sans-serif ;
- font-weight: normal ;
- font-style: normal ;
-}
-
-h2 {
- padding-top: 0.4em ;
- padding-bottom: 0.4em ;
- padding-left: 0.8em ;
- padding-right: 0.8em ;
- background-color: #D0D0FF ;
- border-radius: 8px ;
- border: solid #a0a0a0 1px ;
-}
-
-h3 {
- padding-left: 0.5em ;
- border-left: solid #D0D0FF 1em ;
-}
-
-table h3 {
- padding-left: 0px ;
- border-left: none ;
-}
-
-a:link {
- color: #000080 ;
- background-color: inherit ;
- text-decoration: none ;
-}
-
-a:visited {
- background-color: inherit ;
- text-decoration: none ;
-}
-
-a:link:hover, a:visited:hover {
- color: #000080 ;
- background-color: #D0D0FF ;
- border-radius: 4px ;
-}
-
-a:link:active, a:visited:active {
- color: #FF0000 ;
-}
-
-h1 a img {
- vertical-align: text-bottom ;
-}
-
-hr {
- border: 0 ;
- height: 1px ;
- color: #a0a0a0 ;
- background-color: #a0a0a0 ;
- display: none ;
-}
-
-table hr {
- display: block ;
-}
-
-:target {
- background-color: #F8F8F8 ;
- padding: 8px ;
- border: solid #a0a0a0 2px ;
- border-radius: 8px ;
-}
-
-.footer {
- color: gray ;
- font-size: x-small ;
-}
-
-input[type=text] {
- border: solid #a0a0a0 2px ;
- border-radius: 2em ;
- background-image: url('images/search.png') ;
- background-repeat: no-repeat ;
- background-position: 4px center ;
- padding-left: 20px ;
- height: 2em ;
-}
-
-pre.session {
- background-color: #F8F8F8 ;
- padding: 1em ;
- border-radius: 8px ;
-}
diff --git a/Build/source/libs/lua52/lua52-src/doc/luac.1 b/Build/source/libs/lua52/lua52-src/doc/luac.1 deleted file mode 100644 index 9d8f475f527..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/luac.1 +++ /dev/null @@ -1,118 +0,0 @@ -.\" $Id: luac.man,v 1.29 2011/11/16 13:53:40 lhf Exp $
-.TH LUAC 1 "$Date: 2011/11/16 13:53:40 $"
-.SH NAME
-luac \- Lua compiler
-.SH SYNOPSIS
-.B luac
-[
-.I options
-] [
-.I filenames
-]
-.SH DESCRIPTION
-.B luac
-is the Lua compiler.
-It translates programs written in the Lua programming language
-into binary files containing precompiled chunks
-that can be later loaded and executed.
-.LP
-The main advantages of precompiling chunks are:
-faster loading,
-protecting source code from accidental user changes,
-and
-off-line syntax checking.
-Precompiling does not imply faster execution
-because in Lua chunks are always compiled into bytecodes before being executed.
-.B luac
-simply allows those bytecodes to be saved in a file for later execution.
-Precompiled chunks are not necessarily smaller than the corresponding source.
-The main goal in precompiling is faster loading.
-.LP
-In the command line,
-you can mix
-text files containing Lua source and
-binary files containing precompiled chunks.
-.B luac
-produces a single output file containing the combined bytecodes
-for all files given.
-Executing the combined file is equivalent to executing the given files.
-By default,
-the output file is named
-.BR luac.out ,
-but you can change this with the
-.B \-o
-option.
-.LP
-Precompiled chunks are
-.I not
-portable across different architectures.
-Moreover,
-the internal format of precompiled chunks
-is likely to change when a new version of Lua is released.
-Make sure you save the source files of all Lua programs that you precompile.
-.LP
-.SH OPTIONS
-.TP
-.B \-l
-produce a listing of the compiled bytecode for Lua's virtual machine.
-Listing bytecodes is useful to learn about Lua's virtual machine.
-If no files are given, then
-.B luac
-loads
-.B luac.out
-and lists its contents.
-Use
-.B \-l \-l
-for a full listing.
-.TP
-.BI \-o " file"
-output to
-.IR file ,
-instead of the default
-.BR luac.out .
-(You can use
-.B "'\-'"
-for standard output,
-but not on platforms that open standard output in text mode.)
-The output file may be one of the given files because
-all files are loaded before the output file is written.
-Be careful not to overwrite precious files.
-.TP
-.B \-p
-load files but do not generate any output file.
-Used mainly for syntax checking and for testing precompiled chunks:
-corrupted files will probably generate errors when loaded.
-If no files are given, then
-.B luac
-loads
-.B luac.out
-and tests its contents.
-No messages are displayed if the file loads without errors.
-.TP
-.B \-s
-strip debug information before writing the output file.
-This saves some space in very large chunks,
-but if errors occur when running a stripped chunk,
-then the error messages may not contain the full information they usually do.
-In particular,
-line numbers and names of local variables are lost.
-.TP
-.B \-v
-show version information.
-.TP
-.B \-\-
-stop handling options.
-.TP
-.B \-
-stop handling options and process standard input.
-.SH "SEE ALSO"
-.BR lua (1)
-.br
-The documentation at lua.org.
-.SH DIAGNOSTICS
-Error messages should be self explanatory.
-.SH AUTHORS
-R. Ierusalimschy,
-L. H. de Figueiredo,
-W. Celes
-.\" EOF
diff --git a/Build/source/libs/lua52/lua52-src/doc/manual.css b/Build/source/libs/lua52/lua52-src/doc/manual.css deleted file mode 100644 index 375f7e7f5cf..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/manual.css +++ /dev/null @@ -1,27 +0,0 @@ -h3 code {
- font-family: inherit ;
- font-size: inherit ;
-}
-
-pre, code {
- font-size: 12pt ;
-}
-
-span.apii {
- float: right ;
- font-family: inherit ;
- font-style: normal ;
- font-size: small ;
- color: gray ;
-}
-
-p+h1, ul+h1 {
- font-style: normal ;
- padding-top: 0.4em ;
- padding-bottom: 0.4em ;
- padding-left: 16px ;
- margin-left: -16px ;
- background-color: #D0D0FF ;
- border-radius: 8px ;
- border: solid #000080 1px ;
-}
diff --git a/Build/source/libs/lua52/lua52-src/doc/manual.html b/Build/source/libs/lua52/lua52-src/doc/manual.html deleted file mode 100644 index 26d4e58e1d3..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/manual.html +++ /dev/null @@ -1,10508 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
-
-<head>
-<title>Lua 5.2 Reference Manual</title>
-<link rel="stylesheet" type="text/css" href="lua.css">
-<link rel="stylesheet" type="text/css" href="manual.css">
-<META HTTP-EQUIV="content-type" CONTENT="text/html; charset=iso-8859-1">
-</head>
-
-<body>
-
-<hr>
-<h1>
-<a href="http://www.lua.org/"><img src="logo.gif" alt="" border="0"></a>
-Lua 5.2 Reference Manual
-</h1>
-
-by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, Waldemar Celes
-<p>
-<small>
-Copyright © 2011–2015 Lua.org, PUC-Rio.
-Freely available under the terms of the
-<a href="http://www.lua.org/license.html">Lua license</a>.
-</small>
-<hr>
-<p>
-
-<a href="contents.html#contents">contents</A>
-·
-<a href="contents.html#index">index</A>
-
-<!-- ====================================================================== -->
-<p>
-
-<!-- $Id: manual.of,v 1.104 2013/06/01 00:13:11 roberto Exp $ -->
-
-
-
-
-<h1>1 – <a name="1">Introduction</a></h1>
-
-<p>
-Lua is an extension programming language designed to support
-general procedural programming with data description
-facilities.
-It also offers good support for object-oriented programming,
-functional programming, and data-driven programming.
-Lua is intended to be used as a powerful, lightweight,
-embeddable scripting language for any program that needs one.
-Lua is implemented as a library, written in <em>clean C</em>,
-the common subset of Standard C and C++.
-
-
-<p>
-Being an extension language, Lua has no notion of a "main" program:
-it only works <em>embedded</em> in a host client,
-called the <em>embedding program</em> or simply the <em>host</em>.
-The host program can invoke functions to execute a piece of Lua code,
-can write and read Lua variables,
-and can register C functions to be called by Lua code.
-Through the use of C functions, Lua can be augmented to cope with
-a wide range of different domains,
-thus creating customized programming languages sharing a syntactical framework.
-The Lua distribution includes a sample host program called <code>lua</code>,
-which uses the Lua library to offer a complete, standalone Lua interpreter,
-for interactive or batch use.
-
-
-<p>
-Lua is free software,
-and is provided as usual with no guarantees,
-as stated in its license.
-The implementation described in this manual is available
-at Lua's official web site, <code>www.lua.org</code>.
-
-
-<p>
-Like any other reference manual,
-this document is dry in places.
-For a discussion of the decisions behind the design of Lua,
-see the technical papers available at Lua's web site.
-For a detailed introduction to programming in Lua,
-see Roberto's book, <em>Programming in Lua</em>.
-
-
-
-<h1>2 – <a name="2">Basic Concepts</a></h1>
-
-<p>
-This section describes the basic concepts of the language.
-
-
-
-<h2>2.1 – <a name="2.1">Values and Types</a></h2>
-
-<p>
-Lua is a <em>dynamically typed language</em>.
-This means that
-variables do not have types; only values do.
-There are no type definitions in the language.
-All values carry their own type.
-
-
-<p>
-All values in Lua are <em>first-class values</em>.
-This means that all values can be stored in variables,
-passed as arguments to other functions, and returned as results.
-
-
-<p>
-There are eight basic types in Lua:
-<em>nil</em>, <em>boolean</em>, <em>number</em>,
-<em>string</em>, <em>function</em>, <em>userdata</em>,
-<em>thread</em>, and <em>table</em>.
-<em>Nil</em> is the type of the value <b>nil</b>,
-whose main property is to be different from any other value;
-it usually represents the absence of a useful value.
-<em>Boolean</em> is the type of the values <b>false</b> and <b>true</b>.
-Both <b>nil</b> and <b>false</b> make a condition false;
-any other value makes it true.
-<em>Number</em> represents real (double-precision floating-point) numbers.
-Operations on numbers follow the same rules of
-the underlying C implementation,
-which, in turn, usually follows the IEEE 754 standard.
-(It is easy to build Lua interpreters that use other
-internal representations for numbers,
-such as single-precision floats or long integers;
-see file <code>luaconf.h</code>.)
-<em>String</em> represents immutable sequences of bytes.
-
-Lua is 8-bit clean:
-strings can contain any 8-bit value,
-including embedded zeros ('<code>\0</code>').
-
-
-<p>
-Lua can call (and manipulate) functions written in Lua and
-functions written in C
-(see <a href="#3.4.9">§3.4.9</a>).
-
-
-<p>
-The type <em>userdata</em> is provided to allow arbitrary C data to
-be stored in Lua variables.
-A userdata value is a pointer to a block of raw memory.
-There are two kinds of userdata:
-full userdata, where the block of memory is managed by Lua,
-and light userdata, where the block of memory is managed by the host.
-Userdata has no predefined operations in Lua,
-except assignment and identity test.
-By using <em>metatables</em>,
-the programmer can define operations for full userdata values
-(see <a href="#2.4">§2.4</a>).
-Userdata values cannot be created or modified in Lua,
-only through the C API.
-This guarantees the integrity of data owned by the host program.
-
-
-<p>
-The type <em>thread</em> represents independent threads of execution
-and it is used to implement coroutines (see <a href="#2.6">§2.6</a>).
-Do not confuse Lua threads with operating-system threads.
-Lua supports coroutines on all systems,
-even those that do not support threads.
-
-
-<p>
-The type <em>table</em> implements associative arrays,
-that is, arrays that can be indexed not only with numbers,
-but with any Lua value except <b>nil</b> and NaN
-(<em>Not a Number</em>, a special numeric value used to represent
-undefined or unrepresentable results, such as <code>0/0</code>).
-Tables can be <em>heterogeneous</em>;
-that is, they can contain values of all types (except <b>nil</b>).
-Any key with value <b>nil</b> is not considered part of the table.
-Conversely, any key that is not part of a table has
-an associated value <b>nil</b>.
-
-
-<p>
-Tables are the sole data structuring mechanism in Lua;
-they can be used to represent ordinary arrays, sequences,
-symbol tables, sets, records, graphs, trees, etc.
-To represent records, Lua uses the field name as an index.
-The language supports this representation by
-providing <code>a.name</code> as syntactic sugar for <code>a["name"]</code>.
-There are several convenient ways to create tables in Lua
-(see <a href="#3.4.8">§3.4.8</a>).
-
-
-<p>
-We use the term <em>sequence</em> to denote a table where
-the set of all positive numeric keys is equal to <em>{1..n}</em>
-for some integer <em>n</em>,
-which is called the length of the sequence (see <a href="#3.4.6">§3.4.6</a>).
-
-
-<p>
-Like indices,
-the values of table fields can be of any type.
-In particular,
-because functions are first-class values,
-table fields can contain functions.
-Thus tables can also carry <em>methods</em> (see <a href="#3.4.10">§3.4.10</a>).
-
-
-<p>
-The indexing of tables follows
-the definition of raw equality in the language.
-The expressions <code>a[i]</code> and <code>a[j]</code>
-denote the same table element
-if and only if <code>i</code> and <code>j</code> are raw equal
-(that is, equal without metamethods).
-
-
-<p>
-Tables, functions, threads, and (full) userdata values are <em>objects</em>:
-variables do not actually <em>contain</em> these values,
-only <em>references</em> to them.
-Assignment, parameter passing, and function returns
-always manipulate references to such values;
-these operations do not imply any kind of copy.
-
-
-<p>
-The library function <a href="#pdf-type"><code>type</code></a> returns a string describing the type
-of a given value (see <a href="#6.1">§6.1</a>).
-
-
-
-
-
-<h2>2.2 – <a name="2.2">Environments and the Global Environment</a></h2>
-
-<p>
-As will be discussed in <a href="#3.2">§3.2</a> and <a href="#3.3.3">§3.3.3</a>,
-any reference to a global name <code>var</code> is syntactically translated
-to <code>_ENV.var</code>.
-Moreover, every chunk is compiled in the scope of
-an external local variable called <code>_ENV</code> (see <a href="#3.3.2">§3.3.2</a>),
-so <code>_ENV</code> itself is never a global name in a chunk.
-
-
-<p>
-Despite the existence of this external <code>_ENV</code> variable and
-the translation of global names,
-<code>_ENV</code> is a completely regular name.
-In particular,
-you can define new variables and parameters with that name.
-Each reference to a global name uses the <code>_ENV</code> that is
-visible at that point in the program,
-following the usual visibility rules of Lua (see <a href="#3.5">§3.5</a>).
-
-
-<p>
-Any table used as the value of <code>_ENV</code> is called an <em>environment</em>.
-
-
-<p>
-Lua keeps a distinguished environment called the <em>global environment</em>.
-This value is kept at a special index in the C registry (see <a href="#4.5">§4.5</a>).
-In Lua, the variable <a href="#pdf-_G"><code>_G</code></a> is initialized with this same value.
-
-
-<p>
-When Lua compiles a chunk,
-it initializes the value of its <code>_ENV</code> upvalue
-with the global environment (see <a href="#pdf-load"><code>load</code></a>).
-Therefore, by default,
-global variables in Lua code refer to entries in the global environment.
-Moreover, all standard libraries are loaded in the global environment
-and several functions there operate on that environment.
-You can use <a href="#pdf-load"><code>load</code></a> (or <a href="#pdf-loadfile"><code>loadfile</code></a>)
-to load a chunk with a different environment.
-(In C, you have to load the chunk and then change the value
-of its first upvalue.)
-
-
-<p>
-If you change the global environment in the registry
-(through C code or the debug library),
-all chunks loaded after the change will get the new environment.
-Previously loaded chunks are not affected, however,
-as each has its own reference to the environment in its <code>_ENV</code> variable.
-Moreover, the variable <a href="#pdf-_G"><code>_G</code></a>
-(which is stored in the original global environment)
-is never updated by Lua.
-
-
-
-
-
-<h2>2.3 – <a name="2.3">Error Handling</a></h2>
-
-<p>
-Because Lua is an embedded extension language,
-all Lua actions start from C code in the host program
-calling a function from the Lua library (see <a href="#lua_pcall"><code>lua_pcall</code></a>).
-Whenever an error occurs during
-the compilation or execution of a Lua chunk,
-control returns to the host,
-which can take appropriate measures
-(such as printing an error message).
-
-
-<p>
-Lua code can explicitly generate an error by calling the
-<a href="#pdf-error"><code>error</code></a> function.
-If you need to catch errors in Lua,
-you can use <a href="#pdf-pcall"><code>pcall</code></a> or <a href="#pdf-xpcall"><code>xpcall</code></a>
-to call a given function in <em>protected mode</em>.
-
-
-<p>
-Whenever there is an error,
-an <em>error object</em> (also called an <em>error message</em>)
-is propagated with information about the error.
-Lua itself only generates errors where the error object is a string,
-but programs may generate errors with
-any value for the error object.
-
-
-<p>
-When you use <a href="#pdf-xpcall"><code>xpcall</code></a> or <a href="#lua_pcall"><code>lua_pcall</code></a>,
-you may give a <em>message handler</em>
-to be called in case of errors.
-This function is called with the original error message
-and returns a new error message.
-It is called before the error unwinds the stack,
-so that it can gather more information about the error,
-for instance by inspecting the stack and creating a stack traceback.
-This message handler is still protected by the protected call;
-so, an error inside the message handler
-will call the message handler again.
-If this loop goes on, Lua breaks it and returns an appropriate message.
-
-
-
-
-
-<h2>2.4 – <a name="2.4">Metatables and Metamethods</a></h2>
-
-<p>
-Every value in Lua can have a <em>metatable</em>.
-This <em>metatable</em> is an ordinary Lua table
-that defines the behavior of the original value
-under certain special operations.
-You can change several aspects of the behavior
-of operations over a value by setting specific fields in its metatable.
-For instance, when a non-numeric value is the operand of an addition,
-Lua checks for a function in the field "<code>__add</code>" of the value's metatable.
-If it finds one,
-Lua calls this function to perform the addition.
-
-
-<p>
-The keys in a metatable are derived from the <em>event</em> names;
-the corresponding values are called <em>metamethods</em>.
-In the previous example, the event is <code>"add"</code>
-and the metamethod is the function that performs the addition.
-
-
-<p>
-You can query the metatable of any value
-using the <a href="#pdf-getmetatable"><code>getmetatable</code></a> function.
-
-
-<p>
-You can replace the metatable of tables
-using the <a href="#pdf-setmetatable"><code>setmetatable</code></a> function.
-You cannot change the metatable of other types from Lua
-(except by using the debug library);
-you must use the C API for that.
-
-
-<p>
-Tables and full userdata have individual metatables
-(although multiple tables and userdata can share their metatables).
-Values of all other types share one single metatable per type;
-that is, there is one single metatable for all numbers,
-one for all strings, etc.
-By default, a value has no metatable,
-but the string library sets a metatable for the string type (see <a href="#6.4">§6.4</a>).
-
-
-<p>
-A metatable controls how an object behaves in arithmetic operations,
-order comparisons, concatenation, length operation, and indexing.
-A metatable also can define a function to be called
-when a userdata or a table is garbage collected.
-When Lua performs one of these operations over a value,
-it checks whether this value has a metatable with the corresponding event.
-If so, the value associated with that key (the metamethod)
-controls how Lua will perform the operation.
-
-
-<p>
-Metatables control the operations listed next.
-Each operation is identified by its corresponding name.
-The key for each operation is a string with its name prefixed by
-two underscores, '<code>__</code>';
-for instance, the key for operation "add" is the
-string "<code>__add</code>".
-
-
-<p>
-The semantics of these operations is better explained by a Lua function
-describing how the interpreter executes the operation.
-The code shown here in Lua is only illustrative;
-the real behavior is hard coded in the interpreter
-and it is much more efficient than this simulation.
-All functions used in these descriptions
-(<a href="#pdf-rawget"><code>rawget</code></a>, <a href="#pdf-tonumber"><code>tonumber</code></a>, etc.)
-are described in <a href="#6.1">§6.1</a>.
-In particular, to retrieve the metamethod of a given object,
-we use the expression
-
-<pre>
- metatable(obj)[event]
-</pre><p>
-This should be read as
-
-<pre>
- rawget(getmetatable(obj) or {}, event)
-</pre><p>
-This means that the access to a metamethod does not invoke other metamethods,
-and access to objects with no metatables does not fail
-(it simply results in <b>nil</b>).
-
-
-<p>
-For the unary <code>-</code> and <code>#</code> operators,
-the metamethod is called with a dummy second argument.
-This extra argument is only to simplify Lua's internals;
-it may be removed in future versions and therefore it is not present
-in the following code.
-(For most uses this extra argument is irrelevant.)
-
-
-
-<ul>
-
-<li><b>"add": </b>
-the <code>+</code> operation.
-
-
-
-<p>
-The function <code>getbinhandler</code> below defines how Lua chooses a handler
-for a binary operation.
-First, Lua tries the first operand.
-If its type does not define a handler for the operation,
-then Lua tries the second operand.
-
-<pre>
- function getbinhandler (op1, op2, event)
- return metatable(op1)[event] or metatable(op2)[event]
- end
-</pre><p>
-By using this function,
-the behavior of the <code>op1 + op2</code> is
-
-<pre>
- function add_event (op1, op2)
- local o1, o2 = tonumber(op1), tonumber(op2)
- if o1 and o2 then -- both operands are numeric?
- return o1 + o2 -- '+' here is the primitive 'add'
- else -- at least one of the operands is not numeric
- local h = getbinhandler(op1, op2, "__add")
- if h then
- -- call the handler with both operands
- return (h(op1, op2))
- else -- no handler available: default behavior
- error(···)
- end
- end
- end
-</pre><p>
-</li>
-
-<li><b>"sub": </b>
-the <code>-</code> operation.
-
-Behavior similar to the "add" operation.
-</li>
-
-<li><b>"mul": </b>
-the <code>*</code> operation.
-
-Behavior similar to the "add" operation.
-</li>
-
-<li><b>"div": </b>
-the <code>/</code> operation.
-
-Behavior similar to the "add" operation.
-</li>
-
-<li><b>"mod": </b>
-the <code>%</code> operation.
-
-Behavior similar to the "add" operation,
-with the operation
-<code>o1 - floor(o1/o2)*o2</code> as the primitive operation.
-</li>
-
-<li><b>"pow": </b>
-the <code>^</code> (exponentiation) operation.
-
-Behavior similar to the "add" operation,
-with the function <code>pow</code> (from the C math library)
-as the primitive operation.
-</li>
-
-<li><b>"unm": </b>
-the unary <code>-</code> operation.
-
-
-<pre>
- function unm_event (op)
- local o = tonumber(op)
- if o then -- operand is numeric?
- return -o -- '-' here is the primitive 'unm'
- else -- the operand is not numeric.
- -- Try to get a handler from the operand
- local h = metatable(op).__unm
- if h then
- -- call the handler with the operand
- return (h(op))
- else -- no handler available: default behavior
- error(···)
- end
- end
- end
-</pre><p>
-</li>
-
-<li><b>"concat": </b>
-the <code>..</code> (concatenation) operation.
-
-
-<pre>
- function concat_event (op1, op2)
- if (type(op1) == "string" or type(op1) == "number") and
- (type(op2) == "string" or type(op2) == "number") then
- return op1 .. op2 -- primitive string concatenation
- else
- local h = getbinhandler(op1, op2, "__concat")
- if h then
- return (h(op1, op2))
- else
- error(···)
- end
- end
- end
-</pre><p>
-</li>
-
-<li><b>"len": </b>
-the <code>#</code> operation.
-
-
-<pre>
- function len_event (op)
- if type(op) == "string" then
- return strlen(op) -- primitive string length
- else
- local h = metatable(op).__len
- if h then
- return (h(op)) -- call handler with the operand
- elseif type(op) == "table" then
- return #op -- primitive table length
- else -- no handler available: error
- error(···)
- end
- end
- end
-</pre><p>
-See <a href="#3.4.6">§3.4.6</a> for a description of the length of a table.
-</li>
-
-<li><b>"eq": </b>
-the <code>==</code> operation.
-
-The function <code>getequalhandler</code> defines how Lua chooses a metamethod
-for equality.
-A metamethod is selected only when both values
-being compared have the same type
-and the same metamethod for the selected operation,
-and the values are either tables or full userdata.
-
-<pre>
- function getequalhandler (op1, op2)
- if type(op1) ~= type(op2) or
- (type(op1) ~= "table" and type(op1) ~= "userdata") then
- return nil -- different values
- end
- local mm1 = metatable(op1).__eq
- local mm2 = metatable(op2).__eq
- if mm1 == mm2 then return mm1 else return nil end
- end
-</pre><p>
-The "eq" event is defined as follows:
-
-<pre>
- function eq_event (op1, op2)
- if op1 == op2 then -- primitive equal?
- return true -- values are equal
- end
- -- try metamethod
- local h = getequalhandler(op1, op2)
- if h then
- return not not h(op1, op2)
- else
- return false
- end
- end
-</pre><p>
-Note that the result is always a boolean.
-</li>
-
-<li><b>"lt": </b>
-the <code><</code> operation.
-
-
-<pre>
- function lt_event (op1, op2)
- if type(op1) == "number" and type(op2) == "number" then
- return op1 < op2 -- numeric comparison
- elseif type(op1) == "string" and type(op2) == "string" then
- return op1 < op2 -- lexicographic comparison
- else
- local h = getbinhandler(op1, op2, "__lt")
- if h then
- return not not h(op1, op2)
- else
- error(···)
- end
- end
- end
-</pre><p>
-Note that the result is always a boolean.
-</li>
-
-<li><b>"le": </b>
-the <code><=</code> operation.
-
-
-<pre>
- function le_event (op1, op2)
- if type(op1) == "number" and type(op2) == "number" then
- return op1 <= op2 -- numeric comparison
- elseif type(op1) == "string" and type(op2) == "string" then
- return op1 <= op2 -- lexicographic comparison
- else
- local h = getbinhandler(op1, op2, "__le")
- if h then
- return not not h(op1, op2)
- else
- h = getbinhandler(op1, op2, "__lt")
- if h then
- return not h(op2, op1)
- else
- error(···)
- end
- end
- end
- end
-</pre><p>
-Note that, in the absence of a "le" metamethod,
-Lua tries the "lt", assuming that <code>a <= b</code> is
-equivalent to <code>not (b < a)</code>.
-
-
-<p>
-As with the other comparison operators,
-the result is always a boolean.
-</li>
-
-<li><b>"index": </b>
-The indexing access <code>table[key]</code>.
-Note that the metamethod is tried only
-when <code>key</code> is not present in <code>table</code>.
-(When <code>table</code> is not a table,
-no key is ever present,
-so the metamethod is always tried.)
-
-
-<pre>
- function gettable_event (table, key)
- local h
- if type(table) == "table" then
- local v = rawget(table, key)
- -- if key is present, return raw value
- if v ~= nil then return v end
- h = metatable(table).__index
- if h == nil then return nil end
- else
- h = metatable(table).__index
- if h == nil then
- error(···)
- end
- end
- if type(h) == "function" then
- return (h(table, key)) -- call the handler
- else return h[key] -- or repeat operation on it
- end
- end
-</pre><p>
-</li>
-
-<li><b>"newindex": </b>
-The indexing assignment <code>table[key] = value</code>.
-Note that the metamethod is tried only
-when <code>key</code> is not present in <code>table</code>.
-
-
-<pre>
- function settable_event (table, key, value)
- local h
- if type(table) == "table" then
- local v = rawget(table, key)
- -- if key is present, do raw assignment
- if v ~= nil then rawset(table, key, value); return end
- h = metatable(table).__newindex
- if h == nil then rawset(table, key, value); return end
- else
- h = metatable(table).__newindex
- if h == nil then
- error(···)
- end
- end
- if type(h) == "function" then
- h(table, key,value) -- call the handler
- else h[key] = value -- or repeat operation on it
- end
- end
-</pre><p>
-</li>
-
-<li><b>"call": </b>
-called when Lua calls a value.
-
-
-<pre>
- function function_event (func, ...)
- if type(func) == "function" then
- return func(...) -- primitive call
- else
- local h = metatable(func).__call
- if h then
- return h(func, ...)
- else
- error(···)
- end
- end
- end
-</pre><p>
-</li>
-
-</ul>
-
-
-
-
-<h2>2.5 – <a name="2.5">Garbage Collection</a></h2>
-
-<p>
-Lua performs automatic memory management.
-This means that
-you have to worry neither about allocating memory for new objects
-nor about freeing it when the objects are no longer needed.
-Lua manages memory automatically by running
-a <em>garbage collector</em> to collect all <em>dead objects</em>
-(that is, objects that are no longer accessible from Lua).
-All memory used by Lua is subject to automatic management:
-strings, tables, userdata, functions, threads, internal structures, etc.
-
-
-<p>
-Lua implements an incremental mark-and-sweep collector.
-It uses two numbers to control its garbage-collection cycles:
-the <em>garbage-collector pause</em> and
-the <em>garbage-collector step multiplier</em>.
-Both use percentage points as units
-(e.g., a value of 100 means an internal value of 1).
-
-
-<p>
-The garbage-collector pause
-controls how long the collector waits before starting a new cycle.
-Larger values make the collector less aggressive.
-Values smaller than 100 mean the collector will not wait to
-start a new cycle.
-A value of 200 means that the collector waits for the total memory in use
-to double before starting a new cycle.
-
-
-<p>
-The garbage-collector step multiplier
-controls the relative speed of the collector relative to
-memory allocation.
-Larger values make the collector more aggressive but also increase
-the size of each incremental step.
-Values smaller than 100 make the collector too slow and
-can result in the collector never finishing a cycle.
-The default is 200,
-which means that the collector runs at "twice"
-the speed of memory allocation.
-
-
-<p>
-If you set the step multiplier to a very large number
-(larger than 10% of the maximum number of
-bytes that the program may use),
-the collector behaves like a stop-the-world collector.
-If you then set the pause to 200,
-the collector behaves as in old Lua versions,
-doing a complete collection every time Lua doubles its
-memory usage.
-
-
-<p>
-You can change these numbers by calling <a href="#lua_gc"><code>lua_gc</code></a> in C
-or <a href="#pdf-collectgarbage"><code>collectgarbage</code></a> in Lua.
-You can also use these functions to control
-the collector directly (e.g., stop and restart it).
-
-
-<p>
-As an experimental feature in Lua 5.2,
-you can change the collector's operation mode
-from incremental to <em>generational</em>.
-A <em>generational collector</em> assumes that most objects die young,
-and therefore it traverses only young (recently created) objects.
-This behavior can reduce the time used by the collector,
-but also increases memory usage (as old dead objects may accumulate).
-To mitigate this second problem,
-from time to time the generational collector performs a full collection.
-Remember that this is an experimental feature;
-you are welcome to try it,
-but check your gains.
-
-
-
-<h3>2.5.1 – <a name="2.5.1">Garbage-Collection Metamethods</a></h3>
-
-<p>
-You can set garbage-collector metamethods for tables
-and, using the C API,
-for full userdata (see <a href="#2.4">§2.4</a>).
-These metamethods are also called <em>finalizers</em>.
-Finalizers allow you to coordinate Lua's garbage collection
-with external resource management
-(such as closing files, network or database connections,
-or freeing your own memory).
-
-
-<p>
-For an object (table or userdata) to be finalized when collected,
-you must <em>mark</em> it for finalization.
-
-You mark an object for finalization when you set its metatable
-and the metatable has a field indexed by the string "<code>__gc</code>".
-Note that if you set a metatable without a <code>__gc</code> field
-and later create that field in the metatable,
-the object will not be marked for finalization.
-However, after an object is marked,
-you can freely change the <code>__gc</code> field of its metatable.
-
-
-<p>
-When a marked object becomes garbage,
-it is not collected immediately by the garbage collector.
-Instead, Lua puts it in a list.
-After the collection,
-Lua does the equivalent of the following function
-for each object in that list:
-
-<pre>
- function gc_event (obj)
- local h = metatable(obj).__gc
- if type(h) == "function" then
- h(obj)
- end
- end
-</pre>
-
-<p>
-At the end of each garbage-collection cycle,
-the finalizers for objects are called in
-the reverse order that they were marked for collection,
-among those collected in that cycle;
-that is, the first finalizer to be called is the one associated
-with the object marked last in the program.
-The execution of each finalizer may occur at any point during
-the execution of the regular code.
-
-
-<p>
-Because the object being collected must still be used by the finalizer,
-it (and other objects accessible only through it)
-must be <em>resurrected</em> by Lua.
-Usually, this resurrection is transient,
-and the object memory is freed in the next garbage-collection cycle.
-However, if the finalizer stores the object in some global place
-(e.g., a global variable),
-then there is a permanent resurrection.
-In any case,
-the object memory is freed only when it becomes completely inaccessible;
-its finalizer will never be called twice.
-
-
-<p>
-When you close a state (see <a href="#lua_close"><code>lua_close</code></a>),
-Lua calls the finalizers of all objects marked for finalization,
-following the reverse order that they were marked.
-If any finalizer marks new objects for collection during that phase,
-these new objects will not be finalized.
-
-
-
-
-
-<h3>2.5.2 – <a name="2.5.2">Weak Tables</a></h3>
-
-<p>
-A <em>weak table</em> is a table whose elements are
-<em>weak references</em>.
-A weak reference is ignored by the garbage collector.
-In other words,
-if the only references to an object are weak references,
-then the garbage collector will collect that object.
-
-
-<p>
-A weak table can have weak keys, weak values, or both.
-A table with weak keys allows the collection of its keys,
-but prevents the collection of its values.
-A table with both weak keys and weak values allows the collection of
-both keys and values.
-In any case, if either the key or the value is collected,
-the whole pair is removed from the table.
-The weakness of a table is controlled by the
-<code>__mode</code> field of its metatable.
-If the <code>__mode</code> field is a string containing the character '<code>k</code>',
-the keys in the table are weak.
-If <code>__mode</code> contains '<code>v</code>',
-the values in the table are weak.
-
-
-<p>
-A table with weak keys and strong values
-is also called an <em>ephemeron table</em>.
-In an ephemeron table,
-a value is considered reachable only if its key is reachable.
-In particular,
-if the only reference to a key comes through its value,
-the pair is removed.
-
-
-<p>
-Any change in the weakness of a table may take effect only
-at the next collect cycle.
-In particular, if you change the weakness to a stronger mode,
-Lua may still collect some items from that table
-before the change takes effect.
-
-
-<p>
-Only objects that have an explicit construction
-are removed from weak tables.
-Values, such as numbers and light C functions,
-are not subject to garbage collection,
-and therefore are not removed from weak tables
-(unless its associated value is collected).
-Although strings are subject to garbage collection,
-they do not have an explicit construction,
-and therefore are not removed from weak tables.
-
-
-<p>
-Resurrected objects
-(that is, objects being finalized
-and objects accessible only through objects being finalized)
-have a special behavior in weak tables.
-They are removed from weak values before running their finalizers,
-but are removed from weak keys only in the next collection
-after running their finalizers, when such objects are actually freed.
-This behavior allows the finalizer to access properties
-associated with the object through weak tables.
-
-
-<p>
-If a weak table is among the resurrected objects in a collection cycle,
-it may not be properly cleared until the next cycle.
-
-
-
-
-
-
-
-<h2>2.6 – <a name="2.6">Coroutines</a></h2>
-
-<p>
-Lua supports coroutines,
-also called <em>collaborative multithreading</em>.
-A coroutine in Lua represents an independent thread of execution.
-Unlike threads in multithread systems, however,
-a coroutine only suspends its execution by explicitly calling
-a yield function.
-
-
-<p>
-You create a coroutine by calling <a href="#pdf-coroutine.create"><code>coroutine.create</code></a>.
-Its sole argument is a function
-that is the main function of the coroutine.
-The <code>create</code> function only creates a new coroutine and
-returns a handle to it (an object of type <em>thread</em>);
-it does not start the coroutine.
-
-
-<p>
-You execute a coroutine by calling <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>.
-When you first call <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>,
-passing as its first argument
-a thread returned by <a href="#pdf-coroutine.create"><code>coroutine.create</code></a>,
-the coroutine starts its execution,
-at the first line of its main function.
-Extra arguments passed to <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> are passed on
-to the coroutine main function.
-After the coroutine starts running,
-it runs until it terminates or <em>yields</em>.
-
-
-<p>
-A coroutine can terminate its execution in two ways:
-normally, when its main function returns
-(explicitly or implicitly, after the last instruction);
-and abnormally, if there is an unprotected error.
-In the first case, <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> returns <b>true</b>,
-plus any values returned by the coroutine main function.
-In case of errors, <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> returns <b>false</b>
-plus an error message.
-
-
-<p>
-A coroutine yields by calling <a href="#pdf-coroutine.yield"><code>coroutine.yield</code></a>.
-When a coroutine yields,
-the corresponding <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> returns immediately,
-even if the yield happens inside nested function calls
-(that is, not in the main function,
-but in a function directly or indirectly called by the main function).
-In the case of a yield, <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a> also returns <b>true</b>,
-plus any values passed to <a href="#pdf-coroutine.yield"><code>coroutine.yield</code></a>.
-The next time you resume the same coroutine,
-it continues its execution from the point where it yielded,
-with the call to <a href="#pdf-coroutine.yield"><code>coroutine.yield</code></a> returning any extra
-arguments passed to <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>.
-
-
-<p>
-Like <a href="#pdf-coroutine.create"><code>coroutine.create</code></a>,
-the <a href="#pdf-coroutine.wrap"><code>coroutine.wrap</code></a> function also creates a coroutine,
-but instead of returning the coroutine itself,
-it returns a function that, when called, resumes the coroutine.
-Any arguments passed to this function
-go as extra arguments to <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>.
-<a href="#pdf-coroutine.wrap"><code>coroutine.wrap</code></a> returns all the values returned by <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>,
-except the first one (the boolean error code).
-Unlike <a href="#pdf-coroutine.resume"><code>coroutine.resume</code></a>,
-<a href="#pdf-coroutine.wrap"><code>coroutine.wrap</code></a> does not catch errors;
-any error is propagated to the caller.
-
-
-<p>
-As an example of how coroutines work,
-consider the following code:
-
-<pre>
- function foo (a)
- print("foo", a)
- return coroutine.yield(2*a)
- end
-
- co = coroutine.create(function (a,b)
- print("co-body", a, b)
- local r = foo(a+1)
- print("co-body", r)
- local r, s = coroutine.yield(a+b, a-b)
- print("co-body", r, s)
- return b, "end"
- end)
-
- print("main", coroutine.resume(co, 1, 10))
- print("main", coroutine.resume(co, "r"))
- print("main", coroutine.resume(co, "x", "y"))
- print("main", coroutine.resume(co, "x", "y"))
-</pre><p>
-When you run it, it produces the following output:
-
-<pre>
- co-body 1 10
- foo 2
- main true 4
- co-body r
- main true 11 -9
- co-body x y
- main true 10 end
- main false cannot resume dead coroutine
-</pre>
-
-<p>
-You can also create and manipulate coroutines through the C API:
-see functions <a href="#lua_newthread"><code>lua_newthread</code></a>, <a href="#lua_resume"><code>lua_resume</code></a>,
-and <a href="#lua_yield"><code>lua_yield</code></a>.
-
-
-
-
-
-<h1>3 – <a name="3">The Language</a></h1>
-
-<p>
-This section describes the lexis, the syntax, and the semantics of Lua.
-In other words,
-this section describes
-which tokens are valid,
-how they can be combined,
-and what their combinations mean.
-
-
-<p>
-Language constructs will be explained using the usual extended BNF notation,
-in which
-{<em>a</em>} means 0 or more <em>a</em>'s, and
-[<em>a</em>] means an optional <em>a</em>.
-Non-terminals are shown like non-terminal,
-keywords are shown like <b>kword</b>,
-and other terminal symbols are shown like ‘<b>=</b>’.
-The complete syntax of Lua can be found in <a href="#9">§9</a>
-at the end of this manual.
-
-
-
-<h2>3.1 – <a name="3.1">Lexical Conventions</a></h2>
-
-<p>
-Lua is a free-form language.
-It ignores spaces (including new lines) and comments
-between lexical elements (tokens),
-except as delimiters between names and keywords.
-
-
-<p>
-<em>Names</em>
-(also called <em>identifiers</em>)
-in Lua can be any string of letters,
-digits, and underscores,
-not beginning with a digit.
-Identifiers are used to name variables, table fields, and labels.
-
-
-<p>
-The following <em>keywords</em> are reserved
-and cannot be used as names:
-
-
-<pre>
- and break do else elseif end
- false for function goto if in
- local nil not or repeat return
- then true until while
-</pre>
-
-<p>
-Lua is a case-sensitive language:
-<code>and</code> is a reserved word, but <code>And</code> and <code>AND</code>
-are two different, valid names.
-As a convention, names starting with an underscore followed by
-uppercase letters (such as <a href="#pdf-_VERSION"><code>_VERSION</code></a>)
-are reserved for variables used by Lua.
-
-
-<p>
-The following strings denote other tokens:
-
-<pre>
- + - * / % ^ #
- == ~= <= >= < > =
- ( ) { } [ ] ::
- ; : , . .. ...
-</pre>
-
-<p>
-<em>Literal strings</em>
-can be delimited by matching single or double quotes,
-and can contain the following C-like escape sequences:
-'<code>\a</code>' (bell),
-'<code>\b</code>' (backspace),
-'<code>\f</code>' (form feed),
-'<code>\n</code>' (newline),
-'<code>\r</code>' (carriage return),
-'<code>\t</code>' (horizontal tab),
-'<code>\v</code>' (vertical tab),
-'<code>\\</code>' (backslash),
-'<code>\"</code>' (quotation mark [double quote]),
-and '<code>\'</code>' (apostrophe [single quote]).
-A backslash followed by a real newline
-results in a newline in the string.
-The escape sequence '<code>\z</code>' skips the following span
-of white-space characters,
-including line breaks;
-it is particularly useful to break and indent a long literal string
-into multiple lines without adding the newlines and spaces
-into the string contents.
-
-
-<p>
-A byte in a literal string can also be specified by its numerical value.
-This can be done with the escape sequence <code>\x<em>XX</em></code>,
-where <em>XX</em> is a sequence of exactly two hexadecimal digits,
-or with the escape sequence <code>\<em>ddd</em></code>,
-where <em>ddd</em> is a sequence of up to three decimal digits.
-(Note that if a decimal escape is to be followed by a digit,
-it must be expressed using exactly three digits.)
-Strings in Lua can contain any 8-bit value, including embedded zeros,
-which can be specified as '<code>\0</code>'.
-
-
-<p>
-Literal strings can also be defined using a long format
-enclosed by <em>long brackets</em>.
-We define an <em>opening long bracket of level <em>n</em></em> as an opening
-square bracket followed by <em>n</em> equal signs followed by another
-opening square bracket.
-So, an opening long bracket of level 0 is written as <code>[[</code>,
-an opening long bracket of level 1 is written as <code>[=[</code>,
-and so on.
-A <em>closing long bracket</em> is defined similarly;
-for instance, a closing long bracket of level 4 is written as <code>]====]</code>.
-A <em>long literal</em> starts with an opening long bracket of any level and
-ends at the first closing long bracket of the same level.
-It can contain any text except a closing bracket of the proper level.
-Literals in this bracketed form can run for several lines,
-do not interpret any escape sequences,
-and ignore long brackets of any other level.
-Any kind of end-of-line sequence
-(carriage return, newline, carriage return followed by newline,
-or newline followed by carriage return)
-is converted to a simple newline.
-
-
-<p>
-Any byte in a literal string not
-explicitly affected by the previous rules represents itself.
-However, Lua opens files for parsing in text mode,
-and the system file functions may have problems with
-some control characters.
-So, it is safer to represent
-non-text data as a quoted literal with
-explicit escape sequences for non-text characters.
-
-
-<p>
-For convenience,
-when the opening long bracket is immediately followed by a newline,
-the newline is not included in the string.
-As an example, in a system using ASCII
-(in which '<code>a</code>' is coded as 97,
-newline is coded as 10, and '<code>1</code>' is coded as 49),
-the five literal strings below denote the same string:
-
-<pre>
- a = 'alo\n123"'
- a = "alo\n123\""
- a = '\97lo\10\04923"'
- a = [[alo
- 123"]]
- a = [==[
- alo
- 123"]==]
-</pre>
-
-<p>
-A <em>numerical constant</em> can be written with an optional fractional part
-and an optional decimal exponent,
-marked by a letter '<code>e</code>' or '<code>E</code>'.
-Lua also accepts hexadecimal constants,
-which start with <code>0x</code> or <code>0X</code>.
-Hexadecimal constants also accept an optional fractional part
-plus an optional binary exponent,
-marked by a letter '<code>p</code>' or '<code>P</code>'.
-Examples of valid numerical constants are
-
-<pre>
- 3 3.0 3.1416 314.16e-2 0.31416E1
- 0xff 0x0.1E 0xA23p-4 0X1.921FB54442D18P+1
-</pre>
-
-<p>
-A <em>comment</em> starts with a double hyphen (<code>--</code>)
-anywhere outside a string.
-If the text immediately after <code>--</code> is not an opening long bracket,
-the comment is a <em>short comment</em>,
-which runs until the end of the line.
-Otherwise, it is a <em>long comment</em>,
-which runs until the corresponding closing long bracket.
-Long comments are frequently used to disable code temporarily.
-
-
-
-
-
-<h2>3.2 – <a name="3.2">Variables</a></h2>
-
-<p>
-Variables are places that store values.
-There are three kinds of variables in Lua:
-global variables, local variables, and table fields.
-
-
-<p>
-A single name can denote a global variable or a local variable
-(or a function's formal parameter,
-which is a particular kind of local variable):
-
-<pre>
- var ::= Name
-</pre><p>
-Name denotes identifiers, as defined in <a href="#3.1">§3.1</a>.
-
-
-<p>
-Any variable name is assumed to be global unless explicitly declared
-as a local (see <a href="#3.3.7">§3.3.7</a>).
-Local variables are <em>lexically scoped</em>:
-local variables can be freely accessed by functions
-defined inside their scope (see <a href="#3.5">§3.5</a>).
-
-
-<p>
-Before the first assignment to a variable, its value is <b>nil</b>.
-
-
-<p>
-Square brackets are used to index a table:
-
-<pre>
- var ::= prefixexp ‘<b>[</b>’ exp ‘<b>]</b>’
-</pre><p>
-The meaning of accesses to table fields can be changed via metatables.
-An access to an indexed variable <code>t[i]</code> is equivalent to
-a call <code>gettable_event(t,i)</code>.
-(See <a href="#2.4">§2.4</a> for a complete description of the
-<code>gettable_event</code> function.
-This function is not defined or callable in Lua.
-We use it here only for explanatory purposes.)
-
-
-<p>
-The syntax <code>var.Name</code> is just syntactic sugar for
-<code>var["Name"]</code>:
-
-<pre>
- var ::= prefixexp ‘<b>.</b>’ Name
-</pre>
-
-<p>
-An access to a global variable <code>x</code>
-is equivalent to <code>_ENV.x</code>.
-Due to the way that chunks are compiled,
-<code>_ENV</code> is never a global name (see <a href="#2.2">§2.2</a>).
-
-
-
-
-
-<h2>3.3 – <a name="3.3">Statements</a></h2>
-
-<p>
-Lua supports an almost conventional set of statements,
-similar to those in Pascal or C.
-This set includes
-assignments, control structures, function calls,
-and variable declarations.
-
-
-
-<h3>3.3.1 – <a name="3.3.1">Blocks</a></h3>
-
-<p>
-A block is a list of statements,
-which are executed sequentially:
-
-<pre>
- block ::= {stat}
-</pre><p>
-Lua has <em>empty statements</em>
-that allow you to separate statements with semicolons,
-start a block with a semicolon
-or write two semicolons in sequence:
-
-<pre>
- stat ::= ‘<b>;</b>’
-</pre>
-
-<p>
-Function calls and assignments
-can start with an open parenthesis.
-This possibility leads to an ambiguity in Lua's grammar.
-Consider the following fragment:
-
-<pre>
- a = b + c
- (print or io.write)('done')
-</pre><p>
-The grammar could see it in two ways:
-
-<pre>
- a = b + c(print or io.write)('done')
-
- a = b + c; (print or io.write)('done')
-</pre><p>
-The current parser always sees such constructions
-in the first way,
-interpreting the open parenthesis
-as the start of the arguments to a call.
-To avoid this ambiguity,
-it is a good practice to always precede with a semicolon
-statements that start with a parenthesis:
-
-<pre>
- ;(print or io.write)('done')
-</pre>
-
-<p>
-A block can be explicitly delimited to produce a single statement:
-
-<pre>
- stat ::= <b>do</b> block <b>end</b>
-</pre><p>
-Explicit blocks are useful
-to control the scope of variable declarations.
-Explicit blocks are also sometimes used to
-add a <b>return</b> statement in the middle
-of another block (see <a href="#3.3.4">§3.3.4</a>).
-
-
-
-
-
-<h3>3.3.2 – <a name="3.3.2">Chunks</a></h3>
-
-<p>
-The unit of compilation of Lua is called a <em>chunk</em>.
-Syntactically,
-a chunk is simply a block:
-
-<pre>
- chunk ::= block
-</pre>
-
-<p>
-Lua handles a chunk as the body of an anonymous function
-with a variable number of arguments
-(see <a href="#3.4.10">§3.4.10</a>).
-As such, chunks can define local variables,
-receive arguments, and return values.
-Moreover, such anonymous function is compiled as in the
-scope of an external local variable called <code>_ENV</code> (see <a href="#2.2">§2.2</a>).
-The resulting function always has <code>_ENV</code> as its only upvalue,
-even if it does not use that variable.
-
-
-<p>
-A chunk can be stored in a file or in a string inside the host program.
-To execute a chunk,
-Lua first precompiles the chunk into instructions for a virtual machine,
-and then it executes the compiled code
-with an interpreter for the virtual machine.
-
-
-<p>
-Chunks can also be precompiled into binary form;
-see program <code>luac</code> for details.
-Programs in source and compiled forms are interchangeable;
-Lua automatically detects the file type and acts accordingly.
-
-
-
-
-
-
-<h3>3.3.3 – <a name="3.3.3">Assignment</a></h3>
-
-<p>
-Lua allows multiple assignments.
-Therefore, the syntax for assignment
-defines a list of variables on the left side
-and a list of expressions on the right side.
-The elements in both lists are separated by commas:
-
-<pre>
- stat ::= varlist ‘<b>=</b>’ explist
- varlist ::= var {‘<b>,</b>’ var}
- explist ::= exp {‘<b>,</b>’ exp}
-</pre><p>
-Expressions are discussed in <a href="#3.4">§3.4</a>.
-
-
-<p>
-Before the assignment,
-the list of values is <em>adjusted</em> to the length of
-the list of variables.
-If there are more values than needed,
-the excess values are thrown away.
-If there are fewer values than needed,
-the list is extended with as many <b>nil</b>'s as needed.
-If the list of expressions ends with a function call,
-then all values returned by that call enter the list of values,
-before the adjustment
-(except when the call is enclosed in parentheses; see <a href="#3.4">§3.4</a>).
-
-
-<p>
-The assignment statement first evaluates all its expressions
-and only then are the assignments performed.
-Thus the code
-
-<pre>
- i = 3
- i, a[i] = i+1, 20
-</pre><p>
-sets <code>a[3]</code> to 20, without affecting <code>a[4]</code>
-because the <code>i</code> in <code>a[i]</code> is evaluated (to 3)
-before it is assigned 4.
-Similarly, the line
-
-<pre>
- x, y = y, x
-</pre><p>
-exchanges the values of <code>x</code> and <code>y</code>,
-and
-
-<pre>
- x, y, z = y, z, x
-</pre><p>
-cyclically permutes the values of <code>x</code>, <code>y</code>, and <code>z</code>.
-
-
-<p>
-The meaning of assignments to global variables
-and table fields can be changed via metatables.
-An assignment to an indexed variable <code>t[i] = val</code> is equivalent to
-<code>settable_event(t,i,val)</code>.
-(See <a href="#2.4">§2.4</a> for a complete description of the
-<code>settable_event</code> function.
-This function is not defined or callable in Lua.
-We use it here only for explanatory purposes.)
-
-
-<p>
-An assignment to a global variable <code>x = val</code>
-is equivalent to the assignment
-<code>_ENV.x = val</code> (see <a href="#2.2">§2.2</a>).
-
-
-
-
-
-<h3>3.3.4 – <a name="3.3.4">Control Structures</a></h3><p>
-The control structures
-<b>if</b>, <b>while</b>, and <b>repeat</b> have the usual meaning and
-familiar syntax:
-
-
-
-
-<pre>
- stat ::= <b>while</b> exp <b>do</b> block <b>end</b>
- stat ::= <b>repeat</b> block <b>until</b> exp
- stat ::= <b>if</b> exp <b>then</b> block {<b>elseif</b> exp <b>then</b> block} [<b>else</b> block] <b>end</b>
-</pre><p>
-Lua also has a <b>for</b> statement, in two flavors (see <a href="#3.3.5">§3.3.5</a>).
-
-
-<p>
-The condition expression of a
-control structure can return any value.
-Both <b>false</b> and <b>nil</b> are considered false.
-All values different from <b>nil</b> and <b>false</b> are considered true
-(in particular, the number 0 and the empty string are also true).
-
-
-<p>
-In the <b>repeat</b>–<b>until</b> loop,
-the inner block does not end at the <b>until</b> keyword,
-but only after the condition.
-So, the condition can refer to local variables
-declared inside the loop block.
-
-
-<p>
-The <b>goto</b> statement transfers the program control to a label.
-For syntactical reasons,
-labels in Lua are considered statements too:
-
-
-
-<pre>
- stat ::= <b>goto</b> Name
- stat ::= label
- label ::= ‘<b>::</b>’ Name ‘<b>::</b>’
-</pre>
-
-<p>
-A label is visible in the entire block where it is defined,
-except
-inside nested blocks where a label with the same name is defined and
-inside nested functions.
-A goto may jump to any visible label as long as it does not
-enter into the scope of a local variable.
-
-
-<p>
-Labels and empty statements are called <em>void statements</em>,
-as they perform no actions.
-
-
-<p>
-The <b>break</b> statement terminates the execution of a
-<b>while</b>, <b>repeat</b>, or <b>for</b> loop,
-skipping to the next statement after the loop:
-
-
-<pre>
- stat ::= <b>break</b>
-</pre><p>
-A <b>break</b> ends the innermost enclosing loop.
-
-
-<p>
-The <b>return</b> statement is used to return values
-from a function or a chunk (which is a function in disguise).
-
-Functions can return more than one value,
-so the syntax for the <b>return</b> statement is
-
-<pre>
- stat ::= <b>return</b> [explist] [‘<b>;</b>’]
-</pre>
-
-<p>
-The <b>return</b> statement can only be written
-as the last statement of a block.
-If it is really necessary to <b>return</b> in the middle of a block,
-then an explicit inner block can be used,
-as in the idiom <code>do return end</code>,
-because now <b>return</b> is the last statement in its (inner) block.
-
-
-
-
-
-<h3>3.3.5 – <a name="3.3.5">For Statement</a></h3>
-
-<p>
-
-The <b>for</b> statement has two forms:
-one numeric and one generic.
-
-
-<p>
-The numeric <b>for</b> loop repeats a block of code while a
-control variable runs through an arithmetic progression.
-It has the following syntax:
-
-<pre>
- stat ::= <b>for</b> Name ‘<b>=</b>’ exp ‘<b>,</b>’ exp [‘<b>,</b>’ exp] <b>do</b> block <b>end</b>
-</pre><p>
-The <em>block</em> is repeated for <em>name</em> starting at the value of
-the first <em>exp</em>, until it passes the second <em>exp</em> by steps of the
-third <em>exp</em>.
-More precisely, a <b>for</b> statement like
-
-<pre>
- for v = <em>e1</em>, <em>e2</em>, <em>e3</em> do <em>block</em> end
-</pre><p>
-is equivalent to the code:
-
-<pre>
- do
- local <em>var</em>, <em>limit</em>, <em>step</em> = tonumber(<em>e1</em>), tonumber(<em>e2</em>), tonumber(<em>e3</em>)
- if not (<em>var</em> and <em>limit</em> and <em>step</em>) then error() end
- while (<em>step</em> > 0 and <em>var</em> <= <em>limit</em>) or (<em>step</em> <= 0 and <em>var</em> >= <em>limit</em>) do
- local v = <em>var</em>
- <em>block</em>
- <em>var</em> = <em>var</em> + <em>step</em>
- end
- end
-</pre><p>
-Note the following:
-
-<ul>
-
-<li>
-All three control expressions are evaluated only once,
-before the loop starts.
-They must all result in numbers.
-</li>
-
-<li>
-<code><em>var</em></code>, <code><em>limit</em></code>, and <code><em>step</em></code> are invisible variables.
-The names shown here are for explanatory purposes only.
-</li>
-
-<li>
-If the third expression (the step) is absent,
-then a step of 1 is used.
-</li>
-
-<li>
-You can use <b>break</b> to exit a <b>for</b> loop.
-</li>
-
-<li>
-The loop variable <code>v</code> is local to the loop;
-you cannot use its value after the <b>for</b> ends or is broken.
-If you need this value,
-assign it to another variable before breaking or exiting the loop.
-</li>
-
-</ul>
-
-<p>
-The generic <b>for</b> statement works over functions,
-called <em>iterators</em>.
-On each iteration, the iterator function is called to produce a new value,
-stopping when this new value is <b>nil</b>.
-The generic <b>for</b> loop has the following syntax:
-
-<pre>
- stat ::= <b>for</b> namelist <b>in</b> explist <b>do</b> block <b>end</b>
- namelist ::= Name {‘<b>,</b>’ Name}
-</pre><p>
-A <b>for</b> statement like
-
-<pre>
- for <em>var_1</em>, ···, <em>var_n</em> in <em>explist</em> do <em>block</em> end
-</pre><p>
-is equivalent to the code:
-
-<pre>
- do
- local <em>f</em>, <em>s</em>, <em>var</em> = <em>explist</em>
- while true do
- local <em>var_1</em>, ···, <em>var_n</em> = <em>f</em>(<em>s</em>, <em>var</em>)
- if <em>var_1</em> == nil then break end
- <em>var</em> = <em>var_1</em>
- <em>block</em>
- end
- end
-</pre><p>
-Note the following:
-
-<ul>
-
-<li>
-<code><em>explist</em></code> is evaluated only once.
-Its results are an <em>iterator</em> function,
-a <em>state</em>,
-and an initial value for the first <em>iterator variable</em>.
-</li>
-
-<li>
-<code><em>f</em></code>, <code><em>s</em></code>, and <code><em>var</em></code> are invisible variables.
-The names are here for explanatory purposes only.
-</li>
-
-<li>
-You can use <b>break</b> to exit a <b>for</b> loop.
-</li>
-
-<li>
-The loop variables <code><em>var_i</em></code> are local to the loop;
-you cannot use their values after the <b>for</b> ends.
-If you need these values,
-then assign them to other variables before breaking or exiting the loop.
-</li>
-
-</ul>
-
-
-
-
-<h3>3.3.6 – <a name="3.3.6">Function Calls as Statements</a></h3><p>
-To allow possible side-effects,
-function calls can be executed as statements:
-
-<pre>
- stat ::= functioncall
-</pre><p>
-In this case, all returned values are thrown away.
-Function calls are explained in <a href="#3.4.9">§3.4.9</a>.
-
-
-
-
-
-<h3>3.3.7 – <a name="3.3.7">Local Declarations</a></h3><p>
-Local variables can be declared anywhere inside a block.
-The declaration can include an initial assignment:
-
-<pre>
- stat ::= <b>local</b> namelist [‘<b>=</b>’ explist]
-</pre><p>
-If present, an initial assignment has the same semantics
-of a multiple assignment (see <a href="#3.3.3">§3.3.3</a>).
-Otherwise, all variables are initialized with <b>nil</b>.
-
-
-<p>
-A chunk is also a block (see <a href="#3.3.2">§3.3.2</a>),
-and so local variables can be declared in a chunk outside any explicit block.
-
-
-<p>
-The visibility rules for local variables are explained in <a href="#3.5">§3.5</a>.
-
-
-
-
-
-
-
-<h2>3.4 – <a name="3.4">Expressions</a></h2>
-
-<p>
-The basic expressions in Lua are the following:
-
-<pre>
- exp ::= prefixexp
- exp ::= <b>nil</b> | <b>false</b> | <b>true</b>
- exp ::= Number
- exp ::= String
- exp ::= functiondef
- exp ::= tableconstructor
- exp ::= ‘<b>...</b>’
- exp ::= exp binop exp
- exp ::= unop exp
- prefixexp ::= var | functioncall | ‘<b>(</b>’ exp ‘<b>)</b>’
-</pre>
-
-<p>
-Numbers and literal strings are explained in <a href="#3.1">§3.1</a>;
-variables are explained in <a href="#3.2">§3.2</a>;
-function definitions are explained in <a href="#3.4.10">§3.4.10</a>;
-function calls are explained in <a href="#3.4.9">§3.4.9</a>;
-table constructors are explained in <a href="#3.4.8">§3.4.8</a>.
-Vararg expressions,
-denoted by three dots ('<code>...</code>'), can only be used when
-directly inside a vararg function;
-they are explained in <a href="#3.4.10">§3.4.10</a>.
-
-
-<p>
-Binary operators comprise arithmetic operators (see <a href="#3.4.1">§3.4.1</a>),
-relational operators (see <a href="#3.4.3">§3.4.3</a>), logical operators (see <a href="#3.4.4">§3.4.4</a>),
-and the concatenation operator (see <a href="#3.4.5">§3.4.5</a>).
-Unary operators comprise the unary minus (see <a href="#3.4.1">§3.4.1</a>),
-the unary <b>not</b> (see <a href="#3.4.4">§3.4.4</a>),
-and the unary <em>length operator</em> (see <a href="#3.4.6">§3.4.6</a>).
-
-
-<p>
-Both function calls and vararg expressions can result in multiple values.
-If a function call is used as a statement (see <a href="#3.3.6">§3.3.6</a>),
-then its return list is adjusted to zero elements,
-thus discarding all returned values.
-If an expression is used as the last (or the only) element
-of a list of expressions,
-then no adjustment is made
-(unless the expression is enclosed in parentheses).
-In all other contexts,
-Lua adjusts the result list to one element,
-either discarding all values except the first one
-or adding a single <b>nil</b> if there are no values.
-
-
-<p>
-Here are some examples:
-
-<pre>
- f() -- adjusted to 0 results
- g(f(), x) -- f() is adjusted to 1 result
- g(x, f()) -- g gets x plus all results from f()
- a,b,c = f(), x -- f() is adjusted to 1 result (c gets nil)
- a,b = ... -- a gets the first vararg parameter, b gets
- -- the second (both a and b can get nil if there
- -- is no corresponding vararg parameter)
-
- a,b,c = x, f() -- f() is adjusted to 2 results
- a,b,c = f() -- f() is adjusted to 3 results
- return f() -- returns all results from f()
- return ... -- returns all received vararg parameters
- return x,y,f() -- returns x, y, and all results from f()
- {f()} -- creates a list with all results from f()
- {...} -- creates a list with all vararg parameters
- {f(), nil} -- f() is adjusted to 1 result
-</pre>
-
-<p>
-Any expression enclosed in parentheses always results in only one value.
-Thus,
-<code>(f(x,y,z))</code> is always a single value,
-even if <code>f</code> returns several values.
-(The value of <code>(f(x,y,z))</code> is the first value returned by <code>f</code>
-or <b>nil</b> if <code>f</code> does not return any values.)
-
-
-
-<h3>3.4.1 – <a name="3.4.1">Arithmetic Operators</a></h3><p>
-Lua supports the usual arithmetic operators:
-the binary <code>+</code> (addition),
-<code>-</code> (subtraction), <code>*</code> (multiplication),
-<code>/</code> (division), <code>%</code> (modulo), and <code>^</code> (exponentiation);
-and unary <code>-</code> (mathematical negation).
-If the operands are numbers, or strings that can be converted to
-numbers (see <a href="#3.4.2">§3.4.2</a>),
-then all operations have the usual meaning.
-Exponentiation works for any exponent.
-For instance, <code>x^(-0.5)</code> computes the inverse of the square root of <code>x</code>.
-Modulo is defined as
-
-<pre>
- a % b == a - math.floor(a/b)*b
-</pre><p>
-That is, it is the remainder of a division that rounds
-the quotient towards minus infinity.
-
-
-
-
-
-<h3>3.4.2 – <a name="3.4.2">Coercion</a></h3>
-
-<p>
-Lua provides automatic conversion between
-string and number values at run time.
-Any arithmetic operation applied to a string tries to convert
-this string to a number, following the rules of the Lua lexer.
-(The string may have leading and trailing spaces and a sign.)
-Conversely, whenever a number is used where a string is expected,
-the number is converted to a string, in a reasonable format.
-For complete control over how numbers are converted to strings,
-use the <code>format</code> function from the string library
-(see <a href="#pdf-string.format"><code>string.format</code></a>).
-
-
-
-
-
-<h3>3.4.3 – <a name="3.4.3">Relational Operators</a></h3><p>
-The relational operators in Lua are
-
-<pre>
- == ~= < > <= >=
-</pre><p>
-These operators always result in <b>false</b> or <b>true</b>.
-
-
-<p>
-Equality (<code>==</code>) first compares the type of its operands.
-If the types are different, then the result is <b>false</b>.
-Otherwise, the values of the operands are compared.
-Numbers and strings are compared in the usual way.
-Tables, userdata, and threads
-are compared by reference:
-two objects are considered equal only if they are the same object.
-Every time you create a new object
-(a table, userdata, or thread),
-this new object is different from any previously existing object.
-Closures with the same reference are always equal.
-Closures with any detectable difference
-(different behavior, different definition) are always different.
-
-
-<p>
-You can change the way that Lua compares tables and userdata
-by using the "eq" metamethod (see <a href="#2.4">§2.4</a>).
-
-
-<p>
-The conversion rules of <a href="#3.4.2">§3.4.2</a>
-do not apply to equality comparisons.
-Thus, <code>"0"==0</code> evaluates to <b>false</b>,
-and <code>t[0]</code> and <code>t["0"]</code> denote different
-entries in a table.
-
-
-<p>
-The operator <code>~=</code> is exactly the negation of equality (<code>==</code>).
-
-
-<p>
-The order operators work as follows.
-If both arguments are numbers, then they are compared as such.
-Otherwise, if both arguments are strings,
-then their values are compared according to the current locale.
-Otherwise, Lua tries to call the "lt" or the "le"
-metamethod (see <a href="#2.4">§2.4</a>).
-A comparison <code>a > b</code> is translated to <code>b < a</code>
-and <code>a >= b</code> is translated to <code>b <= a</code>.
-
-
-
-
-
-<h3>3.4.4 – <a name="3.4.4">Logical Operators</a></h3><p>
-The logical operators in Lua are
-<b>and</b>, <b>or</b>, and <b>not</b>.
-Like the control structures (see <a href="#3.3.4">§3.3.4</a>),
-all logical operators consider both <b>false</b> and <b>nil</b> as false
-and anything else as true.
-
-
-<p>
-The negation operator <b>not</b> always returns <b>false</b> or <b>true</b>.
-The conjunction operator <b>and</b> returns its first argument
-if this value is <b>false</b> or <b>nil</b>;
-otherwise, <b>and</b> returns its second argument.
-The disjunction operator <b>or</b> returns its first argument
-if this value is different from <b>nil</b> and <b>false</b>;
-otherwise, <b>or</b> returns its second argument.
-Both <b>and</b> and <b>or</b> use short-cut evaluation;
-that is,
-the second operand is evaluated only if necessary.
-Here are some examples:
-
-<pre>
- 10 or 20 --> 10
- 10 or error() --> 10
- nil or "a" --> "a"
- nil and 10 --> nil
- false and error() --> false
- false and nil --> false
- false or nil --> nil
- 10 and 20 --> 20
-</pre><p>
-(In this manual,
-<code>--></code> indicates the result of the preceding expression.)
-
-
-
-
-
-<h3>3.4.5 – <a name="3.4.5">Concatenation</a></h3><p>
-The string concatenation operator in Lua is
-denoted by two dots ('<code>..</code>').
-If both operands are strings or numbers, then they are converted to
-strings according to the rules mentioned in <a href="#3.4.2">§3.4.2</a>.
-Otherwise, the <code>__concat</code> metamethod is called (see <a href="#2.4">§2.4</a>).
-
-
-
-
-
-<h3>3.4.6 – <a name="3.4.6">The Length Operator</a></h3>
-
-<p>
-The length operator is denoted by the unary prefix operator <code>#</code>.
-The length of a string is its number of bytes
-(that is, the usual meaning of string length when each
-character is one byte).
-
-
-<p>
-A program can modify the behavior of the length operator for
-any value but strings through the <code>__len</code> metamethod (see <a href="#2.4">§2.4</a>).
-
-
-<p>
-Unless a <code>__len</code> metamethod is given,
-the length of a table <code>t</code> is only defined if the
-table is a <em>sequence</em>,
-that is,
-the set of its positive numeric keys is equal to <em>{1..n}</em>
-for some non-negative integer <em>n</em>.
-In that case, <em>n</em> is its length.
-Note that a table like
-
-<pre>
- {10, 20, nil, 40}
-</pre><p>
-is not a sequence, because it has the key <code>4</code>
-but does not have the key <code>3</code>.
-(So, there is no <em>n</em> such that the set <em>{1..n}</em> is equal
-to the set of positive numeric keys of that table.)
-Note, however, that non-numeric keys do not interfere
-with whether a table is a sequence.
-
-
-
-
-
-<h3>3.4.7 – <a name="3.4.7">Precedence</a></h3><p>
-Operator precedence in Lua follows the table below,
-from lower to higher priority:
-
-<pre>
- or
- and
- < > <= >= ~= ==
- ..
- + -
- * / %
- not # - (unary)
- ^
-</pre><p>
-As usual,
-you can use parentheses to change the precedences of an expression.
-The concatenation ('<code>..</code>') and exponentiation ('<code>^</code>')
-operators are right associative.
-All other binary operators are left associative.
-
-
-
-
-
-<h3>3.4.8 – <a name="3.4.8">Table Constructors</a></h3><p>
-Table constructors are expressions that create tables.
-Every time a constructor is evaluated, a new table is created.
-A constructor can be used to create an empty table
-or to create a table and initialize some of its fields.
-The general syntax for constructors is
-
-<pre>
- tableconstructor ::= ‘<b>{</b>’ [fieldlist] ‘<b>}</b>’
- fieldlist ::= field {fieldsep field} [fieldsep]
- field ::= ‘<b>[</b>’ exp ‘<b>]</b>’ ‘<b>=</b>’ exp | Name ‘<b>=</b>’ exp | exp
- fieldsep ::= ‘<b>,</b>’ | ‘<b>;</b>’
-</pre>
-
-<p>
-Each field of the form <code>[exp1] = exp2</code> adds to the new table an entry
-with key <code>exp1</code> and value <code>exp2</code>.
-A field of the form <code>name = exp</code> is equivalent to
-<code>["name"] = exp</code>.
-Finally, fields of the form <code>exp</code> are equivalent to
-<code>[i] = exp</code>, where <code>i</code> are consecutive numerical integers,
-starting with 1.
-Fields in the other formats do not affect this counting.
-For example,
-
-<pre>
- a = { [f(1)] = g; "x", "y"; x = 1, f(x), [30] = 23; 45 }
-</pre><p>
-is equivalent to
-
-<pre>
- do
- local t = {}
- t[f(1)] = g
- t[1] = "x" -- 1st exp
- t[2] = "y" -- 2nd exp
- t.x = 1 -- t["x"] = 1
- t[3] = f(x) -- 3rd exp
- t[30] = 23
- t[4] = 45 -- 4th exp
- a = t
- end
-</pre>
-
-<p>
-If the last field in the list has the form <code>exp</code>
-and the expression is a function call or a vararg expression,
-then all values returned by this expression enter the list consecutively
-(see <a href="#3.4.9">§3.4.9</a>).
-
-
-<p>
-The field list can have an optional trailing separator,
-as a convenience for machine-generated code.
-
-
-
-
-
-<h3>3.4.9 – <a name="3.4.9">Function Calls</a></h3><p>
-A function call in Lua has the following syntax:
-
-<pre>
- functioncall ::= prefixexp args
-</pre><p>
-In a function call,
-first prefixexp and args are evaluated.
-If the value of prefixexp has type <em>function</em>,
-then this function is called
-with the given arguments.
-Otherwise, the prefixexp "call" metamethod is called,
-having as first parameter the value of prefixexp,
-followed by the original call arguments
-(see <a href="#2.4">§2.4</a>).
-
-
-<p>
-The form
-
-<pre>
- functioncall ::= prefixexp ‘<b>:</b>’ Name args
-</pre><p>
-can be used to call "methods".
-A call <code>v:name(<em>args</em>)</code>
-is syntactic sugar for <code>v.name(v,<em>args</em>)</code>,
-except that <code>v</code> is evaluated only once.
-
-
-<p>
-Arguments have the following syntax:
-
-<pre>
- args ::= ‘<b>(</b>’ [explist] ‘<b>)</b>’
- args ::= tableconstructor
- args ::= String
-</pre><p>
-All argument expressions are evaluated before the call.
-A call of the form <code>f{<em>fields</em>}</code> is
-syntactic sugar for <code>f({<em>fields</em>})</code>;
-that is, the argument list is a single new table.
-A call of the form <code>f'<em>string</em>'</code>
-(or <code>f"<em>string</em>"</code> or <code>f[[<em>string</em>]]</code>)
-is syntactic sugar for <code>f('<em>string</em>')</code>;
-that is, the argument list is a single literal string.
-
-
-<p>
-A call of the form <code>return <em>functioncall</em></code> is called
-a <em>tail call</em>.
-Lua implements <em>proper tail calls</em>
-(or <em>proper tail recursion</em>):
-in a tail call,
-the called function reuses the stack entry of the calling function.
-Therefore, there is no limit on the number of nested tail calls that
-a program can execute.
-However, a tail call erases any debug information about the
-calling function.
-Note that a tail call only happens with a particular syntax,
-where the <b>return</b> has one single function call as argument;
-this syntax makes the calling function return exactly
-the returns of the called function.
-So, none of the following examples are tail calls:
-
-<pre>
- return (f(x)) -- results adjusted to 1
- return 2 * f(x)
- return x, f(x) -- additional results
- f(x); return -- results discarded
- return x or f(x) -- results adjusted to 1
-</pre>
-
-
-
-
-<h3>3.4.10 – <a name="3.4.10">Function Definitions</a></h3>
-
-<p>
-The syntax for function definition is
-
-<pre>
- functiondef ::= <b>function</b> funcbody
- funcbody ::= ‘<b>(</b>’ [parlist] ‘<b>)</b>’ block <b>end</b>
-</pre>
-
-<p>
-The following syntactic sugar simplifies function definitions:
-
-<pre>
- stat ::= <b>function</b> funcname funcbody
- stat ::= <b>local</b> <b>function</b> Name funcbody
- funcname ::= Name {‘<b>.</b>’ Name} [‘<b>:</b>’ Name]
-</pre><p>
-The statement
-
-<pre>
- function f () <em>body</em> end
-</pre><p>
-translates to
-
-<pre>
- f = function () <em>body</em> end
-</pre><p>
-The statement
-
-<pre>
- function t.a.b.c.f () <em>body</em> end
-</pre><p>
-translates to
-
-<pre>
- t.a.b.c.f = function () <em>body</em> end
-</pre><p>
-The statement
-
-<pre>
- local function f () <em>body</em> end
-</pre><p>
-translates to
-
-<pre>
- local f; f = function () <em>body</em> end
-</pre><p>
-not to
-
-<pre>
- local f = function () <em>body</em> end
-</pre><p>
-(This only makes a difference when the body of the function
-contains references to <code>f</code>.)
-
-
-<p>
-A function definition is an executable expression,
-whose value has type <em>function</em>.
-When Lua precompiles a chunk,
-all its function bodies are precompiled too.
-Then, whenever Lua executes the function definition,
-the function is <em>instantiated</em> (or <em>closed</em>).
-This function instance (or <em>closure</em>)
-is the final value of the expression.
-
-
-<p>
-Parameters act as local variables that are
-initialized with the argument values:
-
-<pre>
- parlist ::= namelist [‘<b>,</b>’ ‘<b>...</b>’] | ‘<b>...</b>’
-</pre><p>
-When a function is called,
-the list of arguments is adjusted to
-the length of the list of parameters,
-unless the function is a <em>vararg function</em>,
-which is indicated by three dots ('<code>...</code>')
-at the end of its parameter list.
-A vararg function does not adjust its argument list;
-instead, it collects all extra arguments and supplies them
-to the function through a <em>vararg expression</em>,
-which is also written as three dots.
-The value of this expression is a list of all actual extra arguments,
-similar to a function with multiple results.
-If a vararg expression is used inside another expression
-or in the middle of a list of expressions,
-then its return list is adjusted to one element.
-If the expression is used as the last element of a list of expressions,
-then no adjustment is made
-(unless that last expression is enclosed in parentheses).
-
-
-<p>
-As an example, consider the following definitions:
-
-<pre>
- function f(a, b) end
- function g(a, b, ...) end
- function r() return 1,2,3 end
-</pre><p>
-Then, we have the following mapping from arguments to parameters and
-to the vararg expression:
-
-<pre>
- CALL PARAMETERS
-
- f(3) a=3, b=nil
- f(3, 4) a=3, b=4
- f(3, 4, 5) a=3, b=4
- f(r(), 10) a=1, b=10
- f(r()) a=1, b=2
-
- g(3) a=3, b=nil, ... --> (nothing)
- g(3, 4) a=3, b=4, ... --> (nothing)
- g(3, 4, 5, 8) a=3, b=4, ... --> 5 8
- g(5, r()) a=5, b=1, ... --> 2 3
-</pre>
-
-<p>
-Results are returned using the <b>return</b> statement (see <a href="#3.3.4">§3.3.4</a>).
-If control reaches the end of a function
-without encountering a <b>return</b> statement,
-then the function returns with no results.
-
-
-<p>
-
-There is a system-dependent limit on the number of values
-that a function may return.
-This limit is guaranteed to be larger than 1000.
-
-
-<p>
-The <em>colon</em> syntax
-is used for defining <em>methods</em>,
-that is, functions that have an implicit extra parameter <code>self</code>.
-Thus, the statement
-
-<pre>
- function t.a.b.c:f (<em>params</em>) <em>body</em> end
-</pre><p>
-is syntactic sugar for
-
-<pre>
- t.a.b.c.f = function (self, <em>params</em>) <em>body</em> end
-</pre>
-
-
-
-
-
-
-<h2>3.5 – <a name="3.5">Visibility Rules</a></h2>
-
-<p>
-
-Lua is a lexically scoped language.
-The scope of a local variable begins at the first statement after
-its declaration and lasts until the last non-void statement
-of the innermost block that includes the declaration.
-Consider the following example:
-
-<pre>
- x = 10 -- global variable
- do -- new block
- local x = x -- new 'x', with value 10
- print(x) --> 10
- x = x+1
- do -- another block
- local x = x+1 -- another 'x'
- print(x) --> 12
- end
- print(x) --> 11
- end
- print(x) --> 10 (the global one)
-</pre>
-
-<p>
-Notice that, in a declaration like <code>local x = x</code>,
-the new <code>x</code> being declared is not in scope yet,
-and so the second <code>x</code> refers to the outside variable.
-
-
-<p>
-Because of the lexical scoping rules,
-local variables can be freely accessed by functions
-defined inside their scope.
-A local variable used by an inner function is called
-an <em>upvalue</em>, or <em>external local variable</em>,
-inside the inner function.
-
-
-<p>
-Notice that each execution of a <b>local</b> statement
-defines new local variables.
-Consider the following example:
-
-<pre>
- a = {}
- local x = 20
- for i=1,10 do
- local y = 0
- a[i] = function () y=y+1; return x+y end
- end
-</pre><p>
-The loop creates ten closures
-(that is, ten instances of the anonymous function).
-Each of these closures uses a different <code>y</code> variable,
-while all of them share the same <code>x</code>.
-
-
-
-
-
-<h1>4 – <a name="4">The Application Program Interface</a></h1>
-
-<p>
-
-This section describes the C API for Lua, that is,
-the set of C functions available to the host program to communicate
-with Lua.
-All API functions and related types and constants
-are declared in the header file <a name="pdf-lua.h"><code>lua.h</code></a>.
-
-
-<p>
-Even when we use the term "function",
-any facility in the API may be provided as a macro instead.
-Except where stated otherwise,
-all such macros use each of their arguments exactly once
-(except for the first argument, which is always a Lua state),
-and so do not generate any hidden side-effects.
-
-
-<p>
-As in most C libraries,
-the Lua API functions do not check their arguments for validity or consistency.
-However, you can change this behavior by compiling Lua
-with the macro <a name="pdf-LUA_USE_APICHECK"><code>LUA_USE_APICHECK</code></a> defined.
-
-
-
-<h2>4.1 – <a name="4.1">The Stack</a></h2>
-
-<p>
-Lua uses a <em>virtual stack</em> to pass values to and from C.
-Each element in this stack represents a Lua value
-(<b>nil</b>, number, string, etc.).
-
-
-<p>
-Whenever Lua calls C, the called function gets a new stack,
-which is independent of previous stacks and of stacks of
-C functions that are still active.
-This stack initially contains any arguments to the C function
-and it is where the C function pushes its results
-to be returned to the caller (see <a href="#lua_CFunction"><code>lua_CFunction</code></a>).
-
-
-<p>
-For convenience,
-most query operations in the API do not follow a strict stack discipline.
-Instead, they can refer to any element in the stack
-by using an <em>index</em>:
-A positive index represents an absolute stack position
-(starting at 1);
-a negative index represents an offset relative to the top of the stack.
-More specifically, if the stack has <em>n</em> elements,
-then index 1 represents the first element
-(that is, the element that was pushed onto the stack first)
-and
-index <em>n</em> represents the last element;
-index -1 also represents the last element
-(that is, the element at the top)
-and index <em>-n</em> represents the first element.
-
-
-
-
-
-<h2>4.2 – <a name="4.2">Stack Size</a></h2>
-
-<p>
-When you interact with the Lua API,
-you are responsible for ensuring consistency.
-In particular,
-<em>you are responsible for controlling stack overflow</em>.
-You can use the function <a href="#lua_checkstack"><code>lua_checkstack</code></a>
-to ensure that the stack has extra slots when pushing new elements.
-
-
-<p>
-Whenever Lua calls C,
-it ensures that the stack has at least <a name="pdf-LUA_MINSTACK"><code>LUA_MINSTACK</code></a> extra slots.
-<code>LUA_MINSTACK</code> is defined as 20,
-so that usually you do not have to worry about stack space
-unless your code has loops pushing elements onto the stack.
-
-
-<p>
-When you call a Lua function
-without a fixed number of results (see <a href="#lua_call"><code>lua_call</code></a>),
-Lua ensures that the stack has enough size for all results,
-but it does not ensure any extra space.
-So, before pushing anything in the stack after such a call
-you should use <a href="#lua_checkstack"><code>lua_checkstack</code></a>.
-
-
-
-
-
-<h2>4.3 – <a name="4.3">Valid and Acceptable Indices</a></h2>
-
-<p>
-Any function in the API that receives stack indices
-works only with <em>valid indices</em> or <em>acceptable indices</em>.
-
-
-<p>
-A <em>valid index</em> is an index that refers to a
-real position within the stack, that is,
-its position lies between 1 and the stack top
-(<code>1 ≤ abs(index) ≤ top</code>).
-
-Usually, functions that can modify the value at an index
-require valid indices.
-
-
-<p>
-Unless otherwise noted,
-any function that accepts valid indices also accepts <em>pseudo-indices</em>,
-which represent some Lua values that are accessible to C code
-but which are not in the stack.
-Pseudo-indices are used to access the registry
-and the upvalues of a C function (see <a href="#4.4">§4.4</a>).
-
-
-<p>
-Functions that do not need a specific stack position,
-but only a value in the stack (e.g., query functions),
-can be called with acceptable indices.
-An <em>acceptable index</em> can be any valid index,
-including the pseudo-indices,
-but it also can be any positive index after the stack top
-within the space allocated for the stack,
-that is, indices up to the stack size.
-(Note that 0 is never an acceptable index.)
-Except when noted otherwise,
-functions in the API work with acceptable indices.
-
-
-<p>
-Acceptable indices serve to avoid extra tests
-against the stack top when querying the stack.
-For instance, a C function can query its third argument
-without the need to first check whether there is a third argument,
-that is, without the need to check whether 3 is a valid index.
-
-
-<p>
-For functions that can be called with acceptable indices,
-any non-valid index is treated as if it
-contains a value of a virtual type <a name="pdf-LUA_TNONE"><code>LUA_TNONE</code></a>,
-which behaves like a nil value.
-
-
-
-
-
-<h2>4.4 – <a name="4.4">C Closures</a></h2>
-
-<p>
-When a C function is created,
-it is possible to associate some values with it,
-thus creating a <em>C closure</em>
-(see <a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a>);
-these values are called <em>upvalues</em> and are
-accessible to the function whenever it is called.
-
-
-<p>
-Whenever a C function is called,
-its upvalues are located at specific pseudo-indices.
-These pseudo-indices are produced by the macro
-<a href="#lua_upvalueindex"><code>lua_upvalueindex</code></a>.
-The first value associated with a function is at position
-<code>lua_upvalueindex(1)</code>, and so on.
-Any access to <code>lua_upvalueindex(<em>n</em>)</code>,
-where <em>n</em> is greater than the number of upvalues of the
-current function (but not greater than 256),
-produces an acceptable but invalid index.
-
-
-
-
-
-<h2>4.5 – <a name="4.5">Registry</a></h2>
-
-<p>
-Lua provides a <em>registry</em>,
-a predefined table that can be used by any C code to
-store whatever Lua values it needs to store.
-The registry table is always located at pseudo-index
-<a name="pdf-LUA_REGISTRYINDEX"><code>LUA_REGISTRYINDEX</code></a>,
-which is a valid index.
-Any C library can store data into this table,
-but it should take care to choose keys
-that are different from those used
-by other libraries, to avoid collisions.
-Typically, you should use as key a string containing your library name,
-or a light userdata with the address of a C object in your code,
-or any Lua object created by your code.
-As with global names,
-string keys starting with an underscore followed by
-uppercase letters are reserved for Lua.
-
-
-<p>
-The integer keys in the registry are used by the reference mechanism,
-implemented by the auxiliary library,
-and by some predefined values.
-Therefore, integer keys should not be used for other purposes.
-
-
-<p>
-When you create a new Lua state,
-its registry comes with some predefined values.
-These predefined values are indexed with integer keys
-defined as constants in <code>lua.h</code>.
-The following constants are defined:
-
-<ul>
-<li><b><a name="pdf-LUA_RIDX_MAINTHREAD"><code>LUA_RIDX_MAINTHREAD</code></a>: </b> At this index the registry has
-the main thread of the state.
-(The main thread is the one created together with the state.)
-</li>
-
-<li><b><a name="pdf-LUA_RIDX_GLOBALS"><code>LUA_RIDX_GLOBALS</code></a>: </b> At this index the registry has
-the global environment.
-</li>
-</ul>
-
-
-
-
-<h2>4.6 – <a name="4.6">Error Handling in C</a></h2>
-
-<p>
-Internally, Lua uses the C <code>longjmp</code> facility to handle errors.
-(You can also choose to use exceptions if you compile Lua as C++;
-search for <code>LUAI_THROW</code> in the source code.)
-When Lua faces any error
-(such as a memory allocation error, type errors, syntax errors,
-and runtime errors)
-it <em>raises</em> an error;
-that is, it does a long jump.
-A <em>protected environment</em> uses <code>setjmp</code>
-to set a recovery point;
-any error jumps to the most recent active recovery point.
-
-
-<p>
-If an error happens outside any protected environment,
-Lua calls a <em>panic function</em> (see <a href="#lua_atpanic"><code>lua_atpanic</code></a>)
-and then calls <code>abort</code>,
-thus exiting the host application.
-Your panic function can avoid this exit by
-never returning
-(e.g., doing a long jump to your own recovery point outside Lua).
-
-
-<p>
-The panic function runs as if it were a message handler (see <a href="#2.3">§2.3</a>);
-in particular, the error message is at the top of the stack.
-However, there is no guarantees about stack space.
-To push anything on the stack,
-the panic function should first check the available space (see <a href="#4.2">§4.2</a>).
-
-
-<p>
-Most functions in the API can throw an error,
-for instance due to a memory allocation error.
-The documentation for each function indicates whether
-it can throw errors.
-
-
-<p>
-Inside a C function you can throw an error by calling <a href="#lua_error"><code>lua_error</code></a>.
-
-
-
-
-
-<h2>4.7 – <a name="4.7">Handling Yields in C</a></h2>
-
-<p>
-Internally, Lua uses the C <code>longjmp</code> facility to yield a coroutine.
-Therefore, if a function <code>foo</code> calls an API function
-and this API function yields
-(directly or indirectly by calling another function that yields),
-Lua cannot return to <code>foo</code> any more,
-because the <code>longjmp</code> removes its frame from the C stack.
-
-
-<p>
-To avoid this kind of problem,
-Lua raises an error whenever it tries to yield across an API call,
-except for three functions:
-<a href="#lua_yieldk"><code>lua_yieldk</code></a>, <a href="#lua_callk"><code>lua_callk</code></a>, and <a href="#lua_pcallk"><code>lua_pcallk</code></a>.
-All those functions receive a <em>continuation function</em>
-(as a parameter called <code>k</code>) to continue execution after a yield.
-
-
-<p>
-We need to set some terminology to explain continuations.
-We have a C function called from Lua which we will call
-the <em>original function</em>.
-This original function then calls one of those three functions in the C API,
-which we will call the <em>callee function</em>,
-that then yields the current thread.
-(This can happen when the callee function is <a href="#lua_yieldk"><code>lua_yieldk</code></a>,
-or when the callee function is either <a href="#lua_callk"><code>lua_callk</code></a> or <a href="#lua_pcallk"><code>lua_pcallk</code></a>
-and the function called by them yields.)
-
-
-<p>
-Suppose the running thread yields while executing the callee function.
-After the thread resumes,
-it eventually will finish running the callee function.
-However,
-the callee function cannot return to the original function,
-because its frame in the C stack was destroyed by the yield.
-Instead, Lua calls a <em>continuation function</em>,
-which was given as an argument to the callee function.
-As the name implies,
-the continuation function should continue the task
-of the original function.
-
-
-<p>
-Lua treats the continuation function as if it were the original function.
-The continuation function receives the same Lua stack
-from the original function,
-in the same state it would be if the callee function had returned.
-(For instance,
-after a <a href="#lua_callk"><code>lua_callk</code></a> the function and its arguments are
-removed from the stack and replaced by the results from the call.)
-It also has the same upvalues.
-Whatever it returns is handled by Lua as if it were the return
-of the original function.
-
-
-<p>
-The only difference in the Lua state between the original function
-and its continuation is the result of a call to <a href="#lua_getctx"><code>lua_getctx</code></a>.
-
-
-
-
-
-<h2>4.8 – <a name="4.8">Functions and Types</a></h2>
-
-<p>
-Here we list all functions and types from the C API in
-alphabetical order.
-Each function has an indicator like this:
-<span class="apii">[-o, +p, <em>x</em>]</span>
-
-
-<p>
-The first field, <code>o</code>,
-is how many elements the function pops from the stack.
-The second field, <code>p</code>,
-is how many elements the function pushes onto the stack.
-(Any function always pushes its results after popping its arguments.)
-A field in the form <code>x|y</code> means the function can push (or pop)
-<code>x</code> or <code>y</code> elements,
-depending on the situation;
-an interrogation mark '<code>?</code>' means that
-we cannot know how many elements the function pops/pushes
-by looking only at its arguments
-(e.g., they may depend on what is on the stack).
-The third field, <code>x</code>,
-tells whether the function may throw errors:
-'<code>-</code>' means the function never throws any error;
-'<code>e</code>' means the function may throw errors;
-'<code>v</code>' means the function may throw an error on purpose.
-
-
-
-<hr><h3><a name="lua_absindex"><code>lua_absindex</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_absindex (lua_State *L, int idx);</pre>
-
-<p>
-Converts the acceptable index <code>idx</code> into an absolute index
-(that is, one that does not depend on the stack top).
-
-
-
-
-
-<hr><h3><a name="lua_Alloc"><code>lua_Alloc</code></a></h3>
-<pre>typedef void * (*lua_Alloc) (void *ud,
- void *ptr,
- size_t osize,
- size_t nsize);</pre>
-
-<p>
-The type of the memory-allocation function used by Lua states.
-The allocator function must provide a
-functionality similar to <code>realloc</code>,
-but not exactly the same.
-Its arguments are
-<code>ud</code>, an opaque pointer passed to <a href="#lua_newstate"><code>lua_newstate</code></a>;
-<code>ptr</code>, a pointer to the block being allocated/reallocated/freed;
-<code>osize</code>, the original size of the block or some code about what
-is being allocated;
-<code>nsize</code>, the new size of the block.
-
-
-<p>
-When <code>ptr</code> is not <code>NULL</code>,
-<code>osize</code> is the size of the block pointed by <code>ptr</code>,
-that is, the size given when it was allocated or reallocated.
-
-
-<p>
-When <code>ptr</code> is <code>NULL</code>,
-<code>osize</code> encodes the kind of object that Lua is allocating.
-<code>osize</code> is any of
-<a href="#pdf-LUA_TSTRING"><code>LUA_TSTRING</code></a>, <a href="#pdf-LUA_TTABLE"><code>LUA_TTABLE</code></a>, <a href="#pdf-LUA_TFUNCTION"><code>LUA_TFUNCTION</code></a>,
-<a href="#pdf-LUA_TUSERDATA"><code>LUA_TUSERDATA</code></a>, or <a href="#pdf-LUA_TTHREAD"><code>LUA_TTHREAD</code></a> when (and only when)
-Lua is creating a new object of that type.
-When <code>osize</code> is some other value,
-Lua is allocating memory for something else.
-
-
-<p>
-Lua assumes the following behavior from the allocator function:
-
-
-<p>
-When <code>nsize</code> is zero,
-the allocator should behave like <code>free</code>
-and return <code>NULL</code>.
-
-
-<p>
-When <code>nsize</code> is not zero,
-the allocator should behave like <code>realloc</code>.
-The allocator returns <code>NULL</code>
-if and only if it cannot fulfill the request.
-Lua assumes that the allocator never fails when
-<code>osize >= nsize</code>.
-
-
-<p>
-Here is a simple implementation for the allocator function.
-It is used in the auxiliary library by <a href="#luaL_newstate"><code>luaL_newstate</code></a>.
-
-<pre>
- static void *l_alloc (void *ud, void *ptr, size_t osize,
- size_t nsize) {
- (void)ud; (void)osize; /* not used */
- if (nsize == 0) {
- free(ptr);
- return NULL;
- }
- else
- return realloc(ptr, nsize);
- }
-</pre><p>
-Note that Standard C ensures
-that <code>free(NULL)</code> has no effect and that
-<code>realloc(NULL, size)</code> is equivalent to <code>malloc(size)</code>.
-This code assumes that <code>realloc</code> does not fail when shrinking a block.
-(Although Standard C does not ensure this behavior,
-it seems to be a safe assumption.)
-
-
-
-
-
-<hr><h3><a name="lua_arith"><code>lua_arith</code></a></h3><p>
-<span class="apii">[-(2|1), +1, <em>e</em>]</span>
-<pre>void lua_arith (lua_State *L, int op);</pre>
-
-<p>
-Performs an arithmetic operation over the two values
-(or one, in the case of negation)
-at the top of the stack,
-with the value at the top being the second operand,
-pops these values, and pushes the result of the operation.
-The function follows the semantics of the corresponding Lua operator
-(that is, it may call metamethods).
-
-
-<p>
-The value of <code>op</code> must be one of the following constants:
-
-<ul>
-
-<li><b><a name="pdf-LUA_OPADD"><code>LUA_OPADD</code></a>: </b> performs addition (<code>+</code>)</li>
-<li><b><a name="pdf-LUA_OPSUB"><code>LUA_OPSUB</code></a>: </b> performs subtraction (<code>-</code>)</li>
-<li><b><a name="pdf-LUA_OPMUL"><code>LUA_OPMUL</code></a>: </b> performs multiplication (<code>*</code>)</li>
-<li><b><a name="pdf-LUA_OPDIV"><code>LUA_OPDIV</code></a>: </b> performs division (<code>/</code>)</li>
-<li><b><a name="pdf-LUA_OPMOD"><code>LUA_OPMOD</code></a>: </b> performs modulo (<code>%</code>)</li>
-<li><b><a name="pdf-LUA_OPPOW"><code>LUA_OPPOW</code></a>: </b> performs exponentiation (<code>^</code>)</li>
-<li><b><a name="pdf-LUA_OPUNM"><code>LUA_OPUNM</code></a>: </b> performs mathematical negation (unary <code>-</code>)</li>
-
-</ul>
-
-
-
-
-<hr><h3><a name="lua_atpanic"><code>lua_atpanic</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf);</pre>
-
-<p>
-Sets a new panic function and returns the old one (see <a href="#4.6">§4.6</a>).
-
-
-
-
-
-<hr><h3><a name="lua_call"><code>lua_call</code></a></h3><p>
-<span class="apii">[-(nargs+1), +nresults, <em>e</em>]</span>
-<pre>void lua_call (lua_State *L, int nargs, int nresults);</pre>
-
-<p>
-Calls a function.
-
-
-<p>
-To call a function you must use the following protocol:
-first, the function to be called is pushed onto the stack;
-then, the arguments to the function are pushed
-in direct order;
-that is, the first argument is pushed first.
-Finally you call <a href="#lua_call"><code>lua_call</code></a>;
-<code>nargs</code> is the number of arguments that you pushed onto the stack.
-All arguments and the function value are popped from the stack
-when the function is called.
-The function results are pushed onto the stack when the function returns.
-The number of results is adjusted to <code>nresults</code>,
-unless <code>nresults</code> is <a name="pdf-LUA_MULTRET"><code>LUA_MULTRET</code></a>.
-In this case, all results from the function are pushed.
-Lua takes care that the returned values fit into the stack space.
-The function results are pushed onto the stack in direct order
-(the first result is pushed first),
-so that after the call the last result is on the top of the stack.
-
-
-<p>
-Any error inside the called function is propagated upwards
-(with a <code>longjmp</code>).
-
-
-<p>
-The following example shows how the host program can do the
-equivalent to this Lua code:
-
-<pre>
- a = f("how", t.x, 14)
-</pre><p>
-Here it is in C:
-
-<pre>
- lua_getglobal(L, "f"); /* function to be called */
- lua_pushstring(L, "how"); /* 1st argument */
- lua_getglobal(L, "t"); /* table to be indexed */
- lua_getfield(L, -1, "x"); /* push result of t.x (2nd arg) */
- lua_remove(L, -2); /* remove 't' from the stack */
- lua_pushinteger(L, 14); /* 3rd argument */
- lua_call(L, 3, 1); /* call 'f' with 3 arguments and 1 result */
- lua_setglobal(L, "a"); /* set global 'a' */
-</pre><p>
-Note that the code above is "balanced":
-at its end, the stack is back to its original configuration.
-This is considered good programming practice.
-
-
-
-
-
-<hr><h3><a name="lua_callk"><code>lua_callk</code></a></h3><p>
-<span class="apii">[-(nargs + 1), +nresults, <em>e</em>]</span>
-<pre>void lua_callk (lua_State *L, int nargs, int nresults, int ctx,
- lua_CFunction k);</pre>
-
-<p>
-This function behaves exactly like <a href="#lua_call"><code>lua_call</code></a>,
-but allows the called function to yield (see <a href="#4.7">§4.7</a>).
-
-
-
-
-
-<hr><h3><a name="lua_CFunction"><code>lua_CFunction</code></a></h3>
-<pre>typedef int (*lua_CFunction) (lua_State *L);</pre>
-
-<p>
-Type for C functions.
-
-
-<p>
-In order to communicate properly with Lua,
-a C function must use the following protocol,
-which defines the way parameters and results are passed:
-a C function receives its arguments from Lua in its stack
-in direct order (the first argument is pushed first).
-So, when the function starts,
-<code>lua_gettop(L)</code> returns the number of arguments received by the function.
-The first argument (if any) is at index 1
-and its last argument is at index <code>lua_gettop(L)</code>.
-To return values to Lua, a C function just pushes them onto the stack,
-in direct order (the first result is pushed first),
-and returns the number of results.
-Any other value in the stack below the results will be properly
-discarded by Lua.
-Like a Lua function, a C function called by Lua can also return
-many results.
-
-
-<p>
-As an example, the following function receives a variable number
-of numerical arguments and returns their average and sum:
-
-<pre>
- static int foo (lua_State *L) {
- int n = lua_gettop(L); /* number of arguments */
- lua_Number sum = 0;
- int i;
- for (i = 1; i <= n; i++) {
- if (!lua_isnumber(L, i)) {
- lua_pushstring(L, "incorrect argument");
- lua_error(L);
- }
- sum += lua_tonumber(L, i);
- }
- lua_pushnumber(L, sum/n); /* first result */
- lua_pushnumber(L, sum); /* second result */
- return 2; /* number of results */
- }
-</pre>
-
-
-
-
-<hr><h3><a name="lua_checkstack"><code>lua_checkstack</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_checkstack (lua_State *L, int extra);</pre>
-
-<p>
-Ensures that there are at least <code>extra</code> free stack slots in the stack.
-It returns false if it cannot fulfill the request,
-because it would cause the stack to be larger than a fixed maximum size
-(typically at least a few thousand elements) or
-because it cannot allocate memory for the new stack size.
-This function never shrinks the stack;
-if the stack is already larger than the new size,
-it is left unchanged.
-
-
-
-
-
-<hr><h3><a name="lua_close"><code>lua_close</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void lua_close (lua_State *L);</pre>
-
-<p>
-Destroys all objects in the given Lua state
-(calling the corresponding garbage-collection metamethods, if any)
-and frees all dynamic memory used by this state.
-On several platforms, you may not need to call this function,
-because all resources are naturally released when the host program ends.
-On the other hand, long-running programs that create multiple states,
-such as daemons or web servers,
-might need to close states as soon as they are not needed.
-
-
-
-
-
-<hr><h3><a name="lua_compare"><code>lua_compare</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>int lua_compare (lua_State *L, int index1, int index2, int op);</pre>
-
-<p>
-Compares two Lua values.
-Returns 1 if the value at index <code>index1</code> satisfies <code>op</code>
-when compared with the value at index <code>index2</code>,
-following the semantics of the corresponding Lua operator
-(that is, it may call metamethods).
-Otherwise returns 0.
-Also returns 0 if any of the indices is non valid.
-
-
-<p>
-The value of <code>op</code> must be one of the following constants:
-
-<ul>
-
-<li><b><a name="pdf-LUA_OPEQ"><code>LUA_OPEQ</code></a>: </b> compares for equality (<code>==</code>)</li>
-<li><b><a name="pdf-LUA_OPLT"><code>LUA_OPLT</code></a>: </b> compares for less than (<code><</code>)</li>
-<li><b><a name="pdf-LUA_OPLE"><code>LUA_OPLE</code></a>: </b> compares for less or equal (<code><=</code>)</li>
-
-</ul>
-
-
-
-
-<hr><h3><a name="lua_concat"><code>lua_concat</code></a></h3><p>
-<span class="apii">[-n, +1, <em>e</em>]</span>
-<pre>void lua_concat (lua_State *L, int n);</pre>
-
-<p>
-Concatenates the <code>n</code> values at the top of the stack,
-pops them, and leaves the result at the top.
-If <code>n</code> is 1, the result is the single value on the stack
-(that is, the function does nothing);
-if <code>n</code> is 0, the result is the empty string.
-Concatenation is performed following the usual semantics of Lua
-(see <a href="#3.4.5">§3.4.5</a>).
-
-
-
-
-
-<hr><h3><a name="lua_copy"><code>lua_copy</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void lua_copy (lua_State *L, int fromidx, int toidx);</pre>
-
-<p>
-Moves the element at index <code>fromidx</code>
-into the valid index <code>toidx</code>
-without shifting any element
-(therefore replacing the value at that position).
-
-
-
-
-
-<hr><h3><a name="lua_createtable"><code>lua_createtable</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void lua_createtable (lua_State *L, int narr, int nrec);</pre>
-
-<p>
-Creates a new empty table and pushes it onto the stack.
-Parameter <code>narr</code> is a hint for how many elements the table
-will have as a sequence;
-parameter <code>nrec</code> is a hint for how many other elements
-the table will have.
-Lua may use these hints to preallocate memory for the new table.
-This pre-allocation is useful for performance when you know in advance
-how many elements the table will have.
-Otherwise you can use the function <a href="#lua_newtable"><code>lua_newtable</code></a>.
-
-
-
-
-
-<hr><h3><a name="lua_dump"><code>lua_dump</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>int lua_dump (lua_State *L, lua_Writer writer, void *data);</pre>
-
-<p>
-Dumps a function as a binary chunk.
-Receives a Lua function on the top of the stack
-and produces a binary chunk that,
-if loaded again,
-results in a function equivalent to the one dumped.
-As it produces parts of the chunk,
-<a href="#lua_dump"><code>lua_dump</code></a> calls function <code>writer</code> (see <a href="#lua_Writer"><code>lua_Writer</code></a>)
-with the given <code>data</code>
-to write them.
-
-
-<p>
-The value returned is the error code returned by the last
-call to the writer;
-0 means no errors.
-
-
-<p>
-This function does not pop the Lua function from the stack.
-
-
-
-
-
-<hr><h3><a name="lua_error"><code>lua_error</code></a></h3><p>
-<span class="apii">[-1, +0, <em>v</em>]</span>
-<pre>int lua_error (lua_State *L);</pre>
-
-<p>
-Generates a Lua error.
-The error message (which can actually be a Lua value of any type)
-must be on the stack top.
-This function does a long jump,
-and therefore never returns
-(see <a href="#luaL_error"><code>luaL_error</code></a>).
-
-
-
-
-
-<hr><h3><a name="lua_gc"><code>lua_gc</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>int lua_gc (lua_State *L, int what, int data);</pre>
-
-<p>
-Controls the garbage collector.
-
-
-<p>
-This function performs several tasks,
-according to the value of the parameter <code>what</code>:
-
-<ul>
-
-<li><b><code>LUA_GCSTOP</code>: </b>
-stops the garbage collector.
-</li>
-
-<li><b><code>LUA_GCRESTART</code>: </b>
-restarts the garbage collector.
-</li>
-
-<li><b><code>LUA_GCCOLLECT</code>: </b>
-performs a full garbage-collection cycle.
-</li>
-
-<li><b><code>LUA_GCCOUNT</code>: </b>
-returns the current amount of memory (in Kbytes) in use by Lua.
-</li>
-
-<li><b><code>LUA_GCCOUNTB</code>: </b>
-returns the remainder of dividing the current amount of bytes of
-memory in use by Lua by 1024.
-</li>
-
-<li><b><code>LUA_GCSTEP</code>: </b>
-performs an incremental step of garbage collection.
-The step "size" is controlled by <code>data</code>
-(larger values mean more steps) in a non-specified way.
-If you want to control the step size
-you must experimentally tune the value of <code>data</code>.
-The function returns 1 if the step finished a
-garbage-collection cycle.
-</li>
-
-<li><b><code>LUA_GCSETPAUSE</code>: </b>
-sets <code>data</code> as the new value
-for the <em>pause</em> of the collector (see <a href="#2.5">§2.5</a>).
-The function returns the previous value of the pause.
-</li>
-
-<li><b><code>LUA_GCSETSTEPMUL</code>: </b>
-sets <code>data</code> as the new value for the <em>step multiplier</em> of
-the collector (see <a href="#2.5">§2.5</a>).
-The function returns the previous value of the step multiplier.
-</li>
-
-<li><b><code>LUA_GCISRUNNING</code>: </b>
-returns a boolean that tells whether the collector is running
-(i.e., not stopped).
-</li>
-
-<li><b><code>LUA_GCGEN</code>: </b>
-changes the collector to generational mode
-(see <a href="#2.5">§2.5</a>).
-</li>
-
-<li><b><code>LUA_GCINC</code>: </b>
-changes the collector to incremental mode.
-This is the default mode.
-</li>
-
-</ul>
-
-<p>
-For more details about these options,
-see <a href="#pdf-collectgarbage"><code>collectgarbage</code></a>.
-
-
-
-
-
-<hr><h3><a name="lua_getallocf"><code>lua_getallocf</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Alloc lua_getallocf (lua_State *L, void **ud);</pre>
-
-<p>
-Returns the memory-allocation function of a given state.
-If <code>ud</code> is not <code>NULL</code>, Lua stores in <code>*ud</code> the
-opaque pointer passed to <a href="#lua_newstate"><code>lua_newstate</code></a>.
-
-
-
-
-
-<hr><h3><a name="lua_getctx"><code>lua_getctx</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_getctx (lua_State *L, int *ctx);</pre>
-
-<p>
-This function is called by a continuation function (see <a href="#4.7">§4.7</a>)
-to retrieve the status of the thread and a context information.
-
-
-<p>
-When called in the original function,
-<a href="#lua_getctx"><code>lua_getctx</code></a> always returns <a href="#pdf-LUA_OK"><code>LUA_OK</code></a>
-and does not change the value of its argument <code>ctx</code>.
-When called inside a continuation function,
-<a href="#lua_getctx"><code>lua_getctx</code></a> returns <a href="#pdf-LUA_YIELD"><code>LUA_YIELD</code></a> and sets
-the value of <code>ctx</code> to be the context information
-(the value passed as the <code>ctx</code> argument
-to the callee together with the continuation function).
-
-
-<p>
-When the callee is <a href="#lua_pcallk"><code>lua_pcallk</code></a>,
-Lua may also call its continuation function
-to handle errors during the call.
-That is, upon an error in the function called by <a href="#lua_pcallk"><code>lua_pcallk</code></a>,
-Lua may not return to the original function
-but instead may call the continuation function.
-In that case, a call to <a href="#lua_getctx"><code>lua_getctx</code></a> will return the error code
-(the value that would be returned by <a href="#lua_pcallk"><code>lua_pcallk</code></a>);
-the value of <code>ctx</code> will be set to the context information,
-as in the case of a yield.
-
-
-
-
-
-<hr><h3><a name="lua_getfield"><code>lua_getfield</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void lua_getfield (lua_State *L, int index, const char *k);</pre>
-
-<p>
-Pushes onto the stack the value <code>t[k]</code>,
-where <code>t</code> is the value at the given index.
-As in Lua, this function may trigger a metamethod
-for the "index" event (see <a href="#2.4">§2.4</a>).
-
-
-
-
-
-<hr><h3><a name="lua_getglobal"><code>lua_getglobal</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void lua_getglobal (lua_State *L, const char *name);</pre>
-
-<p>
-Pushes onto the stack the value of the global <code>name</code>.
-
-
-
-
-
-<hr><h3><a name="lua_getmetatable"><code>lua_getmetatable</code></a></h3><p>
-<span class="apii">[-0, +(0|1), –]</span>
-<pre>int lua_getmetatable (lua_State *L, int index);</pre>
-
-<p>
-Pushes onto the stack the metatable of the value at the given index.
-If the value does not have a metatable,
-the function returns 0 and pushes nothing on the stack.
-
-
-
-
-
-<hr><h3><a name="lua_gettable"><code>lua_gettable</code></a></h3><p>
-<span class="apii">[-1, +1, <em>e</em>]</span>
-<pre>void lua_gettable (lua_State *L, int index);</pre>
-
-<p>
-Pushes onto the stack the value <code>t[k]</code>,
-where <code>t</code> is the value at the given index
-and <code>k</code> is the value at the top of the stack.
-
-
-<p>
-This function pops the key from the stack
-(putting the resulting value in its place).
-As in Lua, this function may trigger a metamethod
-for the "index" event (see <a href="#2.4">§2.4</a>).
-
-
-
-
-
-<hr><h3><a name="lua_gettop"><code>lua_gettop</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_gettop (lua_State *L);</pre>
-
-<p>
-Returns the index of the top element in the stack.
-Because indices start at 1,
-this result is equal to the number of elements in the stack
-(and so 0 means an empty stack).
-
-
-
-
-
-<hr><h3><a name="lua_getuservalue"><code>lua_getuservalue</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_getuservalue (lua_State *L, int index);</pre>
-
-<p>
-Pushes onto the stack the Lua value associated with the userdata
-at the given index.
-This Lua value must be a table or <b>nil</b>.
-
-
-
-
-
-<hr><h3><a name="lua_insert"><code>lua_insert</code></a></h3><p>
-<span class="apii">[-1, +1, –]</span>
-<pre>void lua_insert (lua_State *L, int index);</pre>
-
-<p>
-Moves the top element into the given valid index,
-shifting up the elements above this index to open space.
-This function cannot be called with a pseudo-index,
-because a pseudo-index is not an actual stack position.
-
-
-
-
-
-<hr><h3><a name="lua_Integer"><code>lua_Integer</code></a></h3>
-<pre>typedef ptrdiff_t lua_Integer;</pre>
-
-<p>
-The type used by the Lua API to represent signed integral values.
-
-
-<p>
-By default it is a <code>ptrdiff_t</code>,
-which is usually the largest signed integral type the machine handles
-"comfortably".
-
-
-
-
-
-<hr><h3><a name="lua_isboolean"><code>lua_isboolean</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isboolean (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a boolean,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_iscfunction"><code>lua_iscfunction</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_iscfunction (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a C function,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isfunction"><code>lua_isfunction</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isfunction (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a function
-(either C or Lua), and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_islightuserdata"><code>lua_islightuserdata</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_islightuserdata (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a light userdata,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isnil"><code>lua_isnil</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isnil (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is <b>nil</b>,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isnone"><code>lua_isnone</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isnone (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the given index is not valid,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isnoneornil"><code>lua_isnoneornil</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isnoneornil (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the given index is not valid
-or if the value at this index is <b>nil</b>,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isnumber"><code>lua_isnumber</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isnumber (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a number
-or a string convertible to a number,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isstring"><code>lua_isstring</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isstring (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a string
-or a number (which is always convertible to a string),
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_istable"><code>lua_istable</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_istable (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a table,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isthread"><code>lua_isthread</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isthread (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a thread,
-and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_isuserdata"><code>lua_isuserdata</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_isuserdata (lua_State *L, int index);</pre>
-
-<p>
-Returns 1 if the value at the given index is a userdata
-(either full or light), and 0 otherwise.
-
-
-
-
-
-<hr><h3><a name="lua_len"><code>lua_len</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void lua_len (lua_State *L, int index);</pre>
-
-<p>
-Returns the "length" of the value at the given index;
-it is equivalent to the '<code>#</code>' operator in Lua (see <a href="#3.4.6">§3.4.6</a>).
-The result is pushed on the stack.
-
-
-
-
-
-<hr><h3><a name="lua_load"><code>lua_load</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>int lua_load (lua_State *L,
- lua_Reader reader,
- void *data,
- const char *source,
- const char *mode);</pre>
-
-<p>
-Loads a Lua chunk (without running it).
-If there are no errors,
-<code>lua_load</code> pushes the compiled chunk as a Lua
-function on top of the stack.
-Otherwise, it pushes an error message.
-
-
-<p>
-The return values of <code>lua_load</code> are:
-
-<ul>
-
-<li><b><a href="#pdf-LUA_OK"><code>LUA_OK</code></a>: </b> no errors;</li>
-
-<li><b><a name="pdf-LUA_ERRSYNTAX"><code>LUA_ERRSYNTAX</code></a>: </b>
-syntax error during precompilation;</li>
-
-<li><b><a href="#pdf-LUA_ERRMEM"><code>LUA_ERRMEM</code></a>: </b>
-memory allocation error;</li>
-
-<li><b><a href="#pdf-LUA_ERRGCMM"><code>LUA_ERRGCMM</code></a>: </b>
-error while running a <code>__gc</code> metamethod.
-(This error has no relation with the chunk being loaded.
-It is generated by the garbage collector.)
-</li>
-
-</ul>
-
-<p>
-The <code>lua_load</code> function uses a user-supplied <code>reader</code> function
-to read the chunk (see <a href="#lua_Reader"><code>lua_Reader</code></a>).
-The <code>data</code> argument is an opaque value passed to the reader function.
-
-
-<p>
-The <code>source</code> argument gives a name to the chunk,
-which is used for error messages and in debug information (see <a href="#4.9">§4.9</a>).
-
-
-<p>
-<code>lua_load</code> automatically detects whether the chunk is text or binary
-and loads it accordingly (see program <code>luac</code>).
-The string <code>mode</code> works as in function <a href="#pdf-load"><code>load</code></a>,
-with the addition that
-a <code>NULL</code> value is equivalent to the string "<code>bt</code>".
-
-
-<p>
-<code>lua_load</code> uses the stack internally,
-so the reader function should always leave the stack
-unmodified when returning.
-
-
-<p>
-If the resulting function has one upvalue,
-this upvalue is set to the value of the global environment
-stored at index <code>LUA_RIDX_GLOBALS</code> in the registry (see <a href="#4.5">§4.5</a>).
-When loading main chunks,
-this upvalue will be the <code>_ENV</code> variable (see <a href="#2.2">§2.2</a>).
-
-
-
-
-
-<hr><h3><a name="lua_newstate"><code>lua_newstate</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_State *lua_newstate (lua_Alloc f, void *ud);</pre>
-
-<p>
-Creates a new thread running in a new, independent state.
-Returns <code>NULL</code> if cannot create the thread or the state
-(due to lack of memory).
-The argument <code>f</code> is the allocator function;
-Lua does all memory allocation for this state through this function.
-The second argument, <code>ud</code>, is an opaque pointer that Lua
-passes to the allocator in every call.
-
-
-
-
-
-<hr><h3><a name="lua_newtable"><code>lua_newtable</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void lua_newtable (lua_State *L);</pre>
-
-<p>
-Creates a new empty table and pushes it onto the stack.
-It is equivalent to <code>lua_createtable(L, 0, 0)</code>.
-
-
-
-
-
-<hr><h3><a name="lua_newthread"><code>lua_newthread</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>lua_State *lua_newthread (lua_State *L);</pre>
-
-<p>
-Creates a new thread, pushes it on the stack,
-and returns a pointer to a <a href="#lua_State"><code>lua_State</code></a> that represents this new thread.
-The new thread returned by this function shares with the original thread
-its global environment,
-but has an independent execution stack.
-
-
-<p>
-There is no explicit function to close or to destroy a thread.
-Threads are subject to garbage collection,
-like any Lua object.
-
-
-
-
-
-<hr><h3><a name="lua_newuserdata"><code>lua_newuserdata</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void *lua_newuserdata (lua_State *L, size_t size);</pre>
-
-<p>
-This function allocates a new block of memory with the given size,
-pushes onto the stack a new full userdata with the block address,
-and returns this address.
-The host program can freely use this memory.
-
-
-
-
-
-<hr><h3><a name="lua_next"><code>lua_next</code></a></h3><p>
-<span class="apii">[-1, +(2|0), <em>e</em>]</span>
-<pre>int lua_next (lua_State *L, int index);</pre>
-
-<p>
-Pops a key from the stack,
-and pushes a key–value pair from the table at the given index
-(the "next" pair after the given key).
-If there are no more elements in the table,
-then <a href="#lua_next"><code>lua_next</code></a> returns 0 (and pushes nothing).
-
-
-<p>
-A typical traversal looks like this:
-
-<pre>
- /* table is in the stack at index 't' */
- lua_pushnil(L); /* first key */
- while (lua_next(L, t) != 0) {
- /* uses 'key' (at index -2) and 'value' (at index -1) */
- printf("%s - %s\n",
- lua_typename(L, lua_type(L, -2)),
- lua_typename(L, lua_type(L, -1)));
- /* removes 'value'; keeps 'key' for next iteration */
- lua_pop(L, 1);
- }
-</pre>
-
-<p>
-While traversing a table,
-do not call <a href="#lua_tolstring"><code>lua_tolstring</code></a> directly on a key,
-unless you know that the key is actually a string.
-Recall that <a href="#lua_tolstring"><code>lua_tolstring</code></a> may change
-the value at the given index;
-this confuses the next call to <a href="#lua_next"><code>lua_next</code></a>.
-
-
-<p>
-See function <a href="#pdf-next"><code>next</code></a> for the caveats of modifying
-the table during its traversal.
-
-
-
-
-
-<hr><h3><a name="lua_Number"><code>lua_Number</code></a></h3>
-<pre>typedef double lua_Number;</pre>
-
-<p>
-The type of numbers in Lua.
-By default, it is double, but that can be changed in <code>luaconf.h</code>.
-Through this configuration file you can change
-Lua to operate with another type for numbers (e.g., float or long).
-
-
-
-
-
-<hr><h3><a name="lua_pcall"><code>lua_pcall</code></a></h3><p>
-<span class="apii">[-(nargs + 1), +(nresults|1), –]</span>
-<pre>int lua_pcall (lua_State *L, int nargs, int nresults, int msgh);</pre>
-
-<p>
-Calls a function in protected mode.
-
-
-<p>
-Both <code>nargs</code> and <code>nresults</code> have the same meaning as
-in <a href="#lua_call"><code>lua_call</code></a>.
-If there are no errors during the call,
-<a href="#lua_pcall"><code>lua_pcall</code></a> behaves exactly like <a href="#lua_call"><code>lua_call</code></a>.
-However, if there is any error,
-<a href="#lua_pcall"><code>lua_pcall</code></a> catches it,
-pushes a single value on the stack (the error message),
-and returns an error code.
-Like <a href="#lua_call"><code>lua_call</code></a>,
-<a href="#lua_pcall"><code>lua_pcall</code></a> always removes the function
-and its arguments from the stack.
-
-
-<p>
-If <code>msgh</code> is 0,
-then the error message returned on the stack
-is exactly the original error message.
-Otherwise, <code>msgh</code> is the stack index of a
-<em>message handler</em>.
-(In the current implementation, this index cannot be a pseudo-index.)
-In case of runtime errors,
-this function will be called with the error message
-and its return value will be the message
-returned on the stack by <a href="#lua_pcall"><code>lua_pcall</code></a>.
-
-
-<p>
-Typically, the message handler is used to add more debug
-information to the error message, such as a stack traceback.
-Such information cannot be gathered after the return of <a href="#lua_pcall"><code>lua_pcall</code></a>,
-since by then the stack has unwound.
-
-
-<p>
-The <a href="#lua_pcall"><code>lua_pcall</code></a> function returns one of the following codes
-(defined in <code>lua.h</code>):
-
-<ul>
-
-<li><b><a name="pdf-LUA_OK"><code>LUA_OK</code></a> (0): </b>
-success.</li>
-
-<li><b><a name="pdf-LUA_ERRRUN"><code>LUA_ERRRUN</code></a>: </b>
-a runtime error.
-</li>
-
-<li><b><a name="pdf-LUA_ERRMEM"><code>LUA_ERRMEM</code></a>: </b>
-memory allocation error.
-For such errors, Lua does not call the message handler.
-</li>
-
-<li><b><a name="pdf-LUA_ERRERR"><code>LUA_ERRERR</code></a>: </b>
-error while running the message handler.
-</li>
-
-<li><b><a name="pdf-LUA_ERRGCMM"><code>LUA_ERRGCMM</code></a>: </b>
-error while running a <code>__gc</code> metamethod.
-(This error typically has no relation with the function being called.
-It is generated by the garbage collector.)
-</li>
-
-</ul>
-
-
-
-
-<hr><h3><a name="lua_pcallk"><code>lua_pcallk</code></a></h3><p>
-<span class="apii">[-(nargs + 1), +(nresults|1), –]</span>
-<pre>int lua_pcallk (lua_State *L,
- int nargs,
- int nresults,
- int errfunc,
- int ctx,
- lua_CFunction k);</pre>
-
-<p>
-This function behaves exactly like <a href="#lua_pcall"><code>lua_pcall</code></a>,
-but allows the called function to yield (see <a href="#4.7">§4.7</a>).
-
-
-
-
-
-<hr><h3><a name="lua_pop"><code>lua_pop</code></a></h3><p>
-<span class="apii">[-n, +0, –]</span>
-<pre>void lua_pop (lua_State *L, int n);</pre>
-
-<p>
-Pops <code>n</code> elements from the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushboolean"><code>lua_pushboolean</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushboolean (lua_State *L, int b);</pre>
-
-<p>
-Pushes a boolean value with value <code>b</code> onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushcclosure"><code>lua_pushcclosure</code></a></h3><p>
-<span class="apii">[-n, +1, <em>e</em>]</span>
-<pre>void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n);</pre>
-
-<p>
-Pushes a new C closure onto the stack.
-
-
-<p>
-When a C function is created,
-it is possible to associate some values with it,
-thus creating a C closure (see <a href="#4.4">§4.4</a>);
-these values are then accessible to the function whenever it is called.
-To associate values with a C function,
-first these values should be pushed onto the stack
-(when there are multiple values, the first value is pushed first).
-Then <a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a>
-is called to create and push the C function onto the stack,
-with the argument <code>n</code> telling how many values should be
-associated with the function.
-<a href="#lua_pushcclosure"><code>lua_pushcclosure</code></a> also pops these values from the stack.
-
-
-<p>
-The maximum value for <code>n</code> is 255.
-
-
-<p>
-When <code>n</code> is zero,
-this function creates a <em>light C function</em>,
-which is just a pointer to the C function.
-In that case, it never throws a memory error.
-
-
-
-
-
-<hr><h3><a name="lua_pushcfunction"><code>lua_pushcfunction</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushcfunction (lua_State *L, lua_CFunction f);</pre>
-
-<p>
-Pushes a C function onto the stack.
-This function receives a pointer to a C function
-and pushes onto the stack a Lua value of type <code>function</code> that,
-when called, invokes the corresponding C function.
-
-
-<p>
-Any function to be registered in Lua must
-follow the correct protocol to receive its parameters
-and return its results (see <a href="#lua_CFunction"><code>lua_CFunction</code></a>).
-
-
-<p>
-<code>lua_pushcfunction</code> is defined as a macro:
-
-<pre>
- #define lua_pushcfunction(L,f) lua_pushcclosure(L,f,0)
-</pre><p>
-Note that <code>f</code> is used twice.
-
-
-
-
-
-<hr><h3><a name="lua_pushfstring"><code>lua_pushfstring</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *lua_pushfstring (lua_State *L, const char *fmt, ...);</pre>
-
-<p>
-Pushes onto the stack a formatted string
-and returns a pointer to this string.
-It is similar to the ISO C function <code>sprintf</code>,
-but has some important differences:
-
-<ul>
-
-<li>
-You do not have to allocate space for the result:
-the result is a Lua string and Lua takes care of memory allocation
-(and deallocation, through garbage collection).
-</li>
-
-<li>
-The conversion specifiers are quite restricted.
-There are no flags, widths, or precisions.
-The conversion specifiers can only be
-'<code>%%</code>' (inserts a '<code>%</code>' in the string),
-'<code>%s</code>' (inserts a zero-terminated string, with no size restrictions),
-'<code>%f</code>' (inserts a <a href="#lua_Number"><code>lua_Number</code></a>),
-'<code>%p</code>' (inserts a pointer as a hexadecimal numeral),
-'<code>%d</code>' (inserts an <code>int</code>), and
-'<code>%c</code>' (inserts an <code>int</code> as a byte).
-</li>
-
-</ul>
-
-
-
-
-<hr><h3><a name="lua_pushglobaltable"><code>lua_pushglobaltable</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushglobaltable (lua_State *L);</pre>
-
-<p>
-Pushes the global environment onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushinteger"><code>lua_pushinteger</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushinteger (lua_State *L, lua_Integer n);</pre>
-
-<p>
-Pushes a number with value <code>n</code> onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushlightuserdata"><code>lua_pushlightuserdata</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushlightuserdata (lua_State *L, void *p);</pre>
-
-<p>
-Pushes a light userdata onto the stack.
-
-
-<p>
-Userdata represent C values in Lua.
-A <em>light userdata</em> represents a pointer, a <code>void*</code>.
-It is a value (like a number):
-you do not create it, it has no individual metatable,
-and it is not collected (as it was never created).
-A light userdata is equal to "any"
-light userdata with the same C address.
-
-
-
-
-
-<hr><h3><a name="lua_pushliteral"><code>lua_pushliteral</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *lua_pushliteral (lua_State *L, const char *s);</pre>
-
-<p>
-This macro is equivalent to <a href="#lua_pushlstring"><code>lua_pushlstring</code></a>,
-but can be used only when <code>s</code> is a literal string.
-It automatically provides the string length.
-
-
-
-
-
-<hr><h3><a name="lua_pushlstring"><code>lua_pushlstring</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *lua_pushlstring (lua_State *L, const char *s, size_t len);</pre>
-
-<p>
-Pushes the string pointed to by <code>s</code> with size <code>len</code>
-onto the stack.
-Lua makes (or reuses) an internal copy of the given string,
-so the memory at <code>s</code> can be freed or reused immediately after
-the function returns.
-The string can contain any binary data,
-including embedded zeros.
-
-
-<p>
-Returns a pointer to the internal copy of the string.
-
-
-
-
-
-<hr><h3><a name="lua_pushnil"><code>lua_pushnil</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushnil (lua_State *L);</pre>
-
-<p>
-Pushes a nil value onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushnumber"><code>lua_pushnumber</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushnumber (lua_State *L, lua_Number n);</pre>
-
-<p>
-Pushes a number with value <code>n</code> onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushstring"><code>lua_pushstring</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *lua_pushstring (lua_State *L, const char *s);</pre>
-
-<p>
-Pushes the zero-terminated string pointed to by <code>s</code>
-onto the stack.
-Lua makes (or reuses) an internal copy of the given string,
-so the memory at <code>s</code> can be freed or reused immediately after
-the function returns.
-
-
-<p>
-Returns a pointer to the internal copy of the string.
-
-
-<p>
-If <code>s</code> is <code>NULL</code>, pushes <b>nil</b> and returns <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_pushthread"><code>lua_pushthread</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>int lua_pushthread (lua_State *L);</pre>
-
-<p>
-Pushes the thread represented by <code>L</code> onto the stack.
-Returns 1 if this thread is the main thread of its state.
-
-
-
-
-
-<hr><h3><a name="lua_pushunsigned"><code>lua_pushunsigned</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushunsigned (lua_State *L, lua_Unsigned n);</pre>
-
-<p>
-Pushes a number with value <code>n</code> onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushvalue"><code>lua_pushvalue</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_pushvalue (lua_State *L, int index);</pre>
-
-<p>
-Pushes a copy of the element at the given index
-onto the stack.
-
-
-
-
-
-<hr><h3><a name="lua_pushvfstring"><code>lua_pushvfstring</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *lua_pushvfstring (lua_State *L,
- const char *fmt,
- va_list argp);</pre>
-
-<p>
-Equivalent to <a href="#lua_pushfstring"><code>lua_pushfstring</code></a>, except that it receives a <code>va_list</code>
-instead of a variable number of arguments.
-
-
-
-
-
-<hr><h3><a name="lua_rawequal"><code>lua_rawequal</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_rawequal (lua_State *L, int index1, int index2);</pre>
-
-<p>
-Returns 1 if the two values in indices <code>index1</code> and
-<code>index2</code> are primitively equal
-(that is, without calling metamethods).
-Otherwise returns 0.
-Also returns 0 if any of the indices are non valid.
-
-
-
-
-
-<hr><h3><a name="lua_rawget"><code>lua_rawget</code></a></h3><p>
-<span class="apii">[-1, +1, –]</span>
-<pre>void lua_rawget (lua_State *L, int index);</pre>
-
-<p>
-Similar to <a href="#lua_gettable"><code>lua_gettable</code></a>, but does a raw access
-(i.e., without metamethods).
-
-
-
-
-
-<hr><h3><a name="lua_rawgeti"><code>lua_rawgeti</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_rawgeti (lua_State *L, int index, int n);</pre>
-
-<p>
-Pushes onto the stack the value <code>t[n]</code>,
-where <code>t</code> is the table at the given index.
-The access is raw;
-that is, it does not invoke metamethods.
-
-
-
-
-
-<hr><h3><a name="lua_rawgetp"><code>lua_rawgetp</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void lua_rawgetp (lua_State *L, int index, const void *p);</pre>
-
-<p>
-Pushes onto the stack the value <code>t[k]</code>,
-where <code>t</code> is the table at the given index and
-<code>k</code> is the pointer <code>p</code> represented as a light userdata.
-The access is raw;
-that is, it does not invoke metamethods.
-
-
-
-
-
-<hr><h3><a name="lua_rawlen"><code>lua_rawlen</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>size_t lua_rawlen (lua_State *L, int index);</pre>
-
-<p>
-Returns the raw "length" of the value at the given index:
-for strings, this is the string length;
-for tables, this is the result of the length operator ('<code>#</code>')
-with no metamethods;
-for userdata, this is the size of the block of memory allocated
-for the userdata;
-for other values, it is 0.
-
-
-
-
-
-<hr><h3><a name="lua_rawset"><code>lua_rawset</code></a></h3><p>
-<span class="apii">[-2, +0, <em>e</em>]</span>
-<pre>void lua_rawset (lua_State *L, int index);</pre>
-
-<p>
-Similar to <a href="#lua_settable"><code>lua_settable</code></a>, but does a raw assignment
-(i.e., without metamethods).
-
-
-
-
-
-<hr><h3><a name="lua_rawseti"><code>lua_rawseti</code></a></h3><p>
-<span class="apii">[-1, +0, <em>e</em>]</span>
-<pre>void lua_rawseti (lua_State *L, int index, int n);</pre>
-
-<p>
-Does the equivalent of <code>t[n] = v</code>,
-where <code>t</code> is the table at the given index
-and <code>v</code> is the value at the top of the stack.
-
-
-<p>
-This function pops the value from the stack.
-The assignment is raw;
-that is, it does not invoke metamethods.
-
-
-
-
-
-<hr><h3><a name="lua_rawsetp"><code>lua_rawsetp</code></a></h3><p>
-<span class="apii">[-1, +0, <em>e</em>]</span>
-<pre>void lua_rawsetp (lua_State *L, int index, const void *p);</pre>
-
-<p>
-Does the equivalent of <code>t[k] = v</code>,
-where <code>t</code> is the table at the given index,
-<code>k</code> is the pointer <code>p</code> represented as a light userdata,
-and <code>v</code> is the value at the top of the stack.
-
-
-<p>
-This function pops the value from the stack.
-The assignment is raw;
-that is, it does not invoke metamethods.
-
-
-
-
-
-<hr><h3><a name="lua_Reader"><code>lua_Reader</code></a></h3>
-<pre>typedef const char * (*lua_Reader) (lua_State *L,
- void *data,
- size_t *size);</pre>
-
-<p>
-The reader function used by <a href="#lua_load"><code>lua_load</code></a>.
-Every time it needs another piece of the chunk,
-<a href="#lua_load"><code>lua_load</code></a> calls the reader,
-passing along its <code>data</code> parameter.
-The reader must return a pointer to a block of memory
-with a new piece of the chunk
-and set <code>size</code> to the block size.
-The block must exist until the reader function is called again.
-To signal the end of the chunk,
-the reader must return <code>NULL</code> or set <code>size</code> to zero.
-The reader function may return pieces of any size greater than zero.
-
-
-
-
-
-<hr><h3><a name="lua_register"><code>lua_register</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>void lua_register (lua_State *L, const char *name, lua_CFunction f);</pre>
-
-<p>
-Sets the C function <code>f</code> as the new value of global <code>name</code>.
-It is defined as a macro:
-
-<pre>
- #define lua_register(L,n,f) \
- (lua_pushcfunction(L, f), lua_setglobal(L, n))
-</pre>
-
-
-
-
-<hr><h3><a name="lua_remove"><code>lua_remove</code></a></h3><p>
-<span class="apii">[-1, +0, –]</span>
-<pre>void lua_remove (lua_State *L, int index);</pre>
-
-<p>
-Removes the element at the given valid index,
-shifting down the elements above this index to fill the gap.
-This function cannot be called with a pseudo-index,
-because a pseudo-index is not an actual stack position.
-
-
-
-
-
-<hr><h3><a name="lua_replace"><code>lua_replace</code></a></h3><p>
-<span class="apii">[-1, +0, –]</span>
-<pre>void lua_replace (lua_State *L, int index);</pre>
-
-<p>
-Moves the top element into the given valid index
-without shifting any element
-(therefore replacing the value at the given index),
-and then pops the top element.
-
-
-
-
-
-<hr><h3><a name="lua_resume"><code>lua_resume</code></a></h3><p>
-<span class="apii">[-?, +?, –]</span>
-<pre>int lua_resume (lua_State *L, lua_State *from, int nargs);</pre>
-
-<p>
-Starts and resumes a coroutine in a given thread.
-
-
-<p>
-To start a coroutine,
-you push onto the thread stack the main function plus any arguments;
-then you call <a href="#lua_resume"><code>lua_resume</code></a>,
-with <code>nargs</code> being the number of arguments.
-This call returns when the coroutine suspends or finishes its execution.
-When it returns, the stack contains all values passed to <a href="#lua_yield"><code>lua_yield</code></a>,
-or all values returned by the body function.
-<a href="#lua_resume"><code>lua_resume</code></a> returns
-<a href="#pdf-LUA_YIELD"><code>LUA_YIELD</code></a> if the coroutine yields,
-<a href="#pdf-LUA_OK"><code>LUA_OK</code></a> if the coroutine finishes its execution
-without errors,
-or an error code in case of errors (see <a href="#lua_pcall"><code>lua_pcall</code></a>).
-
-
-<p>
-In case of errors,
-the stack is not unwound,
-so you can use the debug API over it.
-The error message is on the top of the stack.
-
-
-<p>
-To resume a coroutine,
-you remove any results from the last <a href="#lua_yield"><code>lua_yield</code></a>,
-put on its stack only the values to
-be passed as results from <code>yield</code>,
-and then call <a href="#lua_resume"><code>lua_resume</code></a>.
-
-
-<p>
-The parameter <code>from</code> represents the coroutine that is resuming <code>L</code>.
-If there is no such coroutine,
-this parameter can be <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_setallocf"><code>lua_setallocf</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);</pre>
-
-<p>
-Changes the allocator function of a given state to <code>f</code>
-with user data <code>ud</code>.
-
-
-
-
-
-<hr><h3><a name="lua_setfield"><code>lua_setfield</code></a></h3><p>
-<span class="apii">[-1, +0, <em>e</em>]</span>
-<pre>void lua_setfield (lua_State *L, int index, const char *k);</pre>
-
-<p>
-Does the equivalent to <code>t[k] = v</code>,
-where <code>t</code> is the value at the given index
-and <code>v</code> is the value at the top of the stack.
-
-
-<p>
-This function pops the value from the stack.
-As in Lua, this function may trigger a metamethod
-for the "newindex" event (see <a href="#2.4">§2.4</a>).
-
-
-
-
-
-<hr><h3><a name="lua_setglobal"><code>lua_setglobal</code></a></h3><p>
-<span class="apii">[-1, +0, <em>e</em>]</span>
-<pre>void lua_setglobal (lua_State *L, const char *name);</pre>
-
-<p>
-Pops a value from the stack and
-sets it as the new value of global <code>name</code>.
-
-
-
-
-
-<hr><h3><a name="lua_setmetatable"><code>lua_setmetatable</code></a></h3><p>
-<span class="apii">[-1, +0, –]</span>
-<pre>void lua_setmetatable (lua_State *L, int index);</pre>
-
-<p>
-Pops a table from the stack and
-sets it as the new metatable for the value at the given index.
-
-
-
-
-
-<hr><h3><a name="lua_settable"><code>lua_settable</code></a></h3><p>
-<span class="apii">[-2, +0, <em>e</em>]</span>
-<pre>void lua_settable (lua_State *L, int index);</pre>
-
-<p>
-Does the equivalent to <code>t[k] = v</code>,
-where <code>t</code> is the value at the given index,
-<code>v</code> is the value at the top of the stack,
-and <code>k</code> is the value just below the top.
-
-
-<p>
-This function pops both the key and the value from the stack.
-As in Lua, this function may trigger a metamethod
-for the "newindex" event (see <a href="#2.4">§2.4</a>).
-
-
-
-
-
-<hr><h3><a name="lua_settop"><code>lua_settop</code></a></h3><p>
-<span class="apii">[-?, +?, –]</span>
-<pre>void lua_settop (lua_State *L, int index);</pre>
-
-<p>
-Accepts any index, or 0,
-and sets the stack top to this index.
-If the new top is larger than the old one,
-then the new elements are filled with <b>nil</b>.
-If <code>index</code> is 0, then all stack elements are removed.
-
-
-
-
-
-<hr><h3><a name="lua_setuservalue"><code>lua_setuservalue</code></a></h3><p>
-<span class="apii">[-1, +0, –]</span>
-<pre>void lua_setuservalue (lua_State *L, int index);</pre>
-
-<p>
-Pops a table or <b>nil</b> from the stack and sets it as
-the new value associated to the userdata at the given index.
-
-
-
-
-
-<hr><h3><a name="lua_State"><code>lua_State</code></a></h3>
-<pre>typedef struct lua_State lua_State;</pre>
-
-<p>
-An opaque structure that points to a thread and indirectly
-(through the thread) to the whole state of a Lua interpreter.
-The Lua library is fully reentrant:
-it has no global variables.
-All information about a state is accessible through this structure.
-
-
-<p>
-A pointer to this structure must be passed as the first argument to
-every function in the library, except to <a href="#lua_newstate"><code>lua_newstate</code></a>,
-which creates a Lua state from scratch.
-
-
-
-
-
-<hr><h3><a name="lua_status"><code>lua_status</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_status (lua_State *L);</pre>
-
-<p>
-Returns the status of the thread <code>L</code>.
-
-
-<p>
-The status can be 0 (<a href="#pdf-LUA_OK"><code>LUA_OK</code></a>) for a normal thread,
-an error code if the thread finished the execution
-of a <a href="#lua_resume"><code>lua_resume</code></a> with an error,
-or <a name="pdf-LUA_YIELD"><code>LUA_YIELD</code></a> if the thread is suspended.
-
-
-<p>
-You can only call functions in threads with status <a href="#pdf-LUA_OK"><code>LUA_OK</code></a>.
-You can resume threads with status <a href="#pdf-LUA_OK"><code>LUA_OK</code></a>
-(to start a new coroutine) or <a href="#pdf-LUA_YIELD"><code>LUA_YIELD</code></a>
-(to resume a coroutine).
-
-
-
-
-
-<hr><h3><a name="lua_toboolean"><code>lua_toboolean</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_toboolean (lua_State *L, int index);</pre>
-
-<p>
-Converts the Lua value at the given index to a C boolean
-value (0 or 1).
-Like all tests in Lua,
-<a href="#lua_toboolean"><code>lua_toboolean</code></a> returns true for any Lua value
-different from <b>false</b> and <b>nil</b>;
-otherwise it returns false.
-(If you want to accept only actual boolean values,
-use <a href="#lua_isboolean"><code>lua_isboolean</code></a> to test the value's type.)
-
-
-
-
-
-<hr><h3><a name="lua_tocfunction"><code>lua_tocfunction</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_CFunction lua_tocfunction (lua_State *L, int index);</pre>
-
-<p>
-Converts a value at the given index to a C function.
-That value must be a C function;
-otherwise, returns <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_tointeger"><code>lua_tointeger</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Integer lua_tointeger (lua_State *L, int index);</pre>
-
-<p>
-Equivalent to <a href="#lua_tointegerx"><code>lua_tointegerx</code></a> with <code>isnum</code> equal to <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_tointegerx"><code>lua_tointegerx</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Integer lua_tointegerx (lua_State *L, int index, int *isnum);</pre>
-
-<p>
-Converts the Lua value at the given index
-to the signed integral type <a href="#lua_Integer"><code>lua_Integer</code></a>.
-The Lua value must be a number or a string convertible to a number
-(see <a href="#3.4.2">§3.4.2</a>);
-otherwise, <code>lua_tointegerx</code> returns 0.
-
-
-<p>
-If the number is not an integer,
-it is truncated in some non-specified way.
-
-
-<p>
-If <code>isnum</code> is not <code>NULL</code>,
-its referent is assigned a boolean value that
-indicates whether the operation succeeded.
-
-
-
-
-
-<hr><h3><a name="lua_tolstring"><code>lua_tolstring</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>const char *lua_tolstring (lua_State *L, int index, size_t *len);</pre>
-
-<p>
-Converts the Lua value at the given index to a C string.
-If <code>len</code> is not <code>NULL</code>,
-it also sets <code>*len</code> with the string length.
-The Lua value must be a string or a number;
-otherwise, the function returns <code>NULL</code>.
-If the value is a number,
-then <code>lua_tolstring</code> also
-<em>changes the actual value in the stack to a string</em>.
-(This change confuses <a href="#lua_next"><code>lua_next</code></a>
-when <code>lua_tolstring</code> is applied to keys during a table traversal.)
-
-
-<p>
-<code>lua_tolstring</code> returns a fully aligned pointer
-to a string inside the Lua state.
-This string always has a zero ('<code>\0</code>')
-after its last character (as in C),
-but can contain other zeros in its body.
-Because Lua has garbage collection,
-there is no guarantee that the pointer returned by <code>lua_tolstring</code>
-will be valid after the corresponding value is removed from the stack.
-
-
-
-
-
-<hr><h3><a name="lua_tonumber"><code>lua_tonumber</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Number lua_tonumber (lua_State *L, int index);</pre>
-
-<p>
-Equivalent to <a href="#lua_tonumberx"><code>lua_tonumberx</code></a> with <code>isnum</code> equal to <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_tonumberx"><code>lua_tonumberx</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Number lua_tonumberx (lua_State *L, int index, int *isnum);</pre>
-
-<p>
-Converts the Lua value at the given index
-to the C type <a href="#lua_Number"><code>lua_Number</code></a> (see <a href="#lua_Number"><code>lua_Number</code></a>).
-The Lua value must be a number or a string convertible to a number
-(see <a href="#3.4.2">§3.4.2</a>);
-otherwise, <a href="#lua_tonumberx"><code>lua_tonumberx</code></a> returns 0.
-
-
-<p>
-If <code>isnum</code> is not <code>NULL</code>,
-its referent is assigned a boolean value that
-indicates whether the operation succeeded.
-
-
-
-
-
-<hr><h3><a name="lua_topointer"><code>lua_topointer</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>const void *lua_topointer (lua_State *L, int index);</pre>
-
-<p>
-Converts the value at the given index to a generic
-C pointer (<code>void*</code>).
-The value can be a userdata, a table, a thread, or a function;
-otherwise, <code>lua_topointer</code> returns <code>NULL</code>.
-Different objects will give different pointers.
-There is no way to convert the pointer back to its original value.
-
-
-<p>
-Typically this function is used only for debug information.
-
-
-
-
-
-<hr><h3><a name="lua_tostring"><code>lua_tostring</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>const char *lua_tostring (lua_State *L, int index);</pre>
-
-<p>
-Equivalent to <a href="#lua_tolstring"><code>lua_tolstring</code></a> with <code>len</code> equal to <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_tothread"><code>lua_tothread</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_State *lua_tothread (lua_State *L, int index);</pre>
-
-<p>
-Converts the value at the given index to a Lua thread
-(represented as <code>lua_State*</code>).
-This value must be a thread;
-otherwise, the function returns <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_tounsigned"><code>lua_tounsigned</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Unsigned lua_tounsigned (lua_State *L, int index);</pre>
-
-<p>
-Equivalent to <a href="#lua_tounsignedx"><code>lua_tounsignedx</code></a> with <code>isnum</code> equal to <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_tounsignedx"><code>lua_tounsignedx</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Unsigned lua_tounsignedx (lua_State *L, int index, int *isnum);</pre>
-
-<p>
-Converts the Lua value at the given index
-to the unsigned integral type <a href="#lua_Unsigned"><code>lua_Unsigned</code></a>.
-The Lua value must be a number or a string convertible to a number
-(see <a href="#3.4.2">§3.4.2</a>);
-otherwise, <code>lua_tounsignedx</code> returns 0.
-
-
-<p>
-If the number is not an integer,
-it is truncated in some non-specified way.
-If the number is outside the range of representable values,
-it is normalized to the remainder of its division by
-one more than the maximum representable value.
-
-
-<p>
-If <code>isnum</code> is not <code>NULL</code>,
-its referent is assigned a boolean value that
-indicates whether the operation succeeded.
-
-
-
-
-
-<hr><h3><a name="lua_touserdata"><code>lua_touserdata</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void *lua_touserdata (lua_State *L, int index);</pre>
-
-<p>
-If the value at the given index is a full userdata,
-returns its block address.
-If the value is a light userdata,
-returns its pointer.
-Otherwise, returns <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="lua_type"><code>lua_type</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_type (lua_State *L, int index);</pre>
-
-<p>
-Returns the type of the value in the given valid index,
-or <code>LUA_TNONE</code> for a non-valid (but acceptable) index.
-The types returned by <a href="#lua_type"><code>lua_type</code></a> are coded by the following constants
-defined in <code>lua.h</code>:
-<a name="pdf-LUA_TNIL"><code>LUA_TNIL</code></a>,
-<a name="pdf-LUA_TNUMBER"><code>LUA_TNUMBER</code></a>,
-<a name="pdf-LUA_TBOOLEAN"><code>LUA_TBOOLEAN</code></a>,
-<a name="pdf-LUA_TSTRING"><code>LUA_TSTRING</code></a>,
-<a name="pdf-LUA_TTABLE"><code>LUA_TTABLE</code></a>,
-<a name="pdf-LUA_TFUNCTION"><code>LUA_TFUNCTION</code></a>,
-<a name="pdf-LUA_TUSERDATA"><code>LUA_TUSERDATA</code></a>,
-<a name="pdf-LUA_TTHREAD"><code>LUA_TTHREAD</code></a>,
-and
-<a name="pdf-LUA_TLIGHTUSERDATA"><code>LUA_TLIGHTUSERDATA</code></a>.
-
-
-
-
-
-<hr><h3><a name="lua_typename"><code>lua_typename</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>const char *lua_typename (lua_State *L, int tp);</pre>
-
-<p>
-Returns the name of the type encoded by the value <code>tp</code>,
-which must be one the values returned by <a href="#lua_type"><code>lua_type</code></a>.
-
-
-
-
-
-<hr><h3><a name="lua_Unsigned"><code>lua_Unsigned</code></a></h3>
-<pre>typedef unsigned long lua_Unsigned;</pre>
-
-<p>
-The type used by the Lua API to represent unsigned integral values.
-It must have at least 32 bits.
-
-
-<p>
-By default it is an <code>unsigned int</code> or an <code>unsigned long</code>,
-whichever can hold 32-bit values.
-
-
-
-
-
-<hr><h3><a name="lua_upvalueindex"><code>lua_upvalueindex</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_upvalueindex (int i);</pre>
-
-<p>
-Returns the pseudo-index that represents the <code>i</code>-th upvalue of
-the running function (see <a href="#4.4">§4.4</a>).
-
-
-
-
-
-<hr><h3><a name="lua_version"><code>lua_version</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>const lua_Number *lua_version (lua_State *L);</pre>
-
-<p>
-Returns the address of the version number stored in the Lua core.
-When called with a valid <a href="#lua_State"><code>lua_State</code></a>,
-returns the address of the version used to create that state.
-When called with <code>NULL</code>,
-returns the address of the version running the call.
-
-
-
-
-
-<hr><h3><a name="lua_Writer"><code>lua_Writer</code></a></h3>
-<pre>typedef int (*lua_Writer) (lua_State *L,
- const void* p,
- size_t sz,
- void* ud);</pre>
-
-<p>
-The type of the writer function used by <a href="#lua_dump"><code>lua_dump</code></a>.
-Every time it produces another piece of chunk,
-<a href="#lua_dump"><code>lua_dump</code></a> calls the writer,
-passing along the buffer to be written (<code>p</code>),
-its size (<code>sz</code>),
-and the <code>data</code> parameter supplied to <a href="#lua_dump"><code>lua_dump</code></a>.
-
-
-<p>
-The writer returns an error code:
-0 means no errors;
-any other value means an error and stops <a href="#lua_dump"><code>lua_dump</code></a> from
-calling the writer again.
-
-
-
-
-
-<hr><h3><a name="lua_xmove"><code>lua_xmove</code></a></h3><p>
-<span class="apii">[-?, +?, –]</span>
-<pre>void lua_xmove (lua_State *from, lua_State *to, int n);</pre>
-
-<p>
-Exchange values between different threads of the same state.
-
-
-<p>
-This function pops <code>n</code> values from the stack <code>from</code>,
-and pushes them onto the stack <code>to</code>.
-
-
-
-
-
-<hr><h3><a name="lua_yield"><code>lua_yield</code></a></h3><p>
-<span class="apii">[-?, +?, –]</span>
-<pre>int lua_yield (lua_State *L, int nresults);</pre>
-
-<p>
-This function is equivalent to <a href="#lua_yieldk"><code>lua_yieldk</code></a>,
-but it has no continuation (see <a href="#4.7">§4.7</a>).
-Therefore, when the thread resumes,
-it returns to the function that called
-the function calling <code>lua_yield</code>.
-
-
-
-
-
-<hr><h3><a name="lua_yieldk"><code>lua_yieldk</code></a></h3><p>
-<span class="apii">[-?, +?, –]</span>
-<pre>int lua_yieldk (lua_State *L, int nresults, int ctx, lua_CFunction k);</pre>
-
-<p>
-Yields a coroutine.
-
-
-<p>
-This function should only be called as the
-return expression of a C function, as follows:
-
-<pre>
- return lua_yieldk (L, n, i, k);
-</pre><p>
-When a C function calls <a href="#lua_yieldk"><code>lua_yieldk</code></a> in that way,
-the running coroutine suspends its execution,
-and the call to <a href="#lua_resume"><code>lua_resume</code></a> that started this coroutine returns.
-The parameter <code>nresults</code> is the number of values from the stack
-that are passed as results to <a href="#lua_resume"><code>lua_resume</code></a>.
-
-
-<p>
-When the coroutine is resumed again,
-Lua calls the given continuation function <code>k</code> to continue
-the execution of the C function that yielded (see <a href="#4.7">§4.7</a>).
-This continuation function receives the same stack
-from the previous function,
-with the results removed and
-replaced by the arguments passed to <a href="#lua_resume"><code>lua_resume</code></a>.
-Moreover,
-the continuation function may access the value <code>ctx</code>
-by calling <a href="#lua_getctx"><code>lua_getctx</code></a>.
-
-
-
-
-
-
-
-<h2>4.9 – <a name="4.9">The Debug Interface</a></h2>
-
-<p>
-Lua has no built-in debugging facilities.
-Instead, it offers a special interface
-by means of functions and <em>hooks</em>.
-This interface allows the construction of different
-kinds of debuggers, profilers, and other tools
-that need "inside information" from the interpreter.
-
-
-
-<hr><h3><a name="lua_Debug"><code>lua_Debug</code></a></h3>
-<pre>typedef struct lua_Debug {
- int event;
- const char *name; /* (n) */
- const char *namewhat; /* (n) */
- const char *what; /* (S) */
- const char *source; /* (S) */
- int currentline; /* (l) */
- int linedefined; /* (S) */
- int lastlinedefined; /* (S) */
- unsigned char nups; /* (u) number of upvalues */
- unsigned char nparams; /* (u) number of parameters */
- char isvararg; /* (u) */
- char istailcall; /* (t) */
- char short_src[LUA_IDSIZE]; /* (S) */
- /* private part */
- <em>other fields</em>
-} lua_Debug;</pre>
-
-<p>
-A structure used to carry different pieces of
-information about a function or an activation record.
-<a href="#lua_getstack"><code>lua_getstack</code></a> fills only the private part
-of this structure, for later use.
-To fill the other fields of <a href="#lua_Debug"><code>lua_Debug</code></a> with useful information,
-call <a href="#lua_getinfo"><code>lua_getinfo</code></a>.
-
-
-<p>
-The fields of <a href="#lua_Debug"><code>lua_Debug</code></a> have the following meaning:
-
-<ul>
-
-<li><b><code>source</code>: </b>
-the source of the chunk that created the function.
-If <code>source</code> starts with a '<code>@</code>',
-it means that the function was defined in a file where
-the file name follows the '<code>@</code>'.
-If <code>source</code> starts with a '<code>=</code>',
-the remainder of its contents describe the source in a user-dependent manner.
-Otherwise,
-the function was defined in a string where
-<code>source</code> is that string.
-</li>
-
-<li><b><code>short_src</code>: </b>
-a "printable" version of <code>source</code>, to be used in error messages.
-</li>
-
-<li><b><code>linedefined</code>: </b>
-the line number where the definition of the function starts.
-</li>
-
-<li><b><code>lastlinedefined</code>: </b>
-the line number where the definition of the function ends.
-</li>
-
-<li><b><code>what</code>: </b>
-the string <code>"Lua"</code> if the function is a Lua function,
-<code>"C"</code> if it is a C function,
-<code>"main"</code> if it is the main part of a chunk.
-</li>
-
-<li><b><code>currentline</code>: </b>
-the current line where the given function is executing.
-When no line information is available,
-<code>currentline</code> is set to -1.
-</li>
-
-<li><b><code>name</code>: </b>
-a reasonable name for the given function.
-Because functions in Lua are first-class values,
-they do not have a fixed name:
-some functions can be the value of multiple global variables,
-while others can be stored only in a table field.
-The <code>lua_getinfo</code> function checks how the function was
-called to find a suitable name.
-If it cannot find a name,
-then <code>name</code> is set to <code>NULL</code>.
-</li>
-
-<li><b><code>namewhat</code>: </b>
-explains the <code>name</code> field.
-The value of <code>namewhat</code> can be
-<code>"global"</code>, <code>"local"</code>, <code>"method"</code>,
-<code>"field"</code>, <code>"upvalue"</code>, or <code>""</code> (the empty string),
-according to how the function was called.
-(Lua uses the empty string when no other option seems to apply.)
-</li>
-
-<li><b><code>istailcall</code>: </b>
-true if this function invocation was called by a tail call.
-In this case, the caller of this level is not in the stack.
-</li>
-
-<li><b><code>nups</code>: </b>
-the number of upvalues of the function.
-</li>
-
-<li><b><code>nparams</code>: </b>
-the number of fixed parameters of the function
-(always 0 for C functions).
-</li>
-
-<li><b><code>isvararg</code>: </b>
-true if the function is a vararg function
-(always true for C functions).
-</li>
-
-</ul>
-
-
-
-
-<hr><h3><a name="lua_gethook"><code>lua_gethook</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_Hook lua_gethook (lua_State *L);</pre>
-
-<p>
-Returns the current hook function.
-
-
-
-
-
-<hr><h3><a name="lua_gethookcount"><code>lua_gethookcount</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_gethookcount (lua_State *L);</pre>
-
-<p>
-Returns the current hook count.
-
-
-
-
-
-<hr><h3><a name="lua_gethookmask"><code>lua_gethookmask</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_gethookmask (lua_State *L);</pre>
-
-<p>
-Returns the current hook mask.
-
-
-
-
-
-<hr><h3><a name="lua_getinfo"><code>lua_getinfo</code></a></h3><p>
-<span class="apii">[-(0|1), +(0|1|2), <em>e</em>]</span>
-<pre>int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);</pre>
-
-<p>
-Gets information about a specific function or function invocation.
-
-
-<p>
-To get information about a function invocation,
-the parameter <code>ar</code> must be a valid activation record that was
-filled by a previous call to <a href="#lua_getstack"><code>lua_getstack</code></a> or
-given as argument to a hook (see <a href="#lua_Hook"><code>lua_Hook</code></a>).
-
-
-<p>
-To get information about a function you push it onto the stack
-and start the <code>what</code> string with the character '<code>></code>'.
-(In that case,
-<code>lua_getinfo</code> pops the function from the top of the stack.)
-For instance, to know in which line a function <code>f</code> was defined,
-you can write the following code:
-
-<pre>
- lua_Debug ar;
- lua_getglobal(L, "f"); /* get global 'f' */
- lua_getinfo(L, ">S", &ar);
- printf("%d\n", ar.linedefined);
-</pre>
-
-<p>
-Each character in the string <code>what</code>
-selects some fields of the structure <code>ar</code> to be filled or
-a value to be pushed on the stack:
-
-<ul>
-
-<li><b>'<code>n</code>': </b> fills in the field <code>name</code> and <code>namewhat</code>;
-</li>
-
-<li><b>'<code>S</code>': </b>
-fills in the fields <code>source</code>, <code>short_src</code>,
-<code>linedefined</code>, <code>lastlinedefined</code>, and <code>what</code>;
-</li>
-
-<li><b>'<code>l</code>': </b> fills in the field <code>currentline</code>;
-</li>
-
-<li><b>'<code>t</code>': </b> fills in the field <code>istailcall</code>;
-</li>
-
-<li><b>'<code>u</code>': </b> fills in the fields
-<code>nups</code>, <code>nparams</code>, and <code>isvararg</code>;
-</li>
-
-<li><b>'<code>f</code>': </b>
-pushes onto the stack the function that is
-running at the given level;
-</li>
-
-<li><b>'<code>L</code>': </b>
-pushes onto the stack a table whose indices are the
-numbers of the lines that are valid on the function.
-(A <em>valid line</em> is a line with some associated code,
-that is, a line where you can put a break point.
-Non-valid lines include empty lines and comments.)
-</li>
-
-</ul>
-
-<p>
-This function returns 0 on error
-(for instance, an invalid option in <code>what</code>).
-
-
-
-
-
-<hr><h3><a name="lua_getlocal"><code>lua_getlocal</code></a></h3><p>
-<span class="apii">[-0, +(0|1), –]</span>
-<pre>const char *lua_getlocal (lua_State *L, lua_Debug *ar, int n);</pre>
-
-<p>
-Gets information about a local variable of
-a given activation record or a given function.
-
-
-<p>
-In the first case,
-the parameter <code>ar</code> must be a valid activation record that was
-filled by a previous call to <a href="#lua_getstack"><code>lua_getstack</code></a> or
-given as argument to a hook (see <a href="#lua_Hook"><code>lua_Hook</code></a>).
-The index <code>n</code> selects which local variable to inspect;
-see <a href="#pdf-debug.getlocal"><code>debug.getlocal</code></a> for details about variable indices
-and names.
-
-
-<p>
-<a href="#lua_getlocal"><code>lua_getlocal</code></a> pushes the variable's value onto the stack
-and returns its name.
-
-
-<p>
-In the second case, <code>ar</code> should be <code>NULL</code> and the function
-to be inspected must be at the top of the stack.
-In this case, only parameters of Lua functions are visible
-(as there is no information about what variables are active)
-and no values are pushed onto the stack.
-
-
-<p>
-Returns <code>NULL</code> (and pushes nothing)
-when the index is greater than
-the number of active local variables.
-
-
-
-
-
-<hr><h3><a name="lua_getstack"><code>lua_getstack</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_getstack (lua_State *L, int level, lua_Debug *ar);</pre>
-
-<p>
-Gets information about the interpreter runtime stack.
-
-
-<p>
-This function fills parts of a <a href="#lua_Debug"><code>lua_Debug</code></a> structure with
-an identification of the <em>activation record</em>
-of the function executing at a given level.
-Level 0 is the current running function,
-whereas level <em>n+1</em> is the function that has called level <em>n</em>
-(except for tail calls, which do not count on the stack).
-When there are no errors, <a href="#lua_getstack"><code>lua_getstack</code></a> returns 1;
-when called with a level greater than the stack depth,
-it returns 0.
-
-
-
-
-
-<hr><h3><a name="lua_getupvalue"><code>lua_getupvalue</code></a></h3><p>
-<span class="apii">[-0, +(0|1), –]</span>
-<pre>const char *lua_getupvalue (lua_State *L, int funcindex, int n);</pre>
-
-<p>
-Gets information about a closure's upvalue.
-(For Lua functions,
-upvalues are the external local variables that the function uses,
-and that are consequently included in its closure.)
-<a href="#lua_getupvalue"><code>lua_getupvalue</code></a> gets the index <code>n</code> of an upvalue,
-pushes the upvalue's value onto the stack,
-and returns its name.
-<code>funcindex</code> points to the closure in the stack.
-(Upvalues have no particular order,
-as they are active through the whole function.
-So, they are numbered in an arbitrary order.)
-
-
-<p>
-Returns <code>NULL</code> (and pushes nothing)
-when the index is greater than the number of upvalues.
-For C functions, this function uses the empty string <code>""</code>
-as a name for all upvalues.
-
-
-
-
-
-<hr><h3><a name="lua_Hook"><code>lua_Hook</code></a></h3>
-<pre>typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);</pre>
-
-<p>
-Type for debugging hook functions.
-
-
-<p>
-Whenever a hook is called, its <code>ar</code> argument has its field
-<code>event</code> set to the specific event that triggered the hook.
-Lua identifies these events with the following constants:
-<a name="pdf-LUA_HOOKCALL"><code>LUA_HOOKCALL</code></a>, <a name="pdf-LUA_HOOKRET"><code>LUA_HOOKRET</code></a>,
-<a name="pdf-LUA_HOOKTAILCALL"><code>LUA_HOOKTAILCALL</code></a>, <a name="pdf-LUA_HOOKLINE"><code>LUA_HOOKLINE</code></a>,
-and <a name="pdf-LUA_HOOKCOUNT"><code>LUA_HOOKCOUNT</code></a>.
-Moreover, for line events, the field <code>currentline</code> is also set.
-To get the value of any other field in <code>ar</code>,
-the hook must call <a href="#lua_getinfo"><code>lua_getinfo</code></a>.
-
-
-<p>
-For call events, <code>event</code> can be <code>LUA_HOOKCALL</code>,
-the normal value, or <code>LUA_HOOKTAILCALL</code>, for a tail call;
-in this case, there will be no corresponding return event.
-
-
-<p>
-While Lua is running a hook, it disables other calls to hooks.
-Therefore, if a hook calls back Lua to execute a function or a chunk,
-this execution occurs without any calls to hooks.
-
-
-<p>
-Hook functions cannot have continuations,
-that is, they cannot call <a href="#lua_yieldk"><code>lua_yieldk</code></a>,
-<a href="#lua_pcallk"><code>lua_pcallk</code></a>, or <a href="#lua_callk"><code>lua_callk</code></a> with a non-null <code>k</code>.
-
-
-<p>
-Hook functions can yield under the following conditions:
-Only count and line events can yield
-and they cannot yield any value;
-to yield a hook function must finish its execution
-calling <a href="#lua_yield"><code>lua_yield</code></a> with <code>nresults</code> equal to zero.
-
-
-
-
-
-<hr><h3><a name="lua_sethook"><code>lua_sethook</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>int lua_sethook (lua_State *L, lua_Hook f, int mask, int count);</pre>
-
-<p>
-Sets the debugging hook function.
-
-
-<p>
-Argument <code>f</code> is the hook function.
-<code>mask</code> specifies on which events the hook will be called:
-it is formed by a bitwise or of the constants
-<a name="pdf-LUA_MASKCALL"><code>LUA_MASKCALL</code></a>,
-<a name="pdf-LUA_MASKRET"><code>LUA_MASKRET</code></a>,
-<a name="pdf-LUA_MASKLINE"><code>LUA_MASKLINE</code></a>,
-and <a name="pdf-LUA_MASKCOUNT"><code>LUA_MASKCOUNT</code></a>.
-The <code>count</code> argument is only meaningful when the mask
-includes <code>LUA_MASKCOUNT</code>.
-For each event, the hook is called as explained below:
-
-<ul>
-
-<li><b>The call hook: </b> is called when the interpreter calls a function.
-The hook is called just after Lua enters the new function,
-before the function gets its arguments.
-</li>
-
-<li><b>The return hook: </b> is called when the interpreter returns from a function.
-The hook is called just before Lua leaves the function.
-There is no standard way to access the values
-to be returned by the function.
-</li>
-
-<li><b>The line hook: </b> is called when the interpreter is about to
-start the execution of a new line of code,
-or when it jumps back in the code (even to the same line).
-(This event only happens while Lua is executing a Lua function.)
-</li>
-
-<li><b>The count hook: </b> is called after the interpreter executes every
-<code>count</code> instructions.
-(This event only happens while Lua is executing a Lua function.)
-</li>
-
-</ul>
-
-<p>
-A hook is disabled by setting <code>mask</code> to zero.
-
-
-
-
-
-<hr><h3><a name="lua_setlocal"><code>lua_setlocal</code></a></h3><p>
-<span class="apii">[-(0|1), +0, –]</span>
-<pre>const char *lua_setlocal (lua_State *L, lua_Debug *ar, int n);</pre>
-
-<p>
-Sets the value of a local variable of a given activation record.
-Parameters <code>ar</code> and <code>n</code> are as in <a href="#lua_getlocal"><code>lua_getlocal</code></a>
-(see <a href="#lua_getlocal"><code>lua_getlocal</code></a>).
-<a href="#lua_setlocal"><code>lua_setlocal</code></a> assigns the value at the top of the stack
-to the variable and returns its name.
-It also pops the value from the stack.
-
-
-<p>
-Returns <code>NULL</code> (and pops nothing)
-when the index is greater than
-the number of active local variables.
-
-
-
-
-
-<hr><h3><a name="lua_setupvalue"><code>lua_setupvalue</code></a></h3><p>
-<span class="apii">[-(0|1), +0, –]</span>
-<pre>const char *lua_setupvalue (lua_State *L, int funcindex, int n);</pre>
-
-<p>
-Sets the value of a closure's upvalue.
-It assigns the value at the top of the stack
-to the upvalue and returns its name.
-It also pops the value from the stack.
-Parameters <code>funcindex</code> and <code>n</code> are as in the <a href="#lua_getupvalue"><code>lua_getupvalue</code></a>
-(see <a href="#lua_getupvalue"><code>lua_getupvalue</code></a>).
-
-
-<p>
-Returns <code>NULL</code> (and pops nothing)
-when the index is greater than the number of upvalues.
-
-
-
-
-
-<hr><h3><a name="lua_upvalueid"><code>lua_upvalueid</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void *lua_upvalueid (lua_State *L, int funcindex, int n);</pre>
-
-<p>
-Returns an unique identifier for the upvalue numbered <code>n</code>
-from the closure at index <code>funcindex</code>.
-Parameters <code>funcindex</code> and <code>n</code> are as in the <a href="#lua_getupvalue"><code>lua_getupvalue</code></a>
-(see <a href="#lua_getupvalue"><code>lua_getupvalue</code></a>)
-(but <code>n</code> cannot be greater than the number of upvalues).
-
-
-<p>
-These unique identifiers allow a program to check whether different
-closures share upvalues.
-Lua closures that share an upvalue
-(that is, that access a same external local variable)
-will return identical ids for those upvalue indices.
-
-
-
-
-
-<hr><h3><a name="lua_upvaluejoin"><code>lua_upvaluejoin</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void lua_upvaluejoin (lua_State *L, int funcindex1, int n1,
- int funcindex2, int n2);</pre>
-
-<p>
-Make the <code>n1</code>-th upvalue of the Lua closure at index <code>funcindex1</code>
-refer to the <code>n2</code>-th upvalue of the Lua closure at index <code>funcindex2</code>.
-
-
-
-
-
-
-
-<h1>5 – <a name="5">The Auxiliary Library</a></h1>
-
-<p>
-
-The <em>auxiliary library</em> provides several convenient functions
-to interface C with Lua.
-While the basic API provides the primitive functions for all
-interactions between C and Lua,
-the auxiliary library provides higher-level functions for some
-common tasks.
-
-
-<p>
-All functions and types from the auxiliary library
-are defined in header file <code>lauxlib.h</code> and
-have a prefix <code>luaL_</code>.
-
-
-<p>
-All functions in the auxiliary library are built on
-top of the basic API,
-and so they provide nothing that cannot be done with that API.
-Nevertheless, the use of the auxiliary library ensures
-more consistency to your code.
-
-
-<p>
-Several functions in the auxiliary library use internally some
-extra stack slots.
-When a function in the auxiliary library uses less than five slots,
-it does not check the stack size;
-it simply assumes that there are enough slots.
-
-
-<p>
-Several functions in the auxiliary library are used to
-check C function arguments.
-Because the error message is formatted for arguments
-(e.g., "<code>bad argument #1</code>"),
-you should not use these functions for other stack values.
-
-
-<p>
-Functions called <code>luaL_check*</code>
-always throw an error if the check is not satisfied.
-
-
-
-<h2>5.1 – <a name="5.1">Functions and Types</a></h2>
-
-<p>
-Here we list all functions and types from the auxiliary library
-in alphabetical order.
-
-
-
-<hr><h3><a name="luaL_addchar"><code>luaL_addchar</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>void luaL_addchar (luaL_Buffer *B, char c);</pre>
-
-<p>
-Adds the byte <code>c</code> to the buffer <code>B</code>
-(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_addlstring"><code>luaL_addlstring</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l);</pre>
-
-<p>
-Adds the string pointed to by <code>s</code> with length <code>l</code> to
-the buffer <code>B</code>
-(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
-The string can contain embedded zeros.
-
-
-
-
-
-<hr><h3><a name="luaL_addsize"><code>luaL_addsize</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>void luaL_addsize (luaL_Buffer *B, size_t n);</pre>
-
-<p>
-Adds to the buffer <code>B</code> (see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>)
-a string of length <code>n</code> previously copied to the
-buffer area (see <a href="#luaL_prepbuffer"><code>luaL_prepbuffer</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_addstring"><code>luaL_addstring</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>void luaL_addstring (luaL_Buffer *B, const char *s);</pre>
-
-<p>
-Adds the zero-terminated string pointed to by <code>s</code>
-to the buffer <code>B</code>
-(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
-The string cannot contain embedded zeros.
-
-
-
-
-
-<hr><h3><a name="luaL_addvalue"><code>luaL_addvalue</code></a></h3><p>
-<span class="apii">[-1, +?, <em>e</em>]</span>
-<pre>void luaL_addvalue (luaL_Buffer *B);</pre>
-
-<p>
-Adds the value at the top of the stack
-to the buffer <code>B</code>
-(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
-Pops the value.
-
-
-<p>
-This is the only function on string buffers that can (and must)
-be called with an extra element on the stack,
-which is the value to be added to the buffer.
-
-
-
-
-
-<hr><h3><a name="luaL_argcheck"><code>luaL_argcheck</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>void luaL_argcheck (lua_State *L,
- int cond,
- int arg,
- const char *extramsg);</pre>
-
-<p>
-Checks whether <code>cond</code> is true.
-If not, raises an error with a standard message.
-
-
-
-
-
-<hr><h3><a name="luaL_argerror"><code>luaL_argerror</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>int luaL_argerror (lua_State *L, int arg, const char *extramsg);</pre>
-
-<p>
-Raises an error with a standard message
-that includes <code>extramsg</code> as a comment.
-
-
-<p>
-This function never returns,
-but it is an idiom to use it in C functions
-as <code>return luaL_argerror(<em>args</em>)</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_Buffer"><code>luaL_Buffer</code></a></h3>
-<pre>typedef struct luaL_Buffer luaL_Buffer;</pre>
-
-<p>
-Type for a <em>string buffer</em>.
-
-
-<p>
-A string buffer allows C code to build Lua strings piecemeal.
-Its pattern of use is as follows:
-
-<ul>
-
-<li>First declare a variable <code>b</code> of type <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>.</li>
-
-<li>Then initialize it with a call <code>luaL_buffinit(L, &b)</code>.</li>
-
-<li>
-Then add string pieces to the buffer calling any of
-the <code>luaL_add*</code> functions.
-</li>
-
-<li>
-Finish by calling <code>luaL_pushresult(&b)</code>.
-This call leaves the final string on the top of the stack.
-</li>
-
-</ul>
-
-<p>
-If you know beforehand the total size of the resulting string,
-you can use the buffer like this:
-
-<ul>
-
-<li>First declare a variable <code>b</code> of type <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>.</li>
-
-<li>Then initialize it and preallocate a space of
-size <code>sz</code> with a call <code>luaL_buffinitsize(L, &b, sz)</code>.</li>
-
-<li>Then copy the string into that space.</li>
-
-<li>
-Finish by calling <code>luaL_pushresultsize(&b, sz)</code>,
-where <code>sz</code> is the total size of the resulting string
-copied into that space.
-</li>
-
-</ul>
-
-<p>
-During its normal operation,
-a string buffer uses a variable number of stack slots.
-So, while using a buffer, you cannot assume that you know where
-the top of the stack is.
-You can use the stack between successive calls to buffer operations
-as long as that use is balanced;
-that is,
-when you call a buffer operation,
-the stack is at the same level
-it was immediately after the previous buffer operation.
-(The only exception to this rule is <a href="#luaL_addvalue"><code>luaL_addvalue</code></a>.)
-After calling <a href="#luaL_pushresult"><code>luaL_pushresult</code></a> the stack is back to its
-level when the buffer was initialized,
-plus the final string on its top.
-
-
-
-
-
-<hr><h3><a name="luaL_buffinit"><code>luaL_buffinit</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void luaL_buffinit (lua_State *L, luaL_Buffer *B);</pre>
-
-<p>
-Initializes a buffer <code>B</code>.
-This function does not allocate any space;
-the buffer must be declared as a variable
-(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_buffinitsize"><code>luaL_buffinitsize</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>char *luaL_buffinitsize (lua_State *L, luaL_Buffer *B, size_t sz);</pre>
-
-<p>
-Equivalent to the sequence
-<a href="#luaL_buffinit"><code>luaL_buffinit</code></a>, <a href="#luaL_prepbuffsize"><code>luaL_prepbuffsize</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_callmeta"><code>luaL_callmeta</code></a></h3><p>
-<span class="apii">[-0, +(0|1), <em>e</em>]</span>
-<pre>int luaL_callmeta (lua_State *L, int obj, const char *e);</pre>
-
-<p>
-Calls a metamethod.
-
-
-<p>
-If the object at index <code>obj</code> has a metatable and this
-metatable has a field <code>e</code>,
-this function calls this field passing the object as its only argument.
-In this case this function returns true and pushes onto the
-stack the value returned by the call.
-If there is no metatable or no metamethod,
-this function returns false (without pushing any value on the stack).
-
-
-
-
-
-<hr><h3><a name="luaL_checkany"><code>luaL_checkany</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>void luaL_checkany (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function has an argument
-of any type (including <b>nil</b>) at position <code>arg</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_checkint"><code>luaL_checkint</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>int luaL_checkint (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a number
-and returns this number cast to an <code>int</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_checkinteger"><code>luaL_checkinteger</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>lua_Integer luaL_checkinteger (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a number
-and returns this number cast to a <a href="#lua_Integer"><code>lua_Integer</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_checklong"><code>luaL_checklong</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>long luaL_checklong (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a number
-and returns this number cast to a <code>long</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_checklstring"><code>luaL_checklstring</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>const char *luaL_checklstring (lua_State *L, int arg, size_t *l);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a string
-and returns this string;
-if <code>l</code> is not <code>NULL</code> fills <code>*l</code>
-with the string's length.
-
-
-<p>
-This function uses <a href="#lua_tolstring"><code>lua_tolstring</code></a> to get its result,
-so all conversions and caveats of that function apply here.
-
-
-
-
-
-<hr><h3><a name="luaL_checknumber"><code>luaL_checknumber</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>lua_Number luaL_checknumber (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a number
-and returns this number.
-
-
-
-
-
-<hr><h3><a name="luaL_checkoption"><code>luaL_checkoption</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>int luaL_checkoption (lua_State *L,
- int arg,
- const char *def,
- const char *const lst[]);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a string and
-searches for this string in the array <code>lst</code>
-(which must be NULL-terminated).
-Returns the index in the array where the string was found.
-Raises an error if the argument is not a string or
-if the string cannot be found.
-
-
-<p>
-If <code>def</code> is not <code>NULL</code>,
-the function uses <code>def</code> as a default value when
-there is no argument <code>arg</code> or when this argument is <b>nil</b>.
-
-
-<p>
-This is a useful function for mapping strings to C enums.
-(The usual convention in Lua libraries is
-to use strings instead of numbers to select options.)
-
-
-
-
-
-<hr><h3><a name="luaL_checkstack"><code>luaL_checkstack</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>void luaL_checkstack (lua_State *L, int sz, const char *msg);</pre>
-
-<p>
-Grows the stack size to <code>top + sz</code> elements,
-raising an error if the stack cannot grow to that size.
-<code>msg</code> is an additional text to go into the error message
-(or <code>NULL</code> for no additional text).
-
-
-
-
-
-<hr><h3><a name="luaL_checkstring"><code>luaL_checkstring</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>const char *luaL_checkstring (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a string
-and returns this string.
-
-
-<p>
-This function uses <a href="#lua_tolstring"><code>lua_tolstring</code></a> to get its result,
-so all conversions and caveats of that function apply here.
-
-
-
-
-
-<hr><h3><a name="luaL_checktype"><code>luaL_checktype</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>void luaL_checktype (lua_State *L, int arg, int t);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> has type <code>t</code>.
-See <a href="#lua_type"><code>lua_type</code></a> for the encoding of types for <code>t</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_checkudata"><code>luaL_checkudata</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>void *luaL_checkudata (lua_State *L, int arg, const char *tname);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a userdata
-of the type <code>tname</code> (see <a href="#luaL_newmetatable"><code>luaL_newmetatable</code></a>) and
-returns the userdata address (see <a href="#lua_touserdata"><code>lua_touserdata</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_checkunsigned"><code>luaL_checkunsigned</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>lua_Unsigned luaL_checkunsigned (lua_State *L, int arg);</pre>
-
-<p>
-Checks whether the function argument <code>arg</code> is a number
-and returns this number cast to a <a href="#lua_Unsigned"><code>lua_Unsigned</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_checkversion"><code>luaL_checkversion</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void luaL_checkversion (lua_State *L);</pre>
-
-<p>
-Checks whether the core running the call,
-the core that created the Lua state,
-and the code making the call are all using the same version of Lua.
-Also checks whether the core running the call
-and the core that created the Lua state
-are using the same address space.
-
-
-
-
-
-<hr><h3><a name="luaL_dofile"><code>luaL_dofile</code></a></h3><p>
-<span class="apii">[-0, +?, <em>e</em>]</span>
-<pre>int luaL_dofile (lua_State *L, const char *filename);</pre>
-
-<p>
-Loads and runs the given file.
-It is defined as the following macro:
-
-<pre>
- (luaL_loadfile(L, filename) || lua_pcall(L, 0, LUA_MULTRET, 0))
-</pre><p>
-It returns false if there are no errors
-or true in case of errors.
-
-
-
-
-
-<hr><h3><a name="luaL_dostring"><code>luaL_dostring</code></a></h3><p>
-<span class="apii">[-0, +?, –]</span>
-<pre>int luaL_dostring (lua_State *L, const char *str);</pre>
-
-<p>
-Loads and runs the given string.
-It is defined as the following macro:
-
-<pre>
- (luaL_loadstring(L, str) || lua_pcall(L, 0, LUA_MULTRET, 0))
-</pre><p>
-It returns false if there are no errors
-or true in case of errors.
-
-
-
-
-
-<hr><h3><a name="luaL_error"><code>luaL_error</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>int luaL_error (lua_State *L, const char *fmt, ...);</pre>
-
-<p>
-Raises an error.
-The error message format is given by <code>fmt</code>
-plus any extra arguments,
-following the same rules of <a href="#lua_pushfstring"><code>lua_pushfstring</code></a>.
-It also adds at the beginning of the message the file name and
-the line number where the error occurred,
-if this information is available.
-
-
-<p>
-This function never returns,
-but it is an idiom to use it in C functions
-as <code>return luaL_error(<em>args</em>)</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_execresult"><code>luaL_execresult</code></a></h3><p>
-<span class="apii">[-0, +3, <em>e</em>]</span>
-<pre>int luaL_execresult (lua_State *L, int stat);</pre>
-
-<p>
-This function produces the return values for
-process-related functions in the standard library
-(<a href="#pdf-os.execute"><code>os.execute</code></a> and <a href="#pdf-io.close"><code>io.close</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_fileresult"><code>luaL_fileresult</code></a></h3><p>
-<span class="apii">[-0, +(1|3), <em>e</em>]</span>
-<pre>int luaL_fileresult (lua_State *L, int stat, const char *fname);</pre>
-
-<p>
-This function produces the return values for
-file-related functions in the standard library
-(<a href="#pdf-io.open"><code>io.open</code></a>, <a href="#pdf-os.rename"><code>os.rename</code></a>, <a href="#pdf-file:seek"><code>file:seek</code></a>, etc.).
-
-
-
-
-
-<hr><h3><a name="luaL_getmetafield"><code>luaL_getmetafield</code></a></h3><p>
-<span class="apii">[-0, +(0|1), <em>e</em>]</span>
-<pre>int luaL_getmetafield (lua_State *L, int obj, const char *e);</pre>
-
-<p>
-Pushes onto the stack the field <code>e</code> from the metatable
-of the object at index <code>obj</code>.
-If the object does not have a metatable,
-or if the metatable does not have this field,
-returns false and pushes nothing.
-
-
-
-
-
-<hr><h3><a name="luaL_getmetatable"><code>luaL_getmetatable</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>void luaL_getmetatable (lua_State *L, const char *tname);</pre>
-
-<p>
-Pushes onto the stack the metatable associated with name <code>tname</code>
-in the registry (see <a href="#luaL_newmetatable"><code>luaL_newmetatable</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_getsubtable"><code>luaL_getsubtable</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>int luaL_getsubtable (lua_State *L, int idx, const char *fname);</pre>
-
-<p>
-Ensures that the value <code>t[fname]</code>,
-where <code>t</code> is the value at index <code>idx</code>,
-is a table,
-and pushes that table onto the stack.
-Returns true if it finds a previous table there
-and false if it creates a new table.
-
-
-
-
-
-<hr><h3><a name="luaL_gsub"><code>luaL_gsub</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *luaL_gsub (lua_State *L,
- const char *s,
- const char *p,
- const char *r);</pre>
-
-<p>
-Creates a copy of string <code>s</code> by replacing
-any occurrence of the string <code>p</code>
-with the string <code>r</code>.
-Pushes the resulting string on the stack and returns it.
-
-
-
-
-
-<hr><h3><a name="luaL_len"><code>luaL_len</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>int luaL_len (lua_State *L, int index);</pre>
-
-<p>
-Returns the "length" of the value at the given index
-as a number;
-it is equivalent to the '<code>#</code>' operator in Lua (see <a href="#3.4.6">§3.4.6</a>).
-Raises an error if the result of the operation is not a number.
-(This case only can happen through metamethods.)
-
-
-
-
-
-<hr><h3><a name="luaL_loadbuffer"><code>luaL_loadbuffer</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>int luaL_loadbuffer (lua_State *L,
- const char *buff,
- size_t sz,
- const char *name);</pre>
-
-<p>
-Equivalent to <a href="#luaL_loadbufferx"><code>luaL_loadbufferx</code></a> with <code>mode</code> equal to <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_loadbufferx"><code>luaL_loadbufferx</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>int luaL_loadbufferx (lua_State *L,
- const char *buff,
- size_t sz,
- const char *name,
- const char *mode);</pre>
-
-<p>
-Loads a buffer as a Lua chunk.
-This function uses <a href="#lua_load"><code>lua_load</code></a> to load the chunk in the
-buffer pointed to by <code>buff</code> with size <code>sz</code>.
-
-
-<p>
-This function returns the same results as <a href="#lua_load"><code>lua_load</code></a>.
-<code>name</code> is the chunk name,
-used for debug information and error messages.
-The string <code>mode</code> works as in function <a href="#lua_load"><code>lua_load</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_loadfile"><code>luaL_loadfile</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>int luaL_loadfile (lua_State *L, const char *filename);</pre>
-
-<p>
-Equivalent to <a href="#luaL_loadfilex"><code>luaL_loadfilex</code></a> with <code>mode</code> equal to <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_loadfilex"><code>luaL_loadfilex</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>int luaL_loadfilex (lua_State *L, const char *filename,
- const char *mode);</pre>
-
-<p>
-Loads a file as a Lua chunk.
-This function uses <a href="#lua_load"><code>lua_load</code></a> to load the chunk in the file
-named <code>filename</code>.
-If <code>filename</code> is <code>NULL</code>,
-then it loads from the standard input.
-The first line in the file is ignored if it starts with a <code>#</code>.
-
-
-<p>
-The string <code>mode</code> works as in function <a href="#lua_load"><code>lua_load</code></a>.
-
-
-<p>
-This function returns the same results as <a href="#lua_load"><code>lua_load</code></a>,
-but it has an extra error code <a name="pdf-LUA_ERRFILE"><code>LUA_ERRFILE</code></a>
-if it cannot open/read the file or the file has a wrong mode.
-
-
-<p>
-As <a href="#lua_load"><code>lua_load</code></a>, this function only loads the chunk;
-it does not run it.
-
-
-
-
-
-<hr><h3><a name="luaL_loadstring"><code>luaL_loadstring</code></a></h3><p>
-<span class="apii">[-0, +1, –]</span>
-<pre>int luaL_loadstring (lua_State *L, const char *s);</pre>
-
-<p>
-Loads a string as a Lua chunk.
-This function uses <a href="#lua_load"><code>lua_load</code></a> to load the chunk in
-the zero-terminated string <code>s</code>.
-
-
-<p>
-This function returns the same results as <a href="#lua_load"><code>lua_load</code></a>.
-
-
-<p>
-Also as <a href="#lua_load"><code>lua_load</code></a>, this function only loads the chunk;
-it does not run it.
-
-
-
-
-
-<hr><h3><a name="luaL_newlib"><code>luaL_newlib</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void luaL_newlib (lua_State *L, const luaL_Reg *l);</pre>
-
-<p>
-Creates a new table and registers there
-the functions in list <code>l</code>.
-It is implemented as the following macro:
-
-<pre>
- (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0))
-</pre>
-
-
-
-
-<hr><h3><a name="luaL_newlibtable"><code>luaL_newlibtable</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void luaL_newlibtable (lua_State *L, const luaL_Reg l[]);</pre>
-
-<p>
-Creates a new table with a size optimized
-to store all entries in the array <code>l</code>
-(but does not actually store them).
-It is intended to be used in conjunction with <a href="#luaL_setfuncs"><code>luaL_setfuncs</code></a>
-(see <a href="#luaL_newlib"><code>luaL_newlib</code></a>).
-
-
-<p>
-It is implemented as a macro.
-The array <code>l</code> must be the actual array,
-not a pointer to it.
-
-
-
-
-
-<hr><h3><a name="luaL_newmetatable"><code>luaL_newmetatable</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>int luaL_newmetatable (lua_State *L, const char *tname);</pre>
-
-<p>
-If the registry already has the key <code>tname</code>,
-returns 0.
-Otherwise,
-creates a new table to be used as a metatable for userdata,
-adds it to the registry with key <code>tname</code>,
-and returns 1.
-
-
-<p>
-In both cases pushes onto the stack the final value associated
-with <code>tname</code> in the registry.
-
-
-
-
-
-<hr><h3><a name="luaL_newstate"><code>luaL_newstate</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>lua_State *luaL_newstate (void);</pre>
-
-<p>
-Creates a new Lua state.
-It calls <a href="#lua_newstate"><code>lua_newstate</code></a> with an
-allocator based on the standard C <code>realloc</code> function
-and then sets a panic function (see <a href="#4.6">§4.6</a>) that prints
-an error message to the standard error output in case of fatal
-errors.
-
-
-<p>
-Returns the new state,
-or <code>NULL</code> if there is a memory allocation error.
-
-
-
-
-
-<hr><h3><a name="luaL_openlibs"><code>luaL_openlibs</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>void luaL_openlibs (lua_State *L);</pre>
-
-<p>
-Opens all standard Lua libraries into the given state.
-
-
-
-
-
-<hr><h3><a name="luaL_optint"><code>luaL_optint</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>int luaL_optint (lua_State *L, int arg, int d);</pre>
-
-<p>
-If the function argument <code>arg</code> is a number,
-returns this number cast to an <code>int</code>.
-If this argument is absent or is <b>nil</b>,
-returns <code>d</code>.
-Otherwise, raises an error.
-
-
-
-
-
-<hr><h3><a name="luaL_optinteger"><code>luaL_optinteger</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>lua_Integer luaL_optinteger (lua_State *L,
- int arg,
- lua_Integer d);</pre>
-
-<p>
-If the function argument <code>arg</code> is a number,
-returns this number cast to a <a href="#lua_Integer"><code>lua_Integer</code></a>.
-If this argument is absent or is <b>nil</b>,
-returns <code>d</code>.
-Otherwise, raises an error.
-
-
-
-
-
-<hr><h3><a name="luaL_optlong"><code>luaL_optlong</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>long luaL_optlong (lua_State *L, int arg, long d);</pre>
-
-<p>
-If the function argument <code>arg</code> is a number,
-returns this number cast to a <code>long</code>.
-If this argument is absent or is <b>nil</b>,
-returns <code>d</code>.
-Otherwise, raises an error.
-
-
-
-
-
-<hr><h3><a name="luaL_optlstring"><code>luaL_optlstring</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>const char *luaL_optlstring (lua_State *L,
- int arg,
- const char *d,
- size_t *l);</pre>
-
-<p>
-If the function argument <code>arg</code> is a string,
-returns this string.
-If this argument is absent or is <b>nil</b>,
-returns <code>d</code>.
-Otherwise, raises an error.
-
-
-<p>
-If <code>l</code> is not <code>NULL</code>,
-fills the position <code>*l</code> with the result's length.
-
-
-
-
-
-<hr><h3><a name="luaL_optnumber"><code>luaL_optnumber</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>lua_Number luaL_optnumber (lua_State *L, int arg, lua_Number d);</pre>
-
-<p>
-If the function argument <code>arg</code> is a number,
-returns this number.
-If this argument is absent or is <b>nil</b>,
-returns <code>d</code>.
-Otherwise, raises an error.
-
-
-
-
-
-<hr><h3><a name="luaL_optstring"><code>luaL_optstring</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>const char *luaL_optstring (lua_State *L,
- int arg,
- const char *d);</pre>
-
-<p>
-If the function argument <code>arg</code> is a string,
-returns this string.
-If this argument is absent or is <b>nil</b>,
-returns <code>d</code>.
-Otherwise, raises an error.
-
-
-
-
-
-<hr><h3><a name="luaL_optunsigned"><code>luaL_optunsigned</code></a></h3><p>
-<span class="apii">[-0, +0, <em>v</em>]</span>
-<pre>lua_Unsigned luaL_optunsigned (lua_State *L,
- int arg,
- lua_Unsigned u);</pre>
-
-<p>
-If the function argument <code>arg</code> is a number,
-returns this number cast to a <a href="#lua_Unsigned"><code>lua_Unsigned</code></a>.
-If this argument is absent or is <b>nil</b>,
-returns <code>u</code>.
-Otherwise, raises an error.
-
-
-
-
-
-<hr><h3><a name="luaL_prepbuffer"><code>luaL_prepbuffer</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>char *luaL_prepbuffer (luaL_Buffer *B);</pre>
-
-<p>
-Equivalent to <a href="#luaL_prepbuffsize"><code>luaL_prepbuffsize</code></a>
-with the predefined size <a name="pdf-LUAL_BUFFERSIZE"><code>LUAL_BUFFERSIZE</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_prepbuffsize"><code>luaL_prepbuffsize</code></a></h3><p>
-<span class="apii">[-?, +?, <em>e</em>]</span>
-<pre>char *luaL_prepbuffsize (luaL_Buffer *B, size_t sz);</pre>
-
-<p>
-Returns an address to a space of size <code>sz</code>
-where you can copy a string to be added to buffer <code>B</code>
-(see <a href="#luaL_Buffer"><code>luaL_Buffer</code></a>).
-After copying the string into this space you must call
-<a href="#luaL_addsize"><code>luaL_addsize</code></a> with the size of the string to actually add
-it to the buffer.
-
-
-
-
-
-<hr><h3><a name="luaL_pushresult"><code>luaL_pushresult</code></a></h3><p>
-<span class="apii">[-?, +1, <em>e</em>]</span>
-<pre>void luaL_pushresult (luaL_Buffer *B);</pre>
-
-<p>
-Finishes the use of buffer <code>B</code> leaving the final string on
-the top of the stack.
-
-
-
-
-
-<hr><h3><a name="luaL_pushresultsize"><code>luaL_pushresultsize</code></a></h3><p>
-<span class="apii">[-?, +1, <em>e</em>]</span>
-<pre>void luaL_pushresultsize (luaL_Buffer *B, size_t sz);</pre>
-
-<p>
-Equivalent to the sequence <a href="#luaL_addsize"><code>luaL_addsize</code></a>, <a href="#luaL_pushresult"><code>luaL_pushresult</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_ref"><code>luaL_ref</code></a></h3><p>
-<span class="apii">[-1, +0, <em>e</em>]</span>
-<pre>int luaL_ref (lua_State *L, int t);</pre>
-
-<p>
-Creates and returns a <em>reference</em>,
-in the table at index <code>t</code>,
-for the object at the top of the stack (and pops the object).
-
-
-<p>
-A reference is a unique integer key.
-As long as you do not manually add integer keys into table <code>t</code>,
-<a href="#luaL_ref"><code>luaL_ref</code></a> ensures the uniqueness of the key it returns.
-You can retrieve an object referred by reference <code>r</code>
-by calling <code>lua_rawgeti(L, t, r)</code>.
-Function <a href="#luaL_unref"><code>luaL_unref</code></a> frees a reference and its associated object.
-
-
-<p>
-If the object at the top of the stack is <b>nil</b>,
-<a href="#luaL_ref"><code>luaL_ref</code></a> returns the constant <a name="pdf-LUA_REFNIL"><code>LUA_REFNIL</code></a>.
-The constant <a name="pdf-LUA_NOREF"><code>LUA_NOREF</code></a> is guaranteed to be different
-from any reference returned by <a href="#luaL_ref"><code>luaL_ref</code></a>.
-
-
-
-
-
-<hr><h3><a name="luaL_Reg"><code>luaL_Reg</code></a></h3>
-<pre>typedef struct luaL_Reg {
- const char *name;
- lua_CFunction func;
-} luaL_Reg;</pre>
-
-<p>
-Type for arrays of functions to be registered by
-<a href="#luaL_setfuncs"><code>luaL_setfuncs</code></a>.
-<code>name</code> is the function name and <code>func</code> is a pointer to
-the function.
-Any array of <a href="#luaL_Reg"><code>luaL_Reg</code></a> must end with an sentinel entry
-in which both <code>name</code> and <code>func</code> are <code>NULL</code>.
-
-
-
-
-
-<hr><h3><a name="luaL_requiref"><code>luaL_requiref</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void luaL_requiref (lua_State *L, const char *modname,
- lua_CFunction openf, int glb);</pre>
-
-<p>
-Calls function <code>openf</code> with string <code>modname</code> as an argument
-and sets the call result in <code>package.loaded[modname]</code>,
-as if that function has been called through <a href="#pdf-require"><code>require</code></a>.
-
-
-<p>
-If <code>glb</code> is true,
-also stores the result into global <code>modname</code>.
-
-
-<p>
-Leaves a copy of that result on the stack.
-
-
-
-
-
-<hr><h3><a name="luaL_setfuncs"><code>luaL_setfuncs</code></a></h3><p>
-<span class="apii">[-nup, +0, <em>e</em>]</span>
-<pre>void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup);</pre>
-
-<p>
-Registers all functions in the array <code>l</code>
-(see <a href="#luaL_Reg"><code>luaL_Reg</code></a>) into the table on the top of the stack
-(below optional upvalues, see next).
-
-
-<p>
-When <code>nup</code> is not zero,
-all functions are created sharing <code>nup</code> upvalues,
-which must be previously pushed on the stack
-on top of the library table.
-These values are popped from the stack after the registration.
-
-
-
-
-
-<hr><h3><a name="luaL_setmetatable"><code>luaL_setmetatable</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void luaL_setmetatable (lua_State *L, const char *tname);</pre>
-
-<p>
-Sets the metatable of the object at the top of the stack
-as the metatable associated with name <code>tname</code>
-in the registry (see <a href="#luaL_newmetatable"><code>luaL_newmetatable</code></a>).
-
-
-
-
-
-<hr><h3><a name="luaL_testudata"><code>luaL_testudata</code></a></h3><p>
-<span class="apii">[-0, +0, <em>e</em>]</span>
-<pre>void *luaL_testudata (lua_State *L, int arg, const char *tname);</pre>
-
-<p>
-This function works like <a href="#luaL_checkudata"><code>luaL_checkudata</code></a>,
-except that, when the test fails,
-it returns <code>NULL</code> instead of throwing an error.
-
-
-
-
-
-<hr><h3><a name="luaL_tolstring"><code>luaL_tolstring</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>const char *luaL_tolstring (lua_State *L, int idx, size_t *len);</pre>
-
-<p>
-Converts any Lua value at the given index to a C string
-in a reasonable format.
-The resulting string is pushed onto the stack and also
-returned by the function.
-If <code>len</code> is not <code>NULL</code>,
-the function also sets <code>*len</code> with the string length.
-
-
-<p>
-If the value has a metatable with a <code>"__tostring"</code> field,
-then <code>luaL_tolstring</code> calls the corresponding metamethod
-with the value as argument,
-and uses the result of the call as its result.
-
-
-
-
-
-<hr><h3><a name="luaL_traceback"><code>luaL_traceback</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
- int level);</pre>
-
-<p>
-Creates and pushes a traceback of the stack <code>L1</code>.
-If <code>msg</code> is not <code>NULL</code> it is appended
-at the beginning of the traceback.
-The <code>level</code> parameter tells at which level
-to start the traceback.
-
-
-
-
-
-<hr><h3><a name="luaL_typename"><code>luaL_typename</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>const char *luaL_typename (lua_State *L, int index);</pre>
-
-<p>
-Returns the name of the type of the value at the given index.
-
-
-
-
-
-<hr><h3><a name="luaL_unref"><code>luaL_unref</code></a></h3><p>
-<span class="apii">[-0, +0, –]</span>
-<pre>void luaL_unref (lua_State *L, int t, int ref);</pre>
-
-<p>
-Releases reference <code>ref</code> from the table at index <code>t</code>
-(see <a href="#luaL_ref"><code>luaL_ref</code></a>).
-The entry is removed from the table,
-so that the referred object can be collected.
-The reference <code>ref</code> is also freed to be used again.
-
-
-<p>
-If <code>ref</code> is <a href="#pdf-LUA_NOREF"><code>LUA_NOREF</code></a> or <a href="#pdf-LUA_REFNIL"><code>LUA_REFNIL</code></a>,
-<a href="#luaL_unref"><code>luaL_unref</code></a> does nothing.
-
-
-
-
-
-<hr><h3><a name="luaL_where"><code>luaL_where</code></a></h3><p>
-<span class="apii">[-0, +1, <em>e</em>]</span>
-<pre>void luaL_where (lua_State *L, int lvl);</pre>
-
-<p>
-Pushes onto the stack a string identifying the current position
-of the control at level <code>lvl</code> in the call stack.
-Typically this string has the following format:
-
-<pre>
- <em>chunkname</em>:<em>currentline</em>:
-</pre><p>
-Level 0 is the running function,
-level 1 is the function that called the running function,
-etc.
-
-
-<p>
-This function is used to build a prefix for error messages.
-
-
-
-
-
-
-
-<h1>6 – <a name="6">Standard Libraries</a></h1>
-
-<p>
-The standard Lua libraries provide useful functions
-that are implemented directly through the C API.
-Some of these functions provide essential services to the language
-(e.g., <a href="#pdf-type"><code>type</code></a> and <a href="#pdf-getmetatable"><code>getmetatable</code></a>);
-others provide access to "outside" services (e.g., I/O);
-and others could be implemented in Lua itself,
-but are quite useful or have critical performance requirements that
-deserve an implementation in C (e.g., <a href="#pdf-table.sort"><code>table.sort</code></a>).
-
-
-<p>
-All libraries are implemented through the official C API
-and are provided as separate C modules.
-Currently, Lua has the following standard libraries:
-
-<ul>
-
-<li>basic library (<a href="#6.1">§6.1</a>);</li>
-
-<li>coroutine library (<a href="#6.2">§6.2</a>);</li>
-
-<li>package library (<a href="#6.3">§6.3</a>);</li>
-
-<li>string manipulation (<a href="#6.4">§6.4</a>);</li>
-
-<li>table manipulation (<a href="#6.5">§6.5</a>);</li>
-
-<li>mathematical functions (<a href="#6.6">§6.6</a>) (sin, log, etc.);</li>
-
-<li>bitwise operations (<a href="#6.7">§6.7</a>);</li>
-
-<li>input and output (<a href="#6.8">§6.8</a>);</li>
-
-<li>operating system facilities (<a href="#6.9">§6.9</a>);</li>
-
-<li>debug facilities (<a href="#6.10">§6.10</a>).</li>
-
-</ul><p>
-Except for the basic and the package libraries,
-each library provides all its functions as fields of a global table
-or as methods of its objects.
-
-
-<p>
-To have access to these libraries,
-the C host program should call the <a href="#luaL_openlibs"><code>luaL_openlibs</code></a> function,
-which opens all standard libraries.
-Alternatively,
-the host program can open them individually by using
-<a href="#luaL_requiref"><code>luaL_requiref</code></a> to call
-<a name="pdf-luaopen_base"><code>luaopen_base</code></a> (for the basic library),
-<a name="pdf-luaopen_package"><code>luaopen_package</code></a> (for the package library),
-<a name="pdf-luaopen_coroutine"><code>luaopen_coroutine</code></a> (for the coroutine library),
-<a name="pdf-luaopen_string"><code>luaopen_string</code></a> (for the string library),
-<a name="pdf-luaopen_table"><code>luaopen_table</code></a> (for the table library),
-<a name="pdf-luaopen_math"><code>luaopen_math</code></a> (for the mathematical library),
-<a name="pdf-luaopen_bit32"><code>luaopen_bit32</code></a> (for the bit library),
-<a name="pdf-luaopen_io"><code>luaopen_io</code></a> (for the I/O library),
-<a name="pdf-luaopen_os"><code>luaopen_os</code></a> (for the Operating System library),
-and <a name="pdf-luaopen_debug"><code>luaopen_debug</code></a> (for the debug library).
-These functions are declared in <a name="pdf-lualib.h"><code>lualib.h</code></a>.
-
-
-
-<h2>6.1 – <a name="6.1">Basic Functions</a></h2>
-
-<p>
-The basic library provides core functions to Lua.
-If you do not include this library in your application,
-you should check carefully whether you need to provide
-implementations for some of its facilities.
-
-
-<p>
-<hr><h3><a name="pdf-assert"><code>assert (v [, message])</code></a></h3>
-Issues an error when
-the value of its argument <code>v</code> is false (i.e., <b>nil</b> or <b>false</b>);
-otherwise, returns all its arguments.
-<code>message</code> is an error message;
-when absent, it defaults to "assertion failed!"
-
-
-
-
-<p>
-<hr><h3><a name="pdf-collectgarbage"><code>collectgarbage ([opt [, arg]])</code></a></h3>
-
-
-<p>
-This function is a generic interface to the garbage collector.
-It performs different functions according to its first argument, <code>opt</code>:
-
-<ul>
-
-<li><b>"<code>collect</code>": </b>
-performs a full garbage-collection cycle.
-This is the default option.
-</li>
-
-<li><b>"<code>stop</code>": </b>
-stops automatic execution of the garbage collector.
-The collector will run only when explicitly invoked,
-until a call to restart it.
-</li>
-
-<li><b>"<code>restart</code>": </b>
-restarts automatic execution of the garbage collector.
-</li>
-
-<li><b>"<code>count</code>": </b>
-returns the total memory in use by Lua (in Kbytes) and
-a second value with the total memory in bytes modulo 1024.
-The first value has a fractional part,
-so the following equality is always true:
-
-<pre>
- k, b = collectgarbage("count")
- assert(k*1024 == math.floor(k)*1024 + b)
-</pre><p>
-(The second result is useful when Lua is compiled
-with a non floating-point type for numbers.)
-</li>
-
-<li><b>"<code>step</code>": </b>
-performs a garbage-collection step.
-The step "size" is controlled by <code>arg</code>
-(larger values mean more steps) in a non-specified way.
-If you want to control the step size
-you must experimentally tune the value of <code>arg</code>.
-Returns <b>true</b> if the step finished a collection cycle.
-</li>
-
-<li><b>"<code>setpause</code>": </b>
-sets <code>arg</code> as the new value for the <em>pause</em> of
-the collector (see <a href="#2.5">§2.5</a>).
-Returns the previous value for <em>pause</em>.
-</li>
-
-<li><b>"<code>setstepmul</code>": </b>
-sets <code>arg</code> as the new value for the <em>step multiplier</em> of
-the collector (see <a href="#2.5">§2.5</a>).
-Returns the previous value for <em>step</em>.
-</li>
-
-<li><b>"<code>isrunning</code>": </b>
-returns a boolean that tells whether the collector is running
-(i.e., not stopped).
-</li>
-
-<li><b>"<code>generational</code>": </b>
-changes the collector to generational mode.
-This is an experimental feature (see <a href="#2.5">§2.5</a>).
-</li>
-
-<li><b>"<code>incremental</code>": </b>
-changes the collector to incremental mode.
-This is the default mode.
-</li>
-
-</ul>
-
-
-
-<p>
-<hr><h3><a name="pdf-dofile"><code>dofile ([filename])</code></a></h3>
-Opens the named file and executes its contents as a Lua chunk.
-When called without arguments,
-<code>dofile</code> executes the contents of the standard input (<code>stdin</code>).
-Returns all values returned by the chunk.
-In case of errors, <code>dofile</code> propagates the error
-to its caller (that is, <code>dofile</code> does not run in protected mode).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-error"><code>error (message [, level])</code></a></h3>
-Terminates the last protected function called
-and returns <code>message</code> as the error message.
-Function <code>error</code> never returns.
-
-
-<p>
-Usually, <code>error</code> adds some information about the error position
-at the beginning of the message, if the message is a string.
-The <code>level</code> argument specifies how to get the error position.
-With level 1 (the default), the error position is where the
-<code>error</code> function was called.
-Level 2 points the error to where the function
-that called <code>error</code> was called; and so on.
-Passing a level 0 avoids the addition of error position information
-to the message.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-_G"><code>_G</code></a></h3>
-A global variable (not a function) that
-holds the global environment (see <a href="#2.2">§2.2</a>).
-Lua itself does not use this variable;
-changing its value does not affect any environment,
-nor vice-versa.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-getmetatable"><code>getmetatable (object)</code></a></h3>
-
-
-<p>
-If <code>object</code> does not have a metatable, returns <b>nil</b>.
-Otherwise,
-if the object's metatable has a <code>"__metatable"</code> field,
-returns the associated value.
-Otherwise, returns the metatable of the given object.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-ipairs"><code>ipairs (t)</code></a></h3>
-
-
-<p>
-If <code>t</code> has a metamethod <code>__ipairs</code>,
-calls it with <code>t</code> as argument and returns the first three
-results from the call.
-
-
-<p>
-Otherwise,
-returns three values: an iterator function, the table <code>t</code>, and 0,
-so that the construction
-
-<pre>
- for i,v in ipairs(t) do <em>body</em> end
-</pre><p>
-will iterate over the pairs (<code>1,t[1]</code>), (<code>2,t[2]</code>), ...,
-up to the first integer key absent from the table.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-load"><code>load (ld [, source [, mode [, env]]])</code></a></h3>
-
-
-<p>
-Loads a chunk.
-
-
-<p>
-If <code>ld</code> is a string, the chunk is this string.
-If <code>ld</code> is a function,
-<code>load</code> calls it repeatedly to get the chunk pieces.
-Each call to <code>ld</code> must return a string that concatenates
-with previous results.
-A return of an empty string, <b>nil</b>, or no value signals the end of the chunk.
-
-
-<p>
-If there are no syntactic errors,
-returns the compiled chunk as a function;
-otherwise, returns <b>nil</b> plus the error message.
-
-
-<p>
-If the resulting function has upvalues,
-the first upvalue is set to the value of <code>env</code>,
-if that parameter is given,
-or to the value of the global environment.
-(When you load a main chunk,
-the resulting function will always have exactly one upvalue,
-the <code>_ENV</code> variable (see <a href="#2.2">§2.2</a>).
-When you load a binary chunk created from a function (see <a href="#pdf-string.dump"><code>string.dump</code></a>),
-the resulting function can have arbitrary upvalues.)
-
-
-<p>
-<code>source</code> is used as the source of the chunk for error messages
-and debug information (see <a href="#4.9">§4.9</a>).
-When absent,
-it defaults to <code>ld</code>, if <code>ld</code> is a string,
-or to "<code>=(load)</code>" otherwise.
-
-
-<p>
-The string <code>mode</code> controls whether the chunk can be text or binary
-(that is, a precompiled chunk).
-It may be the string "<code>b</code>" (only binary chunks),
-"<code>t</code>" (only text chunks),
-or "<code>bt</code>" (both binary and text).
-The default is "<code>bt</code>".
-
-
-
-
-<p>
-<hr><h3><a name="pdf-loadfile"><code>loadfile ([filename [, mode [, env]]])</code></a></h3>
-
-
-<p>
-Similar to <a href="#pdf-load"><code>load</code></a>,
-but gets the chunk from file <code>filename</code>
-or from the standard input,
-if no file name is given.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-next"><code>next (table [, index])</code></a></h3>
-
-
-<p>
-Allows a program to traverse all fields of a table.
-Its first argument is a table and its second argument
-is an index in this table.
-<code>next</code> returns the next index of the table
-and its associated value.
-When called with <b>nil</b> as its second argument,
-<code>next</code> returns an initial index
-and its associated value.
-When called with the last index,
-or with <b>nil</b> in an empty table,
-<code>next</code> returns <b>nil</b>.
-If the second argument is absent, then it is interpreted as <b>nil</b>.
-In particular,
-you can use <code>next(t)</code> to check whether a table is empty.
-
-
-<p>
-The order in which the indices are enumerated is not specified,
-<em>even for numeric indices</em>.
-(To traverse a table in numeric order,
-use a numerical <b>for</b>.)
-
-
-<p>
-The behavior of <code>next</code> is undefined if,
-during the traversal,
-you assign any value to a non-existent field in the table.
-You may however modify existing fields.
-In particular, you may clear existing fields.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-pairs"><code>pairs (t)</code></a></h3>
-
-
-<p>
-If <code>t</code> has a metamethod <code>__pairs</code>,
-calls it with <code>t</code> as argument and returns the first three
-results from the call.
-
-
-<p>
-Otherwise,
-returns three values: the <a href="#pdf-next"><code>next</code></a> function, the table <code>t</code>, and <b>nil</b>,
-so that the construction
-
-<pre>
- for k,v in pairs(t) do <em>body</em> end
-</pre><p>
-will iterate over all key–value pairs of table <code>t</code>.
-
-
-<p>
-See function <a href="#pdf-next"><code>next</code></a> for the caveats of modifying
-the table during its traversal.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-pcall"><code>pcall (f [, arg1, ···])</code></a></h3>
-
-
-<p>
-Calls function <code>f</code> with
-the given arguments in <em>protected mode</em>.
-This means that any error inside <code>f</code> is not propagated;
-instead, <code>pcall</code> catches the error
-and returns a status code.
-Its first result is the status code (a boolean),
-which is true if the call succeeds without errors.
-In such case, <code>pcall</code> also returns all results from the call,
-after this first result.
-In case of any error, <code>pcall</code> returns <b>false</b> plus the error message.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-print"><code>print (···)</code></a></h3>
-Receives any number of arguments
-and prints their values to <code>stdout</code>,
-using the <a href="#pdf-tostring"><code>tostring</code></a> function to convert each argument to a string.
-<code>print</code> is not intended for formatted output,
-but only as a quick way to show a value,
-for instance for debugging.
-For complete control over the output,
-use <a href="#pdf-string.format"><code>string.format</code></a> and <a href="#pdf-io.write"><code>io.write</code></a>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-rawequal"><code>rawequal (v1, v2)</code></a></h3>
-Checks whether <code>v1</code> is equal to <code>v2</code>,
-without invoking any metamethod.
-Returns a boolean.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-rawget"><code>rawget (table, index)</code></a></h3>
-Gets the real value of <code>table[index]</code>,
-without invoking any metamethod.
-<code>table</code> must be a table;
-<code>index</code> may be any value.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-rawlen"><code>rawlen (v)</code></a></h3>
-Returns the length of the object <code>v</code>,
-which must be a table or a string,
-without invoking any metamethod.
-Returns an integer number.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-rawset"><code>rawset (table, index, value)</code></a></h3>
-Sets the real value of <code>table[index]</code> to <code>value</code>,
-without invoking any metamethod.
-<code>table</code> must be a table,
-<code>index</code> any value different from <b>nil</b> and NaN,
-and <code>value</code> any Lua value.
-
-
-<p>
-This function returns <code>table</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-select"><code>select (index, ···)</code></a></h3>
-
-
-<p>
-If <code>index</code> is a number,
-returns all arguments after argument number <code>index</code>;
-a negative number indexes from the end (-1 is the last argument).
-Otherwise, <code>index</code> must be the string <code>"#"</code>,
-and <code>select</code> returns the total number of extra arguments it received.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-setmetatable"><code>setmetatable (table, metatable)</code></a></h3>
-
-
-<p>
-Sets the metatable for the given table.
-(You cannot change the metatable of other types from Lua, only from C.)
-If <code>metatable</code> is <b>nil</b>,
-removes the metatable of the given table.
-If the original metatable has a <code>"__metatable"</code> field,
-raises an error.
-
-
-<p>
-This function returns <code>table</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-tonumber"><code>tonumber (e [, base])</code></a></h3>
-
-
-<p>
-When called with no <code>base</code>,
-<code>tonumber</code> tries to convert its argument to a number.
-If the argument is already a number or
-a string convertible to a number (see <a href="#3.4.2">§3.4.2</a>),
-then <code>tonumber</code> returns this number;
-otherwise, it returns <b>nil</b>.
-
-
-<p>
-When called with <code>base</code>,
-then <code>e</code> should be a string to be interpreted as
-an integer numeral in that base.
-The base may be any integer between 2 and 36, inclusive.
-In bases above 10, the letter '<code>A</code>' (in either upper or lower case)
-represents 10, '<code>B</code>' represents 11, and so forth,
-with '<code>Z</code>' representing 35.
-If the string <code>e</code> is not a valid numeral in the given base,
-the function returns <b>nil</b>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-tostring"><code>tostring (v)</code></a></h3>
-Receives a value of any type and
-converts it to a string in a reasonable format.
-(For complete control of how numbers are converted,
-use <a href="#pdf-string.format"><code>string.format</code></a>.)
-
-
-<p>
-If the metatable of <code>v</code> has a <code>"__tostring"</code> field,
-then <code>tostring</code> calls the corresponding value
-with <code>v</code> as argument,
-and uses the result of the call as its result.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-type"><code>type (v)</code></a></h3>
-Returns the type of its only argument, coded as a string.
-The possible results of this function are
-"<code>nil</code>" (a string, not the value <b>nil</b>),
-"<code>number</code>",
-"<code>string</code>",
-"<code>boolean</code>",
-"<code>table</code>",
-"<code>function</code>",
-"<code>thread</code>",
-and "<code>userdata</code>".
-
-
-
-
-<p>
-<hr><h3><a name="pdf-_VERSION"><code>_VERSION</code></a></h3>
-A global variable (not a function) that
-holds a string containing the current interpreter version.
-The current contents of this variable is "<code>Lua 5.2</code>".
-
-
-
-
-<p>
-<hr><h3><a name="pdf-xpcall"><code>xpcall (f, msgh [, arg1, ···])</code></a></h3>
-
-
-<p>
-This function is similar to <a href="#pdf-pcall"><code>pcall</code></a>,
-except that it sets a new message handler <code>msgh</code>.
-
-
-
-
-
-
-
-<h2>6.2 – <a name="6.2">Coroutine Manipulation</a></h2>
-
-<p>
-The operations related to coroutines comprise a sub-library of
-the basic library and come inside the table <a name="pdf-coroutine"><code>coroutine</code></a>.
-See <a href="#2.6">§2.6</a> for a general description of coroutines.
-
-
-<p>
-<hr><h3><a name="pdf-coroutine.create"><code>coroutine.create (f)</code></a></h3>
-
-
-<p>
-Creates a new coroutine, with body <code>f</code>.
-<code>f</code> must be a Lua function.
-Returns this new coroutine,
-an object with type <code>"thread"</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-coroutine.resume"><code>coroutine.resume (co [, val1, ···])</code></a></h3>
-
-
-<p>
-Starts or continues the execution of coroutine <code>co</code>.
-The first time you resume a coroutine,
-it starts running its body.
-The values <code>val1</code>, ... are passed
-as the arguments to the body function.
-If the coroutine has yielded,
-<code>resume</code> restarts it;
-the values <code>val1</code>, ... are passed
-as the results from the yield.
-
-
-<p>
-If the coroutine runs without any errors,
-<code>resume</code> returns <b>true</b> plus any values passed to <code>yield</code>
-(if the coroutine yields) or any values returned by the body function
-(if the coroutine terminates).
-If there is any error,
-<code>resume</code> returns <b>false</b> plus the error message.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-coroutine.running"><code>coroutine.running ()</code></a></h3>
-
-
-<p>
-Returns the running coroutine plus a boolean,
-true when the running coroutine is the main one.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-coroutine.status"><code>coroutine.status (co)</code></a></h3>
-
-
-<p>
-Returns the status of coroutine <code>co</code>, as a string:
-<code>"running"</code>,
-if the coroutine is running (that is, it called <code>status</code>);
-<code>"suspended"</code>, if the coroutine is suspended in a call to <code>yield</code>,
-or if it has not started running yet;
-<code>"normal"</code> if the coroutine is active but not running
-(that is, it has resumed another coroutine);
-and <code>"dead"</code> if the coroutine has finished its body function,
-or if it has stopped with an error.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-coroutine.wrap"><code>coroutine.wrap (f)</code></a></h3>
-
-
-<p>
-Creates a new coroutine, with body <code>f</code>.
-<code>f</code> must be a Lua function.
-Returns a function that resumes the coroutine each time it is called.
-Any arguments passed to the function behave as the
-extra arguments to <code>resume</code>.
-Returns the same values returned by <code>resume</code>,
-except the first boolean.
-In case of error, propagates the error.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-coroutine.yield"><code>coroutine.yield (···)</code></a></h3>
-
-
-<p>
-Suspends the execution of the calling coroutine.
-Any arguments to <code>yield</code> are passed as extra results to <code>resume</code>.
-
-
-
-
-
-
-
-<h2>6.3 – <a name="6.3">Modules</a></h2>
-
-<p>
-The package library provides basic
-facilities for loading modules in Lua.
-It exports one function directly in the global environment:
-<a href="#pdf-require"><code>require</code></a>.
-Everything else is exported in a table <a name="pdf-package"><code>package</code></a>.
-
-
-<p>
-<hr><h3><a name="pdf-require"><code>require (modname)</code></a></h3>
-
-
-<p>
-Loads the given module.
-The function starts by looking into the <a href="#pdf-package.loaded"><code>package.loaded</code></a> table
-to determine whether <code>modname</code> is already loaded.
-If it is, then <code>require</code> returns the value stored
-at <code>package.loaded[modname]</code>.
-Otherwise, it tries to find a <em>loader</em> for the module.
-
-
-<p>
-To find a loader,
-<code>require</code> is guided by the <a href="#pdf-package.searchers"><code>package.searchers</code></a> sequence.
-By changing this sequence,
-we can change how <code>require</code> looks for a module.
-The following explanation is based on the default configuration
-for <a href="#pdf-package.searchers"><code>package.searchers</code></a>.
-
-
-<p>
-First <code>require</code> queries <code>package.preload[modname]</code>.
-If it has a value,
-this value (which should be a function) is the loader.
-Otherwise <code>require</code> searches for a Lua loader using the
-path stored in <a href="#pdf-package.path"><code>package.path</code></a>.
-If that also fails, it searches for a C loader using the
-path stored in <a href="#pdf-package.cpath"><code>package.cpath</code></a>.
-If that also fails,
-it tries an <em>all-in-one</em> loader (see <a href="#pdf-package.searchers"><code>package.searchers</code></a>).
-
-
-<p>
-Once a loader is found,
-<code>require</code> calls the loader with two arguments:
-<code>modname</code> and an extra value dependent on how it got the loader.
-(If the loader came from a file,
-this extra value is the file name.)
-If the loader returns any non-nil value,
-<code>require</code> assigns the returned value to <code>package.loaded[modname]</code>.
-If the loader does not return a non-nil value and
-has not assigned any value to <code>package.loaded[modname]</code>,
-then <code>require</code> assigns <b>true</b> to this entry.
-In any case, <code>require</code> returns the
-final value of <code>package.loaded[modname]</code>.
-
-
-<p>
-If there is any error loading or running the module,
-or if it cannot find any loader for the module,
-then <code>require</code> raises an error.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.config"><code>package.config</code></a></h3>
-
-
-<p>
-A string describing some compile-time configurations for packages.
-This string is a sequence of lines:
-
-<ul>
-
-<li>The first line is the directory separator string.
-Default is '<code>\</code>' for Windows and '<code>/</code>' for all other systems.</li>
-
-<li>The second line is the character that separates templates in a path.
-Default is '<code>;</code>'.</li>
-
-<li>The third line is the string that marks the
-substitution points in a template.
-Default is '<code>?</code>'.</li>
-
-<li>The fourth line is a string that, in a path in Windows,
-is replaced by the executable's directory.
-Default is '<code>!</code>'.</li>
-
-<li>The fifth line is a mark to ignore all text before it
-when building the <code>luaopen_</code> function name.
-Default is '<code>-</code>'.</li>
-
-</ul>
-
-
-
-<p>
-<hr><h3><a name="pdf-package.cpath"><code>package.cpath</code></a></h3>
-
-
-<p>
-The path used by <a href="#pdf-require"><code>require</code></a> to search for a C loader.
-
-
-<p>
-Lua initializes the C path <a href="#pdf-package.cpath"><code>package.cpath</code></a> in the same way
-it initializes the Lua path <a href="#pdf-package.path"><code>package.path</code></a>,
-using the environment variable <a name="pdf-LUA_CPATH_5_2"><code>LUA_CPATH_5_2</code></a>
-or the environment variable <a name="pdf-LUA_CPATH"><code>LUA_CPATH</code></a>
-or a default path defined in <code>luaconf.h</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.loaded"><code>package.loaded</code></a></h3>
-
-
-<p>
-A table used by <a href="#pdf-require"><code>require</code></a> to control which
-modules are already loaded.
-When you require a module <code>modname</code> and
-<code>package.loaded[modname]</code> is not false,
-<a href="#pdf-require"><code>require</code></a> simply returns the value stored there.
-
-
-<p>
-This variable is only a reference to the real table;
-assignments to this variable do not change the
-table used by <a href="#pdf-require"><code>require</code></a>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.loadlib"><code>package.loadlib (libname, funcname)</code></a></h3>
-
-
-<p>
-Dynamically links the host program with the C library <code>libname</code>.
-
-
-<p>
-If <code>funcname</code> is "<code>*</code>",
-then it only links with the library,
-making the symbols exported by the library
-available to other dynamically linked libraries.
-Otherwise,
-it looks for a function <code>funcname</code> inside the library
-and returns this function as a C function.
-So, <code>funcname</code> must follow the <a href="#lua_CFunction"><code>lua_CFunction</code></a> prototype
-(see <a href="#lua_CFunction"><code>lua_CFunction</code></a>).
-
-
-<p>
-This is a low-level function.
-It completely bypasses the package and module system.
-Unlike <a href="#pdf-require"><code>require</code></a>,
-it does not perform any path searching and
-does not automatically adds extensions.
-<code>libname</code> must be the complete file name of the C library,
-including if necessary a path and an extension.
-<code>funcname</code> must be the exact name exported by the C library
-(which may depend on the C compiler and linker used).
-
-
-<p>
-This function is not supported by Standard C.
-As such, it is only available on some platforms
-(Windows, Linux, Mac OS X, Solaris, BSD,
-plus other Unix systems that support the <code>dlfcn</code> standard).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.path"><code>package.path</code></a></h3>
-
-
-<p>
-The path used by <a href="#pdf-require"><code>require</code></a> to search for a Lua loader.
-
-
-<p>
-At start-up, Lua initializes this variable with
-the value of the environment variable <a name="pdf-LUA_PATH_5_2"><code>LUA_PATH_5_2</code></a> or
-the environment variable <a name="pdf-LUA_PATH"><code>LUA_PATH</code></a> or
-with a default path defined in <code>luaconf.h</code>,
-if those environment variables are not defined.
-Any "<code>;;</code>" in the value of the environment variable
-is replaced by the default path.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.preload"><code>package.preload</code></a></h3>
-
-
-<p>
-A table to store loaders for specific modules
-(see <a href="#pdf-require"><code>require</code></a>).
-
-
-<p>
-This variable is only a reference to the real table;
-assignments to this variable do not change the
-table used by <a href="#pdf-require"><code>require</code></a>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.searchers"><code>package.searchers</code></a></h3>
-
-
-<p>
-A table used by <a href="#pdf-require"><code>require</code></a> to control how to load modules.
-
-
-<p>
-Each entry in this table is a <em>searcher function</em>.
-When looking for a module,
-<a href="#pdf-require"><code>require</code></a> calls each of these searchers in ascending order,
-with the module name (the argument given to <a href="#pdf-require"><code>require</code></a>) as its
-sole parameter.
-The function can return another function (the module <em>loader</em>)
-plus an extra value that will be passed to that loader,
-or a string explaining why it did not find that module
-(or <b>nil</b> if it has nothing to say).
-
-
-<p>
-Lua initializes this table with four searcher functions.
-
-
-<p>
-The first searcher simply looks for a loader in the
-<a href="#pdf-package.preload"><code>package.preload</code></a> table.
-
-
-<p>
-The second searcher looks for a loader as a Lua library,
-using the path stored at <a href="#pdf-package.path"><code>package.path</code></a>.
-The search is done as described in function <a href="#pdf-package.searchpath"><code>package.searchpath</code></a>.
-
-
-<p>
-The third searcher looks for a loader as a C library,
-using the path given by the variable <a href="#pdf-package.cpath"><code>package.cpath</code></a>.
-Again,
-the search is done as described in function <a href="#pdf-package.searchpath"><code>package.searchpath</code></a>.
-For instance,
-if the C path is the string
-
-<pre>
- "./?.so;./?.dll;/usr/local/?/init.so"
-</pre><p>
-the searcher for module <code>foo</code>
-will try to open the files <code>./foo.so</code>, <code>./foo.dll</code>,
-and <code>/usr/local/foo/init.so</code>, in that order.
-Once it finds a C library,
-this searcher first uses a dynamic link facility to link the
-application with the library.
-Then it tries to find a C function inside the library to
-be used as the loader.
-The name of this C function is the string "<code>luaopen_</code>"
-concatenated with a copy of the module name where each dot
-is replaced by an underscore.
-Moreover, if the module name has a hyphen,
-its prefix up to (and including) the first hyphen is removed.
-For instance, if the module name is <code>a.v1-b.c</code>,
-the function name will be <code>luaopen_b_c</code>.
-
-
-<p>
-The fourth searcher tries an <em>all-in-one loader</em>.
-It searches the C path for a library for
-the root name of the given module.
-For instance, when requiring <code>a.b.c</code>,
-it will search for a C library for <code>a</code>.
-If found, it looks into it for an open function for
-the submodule;
-in our example, that would be <code>luaopen_a_b_c</code>.
-With this facility, a package can pack several C submodules
-into one single library,
-with each submodule keeping its original open function.
-
-
-<p>
-All searchers except the first one (preload) return as the extra value
-the file name where the module was found,
-as returned by <a href="#pdf-package.searchpath"><code>package.searchpath</code></a>.
-The first searcher returns no extra value.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-package.searchpath"><code>package.searchpath (name, path [, sep [, rep]])</code></a></h3>
-
-
-<p>
-Searches for the given <code>name</code> in the given <code>path</code>.
-
-
-<p>
-A path is a string containing a sequence of
-<em>templates</em> separated by semicolons.
-For each template,
-the function replaces each interrogation mark (if any)
-in the template with a copy of <code>name</code>
-wherein all occurrences of <code>sep</code>
-(a dot, by default)
-were replaced by <code>rep</code>
-(the system's directory separator, by default),
-and then tries to open the resulting file name.
-
-
-<p>
-For instance, if the path is the string
-
-<pre>
- "./?.lua;./?.lc;/usr/local/?/init.lua"
-</pre><p>
-the search for the name <code>foo.a</code>
-will try to open the files
-<code>./foo/a.lua</code>, <code>./foo/a.lc</code>, and
-<code>/usr/local/foo/a/init.lua</code>, in that order.
-
-
-<p>
-Returns the resulting name of the first file that it can
-open in read mode (after closing the file),
-or <b>nil</b> plus an error message if none succeeds.
-(This error message lists all file names it tried to open.)
-
-
-
-
-
-
-
-<h2>6.4 – <a name="6.4">String Manipulation</a></h2>
-
-<p>
-This library provides generic functions for string manipulation,
-such as finding and extracting substrings, and pattern matching.
-When indexing a string in Lua, the first character is at position 1
-(not at 0, as in C).
-Indices are allowed to be negative and are interpreted as indexing backwards,
-from the end of the string.
-Thus, the last character is at position -1, and so on.
-
-
-<p>
-The string library provides all its functions inside the table
-<a name="pdf-string"><code>string</code></a>.
-It also sets a metatable for strings
-where the <code>__index</code> field points to the <code>string</code> table.
-Therefore, you can use the string functions in object-oriented style.
-For instance, <code>string.byte(s,i)</code>
-can be written as <code>s:byte(i)</code>.
-
-
-<p>
-The string library assumes one-byte character encodings.
-
-
-<p>
-<hr><h3><a name="pdf-string.byte"><code>string.byte (s [, i [, j]])</code></a></h3>
-Returns the internal numerical codes of the characters <code>s[i]</code>,
-<code>s[i+1]</code>, ..., <code>s[j]</code>.
-The default value for <code>i</code> is 1;
-the default value for <code>j</code> is <code>i</code>.
-These indices are corrected
-following the same rules of function <a href="#pdf-string.sub"><code>string.sub</code></a>.
-
-
-<p>
-Numerical codes are not necessarily portable across platforms.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.char"><code>string.char (···)</code></a></h3>
-Receives zero or more integers.
-Returns a string with length equal to the number of arguments,
-in which each character has the internal numerical code equal
-to its corresponding argument.
-
-
-<p>
-Numerical codes are not necessarily portable across platforms.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.dump"><code>string.dump (function)</code></a></h3>
-
-
-<p>
-Returns a string containing a binary representation of the given function,
-so that a later <a href="#pdf-load"><code>load</code></a> on this string returns
-a copy of the function (but with new upvalues).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.find"><code>string.find (s, pattern [, init [, plain]])</code></a></h3>
-
-
-<p>
-Looks for the first match of
-<code>pattern</code> in the string <code>s</code>.
-If it finds a match, then <code>find</code> returns the indices of <code>s</code>
-where this occurrence starts and ends;
-otherwise, it returns <b>nil</b>.
-A third, optional numerical argument <code>init</code> specifies
-where to start the search;
-its default value is 1 and can be negative.
-A value of <b>true</b> as a fourth, optional argument <code>plain</code>
-turns off the pattern matching facilities,
-so the function does a plain "find substring" operation,
-with no characters in <code>pattern</code> being considered magic.
-Note that if <code>plain</code> is given, then <code>init</code> must be given as well.
-
-
-<p>
-If the pattern has captures,
-then in a successful match
-the captured values are also returned,
-after the two indices.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.format"><code>string.format (formatstring, ···)</code></a></h3>
-
-
-<p>
-Returns a formatted version of its variable number of arguments
-following the description given in its first argument (which must be a string).
-The format string follows the same rules as the ISO C function <code>sprintf</code>.
-The only differences are that the options/modifiers
-<code>*</code>, <code>h</code>, <code>L</code>, <code>l</code>, <code>n</code>,
-and <code>p</code> are not supported
-and that there is an extra option, <code>q</code>.
-The <code>q</code> option formats a string between double quotes,
-using escape sequences when necessary to ensure that
-it can safely be read back by the Lua interpreter.
-For instance, the call
-
-<pre>
- string.format('%q', 'a string with "quotes" and \n new line')
-</pre><p>
-may produce the string:
-
-<pre>
- "a string with \"quotes\" and \
- new line"
-</pre>
-
-<p>
-Options
-<code>A</code> and <code>a</code> (when available),
-<code>E</code>, <code>e</code>, <code>f</code>,
-<code>G</code>, and <code>g</code> all expect a number as argument.
-Options <code>c</code>, <code>d</code>,
-<code>i</code>, <code>o</code>, <code>u</code>, <code>X</code>, and <code>x</code>
-also expect a number,
-but the range of that number may be limited by
-the underlying C implementation.
-For options <code>o</code>, <code>u</code>, <code>X</code>, and <code>x</code>,
-the number cannot be negative.
-Option <code>q</code> expects a string;
-option <code>s</code> expects a string without embedded zeros.
-If the argument to option <code>s</code> is not a string,
-it is converted to one following the same rules of <a href="#pdf-tostring"><code>tostring</code></a>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.gmatch"><code>string.gmatch (s, pattern)</code></a></h3>
-Returns an iterator function that,
-each time it is called,
-returns the next captures from <code>pattern</code> over the string <code>s</code>.
-If <code>pattern</code> specifies no captures,
-then the whole match is produced in each call.
-
-
-<p>
-As an example, the following loop
-will iterate over all the words from string <code>s</code>,
-printing one per line:
-
-<pre>
- s = "hello world from Lua"
- for w in string.gmatch(s, "%a+") do
- print(w)
- end
-</pre><p>
-The next example collects all pairs <code>key=value</code> from the
-given string into a table:
-
-<pre>
- t = {}
- s = "from=world, to=Lua"
- for k, v in string.gmatch(s, "(%w+)=(%w+)") do
- t[k] = v
- end
-</pre>
-
-<p>
-For this function, a caret '<code>^</code>' at the start of a pattern does not
-work as an anchor, as this would prevent the iteration.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.gsub"><code>string.gsub (s, pattern, repl [, n])</code></a></h3>
-Returns a copy of <code>s</code>
-in which all (or the first <code>n</code>, if given)
-occurrences of the <code>pattern</code> have been
-replaced by a replacement string specified by <code>repl</code>,
-which can be a string, a table, or a function.
-<code>gsub</code> also returns, as its second value,
-the total number of matches that occurred.
-The name <code>gsub</code> comes from <em>Global SUBstitution</em>.
-
-
-<p>
-If <code>repl</code> is a string, then its value is used for replacement.
-The character <code>%</code> works as an escape character:
-any sequence in <code>repl</code> of the form <code>%<em>d</em></code>,
-with <em>d</em> between 1 and 9,
-stands for the value of the <em>d</em>-th captured substring.
-The sequence <code>%0</code> stands for the whole match.
-The sequence <code>%%</code> stands for a single <code>%</code>.
-
-
-<p>
-If <code>repl</code> is a table, then the table is queried for every match,
-using the first capture as the key.
-
-
-<p>
-If <code>repl</code> is a function, then this function is called every time a
-match occurs, with all captured substrings passed as arguments,
-in order.
-
-
-<p>
-In any case,
-if the pattern specifies no captures,
-then it behaves as if the whole pattern was inside a capture.
-
-
-<p>
-If the value returned by the table query or by the function call
-is a string or a number,
-then it is used as the replacement string;
-otherwise, if it is <b>false</b> or <b>nil</b>,
-then there is no replacement
-(that is, the original match is kept in the string).
-
-
-<p>
-Here are some examples:
-
-<pre>
- x = string.gsub("hello world", "(%w+)", "%1 %1")
- --> x="hello hello world world"
-
- x = string.gsub("hello world", "%w+", "%0 %0", 1)
- --> x="hello hello world"
-
- x = string.gsub("hello world from Lua", "(%w+)%s*(%w+)", "%2 %1")
- --> x="world hello Lua from"
-
- x = string.gsub("home = $HOME, user = $USER", "%$(%w+)", os.getenv)
- --> x="home = /home/roberto, user = roberto"
-
- x = string.gsub("4+5 = $return 4+5$", "%$(.-)%$", function (s)
- return load(s)()
- end)
- --> x="4+5 = 9"
-
- local t = {name="lua", version="5.2"}
- x = string.gsub("$name-$version.tar.gz", "%$(%w+)", t)
- --> x="lua-5.2.tar.gz"
-</pre>
-
-
-
-<p>
-<hr><h3><a name="pdf-string.len"><code>string.len (s)</code></a></h3>
-Receives a string and returns its length.
-The empty string <code>""</code> has length 0.
-Embedded zeros are counted,
-so <code>"a\000bc\000"</code> has length 5.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.lower"><code>string.lower (s)</code></a></h3>
-Receives a string and returns a copy of this string with all
-uppercase letters changed to lowercase.
-All other characters are left unchanged.
-The definition of what an uppercase letter is depends on the current locale.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.match"><code>string.match (s, pattern [, init])</code></a></h3>
-Looks for the first <em>match</em> of
-<code>pattern</code> in the string <code>s</code>.
-If it finds one, then <code>match</code> returns
-the captures from the pattern;
-otherwise it returns <b>nil</b>.
-If <code>pattern</code> specifies no captures,
-then the whole match is returned.
-A third, optional numerical argument <code>init</code> specifies
-where to start the search;
-its default value is 1 and can be negative.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.rep"><code>string.rep (s, n [, sep])</code></a></h3>
-Returns a string that is the concatenation of <code>n</code> copies of
-the string <code>s</code> separated by the string <code>sep</code>.
-The default value for <code>sep</code> is the empty string
-(that is, no separator).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.reverse"><code>string.reverse (s)</code></a></h3>
-Returns a string that is the string <code>s</code> reversed.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.sub"><code>string.sub (s, i [, j])</code></a></h3>
-Returns the substring of <code>s</code> that
-starts at <code>i</code> and continues until <code>j</code>;
-<code>i</code> and <code>j</code> can be negative.
-If <code>j</code> is absent, then it is assumed to be equal to -1
-(which is the same as the string length).
-In particular,
-the call <code>string.sub(s,1,j)</code> returns a prefix of <code>s</code>
-with length <code>j</code>,
-and <code>string.sub(s, -i)</code> returns a suffix of <code>s</code>
-with length <code>i</code>.
-
-
-<p>
-If, after the translation of negative indices,
-<code>i</code> is less than 1,
-it is corrected to 1.
-If <code>j</code> is greater than the string length,
-it is corrected to that length.
-If, after these corrections,
-<code>i</code> is greater than <code>j</code>,
-the function returns the empty string.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-string.upper"><code>string.upper (s)</code></a></h3>
-Receives a string and returns a copy of this string with all
-lowercase letters changed to uppercase.
-All other characters are left unchanged.
-The definition of what a lowercase letter is depends on the current locale.
-
-
-
-<h3>6.4.1 – <a name="6.4.1">Patterns</a></h3>
-
-
-<h4>Character Class:</h4><p>
-A <em>character class</em> is used to represent a set of characters.
-The following combinations are allowed in describing a character class:
-
-<ul>
-
-<li><b><em>x</em>: </b>
-(where <em>x</em> is not one of the <em>magic characters</em>
-<code>^$()%.[]*+-?</code>)
-represents the character <em>x</em> itself.
-</li>
-
-<li><b><code>.</code>: </b> (a dot) represents all characters.</li>
-
-<li><b><code>%a</code>: </b> represents all letters.</li>
-
-<li><b><code>%c</code>: </b> represents all control characters.</li>
-
-<li><b><code>%d</code>: </b> represents all digits.</li>
-
-<li><b><code>%g</code>: </b> represents all printable characters except space.</li>
-
-<li><b><code>%l</code>: </b> represents all lowercase letters.</li>
-
-<li><b><code>%p</code>: </b> represents all punctuation characters.</li>
-
-<li><b><code>%s</code>: </b> represents all space characters.</li>
-
-<li><b><code>%u</code>: </b> represents all uppercase letters.</li>
-
-<li><b><code>%w</code>: </b> represents all alphanumeric characters.</li>
-
-<li><b><code>%x</code>: </b> represents all hexadecimal digits.</li>
-
-<li><b><code>%<em>x</em></code>: </b> (where <em>x</em> is any non-alphanumeric character)
-represents the character <em>x</em>.
-This is the standard way to escape the magic characters.
-Any punctuation character (even the non magic)
-can be preceded by a '<code>%</code>'
-when used to represent itself in a pattern.
-</li>
-
-<li><b><code>[<em>set</em>]</code>: </b>
-represents the class which is the union of all
-characters in <em>set</em>.
-A range of characters can be specified by
-separating the end characters of the range,
-in ascending order, with a '<code>-</code>',
-All classes <code>%</code><em>x</em> described above can also be used as
-components in <em>set</em>.
-All other characters in <em>set</em> represent themselves.
-For example, <code>[%w_]</code> (or <code>[_%w]</code>)
-represents all alphanumeric characters plus the underscore,
-<code>[0-7]</code> represents the octal digits,
-and <code>[0-7%l%-]</code> represents the octal digits plus
-the lowercase letters plus the '<code>-</code>' character.
-
-
-<p>
-The interaction between ranges and classes is not defined.
-Therefore, patterns like <code>[%a-z]</code> or <code>[a-%%]</code>
-have no meaning.
-</li>
-
-<li><b><code>[^<em>set</em>]</code>: </b>
-represents the complement of <em>set</em>,
-where <em>set</em> is interpreted as above.
-</li>
-
-</ul><p>
-For all classes represented by single letters (<code>%a</code>, <code>%c</code>, etc.),
-the corresponding uppercase letter represents the complement of the class.
-For instance, <code>%S</code> represents all non-space characters.
-
-
-<p>
-The definitions of letter, space, and other character groups
-depend on the current locale.
-In particular, the class <code>[a-z]</code> may not be equivalent to <code>%l</code>.
-
-
-
-
-
-<h4>Pattern Item:</h4><p>
-A <em>pattern item</em> can be
-
-<ul>
-
-<li>
-a single character class,
-which matches any single character in the class;
-</li>
-
-<li>
-a single character class followed by '<code>*</code>',
-which matches 0 or more repetitions of characters in the class.
-These repetition items will always match the longest possible sequence;
-</li>
-
-<li>
-a single character class followed by '<code>+</code>',
-which matches 1 or more repetitions of characters in the class.
-These repetition items will always match the longest possible sequence;
-</li>
-
-<li>
-a single character class followed by '<code>-</code>',
-which also matches 0 or more repetitions of characters in the class.
-Unlike '<code>*</code>',
-these repetition items will always match the shortest possible sequence;
-</li>
-
-<li>
-a single character class followed by '<code>?</code>',
-which matches 0 or 1 occurrence of a character in the class;
-</li>
-
-<li>
-<code>%<em>n</em></code>, for <em>n</em> between 1 and 9;
-such item matches a substring equal to the <em>n</em>-th captured string
-(see below);
-</li>
-
-<li>
-<code>%b<em>xy</em></code>, where <em>x</em> and <em>y</em> are two distinct characters;
-such item matches strings that start with <em>x</em>, end with <em>y</em>,
-and where the <em>x</em> and <em>y</em> are <em>balanced</em>.
-This means that, if one reads the string from left to right,
-counting <em>+1</em> for an <em>x</em> and <em>-1</em> for a <em>y</em>,
-the ending <em>y</em> is the first <em>y</em> where the count reaches 0.
-For instance, the item <code>%b()</code> matches expressions with
-balanced parentheses.
-</li>
-
-<li>
-<code>%f[<em>set</em>]</code>, a <em>frontier pattern</em>;
-such item matches an empty string at any position such that
-the next character belongs to <em>set</em>
-and the previous character does not belong to <em>set</em>.
-The set <em>set</em> is interpreted as previously described.
-The beginning and the end of the subject are handled as if
-they were the character '<code>\0</code>'.
-</li>
-
-</ul>
-
-
-
-
-<h4>Pattern:</h4><p>
-A <em>pattern</em> is a sequence of pattern items.
-A caret '<code>^</code>' at the beginning of a pattern anchors the match at the
-beginning of the subject string.
-A '<code>$</code>' at the end of a pattern anchors the match at the
-end of the subject string.
-At other positions,
-'<code>^</code>' and '<code>$</code>' have no special meaning and represent themselves.
-
-
-
-
-
-<h4>Captures:</h4><p>
-A pattern can contain sub-patterns enclosed in parentheses;
-they describe <em>captures</em>.
-When a match succeeds, the substrings of the subject string
-that match captures are stored (<em>captured</em>) for future use.
-Captures are numbered according to their left parentheses.
-For instance, in the pattern <code>"(a*(.)%w(%s*))"</code>,
-the part of the string matching <code>"a*(.)%w(%s*)"</code> is
-stored as the first capture (and therefore has number 1);
-the character matching "<code>.</code>" is captured with number 2,
-and the part matching "<code>%s*</code>" has number 3.
-
-
-<p>
-As a special case, the empty capture <code>()</code> captures
-the current string position (a number).
-For instance, if we apply the pattern <code>"()aa()"</code> on the
-string <code>"flaaap"</code>, there will be two captures: 3 and 5.
-
-
-
-
-
-
-
-
-
-
-
-<h2>6.5 – <a name="6.5">Table Manipulation</a></h2>
-
-<p>
-This library provides generic functions for table manipulation.
-It provides all its functions inside the table <a name="pdf-table"><code>table</code></a>.
-
-
-<p>
-Remember that, whenever an operation needs the length of a table,
-the table should be a proper sequence
-or have a <code>__len</code> metamethod (see <a href="#3.4.6">§3.4.6</a>).
-All functions ignore non-numeric keys
-in tables given as arguments.
-
-
-<p>
-For performance reasons,
-all table accesses (get/set) performed by these functions are raw.
-
-
-<p>
-<hr><h3><a name="pdf-table.concat"><code>table.concat (list [, sep [, i [, j]]])</code></a></h3>
-
-
-<p>
-Given a list where all elements are strings or numbers,
-returns the string <code>list[i]..sep..list[i+1] ··· sep..list[j]</code>.
-The default value for <code>sep</code> is the empty string,
-the default for <code>i</code> is 1,
-and the default for <code>j</code> is <code>#list</code>.
-If <code>i</code> is greater than <code>j</code>, returns the empty string.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-table.insert"><code>table.insert (list, [pos,] value)</code></a></h3>
-
-
-<p>
-Inserts element <code>value</code> at position <code>pos</code> in <code>list</code>,
-shifting up the elements
-<code>list[pos], list[pos+1], ···, list[#list]</code>.
-The default value for <code>pos</code> is <code>#list+1</code>,
-so that a call <code>table.insert(t,x)</code> inserts <code>x</code> at the end
-of list <code>t</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-table.pack"><code>table.pack (···)</code></a></h3>
-
-
-<p>
-Returns a new table with all parameters stored into keys 1, 2, etc.
-and with a field "<code>n</code>" with the total number of parameters.
-Note that the resulting table may not be a sequence.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-table.remove"><code>table.remove (list [, pos])</code></a></h3>
-
-
-<p>
-Removes from <code>list</code> the element at position <code>pos</code>,
-returning the value of the removed element.
-When <code>pos</code> is an integer between 1 and <code>#list</code>,
-it shifts down the elements
-<code>list[pos+1], list[pos+2], ···, list[#list]</code>
-and erases element <code>list[#list]</code>;
-The index <code>pos</code> can also be 0 when <code>#list</code> is 0,
-or <code>#list + 1</code>;
-in those cases, the function erases the element <code>list[pos]</code>.
-
-
-<p>
-The default value for <code>pos</code> is <code>#list</code>,
-so that a call <code>table.remove(t)</code> removes the last element
-of list <code>t</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-table.sort"><code>table.sort (list [, comp])</code></a></h3>
-
-
-<p>
-Sorts list elements in a given order, <em>in-place</em>,
-from <code>list[1]</code> to <code>list[#list]</code>.
-If <code>comp</code> is given,
-then it must be a function that receives two list elements
-and returns true when the first element must come
-before the second in the final order
-(so that <code>not comp(list[i+1],list[i])</code> will be true after the sort).
-If <code>comp</code> is not given,
-then the standard Lua operator <code><</code> is used instead.
-
-
-<p>
-The sort algorithm is not stable;
-that is, elements considered equal by the given order
-may have their relative positions changed by the sort.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-table.unpack"><code>table.unpack (list [, i [, j]])</code></a></h3>
-
-
-<p>
-Returns the elements from the given table.
-This function is equivalent to
-
-<pre>
- return list[i], list[i+1], ···, list[j]
-</pre><p>
-By default, <code>i</code> is 1 and <code>j</code> is <code>#list</code>.
-
-
-
-
-
-
-
-<h2>6.6 – <a name="6.6">Mathematical Functions</a></h2>
-
-<p>
-This library is an interface to the standard C math library.
-It provides all its functions inside the table <a name="pdf-math"><code>math</code></a>.
-
-
-<p>
-<hr><h3><a name="pdf-math.abs"><code>math.abs (x)</code></a></h3>
-
-
-<p>
-Returns the absolute value of <code>x</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.acos"><code>math.acos (x)</code></a></h3>
-
-
-<p>
-Returns the arc cosine of <code>x</code> (in radians).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.asin"><code>math.asin (x)</code></a></h3>
-
-
-<p>
-Returns the arc sine of <code>x</code> (in radians).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.atan"><code>math.atan (x)</code></a></h3>
-
-
-<p>
-Returns the arc tangent of <code>x</code> (in radians).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.atan2"><code>math.atan2 (y, x)</code></a></h3>
-
-
-<p>
-Returns the arc tangent of <code>y/x</code> (in radians),
-but uses the signs of both parameters to find the
-quadrant of the result.
-(It also handles correctly the case of <code>x</code> being zero.)
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.ceil"><code>math.ceil (x)</code></a></h3>
-
-
-<p>
-Returns the smallest integer larger than or equal to <code>x</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.cos"><code>math.cos (x)</code></a></h3>
-
-
-<p>
-Returns the cosine of <code>x</code> (assumed to be in radians).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.cosh"><code>math.cosh (x)</code></a></h3>
-
-
-<p>
-Returns the hyperbolic cosine of <code>x</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.deg"><code>math.deg (x)</code></a></h3>
-
-
-<p>
-Returns the angle <code>x</code> (given in radians) in degrees.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.exp"><code>math.exp (x)</code></a></h3>
-
-
-<p>
-Returns the value <em>e<sup>x</sup></em>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.floor"><code>math.floor (x)</code></a></h3>
-
-
-<p>
-Returns the largest integer smaller than or equal to <code>x</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.fmod"><code>math.fmod (x, y)</code></a></h3>
-
-
-<p>
-Returns the remainder of the division of <code>x</code> by <code>y</code>
-that rounds the quotient towards zero.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.frexp"><code>math.frexp (x)</code></a></h3>
-
-
-<p>
-Returns <code>m</code> and <code>e</code> such that <em>x = m2<sup>e</sup></em>,
-<code>e</code> is an integer and the absolute value of <code>m</code> is
-in the range <em>[0.5, 1)</em>
-(or zero when <code>x</code> is zero).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.huge"><code>math.huge</code></a></h3>
-
-
-<p>
-The value <code>HUGE_VAL</code>,
-a value larger than or equal to any other numerical value.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.ldexp"><code>math.ldexp (m, e)</code></a></h3>
-
-
-<p>
-Returns <em>m2<sup>e</sup></em> (<code>e</code> should be an integer).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.log"><code>math.log (x [, base])</code></a></h3>
-
-
-<p>
-Returns the logarithm of <code>x</code> in the given base.
-The default for <code>base</code> is <em>e</em>
-(so that the function returns the natural logarithm of <code>x</code>).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.max"><code>math.max (x, ···)</code></a></h3>
-
-
-<p>
-Returns the maximum value among its arguments.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.min"><code>math.min (x, ···)</code></a></h3>
-
-
-<p>
-Returns the minimum value among its arguments.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.modf"><code>math.modf (x)</code></a></h3>
-
-
-<p>
-Returns two numbers,
-the integral part of <code>x</code> and the fractional part of <code>x</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.pi"><code>math.pi</code></a></h3>
-
-
-<p>
-The value of <em>π</em>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.pow"><code>math.pow (x, y)</code></a></h3>
-
-
-<p>
-Returns <em>x<sup>y</sup></em>.
-(You can also use the expression <code>x^y</code> to compute this value.)
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.rad"><code>math.rad (x)</code></a></h3>
-
-
-<p>
-Returns the angle <code>x</code> (given in degrees) in radians.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.random"><code>math.random ([m [, n]])</code></a></h3>
-
-
-<p>
-This function is an interface to the simple
-pseudo-random generator function <code>rand</code> provided by Standard C.
-(No guarantees can be given for its statistical properties.)
-
-
-<p>
-When called without arguments,
-returns a uniform pseudo-random real number
-in the range <em>[0,1)</em>.
-When called with an integer number <code>m</code>,
-<code>math.random</code> returns
-a uniform pseudo-random integer in the range <em>[1, m]</em>.
-When called with two integer numbers <code>m</code> and <code>n</code>,
-<code>math.random</code> returns a uniform pseudo-random
-integer in the range <em>[m, n]</em>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.randomseed"><code>math.randomseed (x)</code></a></h3>
-
-
-<p>
-Sets <code>x</code> as the "seed"
-for the pseudo-random generator:
-equal seeds produce equal sequences of numbers.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.sin"><code>math.sin (x)</code></a></h3>
-
-
-<p>
-Returns the sine of <code>x</code> (assumed to be in radians).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.sinh"><code>math.sinh (x)</code></a></h3>
-
-
-<p>
-Returns the hyperbolic sine of <code>x</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.sqrt"><code>math.sqrt (x)</code></a></h3>
-
-
-<p>
-Returns the square root of <code>x</code>.
-(You can also use the expression <code>x^0.5</code> to compute this value.)
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.tan"><code>math.tan (x)</code></a></h3>
-
-
-<p>
-Returns the tangent of <code>x</code> (assumed to be in radians).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-math.tanh"><code>math.tanh (x)</code></a></h3>
-
-
-<p>
-Returns the hyperbolic tangent of <code>x</code>.
-
-
-
-
-
-
-
-<h2>6.7 – <a name="6.7">Bitwise Operations</a></h2>
-
-<p>
-This library provides bitwise operations.
-It provides all its functions inside the table <a name="pdf-bit32"><code>bit32</code></a>.
-
-
-<p>
-Unless otherwise stated,
-all functions accept numeric arguments in the range
-<em>(-2<sup>51</sup>,+2<sup>51</sup>)</em>;
-each argument is normalized to
-the remainder of its division by <em>2<sup>32</sup></em>
-and truncated to an integer (in some unspecified way),
-so that its final value falls in the range <em>[0,2<sup>32</sup> - 1]</em>.
-Similarly, all results are in the range <em>[0,2<sup>32</sup> - 1]</em>.
-Note that <code>bit32.bnot(0)</code> is <code>0xFFFFFFFF</code>,
-which is different from <code>-1</code>.
-
-
-<p>
-<hr><h3><a name="pdf-bit32.arshift"><code>bit32.arshift (x, disp)</code></a></h3>
-
-
-<p>
-Returns the number <code>x</code> shifted <code>disp</code> bits to the right.
-The number <code>disp</code> may be any representable integer.
-Negative displacements shift to the left.
-
-
-<p>
-This shift operation is what is called arithmetic shift.
-Vacant bits on the left are filled
-with copies of the higher bit of <code>x</code>;
-vacant bits on the right are filled with zeros.
-In particular,
-displacements with absolute values higher than 31
-result in zero or <code>0xFFFFFFFF</code> (all original bits are shifted out).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.band"><code>bit32.band (···)</code></a></h3>
-
-
-<p>
-Returns the bitwise <em>and</em> of its operands.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.bnot"><code>bit32.bnot (x)</code></a></h3>
-
-
-<p>
-Returns the bitwise negation of <code>x</code>.
-For any integer <code>x</code>,
-the following identity holds:
-
-<pre>
- assert(bit32.bnot(x) == (-1 - x) % 2^32)
-</pre>
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.bor"><code>bit32.bor (···)</code></a></h3>
-
-
-<p>
-Returns the bitwise <em>or</em> of its operands.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.btest"><code>bit32.btest (···)</code></a></h3>
-
-
-<p>
-Returns a boolean signaling
-whether the bitwise <em>and</em> of its operands is different from zero.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.bxor"><code>bit32.bxor (···)</code></a></h3>
-
-
-<p>
-Returns the bitwise <em>exclusive or</em> of its operands.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.extract"><code>bit32.extract (n, field [, width])</code></a></h3>
-
-
-<p>
-Returns the unsigned number formed by the bits
-<code>field</code> to <code>field + width - 1</code> from <code>n</code>.
-Bits are numbered from 0 (least significant) to 31 (most significant).
-All accessed bits must be in the range <em>[0, 31]</em>.
-
-
-<p>
-The default for <code>width</code> is 1.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.replace"><code>bit32.replace (n, v, field [, width])</code></a></h3>
-
-
-<p>
-Returns a copy of <code>n</code> with
-the bits <code>field</code> to <code>field + width - 1</code>
-replaced by the value <code>v</code>.
-See <a href="#pdf-bit32.extract"><code>bit32.extract</code></a> for details about <code>field</code> and <code>width</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.lrotate"><code>bit32.lrotate (x, disp)</code></a></h3>
-
-
-<p>
-Returns the number <code>x</code> rotated <code>disp</code> bits to the left.
-The number <code>disp</code> may be any representable integer.
-
-
-<p>
-For any valid displacement,
-the following identity holds:
-
-<pre>
- assert(bit32.lrotate(x, disp) == bit32.lrotate(x, disp % 32))
-</pre><p>
-In particular,
-negative displacements rotate to the right.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.lshift"><code>bit32.lshift (x, disp)</code></a></h3>
-
-
-<p>
-Returns the number <code>x</code> shifted <code>disp</code> bits to the left.
-The number <code>disp</code> may be any representable integer.
-Negative displacements shift to the right.
-In any direction, vacant bits are filled with zeros.
-In particular,
-displacements with absolute values higher than 31
-result in zero (all bits are shifted out).
-
-
-<p>
-For positive displacements,
-the following equality holds:
-
-<pre>
- assert(bit32.lshift(b, disp) == (b * 2^disp) % 2^32)
-</pre>
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.rrotate"><code>bit32.rrotate (x, disp)</code></a></h3>
-
-
-<p>
-Returns the number <code>x</code> rotated <code>disp</code> bits to the right.
-The number <code>disp</code> may be any representable integer.
-
-
-<p>
-For any valid displacement,
-the following identity holds:
-
-<pre>
- assert(bit32.rrotate(x, disp) == bit32.rrotate(x, disp % 32))
-</pre><p>
-In particular,
-negative displacements rotate to the left.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-bit32.rshift"><code>bit32.rshift (x, disp)</code></a></h3>
-
-
-<p>
-Returns the number <code>x</code> shifted <code>disp</code> bits to the right.
-The number <code>disp</code> may be any representable integer.
-Negative displacements shift to the left.
-In any direction, vacant bits are filled with zeros.
-In particular,
-displacements with absolute values higher than 31
-result in zero (all bits are shifted out).
-
-
-<p>
-For positive displacements,
-the following equality holds:
-
-<pre>
- assert(bit32.rshift(b, disp) == math.floor(b % 2^32 / 2^disp))
-</pre>
-
-<p>
-This shift operation is what is called logical shift.
-
-
-
-
-
-
-
-<h2>6.8 – <a name="6.8">Input and Output Facilities</a></h2>
-
-<p>
-The I/O library provides two different styles for file manipulation.
-The first one uses implicit file descriptors;
-that is, there are operations to set a default input file and a
-default output file,
-and all input/output operations are over these default files.
-The second style uses explicit file descriptors.
-
-
-<p>
-When using implicit file descriptors,
-all operations are supplied by table <a name="pdf-io"><code>io</code></a>.
-When using explicit file descriptors,
-the operation <a href="#pdf-io.open"><code>io.open</code></a> returns a file descriptor
-and then all operations are supplied as methods of the file descriptor.
-
-
-<p>
-The table <code>io</code> also provides
-three predefined file descriptors with their usual meanings from C:
-<a name="pdf-io.stdin"><code>io.stdin</code></a>, <a name="pdf-io.stdout"><code>io.stdout</code></a>, and <a name="pdf-io.stderr"><code>io.stderr</code></a>.
-The I/O library never closes these files.
-
-
-<p>
-Unless otherwise stated,
-all I/O functions return <b>nil</b> on failure
-(plus an error message as a second result and
-a system-dependent error code as a third result)
-and some value different from <b>nil</b> on success.
-On non-Posix systems,
-the computation of the error message and error code
-in case of errors
-may be not thread safe,
-because they rely on the global C variable <code>errno</code>.
-
-
-<p>
-<hr><h3><a name="pdf-io.close"><code>io.close ([file])</code></a></h3>
-
-
-<p>
-Equivalent to <code>file:close()</code>.
-Without a <code>file</code>, closes the default output file.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.flush"><code>io.flush ()</code></a></h3>
-
-
-<p>
-Equivalent to <code>io.output():flush()</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.input"><code>io.input ([file])</code></a></h3>
-
-
-<p>
-When called with a file name, it opens the named file (in text mode),
-and sets its handle as the default input file.
-When called with a file handle,
-it simply sets this file handle as the default input file.
-When called without parameters,
-it returns the current default input file.
-
-
-<p>
-In case of errors this function raises the error,
-instead of returning an error code.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.lines"><code>io.lines ([filename ···])</code></a></h3>
-
-
-<p>
-Opens the given file name in read mode
-and returns an iterator function that
-works like <code>file:lines(···)</code> over the opened file.
-When the iterator function detects the end of file,
-it returns <b>nil</b> (to finish the loop) and automatically closes the file.
-
-
-<p>
-The call <code>io.lines()</code> (with no file name) is equivalent
-to <code>io.input():lines()</code>;
-that is, it iterates over the lines of the default input file.
-In this case it does not close the file when the loop ends.
-
-
-<p>
-In case of errors this function raises the error,
-instead of returning an error code.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.open"><code>io.open (filename [, mode])</code></a></h3>
-
-
-<p>
-This function opens a file,
-in the mode specified in the string <code>mode</code>.
-It returns a new file handle,
-or, in case of errors, <b>nil</b> plus an error message.
-
-
-<p>
-The <code>mode</code> string can be any of the following:
-
-<ul>
-<li><b>"<code>r</code>": </b> read mode (the default);</li>
-<li><b>"<code>w</code>": </b> write mode;</li>
-<li><b>"<code>a</code>": </b> append mode;</li>
-<li><b>"<code>r+</code>": </b> update mode, all previous data is preserved;</li>
-<li><b>"<code>w+</code>": </b> update mode, all previous data is erased;</li>
-<li><b>"<code>a+</code>": </b> append update mode, previous data is preserved,
- writing is only allowed at the end of file.</li>
-</ul><p>
-The <code>mode</code> string can also have a '<code>b</code>' at the end,
-which is needed in some systems to open the file in binary mode.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.output"><code>io.output ([file])</code></a></h3>
-
-
-<p>
-Similar to <a href="#pdf-io.input"><code>io.input</code></a>, but operates over the default output file.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.popen"><code>io.popen (prog [, mode])</code></a></h3>
-
-
-<p>
-This function is system dependent and is not available
-on all platforms.
-
-
-<p>
-Starts program <code>prog</code> in a separated process and returns
-a file handle that you can use to read data from this program
-(if <code>mode</code> is <code>"r"</code>, the default)
-or to write data to this program
-(if <code>mode</code> is <code>"w"</code>).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.read"><code>io.read (···)</code></a></h3>
-
-
-<p>
-Equivalent to <code>io.input():read(···)</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.tmpfile"><code>io.tmpfile ()</code></a></h3>
-
-
-<p>
-Returns a handle for a temporary file.
-This file is opened in update mode
-and it is automatically removed when the program ends.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.type"><code>io.type (obj)</code></a></h3>
-
-
-<p>
-Checks whether <code>obj</code> is a valid file handle.
-Returns the string <code>"file"</code> if <code>obj</code> is an open file handle,
-<code>"closed file"</code> if <code>obj</code> is a closed file handle,
-or <b>nil</b> if <code>obj</code> is not a file handle.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-io.write"><code>io.write (···)</code></a></h3>
-
-
-<p>
-Equivalent to <code>io.output():write(···)</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-file:close"><code>file:close ()</code></a></h3>
-
-
-<p>
-Closes <code>file</code>.
-Note that files are automatically closed when
-their handles are garbage collected,
-but that takes an unpredictable amount of time to happen.
-
-
-<p>
-When closing a file handle created with <a href="#pdf-io.popen"><code>io.popen</code></a>,
-<a href="#pdf-file:close"><code>file:close</code></a> returns the same values
-returned by <a href="#pdf-os.execute"><code>os.execute</code></a>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-file:flush"><code>file:flush ()</code></a></h3>
-
-
-<p>
-Saves any written data to <code>file</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-file:lines"><code>file:lines (···)</code></a></h3>
-
-
-<p>
-Returns an iterator function that,
-each time it is called,
-reads the file according to the given formats.
-When no format is given,
-uses "*l" as a default.
-As an example, the construction
-
-<pre>
- for c in file:lines(1) do <em>body</em> end
-</pre><p>
-will iterate over all characters of the file,
-starting at the current position.
-Unlike <a href="#pdf-io.lines"><code>io.lines</code></a>, this function does not close the file
-when the loop ends.
-
-
-<p>
-In case of errors this function raises the error,
-instead of returning an error code.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-file:read"><code>file:read (···)</code></a></h3>
-
-
-<p>
-Reads the file <code>file</code>,
-according to the given formats, which specify what to read.
-For each format,
-the function returns a string (or a number) with the characters read,
-or <b>nil</b> if it cannot read data with the specified format.
-When called without formats,
-it uses a default format that reads the next line
-(see below).
-
-
-<p>
-The available formats are
-
-<ul>
-
-<li><b>"<code>*n</code>": </b>
-reads a number;
-this is the only format that returns a number instead of a string.
-</li>
-
-<li><b>"<code>*a</code>": </b>
-reads the whole file, starting at the current position.
-On end of file, it returns the empty string.
-</li>
-
-<li><b>"<code>*l</code>": </b>
-reads the next line skipping the end of line,
-returning <b>nil</b> on end of file.
-This is the default format.
-</li>
-
-<li><b>"<code>*L</code>": </b>
-reads the next line keeping the end of line (if present),
-returning <b>nil</b> on end of file.
-</li>
-
-<li><b><em>number</em>: </b>
-reads a string with up to this number of bytes,
-returning <b>nil</b> on end of file.
-If number is zero,
-it reads nothing and returns an empty string,
-or <b>nil</b> on end of file.
-</li>
-
-</ul>
-
-
-
-<p>
-<hr><h3><a name="pdf-file:seek"><code>file:seek ([whence [, offset]])</code></a></h3>
-
-
-<p>
-Sets and gets the file position,
-measured from the beginning of the file,
-to the position given by <code>offset</code> plus a base
-specified by the string <code>whence</code>, as follows:
-
-<ul>
-<li><b>"<code>set</code>": </b> base is position 0 (beginning of the file);</li>
-<li><b>"<code>cur</code>": </b> base is current position;</li>
-<li><b>"<code>end</code>": </b> base is end of file;</li>
-</ul><p>
-In case of success, <code>seek</code> returns the final file position,
-measured in bytes from the beginning of the file.
-If <code>seek</code> fails, it returns <b>nil</b>,
-plus a string describing the error.
-
-
-<p>
-The default value for <code>whence</code> is <code>"cur"</code>,
-and for <code>offset</code> is 0.
-Therefore, the call <code>file:seek()</code> returns the current
-file position, without changing it;
-the call <code>file:seek("set")</code> sets the position to the
-beginning of the file (and returns 0);
-and the call <code>file:seek("end")</code> sets the position to the
-end of the file, and returns its size.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-file:setvbuf"><code>file:setvbuf (mode [, size])</code></a></h3>
-
-
-<p>
-Sets the buffering mode for an output file.
-There are three available modes:
-
-<ul>
-
-<li><b>"<code>no</code>": </b>
-no buffering; the result of any output operation appears immediately.
-</li>
-
-<li><b>"<code>full</code>": </b>
-full buffering; output operation is performed only
-when the buffer is full or when
-you explicitly <code>flush</code> the file (see <a href="#pdf-io.flush"><code>io.flush</code></a>).
-</li>
-
-<li><b>"<code>line</code>": </b>
-line buffering; output is buffered until a newline is output
-or there is any input from some special files
-(such as a terminal device).
-</li>
-
-</ul><p>
-For the last two cases, <code>size</code>
-specifies the size of the buffer, in bytes.
-The default is an appropriate size.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-file:write"><code>file:write (···)</code></a></h3>
-
-
-<p>
-Writes the value of each of its arguments to <code>file</code>.
-The arguments must be strings or numbers.
-
-
-<p>
-In case of success, this function returns <code>file</code>.
-Otherwise it returns <b>nil</b> plus a string describing the error.
-
-
-
-
-
-
-
-<h2>6.9 – <a name="6.9">Operating System Facilities</a></h2>
-
-<p>
-This library is implemented through table <a name="pdf-os"><code>os</code></a>.
-
-
-<p>
-<hr><h3><a name="pdf-os.clock"><code>os.clock ()</code></a></h3>
-
-
-<p>
-Returns an approximation of the amount in seconds of CPU time
-used by the program.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.date"><code>os.date ([format [, time]])</code></a></h3>
-
-
-<p>
-Returns a string or a table containing date and time,
-formatted according to the given string <code>format</code>.
-
-
-<p>
-If the <code>time</code> argument is present,
-this is the time to be formatted
-(see the <a href="#pdf-os.time"><code>os.time</code></a> function for a description of this value).
-Otherwise, <code>date</code> formats the current time.
-
-
-<p>
-If <code>format</code> starts with '<code>!</code>',
-then the date is formatted in Coordinated Universal Time.
-After this optional character,
-if <code>format</code> is the string "<code>*t</code>",
-then <code>date</code> returns a table with the following fields:
-<code>year</code> (four digits), <code>month</code> (1–12), <code>day</code> (1–31),
-<code>hour</code> (0–23), <code>min</code> (0–59), <code>sec</code> (0–61),
-<code>wday</code> (weekday, Sunday is 1),
-<code>yday</code> (day of the year),
-and <code>isdst</code> (daylight saving flag, a boolean).
-This last field may be absent
-if the information is not available.
-
-
-<p>
-If <code>format</code> is not "<code>*t</code>",
-then <code>date</code> returns the date as a string,
-formatted according to the same rules as the ISO C function <code>strftime</code>.
-
-
-<p>
-When called without arguments,
-<code>date</code> returns a reasonable date and time representation that depends on
-the host system and on the current locale
-(that is, <code>os.date()</code> is equivalent to <code>os.date("%c")</code>).
-
-
-<p>
-On non-Posix systems,
-this function may be not thread safe
-because of its reliance on C function <code>gmtime</code> and C function <code>localtime</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.difftime"><code>os.difftime (t2, t1)</code></a></h3>
-
-
-<p>
-Returns the number of seconds from time <code>t1</code> to time <code>t2</code>.
-In POSIX, Windows, and some other systems,
-this value is exactly <code>t2</code><em>-</em><code>t1</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.execute"><code>os.execute ([command])</code></a></h3>
-
-
-<p>
-This function is equivalent to the ISO C function <code>system</code>.
-It passes <code>command</code> to be executed by an operating system shell.
-Its first result is <b>true</b>
-if the command terminated successfully,
-or <b>nil</b> otherwise.
-After this first result
-the function returns a string and a number,
-as follows:
-
-<ul>
-
-<li><b>"<code>exit</code>": </b>
-the command terminated normally;
-the following number is the exit status of the command.
-</li>
-
-<li><b>"<code>signal</code>": </b>
-the command was terminated by a signal;
-the following number is the signal that terminated the command.
-</li>
-
-</ul>
-
-<p>
-When called without a <code>command</code>,
-<code>os.execute</code> returns a boolean that is true if a shell is available.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.exit"><code>os.exit ([code [, close])</code></a></h3>
-
-
-<p>
-Calls the ISO C function <code>exit</code> to terminate the host program.
-If <code>code</code> is <b>true</b>,
-the returned status is <code>EXIT_SUCCESS</code>;
-if <code>code</code> is <b>false</b>,
-the returned status is <code>EXIT_FAILURE</code>;
-if <code>code</code> is a number,
-the returned status is this number.
-The default value for <code>code</code> is <b>true</b>.
-
-
-<p>
-If the optional second argument <code>close</code> is true,
-closes the Lua state before exiting.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.getenv"><code>os.getenv (varname)</code></a></h3>
-
-
-<p>
-Returns the value of the process environment variable <code>varname</code>,
-or <b>nil</b> if the variable is not defined.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.remove"><code>os.remove (filename)</code></a></h3>
-
-
-<p>
-Deletes the file (or empty directory, on POSIX systems)
-with the given name.
-If this function fails, it returns <b>nil</b>,
-plus a string describing the error and the error code.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.rename"><code>os.rename (oldname, newname)</code></a></h3>
-
-
-<p>
-Renames file or directory named <code>oldname</code> to <code>newname</code>.
-If this function fails, it returns <b>nil</b>,
-plus a string describing the error and the error code.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.setlocale"><code>os.setlocale (locale [, category])</code></a></h3>
-
-
-<p>
-Sets the current locale of the program.
-<code>locale</code> is a system-dependent string specifying a locale;
-<code>category</code> is an optional string describing which category to change:
-<code>"all"</code>, <code>"collate"</code>, <code>"ctype"</code>,
-<code>"monetary"</code>, <code>"numeric"</code>, or <code>"time"</code>;
-the default category is <code>"all"</code>.
-The function returns the name of the new locale,
-or <b>nil</b> if the request cannot be honored.
-
-
-<p>
-If <code>locale</code> is the empty string,
-the current locale is set to an implementation-defined native locale.
-If <code>locale</code> is the string "<code>C</code>",
-the current locale is set to the standard C locale.
-
-
-<p>
-When called with <b>nil</b> as the first argument,
-this function only returns the name of the current locale
-for the given category.
-
-
-<p>
-This function may be not thread safe
-because of its reliance on C function <code>setlocale</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.time"><code>os.time ([table])</code></a></h3>
-
-
-<p>
-Returns the current time when called without arguments,
-or a time representing the date and time specified by the given table.
-This table must have fields <code>year</code>, <code>month</code>, and <code>day</code>,
-and may have fields
-<code>hour</code> (default is 12),
-<code>min</code> (default is 0),
-<code>sec</code> (default is 0),
-and <code>isdst</code> (default is <b>nil</b>).
-For a description of these fields, see the <a href="#pdf-os.date"><code>os.date</code></a> function.
-
-
-<p>
-The returned value is a number, whose meaning depends on your system.
-In POSIX, Windows, and some other systems,
-this number counts the number
-of seconds since some given start time (the "epoch").
-In other systems, the meaning is not specified,
-and the number returned by <code>time</code> can be used only as an argument to
-<a href="#pdf-os.date"><code>os.date</code></a> and <a href="#pdf-os.difftime"><code>os.difftime</code></a>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-os.tmpname"><code>os.tmpname ()</code></a></h3>
-
-
-<p>
-Returns a string with a file name that can
-be used for a temporary file.
-The file must be explicitly opened before its use
-and explicitly removed when no longer needed.
-
-
-<p>
-On POSIX systems,
-this function also creates a file with that name,
-to avoid security risks.
-(Someone else might create the file with wrong permissions
-in the time between getting the name and creating the file.)
-You still have to open the file to use it
-and to remove it (even if you do not use it).
-
-
-<p>
-When possible,
-you may prefer to use <a href="#pdf-io.tmpfile"><code>io.tmpfile</code></a>,
-which automatically removes the file when the program ends.
-
-
-
-
-
-
-
-<h2>6.10 – <a name="6.10">The Debug Library</a></h2>
-
-<p>
-This library provides
-the functionality of the debug interface (<a href="#4.9">§4.9</a>) to Lua programs.
-You should exert care when using this library.
-Several of its functions
-violate basic assumptions about Lua code
-(e.g., that variables local to a function
-cannot be accessed from outside;
-that userdata metatables cannot be changed by Lua code;
-that Lua programs do not crash)
-and therefore can compromise otherwise secure code.
-Moreover, some functions in this library may be slow.
-
-
-<p>
-All functions in this library are provided
-inside the <a name="pdf-debug"><code>debug</code></a> table.
-All functions that operate over a thread
-have an optional first argument which is the
-thread to operate over.
-The default is always the current thread.
-
-
-<p>
-<hr><h3><a name="pdf-debug.debug"><code>debug.debug ()</code></a></h3>
-
-
-<p>
-Enters an interactive mode with the user,
-running each string that the user enters.
-Using simple commands and other debug facilities,
-the user can inspect global and local variables,
-change their values, evaluate expressions, and so on.
-A line containing only the word <code>cont</code> finishes this function,
-so that the caller continues its execution.
-
-
-<p>
-Note that commands for <code>debug.debug</code> are not lexically nested
-within any function and so have no direct access to local variables.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.gethook"><code>debug.gethook ([thread])</code></a></h3>
-
-
-<p>
-Returns the current hook settings of the thread, as three values:
-the current hook function, the current hook mask,
-and the current hook count
-(as set by the <a href="#pdf-debug.sethook"><code>debug.sethook</code></a> function).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.getinfo"><code>debug.getinfo ([thread,] f [, what])</code></a></h3>
-
-
-<p>
-Returns a table with information about a function.
-You can give the function directly
-or you can give a number as the value of <code>f</code>,
-which means the function running at level <code>f</code> of the call stack
-of the given thread:
-level 0 is the current function (<code>getinfo</code> itself);
-level 1 is the function that called <code>getinfo</code>
-(except for tail calls, which do not count on the stack);
-and so on.
-If <code>f</code> is a number larger than the number of active functions,
-then <code>getinfo</code> returns <b>nil</b>.
-
-
-<p>
-The returned table can contain all the fields returned by <a href="#lua_getinfo"><code>lua_getinfo</code></a>,
-with the string <code>what</code> describing which fields to fill in.
-The default for <code>what</code> is to get all information available,
-except the table of valid lines.
-If present,
-the option '<code>f</code>'
-adds a field named <code>func</code> with the function itself.
-If present,
-the option '<code>L</code>'
-adds a field named <code>activelines</code> with the table of
-valid lines.
-
-
-<p>
-For instance, the expression <code>debug.getinfo(1,"n").name</code> returns
-a table with a name for the current function,
-if a reasonable name can be found,
-and the expression <code>debug.getinfo(print)</code>
-returns a table with all available information
-about the <a href="#pdf-print"><code>print</code></a> function.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.getlocal"><code>debug.getlocal ([thread,] f, local)</code></a></h3>
-
-
-<p>
-This function returns the name and the value of the local variable
-with index <code>local</code> of the function at level <code>f</code> of the stack.
-This function accesses not only explicit local variables,
-but also parameters, temporaries, etc.
-
-
-<p>
-The first parameter or local variable has index 1, and so on,
-until the last active variable.
-Negative indices refer to vararg parameters;
--1 is the first vararg parameter.
-The function returns <b>nil</b> if there is no variable with the given index,
-and raises an error when called with a level out of range.
-(You can call <a href="#pdf-debug.getinfo"><code>debug.getinfo</code></a> to check whether the level is valid.)
-
-
-<p>
-Variable names starting with '<code>(</code>' (open parenthesis)
-represent internal variables
-(loop control variables, temporaries, varargs, and C function locals).
-
-
-<p>
-The parameter <code>f</code> may also be a function.
-In that case, <code>getlocal</code> returns only the name of function parameters.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.getmetatable"><code>debug.getmetatable (value)</code></a></h3>
-
-
-<p>
-Returns the metatable of the given <code>value</code>
-or <b>nil</b> if it does not have a metatable.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.getregistry"><code>debug.getregistry ()</code></a></h3>
-
-
-<p>
-Returns the registry table (see <a href="#4.5">§4.5</a>).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.getupvalue"><code>debug.getupvalue (f, up)</code></a></h3>
-
-
-<p>
-This function returns the name and the value of the upvalue
-with index <code>up</code> of the function <code>f</code>.
-The function returns <b>nil</b> if there is no upvalue with the given index.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.getuservalue"><code>debug.getuservalue (u)</code></a></h3>
-
-
-<p>
-Returns the Lua value associated to <code>u</code>.
-If <code>u</code> is not a userdata,
-returns <b>nil</b>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.sethook"><code>debug.sethook ([thread,] hook, mask [, count])</code></a></h3>
-
-
-<p>
-Sets the given function as a hook.
-The string <code>mask</code> and the number <code>count</code> describe
-when the hook will be called.
-The string mask may have any combination of the following characters,
-with the given meaning:
-
-<ul>
-<li><b>'<code>c</code>': </b> the hook is called every time Lua calls a function;</li>
-<li><b>'<code>r</code>': </b> the hook is called every time Lua returns from a function;</li>
-<li><b>'<code>l</code>': </b> the hook is called every time Lua enters a new line of code.</li>
-</ul><p>
-Moreover,
-with a <code>count</code> different from zero,
-the hook is called also after every <code>count</code> instructions.
-
-
-<p>
-When called without arguments,
-<a href="#pdf-debug.sethook"><code>debug.sethook</code></a> turns off the hook.
-
-
-<p>
-When the hook is called, its first parameter is a string
-describing the event that has triggered its call:
-<code>"call"</code> (or <code>"tail call"</code>),
-<code>"return"</code>,
-<code>"line"</code>, and <code>"count"</code>.
-For line events,
-the hook also gets the new line number as its second parameter.
-Inside a hook,
-you can call <code>getinfo</code> with level 2 to get more information about
-the running function
-(level 0 is the <code>getinfo</code> function,
-and level 1 is the hook function).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.setlocal"><code>debug.setlocal ([thread,] level, local, value)</code></a></h3>
-
-
-<p>
-This function assigns the value <code>value</code> to the local variable
-with index <code>local</code> of the function at level <code>level</code> of the stack.
-The function returns <b>nil</b> if there is no local
-variable with the given index,
-and raises an error when called with a <code>level</code> out of range.
-(You can call <code>getinfo</code> to check whether the level is valid.)
-Otherwise, it returns the name of the local variable.
-
-
-<p>
-See <a href="#pdf-debug.getlocal"><code>debug.getlocal</code></a> for more information about
-variable indices and names.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.setmetatable"><code>debug.setmetatable (value, table)</code></a></h3>
-
-
-<p>
-Sets the metatable for the given <code>value</code> to the given <code>table</code>
-(which can be <b>nil</b>).
-Returns <code>value</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.setupvalue"><code>debug.setupvalue (f, up, value)</code></a></h3>
-
-
-<p>
-This function assigns the value <code>value</code> to the upvalue
-with index <code>up</code> of the function <code>f</code>.
-The function returns <b>nil</b> if there is no upvalue
-with the given index.
-Otherwise, it returns the name of the upvalue.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.setuservalue"><code>debug.setuservalue (udata, value)</code></a></h3>
-
-
-<p>
-Sets the given <code>value</code> as
-the Lua value associated to the given <code>udata</code>.
-<code>value</code> must be a table or <b>nil</b>;
-<code>udata</code> must be a full userdata.
-
-
-<p>
-Returns <code>udata</code>.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.traceback"><code>debug.traceback ([thread,] [message [, level]])</code></a></h3>
-
-
-<p>
-If <code>message</code> is present but is neither a string nor <b>nil</b>,
-this function returns <code>message</code> without further processing.
-Otherwise,
-it returns a string with a traceback of the call stack.
-An optional <code>message</code> string is appended
-at the beginning of the traceback.
-An optional <code>level</code> number tells at which level
-to start the traceback
-(default is 1, the function calling <code>traceback</code>).
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.upvalueid"><code>debug.upvalueid (f, n)</code></a></h3>
-
-
-<p>
-Returns an unique identifier (as a light userdata)
-for the upvalue numbered <code>n</code>
-from the given function.
-
-
-<p>
-These unique identifiers allow a program to check whether different
-closures share upvalues.
-Lua closures that share an upvalue
-(that is, that access a same external local variable)
-will return identical ids for those upvalue indices.
-
-
-
-
-<p>
-<hr><h3><a name="pdf-debug.upvaluejoin"><code>debug.upvaluejoin (f1, n1, f2, n2)</code></a></h3>
-
-
-<p>
-Make the <code>n1</code>-th upvalue of the Lua closure <code>f1</code>
-refer to the <code>n2</code>-th upvalue of the Lua closure <code>f2</code>.
-
-
-
-
-
-
-
-<h1>7 – <a name="7">Lua Standalone</a></h1>
-
-<p>
-Although Lua has been designed as an extension language,
-to be embedded in a host C program,
-it is also frequently used as a standalone language.
-An interpreter for Lua as a standalone language,
-called simply <code>lua</code>,
-is provided with the standard distribution.
-The standalone interpreter includes
-all standard libraries, including the debug library.
-Its usage is:
-
-<pre>
- lua [options] [script [args]]
-</pre><p>
-The options are:
-
-<ul>
-<li><b><code>-e <em>stat</em></code>: </b> executes string <em>stat</em>;</li>
-<li><b><code>-l <em>mod</em></code>: </b> "requires" <em>mod</em>;</li>
-<li><b><code>-i</code>: </b> enters interactive mode after running <em>script</em>;</li>
-<li><b><code>-v</code>: </b> prints version information;</li>
-<li><b><code>-E</code>: </b> ignores environment variables;</li>
-<li><b><code>--</code>: </b> stops handling options;</li>
-<li><b><code>-</code>: </b> executes <code>stdin</code> as a file and stops handling options.</li>
-</ul><p>
-After handling its options, <code>lua</code> runs the given <em>script</em>,
-passing to it the given <em>args</em> as string arguments.
-When called without arguments,
-<code>lua</code> behaves as <code>lua -v -i</code>
-when the standard input (<code>stdin</code>) is a terminal,
-and as <code>lua -</code> otherwise.
-
-
-<p>
-When called without option <code>-E</code>,
-the interpreter checks for an environment variable <a name="pdf-LUA_INIT_5_2"><code>LUA_INIT_5_2</code></a>
-(or <a name="pdf-LUA_INIT"><code>LUA_INIT</code></a> if it is not defined)
-before running any argument.
-If the variable content has the format <code>@<em>filename</em></code>,
-then <code>lua</code> executes the file.
-Otherwise, <code>lua</code> executes the string itself.
-
-
-<p>
-When called with option <code>-E</code>,
-besides ignoring <code>LUA_INIT</code>,
-Lua also ignores
-the values of <code>LUA_PATH</code> and <code>LUA_CPATH</code>,
-setting the values of
-<a href="#pdf-package.path"><code>package.path</code></a> and <a href="#pdf-package.cpath"><code>package.cpath</code></a>
-with the default paths defined in <code>luaconf.h</code>.
-
-
-<p>
-All options are handled in order, except <code>-i</code> and <code>-E</code>.
-For instance, an invocation like
-
-<pre>
- $ lua -e'a=1' -e 'print(a)' script.lua
-</pre><p>
-will first set <code>a</code> to 1, then print the value of <code>a</code>,
-and finally run the file <code>script.lua</code> with no arguments.
-(Here <code>$</code> is the shell prompt. Your prompt may be different.)
-
-
-<p>
-Before starting to run the script,
-<code>lua</code> collects all arguments in the command line
-in a global table called <code>arg</code>.
-The script name is stored at index 0,
-the first argument after the script name goes to index 1,
-and so on.
-Any arguments before the script name
-(that is, the interpreter name plus the options)
-go to negative indices.
-For instance, in the call
-
-<pre>
- $ lua -la b.lua t1 t2
-</pre><p>
-the interpreter first runs the file <code>a.lua</code>,
-then creates a table
-
-<pre>
- arg = { [-2] = "lua", [-1] = "-la",
- [0] = "b.lua",
- [1] = "t1", [2] = "t2" }
-</pre><p>
-and finally runs the file <code>b.lua</code>.
-The script is called with <code>arg[1]</code>, <code>arg[2]</code>, ...
-as arguments;
-it can also access these arguments with the vararg expression '<code>...</code>'.
-
-
-<p>
-In interactive mode,
-if you write an incomplete statement,
-the interpreter waits for its completion
-by issuing a different prompt.
-
-
-<p>
-In case of unprotected errors in the script,
-the interpreter reports the error to the standard error stream.
-If the error object is a string,
-the interpreter adds a stack traceback to it.
-Otherwise, if the error object has a metamethod <code>__tostring</code>,
-the interpreter calls this metamethod to produce the final message.
-Finally, if the error object is <b>nil</b>,
-the interpreter does not report the error.
-
-
-<p>
-When finishing normally,
-the interpreter closes its main Lua state
-(see <a href="#lua_close"><code>lua_close</code></a>).
-The script can avoid this step by
-calling <a href="#pdf-os.exit"><code>os.exit</code></a> to terminate.
-
-
-<p>
-To allow the use of Lua as a
-script interpreter in Unix systems,
-the standalone interpreter skips
-the first line of a chunk if it starts with <code>#</code>.
-Therefore, Lua scripts can be made into executable programs
-by using <code>chmod +x</code> and the <code>#!</code> form,
-as in
-
-<pre>
- #!/usr/local/bin/lua
-</pre><p>
-(Of course,
-the location of the Lua interpreter may be different in your machine.
-If <code>lua</code> is in your <code>PATH</code>,
-then
-
-<pre>
- #!/usr/bin/env lua
-</pre><p>
-is a more portable solution.)
-
-
-
-<h1>8 – <a name="8">Incompatibilities with the Previous Version</a></h1>
-
-<p>
-Here we list the incompatibilities that you may find when moving a program
-from Lua 5.1 to Lua 5.2.
-You can avoid some incompatibilities by compiling Lua with
-appropriate options (see file <code>luaconf.h</code>).
-However,
-all these compatibility options will be removed in the next version of Lua.
-Similarly,
-all features marked as deprecated in Lua 5.1
-have been removed in Lua 5.2.
-
-
-
-<h2>8.1 – <a name="8.1">Changes in the Language</a></h2>
-<ul>
-
-<li>
-The concept of <em>environment</em> changed.
-Only Lua functions have environments.
-To set the environment of a Lua function,
-use the variable <code>_ENV</code> or the function <a href="#pdf-load"><code>load</code></a>.
-
-
-<p>
-C functions no longer have environments.
-Use an upvalue with a shared table if you need to keep
-shared state among several C functions.
-(You may use <a href="#luaL_setfuncs"><code>luaL_setfuncs</code></a> to open a C library
-with all functions sharing a common upvalue.)
-
-
-<p>
-To manipulate the "environment" of a userdata
-(which is now called user value),
-use the new functions
-<a href="#lua_getuservalue"><code>lua_getuservalue</code></a> and <a href="#lua_setuservalue"><code>lua_setuservalue</code></a>.
-</li>
-
-<li>
-Lua identifiers cannot use locale-dependent letters.
-</li>
-
-<li>
-Doing a step or a full collection in the garbage collector
-does not restart the collector if it has been stopped.
-</li>
-
-<li>
-Weak tables with weak keys now perform like <em>ephemeron tables</em>.
-</li>
-
-<li>
-The event <em>tail return</em> in debug hooks was removed.
-Instead, tail calls generate a special new event,
-<em>tail call</em>, so that the debugger can know that
-there will not be a corresponding return event.
-</li>
-
-<li>
-Equality between function values has changed.
-Now, a function definition may not create a new value;
-it may reuse some previous value if there is no
-observable difference to the new function.
-</li>
-
-</ul>
-
-
-
-
-<h2>8.2 – <a name="8.2">Changes in the Libraries</a></h2>
-<ul>
-
-<li>
-Function <code>module</code> is deprecated.
-It is easy to set up a module with regular Lua code.
-Modules are not expected to set global variables.
-</li>
-
-<li>
-Functions <code>setfenv</code> and <code>getfenv</code> were removed,
-because of the changes in environments.
-</li>
-
-<li>
-Function <code>math.log10</code> is deprecated.
-Use <a href="#pdf-math.log"><code>math.log</code></a> with 10 as its second argument, instead.
-</li>
-
-<li>
-Function <code>loadstring</code> is deprecated.
-Use <code>load</code> instead; it now accepts string arguments
-and are exactly equivalent to <code>loadstring</code>.
-</li>
-
-<li>
-Function <code>table.maxn</code> is deprecated.
-Write it in Lua if you really need it.
-</li>
-
-<li>
-Function <code>os.execute</code> now returns <b>true</b> when command
-terminates successfully and <b>nil</b> plus error information
-otherwise.
-</li>
-
-<li>
-Function <code>unpack</code> was moved into the table library
-and therefore must be called as <a href="#pdf-table.unpack"><code>table.unpack</code></a>.
-</li>
-
-<li>
-Character class <code>%z</code> in patterns is deprecated,
-as now patterns may contain '<code>\0</code>' as a regular character.
-</li>
-
-<li>
-The table <code>package.loaders</code> was renamed <code>package.searchers</code>.
-</li>
-
-<li>
-Lua does not have bytecode verification anymore.
-So, all functions that load code
-(<a href="#pdf-load"><code>load</code></a> and <a href="#pdf-loadfile"><code>loadfile</code></a>)
-are potentially insecure when loading untrusted binary data.
-(Actually, those functions were already insecure because
-of flaws in the verification algorithm.)
-When in doubt,
-use the <code>mode</code> argument of those functions
-to restrict them to loading textual chunks.
-</li>
-
-<li>
-The standard paths in the official distribution may
-change between versions.
-</li>
-
-</ul>
-
-
-
-
-<h2>8.3 – <a name="8.3">Changes in the API</a></h2>
-<ul>
-
-<li>
-Pseudoindex <code>LUA_GLOBALSINDEX</code> was removed.
-You must get the global environment from the registry
-(see <a href="#4.5">§4.5</a>).
-</li>
-
-<li>
-Pseudoindex <code>LUA_ENVIRONINDEX</code>
-and functions <code>lua_getfenv</code>/<code>lua_setfenv</code>
-were removed,
-as C functions no longer have environments.
-</li>
-
-<li>
-Function <code>luaL_register</code> is deprecated.
-Use <a href="#luaL_setfuncs"><code>luaL_setfuncs</code></a> so that your module does not create globals.
-(Modules are not expected to set global variables anymore.)
-</li>
-
-<li>
-The <code>osize</code> argument to the allocation function
-may not be zero when creating a new block,
-that is, when <code>ptr</code> is <code>NULL</code>
-(see <a href="#lua_Alloc"><code>lua_Alloc</code></a>).
-Use only the test <code>ptr == NULL</code> to check whether
-the block is new.
-</li>
-
-<li>
-Finalizers (<code>__gc</code> metamethods) for userdata are called in the
-reverse order that they were marked for finalization,
-not that they were created (see <a href="#2.5.1">§2.5.1</a>).
-(Most userdata are marked immediately after they are created.)
-Moreover,
-if the metatable does not have a <code>__gc</code> field when set,
-the finalizer will not be called,
-even if it is set later.
-</li>
-
-<li>
-<code>luaL_typerror</code> was removed.
-Write your own version if you need it.
-</li>
-
-<li>
-Function <code>lua_cpcall</code> is deprecated.
-You can simply push the function with <a href="#lua_pushcfunction"><code>lua_pushcfunction</code></a>
-and call it with <a href="#lua_pcall"><code>lua_pcall</code></a>.
-</li>
-
-<li>
-Functions <code>lua_equal</code> and <code>lua_lessthan</code> are deprecated.
-Use the new <a href="#lua_compare"><code>lua_compare</code></a> with appropriate options instead.
-</li>
-
-<li>
-Function <code>lua_objlen</code> was renamed <a href="#lua_rawlen"><code>lua_rawlen</code></a>.
-</li>
-
-<li>
-Function <a href="#lua_load"><code>lua_load</code></a> has an extra parameter, <code>mode</code>.
-Pass <code>NULL</code> to simulate the old behavior.
-</li>
-
-<li>
-Function <a href="#lua_resume"><code>lua_resume</code></a> has an extra parameter, <code>from</code>.
-Pass <code>NULL</code> or the thread doing the call.
-</li>
-
-</ul>
-
-
-
-
-<h1>9 – <a name="9">The Complete Syntax of Lua</a></h1>
-
-<p>
-Here is the complete syntax of Lua in extended BNF.
-(It does not describe operator precedences.)
-
-
-
-
-<pre>
-
- chunk ::= block
-
- block ::= {stat} [retstat]
-
- stat ::= ‘<b>;</b>’ |
- varlist ‘<b>=</b>’ explist |
- functioncall |
- label |
- <b>break</b> |
- <b>goto</b> Name |
- <b>do</b> block <b>end</b> |
- <b>while</b> exp <b>do</b> block <b>end</b> |
- <b>repeat</b> block <b>until</b> exp |
- <b>if</b> exp <b>then</b> block {<b>elseif</b> exp <b>then</b> block} [<b>else</b> block] <b>end</b> |
- <b>for</b> Name ‘<b>=</b>’ exp ‘<b>,</b>’ exp [‘<b>,</b>’ exp] <b>do</b> block <b>end</b> |
- <b>for</b> namelist <b>in</b> explist <b>do</b> block <b>end</b> |
- <b>function</b> funcname funcbody |
- <b>local</b> <b>function</b> Name funcbody |
- <b>local</b> namelist [‘<b>=</b>’ explist]
-
- retstat ::= <b>return</b> [explist] [‘<b>;</b>’]
-
- label ::= ‘<b>::</b>’ Name ‘<b>::</b>’
-
- funcname ::= Name {‘<b>.</b>’ Name} [‘<b>:</b>’ Name]
-
- varlist ::= var {‘<b>,</b>’ var}
-
- var ::= Name | prefixexp ‘<b>[</b>’ exp ‘<b>]</b>’ | prefixexp ‘<b>.</b>’ Name
-
- namelist ::= Name {‘<b>,</b>’ Name}
-
- explist ::= exp {‘<b>,</b>’ exp}
-
- exp ::= <b>nil</b> | <b>false</b> | <b>true</b> | Number | String | ‘<b>...</b>’ | functiondef |
- prefixexp | tableconstructor | exp binop exp | unop exp
-
- prefixexp ::= var | functioncall | ‘<b>(</b>’ exp ‘<b>)</b>’
-
- functioncall ::= prefixexp args | prefixexp ‘<b>:</b>’ Name args
-
- args ::= ‘<b>(</b>’ [explist] ‘<b>)</b>’ | tableconstructor | String
-
- functiondef ::= <b>function</b> funcbody
-
- funcbody ::= ‘<b>(</b>’ [parlist] ‘<b>)</b>’ block <b>end</b>
-
- parlist ::= namelist [‘<b>,</b>’ ‘<b>...</b>’] | ‘<b>...</b>’
-
- tableconstructor ::= ‘<b>{</b>’ [fieldlist] ‘<b>}</b>’
-
- fieldlist ::= field {fieldsep field} [fieldsep]
-
- field ::= ‘<b>[</b>’ exp ‘<b>]</b>’ ‘<b>=</b>’ exp | Name ‘<b>=</b>’ exp | exp
-
- fieldsep ::= ‘<b>,</b>’ | ‘<b>;</b>’
-
- binop ::= ‘<b>+</b>’ | ‘<b>-</b>’ | ‘<b>*</b>’ | ‘<b>/</b>’ | ‘<b>^</b>’ | ‘<b>%</b>’ | ‘<b>..</b>’ |
- ‘<b><</b>’ | ‘<b><=</b>’ | ‘<b>></b>’ | ‘<b>>=</b>’ | ‘<b>==</b>’ | ‘<b>~=</b>’ |
- <b>and</b> | <b>or</b>
-
- unop ::= ‘<b>-</b>’ | <b>not</b> | ‘<b>#</b>’
-
-</pre>
-
-<p>
-
-
-
-
-
-
-
-<HR>
-<SMALL CLASS="footer">
-Last update:
-Mon Feb 23 22:24:44 BRT 2015
-</SMALL>
-<!--
-Last change: revised for Lua 5.2.4
--->
-
-</body></html>
-
diff --git a/Build/source/libs/lua52/lua52-src/doc/osi-certified-72x60.png b/Build/source/libs/lua52/lua52-src/doc/osi-certified-72x60.png Binary files differdeleted file mode 100644 index 07df5f6ee7a..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/osi-certified-72x60.png +++ /dev/null diff --git a/Build/source/libs/lua52/lua52-src/doc/readme.html b/Build/source/libs/lua52/lua52-src/doc/readme.html deleted file mode 100644 index 82dfe8119b6..00000000000 --- a/Build/source/libs/lua52/lua52-src/doc/readme.html +++ /dev/null @@ -1,417 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<HTML>
-<HEAD>
-<TITLE>Lua 5.2 readme</TITLE>
-<LINK REL="stylesheet" TYPE="text/css" HREF="lua.css">
-<META HTTP-EQUIV="content-type" CONTENT="text/html; charset=iso-8859-1">
-<STYLE TYPE="text/css">
-blockquote, .display {
- border: solid #a0a0a0 2px ;
- border-radius: 8px ;
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- margin: 0px ;
-}
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-.display {
- word-spacing: 0.25em ;
-}
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-dl.display dd {
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-tt, kbd, code {
- font-size: 12pt ;
-}
-</STYLE>
-</HEAD>
-
-<BODY>
-
-<HR>
-<H1>
-<A HREF="http://www.lua.org/"><IMG SRC="logo.gif" ALT="Lua" BORDER=0></A>
-Welcome to Lua 5.2
-</H1>
-
-<P>
-<A HREF="#about">about</A>
-·
-<A HREF="#install">installation</A>
-·
-<A HREF="#changes">changes</A>
-·
-<A HREF="#license">license</A>
-·
-<A HREF="contents.html">reference manual</A>
-
-<H2><A NAME="about">About Lua</A></H2>
-
-<P>
-Lua is a powerful, fast, lightweight, embeddable scripting language
-developed by a
-<A HREF="http://www.lua.org/authors.html">team</A>
-at
-<A HREF="http://www.puc-rio.br/">PUC-Rio</A>,
-the Pontifical Catholic University of Rio de Janeiro in Brazil.
-Lua is
-<A HREF="#license">free software</A>
-used in many products and projects around the world.
-
-<P>
-Lua's
-<A HREF="http://www.lua.org/">official web site</A>
-provides complete information
-about Lua,
-including
-an
-<A HREF="http://www.lua.org/about.html">executive summary</A>
-and
-updated
-<A HREF="http://www.lua.org/docs.html">documentation</A>,
-especially the
-<A HREF="http://www.lua.org/manual/5.2/">reference manual</A>,
-which may differ slightly from the
-<A HREF="contents.html">local copy</A>
-distributed in this package.
-
-<H2><A NAME="install">Installing Lua</A></H2>
-
-<P>
-Lua is distributed in
-<A HREF="http://www.lua.org/ftp/">source</A>
-form.
-You need to build it before using it.
-Building Lua should be straightforward
-because
-Lua is implemented in pure ANSI C and compiles unmodified in all known
-platforms that have an ANSI C compiler.
-Lua also compiles unmodified as C++.
-The instructions given below for building Lua are for Unix-like platforms.
-See also
-<A HREF="#other">instructions for other systems</A>
-and
-<A HREF="#customization">customization options</A>.
-
-<P>
-If you don't have the time or the inclination to compile Lua yourself,
-get a binary from
-<A HREF="http://lua-users.org/wiki/LuaBinaries">LuaBinaries</A>.
-Try also
-<A HREF="http://luadist.org/">LuaDist</A>,
-a multi-platform distribution of Lua that includes batteries.
-
-<H3>Building Lua</H3>
-
-<P>
-In most Unix-like platforms, simply do "<KBD>make</KBD>" with a suitable target.
-Here are the details.
-
-<OL>
-<LI>
-Open a terminal window and move to
-the top-level directory, which is named <TT>lua-5.2.x</TT>.
-The <TT>Makefile</TT> there controls both the build process and the installation process.
-<P>
-<LI>
- Do "<KBD>make</KBD>" and see if your platform is listed.
- The platforms currently supported are:
-<P>
-<P CLASS="display">
- aix ansi bsd freebsd generic linux macosx mingw posix solaris
-</P>
-<P>
- If your platform is listed, just do "<KBD>make xxx</KBD>", where xxx
- is your platform name.
-<P>
- If your platform is not listed, try the closest one or posix, generic,
- ansi, in this order.
-<P>
-<LI>
-The compilation takes only a few moments
-and produces three files in the <TT>src</TT> directory:
-lua (the interpreter),
-luac (the compiler),
-and liblua.a (the library).
-<P>
-<LI>
- To check that Lua has been built correctly, do "<KBD>make test</KBD>"
- after building Lua. This will run the interpreter and print its version.
-</OL>
-<P>
-If you're running Linux and get compilation errors,
-make sure you have installed the <TT>readline</TT> development package
-(which is probably named <TT>libreadline-dev</TT> or <TT>readline-devel</TT>).
-If you get link errors after that,
-then try "<KBD>make linux MYLIBS=-ltermcap</KBD>".
-
-<H3>Installing Lua</H3>
-<P>
- Once you have built Lua, you may want to install it in an official
- place in your system. In this case, do "<KBD>make install</KBD>". The official
- place and the way to install files are defined in the <TT>Makefile</TT>. You'll
- probably need the right permissions to install files.
-
-<P>
- To build and install Lua in one step, do "<KBD>make xxx install</KBD>",
- where xxx is your platform name.
-
-<P>
- To install Lua locally, do "<KBD>make local</KBD>".
- This will create a directory <TT>install</TT> with subdirectories
- <TT>bin</TT>, <TT>include</TT>, <TT>lib</TT>, <TT>man</TT>, <TT>share</TT>,
- and install Lua as listed below.
-
- To install Lua locally, but in some other directory, do
- "<KBD>make install INSTALL_TOP=xxx</KBD>", where xxx is your chosen directory.
- The installation starts in the <TT>src</TT> and <TT>doc</TT> directories,
- so take care if <TT>INSTALL_TOP</TT> is not an absolute path.
-
-<DL CLASS="display">
-<DT>
- bin:
-<DD>
- lua luac
-<DT>
- include:
-<DD>
- lua.h luaconf.h lualib.h lauxlib.h lua.hpp
-<DT>
- lib:
-<DD>
- liblua.a
-<DT>
- man/man1:
-<DD>
- lua.1 luac.1
-</DL>
-
-<P>
- These are the only directories you need for development.
- If you only want to run Lua programs,
- you only need the files in <TT>bin</TT> and <TT>man</TT>.
- The files in <TT>include</TT> and <TT>lib</TT> are needed for
- embedding Lua in C or C++ programs.
-
-<H3><A NAME="customization">Customization</A></H3>
-<P>
- Three kinds of things can be customized by editing a file:
-<UL>
- <LI> Where and how to install Lua — edit <TT>Makefile</TT>.
- <LI> How to build Lua — edit <TT>src/Makefile</TT>.
- <LI> Lua features — edit <TT>src/luaconf.h</TT>.
-</UL>
-
-<P>
- You don't actually need to edit the Makefiles because you may set the
- relevant variables in the command line when invoking make.
- Nevertheless, it's probably best to edit and save the Makefiles to
- record the changes you've made.
-
-<P>
- On the other hand, if you need to customize some Lua features, you'll need
- to edit <TT>src/luaconf.h</TT> before building and installing Lua.
- The edited file will be the one installed, and
- it will be used by any Lua clients that you build, to ensure consistency.
- Further customization is available to experts by editing the Lua sources.
-
-<P>
- We strongly recommend that you enable dynamic loading in <TT>src/luaconf.h</TT>.
- This is done automatically for all platforms listed above that have
- this feature and also for Windows.
-
-<H3><A NAME="other">Building Lua on other systems</A></H3>
-
-<P>
- If you're not using the usual Unix tools, then the instructions for
- building Lua depend on the compiler you use. You'll need to create
- projects (or whatever your compiler uses) for building the library,
- the interpreter, and the compiler, as follows:
-
-<DL CLASS="display">
-<DT>
-library:
-<DD>
-lapi.c lcode.c lctype.c ldebug.c ldo.c ldump.c lfunc.c lgc.c llex.c
-lmem.c lobject.c lopcodes.c lparser.c lstate.c lstring.c ltable.c
-ltm.c lundump.c lvm.c lzio.c
-lauxlib.c lbaselib.c lbitlib.c lcorolib.c ldblib.c liolib.c
-lmathlib.c loslib.c lstrlib.c ltablib.c loadlib.c linit.c
-<DT>
-interpreter:
-<DD>
- library, lua.c
-<DT>
-compiler:
-<DD>
- library, luac.c
-</DL>
-
-<P>
- To use Lua as a library in your own programs you'll need to know how to
- create and use libraries with your compiler. Moreover, to dynamically load
- C libraries for Lua you'll need to know how to create dynamic libraries
- and you'll need to make sure that the Lua API functions are accessible to
- those dynamic libraries — but <EM>don't</EM> link the Lua library
- into each dynamic library. For Unix, we recommend that the Lua library
- be linked statically into the host program and its symbols exported for
- dynamic linking; <TT>src/Makefile</TT> does this for the Lua interpreter.
- For Windows, we recommend that the Lua library be a DLL.
- In all cases, the compiler luac should be linked statically.
-
-<P>
- As mentioned above, you may edit <TT>src/luaconf.h</TT> to customize
- some features before building Lua.
-
-<H2><A NAME="changes">Changes since Lua 5.1</A></H2>
-
-<P>
-Here are the main changes introduced in Lua 5.2.
-The
-<A HREF="contents.html">reference manual</A>
-lists the
-<A HREF="manual.html#8">incompatibilities</A> that had to be introduced.
-
-<H3>Main changes</H3>
-<UL>
-<LI> yieldable pcall and metamethods
-<LI> new lexical scheme for globals
-<LI> ephemeron tables
-<LI> new library for bitwise operations
-<LI> light C functions
-<LI> emergency garbage collector
-<LI> <CODE>goto</CODE> statement
-<LI> finalizers for tables
-</UL>
-
-Here are the other changes introduced in Lua 5.2:
-<H3>Language</H3>
-<UL>
-<LI> no more fenv for threads or functions
-<LI> tables honor the <CODE>__len</CODE> metamethod
-<LI> hex and <CODE>\z</CODE> escapes in strings
-<LI> support for hexadecimal floats
-<LI> order metamethods work for different types
-<LI> no more verification of opcode consistency
-<LI> hook event "tail return" replaced by "tail call"
-<LI> empty statement
-<LI> <CODE>break</CODE> statement may appear in the middle of a block
-</UL>
-
-<H3>Libraries</H3>
-<UL>
-<LI> arguments for function called through <CODE>xpcall</CODE>
-<LI> optional 'mode' argument to load and loadfile (to control binary x text)
-<LI> optional 'env' argument to load and loadfile (environment for loaded chunk)
-<LI> <CODE>loadlib</CODE> may load libraries with global names (RTLD_GLOBAL)
-<LI> new function <CODE>package.searchpath</CODE>
-<LI> modules receive their paths when loaded
-<LI> optional base in <CODE>math.log</CODE>
-<LI> optional separator in <CODE>string.rep</CODE>
-<LI> <CODE>file:write</CODE> returns <CODE>file</CODE>
-<LI> closing a pipe returns exit status
-<LI> <CODE>os.exit</CODE> may close state
-<LI> new metamethods <CODE>__pairs</CODE> and <CODE>__ipairs</CODE>
-<LI> new option 'isrunning' for <CODE>collectgarbage</CODE> and <CODE>lua_gc</CODE>
-<LI> frontier patterns
-<LI> <CODE>\0</CODE> in patterns
-<LI> new option <CODE>*L</CODE> for <CODE>io.read</CODE>
-<LI> options for <CODE>io.lines</CODE>
-<LI> <CODE>debug.getlocal</CODE> can access function varargs
-</UL>
-
-<H3>C API</H3>
-<UL>
-<LI> main thread predefined in the registry
-<LI> new functions
-<CODE>lua_absindex</CODE>,
-<CODE>lua_arith</CODE>,
-<CODE>lua_compare</CODE>,
-<CODE>lua_copy</CODE>,
-<CODE>lua_len</CODE>,
-<CODE>lua_rawgetp</CODE>,
-<CODE>lua_rawsetp</CODE>,
-<CODE>lua_upvalueid</CODE>,
-<CODE>lua_upvaluejoin</CODE>,
-<CODE>lua_version</CODE>.
-<LI> new functions
-<CODE>luaL_checkversion</CODE>,
-<CODE>luaL_setmetatable</CODE>,
-<CODE>luaL_testudata</CODE>,
-<CODE>luaL_tolstring</CODE>.
-<LI> <CODE>lua_pushstring</CODE> and <CODE>pushlstring</CODE> return string
-<LI> <CODE>nparams</CODE> and <CODE>isvararg</CODE> available in debug API
-<LI> new <CODE>lua_Unsigned</CODE>
-</UL>
-
-<H3>Implementation</H3>
-<UL>
-<LI> max constants per function raised to 2<SUP>26</SUP>
-<LI> generational mode for garbage collection (experimental)
-<LI> NaN trick (experimental)
-<LI> internal (immutable) version of ctypes
-<LI> simpler implementation for string buffers
-<LI> parser uses much less C-stack space (no more auto arrays)
-</UL>
-
-<H3>Lua standalone interpreter</H3>
-<UL>
-<LI> new <CODE>-E</CODE> option to avoid environment variables
-<LI> handling of non-string error messages
-</UL>
-
-<H2><A NAME="license">License</A></H2>
-<A HREF="http://www.opensource.org/docs/definition.php">
-<IMG SRC="osi-certified-72x60.png" ALIGN="right" BORDER="0" ALT="[osi certified]" STYLE="padding-left: 30px ;">
-</A>
-
-<P>
-Lua is free software distributed under the terms of the
-<A HREF="http://www.opensource.org/licenses/mit-license.html">MIT license</A>
-reproduced below;
-it may be used for any purpose, including commercial purposes,
-at absolutely no cost without having to ask us.
-
-The only requirement is that if you do use Lua,
-then you should give us credit by including the appropriate copyright notice somewhere in your product or its documentation.
-
-For details, see
-<A HREF="http://www.lua.org/license.html">this</A>.
-
-<BLOCKQUOTE STYLE="padding-bottom: 0em">
-Copyright © 1994–2015 Lua.org, PUC-Rio.
-
-<P>
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-<P>
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-<P>
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-</BLOCKQUOTE>
-<P>
-
-<HR>
-<SMALL CLASS="footer">
-Last update:
-Mon Feb 23 22:25:08 BRT 2015
-</SMALL>
-<!--
-Last change: revised for Lua 5.2.4
--->
-
-</BODY>
-</HTML>
diff --git a/Build/source/libs/lua52/lua52-src/src/Makefile b/Build/source/libs/lua52/lua52-src/src/Makefile deleted file mode 100644 index 7b4b2b75420..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/Makefile +++ /dev/null @@ -1,187 +0,0 @@ -# Makefile for building Lua -# See ../doc/readme.html for installation and customization instructions. - -# == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT ======================= - -# Your platform. See PLATS for possible values. -PLAT= none - -CC= gcc -CFLAGS= -O2 -Wall -DLUA_COMPAT_ALL $(SYSCFLAGS) $(MYCFLAGS) -LDFLAGS= $(SYSLDFLAGS) $(MYLDFLAGS) -LIBS= -lm $(SYSLIBS) $(MYLIBS) - -AR= ar rcu -RANLIB= ranlib -RM= rm -f - -SYSCFLAGS= -SYSLDFLAGS= -SYSLIBS= - -MYCFLAGS= -MYLDFLAGS= -MYLIBS= -MYOBJS= - -# == END OF USER SETTINGS -- NO NEED TO CHANGE ANYTHING BELOW THIS LINE ======= - -PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris - -LUA_A= liblua.a -CORE_O= lapi.o lcode.o lctype.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o \ - lmem.o lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o \ - ltm.o lundump.o lvm.o lzio.o -LIB_O= lauxlib.o lbaselib.o lbitlib.o lcorolib.o ldblib.o liolib.o \ - lmathlib.o loslib.o lstrlib.o ltablib.o loadlib.o linit.o -BASE_O= $(CORE_O) $(LIB_O) $(MYOBJS) - -LUA_T= lua -LUA_O= lua.o - -LUAC_T= luac -LUAC_O= luac.o - -ALL_O= $(BASE_O) $(LUA_O) $(LUAC_O) -ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T) -ALL_A= $(LUA_A) - -# Targets start here. -default: $(PLAT) - -all: $(ALL_T) - -o: $(ALL_O) - -a: $(ALL_A) - -$(LUA_A): $(BASE_O) - $(AR) $@ $(BASE_O) - $(RANLIB) $@ - -$(LUA_T): $(LUA_O) $(LUA_A) - $(CC) -o $@ $(LDFLAGS) $(LUA_O) $(LUA_A) $(LIBS) - -$(LUAC_T): $(LUAC_O) $(LUA_A) - $(CC) -o $@ $(LDFLAGS) $(LUAC_O) $(LUA_A) $(LIBS) - -clean: - $(RM) $(ALL_T) $(ALL_O) - -depend: - @$(CC) $(CFLAGS) -MM l*.c - -echo: - @echo "PLAT= $(PLAT)" - @echo "CC= $(CC)" - @echo "CFLAGS= $(CFLAGS)" - @echo "LDFLAGS= $(SYSLDFLAGS)" - @echo "LIBS= $(LIBS)" - @echo "AR= $(AR)" - @echo "RANLIB= $(RANLIB)" - @echo "RM= $(RM)" - -# Convenience targets for popular platforms -ALL= all - -none: - @echo "Please do 'make PLATFORM' where PLATFORM is one of these:" - @echo " $(PLATS)" - -aix: - $(MAKE) $(ALL) CC="xlc" CFLAGS="-O2 -DLUA_USE_POSIX -DLUA_USE_DLOPEN" SYSLIBS="-ldl" SYSLDFLAGS="-brtl -bexpall" - -ansi: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_ANSI" - -bsd: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" SYSLIBS="-Wl,-E" - -freebsd: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX" SYSLIBS="-Wl,-E -lreadline" - -generic: $(ALL) - -linux: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX" SYSLIBS="-Wl,-E -ldl -lreadline" - -macosx: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_MACOSX" SYSLIBS="-lreadline" CC=cc - -mingw: - $(MAKE) "LUA_A=lua52.dll" "LUA_T=lua.exe" \ - "AR=$(CC) -shared -o" "RANLIB=strip --strip-unneeded" \ - "SYSCFLAGS=-DLUA_BUILD_AS_DLL" "SYSLIBS=" "SYSLDFLAGS=-s" lua.exe - $(MAKE) "LUAC_T=luac.exe" luac.exe - -posix: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_POSIX" - -solaris: - $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" SYSLIBS="-ldl" - -# list targets that do not create files (but not all makes understand .PHONY) -.PHONY: all $(PLATS) default o a clean depend echo none - -# DO NOT DELETE - -lapi.o: lapi.c lua.h luaconf.h lapi.h llimits.h lstate.h lobject.h ltm.h \ - lzio.h lmem.h ldebug.h ldo.h lfunc.h lgc.h lstring.h ltable.h lundump.h \ - lvm.h -lauxlib.o: lauxlib.c lua.h luaconf.h lauxlib.h -lbaselib.o: lbaselib.c lua.h luaconf.h lauxlib.h lualib.h -lbitlib.o: lbitlib.c lua.h luaconf.h lauxlib.h lualib.h -lcode.o: lcode.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \ - lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h lgc.h \ - lstring.h ltable.h lvm.h -lcorolib.o: lcorolib.c lua.h luaconf.h lauxlib.h lualib.h -lctype.o: lctype.c lctype.h lua.h luaconf.h llimits.h -ldblib.o: ldblib.c lua.h luaconf.h lauxlib.h lualib.h -ldebug.o: ldebug.c lua.h luaconf.h lapi.h llimits.h lstate.h lobject.h \ - ltm.h lzio.h lmem.h lcode.h llex.h lopcodes.h lparser.h ldebug.h ldo.h \ - lfunc.h lstring.h lgc.h ltable.h lvm.h -ldo.o: ldo.c lua.h luaconf.h lapi.h llimits.h lstate.h lobject.h ltm.h \ - lzio.h lmem.h ldebug.h ldo.h lfunc.h lgc.h lopcodes.h lparser.h \ - lstring.h ltable.h lundump.h lvm.h -ldump.o: ldump.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h \ - lzio.h lmem.h lundump.h -lfunc.o: lfunc.c lua.h luaconf.h lfunc.h lobject.h llimits.h lgc.h \ - lstate.h ltm.h lzio.h lmem.h -lgc.o: lgc.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \ - lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h -linit.o: linit.c lua.h luaconf.h lualib.h lauxlib.h -liolib.o: liolib.c lua.h luaconf.h lauxlib.h lualib.h -llex.o: llex.c lua.h luaconf.h lctype.h llimits.h ldo.h lobject.h \ - lstate.h ltm.h lzio.h lmem.h llex.h lparser.h lstring.h lgc.h ltable.h -lmathlib.o: lmathlib.c lua.h luaconf.h lauxlib.h lualib.h -lmem.o: lmem.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \ - ltm.h lzio.h lmem.h ldo.h lgc.h -loadlib.o: loadlib.c lua.h luaconf.h lauxlib.h lualib.h -lobject.o: lobject.c lua.h luaconf.h lctype.h llimits.h ldebug.h lstate.h \ - lobject.h ltm.h lzio.h lmem.h ldo.h lstring.h lgc.h lvm.h -lopcodes.o: lopcodes.c lopcodes.h llimits.h lua.h luaconf.h -loslib.o: loslib.c lua.h luaconf.h lauxlib.h lualib.h -lparser.o: lparser.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \ - lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h lfunc.h \ - lstring.h lgc.h ltable.h -lstate.o: lstate.c lua.h luaconf.h lapi.h llimits.h lstate.h lobject.h \ - ltm.h lzio.h lmem.h ldebug.h ldo.h lfunc.h lgc.h llex.h lstring.h \ - ltable.h -lstring.o: lstring.c lua.h luaconf.h lmem.h llimits.h lobject.h lstate.h \ - ltm.h lzio.h lstring.h lgc.h -lstrlib.o: lstrlib.c lua.h luaconf.h lauxlib.h lualib.h -ltable.o: ltable.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \ - ltm.h lzio.h lmem.h ldo.h lgc.h lstring.h ltable.h lvm.h -ltablib.o: ltablib.c lua.h luaconf.h lauxlib.h lualib.h -ltm.o: ltm.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h lzio.h \ - lmem.h lstring.h lgc.h ltable.h -lua.o: lua.c lua.h luaconf.h lauxlib.h lualib.h -luac.o: luac.c lua.h luaconf.h lauxlib.h lobject.h llimits.h lstate.h \ - ltm.h lzio.h lmem.h lundump.h ldebug.h lopcodes.h -lundump.o: lundump.c lua.h luaconf.h ldebug.h lstate.h lobject.h \ - llimits.h ltm.h lzio.h lmem.h ldo.h lfunc.h lstring.h lgc.h lundump.h -lvm.o: lvm.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \ - lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lstring.h ltable.h lvm.h -lzio.o: lzio.c lua.h luaconf.h llimits.h lmem.h lstate.h lobject.h ltm.h \ - lzio.h - diff --git a/Build/source/libs/lua52/lua52-src/src/lapi.c b/Build/source/libs/lua52/lua52-src/src/lapi.c deleted file mode 100644 index d011431eadf..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lapi.c +++ /dev/null @@ -1,1284 +0,0 @@ -/* -** $Id: lapi.c,v 2.171.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua API -** See Copyright Notice in lua.h -*/ - - -#include <stdarg.h> -#include <string.h> - -#define lapi_c -#define LUA_CORE - -#include "lua.h" - -#include "lapi.h" -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lgc.h" -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" -#include "lundump.h" -#include "lvm.h" - - - -const char lua_ident[] = - "$LuaVersion: " LUA_COPYRIGHT " $" - "$LuaAuthors: " LUA_AUTHORS " $"; - - -/* value at a non-valid index */ -#define NONVALIDVALUE cast(TValue *, luaO_nilobject) - -/* corresponding test */ -#define isvalid(o) ((o) != luaO_nilobject) - -/* test for pseudo index */ -#define ispseudo(i) ((i) <= LUA_REGISTRYINDEX) - -/* test for valid but not pseudo index */ -#define isstackindex(i, o) (isvalid(o) && !ispseudo(i)) - -#define api_checkvalidindex(L, o) api_check(L, isvalid(o), "invalid index") - -#define api_checkstackindex(L, i, o) \ - api_check(L, isstackindex(i, o), "index not in the stack") - - -static TValue *index2addr (lua_State *L, int idx) { - CallInfo *ci = L->ci; - if (idx > 0) { - TValue *o = ci->func + idx; - api_check(L, idx <= ci->top - (ci->func + 1), "unacceptable index"); - if (o >= L->top) return NONVALIDVALUE; - else return o; - } - else if (!ispseudo(idx)) { /* negative index */ - api_check(L, idx != 0 && -idx <= L->top - (ci->func + 1), "invalid index"); - return L->top + idx; - } - else if (idx == LUA_REGISTRYINDEX) - return &G(L)->l_registry; - else { /* upvalues */ - idx = LUA_REGISTRYINDEX - idx; - api_check(L, idx <= MAXUPVAL + 1, "upvalue index too large"); - if (ttislcf(ci->func)) /* light C function? */ - return NONVALIDVALUE; /* it has no upvalues */ - else { - CClosure *func = clCvalue(ci->func); - return (idx <= func->nupvalues) ? &func->upvalue[idx-1] : NONVALIDVALUE; - } - } -} - - -/* -** to be called by 'lua_checkstack' in protected mode, to grow stack -** capturing memory errors -*/ -static void growstack (lua_State *L, void *ud) { - int size = *(int *)ud; - luaD_growstack(L, size); -} - - -LUA_API int lua_checkstack (lua_State *L, int size) { - int res; - CallInfo *ci = L->ci; - lua_lock(L); - if (L->stack_last - L->top > size) /* stack large enough? */ - res = 1; /* yes; check is OK */ - else { /* no; need to grow stack */ - int inuse = cast_int(L->top - L->stack) + EXTRA_STACK; - if (inuse > LUAI_MAXSTACK - size) /* can grow without overflow? */ - res = 0; /* no */ - else /* try to grow stack */ - res = (luaD_rawrunprotected(L, &growstack, &size) == LUA_OK); - } - if (res && ci->top < L->top + size) - ci->top = L->top + size; /* adjust frame top */ - lua_unlock(L); - return res; -} - - -LUA_API void lua_xmove (lua_State *from, lua_State *to, int n) { - int i; - if (from == to) return; - lua_lock(to); - api_checknelems(from, n); - api_check(from, G(from) == G(to), "moving among independent states"); - api_check(from, to->ci->top - to->top >= n, "not enough elements to move"); - from->top -= n; - for (i = 0; i < n; i++) { - setobj2s(to, to->top++, from->top + i); - } - lua_unlock(to); -} - - -LUA_API lua_CFunction lua_atpanic (lua_State *L, lua_CFunction panicf) { - lua_CFunction old; - lua_lock(L); - old = G(L)->panic; - G(L)->panic = panicf; - lua_unlock(L); - return old; -} - - -LUA_API const lua_Number *lua_version (lua_State *L) { - static const lua_Number version = LUA_VERSION_NUM; - if (L == NULL) return &version; - else return G(L)->version; -} - - - -/* -** basic stack manipulation -*/ - - -/* -** convert an acceptable stack index into an absolute index -*/ -LUA_API int lua_absindex (lua_State *L, int idx) { - return (idx > 0 || ispseudo(idx)) - ? idx - : cast_int(L->top - L->ci->func + idx); -} - - -LUA_API int lua_gettop (lua_State *L) { - return cast_int(L->top - (L->ci->func + 1)); -} - - -LUA_API void lua_settop (lua_State *L, int idx) { - StkId func = L->ci->func; - lua_lock(L); - if (idx >= 0) { - api_check(L, idx <= L->stack_last - (func + 1), "new top too large"); - while (L->top < (func + 1) + idx) - setnilvalue(L->top++); - L->top = (func + 1) + idx; - } - else { - api_check(L, -(idx+1) <= (L->top - (func + 1)), "invalid new top"); - L->top += idx+1; /* `subtract' index (index is negative) */ - } - lua_unlock(L); -} - - -LUA_API void lua_remove (lua_State *L, int idx) { - StkId p; - lua_lock(L); - p = index2addr(L, idx); - api_checkstackindex(L, idx, p); - while (++p < L->top) setobjs2s(L, p-1, p); - L->top--; - lua_unlock(L); -} - - -LUA_API void lua_insert (lua_State *L, int idx) { - StkId p; - StkId q; - lua_lock(L); - p = index2addr(L, idx); - api_checkstackindex(L, idx, p); - for (q = L->top; q > p; q--) /* use L->top as a temporary */ - setobjs2s(L, q, q - 1); - setobjs2s(L, p, L->top); - lua_unlock(L); -} - - -static void moveto (lua_State *L, TValue *fr, int idx) { - TValue *to = index2addr(L, idx); - api_checkvalidindex(L, to); - setobj(L, to, fr); - if (idx < LUA_REGISTRYINDEX) /* function upvalue? */ - luaC_barrier(L, clCvalue(L->ci->func), fr); - /* LUA_REGISTRYINDEX does not need gc barrier - (collector revisits it before finishing collection) */ -} - - -LUA_API void lua_replace (lua_State *L, int idx) { - lua_lock(L); - api_checknelems(L, 1); - moveto(L, L->top - 1, idx); - L->top--; - lua_unlock(L); -} - - -LUA_API void lua_copy (lua_State *L, int fromidx, int toidx) { - TValue *fr; - lua_lock(L); - fr = index2addr(L, fromidx); - moveto(L, fr, toidx); - lua_unlock(L); -} - - -LUA_API void lua_pushvalue (lua_State *L, int idx) { - lua_lock(L); - setobj2s(L, L->top, index2addr(L, idx)); - api_incr_top(L); - lua_unlock(L); -} - - - -/* -** access functions (stack -> C) -*/ - - -LUA_API int lua_type (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - return (isvalid(o) ? ttypenv(o) : LUA_TNONE); -} - - -LUA_API const char *lua_typename (lua_State *L, int t) { - UNUSED(L); - return ttypename(t); -} - - -LUA_API int lua_iscfunction (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - return (ttislcf(o) || (ttisCclosure(o))); -} - - -LUA_API int lua_isnumber (lua_State *L, int idx) { - TValue n; - const TValue *o = index2addr(L, idx); - return tonumber(o, &n); -} - - -LUA_API int lua_isstring (lua_State *L, int idx) { - int t = lua_type(L, idx); - return (t == LUA_TSTRING || t == LUA_TNUMBER); -} - - -LUA_API int lua_isuserdata (lua_State *L, int idx) { - const TValue *o = index2addr(L, idx); - return (ttisuserdata(o) || ttislightuserdata(o)); -} - - -LUA_API int lua_rawequal (lua_State *L, int index1, int index2) { - StkId o1 = index2addr(L, index1); - StkId o2 = index2addr(L, index2); - return (isvalid(o1) && isvalid(o2)) ? luaV_rawequalobj(o1, o2) : 0; -} - - -LUA_API void lua_arith (lua_State *L, int op) { - StkId o1; /* 1st operand */ - StkId o2; /* 2nd operand */ - lua_lock(L); - if (op != LUA_OPUNM) /* all other operations expect two operands */ - api_checknelems(L, 2); - else { /* for unary minus, add fake 2nd operand */ - api_checknelems(L, 1); - setobjs2s(L, L->top, L->top - 1); - L->top++; - } - o1 = L->top - 2; - o2 = L->top - 1; - if (ttisnumber(o1) && ttisnumber(o2)) { - setnvalue(o1, luaO_arith(op, nvalue(o1), nvalue(o2))); - } - else - luaV_arith(L, o1, o1, o2, cast(TMS, op - LUA_OPADD + TM_ADD)); - L->top--; - lua_unlock(L); -} - - -LUA_API int lua_compare (lua_State *L, int index1, int index2, int op) { - StkId o1, o2; - int i = 0; - lua_lock(L); /* may call tag method */ - o1 = index2addr(L, index1); - o2 = index2addr(L, index2); - if (isvalid(o1) && isvalid(o2)) { - switch (op) { - case LUA_OPEQ: i = equalobj(L, o1, o2); break; - case LUA_OPLT: i = luaV_lessthan(L, o1, o2); break; - case LUA_OPLE: i = luaV_lessequal(L, o1, o2); break; - default: api_check(L, 0, "invalid option"); - } - } - lua_unlock(L); - return i; -} - - -LUA_API lua_Number lua_tonumberx (lua_State *L, int idx, int *isnum) { - TValue n; - const TValue *o = index2addr(L, idx); - if (tonumber(o, &n)) { - if (isnum) *isnum = 1; - return nvalue(o); - } - else { - if (isnum) *isnum = 0; - return 0; - } -} - - -LUA_API lua_Integer lua_tointegerx (lua_State *L, int idx, int *isnum) { - TValue n; - const TValue *o = index2addr(L, idx); - if (tonumber(o, &n)) { - lua_Integer res; - lua_Number num = nvalue(o); - lua_number2integer(res, num); - if (isnum) *isnum = 1; - return res; - } - else { - if (isnum) *isnum = 0; - return 0; - } -} - - -LUA_API lua_Unsigned lua_tounsignedx (lua_State *L, int idx, int *isnum) { - TValue n; - const TValue *o = index2addr(L, idx); - if (tonumber(o, &n)) { - lua_Unsigned res; - lua_Number num = nvalue(o); - lua_number2unsigned(res, num); - if (isnum) *isnum = 1; - return res; - } - else { - if (isnum) *isnum = 0; - return 0; - } -} - - -LUA_API int lua_toboolean (lua_State *L, int idx) { - const TValue *o = index2addr(L, idx); - return !l_isfalse(o); -} - - -LUA_API const char *lua_tolstring (lua_State *L, int idx, size_t *len) { - StkId o = index2addr(L, idx); - if (!ttisstring(o)) { - lua_lock(L); /* `luaV_tostring' may create a new string */ - if (!luaV_tostring(L, o)) { /* conversion failed? */ - if (len != NULL) *len = 0; - lua_unlock(L); - return NULL; - } - luaC_checkGC(L); - o = index2addr(L, idx); /* previous call may reallocate the stack */ - lua_unlock(L); - } - if (len != NULL) *len = tsvalue(o)->len; - return svalue(o); -} - - -LUA_API size_t lua_rawlen (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - switch (ttypenv(o)) { - case LUA_TSTRING: return tsvalue(o)->len; - case LUA_TUSERDATA: return uvalue(o)->len; - case LUA_TTABLE: return luaH_getn(hvalue(o)); - default: return 0; - } -} - - -LUA_API lua_CFunction lua_tocfunction (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - if (ttislcf(o)) return fvalue(o); - else if (ttisCclosure(o)) - return clCvalue(o)->f; - else return NULL; /* not a C function */ -} - - -LUA_API void *lua_touserdata (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - switch (ttypenv(o)) { - case LUA_TUSERDATA: return (rawuvalue(o) + 1); - case LUA_TLIGHTUSERDATA: return pvalue(o); - default: return NULL; - } -} - - -LUA_API lua_State *lua_tothread (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - return (!ttisthread(o)) ? NULL : thvalue(o); -} - - -LUA_API const void *lua_topointer (lua_State *L, int idx) { - StkId o = index2addr(L, idx); - switch (ttype(o)) { - case LUA_TTABLE: return hvalue(o); - case LUA_TLCL: return clLvalue(o); - case LUA_TCCL: return clCvalue(o); - case LUA_TLCF: return cast(void *, cast(size_t, fvalue(o))); - case LUA_TTHREAD: return thvalue(o); - case LUA_TUSERDATA: - case LUA_TLIGHTUSERDATA: - return lua_touserdata(L, idx); - default: return NULL; - } -} - - - -/* -** push functions (C -> stack) -*/ - - -LUA_API void lua_pushnil (lua_State *L) { - lua_lock(L); - setnilvalue(L->top); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_pushnumber (lua_State *L, lua_Number n) { - lua_lock(L); - setnvalue(L->top, n); - luai_checknum(L, L->top, - luaG_runerror(L, "C API - attempt to push a signaling NaN")); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_pushinteger (lua_State *L, lua_Integer n) { - lua_lock(L); - setnvalue(L->top, cast_num(n)); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_pushunsigned (lua_State *L, lua_Unsigned u) { - lua_Number n; - lua_lock(L); - n = lua_unsigned2number(u); - setnvalue(L->top, n); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API const char *lua_pushlstring (lua_State *L, const char *s, size_t len) { - TString *ts; - lua_lock(L); - luaC_checkGC(L); - ts = luaS_newlstr(L, s, len); - setsvalue2s(L, L->top, ts); - api_incr_top(L); - lua_unlock(L); - return getstr(ts); -} - - -LUA_API const char *lua_pushstring (lua_State *L, const char *s) { - if (s == NULL) { - lua_pushnil(L); - return NULL; - } - else { - TString *ts; - lua_lock(L); - luaC_checkGC(L); - ts = luaS_new(L, s); - setsvalue2s(L, L->top, ts); - api_incr_top(L); - lua_unlock(L); - return getstr(ts); - } -} - - -LUA_API const char *lua_pushvfstring (lua_State *L, const char *fmt, - va_list argp) { - const char *ret; - lua_lock(L); - luaC_checkGC(L); - ret = luaO_pushvfstring(L, fmt, argp); - lua_unlock(L); - return ret; -} - - -LUA_API const char *lua_pushfstring (lua_State *L, const char *fmt, ...) { - const char *ret; - va_list argp; - lua_lock(L); - luaC_checkGC(L); - va_start(argp, fmt); - ret = luaO_pushvfstring(L, fmt, argp); - va_end(argp); - lua_unlock(L); - return ret; -} - - -LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) { - lua_lock(L); - if (n == 0) { - setfvalue(L->top, fn); - } - else { - Closure *cl; - api_checknelems(L, n); - api_check(L, n <= MAXUPVAL, "upvalue index too large"); - luaC_checkGC(L); - cl = luaF_newCclosure(L, n); - cl->c.f = fn; - L->top -= n; - while (n--) - setobj2n(L, &cl->c.upvalue[n], L->top + n); - setclCvalue(L, L->top, cl); - } - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_pushboolean (lua_State *L, int b) { - lua_lock(L); - setbvalue(L->top, (b != 0)); /* ensure that true is 1 */ - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_pushlightuserdata (lua_State *L, void *p) { - lua_lock(L); - setpvalue(L->top, p); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API int lua_pushthread (lua_State *L) { - lua_lock(L); - setthvalue(L, L->top, L); - api_incr_top(L); - lua_unlock(L); - return (G(L)->mainthread == L); -} - - - -/* -** get functions (Lua -> stack) -*/ - - -LUA_API void lua_getglobal (lua_State *L, const char *var) { - Table *reg = hvalue(&G(L)->l_registry); - const TValue *gt; /* global table */ - lua_lock(L); - gt = luaH_getint(reg, LUA_RIDX_GLOBALS); - setsvalue2s(L, L->top++, luaS_new(L, var)); - luaV_gettable(L, gt, L->top - 1, L->top - 1); - lua_unlock(L); -} - - -LUA_API void lua_gettable (lua_State *L, int idx) { - StkId t; - lua_lock(L); - t = index2addr(L, idx); - luaV_gettable(L, t, L->top - 1, L->top - 1); - lua_unlock(L); -} - - -LUA_API void lua_getfield (lua_State *L, int idx, const char *k) { - StkId t; - lua_lock(L); - t = index2addr(L, idx); - setsvalue2s(L, L->top, luaS_new(L, k)); - api_incr_top(L); - luaV_gettable(L, t, L->top - 1, L->top - 1); - lua_unlock(L); -} - - -LUA_API void lua_rawget (lua_State *L, int idx) { - StkId t; - lua_lock(L); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - setobj2s(L, L->top - 1, luaH_get(hvalue(t), L->top - 1)); - lua_unlock(L); -} - - -LUA_API void lua_rawgeti (lua_State *L, int idx, int n) { - StkId t; - lua_lock(L); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - setobj2s(L, L->top, luaH_getint(hvalue(t), n)); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_rawgetp (lua_State *L, int idx, const void *p) { - StkId t; - TValue k; - lua_lock(L); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - setpvalue(&k, cast(void *, p)); - setobj2s(L, L->top, luaH_get(hvalue(t), &k)); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API void lua_createtable (lua_State *L, int narray, int nrec) { - Table *t; - lua_lock(L); - luaC_checkGC(L); - t = luaH_new(L); - sethvalue(L, L->top, t); - api_incr_top(L); - if (narray > 0 || nrec > 0) - luaH_resize(L, t, narray, nrec); - lua_unlock(L); -} - - -LUA_API int lua_getmetatable (lua_State *L, int objindex) { - const TValue *obj; - Table *mt = NULL; - int res; - lua_lock(L); - obj = index2addr(L, objindex); - switch (ttypenv(obj)) { - case LUA_TTABLE: - mt = hvalue(obj)->metatable; - break; - case LUA_TUSERDATA: - mt = uvalue(obj)->metatable; - break; - default: - mt = G(L)->mt[ttypenv(obj)]; - break; - } - if (mt == NULL) - res = 0; - else { - sethvalue(L, L->top, mt); - api_incr_top(L); - res = 1; - } - lua_unlock(L); - return res; -} - - -LUA_API void lua_getuservalue (lua_State *L, int idx) { - StkId o; - lua_lock(L); - o = index2addr(L, idx); - api_check(L, ttisuserdata(o), "userdata expected"); - if (uvalue(o)->env) { - sethvalue(L, L->top, uvalue(o)->env); - } else - setnilvalue(L->top); - api_incr_top(L); - lua_unlock(L); -} - - -/* -** set functions (stack -> Lua) -*/ - - -LUA_API void lua_setglobal (lua_State *L, const char *var) { - Table *reg = hvalue(&G(L)->l_registry); - const TValue *gt; /* global table */ - lua_lock(L); - api_checknelems(L, 1); - gt = luaH_getint(reg, LUA_RIDX_GLOBALS); - setsvalue2s(L, L->top++, luaS_new(L, var)); - luaV_settable(L, gt, L->top - 1, L->top - 2); - L->top -= 2; /* pop value and key */ - lua_unlock(L); -} - - -LUA_API void lua_settable (lua_State *L, int idx) { - StkId t; - lua_lock(L); - api_checknelems(L, 2); - t = index2addr(L, idx); - luaV_settable(L, t, L->top - 2, L->top - 1); - L->top -= 2; /* pop index and value */ - lua_unlock(L); -} - - -LUA_API void lua_setfield (lua_State *L, int idx, const char *k) { - StkId t; - lua_lock(L); - api_checknelems(L, 1); - t = index2addr(L, idx); - setsvalue2s(L, L->top++, luaS_new(L, k)); - luaV_settable(L, t, L->top - 1, L->top - 2); - L->top -= 2; /* pop value and key */ - lua_unlock(L); -} - - -LUA_API void lua_rawset (lua_State *L, int idx) { - StkId t; - lua_lock(L); - api_checknelems(L, 2); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - setobj2t(L, luaH_set(L, hvalue(t), L->top-2), L->top-1); - invalidateTMcache(hvalue(t)); - luaC_barrierback(L, gcvalue(t), L->top-1); - L->top -= 2; - lua_unlock(L); -} - - -LUA_API void lua_rawseti (lua_State *L, int idx, int n) { - StkId t; - lua_lock(L); - api_checknelems(L, 1); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - luaH_setint(L, hvalue(t), n, L->top - 1); - luaC_barrierback(L, gcvalue(t), L->top-1); - L->top--; - lua_unlock(L); -} - - -LUA_API void lua_rawsetp (lua_State *L, int idx, const void *p) { - StkId t; - TValue k; - lua_lock(L); - api_checknelems(L, 1); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - setpvalue(&k, cast(void *, p)); - setobj2t(L, luaH_set(L, hvalue(t), &k), L->top - 1); - luaC_barrierback(L, gcvalue(t), L->top - 1); - L->top--; - lua_unlock(L); -} - - -LUA_API int lua_setmetatable (lua_State *L, int objindex) { - TValue *obj; - Table *mt; - lua_lock(L); - api_checknelems(L, 1); - obj = index2addr(L, objindex); - if (ttisnil(L->top - 1)) - mt = NULL; - else { - api_check(L, ttistable(L->top - 1), "table expected"); - mt = hvalue(L->top - 1); - } - switch (ttypenv(obj)) { - case LUA_TTABLE: { - hvalue(obj)->metatable = mt; - if (mt) { - luaC_objbarrierback(L, gcvalue(obj), mt); - luaC_checkfinalizer(L, gcvalue(obj), mt); - } - break; - } - case LUA_TUSERDATA: { - uvalue(obj)->metatable = mt; - if (mt) { - luaC_objbarrier(L, rawuvalue(obj), mt); - luaC_checkfinalizer(L, gcvalue(obj), mt); - } - break; - } - default: { - G(L)->mt[ttypenv(obj)] = mt; - break; - } - } - L->top--; - lua_unlock(L); - return 1; -} - - -LUA_API void lua_setuservalue (lua_State *L, int idx) { - StkId o; - lua_lock(L); - api_checknelems(L, 1); - o = index2addr(L, idx); - api_check(L, ttisuserdata(o), "userdata expected"); - if (ttisnil(L->top - 1)) - uvalue(o)->env = NULL; - else { - api_check(L, ttistable(L->top - 1), "table expected"); - uvalue(o)->env = hvalue(L->top - 1); - luaC_objbarrier(L, gcvalue(o), hvalue(L->top - 1)); - } - L->top--; - lua_unlock(L); -} - - -/* -** `load' and `call' functions (run Lua code) -*/ - - -#define checkresults(L,na,nr) \ - api_check(L, (nr) == LUA_MULTRET || (L->ci->top - L->top >= (nr) - (na)), \ - "results from function overflow current stack size") - - -LUA_API int lua_getctx (lua_State *L, int *ctx) { - if (L->ci->callstatus & CIST_YIELDED) { - if (ctx) *ctx = L->ci->u.c.ctx; - return L->ci->u.c.status; - } - else return LUA_OK; -} - - -LUA_API void lua_callk (lua_State *L, int nargs, int nresults, int ctx, - lua_CFunction k) { - StkId func; - lua_lock(L); - api_check(L, k == NULL || !isLua(L->ci), - "cannot use continuations inside hooks"); - api_checknelems(L, nargs+1); - api_check(L, L->status == LUA_OK, "cannot do calls on non-normal thread"); - checkresults(L, nargs, nresults); - func = L->top - (nargs+1); - if (k != NULL && L->nny == 0) { /* need to prepare continuation? */ - L->ci->u.c.k = k; /* save continuation */ - L->ci->u.c.ctx = ctx; /* save context */ - luaD_call(L, func, nresults, 1); /* do the call */ - } - else /* no continuation or no yieldable */ - luaD_call(L, func, nresults, 0); /* just do the call */ - adjustresults(L, nresults); - lua_unlock(L); -} - - - -/* -** Execute a protected call. -*/ -struct CallS { /* data to `f_call' */ - StkId func; - int nresults; -}; - - -static void f_call (lua_State *L, void *ud) { - struct CallS *c = cast(struct CallS *, ud); - luaD_call(L, c->func, c->nresults, 0); -} - - - -LUA_API int lua_pcallk (lua_State *L, int nargs, int nresults, int errfunc, - int ctx, lua_CFunction k) { - struct CallS c; - int status; - ptrdiff_t func; - lua_lock(L); - api_check(L, k == NULL || !isLua(L->ci), - "cannot use continuations inside hooks"); - api_checknelems(L, nargs+1); - api_check(L, L->status == LUA_OK, "cannot do calls on non-normal thread"); - checkresults(L, nargs, nresults); - if (errfunc == 0) - func = 0; - else { - StkId o = index2addr(L, errfunc); - api_checkstackindex(L, errfunc, o); - func = savestack(L, o); - } - c.func = L->top - (nargs+1); /* function to be called */ - if (k == NULL || L->nny > 0) { /* no continuation or no yieldable? */ - c.nresults = nresults; /* do a 'conventional' protected call */ - status = luaD_pcall(L, f_call, &c, savestack(L, c.func), func); - } - else { /* prepare continuation (call is already protected by 'resume') */ - CallInfo *ci = L->ci; - ci->u.c.k = k; /* save continuation */ - ci->u.c.ctx = ctx; /* save context */ - /* save information for error recovery */ - ci->extra = savestack(L, c.func); - ci->u.c.old_allowhook = L->allowhook; - ci->u.c.old_errfunc = L->errfunc; - L->errfunc = func; - /* mark that function may do error recovery */ - ci->callstatus |= CIST_YPCALL; - luaD_call(L, c.func, nresults, 1); /* do the call */ - ci->callstatus &= ~CIST_YPCALL; - L->errfunc = ci->u.c.old_errfunc; - status = LUA_OK; /* if it is here, there were no errors */ - } - adjustresults(L, nresults); - lua_unlock(L); - return status; -} - - -LUA_API int lua_load (lua_State *L, lua_Reader reader, void *data, - const char *chunkname, const char *mode) { - ZIO z; - int status; - lua_lock(L); - if (!chunkname) chunkname = "?"; - luaZ_init(L, &z, reader, data); - status = luaD_protectedparser(L, &z, chunkname, mode); - if (status == LUA_OK) { /* no errors? */ - LClosure *f = clLvalue(L->top - 1); /* get newly created function */ - if (f->nupvalues == 1) { /* does it have one upvalue? */ - /* get global table from registry */ - Table *reg = hvalue(&G(L)->l_registry); - const TValue *gt = luaH_getint(reg, LUA_RIDX_GLOBALS); - /* set global table as 1st upvalue of 'f' (may be LUA_ENV) */ - setobj(L, f->upvals[0]->v, gt); - luaC_barrier(L, f->upvals[0], gt); - } - } - lua_unlock(L); - return status; -} - - -LUA_API int lua_dump (lua_State *L, lua_Writer writer, void *data) { - int status; - TValue *o; - lua_lock(L); - api_checknelems(L, 1); - o = L->top - 1; - if (isLfunction(o)) - status = luaU_dump(L, getproto(o), writer, data, 0); - else - status = 1; - lua_unlock(L); - return status; -} - - -LUA_API int lua_status (lua_State *L) { - return L->status; -} - - -/* -** Garbage-collection function -*/ - -LUA_API int lua_gc (lua_State *L, int what, int data) { - int res = 0; - global_State *g; - lua_lock(L); - g = G(L); - switch (what) { - case LUA_GCSTOP: { - g->gcrunning = 0; - break; - } - case LUA_GCRESTART: { - luaE_setdebt(g, 0); - g->gcrunning = 1; - break; - } - case LUA_GCCOLLECT: { - luaC_fullgc(L, 0); - break; - } - case LUA_GCCOUNT: { - /* GC values are expressed in Kbytes: #bytes/2^10 */ - res = cast_int(gettotalbytes(g) >> 10); - break; - } - case LUA_GCCOUNTB: { - res = cast_int(gettotalbytes(g) & 0x3ff); - break; - } - case LUA_GCSTEP: { - if (g->gckind == KGC_GEN) { /* generational mode? */ - res = (g->GCestimate == 0); /* true if it will do major collection */ - luaC_forcestep(L); /* do a single step */ - } - else { - lu_mem debt = cast(lu_mem, data) * 1024 - GCSTEPSIZE; - if (g->gcrunning) - debt += g->GCdebt; /* include current debt */ - luaE_setdebt(g, debt); - luaC_forcestep(L); - if (g->gcstate == GCSpause) /* end of cycle? */ - res = 1; /* signal it */ - } - break; - } - case LUA_GCSETPAUSE: { - res = g->gcpause; - g->gcpause = data; - break; - } - case LUA_GCSETMAJORINC: { - res = g->gcmajorinc; - g->gcmajorinc = data; - break; - } - case LUA_GCSETSTEPMUL: { - res = g->gcstepmul; - g->gcstepmul = data; - break; - } - case LUA_GCISRUNNING: { - res = g->gcrunning; - break; - } - case LUA_GCGEN: { /* change collector to generational mode */ - luaC_changemode(L, KGC_GEN); - break; - } - case LUA_GCINC: { /* change collector to incremental mode */ - luaC_changemode(L, KGC_NORMAL); - break; - } - default: res = -1; /* invalid option */ - } - lua_unlock(L); - return res; -} - - - -/* -** miscellaneous functions -*/ - - -LUA_API int lua_error (lua_State *L) { - lua_lock(L); - api_checknelems(L, 1); - luaG_errormsg(L); - /* code unreachable; will unlock when control actually leaves the kernel */ - return 0; /* to avoid warnings */ -} - - -LUA_API int lua_next (lua_State *L, int idx) { - StkId t; - int more; - lua_lock(L); - t = index2addr(L, idx); - api_check(L, ttistable(t), "table expected"); - more = luaH_next(L, hvalue(t), L->top - 1); - if (more) { - api_incr_top(L); - } - else /* no more elements */ - L->top -= 1; /* remove key */ - lua_unlock(L); - return more; -} - - -LUA_API void lua_concat (lua_State *L, int n) { - lua_lock(L); - api_checknelems(L, n); - if (n >= 2) { - luaC_checkGC(L); - luaV_concat(L, n); - } - else if (n == 0) { /* push empty string */ - setsvalue2s(L, L->top, luaS_newlstr(L, "", 0)); - api_incr_top(L); - } - /* else n == 1; nothing to do */ - lua_unlock(L); -} - - -LUA_API void lua_len (lua_State *L, int idx) { - StkId t; - lua_lock(L); - t = index2addr(L, idx); - luaV_objlen(L, L->top, t); - api_incr_top(L); - lua_unlock(L); -} - - -LUA_API lua_Alloc lua_getallocf (lua_State *L, void **ud) { - lua_Alloc f; - lua_lock(L); - if (ud) *ud = G(L)->ud; - f = G(L)->frealloc; - lua_unlock(L); - return f; -} - - -LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud) { - lua_lock(L); - G(L)->ud = ud; - G(L)->frealloc = f; - lua_unlock(L); -} - - -LUA_API void *lua_newuserdata (lua_State *L, size_t size) { - Udata *u; - lua_lock(L); - luaC_checkGC(L); - u = luaS_newudata(L, size, NULL); - setuvalue(L, L->top, u); - api_incr_top(L); - lua_unlock(L); - return u + 1; -} - - - -static const char *aux_upvalue (StkId fi, int n, TValue **val, - GCObject **owner) { - switch (ttype(fi)) { - case LUA_TCCL: { /* C closure */ - CClosure *f = clCvalue(fi); - if (!(1 <= n && n <= f->nupvalues)) return NULL; - *val = &f->upvalue[n-1]; - if (owner) *owner = obj2gco(f); - return ""; - } - case LUA_TLCL: { /* Lua closure */ - LClosure *f = clLvalue(fi); - TString *name; - Proto *p = f->p; - if (!(1 <= n && n <= p->sizeupvalues)) return NULL; - *val = f->upvals[n-1]->v; - if (owner) *owner = obj2gco(f->upvals[n - 1]); - name = p->upvalues[n-1].name; - return (name == NULL) ? "" : getstr(name); - } - default: return NULL; /* not a closure */ - } -} - - -LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n) { - const char *name; - TValue *val = NULL; /* to avoid warnings */ - lua_lock(L); - name = aux_upvalue(index2addr(L, funcindex), n, &val, NULL); - if (name) { - setobj2s(L, L->top, val); - api_incr_top(L); - } - lua_unlock(L); - return name; -} - - -LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n) { - const char *name; - TValue *val = NULL; /* to avoid warnings */ - GCObject *owner = NULL; /* to avoid warnings */ - StkId fi; - lua_lock(L); - fi = index2addr(L, funcindex); - api_checknelems(L, 1); - name = aux_upvalue(fi, n, &val, &owner); - if (name) { - L->top--; - setobj(L, val, L->top); - luaC_barrier(L, owner, L->top); - } - lua_unlock(L); - return name; -} - - -static UpVal **getupvalref (lua_State *L, int fidx, int n, LClosure **pf) { - LClosure *f; - StkId fi = index2addr(L, fidx); - api_check(L, ttisLclosure(fi), "Lua function expected"); - f = clLvalue(fi); - api_check(L, (1 <= n && n <= f->p->sizeupvalues), "invalid upvalue index"); - if (pf) *pf = f; - return &f->upvals[n - 1]; /* get its upvalue pointer */ -} - - -LUA_API void *lua_upvalueid (lua_State *L, int fidx, int n) { - StkId fi = index2addr(L, fidx); - switch (ttype(fi)) { - case LUA_TLCL: { /* lua closure */ - return *getupvalref(L, fidx, n, NULL); - } - case LUA_TCCL: { /* C closure */ - CClosure *f = clCvalue(fi); - api_check(L, 1 <= n && n <= f->nupvalues, "invalid upvalue index"); - return &f->upvalue[n - 1]; - } - default: { - api_check(L, 0, "closure expected"); - return NULL; - } - } -} - - -LUA_API void lua_upvaluejoin (lua_State *L, int fidx1, int n1, - int fidx2, int n2) { - LClosure *f1; - UpVal **up1 = getupvalref(L, fidx1, n1, &f1); - UpVal **up2 = getupvalref(L, fidx2, n2, NULL); - *up1 = *up2; - luaC_objbarrier(L, f1, *up2); -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lapi.h b/Build/source/libs/lua52/lua52-src/src/lapi.h deleted file mode 100644 index c7d34ad8486..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lapi.h +++ /dev/null @@ -1,24 +0,0 @@ -/* -** $Id: lapi.h,v 2.7.1.1 2013/04/12 18:48:47 roberto Exp $ -** Auxiliary functions from Lua API -** See Copyright Notice in lua.h -*/ - -#ifndef lapi_h -#define lapi_h - - -#include "llimits.h" -#include "lstate.h" - -#define api_incr_top(L) {L->top++; api_check(L, L->top <= L->ci->top, \ - "stack overflow");} - -#define adjustresults(L,nres) \ - { if ((nres) == LUA_MULTRET && L->ci->top < L->top) L->ci->top = L->top; } - -#define api_checknelems(L,n) api_check(L, (n) < (L->top - L->ci->func), \ - "not enough elements in the stack") - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lauxlib.c b/Build/source/libs/lua52/lua52-src/src/lauxlib.c deleted file mode 100644 index b00f8c70968..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lauxlib.c +++ /dev/null @@ -1,959 +0,0 @@ -/* -** $Id: lauxlib.c,v 1.248.1.1 2013/04/12 18:48:47 roberto Exp $ -** Auxiliary functions for building Lua libraries -** See Copyright Notice in lua.h -*/ - - -#include <errno.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - - -/* This file uses only the official API of Lua. -** Any function declared here could be written as an application function. -*/ - -#define lauxlib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" - - -/* -** {====================================================== -** Traceback -** ======================================================= -*/ - - -#define LEVELS1 12 /* size of the first part of the stack */ -#define LEVELS2 10 /* size of the second part of the stack */ - - - -/* -** search for 'objidx' in table at index -1. -** return 1 + string at top if find a good name. -*/ -static int findfield (lua_State *L, int objidx, int level) { - if (level == 0 || !lua_istable(L, -1)) - return 0; /* not found */ - lua_pushnil(L); /* start 'next' loop */ - while (lua_next(L, -2)) { /* for each pair in table */ - if (lua_type(L, -2) == LUA_TSTRING) { /* ignore non-string keys */ - if (lua_rawequal(L, objidx, -1)) { /* found object? */ - lua_pop(L, 1); /* remove value (but keep name) */ - return 1; - } - else if (findfield(L, objidx, level - 1)) { /* try recursively */ - lua_remove(L, -2); /* remove table (but keep name) */ - lua_pushliteral(L, "."); - lua_insert(L, -2); /* place '.' between the two names */ - lua_concat(L, 3); - return 1; - } - } - lua_pop(L, 1); /* remove value */ - } - return 0; /* not found */ -} - - -static int pushglobalfuncname (lua_State *L, lua_Debug *ar) { - int top = lua_gettop(L); - lua_getinfo(L, "f", ar); /* push function */ - lua_pushglobaltable(L); - if (findfield(L, top + 1, 2)) { - lua_copy(L, -1, top + 1); /* move name to proper place */ - lua_pop(L, 2); /* remove pushed values */ - return 1; - } - else { - lua_settop(L, top); /* remove function and global table */ - return 0; - } -} - - -static void pushfuncname (lua_State *L, lua_Debug *ar) { - if (*ar->namewhat != '\0') /* is there a name? */ - lua_pushfstring(L, "function " LUA_QS, ar->name); - else if (*ar->what == 'm') /* main? */ - lua_pushliteral(L, "main chunk"); - else if (*ar->what == 'C') { - if (pushglobalfuncname(L, ar)) { - lua_pushfstring(L, "function " LUA_QS, lua_tostring(L, -1)); - lua_remove(L, -2); /* remove name */ - } - else - lua_pushliteral(L, "?"); - } - else - lua_pushfstring(L, "function <%s:%d>", ar->short_src, ar->linedefined); -} - - -static int countlevels (lua_State *L) { - lua_Debug ar; - int li = 1, le = 1; - /* find an upper bound */ - while (lua_getstack(L, le, &ar)) { li = le; le *= 2; } - /* do a binary search */ - while (li < le) { - int m = (li + le)/2; - if (lua_getstack(L, m, &ar)) li = m + 1; - else le = m; - } - return le - 1; -} - - -LUALIB_API void luaL_traceback (lua_State *L, lua_State *L1, - const char *msg, int level) { - lua_Debug ar; - int top = lua_gettop(L); - int numlevels = countlevels(L1); - int mark = (numlevels > LEVELS1 + LEVELS2) ? LEVELS1 : 0; - if (msg) lua_pushfstring(L, "%s\n", msg); - lua_pushliteral(L, "stack traceback:"); - while (lua_getstack(L1, level++, &ar)) { - if (level == mark) { /* too many levels? */ - lua_pushliteral(L, "\n\t..."); /* add a '...' */ - level = numlevels - LEVELS2; /* and skip to last ones */ - } - else { - lua_getinfo(L1, "Slnt", &ar); - lua_pushfstring(L, "\n\t%s:", ar.short_src); - if (ar.currentline > 0) - lua_pushfstring(L, "%d:", ar.currentline); - lua_pushliteral(L, " in "); - pushfuncname(L, &ar); - if (ar.istailcall) - lua_pushliteral(L, "\n\t(...tail calls...)"); - lua_concat(L, lua_gettop(L) - top); - } - } - lua_concat(L, lua_gettop(L) - top); -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Error-report functions -** ======================================================= -*/ - -LUALIB_API int luaL_argerror (lua_State *L, int narg, const char *extramsg) { - lua_Debug ar; - if (!lua_getstack(L, 0, &ar)) /* no stack frame? */ - return luaL_error(L, "bad argument #%d (%s)", narg, extramsg); - lua_getinfo(L, "n", &ar); - if (strcmp(ar.namewhat, "method") == 0) { - narg--; /* do not count `self' */ - if (narg == 0) /* error is in the self argument itself? */ - return luaL_error(L, "calling " LUA_QS " on bad self (%s)", - ar.name, extramsg); - } - if (ar.name == NULL) - ar.name = (pushglobalfuncname(L, &ar)) ? lua_tostring(L, -1) : "?"; - return luaL_error(L, "bad argument #%d to " LUA_QS " (%s)", - narg, ar.name, extramsg); -} - - -static int typeerror (lua_State *L, int narg, const char *tname) { - const char *msg = lua_pushfstring(L, "%s expected, got %s", - tname, luaL_typename(L, narg)); - return luaL_argerror(L, narg, msg); -} - - -static void tag_error (lua_State *L, int narg, int tag) { - typeerror(L, narg, lua_typename(L, tag)); -} - - -LUALIB_API void luaL_where (lua_State *L, int level) { - lua_Debug ar; - if (lua_getstack(L, level, &ar)) { /* check function at level */ - lua_getinfo(L, "Sl", &ar); /* get info about it */ - if (ar.currentline > 0) { /* is there info? */ - lua_pushfstring(L, "%s:%d: ", ar.short_src, ar.currentline); - return; - } - } - lua_pushliteral(L, ""); /* else, no information available... */ -} - - -LUALIB_API int luaL_error (lua_State *L, const char *fmt, ...) { - va_list argp; - va_start(argp, fmt); - luaL_where(L, 1); - lua_pushvfstring(L, fmt, argp); - va_end(argp); - lua_concat(L, 2); - return lua_error(L); -} - - -LUALIB_API int luaL_fileresult (lua_State *L, int stat, const char *fname) { - int en = errno; /* calls to Lua API may change this value */ - if (stat) { - lua_pushboolean(L, 1); - return 1; - } - else { - lua_pushnil(L); - if (fname) - lua_pushfstring(L, "%s: %s", fname, strerror(en)); - else - lua_pushstring(L, strerror(en)); - lua_pushinteger(L, en); - return 3; - } -} - - -#if !defined(inspectstat) /* { */ - -#if defined(LUA_USE_POSIX) - -#include <sys/wait.h> - -/* -** use appropriate macros to interpret 'pclose' return status -*/ -#define inspectstat(stat,what) \ - if (WIFEXITED(stat)) { stat = WEXITSTATUS(stat); } \ - else if (WIFSIGNALED(stat)) { stat = WTERMSIG(stat); what = "signal"; } - -#else - -#define inspectstat(stat,what) /* no op */ - -#endif - -#endif /* } */ - - -LUALIB_API int luaL_execresult (lua_State *L, int stat) { - const char *what = "exit"; /* type of termination */ - if (stat == -1) /* error? */ - return luaL_fileresult(L, 0, NULL); - else { - inspectstat(stat, what); /* interpret result */ - if (*what == 'e' && stat == 0) /* successful termination? */ - lua_pushboolean(L, 1); - else - lua_pushnil(L); - lua_pushstring(L, what); - lua_pushinteger(L, stat); - return 3; /* return true/nil,what,code */ - } -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Userdata's metatable manipulation -** ======================================================= -*/ - -LUALIB_API int luaL_newmetatable (lua_State *L, const char *tname) { - luaL_getmetatable(L, tname); /* try to get metatable */ - if (!lua_isnil(L, -1)) /* name already in use? */ - return 0; /* leave previous value on top, but return 0 */ - lua_pop(L, 1); - lua_newtable(L); /* create metatable */ - lua_pushvalue(L, -1); - lua_setfield(L, LUA_REGISTRYINDEX, tname); /* registry.name = metatable */ - return 1; -} - - -LUALIB_API void luaL_setmetatable (lua_State *L, const char *tname) { - luaL_getmetatable(L, tname); - lua_setmetatable(L, -2); -} - - -LUALIB_API void *luaL_testudata (lua_State *L, int ud, const char *tname) { - void *p = lua_touserdata(L, ud); - if (p != NULL) { /* value is a userdata? */ - if (lua_getmetatable(L, ud)) { /* does it have a metatable? */ - luaL_getmetatable(L, tname); /* get correct metatable */ - if (!lua_rawequal(L, -1, -2)) /* not the same? */ - p = NULL; /* value is a userdata with wrong metatable */ - lua_pop(L, 2); /* remove both metatables */ - return p; - } - } - return NULL; /* value is not a userdata with a metatable */ -} - - -LUALIB_API void *luaL_checkudata (lua_State *L, int ud, const char *tname) { - void *p = luaL_testudata(L, ud, tname); - if (p == NULL) typeerror(L, ud, tname); - return p; -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Argument check functions -** ======================================================= -*/ - -LUALIB_API int luaL_checkoption (lua_State *L, int narg, const char *def, - const char *const lst[]) { - const char *name = (def) ? luaL_optstring(L, narg, def) : - luaL_checkstring(L, narg); - int i; - for (i=0; lst[i]; i++) - if (strcmp(lst[i], name) == 0) - return i; - return luaL_argerror(L, narg, - lua_pushfstring(L, "invalid option " LUA_QS, name)); -} - - -LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *msg) { - /* keep some extra space to run error routines, if needed */ - const int extra = LUA_MINSTACK; - if (!lua_checkstack(L, space + extra)) { - if (msg) - luaL_error(L, "stack overflow (%s)", msg); - else - luaL_error(L, "stack overflow"); - } -} - - -LUALIB_API void luaL_checktype (lua_State *L, int narg, int t) { - if (lua_type(L, narg) != t) - tag_error(L, narg, t); -} - - -LUALIB_API void luaL_checkany (lua_State *L, int narg) { - if (lua_type(L, narg) == LUA_TNONE) - luaL_argerror(L, narg, "value expected"); -} - - -LUALIB_API const char *luaL_checklstring (lua_State *L, int narg, size_t *len) { - const char *s = lua_tolstring(L, narg, len); - if (!s) tag_error(L, narg, LUA_TSTRING); - return s; -} - - -LUALIB_API const char *luaL_optlstring (lua_State *L, int narg, - const char *def, size_t *len) { - if (lua_isnoneornil(L, narg)) { - if (len) - *len = (def ? strlen(def) : 0); - return def; - } - else return luaL_checklstring(L, narg, len); -} - - -LUALIB_API lua_Number luaL_checknumber (lua_State *L, int narg) { - int isnum; - lua_Number d = lua_tonumberx(L, narg, &isnum); - if (!isnum) - tag_error(L, narg, LUA_TNUMBER); - return d; -} - - -LUALIB_API lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number def) { - return luaL_opt(L, luaL_checknumber, narg, def); -} - - -LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) { - int isnum; - lua_Integer d = lua_tointegerx(L, narg, &isnum); - if (!isnum) - tag_error(L, narg, LUA_TNUMBER); - return d; -} - - -LUALIB_API lua_Unsigned luaL_checkunsigned (lua_State *L, int narg) { - int isnum; - lua_Unsigned d = lua_tounsignedx(L, narg, &isnum); - if (!isnum) - tag_error(L, narg, LUA_TNUMBER); - return d; -} - - -LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int narg, - lua_Integer def) { - return luaL_opt(L, luaL_checkinteger, narg, def); -} - - -LUALIB_API lua_Unsigned luaL_optunsigned (lua_State *L, int narg, - lua_Unsigned def) { - return luaL_opt(L, luaL_checkunsigned, narg, def); -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Generic Buffer manipulation -** ======================================================= -*/ - -/* -** check whether buffer is using a userdata on the stack as a temporary -** buffer -*/ -#define buffonstack(B) ((B)->b != (B)->initb) - - -/* -** returns a pointer to a free area with at least 'sz' bytes -*/ -LUALIB_API char *luaL_prepbuffsize (luaL_Buffer *B, size_t sz) { - lua_State *L = B->L; - if (B->size - B->n < sz) { /* not enough space? */ - char *newbuff; - size_t newsize = B->size * 2; /* double buffer size */ - if (newsize - B->n < sz) /* not big enough? */ - newsize = B->n + sz; - if (newsize < B->n || newsize - B->n < sz) - luaL_error(L, "buffer too large"); - /* create larger buffer */ - newbuff = (char *)lua_newuserdata(L, newsize * sizeof(char)); - /* move content to new buffer */ - memcpy(newbuff, B->b, B->n * sizeof(char)); - if (buffonstack(B)) - lua_remove(L, -2); /* remove old buffer */ - B->b = newbuff; - B->size = newsize; - } - return &B->b[B->n]; -} - - -LUALIB_API void luaL_addlstring (luaL_Buffer *B, const char *s, size_t l) { - char *b = luaL_prepbuffsize(B, l); - memcpy(b, s, l * sizeof(char)); - luaL_addsize(B, l); -} - - -LUALIB_API void luaL_addstring (luaL_Buffer *B, const char *s) { - luaL_addlstring(B, s, strlen(s)); -} - - -LUALIB_API void luaL_pushresult (luaL_Buffer *B) { - lua_State *L = B->L; - lua_pushlstring(L, B->b, B->n); - if (buffonstack(B)) - lua_remove(L, -2); /* remove old buffer */ -} - - -LUALIB_API void luaL_pushresultsize (luaL_Buffer *B, size_t sz) { - luaL_addsize(B, sz); - luaL_pushresult(B); -} - - -LUALIB_API void luaL_addvalue (luaL_Buffer *B) { - lua_State *L = B->L; - size_t l; - const char *s = lua_tolstring(L, -1, &l); - if (buffonstack(B)) - lua_insert(L, -2); /* put value below buffer */ - luaL_addlstring(B, s, l); - lua_remove(L, (buffonstack(B)) ? -2 : -1); /* remove value */ -} - - -LUALIB_API void luaL_buffinit (lua_State *L, luaL_Buffer *B) { - B->L = L; - B->b = B->initb; - B->n = 0; - B->size = LUAL_BUFFERSIZE; -} - - -LUALIB_API char *luaL_buffinitsize (lua_State *L, luaL_Buffer *B, size_t sz) { - luaL_buffinit(L, B); - return luaL_prepbuffsize(B, sz); -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Reference system -** ======================================================= -*/ - -/* index of free-list header */ -#define freelist 0 - - -LUALIB_API int luaL_ref (lua_State *L, int t) { - int ref; - if (lua_isnil(L, -1)) { - lua_pop(L, 1); /* remove from stack */ - return LUA_REFNIL; /* `nil' has a unique fixed reference */ - } - t = lua_absindex(L, t); - lua_rawgeti(L, t, freelist); /* get first free element */ - ref = (int)lua_tointeger(L, -1); /* ref = t[freelist] */ - lua_pop(L, 1); /* remove it from stack */ - if (ref != 0) { /* any free element? */ - lua_rawgeti(L, t, ref); /* remove it from list */ - lua_rawseti(L, t, freelist); /* (t[freelist] = t[ref]) */ - } - else /* no free elements */ - ref = (int)lua_rawlen(L, t) + 1; /* get a new reference */ - lua_rawseti(L, t, ref); - return ref; -} - - -LUALIB_API void luaL_unref (lua_State *L, int t, int ref) { - if (ref >= 0) { - t = lua_absindex(L, t); - lua_rawgeti(L, t, freelist); - lua_rawseti(L, t, ref); /* t[ref] = t[freelist] */ - lua_pushinteger(L, ref); - lua_rawseti(L, t, freelist); /* t[freelist] = ref */ - } -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Load functions -** ======================================================= -*/ - -typedef struct LoadF { - int n; /* number of pre-read characters */ - FILE *f; /* file being read */ - char buff[LUAL_BUFFERSIZE]; /* area for reading file */ -} LoadF; - - -static const char *getF (lua_State *L, void *ud, size_t *size) { - LoadF *lf = (LoadF *)ud; - (void)L; /* not used */ - if (lf->n > 0) { /* are there pre-read characters to be read? */ - *size = lf->n; /* return them (chars already in buffer) */ - lf->n = 0; /* no more pre-read characters */ - } - else { /* read a block from file */ - /* 'fread' can return > 0 *and* set the EOF flag. If next call to - 'getF' called 'fread', it might still wait for user input. - The next check avoids this problem. */ - if (feof(lf->f)) return NULL; - *size = fread(lf->buff, 1, sizeof(lf->buff), lf->f); /* read block */ - } - return lf->buff; -} - - -static int errfile (lua_State *L, const char *what, int fnameindex) { - const char *serr = strerror(errno); - const char *filename = lua_tostring(L, fnameindex) + 1; - lua_pushfstring(L, "cannot %s %s: %s", what, filename, serr); - lua_remove(L, fnameindex); - return LUA_ERRFILE; -} - - -static int skipBOM (LoadF *lf) { - const char *p = "\xEF\xBB\xBF"; /* Utf8 BOM mark */ - int c; - lf->n = 0; - do { - c = getc(lf->f); - if (c == EOF || c != *(const unsigned char *)p++) return c; - lf->buff[lf->n++] = c; /* to be read by the parser */ - } while (*p != '\0'); - lf->n = 0; /* prefix matched; discard it */ - return getc(lf->f); /* return next character */ -} - - -/* -** reads the first character of file 'f' and skips an optional BOM mark -** in its beginning plus its first line if it starts with '#'. Returns -** true if it skipped the first line. In any case, '*cp' has the -** first "valid" character of the file (after the optional BOM and -** a first-line comment). -*/ -static int skipcomment (LoadF *lf, int *cp) { - int c = *cp = skipBOM(lf); - if (c == '#') { /* first line is a comment (Unix exec. file)? */ - do { /* skip first line */ - c = getc(lf->f); - } while (c != EOF && c != '\n') ; - *cp = getc(lf->f); /* skip end-of-line, if present */ - return 1; /* there was a comment */ - } - else return 0; /* no comment */ -} - - -LUALIB_API int luaL_loadfilex (lua_State *L, const char *filename, - const char *mode) { - LoadF lf; - int status, readstatus; - int c; - int fnameindex = lua_gettop(L) + 1; /* index of filename on the stack */ - if (filename == NULL) { - lua_pushliteral(L, "=stdin"); - lf.f = stdin; - } - else { - lua_pushfstring(L, "@%s", filename); - lf.f = fopen(filename, "r"); - if (lf.f == NULL) return errfile(L, "open", fnameindex); - } - if (skipcomment(&lf, &c)) /* read initial portion */ - lf.buff[lf.n++] = '\n'; /* add line to correct line numbers */ - if (c == LUA_SIGNATURE[0] && filename) { /* binary file? */ - lf.f = freopen(filename, "rb", lf.f); /* reopen in binary mode */ - if (lf.f == NULL) return errfile(L, "reopen", fnameindex); - skipcomment(&lf, &c); /* re-read initial portion */ - } - if (c != EOF) - lf.buff[lf.n++] = c; /* 'c' is the first character of the stream */ - status = lua_load(L, getF, &lf, lua_tostring(L, -1), mode); - readstatus = ferror(lf.f); - if (filename) fclose(lf.f); /* close file (even in case of errors) */ - if (readstatus) { - lua_settop(L, fnameindex); /* ignore results from `lua_load' */ - return errfile(L, "read", fnameindex); - } - lua_remove(L, fnameindex); - return status; -} - - -typedef struct LoadS { - const char *s; - size_t size; -} LoadS; - - -static const char *getS (lua_State *L, void *ud, size_t *size) { - LoadS *ls = (LoadS *)ud; - (void)L; /* not used */ - if (ls->size == 0) return NULL; - *size = ls->size; - ls->size = 0; - return ls->s; -} - - -LUALIB_API int luaL_loadbufferx (lua_State *L, const char *buff, size_t size, - const char *name, const char *mode) { - LoadS ls; - ls.s = buff; - ls.size = size; - return lua_load(L, getS, &ls, name, mode); -} - - -LUALIB_API int luaL_loadstring (lua_State *L, const char *s) { - return luaL_loadbuffer(L, s, strlen(s), s); -} - -/* }====================================================== */ - - - -LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) { - if (!lua_getmetatable(L, obj)) /* no metatable? */ - return 0; - lua_pushstring(L, event); - lua_rawget(L, -2); - if (lua_isnil(L, -1)) { - lua_pop(L, 2); /* remove metatable and metafield */ - return 0; - } - else { - lua_remove(L, -2); /* remove only metatable */ - return 1; - } -} - - -LUALIB_API int luaL_callmeta (lua_State *L, int obj, const char *event) { - obj = lua_absindex(L, obj); - if (!luaL_getmetafield(L, obj, event)) /* no metafield? */ - return 0; - lua_pushvalue(L, obj); - lua_call(L, 1, 1); - return 1; -} - - -LUALIB_API int luaL_len (lua_State *L, int idx) { - int l; - int isnum; - lua_len(L, idx); - l = (int)lua_tointegerx(L, -1, &isnum); - if (!isnum) - luaL_error(L, "object length is not a number"); - lua_pop(L, 1); /* remove object */ - return l; -} - - -LUALIB_API const char *luaL_tolstring (lua_State *L, int idx, size_t *len) { - if (!luaL_callmeta(L, idx, "__tostring")) { /* no metafield? */ - switch (lua_type(L, idx)) { - case LUA_TNUMBER: - case LUA_TSTRING: - lua_pushvalue(L, idx); - break; - case LUA_TBOOLEAN: - lua_pushstring(L, (lua_toboolean(L, idx) ? "true" : "false")); - break; - case LUA_TNIL: - lua_pushliteral(L, "nil"); - break; - default: - lua_pushfstring(L, "%s: %p", luaL_typename(L, idx), - lua_topointer(L, idx)); - break; - } - } - return lua_tolstring(L, -1, len); -} - - -/* -** {====================================================== -** Compatibility with 5.1 module functions -** ======================================================= -*/ -#if defined(LUA_COMPAT_MODULE) - -static const char *luaL_findtable (lua_State *L, int idx, - const char *fname, int szhint) { - const char *e; - if (idx) lua_pushvalue(L, idx); - do { - e = strchr(fname, '.'); - if (e == NULL) e = fname + strlen(fname); - lua_pushlstring(L, fname, e - fname); - lua_rawget(L, -2); - if (lua_isnil(L, -1)) { /* no such field? */ - lua_pop(L, 1); /* remove this nil */ - lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */ - lua_pushlstring(L, fname, e - fname); - lua_pushvalue(L, -2); - lua_settable(L, -4); /* set new table into field */ - } - else if (!lua_istable(L, -1)) { /* field has a non-table value? */ - lua_pop(L, 2); /* remove table and value */ - return fname; /* return problematic part of the name */ - } - lua_remove(L, -2); /* remove previous table */ - fname = e + 1; - } while (*e == '.'); - return NULL; -} - - -/* -** Count number of elements in a luaL_Reg list. -*/ -static int libsize (const luaL_Reg *l) { - int size = 0; - for (; l && l->name; l++) size++; - return size; -} - - -/* -** Find or create a module table with a given name. The function -** first looks at the _LOADED table and, if that fails, try a -** global variable with that name. In any case, leaves on the stack -** the module table. -*/ -LUALIB_API void luaL_pushmodule (lua_State *L, const char *modname, - int sizehint) { - luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 1); /* get _LOADED table */ - lua_getfield(L, -1, modname); /* get _LOADED[modname] */ - if (!lua_istable(L, -1)) { /* not found? */ - lua_pop(L, 1); /* remove previous result */ - /* try global variable (and create one if it does not exist) */ - lua_pushglobaltable(L); - if (luaL_findtable(L, 0, modname, sizehint) != NULL) - luaL_error(L, "name conflict for module " LUA_QS, modname); - lua_pushvalue(L, -1); - lua_setfield(L, -3, modname); /* _LOADED[modname] = new table */ - } - lua_remove(L, -2); /* remove _LOADED table */ -} - - -LUALIB_API void luaL_openlib (lua_State *L, const char *libname, - const luaL_Reg *l, int nup) { - luaL_checkversion(L); - if (libname) { - luaL_pushmodule(L, libname, libsize(l)); /* get/create library table */ - lua_insert(L, -(nup + 1)); /* move library table to below upvalues */ - } - if (l) - luaL_setfuncs(L, l, nup); - else - lua_pop(L, nup); /* remove upvalues */ -} - -#endif -/* }====================================================== */ - -/* -** set functions from list 'l' into table at top - 'nup'; each -** function gets the 'nup' elements at the top as upvalues. -** Returns with only the table at the stack. -*/ -LUALIB_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) { - luaL_checkversion(L); - luaL_checkstack(L, nup, "too many upvalues"); - for (; l->name != NULL; l++) { /* fill the table with given functions */ - int i; - for (i = 0; i < nup; i++) /* copy upvalues to the top */ - lua_pushvalue(L, -nup); - lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */ - lua_setfield(L, -(nup + 2), l->name); - } - lua_pop(L, nup); /* remove upvalues */ -} - - -/* -** ensure that stack[idx][fname] has a table and push that table -** into the stack -*/ -LUALIB_API int luaL_getsubtable (lua_State *L, int idx, const char *fname) { - lua_getfield(L, idx, fname); - if (lua_istable(L, -1)) return 1; /* table already there */ - else { - lua_pop(L, 1); /* remove previous result */ - idx = lua_absindex(L, idx); - lua_newtable(L); - lua_pushvalue(L, -1); /* copy to be left at top */ - lua_setfield(L, idx, fname); /* assign new table to field */ - return 0; /* false, because did not find table there */ - } -} - - -/* -** stripped-down 'require'. Calls 'openf' to open a module, -** registers the result in 'package.loaded' table and, if 'glb' -** is true, also registers the result in the global table. -** Leaves resulting module on the top. -*/ -LUALIB_API void luaL_requiref (lua_State *L, const char *modname, - lua_CFunction openf, int glb) { - lua_pushcfunction(L, openf); - lua_pushstring(L, modname); /* argument to open function */ - lua_call(L, 1, 1); /* open module */ - luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); - lua_pushvalue(L, -2); /* make copy of module (call result) */ - lua_setfield(L, -2, modname); /* _LOADED[modname] = module */ - lua_pop(L, 1); /* remove _LOADED table */ - if (glb) { - lua_pushvalue(L, -1); /* copy of 'mod' */ - lua_setglobal(L, modname); /* _G[modname] = module */ - } -} - - -LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p, - const char *r) { - const char *wild; - size_t l = strlen(p); - luaL_Buffer b; - luaL_buffinit(L, &b); - while ((wild = strstr(s, p)) != NULL) { - luaL_addlstring(&b, s, wild - s); /* push prefix */ - luaL_addstring(&b, r); /* push replacement in place of pattern */ - s = wild + l; /* continue after `p' */ - } - luaL_addstring(&b, s); /* push last suffix */ - luaL_pushresult(&b); - return lua_tostring(L, -1); -} - - -static void *l_alloc (void *ud, void *ptr, size_t osize, size_t nsize) { - (void)ud; (void)osize; /* not used */ - if (nsize == 0) { - free(ptr); - return NULL; - } - else - return realloc(ptr, nsize); -} - - -static int panic (lua_State *L) { - luai_writestringerror("PANIC: unprotected error in call to Lua API (%s)\n", - lua_tostring(L, -1)); - return 0; /* return to Lua to abort */ -} - - -LUALIB_API lua_State *luaL_newstate (void) { - lua_State *L = lua_newstate(l_alloc, NULL); - if (L) lua_atpanic(L, &panic); - return L; -} - - -LUALIB_API void luaL_checkversion_ (lua_State *L, lua_Number ver) { - const lua_Number *v = lua_version(L); - if (v != lua_version(NULL)) - luaL_error(L, "multiple Lua VMs detected"); - else if (*v != ver) - luaL_error(L, "version mismatch: app. needs %f, Lua core provides %f", - ver, *v); - /* check conversions number -> integer types */ - lua_pushnumber(L, -(lua_Number)0x1234); - if (lua_tointeger(L, -1) != -0x1234 || - lua_tounsigned(L, -1) != (lua_Unsigned)-0x1234) - luaL_error(L, "bad conversion number->int;" - " must recompile Lua with proper settings"); - lua_pop(L, 1); -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lauxlib.h b/Build/source/libs/lua52/lua52-src/src/lauxlib.h deleted file mode 100644 index 0fb023b8e73..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lauxlib.h +++ /dev/null @@ -1,212 +0,0 @@ -/* -** $Id: lauxlib.h,v 1.120.1.1 2013/04/12 18:48:47 roberto Exp $ -** Auxiliary functions for building Lua libraries -** See Copyright Notice in lua.h -*/ - - -#ifndef lauxlib_h -#define lauxlib_h - - -#include <stddef.h> -#include <stdio.h> - -#include "lua.h" - - - -/* extra error code for `luaL_load' */ -#define LUA_ERRFILE (LUA_ERRERR+1) - - -typedef struct luaL_Reg { - const char *name; - lua_CFunction func; -} luaL_Reg; - - -LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver); -#define luaL_checkversion(L) luaL_checkversion_(L, LUA_VERSION_NUM) - -LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e); -LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e); -LUALIB_API const char *(luaL_tolstring) (lua_State *L, int idx, size_t *len); -LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg); -LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg, - size_t *l); -LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg, - const char *def, size_t *l); -LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg); -LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def); - -LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg); -LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg, - lua_Integer def); -LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg); -LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg, - lua_Unsigned def); - -LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg); -LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t); -LUALIB_API void (luaL_checkany) (lua_State *L, int narg); - -LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname); -LUALIB_API void (luaL_setmetatable) (lua_State *L, const char *tname); -LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname); -LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname); - -LUALIB_API void (luaL_where) (lua_State *L, int lvl); -LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...); - -LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def, - const char *const lst[]); - -LUALIB_API int (luaL_fileresult) (lua_State *L, int stat, const char *fname); -LUALIB_API int (luaL_execresult) (lua_State *L, int stat); - -/* pre-defined references */ -#define LUA_NOREF (-2) -#define LUA_REFNIL (-1) - -LUALIB_API int (luaL_ref) (lua_State *L, int t); -LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref); - -LUALIB_API int (luaL_loadfilex) (lua_State *L, const char *filename, - const char *mode); - -#define luaL_loadfile(L,f) luaL_loadfilex(L,f,NULL) - -LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz, - const char *name, const char *mode); -LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s); - -LUALIB_API lua_State *(luaL_newstate) (void); - -LUALIB_API int (luaL_len) (lua_State *L, int idx); - -LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p, - const char *r); - -LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup); - -LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname); - -LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1, - const char *msg, int level); - -LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname, - lua_CFunction openf, int glb); - -/* -** =============================================================== -** some useful macros -** =============================================================== -*/ - - -#define luaL_newlibtable(L,l) \ - lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1) - -#define luaL_newlib(L,l) (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0)) - -#define luaL_argcheck(L, cond,numarg,extramsg) \ - ((void)((cond) || luaL_argerror(L, (numarg), (extramsg)))) -#define luaL_checkstring(L,n) (luaL_checklstring(L, (n), NULL)) -#define luaL_optstring(L,n,d) (luaL_optlstring(L, (n), (d), NULL)) -#define luaL_checkint(L,n) ((int)luaL_checkinteger(L, (n))) -#define luaL_optint(L,n,d) ((int)luaL_optinteger(L, (n), (d))) -#define luaL_checklong(L,n) ((long)luaL_checkinteger(L, (n))) -#define luaL_optlong(L,n,d) ((long)luaL_optinteger(L, (n), (d))) - -#define luaL_typename(L,i) lua_typename(L, lua_type(L,(i))) - -#define luaL_dofile(L, fn) \ - (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0)) - -#define luaL_dostring(L, s) \ - (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0)) - -#define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n))) - -#define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n))) - -#define luaL_loadbuffer(L,s,sz,n) luaL_loadbufferx(L,s,sz,n,NULL) - - -/* -** {====================================================== -** Generic Buffer manipulation -** ======================================================= -*/ - -typedef struct luaL_Buffer { - char *b; /* buffer address */ - size_t size; /* buffer size */ - size_t n; /* number of characters in buffer */ - lua_State *L; - char initb[LUAL_BUFFERSIZE]; /* initial buffer */ -} luaL_Buffer; - - -#define luaL_addchar(B,c) \ - ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \ - ((B)->b[(B)->n++] = (c))) - -#define luaL_addsize(B,s) ((B)->n += (s)) - -LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B); -LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz); -LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l); -LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s); -LUALIB_API void (luaL_addvalue) (luaL_Buffer *B); -LUALIB_API void (luaL_pushresult) (luaL_Buffer *B); -LUALIB_API void (luaL_pushresultsize) (luaL_Buffer *B, size_t sz); -LUALIB_API char *(luaL_buffinitsize) (lua_State *L, luaL_Buffer *B, size_t sz); - -#define luaL_prepbuffer(B) luaL_prepbuffsize(B, LUAL_BUFFERSIZE) - -/* }====================================================== */ - - - -/* -** {====================================================== -** File handles for IO library -** ======================================================= -*/ - -/* -** A file handle is a userdata with metatable 'LUA_FILEHANDLE' and -** initial structure 'luaL_Stream' (it may contain other fields -** after that initial structure). -*/ - -#define LUA_FILEHANDLE "FILE*" - - -typedef struct luaL_Stream { - FILE *f; /* stream (NULL for incompletely created streams) */ - lua_CFunction closef; /* to close stream (NULL for closed streams) */ -} luaL_Stream; - -/* }====================================================== */ - - - -/* compatibility with old module system */ -#if defined(LUA_COMPAT_MODULE) - -LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname, - int sizehint); -LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname, - const luaL_Reg *l, int nup); - -#define luaL_register(L,n,l) (luaL_openlib(L,(n),(l),0)) - -#endif - - -#endif - - diff --git a/Build/source/libs/lua52/lua52-src/src/lbaselib.c b/Build/source/libs/lua52/lua52-src/src/lbaselib.c deleted file mode 100644 index 5255b3cd9b7..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lbaselib.c +++ /dev/null @@ -1,458 +0,0 @@ -/* -** $Id: lbaselib.c,v 1.276.1.1 2013/04/12 18:48:47 roberto Exp $ -** Basic library -** See Copyright Notice in lua.h -*/ - - - -#include <ctype.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define lbaselib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -static int luaB_print (lua_State *L) { - int n = lua_gettop(L); /* number of arguments */ - int i; - lua_getglobal(L, "tostring"); - for (i=1; i<=n; i++) { - const char *s; - size_t l; - lua_pushvalue(L, -1); /* function to be called */ - lua_pushvalue(L, i); /* value to print */ - lua_call(L, 1, 1); - s = lua_tolstring(L, -1, &l); /* get result */ - if (s == NULL) - return luaL_error(L, - LUA_QL("tostring") " must return a string to " LUA_QL("print")); - if (i>1) luai_writestring("\t", 1); - luai_writestring(s, l); - lua_pop(L, 1); /* pop result */ - } - luai_writeline(); - return 0; -} - - -#define SPACECHARS " \f\n\r\t\v" - -static int luaB_tonumber (lua_State *L) { - if (lua_isnoneornil(L, 2)) { /* standard conversion */ - int isnum; - lua_Number n = lua_tonumberx(L, 1, &isnum); - if (isnum) { - lua_pushnumber(L, n); - return 1; - } /* else not a number; must be something */ - luaL_checkany(L, 1); - } - else { - size_t l; - const char *s = luaL_checklstring(L, 1, &l); - const char *e = s + l; /* end point for 's' */ - int base = luaL_checkint(L, 2); - int neg = 0; - luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range"); - s += strspn(s, SPACECHARS); /* skip initial spaces */ - if (*s == '-') { s++; neg = 1; } /* handle signal */ - else if (*s == '+') s++; - if (isalnum((unsigned char)*s)) { - lua_Number n = 0; - do { - int digit = (isdigit((unsigned char)*s)) ? *s - '0' - : toupper((unsigned char)*s) - 'A' + 10; - if (digit >= base) break; /* invalid numeral; force a fail */ - n = n * (lua_Number)base + (lua_Number)digit; - s++; - } while (isalnum((unsigned char)*s)); - s += strspn(s, SPACECHARS); /* skip trailing spaces */ - if (s == e) { /* no invalid trailing characters? */ - lua_pushnumber(L, (neg) ? -n : n); - return 1; - } /* else not a number */ - } /* else not a number */ - } - lua_pushnil(L); /* not a number */ - return 1; -} - - -static int luaB_error (lua_State *L) { - int level = luaL_optint(L, 2, 1); - lua_settop(L, 1); - if (lua_isstring(L, 1) && level > 0) { /* add extra information? */ - luaL_where(L, level); - lua_pushvalue(L, 1); - lua_concat(L, 2); - } - return lua_error(L); -} - - -static int luaB_getmetatable (lua_State *L) { - luaL_checkany(L, 1); - if (!lua_getmetatable(L, 1)) { - lua_pushnil(L); - return 1; /* no metatable */ - } - luaL_getmetafield(L, 1, "__metatable"); - return 1; /* returns either __metatable field (if present) or metatable */ -} - - -static int luaB_setmetatable (lua_State *L) { - int t = lua_type(L, 2); - luaL_checktype(L, 1, LUA_TTABLE); - luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2, - "nil or table expected"); - if (luaL_getmetafield(L, 1, "__metatable")) - return luaL_error(L, "cannot change a protected metatable"); - lua_settop(L, 2); - lua_setmetatable(L, 1); - return 1; -} - - -static int luaB_rawequal (lua_State *L) { - luaL_checkany(L, 1); - luaL_checkany(L, 2); - lua_pushboolean(L, lua_rawequal(L, 1, 2)); - return 1; -} - - -static int luaB_rawlen (lua_State *L) { - int t = lua_type(L, 1); - luaL_argcheck(L, t == LUA_TTABLE || t == LUA_TSTRING, 1, - "table or string expected"); - lua_pushinteger(L, lua_rawlen(L, 1)); - return 1; -} - - -static int luaB_rawget (lua_State *L) { - luaL_checktype(L, 1, LUA_TTABLE); - luaL_checkany(L, 2); - lua_settop(L, 2); - lua_rawget(L, 1); - return 1; -} - -static int luaB_rawset (lua_State *L) { - luaL_checktype(L, 1, LUA_TTABLE); - luaL_checkany(L, 2); - luaL_checkany(L, 3); - lua_settop(L, 3); - lua_rawset(L, 1); - return 1; -} - - -static int luaB_collectgarbage (lua_State *L) { - static const char *const opts[] = {"stop", "restart", "collect", - "count", "step", "setpause", "setstepmul", - "setmajorinc", "isrunning", "generational", "incremental", NULL}; - static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT, - LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL, - LUA_GCSETMAJORINC, LUA_GCISRUNNING, LUA_GCGEN, LUA_GCINC}; - int o = optsnum[luaL_checkoption(L, 1, "collect", opts)]; - int ex = luaL_optint(L, 2, 0); - int res = lua_gc(L, o, ex); - switch (o) { - case LUA_GCCOUNT: { - int b = lua_gc(L, LUA_GCCOUNTB, 0); - lua_pushnumber(L, res + ((lua_Number)b/1024)); - lua_pushinteger(L, b); - return 2; - } - case LUA_GCSTEP: case LUA_GCISRUNNING: { - lua_pushboolean(L, res); - return 1; - } - default: { - lua_pushinteger(L, res); - return 1; - } - } -} - - -static int luaB_type (lua_State *L) { - luaL_checkany(L, 1); - lua_pushstring(L, luaL_typename(L, 1)); - return 1; -} - - -static int pairsmeta (lua_State *L, const char *method, int iszero, - lua_CFunction iter) { - if (!luaL_getmetafield(L, 1, method)) { /* no metamethod? */ - luaL_checktype(L, 1, LUA_TTABLE); /* argument must be a table */ - lua_pushcfunction(L, iter); /* will return generator, */ - lua_pushvalue(L, 1); /* state, */ - if (iszero) lua_pushinteger(L, 0); /* and initial value */ - else lua_pushnil(L); - } - else { - lua_pushvalue(L, 1); /* argument 'self' to metamethod */ - lua_call(L, 1, 3); /* get 3 values from metamethod */ - } - return 3; -} - - -static int luaB_next (lua_State *L) { - luaL_checktype(L, 1, LUA_TTABLE); - lua_settop(L, 2); /* create a 2nd argument if there isn't one */ - if (lua_next(L, 1)) - return 2; - else { - lua_pushnil(L); - return 1; - } -} - - -static int luaB_pairs (lua_State *L) { - return pairsmeta(L, "__pairs", 0, luaB_next); -} - - -static int ipairsaux (lua_State *L) { - int i = luaL_checkint(L, 2); - luaL_checktype(L, 1, LUA_TTABLE); - i++; /* next value */ - lua_pushinteger(L, i); - lua_rawgeti(L, 1, i); - return (lua_isnil(L, -1)) ? 1 : 2; -} - - -static int luaB_ipairs (lua_State *L) { - return pairsmeta(L, "__ipairs", 1, ipairsaux); -} - - -static int load_aux (lua_State *L, int status, int envidx) { - if (status == LUA_OK) { - if (envidx != 0) { /* 'env' parameter? */ - lua_pushvalue(L, envidx); /* environment for loaded function */ - if (!lua_setupvalue(L, -2, 1)) /* set it as 1st upvalue */ - lua_pop(L, 1); /* remove 'env' if not used by previous call */ - } - return 1; - } - else { /* error (message is on top of the stack) */ - lua_pushnil(L); - lua_insert(L, -2); /* put before error message */ - return 2; /* return nil plus error message */ - } -} - - -static int luaB_loadfile (lua_State *L) { - const char *fname = luaL_optstring(L, 1, NULL); - const char *mode = luaL_optstring(L, 2, NULL); - int env = (!lua_isnone(L, 3) ? 3 : 0); /* 'env' index or 0 if no 'env' */ - int status = luaL_loadfilex(L, fname, mode); - return load_aux(L, status, env); -} - - -/* -** {====================================================== -** Generic Read function -** ======================================================= -*/ - - -/* -** reserved slot, above all arguments, to hold a copy of the returned -** string to avoid it being collected while parsed. 'load' has four -** optional arguments (chunk, source name, mode, and environment). -*/ -#define RESERVEDSLOT 5 - - -/* -** Reader for generic `load' function: `lua_load' uses the -** stack for internal stuff, so the reader cannot change the -** stack top. Instead, it keeps its resulting string in a -** reserved slot inside the stack. -*/ -static const char *generic_reader (lua_State *L, void *ud, size_t *size) { - (void)(ud); /* not used */ - luaL_checkstack(L, 2, "too many nested functions"); - lua_pushvalue(L, 1); /* get function */ - lua_call(L, 0, 1); /* call it */ - if (lua_isnil(L, -1)) { - lua_pop(L, 1); /* pop result */ - *size = 0; - return NULL; - } - else if (!lua_isstring(L, -1)) - luaL_error(L, "reader function must return a string"); - lua_replace(L, RESERVEDSLOT); /* save string in reserved slot */ - return lua_tolstring(L, RESERVEDSLOT, size); -} - - -static int luaB_load (lua_State *L) { - int status; - size_t l; - const char *s = lua_tolstring(L, 1, &l); - const char *mode = luaL_optstring(L, 3, "bt"); - int env = (!lua_isnone(L, 4) ? 4 : 0); /* 'env' index or 0 if no 'env' */ - if (s != NULL) { /* loading a string? */ - const char *chunkname = luaL_optstring(L, 2, s); - status = luaL_loadbufferx(L, s, l, chunkname, mode); - } - else { /* loading from a reader function */ - const char *chunkname = luaL_optstring(L, 2, "=(load)"); - luaL_checktype(L, 1, LUA_TFUNCTION); - lua_settop(L, RESERVEDSLOT); /* create reserved slot */ - status = lua_load(L, generic_reader, NULL, chunkname, mode); - } - return load_aux(L, status, env); -} - -/* }====================================================== */ - - -static int dofilecont (lua_State *L) { - return lua_gettop(L) - 1; -} - - -static int luaB_dofile (lua_State *L) { - const char *fname = luaL_optstring(L, 1, NULL); - lua_settop(L, 1); - if (luaL_loadfile(L, fname) != LUA_OK) - return lua_error(L); - lua_callk(L, 0, LUA_MULTRET, 0, dofilecont); - return dofilecont(L); -} - - -static int luaB_assert (lua_State *L) { - if (!lua_toboolean(L, 1)) - return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!")); - return lua_gettop(L); -} - - -static int luaB_select (lua_State *L) { - int n = lua_gettop(L); - if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') { - lua_pushinteger(L, n-1); - return 1; - } - else { - int i = luaL_checkint(L, 1); - if (i < 0) i = n + i; - else if (i > n) i = n; - luaL_argcheck(L, 1 <= i, 1, "index out of range"); - return n - i; - } -} - - -static int finishpcall (lua_State *L, int status) { - if (!lua_checkstack(L, 1)) { /* no space for extra boolean? */ - lua_settop(L, 0); /* create space for return values */ - lua_pushboolean(L, 0); - lua_pushstring(L, "stack overflow"); - return 2; /* return false, msg */ - } - lua_pushboolean(L, status); /* first result (status) */ - lua_replace(L, 1); /* put first result in first slot */ - return lua_gettop(L); -} - - -static int pcallcont (lua_State *L) { - int status = lua_getctx(L, NULL); - return finishpcall(L, (status == LUA_YIELD)); -} - - -static int luaB_pcall (lua_State *L) { - int status; - luaL_checkany(L, 1); - lua_pushnil(L); - lua_insert(L, 1); /* create space for status result */ - status = lua_pcallk(L, lua_gettop(L) - 2, LUA_MULTRET, 0, 0, pcallcont); - return finishpcall(L, (status == LUA_OK)); -} - - -static int luaB_xpcall (lua_State *L) { - int status; - int n = lua_gettop(L); - luaL_argcheck(L, n >= 2, 2, "value expected"); - lua_pushvalue(L, 1); /* exchange function... */ - lua_copy(L, 2, 1); /* ...and error handler */ - lua_replace(L, 2); - status = lua_pcallk(L, n - 2, LUA_MULTRET, 1, 0, pcallcont); - return finishpcall(L, (status == LUA_OK)); -} - - -static int luaB_tostring (lua_State *L) { - luaL_checkany(L, 1); - luaL_tolstring(L, 1, NULL); - return 1; -} - - -static const luaL_Reg base_funcs[] = { - {"assert", luaB_assert}, - {"collectgarbage", luaB_collectgarbage}, - {"dofile", luaB_dofile}, - {"error", luaB_error}, - {"getmetatable", luaB_getmetatable}, - {"ipairs", luaB_ipairs}, - {"loadfile", luaB_loadfile}, - {"load", luaB_load}, -#if defined(LUA_COMPAT_LOADSTRING) - {"loadstring", luaB_load}, -#endif - {"next", luaB_next}, - {"pairs", luaB_pairs}, - {"pcall", luaB_pcall}, - {"print", luaB_print}, - {"rawequal", luaB_rawequal}, - {"rawlen", luaB_rawlen}, - {"rawget", luaB_rawget}, - {"rawset", luaB_rawset}, - {"select", luaB_select}, - {"setmetatable", luaB_setmetatable}, - {"tonumber", luaB_tonumber}, - {"tostring", luaB_tostring}, - {"type", luaB_type}, - {"xpcall", luaB_xpcall}, - {NULL, NULL} -}; - - -LUAMOD_API int luaopen_base (lua_State *L) { - /* set global _G */ - lua_pushglobaltable(L); - lua_pushglobaltable(L); - lua_setfield(L, -2, "_G"); - /* open lib into global table */ - luaL_setfuncs(L, base_funcs, 0); - lua_pushliteral(L, LUA_VERSION); - lua_setfield(L, -2, "_VERSION"); /* set global _VERSION */ - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lbitlib.c b/Build/source/libs/lua52/lua52-src/src/lbitlib.c deleted file mode 100644 index 31c7b66f129..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lbitlib.c +++ /dev/null @@ -1,212 +0,0 @@ -/* -** $Id: lbitlib.c,v 1.18.1.2 2013/07/09 18:01:41 roberto Exp $ -** Standard library for bitwise operations -** See Copyright Notice in lua.h -*/ - -#define lbitlib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -/* number of bits to consider in a number */ -#if !defined(LUA_NBITS) -#define LUA_NBITS 32 -#endif - - -#define ALLONES (~(((~(lua_Unsigned)0) << (LUA_NBITS - 1)) << 1)) - -/* macro to trim extra bits */ -#define trim(x) ((x) & ALLONES) - - -/* builds a number with 'n' ones (1 <= n <= LUA_NBITS) */ -#define mask(n) (~((ALLONES << 1) << ((n) - 1))) - - -typedef lua_Unsigned b_uint; - - - -static b_uint andaux (lua_State *L) { - int i, n = lua_gettop(L); - b_uint r = ~(b_uint)0; - for (i = 1; i <= n; i++) - r &= luaL_checkunsigned(L, i); - return trim(r); -} - - -static int b_and (lua_State *L) { - b_uint r = andaux(L); - lua_pushunsigned(L, r); - return 1; -} - - -static int b_test (lua_State *L) { - b_uint r = andaux(L); - lua_pushboolean(L, r != 0); - return 1; -} - - -static int b_or (lua_State *L) { - int i, n = lua_gettop(L); - b_uint r = 0; - for (i = 1; i <= n; i++) - r |= luaL_checkunsigned(L, i); - lua_pushunsigned(L, trim(r)); - return 1; -} - - -static int b_xor (lua_State *L) { - int i, n = lua_gettop(L); - b_uint r = 0; - for (i = 1; i <= n; i++) - r ^= luaL_checkunsigned(L, i); - lua_pushunsigned(L, trim(r)); - return 1; -} - - -static int b_not (lua_State *L) { - b_uint r = ~luaL_checkunsigned(L, 1); - lua_pushunsigned(L, trim(r)); - return 1; -} - - -static int b_shift (lua_State *L, b_uint r, int i) { - if (i < 0) { /* shift right? */ - i = -i; - r = trim(r); - if (i >= LUA_NBITS) r = 0; - else r >>= i; - } - else { /* shift left */ - if (i >= LUA_NBITS) r = 0; - else r <<= i; - r = trim(r); - } - lua_pushunsigned(L, r); - return 1; -} - - -static int b_lshift (lua_State *L) { - return b_shift(L, luaL_checkunsigned(L, 1), luaL_checkint(L, 2)); -} - - -static int b_rshift (lua_State *L) { - return b_shift(L, luaL_checkunsigned(L, 1), -luaL_checkint(L, 2)); -} - - -static int b_arshift (lua_State *L) { - b_uint r = luaL_checkunsigned(L, 1); - int i = luaL_checkint(L, 2); - if (i < 0 || !(r & ((b_uint)1 << (LUA_NBITS - 1)))) - return b_shift(L, r, -i); - else { /* arithmetic shift for 'negative' number */ - if (i >= LUA_NBITS) r = ALLONES; - else - r = trim((r >> i) | ~(~(b_uint)0 >> i)); /* add signal bit */ - lua_pushunsigned(L, r); - return 1; - } -} - - -static int b_rot (lua_State *L, int i) { - b_uint r = luaL_checkunsigned(L, 1); - i &= (LUA_NBITS - 1); /* i = i % NBITS */ - r = trim(r); - if (i != 0) /* avoid undefined shift of LUA_NBITS when i == 0 */ - r = (r << i) | (r >> (LUA_NBITS - i)); - lua_pushunsigned(L, trim(r)); - return 1; -} - - -static int b_lrot (lua_State *L) { - return b_rot(L, luaL_checkint(L, 2)); -} - - -static int b_rrot (lua_State *L) { - return b_rot(L, -luaL_checkint(L, 2)); -} - - -/* -** get field and width arguments for field-manipulation functions, -** checking whether they are valid. -** ('luaL_error' called without 'return' to avoid later warnings about -** 'width' being used uninitialized.) -*/ -static int fieldargs (lua_State *L, int farg, int *width) { - int f = luaL_checkint(L, farg); - int w = luaL_optint(L, farg + 1, 1); - luaL_argcheck(L, 0 <= f, farg, "field cannot be negative"); - luaL_argcheck(L, 0 < w, farg + 1, "width must be positive"); - if (f + w > LUA_NBITS) - luaL_error(L, "trying to access non-existent bits"); - *width = w; - return f; -} - - -static int b_extract (lua_State *L) { - int w; - b_uint r = luaL_checkunsigned(L, 1); - int f = fieldargs(L, 2, &w); - r = (r >> f) & mask(w); - lua_pushunsigned(L, r); - return 1; -} - - -static int b_replace (lua_State *L) { - int w; - b_uint r = luaL_checkunsigned(L, 1); - b_uint v = luaL_checkunsigned(L, 2); - int f = fieldargs(L, 3, &w); - int m = mask(w); - v &= m; /* erase bits outside given width */ - r = (r & ~(m << f)) | (v << f); - lua_pushunsigned(L, r); - return 1; -} - - -static const luaL_Reg bitlib[] = { - {"arshift", b_arshift}, - {"band", b_and}, - {"bnot", b_not}, - {"bor", b_or}, - {"bxor", b_xor}, - {"btest", b_test}, - {"extract", b_extract}, - {"lrotate", b_lrot}, - {"lshift", b_lshift}, - {"replace", b_replace}, - {"rrotate", b_rrot}, - {"rshift", b_rshift}, - {NULL, NULL} -}; - - - -LUAMOD_API int luaopen_bit32 (lua_State *L) { - luaL_newlib(L, bitlib); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lcode.c b/Build/source/libs/lua52/lua52-src/src/lcode.c deleted file mode 100644 index 820b95c0e18..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lcode.c +++ /dev/null @@ -1,881 +0,0 @@ -/* -** $Id: lcode.c,v 2.62.1.1 2013/04/12 18:48:47 roberto Exp $ -** Code generator for Lua -** See Copyright Notice in lua.h -*/ - - -#include <stdlib.h> - -#define lcode_c -#define LUA_CORE - -#include "lua.h" - -#include "lcode.h" -#include "ldebug.h" -#include "ldo.h" -#include "lgc.h" -#include "llex.h" -#include "lmem.h" -#include "lobject.h" -#include "lopcodes.h" -#include "lparser.h" -#include "lstring.h" -#include "ltable.h" -#include "lvm.h" - - -#define hasjumps(e) ((e)->t != (e)->f) - - -static int isnumeral(expdesc *e) { - return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP); -} - - -void luaK_nil (FuncState *fs, int from, int n) { - Instruction *previous; - int l = from + n - 1; /* last register to set nil */ - if (fs->pc > fs->lasttarget) { /* no jumps to current position? */ - previous = &fs->f->code[fs->pc-1]; - if (GET_OPCODE(*previous) == OP_LOADNIL) { - int pfrom = GETARG_A(*previous); - int pl = pfrom + GETARG_B(*previous); - if ((pfrom <= from && from <= pl + 1) || - (from <= pfrom && pfrom <= l + 1)) { /* can connect both? */ - if (pfrom < from) from = pfrom; /* from = min(from, pfrom) */ - if (pl > l) l = pl; /* l = max(l, pl) */ - SETARG_A(*previous, from); - SETARG_B(*previous, l - from); - return; - } - } /* else go through */ - } - luaK_codeABC(fs, OP_LOADNIL, from, n - 1, 0); /* else no optimization */ -} - - -int luaK_jump (FuncState *fs) { - int jpc = fs->jpc; /* save list of jumps to here */ - int j; - fs->jpc = NO_JUMP; - j = luaK_codeAsBx(fs, OP_JMP, 0, NO_JUMP); - luaK_concat(fs, &j, jpc); /* keep them on hold */ - return j; -} - - -void luaK_ret (FuncState *fs, int first, int nret) { - luaK_codeABC(fs, OP_RETURN, first, nret+1, 0); -} - - -static int condjump (FuncState *fs, OpCode op, int A, int B, int C) { - luaK_codeABC(fs, op, A, B, C); - return luaK_jump(fs); -} - - -static void fixjump (FuncState *fs, int pc, int dest) { - Instruction *jmp = &fs->f->code[pc]; - int offset = dest-(pc+1); - lua_assert(dest != NO_JUMP); - if (abs(offset) > MAXARG_sBx) - luaX_syntaxerror(fs->ls, "control structure too long"); - SETARG_sBx(*jmp, offset); -} - - -/* -** returns current `pc' and marks it as a jump target (to avoid wrong -** optimizations with consecutive instructions not in the same basic block). -*/ -int luaK_getlabel (FuncState *fs) { - fs->lasttarget = fs->pc; - return fs->pc; -} - - -static int getjump (FuncState *fs, int pc) { - int offset = GETARG_sBx(fs->f->code[pc]); - if (offset == NO_JUMP) /* point to itself represents end of list */ - return NO_JUMP; /* end of list */ - else - return (pc+1)+offset; /* turn offset into absolute position */ -} - - -static Instruction *getjumpcontrol (FuncState *fs, int pc) { - Instruction *pi = &fs->f->code[pc]; - if (pc >= 1 && testTMode(GET_OPCODE(*(pi-1)))) - return pi-1; - else - return pi; -} - - -/* -** check whether list has any jump that do not produce a value -** (or produce an inverted value) -*/ -static int need_value (FuncState *fs, int list) { - for (; list != NO_JUMP; list = getjump(fs, list)) { - Instruction i = *getjumpcontrol(fs, list); - if (GET_OPCODE(i) != OP_TESTSET) return 1; - } - return 0; /* not found */ -} - - -static int patchtestreg (FuncState *fs, int node, int reg) { - Instruction *i = getjumpcontrol(fs, node); - if (GET_OPCODE(*i) != OP_TESTSET) - return 0; /* cannot patch other instructions */ - if (reg != NO_REG && reg != GETARG_B(*i)) - SETARG_A(*i, reg); - else /* no register to put value or register already has the value */ - *i = CREATE_ABC(OP_TEST, GETARG_B(*i), 0, GETARG_C(*i)); - - return 1; -} - - -static void removevalues (FuncState *fs, int list) { - for (; list != NO_JUMP; list = getjump(fs, list)) - patchtestreg(fs, list, NO_REG); -} - - -static void patchlistaux (FuncState *fs, int list, int vtarget, int reg, - int dtarget) { - while (list != NO_JUMP) { - int next = getjump(fs, list); - if (patchtestreg(fs, list, reg)) - fixjump(fs, list, vtarget); - else - fixjump(fs, list, dtarget); /* jump to default target */ - list = next; - } -} - - -static void dischargejpc (FuncState *fs) { - patchlistaux(fs, fs->jpc, fs->pc, NO_REG, fs->pc); - fs->jpc = NO_JUMP; -} - - -void luaK_patchlist (FuncState *fs, int list, int target) { - if (target == fs->pc) - luaK_patchtohere(fs, list); - else { - lua_assert(target < fs->pc); - patchlistaux(fs, list, target, NO_REG, target); - } -} - - -LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level) { - level++; /* argument is +1 to reserve 0 as non-op */ - while (list != NO_JUMP) { - int next = getjump(fs, list); - lua_assert(GET_OPCODE(fs->f->code[list]) == OP_JMP && - (GETARG_A(fs->f->code[list]) == 0 || - GETARG_A(fs->f->code[list]) >= level)); - SETARG_A(fs->f->code[list], level); - list = next; - } -} - - -void luaK_patchtohere (FuncState *fs, int list) { - luaK_getlabel(fs); - luaK_concat(fs, &fs->jpc, list); -} - - -void luaK_concat (FuncState *fs, int *l1, int l2) { - if (l2 == NO_JUMP) return; - else if (*l1 == NO_JUMP) - *l1 = l2; - else { - int list = *l1; - int next; - while ((next = getjump(fs, list)) != NO_JUMP) /* find last element */ - list = next; - fixjump(fs, list, l2); - } -} - - -static int luaK_code (FuncState *fs, Instruction i) { - Proto *f = fs->f; - dischargejpc(fs); /* `pc' will change */ - /* put new instruction in code array */ - luaM_growvector(fs->ls->L, f->code, fs->pc, f->sizecode, Instruction, - MAX_INT, "opcodes"); - f->code[fs->pc] = i; - /* save corresponding line information */ - luaM_growvector(fs->ls->L, f->lineinfo, fs->pc, f->sizelineinfo, int, - MAX_INT, "opcodes"); - f->lineinfo[fs->pc] = fs->ls->lastline; - return fs->pc++; -} - - -int luaK_codeABC (FuncState *fs, OpCode o, int a, int b, int c) { - lua_assert(getOpMode(o) == iABC); - lua_assert(getBMode(o) != OpArgN || b == 0); - lua_assert(getCMode(o) != OpArgN || c == 0); - lua_assert(a <= MAXARG_A && b <= MAXARG_B && c <= MAXARG_C); - return luaK_code(fs, CREATE_ABC(o, a, b, c)); -} - - -int luaK_codeABx (FuncState *fs, OpCode o, int a, unsigned int bc) { - lua_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx); - lua_assert(getCMode(o) == OpArgN); - lua_assert(a <= MAXARG_A && bc <= MAXARG_Bx); - return luaK_code(fs, CREATE_ABx(o, a, bc)); -} - - -static int codeextraarg (FuncState *fs, int a) { - lua_assert(a <= MAXARG_Ax); - return luaK_code(fs, CREATE_Ax(OP_EXTRAARG, a)); -} - - -int luaK_codek (FuncState *fs, int reg, int k) { - if (k <= MAXARG_Bx) - return luaK_codeABx(fs, OP_LOADK, reg, k); - else { - int p = luaK_codeABx(fs, OP_LOADKX, reg, 0); - codeextraarg(fs, k); - return p; - } -} - - -void luaK_checkstack (FuncState *fs, int n) { - int newstack = fs->freereg + n; - if (newstack > fs->f->maxstacksize) { - if (newstack >= MAXSTACK) - luaX_syntaxerror(fs->ls, "function or expression too complex"); - fs->f->maxstacksize = cast_byte(newstack); - } -} - - -void luaK_reserveregs (FuncState *fs, int n) { - luaK_checkstack(fs, n); - fs->freereg += n; -} - - -static void freereg (FuncState *fs, int reg) { - if (!ISK(reg) && reg >= fs->nactvar) { - fs->freereg--; - lua_assert(reg == fs->freereg); - } -} - - -static void freeexp (FuncState *fs, expdesc *e) { - if (e->k == VNONRELOC) - freereg(fs, e->u.info); -} - - -static int addk (FuncState *fs, TValue *key, TValue *v) { - lua_State *L = fs->ls->L; - TValue *idx = luaH_set(L, fs->h, key); - Proto *f = fs->f; - int k, oldsize; - if (ttisnumber(idx)) { - lua_Number n = nvalue(idx); - lua_number2int(k, n); - if (luaV_rawequalobj(&f->k[k], v)) - return k; - /* else may be a collision (e.g., between 0.0 and "\0\0\0\0\0\0\0\0"); - go through and create a new entry for this value */ - } - /* constant not found; create a new entry */ - oldsize = f->sizek; - k = fs->nk; - /* numerical value does not need GC barrier; - table has no metatable, so it does not need to invalidate cache */ - setnvalue(idx, cast_num(k)); - luaM_growvector(L, f->k, k, f->sizek, TValue, MAXARG_Ax, "constants"); - while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]); - setobj(L, &f->k[k], v); - fs->nk++; - luaC_barrier(L, f, v); - return k; -} - - -int luaK_stringK (FuncState *fs, TString *s) { - TValue o; - setsvalue(fs->ls->L, &o, s); - return addk(fs, &o, &o); -} - - -int luaK_numberK (FuncState *fs, lua_Number r) { - int n; - lua_State *L = fs->ls->L; - TValue o; - setnvalue(&o, r); - if (r == 0 || luai_numisnan(NULL, r)) { /* handle -0 and NaN */ - /* use raw representation as key to avoid numeric problems */ - setsvalue(L, L->top++, luaS_newlstr(L, (char *)&r, sizeof(r))); - n = addk(fs, L->top - 1, &o); - L->top--; - } - else - n = addk(fs, &o, &o); /* regular case */ - return n; -} - - -static int boolK (FuncState *fs, int b) { - TValue o; - setbvalue(&o, b); - return addk(fs, &o, &o); -} - - -static int nilK (FuncState *fs) { - TValue k, v; - setnilvalue(&v); - /* cannot use nil as key; instead use table itself to represent nil */ - sethvalue(fs->ls->L, &k, fs->h); - return addk(fs, &k, &v); -} - - -void luaK_setreturns (FuncState *fs, expdesc *e, int nresults) { - if (e->k == VCALL) { /* expression is an open function call? */ - SETARG_C(getcode(fs, e), nresults+1); - } - else if (e->k == VVARARG) { - SETARG_B(getcode(fs, e), nresults+1); - SETARG_A(getcode(fs, e), fs->freereg); - luaK_reserveregs(fs, 1); - } -} - - -void luaK_setoneret (FuncState *fs, expdesc *e) { - if (e->k == VCALL) { /* expression is an open function call? */ - e->k = VNONRELOC; - e->u.info = GETARG_A(getcode(fs, e)); - } - else if (e->k == VVARARG) { - SETARG_B(getcode(fs, e), 2); - e->k = VRELOCABLE; /* can relocate its simple result */ - } -} - - -void luaK_dischargevars (FuncState *fs, expdesc *e) { - switch (e->k) { - case VLOCAL: { - e->k = VNONRELOC; - break; - } - case VUPVAL: { - e->u.info = luaK_codeABC(fs, OP_GETUPVAL, 0, e->u.info, 0); - e->k = VRELOCABLE; - break; - } - case VINDEXED: { - OpCode op = OP_GETTABUP; /* assume 't' is in an upvalue */ - freereg(fs, e->u.ind.idx); - if (e->u.ind.vt == VLOCAL) { /* 't' is in a register? */ - freereg(fs, e->u.ind.t); - op = OP_GETTABLE; - } - e->u.info = luaK_codeABC(fs, op, 0, e->u.ind.t, e->u.ind.idx); - e->k = VRELOCABLE; - break; - } - case VVARARG: - case VCALL: { - luaK_setoneret(fs, e); - break; - } - default: break; /* there is one value available (somewhere) */ - } -} - - -static int code_label (FuncState *fs, int A, int b, int jump) { - luaK_getlabel(fs); /* those instructions may be jump targets */ - return luaK_codeABC(fs, OP_LOADBOOL, A, b, jump); -} - - -static void discharge2reg (FuncState *fs, expdesc *e, int reg) { - luaK_dischargevars(fs, e); - switch (e->k) { - case VNIL: { - luaK_nil(fs, reg, 1); - break; - } - case VFALSE: case VTRUE: { - luaK_codeABC(fs, OP_LOADBOOL, reg, e->k == VTRUE, 0); - break; - } - case VK: { - luaK_codek(fs, reg, e->u.info); - break; - } - case VKNUM: { - luaK_codek(fs, reg, luaK_numberK(fs, e->u.nval)); - break; - } - case VRELOCABLE: { - Instruction *pc = &getcode(fs, e); - SETARG_A(*pc, reg); - break; - } - case VNONRELOC: { - if (reg != e->u.info) - luaK_codeABC(fs, OP_MOVE, reg, e->u.info, 0); - break; - } - default: { - lua_assert(e->k == VVOID || e->k == VJMP); - return; /* nothing to do... */ - } - } - e->u.info = reg; - e->k = VNONRELOC; -} - - -static void discharge2anyreg (FuncState *fs, expdesc *e) { - if (e->k != VNONRELOC) { - luaK_reserveregs(fs, 1); - discharge2reg(fs, e, fs->freereg-1); - } -} - - -static void exp2reg (FuncState *fs, expdesc *e, int reg) { - discharge2reg(fs, e, reg); - if (e->k == VJMP) - luaK_concat(fs, &e->t, e->u.info); /* put this jump in `t' list */ - if (hasjumps(e)) { - int final; /* position after whole expression */ - int p_f = NO_JUMP; /* position of an eventual LOAD false */ - int p_t = NO_JUMP; /* position of an eventual LOAD true */ - if (need_value(fs, e->t) || need_value(fs, e->f)) { - int fj = (e->k == VJMP) ? NO_JUMP : luaK_jump(fs); - p_f = code_label(fs, reg, 0, 1); - p_t = code_label(fs, reg, 1, 0); - luaK_patchtohere(fs, fj); - } - final = luaK_getlabel(fs); - patchlistaux(fs, e->f, final, reg, p_f); - patchlistaux(fs, e->t, final, reg, p_t); - } - e->f = e->t = NO_JUMP; - e->u.info = reg; - e->k = VNONRELOC; -} - - -void luaK_exp2nextreg (FuncState *fs, expdesc *e) { - luaK_dischargevars(fs, e); - freeexp(fs, e); - luaK_reserveregs(fs, 1); - exp2reg(fs, e, fs->freereg - 1); -} - - -int luaK_exp2anyreg (FuncState *fs, expdesc *e) { - luaK_dischargevars(fs, e); - if (e->k == VNONRELOC) { - if (!hasjumps(e)) return e->u.info; /* exp is already in a register */ - if (e->u.info >= fs->nactvar) { /* reg. is not a local? */ - exp2reg(fs, e, e->u.info); /* put value on it */ - return e->u.info; - } - } - luaK_exp2nextreg(fs, e); /* default */ - return e->u.info; -} - - -void luaK_exp2anyregup (FuncState *fs, expdesc *e) { - if (e->k != VUPVAL || hasjumps(e)) - luaK_exp2anyreg(fs, e); -} - - -void luaK_exp2val (FuncState *fs, expdesc *e) { - if (hasjumps(e)) - luaK_exp2anyreg(fs, e); - else - luaK_dischargevars(fs, e); -} - - -int luaK_exp2RK (FuncState *fs, expdesc *e) { - luaK_exp2val(fs, e); - switch (e->k) { - case VTRUE: - case VFALSE: - case VNIL: { - if (fs->nk <= MAXINDEXRK) { /* constant fits in RK operand? */ - e->u.info = (e->k == VNIL) ? nilK(fs) : boolK(fs, (e->k == VTRUE)); - e->k = VK; - return RKASK(e->u.info); - } - else break; - } - case VKNUM: { - e->u.info = luaK_numberK(fs, e->u.nval); - e->k = VK; - /* go through */ - } - case VK: { - if (e->u.info <= MAXINDEXRK) /* constant fits in argC? */ - return RKASK(e->u.info); - else break; - } - default: break; - } - /* not a constant in the right range: put it in a register */ - return luaK_exp2anyreg(fs, e); -} - - -void luaK_storevar (FuncState *fs, expdesc *var, expdesc *ex) { - switch (var->k) { - case VLOCAL: { - freeexp(fs, ex); - exp2reg(fs, ex, var->u.info); - return; - } - case VUPVAL: { - int e = luaK_exp2anyreg(fs, ex); - luaK_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0); - break; - } - case VINDEXED: { - OpCode op = (var->u.ind.vt == VLOCAL) ? OP_SETTABLE : OP_SETTABUP; - int e = luaK_exp2RK(fs, ex); - luaK_codeABC(fs, op, var->u.ind.t, var->u.ind.idx, e); - break; - } - default: { - lua_assert(0); /* invalid var kind to store */ - break; - } - } - freeexp(fs, ex); -} - - -void luaK_self (FuncState *fs, expdesc *e, expdesc *key) { - int ereg; - luaK_exp2anyreg(fs, e); - ereg = e->u.info; /* register where 'e' was placed */ - freeexp(fs, e); - e->u.info = fs->freereg; /* base register for op_self */ - e->k = VNONRELOC; - luaK_reserveregs(fs, 2); /* function and 'self' produced by op_self */ - luaK_codeABC(fs, OP_SELF, e->u.info, ereg, luaK_exp2RK(fs, key)); - freeexp(fs, key); -} - - -static void invertjump (FuncState *fs, expdesc *e) { - Instruction *pc = getjumpcontrol(fs, e->u.info); - lua_assert(testTMode(GET_OPCODE(*pc)) && GET_OPCODE(*pc) != OP_TESTSET && - GET_OPCODE(*pc) != OP_TEST); - SETARG_A(*pc, !(GETARG_A(*pc))); -} - - -static int jumponcond (FuncState *fs, expdesc *e, int cond) { - if (e->k == VRELOCABLE) { - Instruction ie = getcode(fs, e); - if (GET_OPCODE(ie) == OP_NOT) { - fs->pc--; /* remove previous OP_NOT */ - return condjump(fs, OP_TEST, GETARG_B(ie), 0, !cond); - } - /* else go through */ - } - discharge2anyreg(fs, e); - freeexp(fs, e); - return condjump(fs, OP_TESTSET, NO_REG, e->u.info, cond); -} - - -void luaK_goiftrue (FuncState *fs, expdesc *e) { - int pc; /* pc of last jump */ - luaK_dischargevars(fs, e); - switch (e->k) { - case VJMP: { - invertjump(fs, e); - pc = e->u.info; - break; - } - case VK: case VKNUM: case VTRUE: { - pc = NO_JUMP; /* always true; do nothing */ - break; - } - default: { - pc = jumponcond(fs, e, 0); - break; - } - } - luaK_concat(fs, &e->f, pc); /* insert last jump in `f' list */ - luaK_patchtohere(fs, e->t); - e->t = NO_JUMP; -} - - -void luaK_goiffalse (FuncState *fs, expdesc *e) { - int pc; /* pc of last jump */ - luaK_dischargevars(fs, e); - switch (e->k) { - case VJMP: { - pc = e->u.info; - break; - } - case VNIL: case VFALSE: { - pc = NO_JUMP; /* always false; do nothing */ - break; - } - default: { - pc = jumponcond(fs, e, 1); - break; - } - } - luaK_concat(fs, &e->t, pc); /* insert last jump in `t' list */ - luaK_patchtohere(fs, e->f); - e->f = NO_JUMP; -} - - -static void codenot (FuncState *fs, expdesc *e) { - luaK_dischargevars(fs, e); - switch (e->k) { - case VNIL: case VFALSE: { - e->k = VTRUE; - break; - } - case VK: case VKNUM: case VTRUE: { - e->k = VFALSE; - break; - } - case VJMP: { - invertjump(fs, e); - break; - } - case VRELOCABLE: - case VNONRELOC: { - discharge2anyreg(fs, e); - freeexp(fs, e); - e->u.info = luaK_codeABC(fs, OP_NOT, 0, e->u.info, 0); - e->k = VRELOCABLE; - break; - } - default: { - lua_assert(0); /* cannot happen */ - break; - } - } - /* interchange true and false lists */ - { int temp = e->f; e->f = e->t; e->t = temp; } - removevalues(fs, e->f); - removevalues(fs, e->t); -} - - -void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k) { - lua_assert(!hasjumps(t)); - t->u.ind.t = t->u.info; - t->u.ind.idx = luaK_exp2RK(fs, k); - t->u.ind.vt = (t->k == VUPVAL) ? VUPVAL - : check_exp(vkisinreg(t->k), VLOCAL); - t->k = VINDEXED; -} - - -static int constfolding (OpCode op, expdesc *e1, expdesc *e2) { - lua_Number r; - if (!isnumeral(e1) || !isnumeral(e2)) return 0; - if ((op == OP_DIV || op == OP_MOD) && e2->u.nval == 0) - return 0; /* do not attempt to divide by 0 */ - r = luaO_arith(op - OP_ADD + LUA_OPADD, e1->u.nval, e2->u.nval); - e1->u.nval = r; - return 1; -} - - -static void codearith (FuncState *fs, OpCode op, - expdesc *e1, expdesc *e2, int line) { - if (constfolding(op, e1, e2)) - return; - else { - int o2 = (op != OP_UNM && op != OP_LEN) ? luaK_exp2RK(fs, e2) : 0; - int o1 = luaK_exp2RK(fs, e1); - if (o1 > o2) { - freeexp(fs, e1); - freeexp(fs, e2); - } - else { - freeexp(fs, e2); - freeexp(fs, e1); - } - e1->u.info = luaK_codeABC(fs, op, 0, o1, o2); - e1->k = VRELOCABLE; - luaK_fixline(fs, line); - } -} - - -static void codecomp (FuncState *fs, OpCode op, int cond, expdesc *e1, - expdesc *e2) { - int o1 = luaK_exp2RK(fs, e1); - int o2 = luaK_exp2RK(fs, e2); - freeexp(fs, e2); - freeexp(fs, e1); - if (cond == 0 && op != OP_EQ) { - int temp; /* exchange args to replace by `<' or `<=' */ - temp = o1; o1 = o2; o2 = temp; /* o1 <==> o2 */ - cond = 1; - } - e1->u.info = condjump(fs, op, cond, o1, o2); - e1->k = VJMP; -} - - -void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e, int line) { - expdesc e2; - e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0; - switch (op) { - case OPR_MINUS: { - if (isnumeral(e)) /* minus constant? */ - e->u.nval = luai_numunm(NULL, e->u.nval); /* fold it */ - else { - luaK_exp2anyreg(fs, e); - codearith(fs, OP_UNM, e, &e2, line); - } - break; - } - case OPR_NOT: codenot(fs, e); break; - case OPR_LEN: { - luaK_exp2anyreg(fs, e); /* cannot operate on constants */ - codearith(fs, OP_LEN, e, &e2, line); - break; - } - default: lua_assert(0); - } -} - - -void luaK_infix (FuncState *fs, BinOpr op, expdesc *v) { - switch (op) { - case OPR_AND: { - luaK_goiftrue(fs, v); - break; - } - case OPR_OR: { - luaK_goiffalse(fs, v); - break; - } - case OPR_CONCAT: { - luaK_exp2nextreg(fs, v); /* operand must be on the `stack' */ - break; - } - case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV: - case OPR_MOD: case OPR_POW: { - if (!isnumeral(v)) luaK_exp2RK(fs, v); - break; - } - default: { - luaK_exp2RK(fs, v); - break; - } - } -} - - -void luaK_posfix (FuncState *fs, BinOpr op, - expdesc *e1, expdesc *e2, int line) { - switch (op) { - case OPR_AND: { - lua_assert(e1->t == NO_JUMP); /* list must be closed */ - luaK_dischargevars(fs, e2); - luaK_concat(fs, &e2->f, e1->f); - *e1 = *e2; - break; - } - case OPR_OR: { - lua_assert(e1->f == NO_JUMP); /* list must be closed */ - luaK_dischargevars(fs, e2); - luaK_concat(fs, &e2->t, e1->t); - *e1 = *e2; - break; - } - case OPR_CONCAT: { - luaK_exp2val(fs, e2); - if (e2->k == VRELOCABLE && GET_OPCODE(getcode(fs, e2)) == OP_CONCAT) { - lua_assert(e1->u.info == GETARG_B(getcode(fs, e2))-1); - freeexp(fs, e1); - SETARG_B(getcode(fs, e2), e1->u.info); - e1->k = VRELOCABLE; e1->u.info = e2->u.info; - } - else { - luaK_exp2nextreg(fs, e2); /* operand must be on the 'stack' */ - codearith(fs, OP_CONCAT, e1, e2, line); - } - break; - } - case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV: - case OPR_MOD: case OPR_POW: { - codearith(fs, cast(OpCode, op - OPR_ADD + OP_ADD), e1, e2, line); - break; - } - case OPR_EQ: case OPR_LT: case OPR_LE: { - codecomp(fs, cast(OpCode, op - OPR_EQ + OP_EQ), 1, e1, e2); - break; - } - case OPR_NE: case OPR_GT: case OPR_GE: { - codecomp(fs, cast(OpCode, op - OPR_NE + OP_EQ), 0, e1, e2); - break; - } - default: lua_assert(0); - } -} - - -void luaK_fixline (FuncState *fs, int line) { - fs->f->lineinfo[fs->pc - 1] = line; -} - - -void luaK_setlist (FuncState *fs, int base, int nelems, int tostore) { - int c = (nelems - 1)/LFIELDS_PER_FLUSH + 1; - int b = (tostore == LUA_MULTRET) ? 0 : tostore; - lua_assert(tostore != 0); - if (c <= MAXARG_C) - luaK_codeABC(fs, OP_SETLIST, base, b, c); - else if (c <= MAXARG_Ax) { - luaK_codeABC(fs, OP_SETLIST, base, b, 0); - codeextraarg(fs, c); - } - else - luaX_syntaxerror(fs->ls, "constructor too long"); - fs->freereg = base + 1; /* free registers with list values */ -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lcode.h b/Build/source/libs/lua52/lua52-src/src/lcode.h deleted file mode 100644 index 6a1424cf5a7..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lcode.h +++ /dev/null @@ -1,83 +0,0 @@ -/* -** $Id: lcode.h,v 1.58.1.1 2013/04/12 18:48:47 roberto Exp $ -** Code generator for Lua -** See Copyright Notice in lua.h -*/ - -#ifndef lcode_h -#define lcode_h - -#include "llex.h" -#include "lobject.h" -#include "lopcodes.h" -#include "lparser.h" - - -/* -** Marks the end of a patch list. It is an invalid value both as an absolute -** address, and as a list link (would link an element to itself). -*/ -#define NO_JUMP (-1) - - -/* -** grep "ORDER OPR" if you change these enums (ORDER OP) -*/ -typedef enum BinOpr { - OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW, - OPR_CONCAT, - OPR_EQ, OPR_LT, OPR_LE, - OPR_NE, OPR_GT, OPR_GE, - OPR_AND, OPR_OR, - OPR_NOBINOPR -} BinOpr; - - -typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr; - - -#define getcode(fs,e) ((fs)->f->code[(e)->u.info]) - -#define luaK_codeAsBx(fs,o,A,sBx) luaK_codeABx(fs,o,A,(sBx)+MAXARG_sBx) - -#define luaK_setmultret(fs,e) luaK_setreturns(fs, e, LUA_MULTRET) - -#define luaK_jumpto(fs,t) luaK_patchlist(fs, luaK_jump(fs), t) - -LUAI_FUNC int luaK_codeABx (FuncState *fs, OpCode o, int A, unsigned int Bx); -LUAI_FUNC int luaK_codeABC (FuncState *fs, OpCode o, int A, int B, int C); -LUAI_FUNC int luaK_codek (FuncState *fs, int reg, int k); -LUAI_FUNC void luaK_fixline (FuncState *fs, int line); -LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n); -LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n); -LUAI_FUNC void luaK_checkstack (FuncState *fs, int n); -LUAI_FUNC int luaK_stringK (FuncState *fs, TString *s); -LUAI_FUNC int luaK_numberK (FuncState *fs, lua_Number r); -LUAI_FUNC void luaK_dischargevars (FuncState *fs, expdesc *e); -LUAI_FUNC int luaK_exp2anyreg (FuncState *fs, expdesc *e); -LUAI_FUNC void luaK_exp2anyregup (FuncState *fs, expdesc *e); -LUAI_FUNC void luaK_exp2nextreg (FuncState *fs, expdesc *e); -LUAI_FUNC void luaK_exp2val (FuncState *fs, expdesc *e); -LUAI_FUNC int luaK_exp2RK (FuncState *fs, expdesc *e); -LUAI_FUNC void luaK_self (FuncState *fs, expdesc *e, expdesc *key); -LUAI_FUNC void luaK_indexed (FuncState *fs, expdesc *t, expdesc *k); -LUAI_FUNC void luaK_goiftrue (FuncState *fs, expdesc *e); -LUAI_FUNC void luaK_goiffalse (FuncState *fs, expdesc *e); -LUAI_FUNC void luaK_storevar (FuncState *fs, expdesc *var, expdesc *e); -LUAI_FUNC void luaK_setreturns (FuncState *fs, expdesc *e, int nresults); -LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e); -LUAI_FUNC int luaK_jump (FuncState *fs); -LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret); -LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target); -LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list); -LUAI_FUNC void luaK_patchclose (FuncState *fs, int list, int level); -LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2); -LUAI_FUNC int luaK_getlabel (FuncState *fs); -LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line); -LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v); -LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, - expdesc *v2, int line); -LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore); - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lcorolib.c b/Build/source/libs/lua52/lua52-src/src/lcorolib.c deleted file mode 100644 index ce4f6ad42c6..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lcorolib.c +++ /dev/null @@ -1,155 +0,0 @@ -/* -** $Id: lcorolib.c,v 1.5.1.1 2013/04/12 18:48:47 roberto Exp $ -** Coroutine Library -** See Copyright Notice in lua.h -*/ - - -#include <stdlib.h> - - -#define lcorolib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -static int auxresume (lua_State *L, lua_State *co, int narg) { - int status; - if (!lua_checkstack(co, narg)) { - lua_pushliteral(L, "too many arguments to resume"); - return -1; /* error flag */ - } - if (lua_status(co) == LUA_OK && lua_gettop(co) == 0) { - lua_pushliteral(L, "cannot resume dead coroutine"); - return -1; /* error flag */ - } - lua_xmove(L, co, narg); - status = lua_resume(co, L, narg); - if (status == LUA_OK || status == LUA_YIELD) { - int nres = lua_gettop(co); - if (!lua_checkstack(L, nres + 1)) { - lua_pop(co, nres); /* remove results anyway */ - lua_pushliteral(L, "too many results to resume"); - return -1; /* error flag */ - } - lua_xmove(co, L, nres); /* move yielded values */ - return nres; - } - else { - lua_xmove(co, L, 1); /* move error message */ - return -1; /* error flag */ - } -} - - -static int luaB_coresume (lua_State *L) { - lua_State *co = lua_tothread(L, 1); - int r; - luaL_argcheck(L, co, 1, "coroutine expected"); - r = auxresume(L, co, lua_gettop(L) - 1); - if (r < 0) { - lua_pushboolean(L, 0); - lua_insert(L, -2); - return 2; /* return false + error message */ - } - else { - lua_pushboolean(L, 1); - lua_insert(L, -(r + 1)); - return r + 1; /* return true + `resume' returns */ - } -} - - -static int luaB_auxwrap (lua_State *L) { - lua_State *co = lua_tothread(L, lua_upvalueindex(1)); - int r = auxresume(L, co, lua_gettop(L)); - if (r < 0) { - if (lua_isstring(L, -1)) { /* error object is a string? */ - luaL_where(L, 1); /* add extra info */ - lua_insert(L, -2); - lua_concat(L, 2); - } - return lua_error(L); /* propagate error */ - } - return r; -} - - -static int luaB_cocreate (lua_State *L) { - lua_State *NL; - luaL_checktype(L, 1, LUA_TFUNCTION); - NL = lua_newthread(L); - lua_pushvalue(L, 1); /* move function to top */ - lua_xmove(L, NL, 1); /* move function from L to NL */ - return 1; -} - - -static int luaB_cowrap (lua_State *L) { - luaB_cocreate(L); - lua_pushcclosure(L, luaB_auxwrap, 1); - return 1; -} - - -static int luaB_yield (lua_State *L) { - return lua_yield(L, lua_gettop(L)); -} - - -static int luaB_costatus (lua_State *L) { - lua_State *co = lua_tothread(L, 1); - luaL_argcheck(L, co, 1, "coroutine expected"); - if (L == co) lua_pushliteral(L, "running"); - else { - switch (lua_status(co)) { - case LUA_YIELD: - lua_pushliteral(L, "suspended"); - break; - case LUA_OK: { - lua_Debug ar; - if (lua_getstack(co, 0, &ar) > 0) /* does it have frames? */ - lua_pushliteral(L, "normal"); /* it is running */ - else if (lua_gettop(co) == 0) - lua_pushliteral(L, "dead"); - else - lua_pushliteral(L, "suspended"); /* initial state */ - break; - } - default: /* some error occurred */ - lua_pushliteral(L, "dead"); - break; - } - } - return 1; -} - - -static int luaB_corunning (lua_State *L) { - int ismain = lua_pushthread(L); - lua_pushboolean(L, ismain); - return 2; -} - - -static const luaL_Reg co_funcs[] = { - {"create", luaB_cocreate}, - {"resume", luaB_coresume}, - {"running", luaB_corunning}, - {"status", luaB_costatus}, - {"wrap", luaB_cowrap}, - {"yield", luaB_yield}, - {NULL, NULL} -}; - - - -LUAMOD_API int luaopen_coroutine (lua_State *L) { - luaL_newlib(L, co_funcs); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lctype.c b/Build/source/libs/lua52/lua52-src/src/lctype.c deleted file mode 100644 index 93f8cadc39d..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lctype.c +++ /dev/null @@ -1,52 +0,0 @@ -/* -** $Id: lctype.c,v 1.11.1.1 2013/04/12 18:48:47 roberto Exp $ -** 'ctype' functions for Lua -** See Copyright Notice in lua.h -*/ - -#define lctype_c -#define LUA_CORE - -#include "lctype.h" - -#if !LUA_USE_CTYPE /* { */ - -#include <limits.h> - -LUAI_DDEF const lu_byte luai_ctype_[UCHAR_MAX + 2] = { - 0x00, /* EOZ */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0. */ - 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x0c, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, /* 2. */ - 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, - 0x16, 0x16, 0x16, 0x16, 0x16, 0x16, 0x16, 0x16, /* 3. */ - 0x16, 0x16, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, - 0x04, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x05, /* 4. */ - 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, - 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, /* 5. */ - 0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x05, - 0x04, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x05, /* 6. */ - 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, - 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, /* 7. */ - 0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 8. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 9. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* a. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* d. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* e. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* f. */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -}; - -#endif /* } */ diff --git a/Build/source/libs/lua52/lua52-src/src/lctype.h b/Build/source/libs/lua52/lua52-src/src/lctype.h deleted file mode 100644 index a963eb9015f..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lctype.h +++ /dev/null @@ -1,99 +0,0 @@ -/* -** $Id: lctype.h,v 1.12.1.1 2013/04/12 18:48:47 roberto Exp $ -** 'ctype' functions for Lua -** See Copyright Notice in lua.h -*/ - -#ifndef lctype_h -#define lctype_h - -#include <ctype.h> - -#include "lua.h" - - -/* -** WARNING: the functions defined here do not necessarily correspond -** to the similar functions in the standard C ctype.h. They are -** optimized for the specific needs of Lua -*/ - -#if !defined(LUA_USE_CTYPE) - -#if 'A' == 65 && '0' == 48 -/* ASCII case: can use its own tables; faster and fixed */ -#define LUA_USE_CTYPE 0 -#else -/* must use standard C ctype */ -#define LUA_USE_CTYPE 1 -#endif - -#endif - - -#if !LUA_USE_CTYPE /* { */ - -#include <limits.h> - -#include "llimits.h" - - -#define ALPHABIT 0 -#define DIGITBIT 1 -#define PRINTBIT 2 -#define SPACEBIT 3 -#define XDIGITBIT 4 - - -#define MASK(B) (1 << (B)) - - -/* -** add 1 to char to allow index -1 (EOZ) -*/ -#define testprop(c,p) (luai_ctype_[(c)+1] & (p)) - -/* -** 'lalpha' (Lua alphabetic) and 'lalnum' (Lua alphanumeric) both include '_' -** -** all utf-8 chars (greater than 0x7f) are always alphabetic -*/ -#define lislalpha(c) (isalpha(c) || (c) == '_' || (c) > 0x7f) -#define lislalnum(c) (isalnum(c) || (c) == '_' || (c) > 0x7f) -#define lisdigit(c) testprop(c, MASK(DIGITBIT)) -#define lisspace(c) testprop(c, MASK(SPACEBIT)) -#define lisprint(c) testprop(c, MASK(PRINTBIT)) -#define lisxdigit(c) testprop(c, MASK(XDIGITBIT)) - -/* -** this 'ltolower' only works for alphabetic characters -*/ -#define ltolower(c) ((c) | ('A' ^ 'a')) - - -/* two more entries for 0 and -1 (EOZ) */ -LUAI_DDEC const lu_byte luai_ctype_[UCHAR_MAX + 2]; - - -#else /* }{ */ - -/* -** use standard C ctypes -*/ - -#include <ctype.h> - - -#define lislalpha(c) (isalpha(c) || (c) == '_') -#define lislalnum(c) (isalnum(c) || (c) == '_') -#define lisdigit(c) (isdigit(c)) -#define lisspace(c) (isspace(c)) -#define lisprint(c) (isprint(c)) -#define lisxdigit(c) (isxdigit(c)) - -#define ltolower(c) (tolower(c)) - -#endif /* } */ - -#endif - diff --git a/Build/source/libs/lua52/lua52-src/src/ldblib.c b/Build/source/libs/lua52/lua52-src/src/ldblib.c deleted file mode 100644 index bd8df9da381..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ldblib.c +++ /dev/null @@ -1,408 +0,0 @@ -/* -** $Id: ldblib.c,v 1.132.1.2 2015/02/19 17:16:55 roberto Exp $ -** Interface from Lua to its debug API -** See Copyright Notice in lua.h -*/ - - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define ldblib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -#define HOOKKEY "_HKEY" - - -static void checkstack (lua_State *L, lua_State *L1, int n) { - if (L != L1 && !lua_checkstack(L1, n)) - luaL_error(L, "stack overflow"); -} - - -static int db_getregistry (lua_State *L) { - lua_pushvalue(L, LUA_REGISTRYINDEX); - return 1; -} - - -static int db_getmetatable (lua_State *L) { - luaL_checkany(L, 1); - if (!lua_getmetatable(L, 1)) { - lua_pushnil(L); /* no metatable */ - } - return 1; -} - - -static int db_setmetatable (lua_State *L) { - int t = lua_type(L, 2); - luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2, - "nil or table expected"); - lua_settop(L, 2); - lua_setmetatable(L, 1); - return 1; /* return 1st argument */ -} - - -static int db_getuservalue (lua_State *L) { - if (lua_type(L, 1) != LUA_TUSERDATA) - lua_pushnil(L); - else - lua_getuservalue(L, 1); - return 1; -} - - -static int db_setuservalue (lua_State *L) { - if (lua_type(L, 1) == LUA_TLIGHTUSERDATA) - luaL_argerror(L, 1, "full userdata expected, got light userdata"); - luaL_checktype(L, 1, LUA_TUSERDATA); - if (!lua_isnoneornil(L, 2)) - luaL_checktype(L, 2, LUA_TTABLE); - lua_settop(L, 2); - lua_setuservalue(L, 1); - return 1; -} - - -static void settabss (lua_State *L, const char *i, const char *v) { - lua_pushstring(L, v); - lua_setfield(L, -2, i); -} - - -static void settabsi (lua_State *L, const char *i, int v) { - lua_pushinteger(L, v); - lua_setfield(L, -2, i); -} - - -static void settabsb (lua_State *L, const char *i, int v) { - lua_pushboolean(L, v); - lua_setfield(L, -2, i); -} - - -static lua_State *getthread (lua_State *L, int *arg) { - if (lua_isthread(L, 1)) { - *arg = 1; - return lua_tothread(L, 1); - } - else { - *arg = 0; - return L; - } -} - - -static void treatstackoption (lua_State *L, lua_State *L1, const char *fname) { - if (L == L1) { - lua_pushvalue(L, -2); - lua_remove(L, -3); - } - else - lua_xmove(L1, L, 1); - lua_setfield(L, -2, fname); -} - - -static int db_getinfo (lua_State *L) { - lua_Debug ar; - int arg; - lua_State *L1 = getthread(L, &arg); - const char *options = luaL_optstring(L, arg+2, "flnStu"); - checkstack(L, L1, 3); - if (lua_isnumber(L, arg+1)) { - if (!lua_getstack(L1, (int)lua_tointeger(L, arg+1), &ar)) { - lua_pushnil(L); /* level out of range */ - return 1; - } - } - else if (lua_isfunction(L, arg+1)) { - lua_pushfstring(L, ">%s", options); - options = lua_tostring(L, -1); - lua_pushvalue(L, arg+1); - lua_xmove(L, L1, 1); - } - else - return luaL_argerror(L, arg+1, "function or level expected"); - if (!lua_getinfo(L1, options, &ar)) - return luaL_argerror(L, arg+2, "invalid option"); - lua_createtable(L, 0, 2); - if (strchr(options, 'S')) { - settabss(L, "source", ar.source); - settabss(L, "short_src", ar.short_src); - settabsi(L, "linedefined", ar.linedefined); - settabsi(L, "lastlinedefined", ar.lastlinedefined); - settabss(L, "what", ar.what); - } - if (strchr(options, 'l')) - settabsi(L, "currentline", ar.currentline); - if (strchr(options, 'u')) { - settabsi(L, "nups", ar.nups); - settabsi(L, "nparams", ar.nparams); - settabsb(L, "isvararg", ar.isvararg); - } - if (strchr(options, 'n')) { - settabss(L, "name", ar.name); - settabss(L, "namewhat", ar.namewhat); - } - if (strchr(options, 't')) - settabsb(L, "istailcall", ar.istailcall); - if (strchr(options, 'L')) - treatstackoption(L, L1, "activelines"); - if (strchr(options, 'f')) - treatstackoption(L, L1, "func"); - return 1; /* return table */ -} - - -static int db_getlocal (lua_State *L) { - int arg; - lua_State *L1 = getthread(L, &arg); - lua_Debug ar; - const char *name; - int nvar = luaL_checkint(L, arg+2); /* local-variable index */ - if (lua_isfunction(L, arg + 1)) { /* function argument? */ - lua_pushvalue(L, arg + 1); /* push function */ - lua_pushstring(L, lua_getlocal(L, NULL, nvar)); /* push local name */ - return 1; - } - else { /* stack-level argument */ - if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */ - return luaL_argerror(L, arg+1, "level out of range"); - checkstack(L, L1, 1); - name = lua_getlocal(L1, &ar, nvar); - if (name) { - lua_xmove(L1, L, 1); /* push local value */ - lua_pushstring(L, name); /* push name */ - lua_pushvalue(L, -2); /* re-order */ - return 2; - } - else { - lua_pushnil(L); /* no name (nor value) */ - return 1; - } - } -} - - -static int db_setlocal (lua_State *L) { - int arg; - lua_State *L1 = getthread(L, &arg); - lua_Debug ar; - if (!lua_getstack(L1, luaL_checkint(L, arg+1), &ar)) /* out of range? */ - return luaL_argerror(L, arg+1, "level out of range"); - luaL_checkany(L, arg+3); - lua_settop(L, arg+3); - checkstack(L, L1, 1); - lua_xmove(L, L1, 1); - lua_pushstring(L, lua_setlocal(L1, &ar, luaL_checkint(L, arg+2))); - return 1; -} - - -static int auxupvalue (lua_State *L, int get) { - const char *name; - int n = luaL_checkint(L, 2); - luaL_checktype(L, 1, LUA_TFUNCTION); - name = get ? lua_getupvalue(L, 1, n) : lua_setupvalue(L, 1, n); - if (name == NULL) return 0; - lua_pushstring(L, name); - lua_insert(L, -(get+1)); - return get + 1; -} - - -static int db_getupvalue (lua_State *L) { - return auxupvalue(L, 1); -} - - -static int db_setupvalue (lua_State *L) { - luaL_checkany(L, 3); - return auxupvalue(L, 0); -} - - -static int checkupval (lua_State *L, int argf, int argnup) { - lua_Debug ar; - int nup = luaL_checkint(L, argnup); - luaL_checktype(L, argf, LUA_TFUNCTION); - lua_pushvalue(L, argf); - lua_getinfo(L, ">u", &ar); - luaL_argcheck(L, 1 <= nup && nup <= ar.nups, argnup, "invalid upvalue index"); - return nup; -} - - -static int db_upvalueid (lua_State *L) { - int n = checkupval(L, 1, 2); - lua_pushlightuserdata(L, lua_upvalueid(L, 1, n)); - return 1; -} - - -static int db_upvaluejoin (lua_State *L) { - int n1 = checkupval(L, 1, 2); - int n2 = checkupval(L, 3, 4); - luaL_argcheck(L, !lua_iscfunction(L, 1), 1, "Lua function expected"); - luaL_argcheck(L, !lua_iscfunction(L, 3), 3, "Lua function expected"); - lua_upvaluejoin(L, 1, n1, 3, n2); - return 0; -} - - -#define gethooktable(L) luaL_getsubtable(L, LUA_REGISTRYINDEX, HOOKKEY) - - -static void hookf (lua_State *L, lua_Debug *ar) { - static const char *const hooknames[] = - {"call", "return", "line", "count", "tail call"}; - gethooktable(L); - lua_pushthread(L); - lua_rawget(L, -2); - if (lua_isfunction(L, -1)) { - lua_pushstring(L, hooknames[(int)ar->event]); - if (ar->currentline >= 0) - lua_pushinteger(L, ar->currentline); - else lua_pushnil(L); - lua_assert(lua_getinfo(L, "lS", ar)); - lua_call(L, 2, 0); - } -} - - -static int makemask (const char *smask, int count) { - int mask = 0; - if (strchr(smask, 'c')) mask |= LUA_MASKCALL; - if (strchr(smask, 'r')) mask |= LUA_MASKRET; - if (strchr(smask, 'l')) mask |= LUA_MASKLINE; - if (count > 0) mask |= LUA_MASKCOUNT; - return mask; -} - - -static char *unmakemask (int mask, char *smask) { - int i = 0; - if (mask & LUA_MASKCALL) smask[i++] = 'c'; - if (mask & LUA_MASKRET) smask[i++] = 'r'; - if (mask & LUA_MASKLINE) smask[i++] = 'l'; - smask[i] = '\0'; - return smask; -} - - -static int db_sethook (lua_State *L) { - int arg, mask, count; - lua_Hook func; - lua_State *L1 = getthread(L, &arg); - if (lua_isnoneornil(L, arg+1)) { - lua_settop(L, arg+1); - func = NULL; mask = 0; count = 0; /* turn off hooks */ - } - else { - const char *smask = luaL_checkstring(L, arg+2); - luaL_checktype(L, arg+1, LUA_TFUNCTION); - count = luaL_optint(L, arg+3, 0); - func = hookf; mask = makemask(smask, count); - } - if (gethooktable(L) == 0) { /* creating hook table? */ - lua_pushstring(L, "k"); - lua_setfield(L, -2, "__mode"); /** hooktable.__mode = "k" */ - lua_pushvalue(L, -1); - lua_setmetatable(L, -2); /* setmetatable(hooktable) = hooktable */ - } - checkstack(L, L1, 1); - lua_pushthread(L1); lua_xmove(L1, L, 1); - lua_pushvalue(L, arg+1); - lua_rawset(L, -3); /* set new hook */ - lua_sethook(L1, func, mask, count); /* set hooks */ - return 0; -} - - -static int db_gethook (lua_State *L) { - int arg; - lua_State *L1 = getthread(L, &arg); - char buff[5]; - int mask = lua_gethookmask(L1); - lua_Hook hook = lua_gethook(L1); - if (hook != NULL && hook != hookf) /* external hook? */ - lua_pushliteral(L, "external hook"); - else { - gethooktable(L); - checkstack(L, L1, 1); - lua_pushthread(L1); lua_xmove(L1, L, 1); - lua_rawget(L, -2); /* get hook */ - lua_remove(L, -2); /* remove hook table */ - } - lua_pushstring(L, unmakemask(mask, buff)); - lua_pushinteger(L, lua_gethookcount(L1)); - return 3; -} - - -static int db_debug (lua_State *L) { - for (;;) { - char buffer[250]; - luai_writestringerror("%s", "lua_debug> "); - if (fgets(buffer, sizeof(buffer), stdin) == 0 || - strcmp(buffer, "cont\n") == 0) - return 0; - if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") || - lua_pcall(L, 0, 0, 0)) - luai_writestringerror("%s\n", lua_tostring(L, -1)); - lua_settop(L, 0); /* remove eventual returns */ - } -} - - -static int db_traceback (lua_State *L) { - int arg; - lua_State *L1 = getthread(L, &arg); - const char *msg = lua_tostring(L, arg + 1); - if (msg == NULL && !lua_isnoneornil(L, arg + 1)) /* non-string 'msg'? */ - lua_pushvalue(L, arg + 1); /* return it untouched */ - else { - int level = luaL_optint(L, arg + 2, (L == L1) ? 1 : 0); - luaL_traceback(L, L1, msg, level); - } - return 1; -} - - -static const luaL_Reg dblib[] = { - {"debug", db_debug}, - {"getuservalue", db_getuservalue}, - {"gethook", db_gethook}, - {"getinfo", db_getinfo}, - {"getlocal", db_getlocal}, - {"getregistry", db_getregistry}, - {"getmetatable", db_getmetatable}, - {"getupvalue", db_getupvalue}, - {"upvaluejoin", db_upvaluejoin}, - {"upvalueid", db_upvalueid}, - {"setuservalue", db_setuservalue}, - {"sethook", db_sethook}, - {"setlocal", db_setlocal}, - {"setmetatable", db_setmetatable}, - {"setupvalue", db_setupvalue}, - {"traceback", db_traceback}, - {NULL, NULL} -}; - - -LUAMOD_API int luaopen_debug (lua_State *L) { - luaL_newlib(L, dblib); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/ldebug.c b/Build/source/libs/lua52/lua52-src/src/ldebug.c deleted file mode 100644 index 96118461d0f..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ldebug.c +++ /dev/null @@ -1,610 +0,0 @@ -/* -** $Id: ldebug.c,v 2.90.1.4 2015/02/19 17:05:13 roberto Exp $ -** Debug Interface -** See Copyright Notice in lua.h -*/ - - -#include <stdarg.h> -#include <stddef.h> -#include <string.h> - - -#define ldebug_c -#define LUA_CORE - -#include "lua.h" - -#include "lapi.h" -#include "lcode.h" -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lobject.h" -#include "lopcodes.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" -#include "lvm.h" - - - -#define noLuaClosure(f) ((f) == NULL || (f)->c.tt == LUA_TCCL) - - -static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name); - - -static int currentpc (CallInfo *ci) { - lua_assert(isLua(ci)); - return pcRel(ci->u.l.savedpc, ci_func(ci)->p); -} - - -static int currentline (CallInfo *ci) { - return getfuncline(ci_func(ci)->p, currentpc(ci)); -} - - -static void swapextra (lua_State *L) { - if (L->status == LUA_YIELD) { - CallInfo *ci = L->ci; /* get function that yielded */ - StkId temp = ci->func; /* exchange its 'func' and 'extra' values */ - ci->func = restorestack(L, ci->extra); - ci->extra = savestack(L, temp); - } -} - - -/* -** this function can be called asynchronous (e.g. during a signal) -*/ -LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count) { - if (func == NULL || mask == 0) { /* turn off hooks? */ - mask = 0; - func = NULL; - } - if (isLua(L->ci)) - L->oldpc = L->ci->u.l.savedpc; - L->hook = func; - L->basehookcount = count; - resethookcount(L); - L->hookmask = cast_byte(mask); - return 1; -} - - -LUA_API lua_Hook lua_gethook (lua_State *L) { - return L->hook; -} - - -LUA_API int lua_gethookmask (lua_State *L) { - return L->hookmask; -} - - -LUA_API int lua_gethookcount (lua_State *L) { - return L->basehookcount; -} - - -LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar) { - int status; - CallInfo *ci; - if (level < 0) return 0; /* invalid (negative) level */ - lua_lock(L); - for (ci = L->ci; level > 0 && ci != &L->base_ci; ci = ci->previous) - level--; - if (level == 0 && ci != &L->base_ci) { /* level found? */ - status = 1; - ar->i_ci = ci; - } - else status = 0; /* no such level */ - lua_unlock(L); - return status; -} - - -static const char *upvalname (Proto *p, int uv) { - TString *s = check_exp(uv < p->sizeupvalues, p->upvalues[uv].name); - if (s == NULL) return "?"; - else return getstr(s); -} - - -static const char *findvararg (CallInfo *ci, int n, StkId *pos) { - int nparams = clLvalue(ci->func)->p->numparams; - if (n >= ci->u.l.base - ci->func - nparams) - return NULL; /* no such vararg */ - else { - *pos = ci->func + nparams + n; - return "(*vararg)"; /* generic name for any vararg */ - } -} - - -static const char *findlocal (lua_State *L, CallInfo *ci, int n, - StkId *pos) { - const char *name = NULL; - StkId base; - if (isLua(ci)) { - if (n < 0) /* access to vararg values? */ - return findvararg(ci, -n, pos); - else { - base = ci->u.l.base; - name = luaF_getlocalname(ci_func(ci)->p, n, currentpc(ci)); - } - } - else - base = ci->func + 1; - if (name == NULL) { /* no 'standard' name? */ - StkId limit = (ci == L->ci) ? L->top : ci->next->func; - if (limit - base >= n && n > 0) /* is 'n' inside 'ci' stack? */ - name = "(*temporary)"; /* generic name for any valid slot */ - else - return NULL; /* no name */ - } - *pos = base + (n - 1); - return name; -} - - -LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n) { - const char *name; - lua_lock(L); - swapextra(L); - if (ar == NULL) { /* information about non-active function? */ - if (!isLfunction(L->top - 1)) /* not a Lua function? */ - name = NULL; - else /* consider live variables at function start (parameters) */ - name = luaF_getlocalname(clLvalue(L->top - 1)->p, n, 0); - } - else { /* active function; get information through 'ar' */ - StkId pos = 0; /* to avoid warnings */ - name = findlocal(L, ar->i_ci, n, &pos); - if (name) { - setobj2s(L, L->top, pos); - api_incr_top(L); - } - } - swapextra(L); - lua_unlock(L); - return name; -} - - -LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n) { - StkId pos = 0; /* to avoid warnings */ - const char *name; - lua_lock(L); - swapextra(L); - name = findlocal(L, ar->i_ci, n, &pos); - if (name) - setobjs2s(L, pos, L->top - 1); - L->top--; /* pop value */ - swapextra(L); - lua_unlock(L); - return name; -} - - -static void funcinfo (lua_Debug *ar, Closure *cl) { - if (noLuaClosure(cl)) { - ar->source = "=[C]"; - ar->linedefined = -1; - ar->lastlinedefined = -1; - ar->what = "C"; - } - else { - Proto *p = cl->l.p; - ar->source = p->source ? getstr(p->source) : "=?"; - ar->linedefined = p->linedefined; - ar->lastlinedefined = p->lastlinedefined; - ar->what = (ar->linedefined == 0) ? "main" : "Lua"; - } - luaO_chunkid(ar->short_src, ar->source, LUA_IDSIZE); -} - - -static void collectvalidlines (lua_State *L, Closure *f) { - if (noLuaClosure(f)) { - setnilvalue(L->top); - api_incr_top(L); - } - else { - int i; - TValue v; - int *lineinfo = f->l.p->lineinfo; - Table *t = luaH_new(L); /* new table to store active lines */ - sethvalue(L, L->top, t); /* push it on stack */ - api_incr_top(L); - setbvalue(&v, 1); /* boolean 'true' to be the value of all indices */ - for (i = 0; i < f->l.p->sizelineinfo; i++) /* for all lines with code */ - luaH_setint(L, t, lineinfo[i], &v); /* table[line] = true */ - } -} - - -static int auxgetinfo (lua_State *L, const char *what, lua_Debug *ar, - Closure *f, CallInfo *ci) { - int status = 1; - for (; *what; what++) { - switch (*what) { - case 'S': { - funcinfo(ar, f); - break; - } - case 'l': { - ar->currentline = (ci && isLua(ci)) ? currentline(ci) : -1; - break; - } - case 'u': { - ar->nups = (f == NULL) ? 0 : f->c.nupvalues; - if (noLuaClosure(f)) { - ar->isvararg = 1; - ar->nparams = 0; - } - else { - ar->isvararg = f->l.p->is_vararg; - ar->nparams = f->l.p->numparams; - } - break; - } - case 't': { - ar->istailcall = (ci) ? ci->callstatus & CIST_TAIL : 0; - break; - } - case 'n': { - /* calling function is a known Lua function? */ - if (ci && !(ci->callstatus & CIST_TAIL) && isLua(ci->previous)) - ar->namewhat = getfuncname(L, ci->previous, &ar->name); - else - ar->namewhat = NULL; - if (ar->namewhat == NULL) { - ar->namewhat = ""; /* not found */ - ar->name = NULL; - } - break; - } - case 'L': - case 'f': /* handled by lua_getinfo */ - break; - default: status = 0; /* invalid option */ - } - } - return status; -} - - -LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) { - int status; - Closure *cl; - CallInfo *ci; - StkId func; - lua_lock(L); - swapextra(L); - if (*what == '>') { - ci = NULL; - func = L->top - 1; - api_check(L, ttisfunction(func), "function expected"); - what++; /* skip the '>' */ - L->top--; /* pop function */ - } - else { - ci = ar->i_ci; - func = ci->func; - lua_assert(ttisfunction(ci->func)); - } - cl = ttisclosure(func) ? clvalue(func) : NULL; - status = auxgetinfo(L, what, ar, cl, ci); - if (strchr(what, 'f')) { - setobjs2s(L, L->top, func); - api_incr_top(L); - } - swapextra(L); - if (strchr(what, 'L')) - collectvalidlines(L, cl); - lua_unlock(L); - return status; -} - - -/* -** {====================================================== -** Symbolic Execution -** ======================================================= -*/ - -static const char *getobjname (Proto *p, int lastpc, int reg, - const char **name); - - -/* -** find a "name" for the RK value 'c' -*/ -static void kname (Proto *p, int pc, int c, const char **name) { - if (ISK(c)) { /* is 'c' a constant? */ - TValue *kvalue = &p->k[INDEXK(c)]; - if (ttisstring(kvalue)) { /* literal constant? */ - *name = svalue(kvalue); /* it is its own name */ - return; - } - /* else no reasonable name found */ - } - else { /* 'c' is a register */ - const char *what = getobjname(p, pc, c, name); /* search for 'c' */ - if (what && *what == 'c') { /* found a constant name? */ - return; /* 'name' already filled */ - } - /* else no reasonable name found */ - } - *name = "?"; /* no reasonable name found */ -} - - -static int filterpc (int pc, int jmptarget) { - if (pc < jmptarget) /* is code conditional (inside a jump)? */ - return -1; /* cannot know who sets that register */ - else return pc; /* current position sets that register */ -} - - -/* -** try to find last instruction before 'lastpc' that modified register 'reg' -*/ -static int findsetreg (Proto *p, int lastpc, int reg) { - int pc; - int setreg = -1; /* keep last instruction that changed 'reg' */ - int jmptarget = 0; /* any code before this address is conditional */ - for (pc = 0; pc < lastpc; pc++) { - Instruction i = p->code[pc]; - OpCode op = GET_OPCODE(i); - int a = GETARG_A(i); - switch (op) { - case OP_LOADNIL: { - int b = GETARG_B(i); - if (a <= reg && reg <= a + b) /* set registers from 'a' to 'a+b' */ - setreg = filterpc(pc, jmptarget); - break; - } - case OP_TFORCALL: { - if (reg >= a + 2) /* affect all regs above its base */ - setreg = filterpc(pc, jmptarget); - break; - } - case OP_CALL: - case OP_TAILCALL: { - if (reg >= a) /* affect all registers above base */ - setreg = filterpc(pc, jmptarget); - break; - } - case OP_JMP: { - int b = GETARG_sBx(i); - int dest = pc + 1 + b; - /* jump is forward and do not skip `lastpc'? */ - if (pc < dest && dest <= lastpc) { - if (dest > jmptarget) - jmptarget = dest; /* update 'jmptarget' */ - } - break; - } - case OP_TEST: { - if (reg == a) /* jumped code can change 'a' */ - setreg = filterpc(pc, jmptarget); - break; - } - default: - if (testAMode(op) && reg == a) /* any instruction that set A */ - setreg = filterpc(pc, jmptarget); - break; - } - } - return setreg; -} - - -static const char *getobjname (Proto *p, int lastpc, int reg, - const char **name) { - int pc; - *name = luaF_getlocalname(p, reg + 1, lastpc); - if (*name) /* is a local? */ - return "local"; - /* else try symbolic execution */ - pc = findsetreg(p, lastpc, reg); - if (pc != -1) { /* could find instruction? */ - Instruction i = p->code[pc]; - OpCode op = GET_OPCODE(i); - switch (op) { - case OP_MOVE: { - int b = GETARG_B(i); /* move from 'b' to 'a' */ - if (b < GETARG_A(i)) - return getobjname(p, pc, b, name); /* get name for 'b' */ - break; - } - case OP_GETTABUP: - case OP_GETTABLE: { - int k = GETARG_C(i); /* key index */ - int t = GETARG_B(i); /* table index */ - const char *vn = (op == OP_GETTABLE) /* name of indexed variable */ - ? luaF_getlocalname(p, t + 1, pc) - : upvalname(p, t); - kname(p, pc, k, name); - return (vn && strcmp(vn, LUA_ENV) == 0) ? "global" : "field"; - } - case OP_GETUPVAL: { - *name = upvalname(p, GETARG_B(i)); - return "upvalue"; - } - case OP_LOADK: - case OP_LOADKX: { - int b = (op == OP_LOADK) ? GETARG_Bx(i) - : GETARG_Ax(p->code[pc + 1]); - if (ttisstring(&p->k[b])) { - *name = svalue(&p->k[b]); - return "constant"; - } - break; - } - case OP_SELF: { - int k = GETARG_C(i); /* key index */ - kname(p, pc, k, name); - return "method"; - } - default: break; /* go through to return NULL */ - } - } - return NULL; /* could not find reasonable name */ -} - - -static const char *getfuncname (lua_State *L, CallInfo *ci, const char **name) { - TMS tm; - Proto *p = ci_func(ci)->p; /* calling function */ - int pc = currentpc(ci); /* calling instruction index */ - Instruction i = p->code[pc]; /* calling instruction */ - switch (GET_OPCODE(i)) { - case OP_CALL: - case OP_TAILCALL: /* get function name */ - return getobjname(p, pc, GETARG_A(i), name); - case OP_TFORCALL: { /* for iterator */ - *name = "for iterator"; - return "for iterator"; - } - /* all other instructions can call only through metamethods */ - case OP_SELF: - case OP_GETTABUP: - case OP_GETTABLE: tm = TM_INDEX; break; - case OP_SETTABUP: - case OP_SETTABLE: tm = TM_NEWINDEX; break; - case OP_EQ: tm = TM_EQ; break; - case OP_ADD: tm = TM_ADD; break; - case OP_SUB: tm = TM_SUB; break; - case OP_MUL: tm = TM_MUL; break; - case OP_DIV: tm = TM_DIV; break; - case OP_MOD: tm = TM_MOD; break; - case OP_POW: tm = TM_POW; break; - case OP_UNM: tm = TM_UNM; break; - case OP_LEN: tm = TM_LEN; break; - case OP_LT: tm = TM_LT; break; - case OP_LE: tm = TM_LE; break; - case OP_CONCAT: tm = TM_CONCAT; break; - default: - return NULL; /* else no useful name can be found */ - } - *name = getstr(G(L)->tmname[tm]); - return "metamethod"; -} - -/* }====================================================== */ - - - -/* -** only ANSI way to check whether a pointer points to an array -** (used only for error messages, so efficiency is not a big concern) -*/ -static int isinstack (CallInfo *ci, const TValue *o) { - StkId p; - for (p = ci->u.l.base; p < ci->top; p++) - if (o == p) return 1; - return 0; -} - - -static const char *getupvalname (CallInfo *ci, const TValue *o, - const char **name) { - LClosure *c = ci_func(ci); - int i; - for (i = 0; i < c->nupvalues; i++) { - if (c->upvals[i]->v == o) { - *name = upvalname(c->p, i); - return "upvalue"; - } - } - return NULL; -} - - -l_noret luaG_typeerror (lua_State *L, const TValue *o, const char *op) { - CallInfo *ci = L->ci; - const char *name = NULL; - const char *t = objtypename(o); - const char *kind = NULL; - if (isLua(ci)) { - kind = getupvalname(ci, o, &name); /* check whether 'o' is an upvalue */ - if (!kind && isinstack(ci, o)) /* no? try a register */ - kind = getobjname(ci_func(ci)->p, currentpc(ci), - cast_int(o - ci->u.l.base), &name); - } - if (kind) - luaG_runerror(L, "attempt to %s %s " LUA_QS " (a %s value)", - op, kind, name, t); - else - luaG_runerror(L, "attempt to %s a %s value", op, t); -} - - -l_noret luaG_concaterror (lua_State *L, StkId p1, StkId p2) { - if (ttisstring(p1) || ttisnumber(p1)) p1 = p2; - lua_assert(!ttisstring(p1) && !ttisnumber(p1)); - luaG_typeerror(L, p1, "concatenate"); -} - - -l_noret luaG_aritherror (lua_State *L, const TValue *p1, const TValue *p2) { - TValue temp; - if (luaV_tonumber(p1, &temp) == NULL) - p2 = p1; /* first operand is wrong */ - luaG_typeerror(L, p2, "perform arithmetic on"); -} - - -l_noret luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) { - const char *t1 = objtypename(p1); - const char *t2 = objtypename(p2); - if (t1 == t2) - luaG_runerror(L, "attempt to compare two %s values", t1); - else - luaG_runerror(L, "attempt to compare %s with %s", t1, t2); -} - - -static void addinfo (lua_State *L, const char *msg) { - CallInfo *ci = L->ci; - if (isLua(ci)) { /* is Lua code? */ - char buff[LUA_IDSIZE]; /* add file:line information */ - int line = currentline(ci); - TString *src = ci_func(ci)->p->source; - if (src) - luaO_chunkid(buff, getstr(src), LUA_IDSIZE); - else { /* no source available; use "?" instead */ - buff[0] = '?'; buff[1] = '\0'; - } - luaO_pushfstring(L, "%s:%d: %s", buff, line, msg); - } -} - - -l_noret luaG_errormsg (lua_State *L) { - if (L->errfunc != 0) { /* is there an error handling function? */ - StkId errfunc = restorestack(L, L->errfunc); - if (!ttisfunction(errfunc)) luaD_throw(L, LUA_ERRERR); - setobjs2s(L, L->top, L->top - 1); /* move argument */ - setobjs2s(L, L->top - 1, errfunc); /* push function */ - L->top++; - luaD_call(L, L->top - 2, 1, 0); /* call it */ - } - luaD_throw(L, LUA_ERRRUN); -} - - -l_noret luaG_runerror (lua_State *L, const char *fmt, ...) { - va_list argp; - va_start(argp, fmt); - addinfo(L, luaO_pushvfstring(L, fmt, argp)); - va_end(argp); - luaG_errormsg(L); -} - diff --git a/Build/source/libs/lua52/lua52-src/src/ldebug.h b/Build/source/libs/lua52/lua52-src/src/ldebug.h deleted file mode 100644 index 6445c763ea5..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ldebug.h +++ /dev/null @@ -1,34 +0,0 @@ -/* -** $Id: ldebug.h,v 2.7.1.1 2013/04/12 18:48:47 roberto Exp $ -** Auxiliary functions from Debug Interface module -** See Copyright Notice in lua.h -*/ - -#ifndef ldebug_h -#define ldebug_h - - -#include "lstate.h" - - -#define pcRel(pc, p) (cast(int, (pc) - (p)->code) - 1) - -#define getfuncline(f,pc) (((f)->lineinfo) ? (f)->lineinfo[pc] : 0) - -#define resethookcount(L) (L->hookcount = L->basehookcount) - -/* Active Lua function (given call info) */ -#define ci_func(ci) (clLvalue((ci)->func)) - - -LUAI_FUNC l_noret luaG_typeerror (lua_State *L, const TValue *o, - const char *opname); -LUAI_FUNC l_noret luaG_concaterror (lua_State *L, StkId p1, StkId p2); -LUAI_FUNC l_noret luaG_aritherror (lua_State *L, const TValue *p1, - const TValue *p2); -LUAI_FUNC l_noret luaG_ordererror (lua_State *L, const TValue *p1, - const TValue *p2); -LUAI_FUNC l_noret luaG_runerror (lua_State *L, const char *fmt, ...); -LUAI_FUNC l_noret luaG_errormsg (lua_State *L); - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/ldo.c b/Build/source/libs/lua52/lua52-src/src/ldo.c deleted file mode 100644 index e9dd5fa9519..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ldo.c +++ /dev/null @@ -1,681 +0,0 @@ -/* -** $Id: ldo.c,v 2.108.1.3 2013/11/08 18:22:50 roberto Exp $ -** Stack and Call structure of Lua -** See Copyright Notice in lua.h -*/ - - -#include <setjmp.h> -#include <stdlib.h> -#include <string.h> - -#define ldo_c -#define LUA_CORE - -#include "lua.h" - -#include "lapi.h" -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lgc.h" -#include "lmem.h" -#include "lobject.h" -#include "lopcodes.h" -#include "lparser.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" -#include "lundump.h" -#include "lvm.h" -#include "lzio.h" - - - - -/* -** {====================================================== -** Error-recovery functions -** ======================================================= -*/ - -/* -** LUAI_THROW/LUAI_TRY define how Lua does exception handling. By -** default, Lua handles errors with exceptions when compiling as -** C++ code, with _longjmp/_setjmp when asked to use them, and with -** longjmp/setjmp otherwise. -*/ -#if !defined(LUAI_THROW) - -#if defined(__cplusplus) && !defined(LUA_USE_LONGJMP) -/* C++ exceptions */ -#define LUAI_THROW(L,c) throw(c) -#define LUAI_TRY(L,c,a) \ - try { a } catch(...) { if ((c)->status == 0) (c)->status = -1; } -#define luai_jmpbuf int /* dummy variable */ - -#elif defined(LUA_USE_ULONGJMP) -/* in Unix, try _longjmp/_setjmp (more efficient) */ -#define LUAI_THROW(L,c) _longjmp((c)->b, 1) -#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a } -#define luai_jmpbuf jmp_buf - -#else -/* default handling with long jumps */ -#define LUAI_THROW(L,c) longjmp((c)->b, 1) -#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a } -#define luai_jmpbuf jmp_buf - -#endif - -#endif - - - -/* chain list of long jump buffers */ -struct lua_longjmp { - struct lua_longjmp *previous; - luai_jmpbuf b; - volatile int status; /* error code */ -}; - - -static void seterrorobj (lua_State *L, int errcode, StkId oldtop) { - switch (errcode) { - case LUA_ERRMEM: { /* memory error? */ - setsvalue2s(L, oldtop, G(L)->memerrmsg); /* reuse preregistered msg. */ - break; - } - case LUA_ERRERR: { - setsvalue2s(L, oldtop, luaS_newliteral(L, "error in error handling")); - break; - } - default: { - setobjs2s(L, oldtop, L->top - 1); /* error message on current top */ - break; - } - } - L->top = oldtop + 1; -} - - -l_noret luaD_throw (lua_State *L, int errcode) { - if (L->errorJmp) { /* thread has an error handler? */ - L->errorJmp->status = errcode; /* set status */ - LUAI_THROW(L, L->errorJmp); /* jump to it */ - } - else { /* thread has no error handler */ - L->status = cast_byte(errcode); /* mark it as dead */ - if (G(L)->mainthread->errorJmp) { /* main thread has a handler? */ - setobjs2s(L, G(L)->mainthread->top++, L->top - 1); /* copy error obj. */ - luaD_throw(G(L)->mainthread, errcode); /* re-throw in main thread */ - } - else { /* no handler at all; abort */ - if (G(L)->panic) { /* panic function? */ - lua_unlock(L); - G(L)->panic(L); /* call it (last chance to jump out) */ - } - abort(); - } - } -} - - -int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud) { - unsigned short oldnCcalls = L->nCcalls; - struct lua_longjmp lj; - lj.status = LUA_OK; - lj.previous = L->errorJmp; /* chain new error handler */ - L->errorJmp = &lj; - LUAI_TRY(L, &lj, - (*f)(L, ud); - ); - L->errorJmp = lj.previous; /* restore old error handler */ - L->nCcalls = oldnCcalls; - return lj.status; -} - -/* }====================================================== */ - - -static void correctstack (lua_State *L, TValue *oldstack) { - CallInfo *ci; - GCObject *up; - L->top = (L->top - oldstack) + L->stack; - for (up = L->openupval; up != NULL; up = up->gch.next) - gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack; - for (ci = L->ci; ci != NULL; ci = ci->previous) { - ci->top = (ci->top - oldstack) + L->stack; - ci->func = (ci->func - oldstack) + L->stack; - if (isLua(ci)) - ci->u.l.base = (ci->u.l.base - oldstack) + L->stack; - } -} - - -/* some space for error handling */ -#define ERRORSTACKSIZE (LUAI_MAXSTACK + 200) - - -void luaD_reallocstack (lua_State *L, int newsize) { - TValue *oldstack = L->stack; - int lim = L->stacksize; - lua_assert(newsize <= LUAI_MAXSTACK || newsize == ERRORSTACKSIZE); - lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK); - luaM_reallocvector(L, L->stack, L->stacksize, newsize, TValue); - for (; lim < newsize; lim++) - setnilvalue(L->stack + lim); /* erase new segment */ - L->stacksize = newsize; - L->stack_last = L->stack + newsize - EXTRA_STACK; - correctstack(L, oldstack); -} - - -void luaD_growstack (lua_State *L, int n) { - int size = L->stacksize; - if (size > LUAI_MAXSTACK) /* error after extra size? */ - luaD_throw(L, LUA_ERRERR); - else { - int needed = cast_int(L->top - L->stack) + n + EXTRA_STACK; - int newsize = 2 * size; - if (newsize > LUAI_MAXSTACK) newsize = LUAI_MAXSTACK; - if (newsize < needed) newsize = needed; - if (newsize > LUAI_MAXSTACK) { /* stack overflow? */ - luaD_reallocstack(L, ERRORSTACKSIZE); - luaG_runerror(L, "stack overflow"); - } - else - luaD_reallocstack(L, newsize); - } -} - - -static int stackinuse (lua_State *L) { - CallInfo *ci; - StkId lim = L->top; - for (ci = L->ci; ci != NULL; ci = ci->previous) { - lua_assert(ci->top <= L->stack_last); - if (lim < ci->top) lim = ci->top; - } - return cast_int(lim - L->stack) + 1; /* part of stack in use */ -} - - -void luaD_shrinkstack (lua_State *L) { - int inuse = stackinuse(L); - int goodsize = inuse + (inuse / 8) + 2*EXTRA_STACK; - if (goodsize > LUAI_MAXSTACK) goodsize = LUAI_MAXSTACK; - if (inuse > LUAI_MAXSTACK || /* handling stack overflow? */ - goodsize >= L->stacksize) /* would grow instead of shrink? */ - condmovestack(L); /* don't change stack (change only for debugging) */ - else - luaD_reallocstack(L, goodsize); /* shrink it */ -} - - -void luaD_hook (lua_State *L, int event, int line) { - lua_Hook hook = L->hook; - if (hook && L->allowhook) { - CallInfo *ci = L->ci; - ptrdiff_t top = savestack(L, L->top); - ptrdiff_t ci_top = savestack(L, ci->top); - lua_Debug ar; - ar.event = event; - ar.currentline = line; - ar.i_ci = ci; - luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */ - ci->top = L->top + LUA_MINSTACK; - lua_assert(ci->top <= L->stack_last); - L->allowhook = 0; /* cannot call hooks inside a hook */ - ci->callstatus |= CIST_HOOKED; - lua_unlock(L); - (*hook)(L, &ar); - lua_lock(L); - lua_assert(!L->allowhook); - L->allowhook = 1; - ci->top = restorestack(L, ci_top); - L->top = restorestack(L, top); - ci->callstatus &= ~CIST_HOOKED; - } -} - - -static void callhook (lua_State *L, CallInfo *ci) { - int hook = LUA_HOOKCALL; - ci->u.l.savedpc++; /* hooks assume 'pc' is already incremented */ - if (isLua(ci->previous) && - GET_OPCODE(*(ci->previous->u.l.savedpc - 1)) == OP_TAILCALL) { - ci->callstatus |= CIST_TAIL; - hook = LUA_HOOKTAILCALL; - } - luaD_hook(L, hook, -1); - ci->u.l.savedpc--; /* correct 'pc' */ -} - - -static StkId adjust_varargs (lua_State *L, Proto *p, int actual) { - int i; - int nfixargs = p->numparams; - StkId base, fixed; - lua_assert(actual >= nfixargs); - /* move fixed parameters to final position */ - luaD_checkstack(L, p->maxstacksize); /* check again for new 'base' */ - fixed = L->top - actual; /* first fixed argument */ - base = L->top; /* final position of first argument */ - for (i=0; i<nfixargs; i++) { - setobjs2s(L, L->top++, fixed + i); - setnilvalue(fixed + i); - } - return base; -} - - -static StkId tryfuncTM (lua_State *L, StkId func) { - const TValue *tm = luaT_gettmbyobj(L, func, TM_CALL); - StkId p; - ptrdiff_t funcr = savestack(L, func); - if (!ttisfunction(tm)) - luaG_typeerror(L, func, "call"); - /* Open a hole inside the stack at `func' */ - for (p = L->top; p > func; p--) setobjs2s(L, p, p-1); - incr_top(L); - func = restorestack(L, funcr); /* previous call may change stack */ - setobj2s(L, func, tm); /* tag method is the new function to be called */ - return func; -} - - - -#define next_ci(L) (L->ci = (L->ci->next ? L->ci->next : luaE_extendCI(L))) - - -/* -** returns true if function has been executed (C function) -*/ -int luaD_precall (lua_State *L, StkId func, int nresults) { - lua_CFunction f; - CallInfo *ci; - int n; /* number of arguments (Lua) or returns (C) */ - ptrdiff_t funcr = savestack(L, func); - switch (ttype(func)) { - case LUA_TLCF: /* light C function */ - f = fvalue(func); - goto Cfunc; - case LUA_TCCL: { /* C closure */ - f = clCvalue(func)->f; - Cfunc: - luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */ - ci = next_ci(L); /* now 'enter' new function */ - ci->nresults = nresults; - ci->func = restorestack(L, funcr); - ci->top = L->top + LUA_MINSTACK; - lua_assert(ci->top <= L->stack_last); - ci->callstatus = 0; - luaC_checkGC(L); /* stack grow uses memory */ - if (L->hookmask & LUA_MASKCALL) - luaD_hook(L, LUA_HOOKCALL, -1); - lua_unlock(L); - n = (*f)(L); /* do the actual call */ - lua_lock(L); - api_checknelems(L, n); - luaD_poscall(L, L->top - n); - return 1; - } - case LUA_TLCL: { /* Lua function: prepare its call */ - StkId base; - Proto *p = clLvalue(func)->p; - n = cast_int(L->top - func) - 1; /* number of real arguments */ - luaD_checkstack(L, p->maxstacksize); - for (; n < p->numparams; n++) - setnilvalue(L->top++); /* complete missing arguments */ - if (!p->is_vararg) { - func = restorestack(L, funcr); - base = func + 1; - } - else { - base = adjust_varargs(L, p, n); - func = restorestack(L, funcr); /* previous call can change stack */ - } - ci = next_ci(L); /* now 'enter' new function */ - ci->nresults = nresults; - ci->func = func; - ci->u.l.base = base; - ci->top = base + p->maxstacksize; - lua_assert(ci->top <= L->stack_last); - ci->u.l.savedpc = p->code; /* starting point */ - ci->callstatus = CIST_LUA; - L->top = ci->top; - luaC_checkGC(L); /* stack grow uses memory */ - if (L->hookmask & LUA_MASKCALL) - callhook(L, ci); - return 0; - } - default: { /* not a function */ - func = tryfuncTM(L, func); /* retry with 'function' tag method */ - return luaD_precall(L, func, nresults); /* now it must be a function */ - } - } -} - - -int luaD_poscall (lua_State *L, StkId firstResult) { - StkId res; - int wanted, i; - CallInfo *ci = L->ci; - if (L->hookmask & (LUA_MASKRET | LUA_MASKLINE)) { - if (L->hookmask & LUA_MASKRET) { - ptrdiff_t fr = savestack(L, firstResult); /* hook may change stack */ - luaD_hook(L, LUA_HOOKRET, -1); - firstResult = restorestack(L, fr); - } - L->oldpc = ci->previous->u.l.savedpc; /* 'oldpc' for caller function */ - } - res = ci->func; /* res == final position of 1st result */ - wanted = ci->nresults; - L->ci = ci = ci->previous; /* back to caller */ - /* move results to correct place */ - for (i = wanted; i != 0 && firstResult < L->top; i--) - setobjs2s(L, res++, firstResult++); - while (i-- > 0) - setnilvalue(res++); - L->top = res; - return (wanted - LUA_MULTRET); /* 0 iff wanted == LUA_MULTRET */ -} - - -/* -** Call a function (C or Lua). The function to be called is at *func. -** The arguments are on the stack, right after the function. -** When returns, all the results are on the stack, starting at the original -** function position. -*/ -void luaD_call (lua_State *L, StkId func, int nResults, int allowyield) { - if (++L->nCcalls >= LUAI_MAXCCALLS) { - if (L->nCcalls == LUAI_MAXCCALLS) - luaG_runerror(L, "C stack overflow"); - else if (L->nCcalls >= (LUAI_MAXCCALLS + (LUAI_MAXCCALLS>>3))) - luaD_throw(L, LUA_ERRERR); /* error while handing stack error */ - } - if (!allowyield) L->nny++; - if (!luaD_precall(L, func, nResults)) /* is a Lua function? */ - luaV_execute(L); /* call it */ - if (!allowyield) L->nny--; - L->nCcalls--; -} - - -static void finishCcall (lua_State *L) { - CallInfo *ci = L->ci; - int n; - lua_assert(ci->u.c.k != NULL); /* must have a continuation */ - lua_assert(L->nny == 0); - if (ci->callstatus & CIST_YPCALL) { /* was inside a pcall? */ - ci->callstatus &= ~CIST_YPCALL; /* finish 'lua_pcall' */ - L->errfunc = ci->u.c.old_errfunc; - } - /* finish 'lua_callk'/'lua_pcall' */ - adjustresults(L, ci->nresults); - /* call continuation function */ - if (!(ci->callstatus & CIST_STAT)) /* no call status? */ - ci->u.c.status = LUA_YIELD; /* 'default' status */ - lua_assert(ci->u.c.status != LUA_OK); - ci->callstatus = (ci->callstatus & ~(CIST_YPCALL | CIST_STAT)) | CIST_YIELDED; - lua_unlock(L); - n = (*ci->u.c.k)(L); - lua_lock(L); - api_checknelems(L, n); - /* finish 'luaD_precall' */ - luaD_poscall(L, L->top - n); -} - - -static void unroll (lua_State *L, void *ud) { - UNUSED(ud); - for (;;) { - if (L->ci == &L->base_ci) /* stack is empty? */ - return; /* coroutine finished normally */ - if (!isLua(L->ci)) /* C function? */ - finishCcall(L); - else { /* Lua function */ - luaV_finishOp(L); /* finish interrupted instruction */ - luaV_execute(L); /* execute down to higher C 'boundary' */ - } - } -} - - -/* -** check whether thread has a suspended protected call -*/ -static CallInfo *findpcall (lua_State *L) { - CallInfo *ci; - for (ci = L->ci; ci != NULL; ci = ci->previous) { /* search for a pcall */ - if (ci->callstatus & CIST_YPCALL) - return ci; - } - return NULL; /* no pending pcall */ -} - - -static int recover (lua_State *L, int status) { - StkId oldtop; - CallInfo *ci = findpcall(L); - if (ci == NULL) return 0; /* no recovery point */ - /* "finish" luaD_pcall */ - oldtop = restorestack(L, ci->extra); - luaF_close(L, oldtop); - seterrorobj(L, status, oldtop); - L->ci = ci; - L->allowhook = ci->u.c.old_allowhook; - L->nny = 0; /* should be zero to be yieldable */ - luaD_shrinkstack(L); - L->errfunc = ci->u.c.old_errfunc; - ci->callstatus |= CIST_STAT; /* call has error status */ - ci->u.c.status = status; /* (here it is) */ - return 1; /* continue running the coroutine */ -} - - -/* -** signal an error in the call to 'resume', not in the execution of the -** coroutine itself. (Such errors should not be handled by any coroutine -** error handler and should not kill the coroutine.) -*/ -static l_noret resume_error (lua_State *L, const char *msg, StkId firstArg) { - L->top = firstArg; /* remove args from the stack */ - setsvalue2s(L, L->top, luaS_new(L, msg)); /* push error message */ - api_incr_top(L); - luaD_throw(L, -1); /* jump back to 'lua_resume' */ -} - - -/* -** do the work for 'lua_resume' in protected mode -*/ -static void resume (lua_State *L, void *ud) { - int nCcalls = L->nCcalls; - StkId firstArg = cast(StkId, ud); - CallInfo *ci = L->ci; - if (nCcalls >= LUAI_MAXCCALLS) - resume_error(L, "C stack overflow", firstArg); - if (L->status == LUA_OK) { /* may be starting a coroutine */ - if (ci != &L->base_ci) /* not in base level? */ - resume_error(L, "cannot resume non-suspended coroutine", firstArg); - /* coroutine is in base level; start running it */ - if (!luaD_precall(L, firstArg - 1, LUA_MULTRET)) /* Lua function? */ - luaV_execute(L); /* call it */ - } - else if (L->status != LUA_YIELD) - resume_error(L, "cannot resume dead coroutine", firstArg); - else { /* resuming from previous yield */ - L->status = LUA_OK; - ci->func = restorestack(L, ci->extra); - if (isLua(ci)) /* yielded inside a hook? */ - luaV_execute(L); /* just continue running Lua code */ - else { /* 'common' yield */ - if (ci->u.c.k != NULL) { /* does it have a continuation? */ - int n; - ci->u.c.status = LUA_YIELD; /* 'default' status */ - ci->callstatus |= CIST_YIELDED; - lua_unlock(L); - n = (*ci->u.c.k)(L); /* call continuation */ - lua_lock(L); - api_checknelems(L, n); - firstArg = L->top - n; /* yield results come from continuation */ - } - luaD_poscall(L, firstArg); /* finish 'luaD_precall' */ - } - unroll(L, NULL); - } - lua_assert(nCcalls == L->nCcalls); -} - - -LUA_API int lua_resume (lua_State *L, lua_State *from, int nargs) { - int status; - int oldnny = L->nny; /* save 'nny' */ - lua_lock(L); - luai_userstateresume(L, nargs); - L->nCcalls = (from) ? from->nCcalls + 1 : 1; - L->nny = 0; /* allow yields */ - api_checknelems(L, (L->status == LUA_OK) ? nargs + 1 : nargs); - status = luaD_rawrunprotected(L, resume, L->top - nargs); - if (status == -1) /* error calling 'lua_resume'? */ - status = LUA_ERRRUN; - else { /* yield or regular error */ - while (status != LUA_OK && status != LUA_YIELD) { /* error? */ - if (recover(L, status)) /* recover point? */ - status = luaD_rawrunprotected(L, unroll, NULL); /* run continuation */ - else { /* unrecoverable error */ - L->status = cast_byte(status); /* mark thread as `dead' */ - seterrorobj(L, status, L->top); - L->ci->top = L->top; - break; - } - } - lua_assert(status == L->status); - } - L->nny = oldnny; /* restore 'nny' */ - L->nCcalls--; - lua_assert(L->nCcalls == ((from) ? from->nCcalls : 0)); - lua_unlock(L); - return status; -} - - -LUA_API int lua_yieldk (lua_State *L, int nresults, int ctx, lua_CFunction k) { - CallInfo *ci = L->ci; - luai_userstateyield(L, nresults); - lua_lock(L); - api_checknelems(L, nresults); - if (L->nny > 0) { - if (L != G(L)->mainthread) - luaG_runerror(L, "attempt to yield across a C-call boundary"); - else - luaG_runerror(L, "attempt to yield from outside a coroutine"); - } - L->status = LUA_YIELD; - ci->extra = savestack(L, ci->func); /* save current 'func' */ - if (isLua(ci)) { /* inside a hook? */ - api_check(L, k == NULL, "hooks cannot continue after yielding"); - } - else { - if ((ci->u.c.k = k) != NULL) /* is there a continuation? */ - ci->u.c.ctx = ctx; /* save context */ - ci->func = L->top - nresults - 1; /* protect stack below results */ - luaD_throw(L, LUA_YIELD); - } - lua_assert(ci->callstatus & CIST_HOOKED); /* must be inside a hook */ - lua_unlock(L); - return 0; /* return to 'luaD_hook' */ -} - - -int luaD_pcall (lua_State *L, Pfunc func, void *u, - ptrdiff_t old_top, ptrdiff_t ef) { - int status; - CallInfo *old_ci = L->ci; - lu_byte old_allowhooks = L->allowhook; - unsigned short old_nny = L->nny; - ptrdiff_t old_errfunc = L->errfunc; - L->errfunc = ef; - status = luaD_rawrunprotected(L, func, u); - if (status != LUA_OK) { /* an error occurred? */ - StkId oldtop = restorestack(L, old_top); - luaF_close(L, oldtop); /* close possible pending closures */ - seterrorobj(L, status, oldtop); - L->ci = old_ci; - L->allowhook = old_allowhooks; - L->nny = old_nny; - luaD_shrinkstack(L); - } - L->errfunc = old_errfunc; - return status; -} - - - -/* -** Execute a protected parser. -*/ -struct SParser { /* data to `f_parser' */ - ZIO *z; - Mbuffer buff; /* dynamic structure used by the scanner */ - Dyndata dyd; /* dynamic structures used by the parser */ - const char *mode; - const char *name; -}; - - -static void checkmode (lua_State *L, const char *mode, const char *x) { - if (mode && strchr(mode, x[0]) == NULL) { - luaO_pushfstring(L, - "attempt to load a %s chunk (mode is " LUA_QS ")", x, mode); - luaD_throw(L, LUA_ERRSYNTAX); - } -} - - -static void f_parser (lua_State *L, void *ud) { - int i; - Closure *cl; - struct SParser *p = cast(struct SParser *, ud); - int c = zgetc(p->z); /* read first character */ - if (c == LUA_SIGNATURE[0]) { - checkmode(L, p->mode, "binary"); - cl = luaU_undump(L, p->z, &p->buff, p->name); - } - else { - checkmode(L, p->mode, "text"); - cl = luaY_parser(L, p->z, &p->buff, &p->dyd, p->name, c); - } - lua_assert(cl->l.nupvalues == cl->l.p->sizeupvalues); - for (i = 0; i < cl->l.nupvalues; i++) { /* initialize upvalues */ - UpVal *up = luaF_newupval(L); - cl->l.upvals[i] = up; - luaC_objbarrier(L, cl, up); - } -} - - -int luaD_protectedparser (lua_State *L, ZIO *z, const char *name, - const char *mode) { - struct SParser p; - int status; - L->nny++; /* cannot yield during parsing */ - p.z = z; p.name = name; p.mode = mode; - p.dyd.actvar.arr = NULL; p.dyd.actvar.size = 0; - p.dyd.gt.arr = NULL; p.dyd.gt.size = 0; - p.dyd.label.arr = NULL; p.dyd.label.size = 0; - luaZ_initbuffer(L, &p.buff); - status = luaD_pcall(L, f_parser, &p, savestack(L, L->top), L->errfunc); - luaZ_freebuffer(L, &p.buff); - luaM_freearray(L, p.dyd.actvar.arr, p.dyd.actvar.size); - luaM_freearray(L, p.dyd.gt.arr, p.dyd.gt.size); - luaM_freearray(L, p.dyd.label.arr, p.dyd.label.size); - L->nny--; - return status; -} - - diff --git a/Build/source/libs/lua52/lua52-src/src/ldo.h b/Build/source/libs/lua52/lua52-src/src/ldo.h deleted file mode 100644 index d3d3082c9ba..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ldo.h +++ /dev/null @@ -1,46 +0,0 @@ -/* -** $Id: ldo.h,v 2.20.1.1 2013/04/12 18:48:47 roberto Exp $ -** Stack and Call structure of Lua -** See Copyright Notice in lua.h -*/ - -#ifndef ldo_h -#define ldo_h - - -#include "lobject.h" -#include "lstate.h" -#include "lzio.h" - - -#define luaD_checkstack(L,n) if (L->stack_last - L->top <= (n)) \ - luaD_growstack(L, n); else condmovestack(L); - - -#define incr_top(L) {L->top++; luaD_checkstack(L,0);} - -#define savestack(L,p) ((char *)(p) - (char *)L->stack) -#define restorestack(L,n) ((TValue *)((char *)L->stack + (n))) - - -/* type of protected functions, to be ran by `runprotected' */ -typedef void (*Pfunc) (lua_State *L, void *ud); - -LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name, - const char *mode); -LUAI_FUNC void luaD_hook (lua_State *L, int event, int line); -LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults); -LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults, - int allowyield); -LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u, - ptrdiff_t oldtop, ptrdiff_t ef); -LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult); -LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize); -LUAI_FUNC void luaD_growstack (lua_State *L, int n); -LUAI_FUNC void luaD_shrinkstack (lua_State *L); - -LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode); -LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud); - -#endif - diff --git a/Build/source/libs/lua52/lua52-src/src/ldump.c b/Build/source/libs/lua52/lua52-src/src/ldump.c deleted file mode 100644 index 61fa2cd892d..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ldump.c +++ /dev/null @@ -1,173 +0,0 @@ -/* -** $Id: ldump.c,v 2.17.1.1 2013/04/12 18:48:47 roberto Exp $ -** save precompiled Lua chunks -** See Copyright Notice in lua.h -*/ - -#include <stddef.h> - -#define ldump_c -#define LUA_CORE - -#include "lua.h" - -#include "lobject.h" -#include "lstate.h" -#include "lundump.h" - -typedef struct { - lua_State* L; - lua_Writer writer; - void* data; - int strip; - int status; -} DumpState; - -#define DumpMem(b,n,size,D) DumpBlock(b,(n)*(size),D) -#define DumpVar(x,D) DumpMem(&x,1,sizeof(x),D) - -static void DumpBlock(const void* b, size_t size, DumpState* D) -{ - if (D->status==0) - { - lua_unlock(D->L); - D->status=(*D->writer)(D->L,b,size,D->data); - lua_lock(D->L); - } -} - -static void DumpChar(int y, DumpState* D) -{ - char x=(char)y; - DumpVar(x,D); -} - -static void DumpInt(int x, DumpState* D) -{ - DumpVar(x,D); -} - -static void DumpNumber(lua_Number x, DumpState* D) -{ - DumpVar(x,D); -} - -static void DumpVector(const void* b, int n, size_t size, DumpState* D) -{ - DumpInt(n,D); - DumpMem(b,n,size,D); -} - -static void DumpString(const TString* s, DumpState* D) -{ - if (s==NULL) - { - size_t size=0; - DumpVar(size,D); - } - else - { - size_t size=s->tsv.len+1; /* include trailing '\0' */ - DumpVar(size,D); - DumpBlock(getstr(s),size*sizeof(char),D); - } -} - -#define DumpCode(f,D) DumpVector(f->code,f->sizecode,sizeof(Instruction),D) - -static void DumpFunction(const Proto* f, DumpState* D); - -static void DumpConstants(const Proto* f, DumpState* D) -{ - int i,n=f->sizek; - DumpInt(n,D); - for (i=0; i<n; i++) - { - const TValue* o=&f->k[i]; - DumpChar(ttypenv(o),D); - switch (ttypenv(o)) - { - case LUA_TNIL: - break; - case LUA_TBOOLEAN: - DumpChar(bvalue(o),D); - break; - case LUA_TNUMBER: - DumpNumber(nvalue(o),D); - break; - case LUA_TSTRING: - DumpString(rawtsvalue(o),D); - break; - default: lua_assert(0); - } - } - n=f->sizep; - DumpInt(n,D); - for (i=0; i<n; i++) DumpFunction(f->p[i],D); -} - -static void DumpUpvalues(const Proto* f, DumpState* D) -{ - int i,n=f->sizeupvalues; - DumpInt(n,D); - for (i=0; i<n; i++) - { - DumpChar(f->upvalues[i].instack,D); - DumpChar(f->upvalues[i].idx,D); - } -} - -static void DumpDebug(const Proto* f, DumpState* D) -{ - int i,n; - DumpString((D->strip) ? NULL : f->source,D); - n= (D->strip) ? 0 : f->sizelineinfo; - DumpVector(f->lineinfo,n,sizeof(int),D); - n= (D->strip) ? 0 : f->sizelocvars; - DumpInt(n,D); - for (i=0; i<n; i++) - { - DumpString(f->locvars[i].varname,D); - DumpInt(f->locvars[i].startpc,D); - DumpInt(f->locvars[i].endpc,D); - } - n= (D->strip) ? 0 : f->sizeupvalues; - DumpInt(n,D); - for (i=0; i<n; i++) DumpString(f->upvalues[i].name,D); -} - -static void DumpFunction(const Proto* f, DumpState* D) -{ - DumpInt(f->linedefined,D); - DumpInt(f->lastlinedefined,D); - DumpChar(f->numparams,D); - DumpChar(f->is_vararg,D); - DumpChar(f->maxstacksize,D); - DumpCode(f,D); - DumpConstants(f,D); - DumpUpvalues(f,D); - DumpDebug(f,D); -} - -static void DumpHeader(DumpState* D) -{ - lu_byte h[LUAC_HEADERSIZE]; - luaU_header(h); - DumpBlock(h,LUAC_HEADERSIZE,D); -} - -/* -** dump Lua function as precompiled chunk -*/ -int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip) -{ - DumpState D; - D.L=L; - D.writer=w; - D.data=data; - D.strip=strip; - D.status=0; - DumpHeader(&D); - DumpFunction(f,&D); - return D.status; -} diff --git a/Build/source/libs/lua52/lua52-src/src/lfunc.c b/Build/source/libs/lua52/lua52-src/src/lfunc.c deleted file mode 100644 index e90e1520ce9..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lfunc.c +++ /dev/null @@ -1,161 +0,0 @@ -/* -** $Id: lfunc.c,v 2.30.1.1 2013/04/12 18:48:47 roberto Exp $ -** Auxiliary functions to manipulate prototypes and closures -** See Copyright Notice in lua.h -*/ - - -#include <stddef.h> - -#define lfunc_c -#define LUA_CORE - -#include "lua.h" - -#include "lfunc.h" -#include "lgc.h" -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" - - - -Closure *luaF_newCclosure (lua_State *L, int n) { - Closure *c = &luaC_newobj(L, LUA_TCCL, sizeCclosure(n), NULL, 0)->cl; - c->c.nupvalues = cast_byte(n); - return c; -} - - -Closure *luaF_newLclosure (lua_State *L, int n) { - Closure *c = &luaC_newobj(L, LUA_TLCL, sizeLclosure(n), NULL, 0)->cl; - c->l.p = NULL; - c->l.nupvalues = cast_byte(n); - while (n--) c->l.upvals[n] = NULL; - return c; -} - - -UpVal *luaF_newupval (lua_State *L) { - UpVal *uv = &luaC_newobj(L, LUA_TUPVAL, sizeof(UpVal), NULL, 0)->uv; - uv->v = &uv->u.value; - setnilvalue(uv->v); - return uv; -} - - -UpVal *luaF_findupval (lua_State *L, StkId level) { - global_State *g = G(L); - GCObject **pp = &L->openupval; - UpVal *p; - UpVal *uv; - while (*pp != NULL && (p = gco2uv(*pp))->v >= level) { - GCObject *o = obj2gco(p); - lua_assert(p->v != &p->u.value); - lua_assert(!isold(o) || isold(obj2gco(L))); - if (p->v == level) { /* found a corresponding upvalue? */ - if (isdead(g, o)) /* is it dead? */ - changewhite(o); /* resurrect it */ - return p; - } - pp = &p->next; - } - /* not found: create a new one */ - uv = &luaC_newobj(L, LUA_TUPVAL, sizeof(UpVal), pp, 0)->uv; - uv->v = level; /* current value lives in the stack */ - uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */ - uv->u.l.next = g->uvhead.u.l.next; - uv->u.l.next->u.l.prev = uv; - g->uvhead.u.l.next = uv; - lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv); - return uv; -} - - -static void unlinkupval (UpVal *uv) { - lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv); - uv->u.l.next->u.l.prev = uv->u.l.prev; /* remove from `uvhead' list */ - uv->u.l.prev->u.l.next = uv->u.l.next; -} - - -void luaF_freeupval (lua_State *L, UpVal *uv) { - if (uv->v != &uv->u.value) /* is it open? */ - unlinkupval(uv); /* remove from open list */ - luaM_free(L, uv); /* free upvalue */ -} - - -void luaF_close (lua_State *L, StkId level) { - UpVal *uv; - global_State *g = G(L); - while (L->openupval != NULL && (uv = gco2uv(L->openupval))->v >= level) { - GCObject *o = obj2gco(uv); - lua_assert(!isblack(o) && uv->v != &uv->u.value); - L->openupval = uv->next; /* remove from `open' list */ - if (isdead(g, o)) - luaF_freeupval(L, uv); /* free upvalue */ - else { - unlinkupval(uv); /* remove upvalue from 'uvhead' list */ - setobj(L, &uv->u.value, uv->v); /* move value to upvalue slot */ - uv->v = &uv->u.value; /* now current value lives here */ - gch(o)->next = g->allgc; /* link upvalue into 'allgc' list */ - g->allgc = o; - luaC_checkupvalcolor(g, uv); - } - } -} - - -Proto *luaF_newproto (lua_State *L) { - Proto *f = &luaC_newobj(L, LUA_TPROTO, sizeof(Proto), NULL, 0)->p; - f->k = NULL; - f->sizek = 0; - f->p = NULL; - f->sizep = 0; - f->code = NULL; - f->cache = NULL; - f->sizecode = 0; - f->lineinfo = NULL; - f->sizelineinfo = 0; - f->upvalues = NULL; - f->sizeupvalues = 0; - f->numparams = 0; - f->is_vararg = 0; - f->maxstacksize = 0; - f->locvars = NULL; - f->sizelocvars = 0; - f->linedefined = 0; - f->lastlinedefined = 0; - f->source = NULL; - return f; -} - - -void luaF_freeproto (lua_State *L, Proto *f) { - luaM_freearray(L, f->code, f->sizecode); - luaM_freearray(L, f->p, f->sizep); - luaM_freearray(L, f->k, f->sizek); - luaM_freearray(L, f->lineinfo, f->sizelineinfo); - luaM_freearray(L, f->locvars, f->sizelocvars); - luaM_freearray(L, f->upvalues, f->sizeupvalues); - luaM_free(L, f); -} - - -/* -** Look for n-th local variable at line `line' in function `func'. -** Returns NULL if not found. -*/ -const char *luaF_getlocalname (const Proto *f, int local_number, int pc) { - int i; - for (i = 0; i<f->sizelocvars && f->locvars[i].startpc <= pc; i++) { - if (pc < f->locvars[i].endpc) { /* is variable active? */ - local_number--; - if (local_number == 0) - return getstr(f->locvars[i].varname); - } - } - return NULL; /* not found */ -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lfunc.h b/Build/source/libs/lua52/lua52-src/src/lfunc.h deleted file mode 100644 index ca0d3a3e0b0..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lfunc.h +++ /dev/null @@ -1,33 +0,0 @@ -/* -** $Id: lfunc.h,v 2.8.1.1 2013/04/12 18:48:47 roberto Exp $ -** Auxiliary functions to manipulate prototypes and closures -** See Copyright Notice in lua.h -*/ - -#ifndef lfunc_h -#define lfunc_h - - -#include "lobject.h" - - -#define sizeCclosure(n) (cast(int, sizeof(CClosure)) + \ - cast(int, sizeof(TValue)*((n)-1))) - -#define sizeLclosure(n) (cast(int, sizeof(LClosure)) + \ - cast(int, sizeof(TValue *)*((n)-1))) - - -LUAI_FUNC Proto *luaF_newproto (lua_State *L); -LUAI_FUNC Closure *luaF_newCclosure (lua_State *L, int nelems); -LUAI_FUNC Closure *luaF_newLclosure (lua_State *L, int nelems); -LUAI_FUNC UpVal *luaF_newupval (lua_State *L); -LUAI_FUNC UpVal *luaF_findupval (lua_State *L, StkId level); -LUAI_FUNC void luaF_close (lua_State *L, StkId level); -LUAI_FUNC void luaF_freeproto (lua_State *L, Proto *f); -LUAI_FUNC void luaF_freeupval (lua_State *L, UpVal *uv); -LUAI_FUNC const char *luaF_getlocalname (const Proto *func, int local_number, - int pc); - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lgc.c b/Build/source/libs/lua52/lua52-src/src/lgc.c deleted file mode 100644 index 553fd1774ed..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lgc.c +++ /dev/null @@ -1,1220 +0,0 @@ -/* -** $Id: lgc.c,v 2.140.1.3 2014/09/01 16:55:08 roberto Exp $ -** Garbage Collector -** See Copyright Notice in lua.h -*/ - -#include <string.h> - -#define lgc_c -#define LUA_CORE - -#include "lua.h" - -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lgc.h" -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" - - - -/* -** cost of sweeping one element (the size of a small object divided -** by some adjust for the sweep speed) -*/ -#define GCSWEEPCOST ((sizeof(TString) + 4) / 4) - -/* maximum number of elements to sweep in each single step */ -#define GCSWEEPMAX (cast_int((GCSTEPSIZE / GCSWEEPCOST) / 4)) - -/* maximum number of finalizers to call in each GC step */ -#define GCFINALIZENUM 4 - - -/* -** macro to adjust 'stepmul': 'stepmul' is actually used like -** 'stepmul / STEPMULADJ' (value chosen by tests) -*/ -#define STEPMULADJ 200 - - -/* -** macro to adjust 'pause': 'pause' is actually used like -** 'pause / PAUSEADJ' (value chosen by tests) -*/ -#define PAUSEADJ 100 - - -/* -** 'makewhite' erases all color bits plus the old bit and then -** sets only the current white bit -*/ -#define maskcolors (~(bit2mask(BLACKBIT, OLDBIT) | WHITEBITS)) -#define makewhite(g,x) \ - (gch(x)->marked = cast_byte((gch(x)->marked & maskcolors) | luaC_white(g))) - -#define white2gray(x) resetbits(gch(x)->marked, WHITEBITS) -#define black2gray(x) resetbit(gch(x)->marked, BLACKBIT) - - -#define isfinalized(x) testbit(gch(x)->marked, FINALIZEDBIT) - -#define checkdeadkey(n) lua_assert(!ttisdeadkey(gkey(n)) || ttisnil(gval(n))) - - -#define checkconsistency(obj) \ - lua_longassert(!iscollectable(obj) || righttt(obj)) - - -#define markvalue(g,o) { checkconsistency(o); \ - if (valiswhite(o)) reallymarkobject(g,gcvalue(o)); } - -#define markobject(g,t) { if ((t) && iswhite(obj2gco(t))) \ - reallymarkobject(g, obj2gco(t)); } - -static void reallymarkobject (global_State *g, GCObject *o); - - -/* -** {====================================================== -** Generic functions -** ======================================================= -*/ - - -/* -** one after last element in a hash array -*/ -#define gnodelast(h) gnode(h, cast(size_t, sizenode(h))) - - -/* -** link table 'h' into list pointed by 'p' -*/ -#define linktable(h,p) ((h)->gclist = *(p), *(p) = obj2gco(h)) - - -/* -** if key is not marked, mark its entry as dead (therefore removing it -** from the table) -*/ -static void removeentry (Node *n) { - lua_assert(ttisnil(gval(n))); - if (valiswhite(gkey(n))) - setdeadvalue(gkey(n)); /* unused and unmarked key; remove it */ -} - - -/* -** tells whether a key or value can be cleared from a weak -** table. Non-collectable objects are never removed from weak -** tables. Strings behave as `values', so are never removed too. for -** other objects: if really collected, cannot keep them; for objects -** being finalized, keep them in keys, but not in values -*/ -static int iscleared (global_State *g, const TValue *o) { - if (!iscollectable(o)) return 0; - else if (ttisstring(o)) { - markobject(g, rawtsvalue(o)); /* strings are `values', so are never weak */ - return 0; - } - else return iswhite(gcvalue(o)); -} - - -/* -** barrier that moves collector forward, that is, mark the white object -** being pointed by a black object. -*/ -void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v) { - global_State *g = G(L); - lua_assert(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o)); - lua_assert(g->gcstate != GCSpause); - lua_assert(gch(o)->tt != LUA_TTABLE); - if (keepinvariantout(g)) /* must keep invariant? */ - reallymarkobject(g, v); /* restore invariant */ - else { /* sweep phase */ - lua_assert(issweepphase(g)); - makewhite(g, o); /* mark main obj. as white to avoid other barriers */ - } -} - - -/* -** barrier that moves collector backward, that is, mark the black object -** pointing to a white object as gray again. (Current implementation -** only works for tables; access to 'gclist' is not uniform across -** different types.) -*/ -void luaC_barrierback_ (lua_State *L, GCObject *o) { - global_State *g = G(L); - lua_assert(isblack(o) && !isdead(g, o) && gch(o)->tt == LUA_TTABLE); - black2gray(o); /* make object gray (again) */ - gco2t(o)->gclist = g->grayagain; - g->grayagain = o; -} - - -/* -** barrier for prototypes. When creating first closure (cache is -** NULL), use a forward barrier; this may be the only closure of the -** prototype (if it is a "regular" function, with a single instance) -** and the prototype may be big, so it is better to avoid traversing -** it again. Otherwise, use a backward barrier, to avoid marking all -** possible instances. -*/ -LUAI_FUNC void luaC_barrierproto_ (lua_State *L, Proto *p, Closure *c) { - global_State *g = G(L); - lua_assert(isblack(obj2gco(p))); - if (p->cache == NULL) { /* first time? */ - luaC_objbarrier(L, p, c); - } - else { /* use a backward barrier */ - black2gray(obj2gco(p)); /* make prototype gray (again) */ - p->gclist = g->grayagain; - g->grayagain = obj2gco(p); - } -} - - -/* -** check color (and invariants) for an upvalue that was closed, -** i.e., moved into the 'allgc' list -*/ -void luaC_checkupvalcolor (global_State *g, UpVal *uv) { - GCObject *o = obj2gco(uv); - lua_assert(!isblack(o)); /* open upvalues are never black */ - if (isgray(o)) { - if (keepinvariant(g)) { - resetoldbit(o); /* see MOVE OLD rule */ - gray2black(o); /* it is being visited now */ - markvalue(g, uv->v); - } - else { - lua_assert(issweepphase(g)); - makewhite(g, o); - } - } -} - - -/* -** create a new collectable object (with given type and size) and link -** it to '*list'. 'offset' tells how many bytes to allocate before the -** object itself (used only by states). -*/ -GCObject *luaC_newobj (lua_State *L, int tt, size_t sz, GCObject **list, - int offset) { - global_State *g = G(L); - char *raw = cast(char *, luaM_newobject(L, novariant(tt), sz)); - GCObject *o = obj2gco(raw + offset); - if (list == NULL) - list = &g->allgc; /* standard list for collectable objects */ - gch(o)->marked = luaC_white(g); - gch(o)->tt = tt; - gch(o)->next = *list; - *list = o; - return o; -} - -/* }====================================================== */ - - - -/* -** {====================================================== -** Mark functions -** ======================================================= -*/ - - -/* -** mark an object. Userdata, strings, and closed upvalues are visited -** and turned black here. Other objects are marked gray and added -** to appropriate list to be visited (and turned black) later. (Open -** upvalues are already linked in 'headuv' list.) -*/ -static void reallymarkobject (global_State *g, GCObject *o) { - lu_mem size; - white2gray(o); - switch (gch(o)->tt) { - case LUA_TSHRSTR: - case LUA_TLNGSTR: { - size = sizestring(gco2ts(o)); - break; /* nothing else to mark; make it black */ - } - case LUA_TUSERDATA: { - Table *mt = gco2u(o)->metatable; - markobject(g, mt); - markobject(g, gco2u(o)->env); - size = sizeudata(gco2u(o)); - break; - } - case LUA_TUPVAL: { - UpVal *uv = gco2uv(o); - markvalue(g, uv->v); - if (uv->v != &uv->u.value) /* open? */ - return; /* open upvalues remain gray */ - size = sizeof(UpVal); - break; - } - case LUA_TLCL: { - gco2lcl(o)->gclist = g->gray; - g->gray = o; - return; - } - case LUA_TCCL: { - gco2ccl(o)->gclist = g->gray; - g->gray = o; - return; - } - case LUA_TTABLE: { - linktable(gco2t(o), &g->gray); - return; - } - case LUA_TTHREAD: { - gco2th(o)->gclist = g->gray; - g->gray = o; - return; - } - case LUA_TPROTO: { - gco2p(o)->gclist = g->gray; - g->gray = o; - return; - } - default: lua_assert(0); return; - } - gray2black(o); - g->GCmemtrav += size; -} - - -/* -** mark metamethods for basic types -*/ -static void markmt (global_State *g) { - int i; - for (i=0; i < LUA_NUMTAGS; i++) - markobject(g, g->mt[i]); -} - - -/* -** mark all objects in list of being-finalized -*/ -static void markbeingfnz (global_State *g) { - GCObject *o; - for (o = g->tobefnz; o != NULL; o = gch(o)->next) { - makewhite(g, o); - reallymarkobject(g, o); - } -} - - -/* -** mark all values stored in marked open upvalues. (See comment in -** 'lstate.h'.) -*/ -static void remarkupvals (global_State *g) { - UpVal *uv; - for (uv = g->uvhead.u.l.next; uv != &g->uvhead; uv = uv->u.l.next) { - if (isgray(obj2gco(uv))) - markvalue(g, uv->v); - } -} - - -/* -** mark root set and reset all gray lists, to start a new -** incremental (or full) collection -*/ -static void restartcollection (global_State *g) { - g->gray = g->grayagain = NULL; - g->weak = g->allweak = g->ephemeron = NULL; - markobject(g, g->mainthread); - markvalue(g, &g->l_registry); - markmt(g); - markbeingfnz(g); /* mark any finalizing object left from previous cycle */ -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Traverse functions -** ======================================================= -*/ - -static void traverseweakvalue (global_State *g, Table *h) { - Node *n, *limit = gnodelast(h); - /* if there is array part, assume it may have white values (do not - traverse it just to check) */ - int hasclears = (h->sizearray > 0); - for (n = gnode(h, 0); n < limit; n++) { - checkdeadkey(n); - if (ttisnil(gval(n))) /* entry is empty? */ - removeentry(n); /* remove it */ - else { - lua_assert(!ttisnil(gkey(n))); - markvalue(g, gkey(n)); /* mark key */ - if (!hasclears && iscleared(g, gval(n))) /* is there a white value? */ - hasclears = 1; /* table will have to be cleared */ - } - } - if (hasclears) - linktable(h, &g->weak); /* has to be cleared later */ - else /* no white values */ - linktable(h, &g->grayagain); /* no need to clean */ -} - - -static int traverseephemeron (global_State *g, Table *h) { - int marked = 0; /* true if an object is marked in this traversal */ - int hasclears = 0; /* true if table has white keys */ - int prop = 0; /* true if table has entry "white-key -> white-value" */ - Node *n, *limit = gnodelast(h); - int i; - /* traverse array part (numeric keys are 'strong') */ - for (i = 0; i < h->sizearray; i++) { - if (valiswhite(&h->array[i])) { - marked = 1; - reallymarkobject(g, gcvalue(&h->array[i])); - } - } - /* traverse hash part */ - for (n = gnode(h, 0); n < limit; n++) { - checkdeadkey(n); - if (ttisnil(gval(n))) /* entry is empty? */ - removeentry(n); /* remove it */ - else if (iscleared(g, gkey(n))) { /* key is not marked (yet)? */ - hasclears = 1; /* table must be cleared */ - if (valiswhite(gval(n))) /* value not marked yet? */ - prop = 1; /* must propagate again */ - } - else if (valiswhite(gval(n))) { /* value not marked yet? */ - marked = 1; - reallymarkobject(g, gcvalue(gval(n))); /* mark it now */ - } - } - if (g->gcstate != GCSatomic || prop) - linktable(h, &g->ephemeron); /* have to propagate again */ - else if (hasclears) /* does table have white keys? */ - linktable(h, &g->allweak); /* may have to clean white keys */ - else /* no white keys */ - linktable(h, &g->grayagain); /* no need to clean */ - return marked; -} - - -static void traversestrongtable (global_State *g, Table *h) { - Node *n, *limit = gnodelast(h); - int i; - for (i = 0; i < h->sizearray; i++) /* traverse array part */ - markvalue(g, &h->array[i]); - for (n = gnode(h, 0); n < limit; n++) { /* traverse hash part */ - checkdeadkey(n); - if (ttisnil(gval(n))) /* entry is empty? */ - removeentry(n); /* remove it */ - else { - lua_assert(!ttisnil(gkey(n))); - markvalue(g, gkey(n)); /* mark key */ - markvalue(g, gval(n)); /* mark value */ - } - } -} - - -static lu_mem traversetable (global_State *g, Table *h) { - const char *weakkey, *weakvalue; - const TValue *mode = gfasttm(g, h->metatable, TM_MODE); - markobject(g, h->metatable); - if (mode && ttisstring(mode) && /* is there a weak mode? */ - ((weakkey = strchr(svalue(mode), 'k')), - (weakvalue = strchr(svalue(mode), 'v')), - (weakkey || weakvalue))) { /* is really weak? */ - black2gray(obj2gco(h)); /* keep table gray */ - if (!weakkey) /* strong keys? */ - traverseweakvalue(g, h); - else if (!weakvalue) /* strong values? */ - traverseephemeron(g, h); - else /* all weak */ - linktable(h, &g->allweak); /* nothing to traverse now */ - } - else /* not weak */ - traversestrongtable(g, h); - return sizeof(Table) + sizeof(TValue) * h->sizearray + - sizeof(Node) * cast(size_t, sizenode(h)); -} - - -static int traverseproto (global_State *g, Proto *f) { - int i; - if (f->cache && iswhite(obj2gco(f->cache))) - f->cache = NULL; /* allow cache to be collected */ - markobject(g, f->source); - for (i = 0; i < f->sizek; i++) /* mark literals */ - markvalue(g, &f->k[i]); - for (i = 0; i < f->sizeupvalues; i++) /* mark upvalue names */ - markobject(g, f->upvalues[i].name); - for (i = 0; i < f->sizep; i++) /* mark nested protos */ - markobject(g, f->p[i]); - for (i = 0; i < f->sizelocvars; i++) /* mark local-variable names */ - markobject(g, f->locvars[i].varname); - return sizeof(Proto) + sizeof(Instruction) * f->sizecode + - sizeof(Proto *) * f->sizep + - sizeof(TValue) * f->sizek + - sizeof(int) * f->sizelineinfo + - sizeof(LocVar) * f->sizelocvars + - sizeof(Upvaldesc) * f->sizeupvalues; -} - - -static lu_mem traverseCclosure (global_State *g, CClosure *cl) { - int i; - for (i = 0; i < cl->nupvalues; i++) /* mark its upvalues */ - markvalue(g, &cl->upvalue[i]); - return sizeCclosure(cl->nupvalues); -} - -static lu_mem traverseLclosure (global_State *g, LClosure *cl) { - int i; - markobject(g, cl->p); /* mark its prototype */ - for (i = 0; i < cl->nupvalues; i++) /* mark its upvalues */ - markobject(g, cl->upvals[i]); - return sizeLclosure(cl->nupvalues); -} - - -static lu_mem traversestack (global_State *g, lua_State *th) { - int n = 0; - StkId o = th->stack; - if (o == NULL) - return 1; /* stack not completely built yet */ - for (; o < th->top; o++) /* mark live elements in the stack */ - markvalue(g, o); - if (g->gcstate == GCSatomic) { /* final traversal? */ - StkId lim = th->stack + th->stacksize; /* real end of stack */ - for (; o < lim; o++) /* clear not-marked stack slice */ - setnilvalue(o); - } - else { /* count call infos to compute size */ - CallInfo *ci; - for (ci = &th->base_ci; ci != th->ci; ci = ci->next) - n++; - } - return sizeof(lua_State) + sizeof(TValue) * th->stacksize + - sizeof(CallInfo) * n; -} - - -/* -** traverse one gray object, turning it to black (except for threads, -** which are always gray). -*/ -static void propagatemark (global_State *g) { - lu_mem size; - GCObject *o = g->gray; - lua_assert(isgray(o)); - gray2black(o); - switch (gch(o)->tt) { - case LUA_TTABLE: { - Table *h = gco2t(o); - g->gray = h->gclist; /* remove from 'gray' list */ - size = traversetable(g, h); - break; - } - case LUA_TLCL: { - LClosure *cl = gco2lcl(o); - g->gray = cl->gclist; /* remove from 'gray' list */ - size = traverseLclosure(g, cl); - break; - } - case LUA_TCCL: { - CClosure *cl = gco2ccl(o); - g->gray = cl->gclist; /* remove from 'gray' list */ - size = traverseCclosure(g, cl); - break; - } - case LUA_TTHREAD: { - lua_State *th = gco2th(o); - g->gray = th->gclist; /* remove from 'gray' list */ - th->gclist = g->grayagain; - g->grayagain = o; /* insert into 'grayagain' list */ - black2gray(o); - size = traversestack(g, th); - break; - } - case LUA_TPROTO: { - Proto *p = gco2p(o); - g->gray = p->gclist; /* remove from 'gray' list */ - size = traverseproto(g, p); - break; - } - default: lua_assert(0); return; - } - g->GCmemtrav += size; -} - - -static void propagateall (global_State *g) { - while (g->gray) propagatemark(g); -} - - -static void propagatelist (global_State *g, GCObject *l) { - lua_assert(g->gray == NULL); /* no grays left */ - g->gray = l; - propagateall(g); /* traverse all elements from 'l' */ -} - -/* -** retraverse all gray lists. Because tables may be reinserted in other -** lists when traversed, traverse the original lists to avoid traversing -** twice the same table (which is not wrong, but inefficient) -*/ -static void retraversegrays (global_State *g) { - GCObject *weak = g->weak; /* save original lists */ - GCObject *grayagain = g->grayagain; - GCObject *ephemeron = g->ephemeron; - g->weak = g->grayagain = g->ephemeron = NULL; - propagateall(g); /* traverse main gray list */ - propagatelist(g, grayagain); - propagatelist(g, weak); - propagatelist(g, ephemeron); -} - - -static void convergeephemerons (global_State *g) { - int changed; - do { - GCObject *w; - GCObject *next = g->ephemeron; /* get ephemeron list */ - g->ephemeron = NULL; /* tables will return to this list when traversed */ - changed = 0; - while ((w = next) != NULL) { - next = gco2t(w)->gclist; - if (traverseephemeron(g, gco2t(w))) { /* traverse marked some value? */ - propagateall(g); /* propagate changes */ - changed = 1; /* will have to revisit all ephemeron tables */ - } - } - } while (changed); -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Sweep Functions -** ======================================================= -*/ - - -/* -** clear entries with unmarked keys from all weaktables in list 'l' up -** to element 'f' -*/ -static void clearkeys (global_State *g, GCObject *l, GCObject *f) { - for (; l != f; l = gco2t(l)->gclist) { - Table *h = gco2t(l); - Node *n, *limit = gnodelast(h); - for (n = gnode(h, 0); n < limit; n++) { - if (!ttisnil(gval(n)) && (iscleared(g, gkey(n)))) { - setnilvalue(gval(n)); /* remove value ... */ - removeentry(n); /* and remove entry from table */ - } - } - } -} - - -/* -** clear entries with unmarked values from all weaktables in list 'l' up -** to element 'f' -*/ -static void clearvalues (global_State *g, GCObject *l, GCObject *f) { - for (; l != f; l = gco2t(l)->gclist) { - Table *h = gco2t(l); - Node *n, *limit = gnodelast(h); - int i; - for (i = 0; i < h->sizearray; i++) { - TValue *o = &h->array[i]; - if (iscleared(g, o)) /* value was collected? */ - setnilvalue(o); /* remove value */ - } - for (n = gnode(h, 0); n < limit; n++) { - if (!ttisnil(gval(n)) && iscleared(g, gval(n))) { - setnilvalue(gval(n)); /* remove value ... */ - removeentry(n); /* and remove entry from table */ - } - } - } -} - - -static void freeobj (lua_State *L, GCObject *o) { - switch (gch(o)->tt) { - case LUA_TPROTO: luaF_freeproto(L, gco2p(o)); break; - case LUA_TLCL: { - luaM_freemem(L, o, sizeLclosure(gco2lcl(o)->nupvalues)); - break; - } - case LUA_TCCL: { - luaM_freemem(L, o, sizeCclosure(gco2ccl(o)->nupvalues)); - break; - } - case LUA_TUPVAL: luaF_freeupval(L, gco2uv(o)); break; - case LUA_TTABLE: luaH_free(L, gco2t(o)); break; - case LUA_TTHREAD: luaE_freethread(L, gco2th(o)); break; - case LUA_TUSERDATA: luaM_freemem(L, o, sizeudata(gco2u(o))); break; - case LUA_TSHRSTR: - G(L)->strt.nuse--; - /* go through */ - case LUA_TLNGSTR: { - luaM_freemem(L, o, sizestring(gco2ts(o))); - break; - } - default: lua_assert(0); - } -} - - -#define sweepwholelist(L,p) sweeplist(L,p,MAX_LUMEM) -static GCObject **sweeplist (lua_State *L, GCObject **p, lu_mem count); - - -/* -** sweep the (open) upvalues of a thread and resize its stack and -** list of call-info structures. -*/ -static void sweepthread (lua_State *L, lua_State *L1) { - if (L1->stack == NULL) return; /* stack not completely built yet */ - sweepwholelist(L, &L1->openupval); /* sweep open upvalues */ - luaE_freeCI(L1); /* free extra CallInfo slots */ - /* should not change the stack during an emergency gc cycle */ - if (G(L)->gckind != KGC_EMERGENCY) - luaD_shrinkstack(L1); -} - - -/* -** sweep at most 'count' elements from a list of GCObjects erasing dead -** objects, where a dead (not alive) object is one marked with the "old" -** (non current) white and not fixed. -** In non-generational mode, change all non-dead objects back to white, -** preparing for next collection cycle. -** In generational mode, keep black objects black, and also mark them as -** old; stop when hitting an old object, as all objects after that -** one will be old too. -** When object is a thread, sweep its list of open upvalues too. -*/ -static GCObject **sweeplist (lua_State *L, GCObject **p, lu_mem count) { - global_State *g = G(L); - int ow = otherwhite(g); - int toclear, toset; /* bits to clear and to set in all live objects */ - int tostop; /* stop sweep when this is true */ - if (isgenerational(g)) { /* generational mode? */ - toclear = ~0; /* clear nothing */ - toset = bitmask(OLDBIT); /* set the old bit of all surviving objects */ - tostop = bitmask(OLDBIT); /* do not sweep old generation */ - } - else { /* normal mode */ - toclear = maskcolors; /* clear all color bits + old bit */ - toset = luaC_white(g); /* make object white */ - tostop = 0; /* do not stop */ - } - while (*p != NULL && count-- > 0) { - GCObject *curr = *p; - int marked = gch(curr)->marked; - if (isdeadm(ow, marked)) { /* is 'curr' dead? */ - *p = gch(curr)->next; /* remove 'curr' from list */ - freeobj(L, curr); /* erase 'curr' */ - } - else { - if (testbits(marked, tostop)) - return NULL; /* stop sweeping this list */ - if (gch(curr)->tt == LUA_TTHREAD) - sweepthread(L, gco2th(curr)); /* sweep thread's upvalues */ - /* update marks */ - gch(curr)->marked = cast_byte((marked & toclear) | toset); - p = &gch(curr)->next; /* go to next element */ - } - } - return (*p == NULL) ? NULL : p; -} - - -/* -** sweep a list until a live object (or end of list) -*/ -static GCObject **sweeptolive (lua_State *L, GCObject **p, int *n) { - GCObject ** old = p; - int i = 0; - do { - i++; - p = sweeplist(L, p, 1); - } while (p == old); - if (n) *n += i; - return p; -} - -/* }====================================================== */ - - -/* -** {====================================================== -** Finalization -** ======================================================= -*/ - -static void checkSizes (lua_State *L) { - global_State *g = G(L); - if (g->gckind != KGC_EMERGENCY) { /* do not change sizes in emergency */ - int hs = g->strt.size / 2; /* half the size of the string table */ - if (g->strt.nuse < cast(lu_int32, hs)) /* using less than that half? */ - luaS_resize(L, hs); /* halve its size */ - luaZ_freebuffer(L, &g->buff); /* free concatenation buffer */ - } -} - - -static GCObject *udata2finalize (global_State *g) { - GCObject *o = g->tobefnz; /* get first element */ - lua_assert(isfinalized(o)); - g->tobefnz = gch(o)->next; /* remove it from 'tobefnz' list */ - gch(o)->next = g->allgc; /* return it to 'allgc' list */ - g->allgc = o; - resetbit(gch(o)->marked, SEPARATED); /* mark that it is not in 'tobefnz' */ - lua_assert(!isold(o)); /* see MOVE OLD rule */ - if (!keepinvariantout(g)) /* not keeping invariant? */ - makewhite(g, o); /* "sweep" object */ - return o; -} - - -static void dothecall (lua_State *L, void *ud) { - UNUSED(ud); - luaD_call(L, L->top - 2, 0, 0); -} - - -static void GCTM (lua_State *L, int propagateerrors) { - global_State *g = G(L); - const TValue *tm; - TValue v; - setgcovalue(L, &v, udata2finalize(g)); - tm = luaT_gettmbyobj(L, &v, TM_GC); - if (tm != NULL && ttisfunction(tm)) { /* is there a finalizer? */ - int status; - lu_byte oldah = L->allowhook; - int running = g->gcrunning; - L->allowhook = 0; /* stop debug hooks during GC metamethod */ - g->gcrunning = 0; /* avoid GC steps */ - setobj2s(L, L->top, tm); /* push finalizer... */ - setobj2s(L, L->top + 1, &v); /* ... and its argument */ - L->top += 2; /* and (next line) call the finalizer */ - status = luaD_pcall(L, dothecall, NULL, savestack(L, L->top - 2), 0); - L->allowhook = oldah; /* restore hooks */ - g->gcrunning = running; /* restore state */ - if (status != LUA_OK && propagateerrors) { /* error while running __gc? */ - if (status == LUA_ERRRUN) { /* is there an error object? */ - const char *msg = (ttisstring(L->top - 1)) - ? svalue(L->top - 1) - : "no message"; - luaO_pushfstring(L, "error in __gc metamethod (%s)", msg); - status = LUA_ERRGCMM; /* error in __gc metamethod */ - } - luaD_throw(L, status); /* re-throw error */ - } - } -} - - -/* -** move all unreachable objects (or 'all' objects) that need -** finalization from list 'finobj' to list 'tobefnz' (to be finalized) -*/ -static void separatetobefnz (lua_State *L, int all) { - global_State *g = G(L); - GCObject **p = &g->finobj; - GCObject *curr; - GCObject **lastnext = &g->tobefnz; - /* find last 'next' field in 'tobefnz' list (to add elements in its end) */ - while (*lastnext != NULL) - lastnext = &gch(*lastnext)->next; - while ((curr = *p) != NULL) { /* traverse all finalizable objects */ - lua_assert(!isfinalized(curr)); - lua_assert(testbit(gch(curr)->marked, SEPARATED)); - if (!(iswhite(curr) || all)) /* not being collected? */ - p = &gch(curr)->next; /* don't bother with it */ - else { - l_setbit(gch(curr)->marked, FINALIZEDBIT); /* won't be finalized again */ - *p = gch(curr)->next; /* remove 'curr' from 'finobj' list */ - gch(curr)->next = *lastnext; /* link at the end of 'tobefnz' list */ - *lastnext = curr; - lastnext = &gch(curr)->next; - } - } -} - - -/* -** if object 'o' has a finalizer, remove it from 'allgc' list (must -** search the list to find it) and link it in 'finobj' list. -*/ -void luaC_checkfinalizer (lua_State *L, GCObject *o, Table *mt) { - global_State *g = G(L); - if (testbit(gch(o)->marked, SEPARATED) || /* obj. is already separated... */ - isfinalized(o) || /* ... or is finalized... */ - gfasttm(g, mt, TM_GC) == NULL) /* or has no finalizer? */ - return; /* nothing to be done */ - else { /* move 'o' to 'finobj' list */ - GCObject **p; - GCheader *ho = gch(o); - if (g->sweepgc == &ho->next) { /* avoid removing current sweep object */ - lua_assert(issweepphase(g)); - g->sweepgc = sweeptolive(L, g->sweepgc, NULL); - } - /* search for pointer pointing to 'o' */ - for (p = &g->allgc; *p != o; p = &gch(*p)->next) { /* empty */ } - *p = ho->next; /* remove 'o' from root list */ - ho->next = g->finobj; /* link it in list 'finobj' */ - g->finobj = o; - l_setbit(ho->marked, SEPARATED); /* mark it as such */ - if (!keepinvariantout(g)) /* not keeping invariant? */ - makewhite(g, o); /* "sweep" object */ - else - resetoldbit(o); /* see MOVE OLD rule */ - } -} - -/* }====================================================== */ - - -/* -** {====================================================== -** GC control -** ======================================================= -*/ - - -/* -** set a reasonable "time" to wait before starting a new GC cycle; -** cycle will start when memory use hits threshold -*/ -static void setpause (global_State *g, l_mem estimate) { - l_mem debt, threshold; - estimate = estimate / PAUSEADJ; /* adjust 'estimate' */ - threshold = (g->gcpause < MAX_LMEM / estimate) /* overflow? */ - ? estimate * g->gcpause /* no overflow */ - : MAX_LMEM; /* overflow; truncate to maximum */ - debt = -cast(l_mem, threshold - gettotalbytes(g)); - luaE_setdebt(g, debt); -} - - -#define sweepphases \ - (bitmask(GCSsweepstring) | bitmask(GCSsweepudata) | bitmask(GCSsweep)) - - -/* -** enter first sweep phase (strings) and prepare pointers for other -** sweep phases. The calls to 'sweeptolive' make pointers point to an -** object inside the list (instead of to the header), so that the real -** sweep do not need to skip objects created between "now" and the start -** of the real sweep. -** Returns how many objects it swept. -*/ -static int entersweep (lua_State *L) { - global_State *g = G(L); - int n = 0; - g->gcstate = GCSsweepstring; - lua_assert(g->sweepgc == NULL && g->sweepfin == NULL); - /* prepare to sweep strings, finalizable objects, and regular objects */ - g->sweepstrgc = 0; - g->sweepfin = sweeptolive(L, &g->finobj, &n); - g->sweepgc = sweeptolive(L, &g->allgc, &n); - return n; -} - - -/* -** change GC mode -*/ -void luaC_changemode (lua_State *L, int mode) { - global_State *g = G(L); - if (mode == g->gckind) return; /* nothing to change */ - if (mode == KGC_GEN) { /* change to generational mode */ - /* make sure gray lists are consistent */ - luaC_runtilstate(L, bitmask(GCSpropagate)); - g->GCestimate = gettotalbytes(g); - g->gckind = KGC_GEN; - } - else { /* change to incremental mode */ - /* sweep all objects to turn them back to white - (as white has not changed, nothing extra will be collected) */ - g->gckind = KGC_NORMAL; - entersweep(L); - luaC_runtilstate(L, ~sweepphases); - } -} - - -/* -** call all pending finalizers -*/ -static void callallpendingfinalizers (lua_State *L, int propagateerrors) { - global_State *g = G(L); - while (g->tobefnz) { - resetoldbit(g->tobefnz); - GCTM(L, propagateerrors); - } -} - - -void luaC_freeallobjects (lua_State *L) { - global_State *g = G(L); - int i; - separatetobefnz(L, 1); /* separate all objects with finalizers */ - lua_assert(g->finobj == NULL); - callallpendingfinalizers(L, 0); - g->currentwhite = WHITEBITS; /* this "white" makes all objects look dead */ - g->gckind = KGC_NORMAL; - sweepwholelist(L, &g->finobj); /* finalizers can create objs. in 'finobj' */ - sweepwholelist(L, &g->allgc); - for (i = 0; i < g->strt.size; i++) /* free all string lists */ - sweepwholelist(L, &g->strt.hash[i]); - lua_assert(g->strt.nuse == 0); -} - - -static l_mem atomic (lua_State *L) { - global_State *g = G(L); - l_mem work = -cast(l_mem, g->GCmemtrav); /* start counting work */ - GCObject *origweak, *origall; - lua_assert(!iswhite(obj2gco(g->mainthread))); - markobject(g, L); /* mark running thread */ - /* registry and global metatables may be changed by API */ - markvalue(g, &g->l_registry); - markmt(g); /* mark basic metatables */ - /* remark occasional upvalues of (maybe) dead threads */ - remarkupvals(g); - propagateall(g); /* propagate changes */ - work += g->GCmemtrav; /* stop counting (do not (re)count grays) */ - /* traverse objects caught by write barrier and by 'remarkupvals' */ - retraversegrays(g); - work -= g->GCmemtrav; /* restart counting */ - convergeephemerons(g); - /* at this point, all strongly accessible objects are marked. */ - /* clear values from weak tables, before checking finalizers */ - clearvalues(g, g->weak, NULL); - clearvalues(g, g->allweak, NULL); - origweak = g->weak; origall = g->allweak; - work += g->GCmemtrav; /* stop counting (objects being finalized) */ - separatetobefnz(L, 0); /* separate objects to be finalized */ - markbeingfnz(g); /* mark objects that will be finalized */ - propagateall(g); /* remark, to propagate `preserveness' */ - work -= g->GCmemtrav; /* restart counting */ - convergeephemerons(g); - /* at this point, all resurrected objects are marked. */ - /* remove dead objects from weak tables */ - clearkeys(g, g->ephemeron, NULL); /* clear keys from all ephemeron tables */ - clearkeys(g, g->allweak, NULL); /* clear keys from all allweak tables */ - /* clear values from resurrected weak tables */ - clearvalues(g, g->weak, origweak); - clearvalues(g, g->allweak, origall); - g->currentwhite = cast_byte(otherwhite(g)); /* flip current white */ - work += g->GCmemtrav; /* complete counting */ - return work; /* estimate of memory marked by 'atomic' */ -} - - -static lu_mem singlestep (lua_State *L) { - global_State *g = G(L); - switch (g->gcstate) { - case GCSpause: { - /* start to count memory traversed */ - g->GCmemtrav = g->strt.size * sizeof(GCObject*); - lua_assert(!isgenerational(g)); - restartcollection(g); - g->gcstate = GCSpropagate; - return g->GCmemtrav; - } - case GCSpropagate: { - if (g->gray) { - lu_mem oldtrav = g->GCmemtrav; - propagatemark(g); - return g->GCmemtrav - oldtrav; /* memory traversed in this step */ - } - else { /* no more `gray' objects */ - lu_mem work; - int sw; - g->gcstate = GCSatomic; /* finish mark phase */ - g->GCestimate = g->GCmemtrav; /* save what was counted */; - work = atomic(L); /* add what was traversed by 'atomic' */ - g->GCestimate += work; /* estimate of total memory traversed */ - sw = entersweep(L); - return work + sw * GCSWEEPCOST; - } - } - case GCSsweepstring: { - int i; - for (i = 0; i < GCSWEEPMAX && g->sweepstrgc + i < g->strt.size; i++) - sweepwholelist(L, &g->strt.hash[g->sweepstrgc + i]); - g->sweepstrgc += i; - if (g->sweepstrgc >= g->strt.size) /* no more strings to sweep? */ - g->gcstate = GCSsweepudata; - return i * GCSWEEPCOST; - } - case GCSsweepudata: { - if (g->sweepfin) { - g->sweepfin = sweeplist(L, g->sweepfin, GCSWEEPMAX); - return GCSWEEPMAX*GCSWEEPCOST; - } - else { - g->gcstate = GCSsweep; - return 0; - } - } - case GCSsweep: { - if (g->sweepgc) { - g->sweepgc = sweeplist(L, g->sweepgc, GCSWEEPMAX); - return GCSWEEPMAX*GCSWEEPCOST; - } - else { - /* sweep main thread */ - GCObject *mt = obj2gco(g->mainthread); - sweeplist(L, &mt, 1); - checkSizes(L); - g->gcstate = GCSpause; /* finish collection */ - return GCSWEEPCOST; - } - } - default: lua_assert(0); return 0; - } -} - - -/* -** advances the garbage collector until it reaches a state allowed -** by 'statemask' -*/ -void luaC_runtilstate (lua_State *L, int statesmask) { - global_State *g = G(L); - while (!testbit(statesmask, g->gcstate)) - singlestep(L); -} - - -static void generationalcollection (lua_State *L) { - global_State *g = G(L); - lua_assert(g->gcstate == GCSpropagate); - if (g->GCestimate == 0) { /* signal for another major collection? */ - luaC_fullgc(L, 0); /* perform a full regular collection */ - g->GCestimate = gettotalbytes(g); /* update control */ - } - else { - lu_mem estimate = g->GCestimate; - luaC_runtilstate(L, bitmask(GCSpause)); /* run complete (minor) cycle */ - g->gcstate = GCSpropagate; /* skip restart */ - if (gettotalbytes(g) > (estimate / 100) * g->gcmajorinc) - g->GCestimate = 0; /* signal for a major collection */ - else - g->GCestimate = estimate; /* keep estimate from last major coll. */ - - } - setpause(g, gettotalbytes(g)); - lua_assert(g->gcstate == GCSpropagate); -} - - -static void incstep (lua_State *L) { - global_State *g = G(L); - l_mem debt = g->GCdebt; - int stepmul = g->gcstepmul; - if (stepmul < 40) stepmul = 40; /* avoid ridiculous low values (and 0) */ - /* convert debt from Kb to 'work units' (avoid zero debt and overflows) */ - debt = (debt / STEPMULADJ) + 1; - debt = (debt < MAX_LMEM / stepmul) ? debt * stepmul : MAX_LMEM; - do { /* always perform at least one single step */ - lu_mem work = singlestep(L); /* do some work */ - debt -= work; - } while (debt > -GCSTEPSIZE && g->gcstate != GCSpause); - if (g->gcstate == GCSpause) - setpause(g, g->GCestimate); /* pause until next cycle */ - else { - debt = (debt / stepmul) * STEPMULADJ; /* convert 'work units' to Kb */ - luaE_setdebt(g, debt); - } -} - - -/* -** performs a basic GC step -*/ -void luaC_forcestep (lua_State *L) { - global_State *g = G(L); - int i; - if (isgenerational(g)) generationalcollection(L); - else incstep(L); - /* run a few finalizers (or all of them at the end of a collect cycle) */ - for (i = 0; g->tobefnz && (i < GCFINALIZENUM || g->gcstate == GCSpause); i++) - GCTM(L, 1); /* call one finalizer */ -} - - -/* -** performs a basic GC step only if collector is running -*/ -void luaC_step (lua_State *L) { - global_State *g = G(L); - if (g->gcrunning) luaC_forcestep(L); - else luaE_setdebt(g, -GCSTEPSIZE); /* avoid being called too often */ -} - - - -/* -** performs a full GC cycle; if "isemergency", does not call -** finalizers (which could change stack positions) -*/ -void luaC_fullgc (lua_State *L, int isemergency) { - global_State *g = G(L); - int origkind = g->gckind; - lua_assert(origkind != KGC_EMERGENCY); - if (isemergency) /* do not run finalizers during emergency GC */ - g->gckind = KGC_EMERGENCY; - else { - g->gckind = KGC_NORMAL; - callallpendingfinalizers(L, 1); - } - if (keepinvariant(g)) { /* may there be some black objects? */ - /* must sweep all objects to turn them back to white - (as white has not changed, nothing will be collected) */ - entersweep(L); - } - /* finish any pending sweep phase to start a new cycle */ - luaC_runtilstate(L, bitmask(GCSpause)); - luaC_runtilstate(L, ~bitmask(GCSpause)); /* start new collection */ - luaC_runtilstate(L, bitmask(GCSpause)); /* run entire collection */ - if (origkind == KGC_GEN) { /* generational mode? */ - /* generational mode must be kept in propagate phase */ - luaC_runtilstate(L, bitmask(GCSpropagate)); - } - g->gckind = origkind; - setpause(g, gettotalbytes(g)); - if (!isemergency) /* do not run finalizers during emergency GC */ - callallpendingfinalizers(L, 1); -} - -/* }====================================================== */ - - diff --git a/Build/source/libs/lua52/lua52-src/src/lgc.h b/Build/source/libs/lua52/lua52-src/src/lgc.h deleted file mode 100644 index 84bb1cdf99f..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lgc.h +++ /dev/null @@ -1,157 +0,0 @@ -/* -** $Id: lgc.h,v 2.58.1.1 2013/04/12 18:48:47 roberto Exp $ -** Garbage Collector -** See Copyright Notice in lua.h -*/ - -#ifndef lgc_h -#define lgc_h - - -#include "lobject.h" -#include "lstate.h" - -/* -** Collectable objects may have one of three colors: white, which -** means the object is not marked; gray, which means the -** object is marked, but its references may be not marked; and -** black, which means that the object and all its references are marked. -** The main invariant of the garbage collector, while marking objects, -** is that a black object can never point to a white one. Moreover, -** any gray object must be in a "gray list" (gray, grayagain, weak, -** allweak, ephemeron) so that it can be visited again before finishing -** the collection cycle. These lists have no meaning when the invariant -** is not being enforced (e.g., sweep phase). -*/ - - - -/* how much to allocate before next GC step */ -#if !defined(GCSTEPSIZE) -/* ~100 small strings */ -#define GCSTEPSIZE (cast_int(100 * sizeof(TString))) -#endif - - -/* -** Possible states of the Garbage Collector -*/ -#define GCSpropagate 0 -#define GCSatomic 1 -#define GCSsweepstring 2 -#define GCSsweepudata 3 -#define GCSsweep 4 -#define GCSpause 5 - - -#define issweepphase(g) \ - (GCSsweepstring <= (g)->gcstate && (g)->gcstate <= GCSsweep) - -#define isgenerational(g) ((g)->gckind == KGC_GEN) - -/* -** macros to tell when main invariant (white objects cannot point to black -** ones) must be kept. During a non-generational collection, the sweep -** phase may break the invariant, as objects turned white may point to -** still-black objects. The invariant is restored when sweep ends and -** all objects are white again. During a generational collection, the -** invariant must be kept all times. -*/ - -#define keepinvariant(g) (isgenerational(g) || g->gcstate <= GCSatomic) - - -/* -** Outside the collector, the state in generational mode is kept in -** 'propagate', so 'keepinvariant' is always true. -*/ -#define keepinvariantout(g) \ - check_exp(g->gcstate == GCSpropagate || !isgenerational(g), \ - g->gcstate <= GCSatomic) - - -/* -** some useful bit tricks -*/ -#define resetbits(x,m) ((x) &= cast(lu_byte, ~(m))) -#define setbits(x,m) ((x) |= (m)) -#define testbits(x,m) ((x) & (m)) -#define bitmask(b) (1<<(b)) -#define bit2mask(b1,b2) (bitmask(b1) | bitmask(b2)) -#define l_setbit(x,b) setbits(x, bitmask(b)) -#define resetbit(x,b) resetbits(x, bitmask(b)) -#define testbit(x,b) testbits(x, bitmask(b)) - - -/* Layout for bit use in `marked' field: */ -#define WHITE0BIT 0 /* object is white (type 0) */ -#define WHITE1BIT 1 /* object is white (type 1) */ -#define BLACKBIT 2 /* object is black */ -#define FINALIZEDBIT 3 /* object has been separated for finalization */ -#define SEPARATED 4 /* object is in 'finobj' list or in 'tobefnz' */ -#define FIXEDBIT 5 /* object is fixed (should not be collected) */ -#define OLDBIT 6 /* object is old (only in generational mode) */ -/* bit 7 is currently used by tests (luaL_checkmemory) */ - -#define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT) - - -#define iswhite(x) testbits((x)->gch.marked, WHITEBITS) -#define isblack(x) testbit((x)->gch.marked, BLACKBIT) -#define isgray(x) /* neither white nor black */ \ - (!testbits((x)->gch.marked, WHITEBITS | bitmask(BLACKBIT))) - -#define isold(x) testbit((x)->gch.marked, OLDBIT) - -/* MOVE OLD rule: whenever an object is moved to the beginning of - a GC list, its old bit must be cleared */ -#define resetoldbit(o) resetbit((o)->gch.marked, OLDBIT) - -#define otherwhite(g) (g->currentwhite ^ WHITEBITS) -#define isdeadm(ow,m) (!(((m) ^ WHITEBITS) & (ow))) -#define isdead(g,v) isdeadm(otherwhite(g), (v)->gch.marked) - -#define changewhite(x) ((x)->gch.marked ^= WHITEBITS) -#define gray2black(x) l_setbit((x)->gch.marked, BLACKBIT) - -#define valiswhite(x) (iscollectable(x) && iswhite(gcvalue(x))) - -#define luaC_white(g) cast(lu_byte, (g)->currentwhite & WHITEBITS) - - -#define luaC_condGC(L,c) \ - {if (G(L)->GCdebt > 0) {c;}; condchangemem(L);} -#define luaC_checkGC(L) luaC_condGC(L, luaC_step(L);) - - -#define luaC_barrier(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \ - luaC_barrier_(L,obj2gco(p),gcvalue(v)); } - -#define luaC_barrierback(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \ - luaC_barrierback_(L,p); } - -#define luaC_objbarrier(L,p,o) \ - { if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \ - luaC_barrier_(L,obj2gco(p),obj2gco(o)); } - -#define luaC_objbarrierback(L,p,o) \ - { if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) luaC_barrierback_(L,p); } - -#define luaC_barrierproto(L,p,c) \ - { if (isblack(obj2gco(p))) luaC_barrierproto_(L,p,c); } - -LUAI_FUNC void luaC_freeallobjects (lua_State *L); -LUAI_FUNC void luaC_step (lua_State *L); -LUAI_FUNC void luaC_forcestep (lua_State *L); -LUAI_FUNC void luaC_runtilstate (lua_State *L, int statesmask); -LUAI_FUNC void luaC_fullgc (lua_State *L, int isemergency); -LUAI_FUNC GCObject *luaC_newobj (lua_State *L, int tt, size_t sz, - GCObject **list, int offset); -LUAI_FUNC void luaC_barrier_ (lua_State *L, GCObject *o, GCObject *v); -LUAI_FUNC void luaC_barrierback_ (lua_State *L, GCObject *o); -LUAI_FUNC void luaC_barrierproto_ (lua_State *L, Proto *p, Closure *c); -LUAI_FUNC void luaC_checkfinalizer (lua_State *L, GCObject *o, Table *mt); -LUAI_FUNC void luaC_checkupvalcolor (global_State *g, UpVal *uv); -LUAI_FUNC void luaC_changemode (lua_State *L, int mode); - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/linit.c b/Build/source/libs/lua52/lua52-src/src/linit.c deleted file mode 100644 index c1a38304711..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/linit.c +++ /dev/null @@ -1,67 +0,0 @@ -/* -** $Id: linit.c,v 1.32.1.1 2013/04/12 18:48:47 roberto Exp $ -** Initialization of libraries for lua.c and other clients -** See Copyright Notice in lua.h -*/ - - -/* -** If you embed Lua in your program and need to open the standard -** libraries, call luaL_openlibs in your program. If you need a -** different set of libraries, copy this file to your project and edit -** it to suit your needs. -*/ - - -#define linit_c -#define LUA_LIB - -#include "lua.h" - -#include "lualib.h" -#include "lauxlib.h" - - -/* -** these libs are loaded by lua.c and are readily available to any Lua -** program -*/ -static const luaL_Reg loadedlibs[] = { - {"_G", luaopen_base}, - {LUA_LOADLIBNAME, luaopen_package}, - {LUA_COLIBNAME, luaopen_coroutine}, - {LUA_TABLIBNAME, luaopen_table}, - {LUA_IOLIBNAME, luaopen_io}, - {LUA_OSLIBNAME, luaopen_os}, - {LUA_STRLIBNAME, luaopen_string}, - {LUA_BITLIBNAME, luaopen_bit32}, - {LUA_MATHLIBNAME, luaopen_math}, - {LUA_DBLIBNAME, luaopen_debug}, - {NULL, NULL} -}; - - -/* -** these libs are preloaded and must be required before used -*/ -static const luaL_Reg preloadedlibs[] = { - {NULL, NULL} -}; - - -LUALIB_API void luaL_openlibs (lua_State *L) { - const luaL_Reg *lib; - /* call open functions from 'loadedlibs' and set results to global table */ - for (lib = loadedlibs; lib->func; lib++) { - luaL_requiref(L, lib->name, lib->func, 1); - lua_pop(L, 1); /* remove lib */ - } - /* add open functions from 'preloadedlibs' into 'package.preload' table */ - luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); - for (lib = preloadedlibs; lib->func; lib++) { - lua_pushcfunction(L, lib->func); - lua_setfield(L, -2, lib->name); - } - lua_pop(L, 1); /* remove _PRELOAD table */ -} - diff --git a/Build/source/libs/lua52/lua52-src/src/liolib.c b/Build/source/libs/lua52/lua52-src/src/liolib.c deleted file mode 100644 index 481630101c0..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/liolib.c +++ /dev/null @@ -1,669 +0,0 @@ -/* -** $Id: liolib.c,v 2.112.1.1 2013/04/12 18:48:47 roberto Exp $ -** Standard I/O (and system) library -** See Copyright Notice in lua.h -*/ - - -/* -** This definition must come before the inclusion of 'stdio.h'; it -** should not affect non-POSIX systems -*/ -#if !defined(_FILE_OFFSET_BITS) -#define _LARGEFILE_SOURCE 1 -#define _FILE_OFFSET_BITS 64 -#endif - - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#if defined(HAVE_UNISTD_H) -#include <unistd.h> -#endif - -#define liolib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -#if !defined(lua_checkmode) - -/* -** Check whether 'mode' matches '[rwa]%+?b?'. -** Change this macro to accept other modes for 'fopen' besides -** the standard ones. -*/ -#define lua_checkmode(mode) \ - (*mode != '\0' && strchr("rwa", *(mode++)) != NULL && \ - (*mode != '+' || ++mode) && /* skip if char is '+' */ \ - (*mode != 'b' || ++mode) && /* skip if char is 'b' */ \ - (*mode == '\0')) - -#endif - -/* -** {====================================================== -** lua_popen spawns a new process connected to the current -** one through the file streams. -** ======================================================= -*/ - -#if !defined(lua_popen) /* { */ - -#if defined(LUA_USE_POPEN) /* { */ - -#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m)) -#define lua_pclose(L,file) ((void)L, pclose(file)) - -#elif defined(LUA_WIN) /* }{ */ - -#define lua_popen(L,c,m) ((void)L, _popen(c,m)) -#define lua_pclose(L,file) ((void)L, _pclose(file)) - - -#else /* }{ */ - -#define lua_popen(L,c,m) ((void)((void)c, m), \ - luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0) -#define lua_pclose(L,file) ((void)((void)L, file), -1) - - -#endif /* } */ - -#endif /* } */ - -/* }====================================================== */ - - -/* -** {====================================================== -** lua_fseek: configuration for longer offsets -** ======================================================= -*/ - -#if !defined(lua_fseek) && !defined(LUA_ANSI) /* { */ - -#if defined(LUA_USE_POSIX) /* { */ - -#define l_fseek(f,o,w) fseeko(f,o,w) -#define l_ftell(f) ftello(f) -#define l_seeknum off_t - -#elif defined(LUA_WIN) && !defined(_CRTIMP_TYPEINFO) \ - && defined(_MSC_VER) && (_MSC_VER >= 1400) /* }{ */ -/* Windows (but not DDK) and Visual C++ 2005 or higher */ - -#define l_fseek(f,o,w) _fseeki64(f,o,w) -#define l_ftell(f) _ftelli64(f) -#define l_seeknum __int64 - -#endif /* } */ - -#endif /* } */ - - -#if !defined(l_fseek) /* default definitions */ -#define l_fseek(f,o,w) fseek(f,o,w) -#define l_ftell(f) ftell(f) -#define l_seeknum long -#endif - -/* }====================================================== */ - - -#define IO_PREFIX "_IO_" -#define IO_INPUT (IO_PREFIX "input") -#define IO_OUTPUT (IO_PREFIX "output") - - -typedef luaL_Stream LStream; - - -#define tolstream(L) ((LStream *)luaL_checkudata(L, 1, LUA_FILEHANDLE)) - -#define isclosed(p) ((p)->closef == NULL) - - -static int io_type (lua_State *L) { - LStream *p; - luaL_checkany(L, 1); - p = (LStream *)luaL_testudata(L, 1, LUA_FILEHANDLE); - if (p == NULL) - lua_pushnil(L); /* not a file */ - else if (isclosed(p)) - lua_pushliteral(L, "closed file"); - else - lua_pushliteral(L, "file"); - return 1; -} - - -static int f_tostring (lua_State *L) { - LStream *p = tolstream(L); - if (isclosed(p)) - lua_pushliteral(L, "file (closed)"); - else - lua_pushfstring(L, "file (%p)", p->f); - return 1; -} - - -static FILE *tofile (lua_State *L) { - LStream *p = tolstream(L); - if (isclosed(p)) - luaL_error(L, "attempt to use a closed file"); - lua_assert(p->f); - return p->f; -} - - -/* -** When creating file handles, always creates a `closed' file handle -** before opening the actual file; so, if there is a memory error, the -** file is not left opened. -*/ -static LStream *newprefile (lua_State *L) { - LStream *p = (LStream *)lua_newuserdata(L, sizeof(LStream)); - p->closef = NULL; /* mark file handle as 'closed' */ - luaL_setmetatable(L, LUA_FILEHANDLE); - return p; -} - - -static int aux_close (lua_State *L) { - LStream *p = tolstream(L); - lua_CFunction cf = p->closef; - p->closef = NULL; /* mark stream as closed */ - return (*cf)(L); /* close it */ -} - - -static int io_close (lua_State *L) { - if (lua_isnone(L, 1)) /* no argument? */ - lua_getfield(L, LUA_REGISTRYINDEX, IO_OUTPUT); /* use standard output */ - tofile(L); /* make sure argument is an open stream */ - return aux_close(L); -} - - -static int f_gc (lua_State *L) { - LStream *p = tolstream(L); - if (!isclosed(p) && p->f != NULL) - aux_close(L); /* ignore closed and incompletely open files */ - return 0; -} - - -/* -** function to close regular files -*/ -static int io_fclose (lua_State *L) { - LStream *p = tolstream(L); - int res = fclose(p->f); - return luaL_fileresult(L, (res == 0), NULL); -} - - -static LStream *newfile (lua_State *L) { - LStream *p = newprefile(L); - p->f = NULL; - p->closef = &io_fclose; - return p; -} - - -static void opencheck (lua_State *L, const char *fname, const char *mode) { - LStream *p = newfile(L); - p->f = fopen(fname, mode); - if (p->f == NULL) - luaL_error(L, "cannot open file " LUA_QS " (%s)", fname, strerror(errno)); -} - - -static int io_open (lua_State *L) { - const char *filename = luaL_checkstring(L, 1); - const char *mode = luaL_optstring(L, 2, "r"); - LStream *p = newfile(L); - const char *md = mode; /* to traverse/check mode */ - luaL_argcheck(L, lua_checkmode(md), 2, "invalid mode"); - p->f = fopen(filename, mode); - return (p->f == NULL) ? luaL_fileresult(L, 0, filename) : 1; -} - - -/* -** function to close 'popen' files -*/ -static int io_pclose (lua_State *L) { - LStream *p = tolstream(L); - return luaL_execresult(L, lua_pclose(L, p->f)); -} - - -static int io_popen (lua_State *L) { - const char *filename = luaL_checkstring(L, 1); - const char *mode = luaL_optstring(L, 2, "r"); - LStream *p = newprefile(L); - p->f = lua_popen(L, filename, mode); - p->closef = &io_pclose; - return (p->f == NULL) ? luaL_fileresult(L, 0, filename) : 1; -} - - -static int io_tmpfile (lua_State *L) { - LStream *p = newfile(L); - p->f = tmpfile(); - return (p->f == NULL) ? luaL_fileresult(L, 0, NULL) : 1; -} - - -static FILE *getiofile (lua_State *L, const char *findex) { - LStream *p; - lua_getfield(L, LUA_REGISTRYINDEX, findex); - p = (LStream *)lua_touserdata(L, -1); - if (isclosed(p)) - luaL_error(L, "standard %s file is closed", findex + strlen(IO_PREFIX)); - return p->f; -} - - -static int g_iofile (lua_State *L, const char *f, const char *mode) { - if (!lua_isnoneornil(L, 1)) { - const char *filename = lua_tostring(L, 1); - if (filename) - opencheck(L, filename, mode); - else { - tofile(L); /* check that it's a valid file handle */ - lua_pushvalue(L, 1); - } - lua_setfield(L, LUA_REGISTRYINDEX, f); - } - /* return current value */ - lua_getfield(L, LUA_REGISTRYINDEX, f); - return 1; -} - - -static int io_input (lua_State *L) { - return g_iofile(L, IO_INPUT, "r"); -} - - -static int io_output (lua_State *L) { - return g_iofile(L, IO_OUTPUT, "w"); -} - - -static int io_readline (lua_State *L); - - -static void aux_lines (lua_State *L, int toclose) { - int i; - int n = lua_gettop(L) - 1; /* number of arguments to read */ - /* ensure that arguments will fit here and into 'io_readline' stack */ - luaL_argcheck(L, n <= LUA_MINSTACK - 3, LUA_MINSTACK - 3, "too many options"); - lua_pushvalue(L, 1); /* file handle */ - lua_pushinteger(L, n); /* number of arguments to read */ - lua_pushboolean(L, toclose); /* close/not close file when finished */ - for (i = 1; i <= n; i++) lua_pushvalue(L, i + 1); /* copy arguments */ - lua_pushcclosure(L, io_readline, 3 + n); -} - - -static int f_lines (lua_State *L) { - tofile(L); /* check that it's a valid file handle */ - aux_lines(L, 0); - return 1; -} - - -static int io_lines (lua_State *L) { - int toclose; - if (lua_isnone(L, 1)) lua_pushnil(L); /* at least one argument */ - if (lua_isnil(L, 1)) { /* no file name? */ - lua_getfield(L, LUA_REGISTRYINDEX, IO_INPUT); /* get default input */ - lua_replace(L, 1); /* put it at index 1 */ - tofile(L); /* check that it's a valid file handle */ - toclose = 0; /* do not close it after iteration */ - } - else { /* open a new file */ - const char *filename = luaL_checkstring(L, 1); - opencheck(L, filename, "r"); - lua_replace(L, 1); /* put file at index 1 */ - toclose = 1; /* close it after iteration */ - } - aux_lines(L, toclose); - return 1; -} - - -/* -** {====================================================== -** READ -** ======================================================= -*/ - - -static int read_number (lua_State *L, FILE *f) { - lua_Number d; - if (fscanf(f, LUA_NUMBER_SCAN, &d) == 1) { - lua_pushnumber(L, d); - return 1; - } - else { - lua_pushnil(L); /* "result" to be removed */ - return 0; /* read fails */ - } -} - - -static int test_eof (lua_State *L, FILE *f) { - int c = getc(f); - ungetc(c, f); - lua_pushlstring(L, NULL, 0); - return (c != EOF); -} - - -static int read_line (lua_State *L, FILE *f, int chop) { - luaL_Buffer b; - luaL_buffinit(L, &b); - for (;;) { - size_t l; - char *p = luaL_prepbuffer(&b); - if (fgets(p, LUAL_BUFFERSIZE, f) == NULL) { /* eof? */ - luaL_pushresult(&b); /* close buffer */ - return (lua_rawlen(L, -1) > 0); /* check whether read something */ - } - l = strlen(p); - if (l == 0 || p[l-1] != '\n') - luaL_addsize(&b, l); - else { - luaL_addsize(&b, l - chop); /* chop 'eol' if needed */ - luaL_pushresult(&b); /* close buffer */ - return 1; /* read at least an `eol' */ - } - } -} - - -#define MAX_SIZE_T (~(size_t)0) - -static void read_all (lua_State *L, FILE *f) { - size_t rlen = LUAL_BUFFERSIZE; /* how much to read in each cycle */ - luaL_Buffer b; - luaL_buffinit(L, &b); - for (;;) { - char *p = luaL_prepbuffsize(&b, rlen); - size_t nr = fread(p, sizeof(char), rlen, f); - luaL_addsize(&b, nr); - if (nr < rlen) break; /* eof? */ - else if (rlen <= (MAX_SIZE_T / 4)) /* avoid buffers too large */ - rlen *= 2; /* double buffer size at each iteration */ - } - luaL_pushresult(&b); /* close buffer */ -} - - -static int read_chars (lua_State *L, FILE *f, size_t n) { - size_t nr; /* number of chars actually read */ - char *p; - luaL_Buffer b; - luaL_buffinit(L, &b); - p = luaL_prepbuffsize(&b, n); /* prepare buffer to read whole block */ - nr = fread(p, sizeof(char), n, f); /* try to read 'n' chars */ - luaL_addsize(&b, nr); - luaL_pushresult(&b); /* close buffer */ - return (nr > 0); /* true iff read something */ -} - - -static int g_read (lua_State *L, FILE *f, int first) { - int nargs = lua_gettop(L) - 1; - int success; - int n; - clearerr(f); - if (nargs == 0) { /* no arguments? */ - success = read_line(L, f, 1); - n = first+1; /* to return 1 result */ - } - else { /* ensure stack space for all results and for auxlib's buffer */ - luaL_checkstack(L, nargs+LUA_MINSTACK, "too many arguments"); - success = 1; - for (n = first; nargs-- && success; n++) { - if (lua_type(L, n) == LUA_TNUMBER) { - size_t l = (size_t)lua_tointeger(L, n); - success = (l == 0) ? test_eof(L, f) : read_chars(L, f, l); - } - else { - const char *p = lua_tostring(L, n); - luaL_argcheck(L, p && p[0] == '*', n, "invalid option"); - switch (p[1]) { - case 'n': /* number */ - success = read_number(L, f); - break; - case 'l': /* line */ - success = read_line(L, f, 1); - break; - case 'L': /* line with end-of-line */ - success = read_line(L, f, 0); - break; - case 'a': /* file */ - read_all(L, f); /* read entire file */ - success = 1; /* always success */ - break; - default: - return luaL_argerror(L, n, "invalid format"); - } - } - } - } - if (ferror(f)) - return luaL_fileresult(L, 0, NULL); - if (!success) { - lua_pop(L, 1); /* remove last result */ - lua_pushnil(L); /* push nil instead */ - } - return n - first; -} - - -static int io_read (lua_State *L) { - return g_read(L, getiofile(L, IO_INPUT), 1); -} - - -static int f_read (lua_State *L) { - return g_read(L, tofile(L), 2); -} - - -static int io_readline (lua_State *L) { - LStream *p = (LStream *)lua_touserdata(L, lua_upvalueindex(1)); - int i; - int n = (int)lua_tointeger(L, lua_upvalueindex(2)); - if (isclosed(p)) /* file is already closed? */ - return luaL_error(L, "file is already closed"); - lua_settop(L , 1); - for (i = 1; i <= n; i++) /* push arguments to 'g_read' */ - lua_pushvalue(L, lua_upvalueindex(3 + i)); - n = g_read(L, p->f, 2); /* 'n' is number of results */ - lua_assert(n > 0); /* should return at least a nil */ - if (!lua_isnil(L, -n)) /* read at least one value? */ - return n; /* return them */ - else { /* first result is nil: EOF or error */ - if (n > 1) { /* is there error information? */ - /* 2nd result is error message */ - return luaL_error(L, "%s", lua_tostring(L, -n + 1)); - } - if (lua_toboolean(L, lua_upvalueindex(3))) { /* generator created file? */ - lua_settop(L, 0); - lua_pushvalue(L, lua_upvalueindex(1)); - aux_close(L); /* close it */ - } - return 0; - } -} - -/* }====================================================== */ - - -static int g_write (lua_State *L, FILE *f, int arg) { - int nargs = lua_gettop(L) - arg; - int status = 1; - for (; nargs--; arg++) { - if (lua_type(L, arg) == LUA_TNUMBER) { - /* optimization: could be done exactly as for strings */ - status = status && - fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0; - } - else { - size_t l; - const char *s = luaL_checklstring(L, arg, &l); - status = status && (fwrite(s, sizeof(char), l, f) == l); - } - } - if (status) return 1; /* file handle already on stack top */ - else return luaL_fileresult(L, status, NULL); -} - - -static int io_write (lua_State *L) { - return g_write(L, getiofile(L, IO_OUTPUT), 1); -} - - -static int f_write (lua_State *L) { - FILE *f = tofile(L); - lua_pushvalue(L, 1); /* push file at the stack top (to be returned) */ - return g_write(L, f, 2); -} - - -static int f_seek (lua_State *L) { - static const int mode[] = {SEEK_SET, SEEK_CUR, SEEK_END}; - static const char *const modenames[] = {"set", "cur", "end", NULL}; - FILE *f = tofile(L); - int op = luaL_checkoption(L, 2, "cur", modenames); - lua_Number p3 = luaL_optnumber(L, 3, 0); - l_seeknum offset = (l_seeknum)p3; - luaL_argcheck(L, (lua_Number)offset == p3, 3, - "not an integer in proper range"); - op = l_fseek(f, offset, mode[op]); - if (op) - return luaL_fileresult(L, 0, NULL); /* error */ - else { - lua_pushnumber(L, (lua_Number)l_ftell(f)); - return 1; - } -} - - -static int f_setvbuf (lua_State *L) { - static const int mode[] = {_IONBF, _IOFBF, _IOLBF}; - static const char *const modenames[] = {"no", "full", "line", NULL}; - FILE *f = tofile(L); - int op = luaL_checkoption(L, 2, NULL, modenames); - lua_Integer sz = luaL_optinteger(L, 3, LUAL_BUFFERSIZE); - int res = setvbuf(f, NULL, mode[op], sz); - return luaL_fileresult(L, res == 0, NULL); -} - - - -static int io_flush (lua_State *L) { - return luaL_fileresult(L, fflush(getiofile(L, IO_OUTPUT)) == 0, NULL); -} - - -static int f_flush (lua_State *L) { - return luaL_fileresult(L, fflush(tofile(L)) == 0, NULL); -} - - -/* -** functions for 'io' library -*/ -static const luaL_Reg iolib[] = { - {"close", io_close}, - {"flush", io_flush}, - {"input", io_input}, - {"lines", io_lines}, - {"open", io_open}, - {"output", io_output}, - {"popen", io_popen}, - {"read", io_read}, - {"tmpfile", io_tmpfile}, - {"type", io_type}, - {"write", io_write}, - {NULL, NULL} -}; - - -/* -** methods for file handles -*/ -static const luaL_Reg flib[] = { - {"close", io_close}, - {"flush", f_flush}, - {"lines", f_lines}, - {"read", f_read}, - {"seek", f_seek}, - {"setvbuf", f_setvbuf}, - {"write", f_write}, - {"__gc", f_gc}, - {"__tostring", f_tostring}, - {NULL, NULL} -}; - - -static void createmeta (lua_State *L) { - luaL_newmetatable(L, LUA_FILEHANDLE); /* create metatable for file handles */ - lua_pushvalue(L, -1); /* push metatable */ - lua_setfield(L, -2, "__index"); /* metatable.__index = metatable */ - luaL_setfuncs(L, flib, 0); /* add file methods to new metatable */ - lua_pop(L, 1); /* pop new metatable */ -} - - -/* -** function to (not) close the standard files stdin, stdout, and stderr -*/ -static int io_noclose (lua_State *L) { - LStream *p = tolstream(L); - p->closef = &io_noclose; /* keep file opened */ - lua_pushnil(L); - lua_pushliteral(L, "cannot close standard file"); - return 2; -} - - -static void createstdfile (lua_State *L, FILE *f, const char *k, - const char *fname) { - LStream *p = newprefile(L); - p->f = f; - p->closef = &io_noclose; - if (k != NULL) { - lua_pushvalue(L, -1); - lua_setfield(L, LUA_REGISTRYINDEX, k); /* add file to registry */ - } - lua_setfield(L, -2, fname); /* add file to module */ -} - - -LUAMOD_API int luaopen_io (lua_State *L) { - luaL_newlib(L, iolib); /* new module */ - createmeta(L); - /* create (and set) default files */ - createstdfile(L, stdin, IO_INPUT, "stdin"); - createstdfile(L, stdout, IO_OUTPUT, "stdout"); - createstdfile(L, stderr, NULL, "stderr"); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/llex.c b/Build/source/libs/lua52/lua52-src/src/llex.c deleted file mode 100644 index 32cdcf1cfac..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/llex.c +++ /dev/null @@ -1,530 +0,0 @@ -/* -** $Id: llex.c,v 2.63.1.3 2015/02/09 17:56:34 roberto Exp $ -** Lexical Analyzer -** See Copyright Notice in lua.h -*/ - - -#include <locale.h> -#include <string.h> - -#define llex_c -#define LUA_CORE - -#include "lua.h" - -#include "lctype.h" -#include "ldo.h" -#include "llex.h" -#include "lobject.h" -#include "lparser.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "lzio.h" - - - -#define next(ls) (ls->current = zgetc(ls->z)) - - - -#define currIsNewline(ls) (ls->current == '\n' || ls->current == '\r') - - -/* ORDER RESERVED */ -static const char *const luaX_tokens [] = { - "and", "break", "do", "else", "elseif", - "end", "false", "for", "function", "goto", "if", - "in", "local", "nil", "not", "or", "repeat", - "return", "then", "true", "until", "while", - "..", "...", "==", ">=", "<=", "~=", "::", "<eof>", - "<number>", "<name>", "<string>" -}; - - -#define save_and_next(ls) (save(ls, ls->current), next(ls)) - - -static l_noret lexerror (LexState *ls, const char *msg, int token); - - -static void save (LexState *ls, int c) { - Mbuffer *b = ls->buff; - if (luaZ_bufflen(b) + 1 > luaZ_sizebuffer(b)) { - size_t newsize; - if (luaZ_sizebuffer(b) >= MAX_SIZET/2) - lexerror(ls, "lexical element too long", 0); - newsize = luaZ_sizebuffer(b) * 2; - luaZ_resizebuffer(ls->L, b, newsize); - } - b->buffer[luaZ_bufflen(b)++] = cast(char, c); -} - - -void luaX_init (lua_State *L) { - int i; - for (i=0; i<NUM_RESERVED; i++) { - TString *ts = luaS_new(L, luaX_tokens[i]); - luaS_fix(ts); /* reserved words are never collected */ - ts->tsv.extra = cast_byte(i+1); /* reserved word */ - } -} - - -const char *luaX_token2str (LexState *ls, int token) { - if (token < FIRST_RESERVED) { /* single-byte symbols? */ - lua_assert(token == cast(unsigned char, token)); - return (lisprint(token)) ? luaO_pushfstring(ls->L, LUA_QL("%c"), token) : - luaO_pushfstring(ls->L, "char(%d)", token); - } - else { - const char *s = luaX_tokens[token - FIRST_RESERVED]; - if (token < TK_EOS) /* fixed format (symbols and reserved words)? */ - return luaO_pushfstring(ls->L, LUA_QS, s); - else /* names, strings, and numerals */ - return s; - } -} - - -static const char *txtToken (LexState *ls, int token) { - switch (token) { - case TK_NAME: - case TK_STRING: - case TK_NUMBER: - save(ls, '\0'); - return luaO_pushfstring(ls->L, LUA_QS, luaZ_buffer(ls->buff)); - default: - return luaX_token2str(ls, token); - } -} - - -static l_noret lexerror (LexState *ls, const char *msg, int token) { - char buff[LUA_IDSIZE]; - luaO_chunkid(buff, getstr(ls->source), LUA_IDSIZE); - msg = luaO_pushfstring(ls->L, "%s:%d: %s", buff, ls->linenumber, msg); - if (token) - luaO_pushfstring(ls->L, "%s near %s", msg, txtToken(ls, token)); - luaD_throw(ls->L, LUA_ERRSYNTAX); -} - - -l_noret luaX_syntaxerror (LexState *ls, const char *msg) { - lexerror(ls, msg, ls->t.token); -} - - -/* -** creates a new string and anchors it in function's table so that -** it will not be collected until the end of the function's compilation -** (by that time it should be anchored in function's prototype) -*/ -TString *luaX_newstring (LexState *ls, const char *str, size_t l) { - lua_State *L = ls->L; - TValue *o; /* entry for `str' */ - TString *ts = luaS_newlstr(L, str, l); /* create new string */ - setsvalue2s(L, L->top++, ts); /* temporarily anchor it in stack */ - o = luaH_set(L, ls->fs->h, L->top - 1); - if (ttisnil(o)) { /* not in use yet? (see 'addK') */ - /* boolean value does not need GC barrier; - table has no metatable, so it does not need to invalidate cache */ - setbvalue(o, 1); /* t[string] = true */ - luaC_checkGC(L); - } - else { /* string already present */ - ts = rawtsvalue(keyfromval(o)); /* re-use value previously stored */ - } - L->top--; /* remove string from stack */ - return ts; -} - - -/* -** increment line number and skips newline sequence (any of -** \n, \r, \n\r, or \r\n) -*/ -static void inclinenumber (LexState *ls) { - int old = ls->current; - lua_assert(currIsNewline(ls)); - next(ls); /* skip `\n' or `\r' */ - if (currIsNewline(ls) && ls->current != old) - next(ls); /* skip `\n\r' or `\r\n' */ - if (++ls->linenumber >= MAX_INT) - lexerror(ls, "chunk has too many lines", 0); -} - - -void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, TString *source, - int firstchar) { - ls->decpoint = '.'; - ls->L = L; - ls->current = firstchar; - ls->lookahead.token = TK_EOS; /* no look-ahead token */ - ls->z = z; - ls->fs = NULL; - ls->linenumber = 1; - ls->lastline = 1; - ls->source = source; - ls->envn = luaS_new(L, LUA_ENV); /* create env name */ - luaS_fix(ls->envn); /* never collect this name */ - luaZ_resizebuffer(ls->L, ls->buff, LUA_MINBUFFER); /* initialize buffer */ -} - - - -/* -** ======================================================= -** LEXICAL ANALYZER -** ======================================================= -*/ - - - -static int check_next (LexState *ls, const char *set) { - if (ls->current == '\0' || !strchr(set, ls->current)) - return 0; - save_and_next(ls); - return 1; -} - - -/* -** change all characters 'from' in buffer to 'to' -*/ -static void buffreplace (LexState *ls, char from, char to) { - size_t n = luaZ_bufflen(ls->buff); - char *p = luaZ_buffer(ls->buff); - while (n--) - if (p[n] == from) p[n] = to; -} - - -#if !defined(getlocaledecpoint) -#define getlocaledecpoint() (localeconv()->decimal_point[0]) -#endif - - -#define buff2d(b,e) luaO_str2d(luaZ_buffer(b), luaZ_bufflen(b) - 1, e) - -/* -** in case of format error, try to change decimal point separator to -** the one defined in the current locale and check again -*/ -static void trydecpoint (LexState *ls, SemInfo *seminfo) { - char old = ls->decpoint; - ls->decpoint = getlocaledecpoint(); - buffreplace(ls, old, ls->decpoint); /* try new decimal separator */ - if (!buff2d(ls->buff, &seminfo->r)) { - /* format error with correct decimal point: no more options */ - buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */ - lexerror(ls, "malformed number", TK_NUMBER); - } -} - - -/* LUA_NUMBER */ -/* -** this function is quite liberal in what it accepts, as 'luaO_str2d' -** will reject ill-formed numerals. -*/ -static void read_numeral (LexState *ls, SemInfo *seminfo) { - const char *expo = "Ee"; - int first = ls->current; - lua_assert(lisdigit(ls->current)); - save_and_next(ls); - if (first == '0' && check_next(ls, "Xx")) /* hexadecimal? */ - expo = "Pp"; - for (;;) { - if (check_next(ls, expo)) /* exponent part? */ - check_next(ls, "+-"); /* optional exponent sign */ - if (lisxdigit(ls->current) || ls->current == '.') - save_and_next(ls); - else break; - } - save(ls, '\0'); - buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */ - if (!buff2d(ls->buff, &seminfo->r)) /* format error? */ - trydecpoint(ls, seminfo); /* try to update decimal point separator */ -} - - -/* -** skip a sequence '[=*[' or ']=*]' and return its number of '='s or -** -1 if sequence is malformed -*/ -static int skip_sep (LexState *ls) { - int count = 0; - int s = ls->current; - lua_assert(s == '[' || s == ']'); - save_and_next(ls); - while (ls->current == '=') { - save_and_next(ls); - count++; - } - return (ls->current == s) ? count : (-count) - 1; -} - - -static void read_long_string (LexState *ls, SemInfo *seminfo, int sep) { - save_and_next(ls); /* skip 2nd `[' */ - if (currIsNewline(ls)) /* string starts with a newline? */ - inclinenumber(ls); /* skip it */ - for (;;) { - switch (ls->current) { - case EOZ: - lexerror(ls, (seminfo) ? "unfinished long string" : - "unfinished long comment", TK_EOS); - break; /* to avoid warnings */ - case ']': { - if (skip_sep(ls) == sep) { - save_and_next(ls); /* skip 2nd `]' */ - goto endloop; - } - break; - } - case '\n': case '\r': { - save(ls, '\n'); - inclinenumber(ls); - if (!seminfo) luaZ_resetbuffer(ls->buff); /* avoid wasting space */ - break; - } - default: { - if (seminfo) save_and_next(ls); - else next(ls); - } - } - } endloop: - if (seminfo) - seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + (2 + sep), - luaZ_bufflen(ls->buff) - 2*(2 + sep)); -} - - -static void escerror (LexState *ls, int *c, int n, const char *msg) { - int i; - luaZ_resetbuffer(ls->buff); /* prepare error message */ - save(ls, '\\'); - for (i = 0; i < n && c[i] != EOZ; i++) - save(ls, c[i]); - lexerror(ls, msg, TK_STRING); -} - - -static int readhexaesc (LexState *ls) { - int c[3], i; /* keep input for error message */ - int r = 0; /* result accumulator */ - c[0] = 'x'; /* for error message */ - for (i = 1; i < 3; i++) { /* read two hexadecimal digits */ - c[i] = next(ls); - if (!lisxdigit(c[i])) - escerror(ls, c, i + 1, "hexadecimal digit expected"); - r = (r << 4) + luaO_hexavalue(c[i]); - } - return r; -} - - -static int readdecesc (LexState *ls) { - int c[3], i; - int r = 0; /* result accumulator */ - for (i = 0; i < 3 && lisdigit(ls->current); i++) { /* read up to 3 digits */ - c[i] = ls->current; - r = 10*r + c[i] - '0'; - next(ls); - } - if (r > UCHAR_MAX) - escerror(ls, c, i, "decimal escape too large"); - return r; -} - - -static void read_string (LexState *ls, int del, SemInfo *seminfo) { - save_and_next(ls); /* keep delimiter (for error messages) */ - while (ls->current != del) { - switch (ls->current) { - case EOZ: - lexerror(ls, "unfinished string", TK_EOS); - break; /* to avoid warnings */ - case '\n': - case '\r': - lexerror(ls, "unfinished string", TK_STRING); - break; /* to avoid warnings */ - case '\\': { /* escape sequences */ - int c; /* final character to be saved */ - next(ls); /* do not save the `\' */ - switch (ls->current) { - case 'a': c = '\a'; goto read_save; - case 'b': c = '\b'; goto read_save; - case 'f': c = '\f'; goto read_save; - case 'n': c = '\n'; goto read_save; - case 'r': c = '\r'; goto read_save; - case 't': c = '\t'; goto read_save; - case 'v': c = '\v'; goto read_save; - case 'x': c = readhexaesc(ls); goto read_save; - case '\n': case '\r': - inclinenumber(ls); c = '\n'; goto only_save; - case '\\': case '\"': case '\'': - c = ls->current; goto read_save; - case EOZ: goto no_save; /* will raise an error next loop */ - case 'z': { /* zap following span of spaces */ - next(ls); /* skip the 'z' */ - while (lisspace(ls->current)) { - if (currIsNewline(ls)) inclinenumber(ls); - else next(ls); - } - goto no_save; - } - default: { - if (!lisdigit(ls->current)) - escerror(ls, &ls->current, 1, "invalid escape sequence"); - /* digital escape \ddd */ - c = readdecesc(ls); - goto only_save; - } - } - read_save: next(ls); /* read next character */ - only_save: save(ls, c); /* save 'c' */ - no_save: break; - } - default: - save_and_next(ls); - } - } - save_and_next(ls); /* skip delimiter */ - seminfo->ts = luaX_newstring(ls, luaZ_buffer(ls->buff) + 1, - luaZ_bufflen(ls->buff) - 2); -} - - -static int llex (LexState *ls, SemInfo *seminfo) { - luaZ_resetbuffer(ls->buff); - for (;;) { - switch (ls->current) { - case '\n': case '\r': { /* line breaks */ - inclinenumber(ls); - break; - } - case ' ': case '\f': case '\t': case '\v': { /* spaces */ - next(ls); - break; - } - case '-': { /* '-' or '--' (comment) */ - next(ls); - if (ls->current != '-') return '-'; - /* else is a comment */ - next(ls); - if (ls->current == '[') { /* long comment? */ - int sep = skip_sep(ls); - luaZ_resetbuffer(ls->buff); /* `skip_sep' may dirty the buffer */ - if (sep >= 0) { - read_long_string(ls, NULL, sep); /* skip long comment */ - luaZ_resetbuffer(ls->buff); /* previous call may dirty the buff. */ - break; - } - } - /* else short comment */ - while (!currIsNewline(ls) && ls->current != EOZ) - next(ls); /* skip until end of line (or end of file) */ - break; - } - case '[': { /* long string or simply '[' */ - int sep = skip_sep(ls); - if (sep >= 0) { - read_long_string(ls, seminfo, sep); - return TK_STRING; - } - else if (sep == -1) return '['; - else lexerror(ls, "invalid long string delimiter", TK_STRING); - } - case '=': { - next(ls); - if (ls->current != '=') return '='; - else { next(ls); return TK_EQ; } - } - case '<': { - next(ls); - if (ls->current != '=') return '<'; - else { next(ls); return TK_LE; } - } - case '>': { - next(ls); - if (ls->current != '=') return '>'; - else { next(ls); return TK_GE; } - } - case '~': { - next(ls); - if (ls->current != '=') return '~'; - else { next(ls); return TK_NE; } - } - case ':': { - next(ls); - if (ls->current != ':') return ':'; - else { next(ls); return TK_DBCOLON; } - } - case '"': case '\'': { /* short literal strings */ - read_string(ls, ls->current, seminfo); - return TK_STRING; - } - case '.': { /* '.', '..', '...', or number */ - save_and_next(ls); - if (check_next(ls, ".")) { - if (check_next(ls, ".")) - return TK_DOTS; /* '...' */ - else return TK_CONCAT; /* '..' */ - } - else if (!lisdigit(ls->current)) return '.'; - /* else go through */ - } - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': { - read_numeral(ls, seminfo); - return TK_NUMBER; - } - case EOZ: { - return TK_EOS; - } - default: { - if (lislalpha(ls->current)) { /* identifier or reserved word? */ - TString *ts; - do { - save_and_next(ls); - } while (lislalnum(ls->current)); - ts = luaX_newstring(ls, luaZ_buffer(ls->buff), - luaZ_bufflen(ls->buff)); - seminfo->ts = ts; - if (isreserved(ts)) /* reserved word? */ - return ts->tsv.extra - 1 + FIRST_RESERVED; - else { - return TK_NAME; - } - } - else { /* single-char tokens (+ - / ...) */ - int c = ls->current; - next(ls); - return c; - } - } - } - } -} - - -void luaX_next (LexState *ls) { - ls->lastline = ls->linenumber; - if (ls->lookahead.token != TK_EOS) { /* is there a look-ahead token? */ - ls->t = ls->lookahead; /* use this one */ - ls->lookahead.token = TK_EOS; /* and discharge it */ - } - else - ls->t.token = llex(ls, &ls->t.seminfo); /* read next token */ -} - - -int luaX_lookahead (LexState *ls) { - lua_assert(ls->lookahead.token == TK_EOS); - ls->lookahead.token = llex(ls, &ls->lookahead.seminfo); - return ls->lookahead.token; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/llex.h b/Build/source/libs/lua52/lua52-src/src/llex.h deleted file mode 100644 index a4acdd30218..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/llex.h +++ /dev/null @@ -1,78 +0,0 @@ -/* -** $Id: llex.h,v 1.72.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lexical Analyzer -** See Copyright Notice in lua.h -*/ - -#ifndef llex_h -#define llex_h - -#include "lobject.h" -#include "lzio.h" - - -#define FIRST_RESERVED 257 - - - -/* -* WARNING: if you change the order of this enumeration, -* grep "ORDER RESERVED" -*/ -enum RESERVED { - /* terminal symbols denoted by reserved words */ - TK_AND = FIRST_RESERVED, TK_BREAK, - TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION, - TK_GOTO, TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT, - TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE, - /* other terminal symbols */ - TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_DBCOLON, TK_EOS, - TK_NUMBER, TK_NAME, TK_STRING -}; - -/* number of reserved words */ -#define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1)) - - -typedef union { - lua_Number r; - TString *ts; -} SemInfo; /* semantics information */ - - -typedef struct Token { - int token; - SemInfo seminfo; -} Token; - - -/* state of the lexer plus state of the parser when shared by all - functions */ -typedef struct LexState { - int current; /* current character (charint) */ - int linenumber; /* input line counter */ - int lastline; /* line of last token `consumed' */ - Token t; /* current token */ - Token lookahead; /* look ahead token */ - struct FuncState *fs; /* current function (parser) */ - struct lua_State *L; - ZIO *z; /* input stream */ - Mbuffer *buff; /* buffer for tokens */ - struct Dyndata *dyd; /* dynamic structures used by the parser */ - TString *source; /* current source name */ - TString *envn; /* environment variable name */ - char decpoint; /* locale decimal point */ -} LexState; - - -LUAI_FUNC void luaX_init (lua_State *L); -LUAI_FUNC void luaX_setinput (lua_State *L, LexState *ls, ZIO *z, - TString *source, int firstchar); -LUAI_FUNC TString *luaX_newstring (LexState *ls, const char *str, size_t l); -LUAI_FUNC void luaX_next (LexState *ls); -LUAI_FUNC int luaX_lookahead (LexState *ls); -LUAI_FUNC l_noret luaX_syntaxerror (LexState *ls, const char *s); -LUAI_FUNC const char *luaX_token2str (LexState *ls, int token); - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/llimits.h b/Build/source/libs/lua52/lua52-src/src/llimits.h deleted file mode 100644 index 152dd055154..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/llimits.h +++ /dev/null @@ -1,309 +0,0 @@ -/* -** $Id: llimits.h,v 1.103.1.1 2013/04/12 18:48:47 roberto Exp $ -** Limits, basic types, and some other `installation-dependent' definitions -** See Copyright Notice in lua.h -*/ - -#ifndef llimits_h -#define llimits_h - - -#include <limits.h> -#include <stddef.h> - - -#include "lua.h" - - -typedef unsigned LUA_INT32 lu_int32; - -typedef LUAI_UMEM lu_mem; - -typedef LUAI_MEM l_mem; - - - -/* chars used as small naturals (so that `char' is reserved for characters) */ -typedef unsigned char lu_byte; - - -#define MAX_SIZET ((size_t)(~(size_t)0)-2) - -#define MAX_LUMEM ((lu_mem)(~(lu_mem)0)-2) - -#define MAX_LMEM ((l_mem) ((MAX_LUMEM >> 1) - 2)) - - -#define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */ - -/* -** conversion of pointer to integer -** this is for hashing only; there is no problem if the integer -** cannot hold the whole pointer value -*/ -#define IntPoint(p) ((unsigned int)(lu_mem)(p)) - - - -/* type to ensure maximum alignment */ -#if !defined(LUAI_USER_ALIGNMENT_T) -#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; } -#endif - -typedef LUAI_USER_ALIGNMENT_T L_Umaxalign; - - -/* result of a `usual argument conversion' over lua_Number */ -typedef LUAI_UACNUMBER l_uacNumber; - - -/* internal assertions for in-house debugging */ -#if defined(lua_assert) -#define check_exp(c,e) (lua_assert(c), (e)) -/* to avoid problems with conditions too long */ -#define lua_longassert(c) { if (!(c)) lua_assert(0); } -#else -#define lua_assert(c) ((void)0) -#define check_exp(c,e) (e) -#define lua_longassert(c) ((void)0) -#endif - -/* -** assertion for checking API calls -*/ -#if !defined(luai_apicheck) - -#if defined(LUA_USE_APICHECK) -#include <assert.h> -#define luai_apicheck(L,e) assert(e) -#else -#define luai_apicheck(L,e) lua_assert(e) -#endif - -#endif - -#define api_check(l,e,msg) luai_apicheck(l,(e) && msg) - - -#if !defined(UNUSED) -#define UNUSED(x) ((void)(x)) /* to avoid warnings */ -#endif - - -#define cast(t, exp) ((t)(exp)) - -#define cast_byte(i) cast(lu_byte, (i)) -#define cast_num(i) cast(lua_Number, (i)) -#define cast_int(i) cast(int, (i)) -#define cast_uchar(i) cast(unsigned char, (i)) - - -/* -** non-return type -*/ -#if defined(__GNUC__) -#define l_noret void __attribute__((noreturn)) -#elif defined(_MSC_VER) -#define l_noret void __declspec(noreturn) -#else -#define l_noret void -#endif - - - -/* -** maximum depth for nested C calls and syntactical nested non-terminals -** in a program. (Value must fit in an unsigned short int.) -*/ -#if !defined(LUAI_MAXCCALLS) -#define LUAI_MAXCCALLS 200 -#endif - -/* -** maximum number of upvalues in a closure (both C and Lua). (Value -** must fit in an unsigned char.) -*/ -#define MAXUPVAL UCHAR_MAX - - -/* -** type for virtual-machine instructions -** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h) -*/ -typedef lu_int32 Instruction; - - - -/* maximum stack for a Lua function */ -#define MAXSTACK 250 - - - -/* minimum size for the string table (must be power of 2) */ -#if !defined(MINSTRTABSIZE) -#define MINSTRTABSIZE 32 -#endif - - -/* minimum size for string buffer */ -#if !defined(LUA_MINBUFFER) -#define LUA_MINBUFFER 32 -#endif - - -#if !defined(lua_lock) -#define lua_lock(L) ((void) 0) -#define lua_unlock(L) ((void) 0) -#endif - -#if !defined(luai_threadyield) -#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);} -#endif - - -/* -** these macros allow user-specific actions on threads when you defined -** LUAI_EXTRASPACE and need to do something extra when a thread is -** created/deleted/resumed/yielded. -*/ -#if !defined(luai_userstateopen) -#define luai_userstateopen(L) ((void)L) -#endif - -#if !defined(luai_userstateclose) -#define luai_userstateclose(L) ((void)L) -#endif - -#if !defined(luai_userstatethread) -#define luai_userstatethread(L,L1) ((void)L) -#endif - -#if !defined(luai_userstatefree) -#define luai_userstatefree(L,L1) ((void)L) -#endif - -#if !defined(luai_userstateresume) -#define luai_userstateresume(L,n) ((void)L) -#endif - -#if !defined(luai_userstateyield) -#define luai_userstateyield(L,n) ((void)L) -#endif - -/* -** lua_number2int is a macro to convert lua_Number to int. -** lua_number2integer is a macro to convert lua_Number to lua_Integer. -** lua_number2unsigned is a macro to convert a lua_Number to a lua_Unsigned. -** lua_unsigned2number is a macro to convert a lua_Unsigned to a lua_Number. -** luai_hashnum is a macro to hash a lua_Number value into an integer. -** The hash must be deterministic and give reasonable values for -** both small and large values (outside the range of integers). -*/ - -#if defined(MS_ASMTRICK) || defined(LUA_MSASMTRICK) /* { */ -/* trick with Microsoft assembler for X86 */ - -#define lua_number2int(i,n) __asm {__asm fld n __asm fistp i} -#define lua_number2integer(i,n) lua_number2int(i, n) -#define lua_number2unsigned(i,n) \ - {__int64 l; __asm {__asm fld n __asm fistp l} i = (unsigned int)l;} - - -#elif defined(LUA_IEEE754TRICK) /* }{ */ -/* the next trick should work on any machine using IEEE754 with - a 32-bit int type */ - -union luai_Cast { double l_d; LUA_INT32 l_p[2]; }; - -#if !defined(LUA_IEEEENDIAN) /* { */ -#define LUAI_EXTRAIEEE \ - static const union luai_Cast ieeeendian = {-(33.0 + 6755399441055744.0)}; -#define LUA_IEEEENDIANLOC (ieeeendian.l_p[1] == 33) -#else -#define LUA_IEEEENDIANLOC LUA_IEEEENDIAN -#define LUAI_EXTRAIEEE /* empty */ -#endif /* } */ - -#define lua_number2int32(i,n,t) \ - { LUAI_EXTRAIEEE \ - volatile union luai_Cast u; u.l_d = (n) + 6755399441055744.0; \ - (i) = (t)u.l_p[LUA_IEEEENDIANLOC]; } - -#define luai_hashnum(i,n) \ - { volatile union luai_Cast u; u.l_d = (n) + 1.0; /* avoid -0 */ \ - (i) = u.l_p[0]; (i) += u.l_p[1]; } /* add double bits for his hash */ - -#define lua_number2int(i,n) lua_number2int32(i, n, int) -#define lua_number2unsigned(i,n) lua_number2int32(i, n, lua_Unsigned) - -/* the trick can be expanded to lua_Integer when it is a 32-bit value */ -#if defined(LUA_IEEELL) -#define lua_number2integer(i,n) lua_number2int32(i, n, lua_Integer) -#endif - -#endif /* } */ - - -/* the following definitions always work, but may be slow */ - -#if !defined(lua_number2int) -#define lua_number2int(i,n) ((i)=(int)(n)) -#endif - -#if !defined(lua_number2integer) -#define lua_number2integer(i,n) ((i)=(lua_Integer)(n)) -#endif - -#if !defined(lua_number2unsigned) /* { */ -/* the following definition assures proper modulo behavior */ -#if defined(LUA_NUMBER_DOUBLE) || defined(LUA_NUMBER_FLOAT) -#include <math.h> -#define SUPUNSIGNED ((lua_Number)(~(lua_Unsigned)0) + 1) -#define lua_number2unsigned(i,n) \ - ((i)=(lua_Unsigned)((n) - floor((n)/SUPUNSIGNED)*SUPUNSIGNED)) -#else -#define lua_number2unsigned(i,n) ((i)=(lua_Unsigned)(n)) -#endif -#endif /* } */ - - -#if !defined(lua_unsigned2number) -/* on several machines, coercion from unsigned to double is slow, - so it may be worth to avoid */ -#define lua_unsigned2number(u) \ - (((u) <= (lua_Unsigned)INT_MAX) ? (lua_Number)(int)(u) : (lua_Number)(u)) -#endif - - - -#if defined(ltable_c) && !defined(luai_hashnum) - -#include <float.h> -#include <math.h> - -#define luai_hashnum(i,n) { int e; \ - n = l_mathop(frexp)(n, &e) * (lua_Number)(INT_MAX - DBL_MAX_EXP); \ - lua_number2int(i, n); i += e; } - -#endif - - - -/* -** macro to control inclusion of some hard tests on stack reallocation -*/ -#if !defined(HARDSTACKTESTS) -#define condmovestack(L) ((void)0) -#else -/* realloc stack keeping its size */ -#define condmovestack(L) luaD_reallocstack((L), (L)->stacksize) -#endif - -#if !defined(HARDMEMTESTS) -#define condchangemem(L) condmovestack(L) -#else -#define condchangemem(L) \ - ((void)(!(G(L)->gcrunning) || (luaC_fullgc(L, 0), 1))) -#endif - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lmathlib.c b/Build/source/libs/lua52/lua52-src/src/lmathlib.c deleted file mode 100644 index fe9fc5423d1..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lmathlib.c +++ /dev/null @@ -1,279 +0,0 @@ -/* -** $Id: lmathlib.c,v 1.83.1.1 2013/04/12 18:48:47 roberto Exp $ -** Standard mathematical library -** See Copyright Notice in lua.h -*/ - - -#include <stdlib.h> -#include <math.h> - -#define lmathlib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -#undef PI -#define PI ((lua_Number)(3.1415926535897932384626433832795)) -#define RADIANS_PER_DEGREE ((lua_Number)(PI/180.0)) - - - -static int math_abs (lua_State *L) { - lua_pushnumber(L, l_mathop(fabs)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_sin (lua_State *L) { - lua_pushnumber(L, l_mathop(sin)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_sinh (lua_State *L) { - lua_pushnumber(L, l_mathop(sinh)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_cos (lua_State *L) { - lua_pushnumber(L, l_mathop(cos)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_cosh (lua_State *L) { - lua_pushnumber(L, l_mathop(cosh)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_tan (lua_State *L) { - lua_pushnumber(L, l_mathop(tan)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_tanh (lua_State *L) { - lua_pushnumber(L, l_mathop(tanh)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_asin (lua_State *L) { - lua_pushnumber(L, l_mathop(asin)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_acos (lua_State *L) { - lua_pushnumber(L, l_mathop(acos)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_atan (lua_State *L) { - lua_pushnumber(L, l_mathop(atan)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_atan2 (lua_State *L) { - lua_pushnumber(L, l_mathop(atan2)(luaL_checknumber(L, 1), - luaL_checknumber(L, 2))); - return 1; -} - -static int math_ceil (lua_State *L) { - lua_pushnumber(L, l_mathop(ceil)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_floor (lua_State *L) { - lua_pushnumber(L, l_mathop(floor)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_fmod (lua_State *L) { - lua_pushnumber(L, l_mathop(fmod)(luaL_checknumber(L, 1), - luaL_checknumber(L, 2))); - return 1; -} - -static int math_modf (lua_State *L) { - lua_Number ip; - lua_Number fp = l_mathop(modf)(luaL_checknumber(L, 1), &ip); - lua_pushnumber(L, ip); - lua_pushnumber(L, fp); - return 2; -} - -static int math_sqrt (lua_State *L) { - lua_pushnumber(L, l_mathop(sqrt)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_pow (lua_State *L) { - lua_Number x = luaL_checknumber(L, 1); - lua_Number y = luaL_checknumber(L, 2); - lua_pushnumber(L, l_mathop(pow)(x, y)); - return 1; -} - -static int math_log (lua_State *L) { - lua_Number x = luaL_checknumber(L, 1); - lua_Number res; - if (lua_isnoneornil(L, 2)) - res = l_mathop(log)(x); - else { - lua_Number base = luaL_checknumber(L, 2); - if (base == (lua_Number)10.0) res = l_mathop(log10)(x); - else res = l_mathop(log)(x)/l_mathop(log)(base); - } - lua_pushnumber(L, res); - return 1; -} - -#if defined(LUA_COMPAT_LOG10) -static int math_log10 (lua_State *L) { - lua_pushnumber(L, l_mathop(log10)(luaL_checknumber(L, 1))); - return 1; -} -#endif - -static int math_exp (lua_State *L) { - lua_pushnumber(L, l_mathop(exp)(luaL_checknumber(L, 1))); - return 1; -} - -static int math_deg (lua_State *L) { - lua_pushnumber(L, luaL_checknumber(L, 1)/RADIANS_PER_DEGREE); - return 1; -} - -static int math_rad (lua_State *L) { - lua_pushnumber(L, luaL_checknumber(L, 1)*RADIANS_PER_DEGREE); - return 1; -} - -static int math_frexp (lua_State *L) { - int e; - lua_pushnumber(L, l_mathop(frexp)(luaL_checknumber(L, 1), &e)); - lua_pushinteger(L, e); - return 2; -} - -static int math_ldexp (lua_State *L) { - lua_Number x = luaL_checknumber(L, 1); - int ep = luaL_checkint(L, 2); - lua_pushnumber(L, l_mathop(ldexp)(x, ep)); - return 1; -} - - - -static int math_min (lua_State *L) { - int n = lua_gettop(L); /* number of arguments */ - lua_Number dmin = luaL_checknumber(L, 1); - int i; - for (i=2; i<=n; i++) { - lua_Number d = luaL_checknumber(L, i); - if (d < dmin) - dmin = d; - } - lua_pushnumber(L, dmin); - return 1; -} - - -static int math_max (lua_State *L) { - int n = lua_gettop(L); /* number of arguments */ - lua_Number dmax = luaL_checknumber(L, 1); - int i; - for (i=2; i<=n; i++) { - lua_Number d = luaL_checknumber(L, i); - if (d > dmax) - dmax = d; - } - lua_pushnumber(L, dmax); - return 1; -} - - -static int math_random (lua_State *L) { - /* the `%' avoids the (rare) case of r==1, and is needed also because on - some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */ - lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX; - switch (lua_gettop(L)) { /* check number of arguments */ - case 0: { /* no arguments */ - lua_pushnumber(L, r); /* Number between 0 and 1 */ - break; - } - case 1: { /* only upper limit */ - lua_Number u = luaL_checknumber(L, 1); - luaL_argcheck(L, (lua_Number)1.0 <= u, 1, "interval is empty"); - lua_pushnumber(L, l_mathop(floor)(r*u) + (lua_Number)(1.0)); /* [1, u] */ - break; - } - case 2: { /* lower and upper limits */ - lua_Number l = luaL_checknumber(L, 1); - lua_Number u = luaL_checknumber(L, 2); - luaL_argcheck(L, l <= u, 2, "interval is empty"); - lua_pushnumber(L, l_mathop(floor)(r*(u-l+1)) + l); /* [l, u] */ - break; - } - default: return luaL_error(L, "wrong number of arguments"); - } - return 1; -} - - -static int math_randomseed (lua_State *L) { - srand(luaL_checkunsigned(L, 1)); - (void)rand(); /* discard first value to avoid undesirable correlations */ - return 0; -} - - -static const luaL_Reg mathlib[] = { - {"abs", math_abs}, - {"acos", math_acos}, - {"asin", math_asin}, - {"atan2", math_atan2}, - {"atan", math_atan}, - {"ceil", math_ceil}, - {"cosh", math_cosh}, - {"cos", math_cos}, - {"deg", math_deg}, - {"exp", math_exp}, - {"floor", math_floor}, - {"fmod", math_fmod}, - {"frexp", math_frexp}, - {"ldexp", math_ldexp}, -#if defined(LUA_COMPAT_LOG10) - {"log10", math_log10}, -#endif - {"log", math_log}, - {"max", math_max}, - {"min", math_min}, - {"modf", math_modf}, - {"pow", math_pow}, - {"rad", math_rad}, - {"random", math_random}, - {"randomseed", math_randomseed}, - {"sinh", math_sinh}, - {"sin", math_sin}, - {"sqrt", math_sqrt}, - {"tanh", math_tanh}, - {"tan", math_tan}, - {NULL, NULL} -}; - - -/* -** Open math library -*/ -LUAMOD_API int luaopen_math (lua_State *L) { - luaL_newlib(L, mathlib); - lua_pushnumber(L, PI); - lua_setfield(L, -2, "pi"); - lua_pushnumber(L, HUGE_VAL); - lua_setfield(L, -2, "huge"); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lmem.c b/Build/source/libs/lua52/lua52-src/src/lmem.c deleted file mode 100644 index ee343e3e037..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lmem.c +++ /dev/null @@ -1,99 +0,0 @@ -/* -** $Id: lmem.c,v 1.84.1.1 2013/04/12 18:48:47 roberto Exp $ -** Interface to Memory Manager -** See Copyright Notice in lua.h -*/ - - -#include <stddef.h> - -#define lmem_c -#define LUA_CORE - -#include "lua.h" - -#include "ldebug.h" -#include "ldo.h" -#include "lgc.h" -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" - - - -/* -** About the realloc function: -** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize); -** (`osize' is the old size, `nsize' is the new size) -** -** * frealloc(ud, NULL, x, s) creates a new block of size `s' (no -** matter 'x'). -** -** * frealloc(ud, p, x, 0) frees the block `p' -** (in this specific case, frealloc must return NULL); -** particularly, frealloc(ud, NULL, 0, 0) does nothing -** (which is equivalent to free(NULL) in ANSI C) -** -** frealloc returns NULL if it cannot create or reallocate the area -** (any reallocation to an equal or smaller size cannot fail!) -*/ - - - -#define MINSIZEARRAY 4 - - -void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems, - int limit, const char *what) { - void *newblock; - int newsize; - if (*size >= limit/2) { /* cannot double it? */ - if (*size >= limit) /* cannot grow even a little? */ - luaG_runerror(L, "too many %s (limit is %d)", what, limit); - newsize = limit; /* still have at least one free place */ - } - else { - newsize = (*size)*2; - if (newsize < MINSIZEARRAY) - newsize = MINSIZEARRAY; /* minimum size */ - } - newblock = luaM_reallocv(L, block, *size, newsize, size_elems); - *size = newsize; /* update only when everything else is OK */ - return newblock; -} - - -l_noret luaM_toobig (lua_State *L) { - luaG_runerror(L, "memory allocation error: block too big"); -} - - - -/* -** generic allocation routine. -*/ -void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) { - void *newblock; - global_State *g = G(L); - size_t realosize = (block) ? osize : 0; - lua_assert((realosize == 0) == (block == NULL)); -#if defined(HARDMEMTESTS) - if (nsize > realosize && g->gcrunning) - luaC_fullgc(L, 1); /* force a GC whenever possible */ -#endif - newblock = (*g->frealloc)(g->ud, block, osize, nsize); - if (newblock == NULL && nsize > 0) { - api_check(L, nsize > realosize, - "realloc cannot fail when shrinking a block"); - if (g->gcrunning) { - luaC_fullgc(L, 1); /* try to free some memory... */ - newblock = (*g->frealloc)(g->ud, block, osize, nsize); /* try again */ - } - if (newblock == NULL) - luaD_throw(L, LUA_ERRMEM); - } - lua_assert((nsize == 0) == (newblock == NULL)); - g->GCdebt = (g->GCdebt + nsize) - realosize; - return newblock; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lmem.h b/Build/source/libs/lua52/lua52-src/src/lmem.h deleted file mode 100644 index bd4f4e0726f..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lmem.h +++ /dev/null @@ -1,57 +0,0 @@ -/* -** $Id: lmem.h,v 1.40.1.1 2013/04/12 18:48:47 roberto Exp $ -** Interface to Memory Manager -** See Copyright Notice in lua.h -*/ - -#ifndef lmem_h -#define lmem_h - - -#include <stddef.h> - -#include "llimits.h" -#include "lua.h" - - -/* -** This macro avoids the runtime division MAX_SIZET/(e), as 'e' is -** always constant. -** The macro is somewhat complex to avoid warnings: -** +1 avoids warnings of "comparison has constant result"; -** cast to 'void' avoids warnings of "value unused". -*/ -#define luaM_reallocv(L,b,on,n,e) \ - (cast(void, \ - (cast(size_t, (n)+1) > MAX_SIZET/(e)) ? (luaM_toobig(L), 0) : 0), \ - luaM_realloc_(L, (b), (on)*(e), (n)*(e))) - -#define luaM_freemem(L, b, s) luaM_realloc_(L, (b), (s), 0) -#define luaM_free(L, b) luaM_realloc_(L, (b), sizeof(*(b)), 0) -#define luaM_freearray(L, b, n) luaM_reallocv(L, (b), n, 0, sizeof((b)[0])) - -#define luaM_malloc(L,s) luaM_realloc_(L, NULL, 0, (s)) -#define luaM_new(L,t) cast(t *, luaM_malloc(L, sizeof(t))) -#define luaM_newvector(L,n,t) \ - cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t))) - -#define luaM_newobject(L,tag,s) luaM_realloc_(L, NULL, tag, (s)) - -#define luaM_growvector(L,v,nelems,size,t,limit,e) \ - if ((nelems)+1 > (size)) \ - ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e))) - -#define luaM_reallocvector(L, v,oldn,n,t) \ - ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t)))) - -LUAI_FUNC l_noret luaM_toobig (lua_State *L); - -/* not to be called directly */ -LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize, - size_t size); -LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size, - size_t size_elem, int limit, - const char *what); - -#endif - diff --git a/Build/source/libs/lua52/lua52-src/src/loadlib.c b/Build/source/libs/lua52/lua52-src/src/loadlib.c deleted file mode 100644 index bedbea3e9a7..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/loadlib.c +++ /dev/null @@ -1,725 +0,0 @@ -/* -** $Id: loadlib.c,v 1.111.1.1 2013/04/12 18:48:47 roberto Exp $ -** Dynamic library loader for Lua -** See Copyright Notice in lua.h -** -** This module contains an implementation of loadlib for Unix systems -** that have dlfcn, an implementation for Windows, and a stub for other -** systems. -*/ - - -/* -** if needed, includes windows header before everything else -*/ -#if defined(_WIN32) -#include <windows.h> -#endif - - -#include <stdlib.h> -#include <string.h> - - -#define loadlib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -/* -** LUA_PATH and LUA_CPATH are the names of the environment -** variables that Lua check to set its paths. -*/ -#if !defined(LUA_PATH) -#define LUA_PATH "LUA_PATH" -#endif - -#if !defined(LUA_CPATH) -#define LUA_CPATH "LUA_CPATH" -#endif - -#define LUA_PATHSUFFIX "_" LUA_VERSION_MAJOR "_" LUA_VERSION_MINOR - -#define LUA_PATHVERSION LUA_PATH LUA_PATHSUFFIX -#define LUA_CPATHVERSION LUA_CPATH LUA_PATHSUFFIX - -/* -** LUA_PATH_SEP is the character that separates templates in a path. -** LUA_PATH_MARK is the string that marks the substitution points in a -** template. -** LUA_EXEC_DIR in a Windows path is replaced by the executable's -** directory. -** LUA_IGMARK is a mark to ignore all before it when building the -** luaopen_ function name. -*/ -#if !defined (LUA_PATH_SEP) -#define LUA_PATH_SEP ";" -#endif -#if !defined (LUA_PATH_MARK) -#define LUA_PATH_MARK "?" -#endif -#if !defined (LUA_EXEC_DIR) -#define LUA_EXEC_DIR "!" -#endif -#if !defined (LUA_IGMARK) -#define LUA_IGMARK "-" -#endif - - -/* -** LUA_CSUBSEP is the character that replaces dots in submodule names -** when searching for a C loader. -** LUA_LSUBSEP is the character that replaces dots in submodule names -** when searching for a Lua loader. -*/ -#if !defined(LUA_CSUBSEP) -#define LUA_CSUBSEP LUA_DIRSEP -#endif - -#if !defined(LUA_LSUBSEP) -#define LUA_LSUBSEP LUA_DIRSEP -#endif - - -/* prefix for open functions in C libraries */ -#define LUA_POF "luaopen_" - -/* separator for open functions in C libraries */ -#define LUA_OFSEP "_" - - -/* table (in the registry) that keeps handles for all loaded C libraries */ -#define CLIBS "_CLIBS" - -#define LIB_FAIL "open" - - -/* error codes for ll_loadfunc */ -#define ERRLIB 1 -#define ERRFUNC 2 - -#define setprogdir(L) ((void)0) - - -/* -** system-dependent functions -*/ -static void ll_unloadlib (void *lib); -static void *ll_load (lua_State *L, const char *path, int seeglb); -static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym); - - - -#if defined(LUA_USE_DLOPEN) -/* -** {======================================================================== -** This is an implementation of loadlib based on the dlfcn interface. -** The dlfcn interface is available in Linux, SunOS, Solaris, IRIX, FreeBSD, -** NetBSD, AIX 4.2, HPUX 11, and probably most other Unix flavors, at least -** as an emulation layer on top of native functions. -** ========================================================================= -*/ - -#include <dlfcn.h> - -static void ll_unloadlib (void *lib) { - dlclose(lib); -} - - -static void *ll_load (lua_State *L, const char *path, int seeglb) { - void *lib = dlopen(path, RTLD_NOW | (seeglb ? RTLD_GLOBAL : RTLD_LOCAL)); - if (lib == NULL) lua_pushstring(L, dlerror()); - return lib; -} - - -static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { - lua_CFunction f = (lua_CFunction)dlsym(lib, sym); - if (f == NULL) lua_pushstring(L, dlerror()); - return f; -} - -/* }====================================================== */ - - - -#elif defined(LUA_DL_DLL) -/* -** {====================================================================== -** This is an implementation of loadlib for Windows using native functions. -** ======================================================================= -*/ - -#undef setprogdir - -/* -** optional flags for LoadLibraryEx -*/ -#if !defined(LUA_LLE_FLAGS) -#define LUA_LLE_FLAGS 0 -#endif - - -static void setprogdir (lua_State *L) { - char buff[MAX_PATH + 1]; - char *lb; - DWORD nsize = sizeof(buff)/sizeof(char); - DWORD n = GetModuleFileNameA(NULL, buff, nsize); - if (n == 0 || n == nsize || (lb = strrchr(buff, '\\')) == NULL) - luaL_error(L, "unable to get ModuleFileName"); - else { - *lb = '\0'; - luaL_gsub(L, lua_tostring(L, -1), LUA_EXEC_DIR, buff); - lua_remove(L, -2); /* remove original string */ - } -} - - -static void pusherror (lua_State *L) { - int error = GetLastError(); - char buffer[128]; - if (FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM, - NULL, error, 0, buffer, sizeof(buffer)/sizeof(char), NULL)) - lua_pushstring(L, buffer); - else - lua_pushfstring(L, "system error %d\n", error); -} - -static void ll_unloadlib (void *lib) { - FreeLibrary((HMODULE)lib); -} - - -static void *ll_load (lua_State *L, const char *path, int seeglb) { - HMODULE lib = LoadLibraryExA(path, NULL, LUA_LLE_FLAGS); - (void)(seeglb); /* not used: symbols are 'global' by default */ - if (lib == NULL) pusherror(L); - return lib; -} - - -static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { - lua_CFunction f = (lua_CFunction)GetProcAddress((HMODULE)lib, sym); - if (f == NULL) pusherror(L); - return f; -} - -/* }====================================================== */ - - -#else -/* -** {====================================================== -** Fallback for other systems -** ======================================================= -*/ - -#undef LIB_FAIL -#define LIB_FAIL "absent" - - -#define DLMSG "dynamic libraries not enabled; check your Lua installation" - - -static void ll_unloadlib (void *lib) { - (void)(lib); /* not used */ -} - - -static void *ll_load (lua_State *L, const char *path, int seeglb) { - (void)(path); (void)(seeglb); /* not used */ - lua_pushliteral(L, DLMSG); - return NULL; -} - - -static lua_CFunction ll_sym (lua_State *L, void *lib, const char *sym) { - (void)(lib); (void)(sym); /* not used */ - lua_pushliteral(L, DLMSG); - return NULL; -} - -/* }====================================================== */ -#endif - - -static void *ll_checkclib (lua_State *L, const char *path) { - void *plib; - lua_getfield(L, LUA_REGISTRYINDEX, CLIBS); - lua_getfield(L, -1, path); - plib = lua_touserdata(L, -1); /* plib = CLIBS[path] */ - lua_pop(L, 2); /* pop CLIBS table and 'plib' */ - return plib; -} - - -static void ll_addtoclib (lua_State *L, const char *path, void *plib) { - lua_getfield(L, LUA_REGISTRYINDEX, CLIBS); - lua_pushlightuserdata(L, plib); - lua_pushvalue(L, -1); - lua_setfield(L, -3, path); /* CLIBS[path] = plib */ - lua_rawseti(L, -2, luaL_len(L, -2) + 1); /* CLIBS[#CLIBS + 1] = plib */ - lua_pop(L, 1); /* pop CLIBS table */ -} - - -/* -** __gc tag method for CLIBS table: calls 'll_unloadlib' for all lib -** handles in list CLIBS -*/ -static int gctm (lua_State *L) { - int n = luaL_len(L, 1); - for (; n >= 1; n--) { /* for each handle, in reverse order */ - lua_rawgeti(L, 1, n); /* get handle CLIBS[n] */ - ll_unloadlib(lua_touserdata(L, -1)); - lua_pop(L, 1); /* pop handle */ - } - return 0; -} - - -static int ll_loadfunc (lua_State *L, const char *path, const char *sym) { - void *reg = ll_checkclib(L, path); /* check loaded C libraries */ - if (reg == NULL) { /* must load library? */ - reg = ll_load(L, path, *sym == '*'); - if (reg == NULL) return ERRLIB; /* unable to load library */ - ll_addtoclib(L, path, reg); - } - if (*sym == '*') { /* loading only library (no function)? */ - lua_pushboolean(L, 1); /* return 'true' */ - return 0; /* no errors */ - } - else { - lua_CFunction f = ll_sym(L, reg, sym); - if (f == NULL) - return ERRFUNC; /* unable to find function */ - lua_pushcfunction(L, f); /* else create new function */ - return 0; /* no errors */ - } -} - - -static int ll_loadlib (lua_State *L) { - const char *path = luaL_checkstring(L, 1); - const char *init = luaL_checkstring(L, 2); - int stat = ll_loadfunc(L, path, init); - if (stat == 0) /* no errors? */ - return 1; /* return the loaded function */ - else { /* error; error message is on stack top */ - lua_pushnil(L); - lua_insert(L, -2); - lua_pushstring(L, (stat == ERRLIB) ? LIB_FAIL : "init"); - return 3; /* return nil, error message, and where */ - } -} - - - -/* -** {====================================================== -** 'require' function -** ======================================================= -*/ - - -static int readable (const char *filename) { - FILE *f = fopen(filename, "r"); /* try to open file */ - if (f == NULL) return 0; /* open failed */ - fclose(f); - return 1; -} - - -static const char *pushnexttemplate (lua_State *L, const char *path) { - const char *l; - while (*path == *LUA_PATH_SEP) path++; /* skip separators */ - if (*path == '\0') return NULL; /* no more templates */ - l = strchr(path, *LUA_PATH_SEP); /* find next separator */ - if (l == NULL) l = path + strlen(path); - lua_pushlstring(L, path, l - path); /* template */ - return l; -} - - -static const char *searchpath (lua_State *L, const char *name, - const char *path, - const char *sep, - const char *dirsep) { - luaL_Buffer msg; /* to build error message */ - luaL_buffinit(L, &msg); - if (*sep != '\0') /* non-empty separator? */ - name = luaL_gsub(L, name, sep, dirsep); /* replace it by 'dirsep' */ - while ((path = pushnexttemplate(L, path)) != NULL) { - const char *filename = luaL_gsub(L, lua_tostring(L, -1), - LUA_PATH_MARK, name); - lua_remove(L, -2); /* remove path template */ - if (readable(filename)) /* does file exist and is readable? */ - return filename; /* return that file name */ - lua_pushfstring(L, "\n\tno file " LUA_QS, filename); - lua_remove(L, -2); /* remove file name */ - luaL_addvalue(&msg); /* concatenate error msg. entry */ - } - luaL_pushresult(&msg); /* create error message */ - return NULL; /* not found */ -} - - -static int ll_searchpath (lua_State *L) { - const char *f = searchpath(L, luaL_checkstring(L, 1), - luaL_checkstring(L, 2), - luaL_optstring(L, 3, "."), - luaL_optstring(L, 4, LUA_DIRSEP)); - if (f != NULL) return 1; - else { /* error message is on top of the stack */ - lua_pushnil(L); - lua_insert(L, -2); - return 2; /* return nil + error message */ - } -} - - -static const char *findfile (lua_State *L, const char *name, - const char *pname, - const char *dirsep) { - const char *path; - lua_getfield(L, lua_upvalueindex(1), pname); - path = lua_tostring(L, -1); - if (path == NULL) - luaL_error(L, LUA_QL("package.%s") " must be a string", pname); - return searchpath(L, name, path, ".", dirsep); -} - - -static int checkload (lua_State *L, int stat, const char *filename) { - if (stat) { /* module loaded successfully? */ - lua_pushstring(L, filename); /* will be 2nd argument to module */ - return 2; /* return open function and file name */ - } - else - return luaL_error(L, "error loading module " LUA_QS - " from file " LUA_QS ":\n\t%s", - lua_tostring(L, 1), filename, lua_tostring(L, -1)); -} - - -static int searcher_Lua (lua_State *L) { - const char *filename; - const char *name = luaL_checkstring(L, 1); - filename = findfile(L, name, "path", LUA_LSUBSEP); - if (filename == NULL) return 1; /* module not found in this path */ - return checkload(L, (luaL_loadfile(L, filename) == LUA_OK), filename); -} - - -static int loadfunc (lua_State *L, const char *filename, const char *modname) { - const char *funcname; - const char *mark; - modname = luaL_gsub(L, modname, ".", LUA_OFSEP); - mark = strchr(modname, *LUA_IGMARK); - if (mark) { - int stat; - funcname = lua_pushlstring(L, modname, mark - modname); - funcname = lua_pushfstring(L, LUA_POF"%s", funcname); - stat = ll_loadfunc(L, filename, funcname); - if (stat != ERRFUNC) return stat; - modname = mark + 1; /* else go ahead and try old-style name */ - } - funcname = lua_pushfstring(L, LUA_POF"%s", modname); - return ll_loadfunc(L, filename, funcname); -} - - -static int searcher_C (lua_State *L) { - const char *name = luaL_checkstring(L, 1); - const char *filename = findfile(L, name, "cpath", LUA_CSUBSEP); - if (filename == NULL) return 1; /* module not found in this path */ - return checkload(L, (loadfunc(L, filename, name) == 0), filename); -} - - -static int searcher_Croot (lua_State *L) { - const char *filename; - const char *name = luaL_checkstring(L, 1); - const char *p = strchr(name, '.'); - int stat; - if (p == NULL) return 0; /* is root */ - lua_pushlstring(L, name, p - name); - filename = findfile(L, lua_tostring(L, -1), "cpath", LUA_CSUBSEP); - if (filename == NULL) return 1; /* root not found */ - if ((stat = loadfunc(L, filename, name)) != 0) { - if (stat != ERRFUNC) - return checkload(L, 0, filename); /* real error */ - else { /* open function not found */ - lua_pushfstring(L, "\n\tno module " LUA_QS " in file " LUA_QS, - name, filename); - return 1; - } - } - lua_pushstring(L, filename); /* will be 2nd argument to module */ - return 2; -} - - -static int searcher_preload (lua_State *L) { - const char *name = luaL_checkstring(L, 1); - lua_getfield(L, LUA_REGISTRYINDEX, "_PRELOAD"); - lua_getfield(L, -1, name); - if (lua_isnil(L, -1)) /* not found? */ - lua_pushfstring(L, "\n\tno field package.preload['%s']", name); - return 1; -} - - -static void findloader (lua_State *L, const char *name) { - int i; - luaL_Buffer msg; /* to build error message */ - luaL_buffinit(L, &msg); - lua_getfield(L, lua_upvalueindex(1), "searchers"); /* will be at index 3 */ - if (!lua_istable(L, 3)) - luaL_error(L, LUA_QL("package.searchers") " must be a table"); - /* iterate over available searchers to find a loader */ - for (i = 1; ; i++) { - lua_rawgeti(L, 3, i); /* get a searcher */ - if (lua_isnil(L, -1)) { /* no more searchers? */ - lua_pop(L, 1); /* remove nil */ - luaL_pushresult(&msg); /* create error message */ - luaL_error(L, "module " LUA_QS " not found:%s", - name, lua_tostring(L, -1)); - } - lua_pushstring(L, name); - lua_call(L, 1, 2); /* call it */ - if (lua_isfunction(L, -2)) /* did it find a loader? */ - return; /* module loader found */ - else if (lua_isstring(L, -2)) { /* searcher returned error message? */ - lua_pop(L, 1); /* remove extra return */ - luaL_addvalue(&msg); /* concatenate error message */ - } - else - lua_pop(L, 2); /* remove both returns */ - } -} - - -static int ll_require (lua_State *L) { - const char *name = luaL_checkstring(L, 1); - lua_settop(L, 1); /* _LOADED table will be at index 2 */ - lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED"); - lua_getfield(L, 2, name); /* _LOADED[name] */ - if (lua_toboolean(L, -1)) /* is it there? */ - return 1; /* package is already loaded */ - /* else must load package */ - lua_pop(L, 1); /* remove 'getfield' result */ - findloader(L, name); - lua_pushstring(L, name); /* pass name as argument to module loader */ - lua_insert(L, -2); /* name is 1st argument (before search data) */ - lua_call(L, 2, 1); /* run loader to load module */ - if (!lua_isnil(L, -1)) /* non-nil return? */ - lua_setfield(L, 2, name); /* _LOADED[name] = returned value */ - lua_getfield(L, 2, name); - if (lua_isnil(L, -1)) { /* module did not set a value? */ - lua_pushboolean(L, 1); /* use true as result */ - lua_pushvalue(L, -1); /* extra copy to be returned */ - lua_setfield(L, 2, name); /* _LOADED[name] = true */ - } - return 1; -} - -/* }====================================================== */ - - - -/* -** {====================================================== -** 'module' function -** ======================================================= -*/ -#if defined(LUA_COMPAT_MODULE) - -/* -** changes the environment variable of calling function -*/ -static void set_env (lua_State *L) { - lua_Debug ar; - if (lua_getstack(L, 1, &ar) == 0 || - lua_getinfo(L, "f", &ar) == 0 || /* get calling function */ - lua_iscfunction(L, -1)) - luaL_error(L, LUA_QL("module") " not called from a Lua function"); - lua_pushvalue(L, -2); /* copy new environment table to top */ - lua_setupvalue(L, -2, 1); - lua_pop(L, 1); /* remove function */ -} - - -static void dooptions (lua_State *L, int n) { - int i; - for (i = 2; i <= n; i++) { - if (lua_isfunction(L, i)) { /* avoid 'calling' extra info. */ - lua_pushvalue(L, i); /* get option (a function) */ - lua_pushvalue(L, -2); /* module */ - lua_call(L, 1, 0); - } - } -} - - -static void modinit (lua_State *L, const char *modname) { - const char *dot; - lua_pushvalue(L, -1); - lua_setfield(L, -2, "_M"); /* module._M = module */ - lua_pushstring(L, modname); - lua_setfield(L, -2, "_NAME"); - dot = strrchr(modname, '.'); /* look for last dot in module name */ - if (dot == NULL) dot = modname; - else dot++; - /* set _PACKAGE as package name (full module name minus last part) */ - lua_pushlstring(L, modname, dot - modname); - lua_setfield(L, -2, "_PACKAGE"); -} - - -static int ll_module (lua_State *L) { - const char *modname = luaL_checkstring(L, 1); - int lastarg = lua_gettop(L); /* last parameter */ - luaL_pushmodule(L, modname, 1); /* get/create module table */ - /* check whether table already has a _NAME field */ - lua_getfield(L, -1, "_NAME"); - if (!lua_isnil(L, -1)) /* is table an initialized module? */ - lua_pop(L, 1); - else { /* no; initialize it */ - lua_pop(L, 1); - modinit(L, modname); - } - lua_pushvalue(L, -1); - set_env(L); - dooptions(L, lastarg); - return 1; -} - - -static int ll_seeall (lua_State *L) { - luaL_checktype(L, 1, LUA_TTABLE); - if (!lua_getmetatable(L, 1)) { - lua_createtable(L, 0, 1); /* create new metatable */ - lua_pushvalue(L, -1); - lua_setmetatable(L, 1); - } - lua_pushglobaltable(L); - lua_setfield(L, -2, "__index"); /* mt.__index = _G */ - return 0; -} - -#endif -/* }====================================================== */ - - - -/* auxiliary mark (for internal use) */ -#define AUXMARK "\1" - - -/* -** return registry.LUA_NOENV as a boolean -*/ -static int noenv (lua_State *L) { - int b; - lua_getfield(L, LUA_REGISTRYINDEX, "LUA_NOENV"); - b = lua_toboolean(L, -1); - lua_pop(L, 1); /* remove value */ - return b; -} - - -static void setpath (lua_State *L, const char *fieldname, const char *envname1, - const char *envname2, const char *def) { - const char *path = getenv(envname1); - if (path == NULL) /* no environment variable? */ - path = getenv(envname2); /* try alternative name */ - if (path == NULL || noenv(L)) /* no environment variable? */ - lua_pushstring(L, def); /* use default */ - else { - /* replace ";;" by ";AUXMARK;" and then AUXMARK by default path */ - path = luaL_gsub(L, path, LUA_PATH_SEP LUA_PATH_SEP, - LUA_PATH_SEP AUXMARK LUA_PATH_SEP); - luaL_gsub(L, path, AUXMARK, def); - lua_remove(L, -2); - } - setprogdir(L); - lua_setfield(L, -2, fieldname); -} - - -static const luaL_Reg pk_funcs[] = { - {"loadlib", ll_loadlib}, - {"searchpath", ll_searchpath}, -#if defined(LUA_COMPAT_MODULE) - {"seeall", ll_seeall}, -#endif - {NULL, NULL} -}; - - -static const luaL_Reg ll_funcs[] = { -#if defined(LUA_COMPAT_MODULE) - {"module", ll_module}, -#endif - {"require", ll_require}, - {NULL, NULL} -}; - - -static void createsearcherstable (lua_State *L) { - static const lua_CFunction searchers[] = - {searcher_preload, searcher_Lua, searcher_C, searcher_Croot, NULL}; - int i; - /* create 'searchers' table */ - lua_createtable(L, sizeof(searchers)/sizeof(searchers[0]) - 1, 0); - /* fill it with pre-defined searchers */ - for (i=0; searchers[i] != NULL; i++) { - lua_pushvalue(L, -2); /* set 'package' as upvalue for all searchers */ - lua_pushcclosure(L, searchers[i], 1); - lua_rawseti(L, -2, i+1); - } -} - - -LUAMOD_API int luaopen_package (lua_State *L) { - /* create table CLIBS to keep track of loaded C libraries */ - luaL_getsubtable(L, LUA_REGISTRYINDEX, CLIBS); - lua_createtable(L, 0, 1); /* metatable for CLIBS */ - lua_pushcfunction(L, gctm); - lua_setfield(L, -2, "__gc"); /* set finalizer for CLIBS table */ - lua_setmetatable(L, -2); - /* create `package' table */ - luaL_newlib(L, pk_funcs); - createsearcherstable(L); -#if defined(LUA_COMPAT_LOADERS) - lua_pushvalue(L, -1); /* make a copy of 'searchers' table */ - lua_setfield(L, -3, "loaders"); /* put it in field `loaders' */ -#endif - lua_setfield(L, -2, "searchers"); /* put it in field 'searchers' */ - /* set field 'path' */ - setpath(L, "path", LUA_PATHVERSION, LUA_PATH, LUA_PATH_DEFAULT); - /* set field 'cpath' */ - setpath(L, "cpath", LUA_CPATHVERSION, LUA_CPATH, LUA_CPATH_DEFAULT); - /* store config information */ - lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n" - LUA_EXEC_DIR "\n" LUA_IGMARK "\n"); - lua_setfield(L, -2, "config"); - /* set field `loaded' */ - luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED"); - lua_setfield(L, -2, "loaded"); - /* set field `preload' */ - luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD"); - lua_setfield(L, -2, "preload"); - lua_pushglobaltable(L); - lua_pushvalue(L, -2); /* set 'package' as upvalue for next lib */ - luaL_setfuncs(L, ll_funcs, 1); /* open lib into global table */ - lua_pop(L, 1); /* pop global table */ - return 1; /* return 'package' table */ -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lobject.c b/Build/source/libs/lua52/lua52-src/src/lobject.c deleted file mode 100644 index 882d994d413..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lobject.c +++ /dev/null @@ -1,287 +0,0 @@ -/* -** $Id: lobject.c,v 2.58.1.1 2013/04/12 18:48:47 roberto Exp $ -** Some generic functions over Lua objects -** See Copyright Notice in lua.h -*/ - -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define lobject_c -#define LUA_CORE - -#include "lua.h" - -#include "lctype.h" -#include "ldebug.h" -#include "ldo.h" -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" -#include "lvm.h" - - - -LUAI_DDEF const TValue luaO_nilobject_ = {NILCONSTANT}; - - -/* -** converts an integer to a "floating point byte", represented as -** (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if -** eeeee != 0 and (xxx) otherwise. -*/ -int luaO_int2fb (unsigned int x) { - int e = 0; /* exponent */ - if (x < 8) return x; - while (x >= 0x10) { - x = (x+1) >> 1; - e++; - } - return ((e+1) << 3) | (cast_int(x) - 8); -} - - -/* converts back */ -int luaO_fb2int (int x) { - int e = (x >> 3) & 0x1f; - if (e == 0) return x; - else return ((x & 7) + 8) << (e - 1); -} - - -int luaO_ceillog2 (unsigned int x) { - static const lu_byte log_2[256] = { - 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5, - 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8 - }; - int l = 0; - x--; - while (x >= 256) { l += 8; x >>= 8; } - return l + log_2[x]; -} - - -lua_Number luaO_arith (int op, lua_Number v1, lua_Number v2) { - switch (op) { - case LUA_OPADD: return luai_numadd(NULL, v1, v2); - case LUA_OPSUB: return luai_numsub(NULL, v1, v2); - case LUA_OPMUL: return luai_nummul(NULL, v1, v2); - case LUA_OPDIV: return luai_numdiv(NULL, v1, v2); - case LUA_OPMOD: return luai_nummod(NULL, v1, v2); - case LUA_OPPOW: return luai_numpow(NULL, v1, v2); - case LUA_OPUNM: return luai_numunm(NULL, v1); - default: lua_assert(0); return 0; - } -} - - -int luaO_hexavalue (int c) { - if (lisdigit(c)) return c - '0'; - else return ltolower(c) - 'a' + 10; -} - - -#if !defined(lua_strx2number) - -#include <math.h> - - -static int isneg (const char **s) { - if (**s == '-') { (*s)++; return 1; } - else if (**s == '+') (*s)++; - return 0; -} - - -static lua_Number readhexa (const char **s, lua_Number r, int *count) { - for (; lisxdigit(cast_uchar(**s)); (*s)++) { /* read integer part */ - r = (r * cast_num(16.0)) + cast_num(luaO_hexavalue(cast_uchar(**s))); - (*count)++; - } - return r; -} - - -/* -** convert an hexadecimal numeric string to a number, following -** C99 specification for 'strtod' -*/ -static lua_Number lua_strx2number (const char *s, char **endptr) { - lua_Number r = 0.0; - int e = 0, i = 0; - int neg = 0; /* 1 if number is negative */ - *endptr = cast(char *, s); /* nothing is valid yet */ - while (lisspace(cast_uchar(*s))) s++; /* skip initial spaces */ - neg = isneg(&s); /* check signal */ - if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X'))) /* check '0x' */ - return 0.0; /* invalid format (no '0x') */ - s += 2; /* skip '0x' */ - r = readhexa(&s, r, &i); /* read integer part */ - if (*s == '.') { - s++; /* skip dot */ - r = readhexa(&s, r, &e); /* read fractional part */ - } - if (i == 0 && e == 0) - return 0.0; /* invalid format (no digit) */ - e *= -4; /* each fractional digit divides value by 2^-4 */ - *endptr = cast(char *, s); /* valid up to here */ - if (*s == 'p' || *s == 'P') { /* exponent part? */ - int exp1 = 0; - int neg1; - s++; /* skip 'p' */ - neg1 = isneg(&s); /* signal */ - if (!lisdigit(cast_uchar(*s))) - goto ret; /* must have at least one digit */ - while (lisdigit(cast_uchar(*s))) /* read exponent */ - exp1 = exp1 * 10 + *(s++) - '0'; - if (neg1) exp1 = -exp1; - e += exp1; - } - *endptr = cast(char *, s); /* valid up to here */ - ret: - if (neg) r = -r; - return l_mathop(ldexp)(r, e); -} - -#endif - - -int luaO_str2d (const char *s, size_t len, lua_Number *result) { - char *endptr; - if (strpbrk(s, "nN")) /* reject 'inf' and 'nan' */ - return 0; - else if (strpbrk(s, "xX")) /* hexa? */ - *result = lua_strx2number(s, &endptr); - else - *result = lua_str2number(s, &endptr); - if (endptr == s) return 0; /* nothing recognized */ - while (lisspace(cast_uchar(*endptr))) endptr++; - return (endptr == s + len); /* OK if no trailing characters */ -} - - - -static void pushstr (lua_State *L, const char *str, size_t l) { - setsvalue2s(L, L->top++, luaS_newlstr(L, str, l)); -} - - -/* this function handles only `%d', `%c', %f, %p, and `%s' formats */ -const char *luaO_pushvfstring (lua_State *L, const char *fmt, va_list argp) { - int n = 0; - for (;;) { - const char *e = strchr(fmt, '%'); - if (e == NULL) break; - luaD_checkstack(L, 2); /* fmt + item */ - pushstr(L, fmt, e - fmt); - switch (*(e+1)) { - case 's': { - const char *s = va_arg(argp, char *); - if (s == NULL) s = "(null)"; - pushstr(L, s, strlen(s)); - break; - } - case 'c': { - char buff; - buff = cast(char, va_arg(argp, int)); - pushstr(L, &buff, 1); - break; - } - case 'd': { - setnvalue(L->top++, cast_num(va_arg(argp, int))); - break; - } - case 'f': { - setnvalue(L->top++, cast_num(va_arg(argp, l_uacNumber))); - break; - } - case 'p': { - char buff[4*sizeof(void *) + 8]; /* should be enough space for a `%p' */ - int l = sprintf(buff, "%p", va_arg(argp, void *)); - pushstr(L, buff, l); - break; - } - case '%': { - pushstr(L, "%", 1); - break; - } - default: { - luaG_runerror(L, - "invalid option " LUA_QL("%%%c") " to " LUA_QL("lua_pushfstring"), - *(e + 1)); - } - } - n += 2; - fmt = e+2; - } - luaD_checkstack(L, 1); - pushstr(L, fmt, strlen(fmt)); - if (n > 0) luaV_concat(L, n + 1); - return svalue(L->top - 1); -} - - -const char *luaO_pushfstring (lua_State *L, const char *fmt, ...) { - const char *msg; - va_list argp; - va_start(argp, fmt); - msg = luaO_pushvfstring(L, fmt, argp); - va_end(argp); - return msg; -} - - -/* number of chars of a literal string without the ending \0 */ -#define LL(x) (sizeof(x)/sizeof(char) - 1) - -#define RETS "..." -#define PRE "[string \"" -#define POS "\"]" - -#define addstr(a,b,l) ( memcpy(a,b,(l) * sizeof(char)), a += (l) ) - -void luaO_chunkid (char *out, const char *source, size_t bufflen) { - size_t l = strlen(source); - if (*source == '=') { /* 'literal' source */ - if (l <= bufflen) /* small enough? */ - memcpy(out, source + 1, l * sizeof(char)); - else { /* truncate it */ - addstr(out, source + 1, bufflen - 1); - *out = '\0'; - } - } - else if (*source == '@') { /* file name */ - if (l <= bufflen) /* small enough? */ - memcpy(out, source + 1, l * sizeof(char)); - else { /* add '...' before rest of name */ - addstr(out, RETS, LL(RETS)); - bufflen -= LL(RETS); - memcpy(out, source + 1 + l - bufflen, bufflen * sizeof(char)); - } - } - else { /* string; format as [string "source"] */ - const char *nl = strchr(source, '\n'); /* find first new line (if any) */ - addstr(out, PRE, LL(PRE)); /* add prefix */ - bufflen -= LL(PRE RETS POS) + 1; /* save space for prefix+suffix+'\0' */ - if (l < bufflen && nl == NULL) { /* small one-line source? */ - addstr(out, source, l); /* keep it */ - } - else { - if (nl != NULL) l = nl - source; /* stop at first newline */ - if (l > bufflen) l = bufflen; - addstr(out, source, l); - addstr(out, RETS, LL(RETS)); - } - memcpy(out, POS, (LL(POS) + 1) * sizeof(char)); - } -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lobject.h b/Build/source/libs/lua52/lua52-src/src/lobject.h deleted file mode 100644 index bc0bb69f1f4..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lobject.h +++ /dev/null @@ -1,607 +0,0 @@ -/* -** $Id: lobject.h,v 2.71.1.2 2014/05/07 14:14:58 roberto Exp $ -** Type definitions for Lua objects -** See Copyright Notice in lua.h -*/ - - -#ifndef lobject_h -#define lobject_h - - -#include <stdarg.h> - - -#include "llimits.h" -#include "lua.h" - - -/* -** Extra tags for non-values -*/ -#define LUA_TPROTO LUA_NUMTAGS -#define LUA_TUPVAL (LUA_NUMTAGS+1) -#define LUA_TDEADKEY (LUA_NUMTAGS+2) - -/* -** number of all possible tags (including LUA_TNONE but excluding DEADKEY) -*/ -#define LUA_TOTALTAGS (LUA_TUPVAL+2) - - -/* -** tags for Tagged Values have the following use of bits: -** bits 0-3: actual tag (a LUA_T* value) -** bits 4-5: variant bits -** bit 6: whether value is collectable -*/ - -#define VARBITS (3 << 4) - - -/* -** LUA_TFUNCTION variants: -** 0 - Lua function -** 1 - light C function -** 2 - regular C function (closure) -*/ - -/* Variant tags for functions */ -#define LUA_TLCL (LUA_TFUNCTION | (0 << 4)) /* Lua closure */ -#define LUA_TLCF (LUA_TFUNCTION | (1 << 4)) /* light C function */ -#define LUA_TCCL (LUA_TFUNCTION | (2 << 4)) /* C closure */ - - -/* Variant tags for strings */ -#define LUA_TSHRSTR (LUA_TSTRING | (0 << 4)) /* short strings */ -#define LUA_TLNGSTR (LUA_TSTRING | (1 << 4)) /* long strings */ - - -/* Bit mark for collectable types */ -#define BIT_ISCOLLECTABLE (1 << 6) - -/* mark a tag as collectable */ -#define ctb(t) ((t) | BIT_ISCOLLECTABLE) - - -/* -** Union of all collectable objects -*/ -typedef union GCObject GCObject; - - -/* -** Common Header for all collectable objects (in macro form, to be -** included in other objects) -*/ -#define CommonHeader GCObject *next; lu_byte tt; lu_byte marked - - -/* -** Common header in struct form -*/ -typedef struct GCheader { - CommonHeader; -} GCheader; - - - -/* -** Union of all Lua values -*/ -typedef union Value Value; - - -#define numfield lua_Number n; /* numbers */ - - - -/* -** Tagged Values. This is the basic representation of values in Lua, -** an actual value plus a tag with its type. -*/ - -#define TValuefields Value value_; int tt_ - -typedef struct lua_TValue TValue; - - -/* macro defining a nil value */ -#define NILCONSTANT {NULL}, LUA_TNIL - - -#define val_(o) ((o)->value_) -#define num_(o) (val_(o).n) - - -/* raw type tag of a TValue */ -#define rttype(o) ((o)->tt_) - -/* tag with no variants (bits 0-3) */ -#define novariant(x) ((x) & 0x0F) - -/* type tag of a TValue (bits 0-3 for tags + variant bits 4-5) */ -#define ttype(o) (rttype(o) & 0x3F) - -/* type tag of a TValue with no variants (bits 0-3) */ -#define ttypenv(o) (novariant(rttype(o))) - - -/* Macros to test type */ -#define checktag(o,t) (rttype(o) == (t)) -#define checktype(o,t) (ttypenv(o) == (t)) -#define ttisnumber(o) checktag((o), LUA_TNUMBER) -#define ttisnil(o) checktag((o), LUA_TNIL) -#define ttisboolean(o) checktag((o), LUA_TBOOLEAN) -#define ttislightuserdata(o) checktag((o), LUA_TLIGHTUSERDATA) -#define ttisstring(o) checktype((o), LUA_TSTRING) -#define ttisshrstring(o) checktag((o), ctb(LUA_TSHRSTR)) -#define ttislngstring(o) checktag((o), ctb(LUA_TLNGSTR)) -#define ttistable(o) checktag((o), ctb(LUA_TTABLE)) -#define ttisfunction(o) checktype(o, LUA_TFUNCTION) -#define ttisclosure(o) ((rttype(o) & 0x1F) == LUA_TFUNCTION) -#define ttisCclosure(o) checktag((o), ctb(LUA_TCCL)) -#define ttisLclosure(o) checktag((o), ctb(LUA_TLCL)) -#define ttislcf(o) checktag((o), LUA_TLCF) -#define ttisuserdata(o) checktag((o), ctb(LUA_TUSERDATA)) -#define ttisthread(o) checktag((o), ctb(LUA_TTHREAD)) -#define ttisdeadkey(o) checktag((o), LUA_TDEADKEY) - -#define ttisequal(o1,o2) (rttype(o1) == rttype(o2)) - -/* Macros to access values */ -#define nvalue(o) check_exp(ttisnumber(o), num_(o)) -#define gcvalue(o) check_exp(iscollectable(o), val_(o).gc) -#define pvalue(o) check_exp(ttislightuserdata(o), val_(o).p) -#define rawtsvalue(o) check_exp(ttisstring(o), &val_(o).gc->ts) -#define tsvalue(o) (&rawtsvalue(o)->tsv) -#define rawuvalue(o) check_exp(ttisuserdata(o), &val_(o).gc->u) -#define uvalue(o) (&rawuvalue(o)->uv) -#define clvalue(o) check_exp(ttisclosure(o), &val_(o).gc->cl) -#define clLvalue(o) check_exp(ttisLclosure(o), &val_(o).gc->cl.l) -#define clCvalue(o) check_exp(ttisCclosure(o), &val_(o).gc->cl.c) -#define fvalue(o) check_exp(ttislcf(o), val_(o).f) -#define hvalue(o) check_exp(ttistable(o), &val_(o).gc->h) -#define bvalue(o) check_exp(ttisboolean(o), val_(o).b) -#define thvalue(o) check_exp(ttisthread(o), &val_(o).gc->th) -/* a dead value may get the 'gc' field, but cannot access its contents */ -#define deadvalue(o) check_exp(ttisdeadkey(o), cast(void *, val_(o).gc)) - -#define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0)) - - -#define iscollectable(o) (rttype(o) & BIT_ISCOLLECTABLE) - - -/* Macros for internal tests */ -#define righttt(obj) (ttype(obj) == gcvalue(obj)->gch.tt) - -#define checkliveness(g,obj) \ - lua_longassert(!iscollectable(obj) || \ - (righttt(obj) && !isdead(g,gcvalue(obj)))) - - -/* Macros to set values */ -#define settt_(o,t) ((o)->tt_=(t)) - -#define setnvalue(obj,x) \ - { TValue *io=(obj); num_(io)=(x); settt_(io, LUA_TNUMBER); } - -#define setnilvalue(obj) settt_(obj, LUA_TNIL) - -#define setfvalue(obj,x) \ - { TValue *io=(obj); val_(io).f=(x); settt_(io, LUA_TLCF); } - -#define setpvalue(obj,x) \ - { TValue *io=(obj); val_(io).p=(x); settt_(io, LUA_TLIGHTUSERDATA); } - -#define setbvalue(obj,x) \ - { TValue *io=(obj); val_(io).b=(x); settt_(io, LUA_TBOOLEAN); } - -#define setgcovalue(L,obj,x) \ - { TValue *io=(obj); GCObject *i_g=(x); \ - val_(io).gc=i_g; settt_(io, ctb(gch(i_g)->tt)); } - -#define setsvalue(L,obj,x) \ - { TValue *io=(obj); \ - TString *x_ = (x); \ - val_(io).gc=cast(GCObject *, x_); settt_(io, ctb(x_->tsv.tt)); \ - checkliveness(G(L),io); } - -#define setuvalue(L,obj,x) \ - { TValue *io=(obj); \ - val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TUSERDATA)); \ - checkliveness(G(L),io); } - -#define setthvalue(L,obj,x) \ - { TValue *io=(obj); \ - val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TTHREAD)); \ - checkliveness(G(L),io); } - -#define setclLvalue(L,obj,x) \ - { TValue *io=(obj); \ - val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TLCL)); \ - checkliveness(G(L),io); } - -#define setclCvalue(L,obj,x) \ - { TValue *io=(obj); \ - val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TCCL)); \ - checkliveness(G(L),io); } - -#define sethvalue(L,obj,x) \ - { TValue *io=(obj); \ - val_(io).gc=cast(GCObject *, (x)); settt_(io, ctb(LUA_TTABLE)); \ - checkliveness(G(L),io); } - -#define setdeadvalue(obj) settt_(obj, LUA_TDEADKEY) - - - -#define setobj(L,obj1,obj2) \ - { const TValue *io2=(obj2); TValue *io1=(obj1); \ - io1->value_ = io2->value_; io1->tt_ = io2->tt_; \ - checkliveness(G(L),io1); } - - -/* -** different types of assignments, according to destination -*/ - -/* from stack to (same) stack */ -#define setobjs2s setobj -/* to stack (not from same stack) */ -#define setobj2s setobj -#define setsvalue2s setsvalue -#define sethvalue2s sethvalue -#define setptvalue2s setptvalue -/* from table to same table */ -#define setobjt2t setobj -/* to table */ -#define setobj2t setobj -/* to new object */ -#define setobj2n setobj -#define setsvalue2n setsvalue - - -/* check whether a number is valid (useful only for NaN trick) */ -#define luai_checknum(L,o,c) { /* empty */ } - - -/* -** {====================================================== -** NaN Trick -** ======================================================= -*/ -#if defined(LUA_NANTRICK) - -/* -** numbers are represented in the 'd_' field. All other values have the -** value (NNMARK | tag) in 'tt__'. A number with such pattern would be -** a "signaled NaN", which is never generated by regular operations by -** the CPU (nor by 'strtod') -*/ - -/* allows for external implementation for part of the trick */ -#if !defined(NNMARK) /* { */ - - -#if !defined(LUA_IEEEENDIAN) -#error option 'LUA_NANTRICK' needs 'LUA_IEEEENDIAN' -#endif - - -#define NNMARK 0x7FF7A500 -#define NNMASK 0x7FFFFF00 - -#undef TValuefields -#undef NILCONSTANT - -#if (LUA_IEEEENDIAN == 0) /* { */ - -/* little endian */ -#define TValuefields \ - union { struct { Value v__; int tt__; } i; double d__; } u -#define NILCONSTANT {{{NULL}, tag2tt(LUA_TNIL)}} -/* field-access macros */ -#define v_(o) ((o)->u.i.v__) -#define d_(o) ((o)->u.d__) -#define tt_(o) ((o)->u.i.tt__) - -#else /* }{ */ - -/* big endian */ -#define TValuefields \ - union { struct { int tt__; Value v__; } i; double d__; } u -#define NILCONSTANT {{tag2tt(LUA_TNIL), {NULL}}} -/* field-access macros */ -#define v_(o) ((o)->u.i.v__) -#define d_(o) ((o)->u.d__) -#define tt_(o) ((o)->u.i.tt__) - -#endif /* } */ - -#endif /* } */ - - -/* correspondence with standard representation */ -#undef val_ -#define val_(o) v_(o) -#undef num_ -#define num_(o) d_(o) - - -#undef numfield -#define numfield /* no such field; numbers are the entire struct */ - -/* basic check to distinguish numbers from non-numbers */ -#undef ttisnumber -#define ttisnumber(o) ((tt_(o) & NNMASK) != NNMARK) - -#define tag2tt(t) (NNMARK | (t)) - -#undef rttype -#define rttype(o) (ttisnumber(o) ? LUA_TNUMBER : tt_(o) & 0xff) - -#undef settt_ -#define settt_(o,t) (tt_(o) = tag2tt(t)) - -#undef setnvalue -#define setnvalue(obj,x) \ - { TValue *io_=(obj); num_(io_)=(x); lua_assert(ttisnumber(io_)); } - -#undef setobj -#define setobj(L,obj1,obj2) \ - { const TValue *o2_=(obj2); TValue *o1_=(obj1); \ - o1_->u = o2_->u; \ - checkliveness(G(L),o1_); } - - -/* -** these redefinitions are not mandatory, but these forms are more efficient -*/ - -#undef checktag -#undef checktype -#define checktag(o,t) (tt_(o) == tag2tt(t)) -#define checktype(o,t) (ctb(tt_(o) | VARBITS) == ctb(tag2tt(t) | VARBITS)) - -#undef ttisequal -#define ttisequal(o1,o2) \ - (ttisnumber(o1) ? ttisnumber(o2) : (tt_(o1) == tt_(o2))) - - -#undef luai_checknum -#define luai_checknum(L,o,c) { if (!ttisnumber(o)) c; } - -#endif -/* }====================================================== */ - - - -/* -** {====================================================== -** types and prototypes -** ======================================================= -*/ - - -union Value { - GCObject *gc; /* collectable objects */ - void *p; /* light userdata */ - int b; /* booleans */ - lua_CFunction f; /* light C functions */ - numfield /* numbers */ -}; - - -struct lua_TValue { - TValuefields; -}; - - -typedef TValue *StkId; /* index to stack elements */ - - - - -/* -** Header for string value; string bytes follow the end of this structure -*/ -typedef union TString { - L_Umaxalign dummy; /* ensures maximum alignment for strings */ - struct { - CommonHeader; - lu_byte extra; /* reserved words for short strings; "has hash" for longs */ - unsigned int hash; - size_t len; /* number of characters in string */ - } tsv; -} TString; - - -/* get the actual string (array of bytes) from a TString */ -#define getstr(ts) cast(const char *, (ts) + 1) - -/* get the actual string (array of bytes) from a Lua value */ -#define svalue(o) getstr(rawtsvalue(o)) - - -/* -** Header for userdata; memory area follows the end of this structure -*/ -typedef union Udata { - L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */ - struct { - CommonHeader; - struct Table *metatable; - struct Table *env; - size_t len; /* number of bytes */ - } uv; -} Udata; - - - -/* -** Description of an upvalue for function prototypes -*/ -typedef struct Upvaldesc { - TString *name; /* upvalue name (for debug information) */ - lu_byte instack; /* whether it is in stack */ - lu_byte idx; /* index of upvalue (in stack or in outer function's list) */ -} Upvaldesc; - - -/* -** Description of a local variable for function prototypes -** (used for debug information) -*/ -typedef struct LocVar { - TString *varname; - int startpc; /* first point where variable is active */ - int endpc; /* first point where variable is dead */ -} LocVar; - - -/* -** Function Prototypes -*/ -typedef struct Proto { - CommonHeader; - TValue *k; /* constants used by the function */ - Instruction *code; - struct Proto **p; /* functions defined inside the function */ - int *lineinfo; /* map from opcodes to source lines (debug information) */ - LocVar *locvars; /* information about local variables (debug information) */ - Upvaldesc *upvalues; /* upvalue information */ - union Closure *cache; /* last created closure with this prototype */ - TString *source; /* used for debug information */ - int sizeupvalues; /* size of 'upvalues' */ - int sizek; /* size of `k' */ - int sizecode; - int sizelineinfo; - int sizep; /* size of `p' */ - int sizelocvars; - int linedefined; - int lastlinedefined; - GCObject *gclist; - lu_byte numparams; /* number of fixed parameters */ - lu_byte is_vararg; - lu_byte maxstacksize; /* maximum stack used by this function */ -} Proto; - - - -/* -** Lua Upvalues -*/ -typedef struct UpVal { - CommonHeader; - TValue *v; /* points to stack or to its own value */ - union { - TValue value; /* the value (when closed) */ - struct { /* double linked list (when open) */ - struct UpVal *prev; - struct UpVal *next; - } l; - } u; -} UpVal; - - -/* -** Closures -*/ - -#define ClosureHeader \ - CommonHeader; lu_byte nupvalues; GCObject *gclist - -typedef struct CClosure { - ClosureHeader; - lua_CFunction f; - TValue upvalue[1]; /* list of upvalues */ -} CClosure; - - -typedef struct LClosure { - ClosureHeader; - struct Proto *p; - UpVal *upvals[1]; /* list of upvalues */ -} LClosure; - - -typedef union Closure { - CClosure c; - LClosure l; -} Closure; - - -#define isLfunction(o) ttisLclosure(o) - -#define getproto(o) (clLvalue(o)->p) - - -/* -** Tables -*/ - -typedef union TKey { - struct { - TValuefields; - struct Node *next; /* for chaining */ - } nk; - TValue tvk; -} TKey; - - -typedef struct Node { - TValue i_val; - TKey i_key; -} Node; - - -typedef struct Table { - CommonHeader; - lu_byte flags; /* 1<<p means tagmethod(p) is not present */ - lu_byte lsizenode; /* log2 of size of `node' array */ - int sizearray; /* size of `array' array */ - TValue *array; /* array part */ - Node *node; - Node *lastfree; /* any free position is before this position */ - struct Table *metatable; - GCObject *gclist; -} Table; - - - -/* -** `module' operation for hashing (size is always a power of 2) -*/ -#define lmod(s,size) \ - (check_exp((size&(size-1))==0, (cast(int, (s) & ((size)-1))))) - - -#define twoto(x) (1<<(x)) -#define sizenode(t) (twoto((t)->lsizenode)) - - -/* -** (address of) a fixed nil value -*/ -#define luaO_nilobject (&luaO_nilobject_) - - -LUAI_DDEC const TValue luaO_nilobject_; - - -LUAI_FUNC int luaO_int2fb (unsigned int x); -LUAI_FUNC int luaO_fb2int (int x); -LUAI_FUNC int luaO_ceillog2 (unsigned int x); -LUAI_FUNC lua_Number luaO_arith (int op, lua_Number v1, lua_Number v2); -LUAI_FUNC int luaO_str2d (const char *s, size_t len, lua_Number *result); -LUAI_FUNC int luaO_hexavalue (int c); -LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt, - va_list argp); -LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...); -LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len); - - -#endif - diff --git a/Build/source/libs/lua52/lua52-src/src/lopcodes.c b/Build/source/libs/lua52/lua52-src/src/lopcodes.c deleted file mode 100644 index 4190dc76242..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lopcodes.c +++ /dev/null @@ -1,107 +0,0 @@ -/* -** $Id: lopcodes.c,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $ -** Opcodes for Lua virtual machine -** See Copyright Notice in lua.h -*/ - - -#define lopcodes_c -#define LUA_CORE - - -#include "lopcodes.h" - - -/* ORDER OP */ - -LUAI_DDEF const char *const luaP_opnames[NUM_OPCODES+1] = { - "MOVE", - "LOADK", - "LOADKX", - "LOADBOOL", - "LOADNIL", - "GETUPVAL", - "GETTABUP", - "GETTABLE", - "SETTABUP", - "SETUPVAL", - "SETTABLE", - "NEWTABLE", - "SELF", - "ADD", - "SUB", - "MUL", - "DIV", - "MOD", - "POW", - "UNM", - "NOT", - "LEN", - "CONCAT", - "JMP", - "EQ", - "LT", - "LE", - "TEST", - "TESTSET", - "CALL", - "TAILCALL", - "RETURN", - "FORLOOP", - "FORPREP", - "TFORCALL", - "TFORLOOP", - "SETLIST", - "CLOSURE", - "VARARG", - "EXTRAARG", - NULL -}; - - -#define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m)) - -LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = { -/* T A B C mode opcode */ - opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_MOVE */ - ,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_LOADK */ - ,opmode(0, 1, OpArgN, OpArgN, iABx) /* OP_LOADKX */ - ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_LOADBOOL */ - ,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_LOADNIL */ - ,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_GETUPVAL */ - ,opmode(0, 1, OpArgU, OpArgK, iABC) /* OP_GETTABUP */ - ,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_GETTABLE */ - ,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABUP */ - ,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_SETUPVAL */ - ,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABLE */ - ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_NEWTABLE */ - ,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_SELF */ - ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_ADD */ - ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_SUB */ - ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MUL */ - ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_DIV */ - ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MOD */ - ,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_POW */ - ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_UNM */ - ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_NOT */ - ,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LEN */ - ,opmode(0, 1, OpArgR, OpArgR, iABC) /* OP_CONCAT */ - ,opmode(0, 0, OpArgR, OpArgN, iAsBx) /* OP_JMP */ - ,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_EQ */ - ,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LT */ - ,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LE */ - ,opmode(1, 0, OpArgN, OpArgU, iABC) /* OP_TEST */ - ,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TESTSET */ - ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_CALL */ - ,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_TAILCALL */ - ,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RETURN */ - ,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORLOOP */ - ,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORPREP */ - ,opmode(0, 0, OpArgN, OpArgU, iABC) /* OP_TFORCALL */ - ,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_TFORLOOP */ - ,opmode(0, 0, OpArgU, OpArgU, iABC) /* OP_SETLIST */ - ,opmode(0, 1, OpArgU, OpArgN, iABx) /* OP_CLOSURE */ - ,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_VARARG */ - ,opmode(0, 0, OpArgU, OpArgU, iAx) /* OP_EXTRAARG */ -}; - diff --git a/Build/source/libs/lua52/lua52-src/src/lopcodes.h b/Build/source/libs/lua52/lua52-src/src/lopcodes.h deleted file mode 100644 index c801757668b..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lopcodes.h +++ /dev/null @@ -1,288 +0,0 @@ -/* -** $Id: lopcodes.h,v 1.142.1.2 2014/10/20 18:32:09 roberto Exp $ -** Opcodes for Lua virtual machine -** See Copyright Notice in lua.h -*/ - -#ifndef lopcodes_h -#define lopcodes_h - -#include "llimits.h" - - -/*=========================================================================== - We assume that instructions are unsigned numbers. - All instructions have an opcode in the first 6 bits. - Instructions can have the following fields: - `A' : 8 bits - `B' : 9 bits - `C' : 9 bits - 'Ax' : 26 bits ('A', 'B', and 'C' together) - `Bx' : 18 bits (`B' and `C' together) - `sBx' : signed Bx - - A signed argument is represented in excess K; that is, the number - value is the unsigned value minus K. K is exactly the maximum value - for that argument (so that -max is represented by 0, and +max is - represented by 2*max), which is half the maximum for the corresponding - unsigned argument. -===========================================================================*/ - - -enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */ - - -/* -** size and position of opcode arguments. -*/ -#define SIZE_C 9 -#define SIZE_B 9 -#define SIZE_Bx (SIZE_C + SIZE_B) -#define SIZE_A 8 -#define SIZE_Ax (SIZE_C + SIZE_B + SIZE_A) - -#define SIZE_OP 6 - -#define POS_OP 0 -#define POS_A (POS_OP + SIZE_OP) -#define POS_C (POS_A + SIZE_A) -#define POS_B (POS_C + SIZE_C) -#define POS_Bx POS_C -#define POS_Ax POS_A - - -/* -** limits for opcode arguments. -** we use (signed) int to manipulate most arguments, -** so they must fit in LUAI_BITSINT-1 bits (-1 for sign) -*/ -#if SIZE_Bx < LUAI_BITSINT-1 -#define MAXARG_Bx ((1<<SIZE_Bx)-1) -#define MAXARG_sBx (MAXARG_Bx>>1) /* `sBx' is signed */ -#else -#define MAXARG_Bx MAX_INT -#define MAXARG_sBx MAX_INT -#endif - -#if SIZE_Ax < LUAI_BITSINT-1 -#define MAXARG_Ax ((1<<SIZE_Ax)-1) -#else -#define MAXARG_Ax MAX_INT -#endif - - -#define MAXARG_A ((1<<SIZE_A)-1) -#define MAXARG_B ((1<<SIZE_B)-1) -#define MAXARG_C ((1<<SIZE_C)-1) - - -/* creates a mask with `n' 1 bits at position `p' */ -#define MASK1(n,p) ((~((~(Instruction)0)<<(n)))<<(p)) - -/* creates a mask with `n' 0 bits at position `p' */ -#define MASK0(n,p) (~MASK1(n,p)) - -/* -** the following macros help to manipulate instructions -*/ - -#define GET_OPCODE(i) (cast(OpCode, ((i)>>POS_OP) & MASK1(SIZE_OP,0))) -#define SET_OPCODE(i,o) ((i) = (((i)&MASK0(SIZE_OP,POS_OP)) | \ - ((cast(Instruction, o)<<POS_OP)&MASK1(SIZE_OP,POS_OP)))) - -#define getarg(i,pos,size) (cast(int, ((i)>>pos) & MASK1(size,0))) -#define setarg(i,v,pos,size) ((i) = (((i)&MASK0(size,pos)) | \ - ((cast(Instruction, v)<<pos)&MASK1(size,pos)))) - -#define GETARG_A(i) getarg(i, POS_A, SIZE_A) -#define SETARG_A(i,v) setarg(i, v, POS_A, SIZE_A) - -#define GETARG_B(i) getarg(i, POS_B, SIZE_B) -#define SETARG_B(i,v) setarg(i, v, POS_B, SIZE_B) - -#define GETARG_C(i) getarg(i, POS_C, SIZE_C) -#define SETARG_C(i,v) setarg(i, v, POS_C, SIZE_C) - -#define GETARG_Bx(i) getarg(i, POS_Bx, SIZE_Bx) -#define SETARG_Bx(i,v) setarg(i, v, POS_Bx, SIZE_Bx) - -#define GETARG_Ax(i) getarg(i, POS_Ax, SIZE_Ax) -#define SETARG_Ax(i,v) setarg(i, v, POS_Ax, SIZE_Ax) - -#define GETARG_sBx(i) (GETARG_Bx(i)-MAXARG_sBx) -#define SETARG_sBx(i,b) SETARG_Bx((i),cast(unsigned int, (b)+MAXARG_sBx)) - - -#define CREATE_ABC(o,a,b,c) ((cast(Instruction, o)<<POS_OP) \ - | (cast(Instruction, a)<<POS_A) \ - | (cast(Instruction, b)<<POS_B) \ - | (cast(Instruction, c)<<POS_C)) - -#define CREATE_ABx(o,a,bc) ((cast(Instruction, o)<<POS_OP) \ - | (cast(Instruction, a)<<POS_A) \ - | (cast(Instruction, bc)<<POS_Bx)) - -#define CREATE_Ax(o,a) ((cast(Instruction, o)<<POS_OP) \ - | (cast(Instruction, a)<<POS_Ax)) - - -/* -** Macros to operate RK indices -*/ - -/* this bit 1 means constant (0 means register) */ -#define BITRK (1 << (SIZE_B - 1)) - -/* test whether value is a constant */ -#define ISK(x) ((x) & BITRK) - -/* gets the index of the constant */ -#define INDEXK(r) ((int)(r) & ~BITRK) - -#define MAXINDEXRK (BITRK - 1) - -/* code a constant index as a RK value */ -#define RKASK(x) ((x) | BITRK) - - -/* -** invalid register that fits in 8 bits -*/ -#define NO_REG MAXARG_A - - -/* -** R(x) - register -** Kst(x) - constant (in constant table) -** RK(x) == if ISK(x) then Kst(INDEXK(x)) else R(x) -*/ - - -/* -** grep "ORDER OP" if you change these enums -*/ - -typedef enum { -/*---------------------------------------------------------------------- -name args description -------------------------------------------------------------------------*/ -OP_MOVE,/* A B R(A) := R(B) */ -OP_LOADK,/* A Bx R(A) := Kst(Bx) */ -OP_LOADKX,/* A R(A) := Kst(extra arg) */ -OP_LOADBOOL,/* A B C R(A) := (Bool)B; if (C) pc++ */ -OP_LOADNIL,/* A B R(A), R(A+1), ..., R(A+B) := nil */ -OP_GETUPVAL,/* A B R(A) := UpValue[B] */ - -OP_GETTABUP,/* A B C R(A) := UpValue[B][RK(C)] */ -OP_GETTABLE,/* A B C R(A) := R(B)[RK(C)] */ - -OP_SETTABUP,/* A B C UpValue[A][RK(B)] := RK(C) */ -OP_SETUPVAL,/* A B UpValue[B] := R(A) */ -OP_SETTABLE,/* A B C R(A)[RK(B)] := RK(C) */ - -OP_NEWTABLE,/* A B C R(A) := {} (size = B,C) */ - -OP_SELF,/* A B C R(A+1) := R(B); R(A) := R(B)[RK(C)] */ - -OP_ADD,/* A B C R(A) := RK(B) + RK(C) */ -OP_SUB,/* A B C R(A) := RK(B) - RK(C) */ -OP_MUL,/* A B C R(A) := RK(B) * RK(C) */ -OP_DIV,/* A B C R(A) := RK(B) / RK(C) */ -OP_MOD,/* A B C R(A) := RK(B) % RK(C) */ -OP_POW,/* A B C R(A) := RK(B) ^ RK(C) */ -OP_UNM,/* A B R(A) := -R(B) */ -OP_NOT,/* A B R(A) := not R(B) */ -OP_LEN,/* A B R(A) := length of R(B) */ - -OP_CONCAT,/* A B C R(A) := R(B).. ... ..R(C) */ - -OP_JMP,/* A sBx pc+=sBx; if (A) close all upvalues >= R(A - 1) */ -OP_EQ,/* A B C if ((RK(B) == RK(C)) ~= A) then pc++ */ -OP_LT,/* A B C if ((RK(B) < RK(C)) ~= A) then pc++ */ -OP_LE,/* A B C if ((RK(B) <= RK(C)) ~= A) then pc++ */ - -OP_TEST,/* A C if not (R(A) <=> C) then pc++ */ -OP_TESTSET,/* A B C if (R(B) <=> C) then R(A) := R(B) else pc++ */ - -OP_CALL,/* A B C R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */ -OP_TAILCALL,/* A B C return R(A)(R(A+1), ... ,R(A+B-1)) */ -OP_RETURN,/* A B return R(A), ... ,R(A+B-2) (see note) */ - -OP_FORLOOP,/* A sBx R(A)+=R(A+2); - if R(A) <?= R(A+1) then { pc+=sBx; R(A+3)=R(A) }*/ -OP_FORPREP,/* A sBx R(A)-=R(A+2); pc+=sBx */ - -OP_TFORCALL,/* A C R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2)); */ -OP_TFORLOOP,/* A sBx if R(A+1) ~= nil then { R(A)=R(A+1); pc += sBx }*/ - -OP_SETLIST,/* A B C R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B */ - -OP_CLOSURE,/* A Bx R(A) := closure(KPROTO[Bx]) */ - -OP_VARARG,/* A B R(A), R(A+1), ..., R(A+B-2) = vararg */ - -OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */ -} OpCode; - - -#define NUM_OPCODES (cast(int, OP_EXTRAARG) + 1) - - - -/*=========================================================================== - Notes: - (*) In OP_CALL, if (B == 0) then B = top. If (C == 0), then `top' is - set to last_result+1, so next open instruction (OP_CALL, OP_RETURN, - OP_SETLIST) may use `top'. - - (*) In OP_VARARG, if (B == 0) then use actual number of varargs and - set top (like in OP_CALL with C == 0). - - (*) In OP_RETURN, if (B == 0) then return up to `top'. - - (*) In OP_SETLIST, if (B == 0) then B = `top'; if (C == 0) then next - 'instruction' is EXTRAARG(real C). - - (*) In OP_LOADKX, the next 'instruction' is always EXTRAARG. - - (*) For comparisons, A specifies what condition the test should accept - (true or false). - - (*) All `skips' (pc++) assume that next instruction is a jump. - -===========================================================================*/ - - -/* -** masks for instruction properties. The format is: -** bits 0-1: op mode -** bits 2-3: C arg mode -** bits 4-5: B arg mode -** bit 6: instruction set register A -** bit 7: operator is a test (next instruction must be a jump) -*/ - -enum OpArgMask { - OpArgN, /* argument is not used */ - OpArgU, /* argument is used */ - OpArgR, /* argument is a register or a jump offset */ - OpArgK /* argument is a constant or register/constant */ -}; - -LUA_API const lu_byte luaP_opmodes[NUM_OPCODES]; - -#define getOpMode(m) (cast(enum OpMode, luaP_opmodes[m] & 3)) -#define getBMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 4) & 3)) -#define getCMode(m) (cast(enum OpArgMask, (luaP_opmodes[m] >> 2) & 3)) -#define testAMode(m) (luaP_opmodes[m] & (1 << 6)) -#define testTMode(m) (luaP_opmodes[m] & (1 << 7)) - - -LUA_API const char *const luaP_opnames[NUM_OPCODES+1]; /* opcode names */ - - -/* number of list items to accumulate before a SETLIST instruction */ -#define LFIELDS_PER_FLUSH 50 - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/loslib.c b/Build/source/libs/lua52/lua52-src/src/loslib.c deleted file mode 100644 index 052ba174413..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/loslib.c +++ /dev/null @@ -1,323 +0,0 @@ -/* -** $Id: loslib.c,v 1.40.1.1 2013/04/12 18:48:47 roberto Exp $ -** Standard Operating System library -** See Copyright Notice in lua.h -*/ - - -#include <errno.h> -#include <locale.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> - -#define loslib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -/* -** list of valid conversion specifiers for the 'strftime' function -*/ -#if !defined(LUA_STRFTIMEOPTIONS) - -#if !defined(LUA_USE_POSIX) -#define LUA_STRFTIMEOPTIONS { "aAbBcdHIjmMpSUwWxXyYz%", "" } -#else -#define LUA_STRFTIMEOPTIONS \ - { "aAbBcCdDeFgGhHIjmMnprRStTuUVwWxXyYzZ%", "" \ - "", "E", "cCxXyY", \ - "O", "deHImMSuUVwWy" } -#endif - -#endif - - - -/* -** By default, Lua uses tmpnam except when POSIX is available, where it -** uses mkstemp. -*/ -#if defined(LUA_USE_MKSTEMP) -#include <unistd.h> -#define LUA_TMPNAMBUFSIZE 32 -#define lua_tmpnam(b,e) { \ - strcpy(b, "/tmp/lua_XXXXXX"); \ - e = mkstemp(b); \ - if (e != -1) close(e); \ - e = (e == -1); } - -#elif !defined(lua_tmpnam) - -#define LUA_TMPNAMBUFSIZE L_tmpnam -#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); } - -#endif - - -/* -** By default, Lua uses gmtime/localtime, except when POSIX is available, -** where it uses gmtime_r/localtime_r -*/ -#if defined(LUA_USE_GMTIME_R) - -#define l_gmtime(t,r) gmtime_r(t,r) -#define l_localtime(t,r) localtime_r(t,r) - -#elif !defined(l_gmtime) - -#define l_gmtime(t,r) ((void)r, gmtime(t)) -#define l_localtime(t,r) ((void)r, localtime(t)) - -#endif - - - -static int os_execute (lua_State *L) { - const char *cmd = luaL_optstring(L, 1, NULL); - int stat = system(cmd); - if (cmd != NULL) - return luaL_execresult(L, stat); - else { - lua_pushboolean(L, stat); /* true if there is a shell */ - return 1; - } -} - - -static int os_remove (lua_State *L) { - const char *filename = luaL_checkstring(L, 1); - return luaL_fileresult(L, remove(filename) == 0, filename); -} - - -static int os_rename (lua_State *L) { - const char *fromname = luaL_checkstring(L, 1); - const char *toname = luaL_checkstring(L, 2); - return luaL_fileresult(L, rename(fromname, toname) == 0, NULL); -} - - -static int os_tmpname (lua_State *L) { - char buff[LUA_TMPNAMBUFSIZE]; - int err; - lua_tmpnam(buff, err); - if (err) - return luaL_error(L, "unable to generate a unique filename"); - lua_pushstring(L, buff); - return 1; -} - - -static int os_getenv (lua_State *L) { - lua_pushstring(L, getenv(luaL_checkstring(L, 1))); /* if NULL push nil */ - return 1; -} - - -static int os_clock (lua_State *L) { - lua_pushnumber(L, ((lua_Number)clock())/(lua_Number)CLOCKS_PER_SEC); - return 1; -} - - -/* -** {====================================================== -** Time/Date operations -** { year=%Y, month=%m, day=%d, hour=%H, min=%M, sec=%S, -** wday=%w+1, yday=%j, isdst=? } -** ======================================================= -*/ - -static void setfield (lua_State *L, const char *key, int value) { - lua_pushinteger(L, value); - lua_setfield(L, -2, key); -} - -static void setboolfield (lua_State *L, const char *key, int value) { - if (value < 0) /* undefined? */ - return; /* does not set field */ - lua_pushboolean(L, value); - lua_setfield(L, -2, key); -} - -static int getboolfield (lua_State *L, const char *key) { - int res; - lua_getfield(L, -1, key); - res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1); - lua_pop(L, 1); - return res; -} - - -static int getfield (lua_State *L, const char *key, int d) { - int res, isnum; - lua_getfield(L, -1, key); - res = (int)lua_tointegerx(L, -1, &isnum); - if (!isnum) { - if (d < 0) - return luaL_error(L, "field " LUA_QS " missing in date table", key); - res = d; - } - lua_pop(L, 1); - return res; -} - - -static const char *checkoption (lua_State *L, const char *conv, char *buff) { - static const char *const options[] = LUA_STRFTIMEOPTIONS; - unsigned int i; - for (i = 0; i < sizeof(options)/sizeof(options[0]); i += 2) { - if (*conv != '\0' && strchr(options[i], *conv) != NULL) { - buff[1] = *conv; - if (*options[i + 1] == '\0') { /* one-char conversion specifier? */ - buff[2] = '\0'; /* end buffer */ - return conv + 1; - } - else if (*(conv + 1) != '\0' && - strchr(options[i + 1], *(conv + 1)) != NULL) { - buff[2] = *(conv + 1); /* valid two-char conversion specifier */ - buff[3] = '\0'; /* end buffer */ - return conv + 2; - } - } - } - luaL_argerror(L, 1, - lua_pushfstring(L, "invalid conversion specifier '%%%s'", conv)); - return conv; /* to avoid warnings */ -} - - -static int os_date (lua_State *L) { - const char *s = luaL_optstring(L, 1, "%c"); - time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL)); - struct tm tmr, *stm; - if (*s == '!') { /* UTC? */ - stm = l_gmtime(&t, &tmr); - s++; /* skip `!' */ - } - else - stm = l_localtime(&t, &tmr); - if (stm == NULL) /* invalid date? */ - lua_pushnil(L); - else if (strcmp(s, "*t") == 0) { - lua_createtable(L, 0, 9); /* 9 = number of fields */ - setfield(L, "sec", stm->tm_sec); - setfield(L, "min", stm->tm_min); - setfield(L, "hour", stm->tm_hour); - setfield(L, "day", stm->tm_mday); - setfield(L, "month", stm->tm_mon+1); - setfield(L, "year", stm->tm_year+1900); - setfield(L, "wday", stm->tm_wday+1); - setfield(L, "yday", stm->tm_yday+1); - setboolfield(L, "isdst", stm->tm_isdst); - } - else { - char cc[4]; - luaL_Buffer b; - cc[0] = '%'; - luaL_buffinit(L, &b); - while (*s) { - if (*s != '%') /* no conversion specifier? */ - luaL_addchar(&b, *s++); - else { - size_t reslen; - char buff[200]; /* should be big enough for any conversion result */ - s = checkoption(L, s + 1, cc); - reslen = strftime(buff, sizeof(buff), cc, stm); - luaL_addlstring(&b, buff, reslen); - } - } - luaL_pushresult(&b); - } - return 1; -} - - -static int os_time (lua_State *L) { - time_t t; - if (lua_isnoneornil(L, 1)) /* called without args? */ - t = time(NULL); /* get current time */ - else { - struct tm ts; - luaL_checktype(L, 1, LUA_TTABLE); - lua_settop(L, 1); /* make sure table is at the top */ - ts.tm_sec = getfield(L, "sec", 0); - ts.tm_min = getfield(L, "min", 0); - ts.tm_hour = getfield(L, "hour", 12); - ts.tm_mday = getfield(L, "day", -1); - ts.tm_mon = getfield(L, "month", -1) - 1; - ts.tm_year = getfield(L, "year", -1) - 1900; - ts.tm_isdst = getboolfield(L, "isdst"); - t = mktime(&ts); - } - if (t == (time_t)(-1)) - lua_pushnil(L); - else - lua_pushnumber(L, (lua_Number)t); - return 1; -} - - -static int os_difftime (lua_State *L) { - lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)), - (time_t)(luaL_optnumber(L, 2, 0)))); - return 1; -} - -/* }====================================================== */ - - -static int os_setlocale (lua_State *L) { - static const int cat[] = {LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, - LC_NUMERIC, LC_TIME}; - static const char *const catnames[] = {"all", "collate", "ctype", "monetary", - "numeric", "time", NULL}; - const char *l = luaL_optstring(L, 1, NULL); - int op = luaL_checkoption(L, 2, "all", catnames); - lua_pushstring(L, setlocale(cat[op], l)); - return 1; -} - - -static int os_exit (lua_State *L) { - int status; - if (lua_isboolean(L, 1)) - status = (lua_toboolean(L, 1) ? EXIT_SUCCESS : EXIT_FAILURE); - else - status = luaL_optint(L, 1, EXIT_SUCCESS); - if (lua_toboolean(L, 2)) - lua_close(L); - if (L) exit(status); /* 'if' to avoid warnings for unreachable 'return' */ - return 0; -} - - -static const luaL_Reg syslib[] = { - {"clock", os_clock}, - {"date", os_date}, - {"difftime", os_difftime}, - {"execute", os_execute}, - {"exit", os_exit}, - {"getenv", os_getenv}, - {"remove", os_remove}, - {"rename", os_rename}, - {"setlocale", os_setlocale}, - {"time", os_time}, - {"tmpname", os_tmpname}, - {NULL, NULL} -}; - -/* }====================================================== */ - - - -LUAMOD_API int luaopen_os (lua_State *L) { - luaL_newlib(L, syslib); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lparser.c b/Build/source/libs/lua52/lua52-src/src/lparser.c deleted file mode 100644 index 9e1a9ca2cfe..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lparser.c +++ /dev/null @@ -1,1638 +0,0 @@ -/* -** $Id: lparser.c,v 2.130.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua Parser -** See Copyright Notice in lua.h -*/ - - -#include <string.h> - -#define lparser_c -#define LUA_CORE - -#include "lua.h" - -#include "lcode.h" -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "llex.h" -#include "lmem.h" -#include "lobject.h" -#include "lopcodes.h" -#include "lparser.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" - - - -/* maximum number of local variables per function (must be smaller - than 250, due to the bytecode format) */ -#define MAXVARS 200 - - -#define hasmultret(k) ((k) == VCALL || (k) == VVARARG) - - - -/* -** nodes for block list (list of active blocks) -*/ -typedef struct BlockCnt { - struct BlockCnt *previous; /* chain */ - short firstlabel; /* index of first label in this block */ - short firstgoto; /* index of first pending goto in this block */ - lu_byte nactvar; /* # active locals outside the block */ - lu_byte upval; /* true if some variable in the block is an upvalue */ - lu_byte isloop; /* true if `block' is a loop */ -} BlockCnt; - - - -/* -** prototypes for recursive non-terminal functions -*/ -static void statement (LexState *ls); -static void expr (LexState *ls, expdesc *v); - - -static void anchor_token (LexState *ls) { - /* last token from outer function must be EOS */ - lua_assert(ls->fs != NULL || ls->t.token == TK_EOS); - if (ls->t.token == TK_NAME || ls->t.token == TK_STRING) { - TString *ts = ls->t.seminfo.ts; - luaX_newstring(ls, getstr(ts), ts->tsv.len); - } -} - - -/* semantic error */ -static l_noret semerror (LexState *ls, const char *msg) { - ls->t.token = 0; /* remove 'near to' from final message */ - luaX_syntaxerror(ls, msg); -} - - -static l_noret error_expected (LexState *ls, int token) { - luaX_syntaxerror(ls, - luaO_pushfstring(ls->L, "%s expected", luaX_token2str(ls, token))); -} - - -static l_noret errorlimit (FuncState *fs, int limit, const char *what) { - lua_State *L = fs->ls->L; - const char *msg; - int line = fs->f->linedefined; - const char *where = (line == 0) - ? "main function" - : luaO_pushfstring(L, "function at line %d", line); - msg = luaO_pushfstring(L, "too many %s (limit is %d) in %s", - what, limit, where); - luaX_syntaxerror(fs->ls, msg); -} - - -static void checklimit (FuncState *fs, int v, int l, const char *what) { - if (v > l) errorlimit(fs, l, what); -} - - -static int testnext (LexState *ls, int c) { - if (ls->t.token == c) { - luaX_next(ls); - return 1; - } - else return 0; -} - - -static void check (LexState *ls, int c) { - if (ls->t.token != c) - error_expected(ls, c); -} - - -static void checknext (LexState *ls, int c) { - check(ls, c); - luaX_next(ls); -} - - -#define check_condition(ls,c,msg) { if (!(c)) luaX_syntaxerror(ls, msg); } - - - -static void check_match (LexState *ls, int what, int who, int where) { - if (!testnext(ls, what)) { - if (where == ls->linenumber) - error_expected(ls, what); - else { - luaX_syntaxerror(ls, luaO_pushfstring(ls->L, - "%s expected (to close %s at line %d)", - luaX_token2str(ls, what), luaX_token2str(ls, who), where)); - } - } -} - - -static TString *str_checkname (LexState *ls) { - TString *ts; - check(ls, TK_NAME); - ts = ls->t.seminfo.ts; - luaX_next(ls); - return ts; -} - - -static void init_exp (expdesc *e, expkind k, int i) { - e->f = e->t = NO_JUMP; - e->k = k; - e->u.info = i; -} - - -static void codestring (LexState *ls, expdesc *e, TString *s) { - init_exp(e, VK, luaK_stringK(ls->fs, s)); -} - - -static void checkname (LexState *ls, expdesc *e) { - codestring(ls, e, str_checkname(ls)); -} - - -static int registerlocalvar (LexState *ls, TString *varname) { - FuncState *fs = ls->fs; - Proto *f = fs->f; - int oldsize = f->sizelocvars; - luaM_growvector(ls->L, f->locvars, fs->nlocvars, f->sizelocvars, - LocVar, SHRT_MAX, "local variables"); - while (oldsize < f->sizelocvars) f->locvars[oldsize++].varname = NULL; - f->locvars[fs->nlocvars].varname = varname; - luaC_objbarrier(ls->L, f, varname); - return fs->nlocvars++; -} - - -static void new_localvar (LexState *ls, TString *name) { - FuncState *fs = ls->fs; - Dyndata *dyd = ls->dyd; - int reg = registerlocalvar(ls, name); - checklimit(fs, dyd->actvar.n + 1 - fs->firstlocal, - MAXVARS, "local variables"); - luaM_growvector(ls->L, dyd->actvar.arr, dyd->actvar.n + 1, - dyd->actvar.size, Vardesc, MAX_INT, "local variables"); - dyd->actvar.arr[dyd->actvar.n++].idx = cast(short, reg); -} - - -static void new_localvarliteral_ (LexState *ls, const char *name, size_t sz) { - new_localvar(ls, luaX_newstring(ls, name, sz)); -} - -#define new_localvarliteral(ls,v) \ - new_localvarliteral_(ls, "" v, (sizeof(v)/sizeof(char))-1) - - -static LocVar *getlocvar (FuncState *fs, int i) { - int idx = fs->ls->dyd->actvar.arr[fs->firstlocal + i].idx; - lua_assert(idx < fs->nlocvars); - return &fs->f->locvars[idx]; -} - - -static void adjustlocalvars (LexState *ls, int nvars) { - FuncState *fs = ls->fs; - fs->nactvar = cast_byte(fs->nactvar + nvars); - for (; nvars; nvars--) { - getlocvar(fs, fs->nactvar - nvars)->startpc = fs->pc; - } -} - - -static void removevars (FuncState *fs, int tolevel) { - fs->ls->dyd->actvar.n -= (fs->nactvar - tolevel); - while (fs->nactvar > tolevel) - getlocvar(fs, --fs->nactvar)->endpc = fs->pc; -} - - -static int searchupvalue (FuncState *fs, TString *name) { - int i; - Upvaldesc *up = fs->f->upvalues; - for (i = 0; i < fs->nups; i++) { - if (luaS_eqstr(up[i].name, name)) return i; - } - return -1; /* not found */ -} - - -static int newupvalue (FuncState *fs, TString *name, expdesc *v) { - Proto *f = fs->f; - int oldsize = f->sizeupvalues; - checklimit(fs, fs->nups + 1, MAXUPVAL, "upvalues"); - luaM_growvector(fs->ls->L, f->upvalues, fs->nups, f->sizeupvalues, - Upvaldesc, MAXUPVAL, "upvalues"); - while (oldsize < f->sizeupvalues) f->upvalues[oldsize++].name = NULL; - f->upvalues[fs->nups].instack = (v->k == VLOCAL); - f->upvalues[fs->nups].idx = cast_byte(v->u.info); - f->upvalues[fs->nups].name = name; - luaC_objbarrier(fs->ls->L, f, name); - return fs->nups++; -} - - -static int searchvar (FuncState *fs, TString *n) { - int i; - for (i = cast_int(fs->nactvar) - 1; i >= 0; i--) { - if (luaS_eqstr(n, getlocvar(fs, i)->varname)) - return i; - } - return -1; /* not found */ -} - - -/* - Mark block where variable at given level was defined - (to emit close instructions later). -*/ -static void markupval (FuncState *fs, int level) { - BlockCnt *bl = fs->bl; - while (bl->nactvar > level) bl = bl->previous; - bl->upval = 1; -} - - -/* - Find variable with given name 'n'. If it is an upvalue, add this - upvalue into all intermediate functions. -*/ -static int singlevaraux (FuncState *fs, TString *n, expdesc *var, int base) { - if (fs == NULL) /* no more levels? */ - return VVOID; /* default is global */ - else { - int v = searchvar(fs, n); /* look up locals at current level */ - if (v >= 0) { /* found? */ - init_exp(var, VLOCAL, v); /* variable is local */ - if (!base) - markupval(fs, v); /* local will be used as an upval */ - return VLOCAL; - } - else { /* not found as local at current level; try upvalues */ - int idx = searchupvalue(fs, n); /* try existing upvalues */ - if (idx < 0) { /* not found? */ - if (singlevaraux(fs->prev, n, var, 0) == VVOID) /* try upper levels */ - return VVOID; /* not found; is a global */ - /* else was LOCAL or UPVAL */ - idx = newupvalue(fs, n, var); /* will be a new upvalue */ - } - init_exp(var, VUPVAL, idx); - return VUPVAL; - } - } -} - - -static void singlevar (LexState *ls, expdesc *var) { - TString *varname = str_checkname(ls); - FuncState *fs = ls->fs; - if (singlevaraux(fs, varname, var, 1) == VVOID) { /* global name? */ - expdesc key; - singlevaraux(fs, ls->envn, var, 1); /* get environment variable */ - lua_assert(var->k == VLOCAL || var->k == VUPVAL); - codestring(ls, &key, varname); /* key is variable name */ - luaK_indexed(fs, var, &key); /* env[varname] */ - } -} - - -static void adjust_assign (LexState *ls, int nvars, int nexps, expdesc *e) { - FuncState *fs = ls->fs; - int extra = nvars - nexps; - if (hasmultret(e->k)) { - extra++; /* includes call itself */ - if (extra < 0) extra = 0; - luaK_setreturns(fs, e, extra); /* last exp. provides the difference */ - if (extra > 1) luaK_reserveregs(fs, extra-1); - } - else { - if (e->k != VVOID) luaK_exp2nextreg(fs, e); /* close last expression */ - if (extra > 0) { - int reg = fs->freereg; - luaK_reserveregs(fs, extra); - luaK_nil(fs, reg, extra); - } - } -} - - -static void enterlevel (LexState *ls) { - lua_State *L = ls->L; - ++L->nCcalls; - checklimit(ls->fs, L->nCcalls, LUAI_MAXCCALLS, "C levels"); -} - - -#define leavelevel(ls) ((ls)->L->nCcalls--) - - -static void closegoto (LexState *ls, int g, Labeldesc *label) { - int i; - FuncState *fs = ls->fs; - Labellist *gl = &ls->dyd->gt; - Labeldesc *gt = &gl->arr[g]; - lua_assert(luaS_eqstr(gt->name, label->name)); - if (gt->nactvar < label->nactvar) { - TString *vname = getlocvar(fs, gt->nactvar)->varname; - const char *msg = luaO_pushfstring(ls->L, - "<goto %s> at line %d jumps into the scope of local " LUA_QS, - getstr(gt->name), gt->line, getstr(vname)); - semerror(ls, msg); - } - luaK_patchlist(fs, gt->pc, label->pc); - /* remove goto from pending list */ - for (i = g; i < gl->n - 1; i++) - gl->arr[i] = gl->arr[i + 1]; - gl->n--; -} - - -/* -** try to close a goto with existing labels; this solves backward jumps -*/ -static int findlabel (LexState *ls, int g) { - int i; - BlockCnt *bl = ls->fs->bl; - Dyndata *dyd = ls->dyd; - Labeldesc *gt = &dyd->gt.arr[g]; - /* check labels in current block for a match */ - for (i = bl->firstlabel; i < dyd->label.n; i++) { - Labeldesc *lb = &dyd->label.arr[i]; - if (luaS_eqstr(lb->name, gt->name)) { /* correct label? */ - if (gt->nactvar > lb->nactvar && - (bl->upval || dyd->label.n > bl->firstlabel)) - luaK_patchclose(ls->fs, gt->pc, lb->nactvar); - closegoto(ls, g, lb); /* close it */ - return 1; - } - } - return 0; /* label not found; cannot close goto */ -} - - -static int newlabelentry (LexState *ls, Labellist *l, TString *name, - int line, int pc) { - int n = l->n; - luaM_growvector(ls->L, l->arr, n, l->size, - Labeldesc, SHRT_MAX, "labels/gotos"); - l->arr[n].name = name; - l->arr[n].line = line; - l->arr[n].nactvar = ls->fs->nactvar; - l->arr[n].pc = pc; - l->n++; - return n; -} - - -/* -** check whether new label 'lb' matches any pending gotos in current -** block; solves forward jumps -*/ -static void findgotos (LexState *ls, Labeldesc *lb) { - Labellist *gl = &ls->dyd->gt; - int i = ls->fs->bl->firstgoto; - while (i < gl->n) { - if (luaS_eqstr(gl->arr[i].name, lb->name)) - closegoto(ls, i, lb); - else - i++; - } -} - - -/* -** "export" pending gotos to outer level, to check them against -** outer labels; if the block being exited has upvalues, and -** the goto exits the scope of any variable (which can be the -** upvalue), close those variables being exited. -*/ -static void movegotosout (FuncState *fs, BlockCnt *bl) { - int i = bl->firstgoto; - Labellist *gl = &fs->ls->dyd->gt; - /* correct pending gotos to current block and try to close it - with visible labels */ - while (i < gl->n) { - Labeldesc *gt = &gl->arr[i]; - if (gt->nactvar > bl->nactvar) { - if (bl->upval) - luaK_patchclose(fs, gt->pc, bl->nactvar); - gt->nactvar = bl->nactvar; - } - if (!findlabel(fs->ls, i)) - i++; /* move to next one */ - } -} - - -static void enterblock (FuncState *fs, BlockCnt *bl, lu_byte isloop) { - bl->isloop = isloop; - bl->nactvar = fs->nactvar; - bl->firstlabel = fs->ls->dyd->label.n; - bl->firstgoto = fs->ls->dyd->gt.n; - bl->upval = 0; - bl->previous = fs->bl; - fs->bl = bl; - lua_assert(fs->freereg == fs->nactvar); -} - - -/* -** create a label named "break" to resolve break statements -*/ -static void breaklabel (LexState *ls) { - TString *n = luaS_new(ls->L, "break"); - int l = newlabelentry(ls, &ls->dyd->label, n, 0, ls->fs->pc); - findgotos(ls, &ls->dyd->label.arr[l]); -} - -/* -** generates an error for an undefined 'goto'; choose appropriate -** message when label name is a reserved word (which can only be 'break') -*/ -static l_noret undefgoto (LexState *ls, Labeldesc *gt) { - const char *msg = isreserved(gt->name) - ? "<%s> at line %d not inside a loop" - : "no visible label " LUA_QS " for <goto> at line %d"; - msg = luaO_pushfstring(ls->L, msg, getstr(gt->name), gt->line); - semerror(ls, msg); -} - - -static void leaveblock (FuncState *fs) { - BlockCnt *bl = fs->bl; - LexState *ls = fs->ls; - if (bl->previous && bl->upval) { - /* create a 'jump to here' to close upvalues */ - int j = luaK_jump(fs); - luaK_patchclose(fs, j, bl->nactvar); - luaK_patchtohere(fs, j); - } - if (bl->isloop) - breaklabel(ls); /* close pending breaks */ - fs->bl = bl->previous; - removevars(fs, bl->nactvar); - lua_assert(bl->nactvar == fs->nactvar); - fs->freereg = fs->nactvar; /* free registers */ - ls->dyd->label.n = bl->firstlabel; /* remove local labels */ - if (bl->previous) /* inner block? */ - movegotosout(fs, bl); /* update pending gotos to outer block */ - else if (bl->firstgoto < ls->dyd->gt.n) /* pending gotos in outer block? */ - undefgoto(ls, &ls->dyd->gt.arr[bl->firstgoto]); /* error */ -} - - -/* -** adds a new prototype into list of prototypes -*/ -static Proto *addprototype (LexState *ls) { - Proto *clp; - lua_State *L = ls->L; - FuncState *fs = ls->fs; - Proto *f = fs->f; /* prototype of current function */ - if (fs->np >= f->sizep) { - int oldsize = f->sizep; - luaM_growvector(L, f->p, fs->np, f->sizep, Proto *, MAXARG_Bx, "functions"); - while (oldsize < f->sizep) f->p[oldsize++] = NULL; - } - f->p[fs->np++] = clp = luaF_newproto(L); - luaC_objbarrier(L, f, clp); - return clp; -} - - -/* -** codes instruction to create new closure in parent function. -** The OP_CLOSURE instruction must use the last available register, -** so that, if it invokes the GC, the GC knows which registers -** are in use at that time. -*/ -static void codeclosure (LexState *ls, expdesc *v) { - FuncState *fs = ls->fs->prev; - init_exp(v, VRELOCABLE, luaK_codeABx(fs, OP_CLOSURE, 0, fs->np - 1)); - luaK_exp2nextreg(fs, v); /* fix it at the last register */ -} - - -static void open_func (LexState *ls, FuncState *fs, BlockCnt *bl) { - lua_State *L = ls->L; - Proto *f; - fs->prev = ls->fs; /* linked list of funcstates */ - fs->ls = ls; - ls->fs = fs; - fs->pc = 0; - fs->lasttarget = 0; - fs->jpc = NO_JUMP; - fs->freereg = 0; - fs->nk = 0; - fs->np = 0; - fs->nups = 0; - fs->nlocvars = 0; - fs->nactvar = 0; - fs->firstlocal = ls->dyd->actvar.n; - fs->bl = NULL; - f = fs->f; - f->source = ls->source; - f->maxstacksize = 2; /* registers 0/1 are always valid */ - fs->h = luaH_new(L); - /* anchor table of constants (to avoid being collected) */ - sethvalue2s(L, L->top, fs->h); - incr_top(L); - enterblock(fs, bl, 0); -} - - -static void close_func (LexState *ls) { - lua_State *L = ls->L; - FuncState *fs = ls->fs; - Proto *f = fs->f; - luaK_ret(fs, 0, 0); /* final return */ - leaveblock(fs); - luaM_reallocvector(L, f->code, f->sizecode, fs->pc, Instruction); - f->sizecode = fs->pc; - luaM_reallocvector(L, f->lineinfo, f->sizelineinfo, fs->pc, int); - f->sizelineinfo = fs->pc; - luaM_reallocvector(L, f->k, f->sizek, fs->nk, TValue); - f->sizek = fs->nk; - luaM_reallocvector(L, f->p, f->sizep, fs->np, Proto *); - f->sizep = fs->np; - luaM_reallocvector(L, f->locvars, f->sizelocvars, fs->nlocvars, LocVar); - f->sizelocvars = fs->nlocvars; - luaM_reallocvector(L, f->upvalues, f->sizeupvalues, fs->nups, Upvaldesc); - f->sizeupvalues = fs->nups; - lua_assert(fs->bl == NULL); - ls->fs = fs->prev; - /* last token read was anchored in defunct function; must re-anchor it */ - anchor_token(ls); - L->top--; /* pop table of constants */ - luaC_checkGC(L); -} - - - -/*============================================================*/ -/* GRAMMAR RULES */ -/*============================================================*/ - - -/* -** check whether current token is in the follow set of a block. -** 'until' closes syntactical blocks, but do not close scope, -** so it handled in separate. -*/ -static int block_follow (LexState *ls, int withuntil) { - switch (ls->t.token) { - case TK_ELSE: case TK_ELSEIF: - case TK_END: case TK_EOS: - return 1; - case TK_UNTIL: return withuntil; - default: return 0; - } -} - - -static void statlist (LexState *ls) { - /* statlist -> { stat [`;'] } */ - while (!block_follow(ls, 1)) { - if (ls->t.token == TK_RETURN) { - statement(ls); - return; /* 'return' must be last statement */ - } - statement(ls); - } -} - - -static void fieldsel (LexState *ls, expdesc *v) { - /* fieldsel -> ['.' | ':'] NAME */ - FuncState *fs = ls->fs; - expdesc key; - luaK_exp2anyregup(fs, v); - luaX_next(ls); /* skip the dot or colon */ - checkname(ls, &key); - luaK_indexed(fs, v, &key); -} - - -static void yindex (LexState *ls, expdesc *v) { - /* index -> '[' expr ']' */ - luaX_next(ls); /* skip the '[' */ - expr(ls, v); - luaK_exp2val(ls->fs, v); - checknext(ls, ']'); -} - - -/* -** {====================================================================== -** Rules for Constructors -** ======================================================================= -*/ - - -struct ConsControl { - expdesc v; /* last list item read */ - expdesc *t; /* table descriptor */ - int nh; /* total number of `record' elements */ - int na; /* total number of array elements */ - int tostore; /* number of array elements pending to be stored */ -}; - - -static void recfield (LexState *ls, struct ConsControl *cc) { - /* recfield -> (NAME | `['exp1`]') = exp1 */ - FuncState *fs = ls->fs; - int reg = ls->fs->freereg; - expdesc key, val; - int rkkey; - if (ls->t.token == TK_NAME) { - checklimit(fs, cc->nh, MAX_INT, "items in a constructor"); - checkname(ls, &key); - } - else /* ls->t.token == '[' */ - yindex(ls, &key); - cc->nh++; - checknext(ls, '='); - rkkey = luaK_exp2RK(fs, &key); - expr(ls, &val); - luaK_codeABC(fs, OP_SETTABLE, cc->t->u.info, rkkey, luaK_exp2RK(fs, &val)); - fs->freereg = reg; /* free registers */ -} - - -static void closelistfield (FuncState *fs, struct ConsControl *cc) { - if (cc->v.k == VVOID) return; /* there is no list item */ - luaK_exp2nextreg(fs, &cc->v); - cc->v.k = VVOID; - if (cc->tostore == LFIELDS_PER_FLUSH) { - luaK_setlist(fs, cc->t->u.info, cc->na, cc->tostore); /* flush */ - cc->tostore = 0; /* no more items pending */ - } -} - - -static void lastlistfield (FuncState *fs, struct ConsControl *cc) { - if (cc->tostore == 0) return; - if (hasmultret(cc->v.k)) { - luaK_setmultret(fs, &cc->v); - luaK_setlist(fs, cc->t->u.info, cc->na, LUA_MULTRET); - cc->na--; /* do not count last expression (unknown number of elements) */ - } - else { - if (cc->v.k != VVOID) - luaK_exp2nextreg(fs, &cc->v); - luaK_setlist(fs, cc->t->u.info, cc->na, cc->tostore); - } -} - - -static void listfield (LexState *ls, struct ConsControl *cc) { - /* listfield -> exp */ - expr(ls, &cc->v); - checklimit(ls->fs, cc->na, MAX_INT, "items in a constructor"); - cc->na++; - cc->tostore++; -} - - -static void field (LexState *ls, struct ConsControl *cc) { - /* field -> listfield | recfield */ - switch(ls->t.token) { - case TK_NAME: { /* may be 'listfield' or 'recfield' */ - if (luaX_lookahead(ls) != '=') /* expression? */ - listfield(ls, cc); - else - recfield(ls, cc); - break; - } - case '[': { - recfield(ls, cc); - break; - } - default: { - listfield(ls, cc); - break; - } - } -} - - -static void constructor (LexState *ls, expdesc *t) { - /* constructor -> '{' [ field { sep field } [sep] ] '}' - sep -> ',' | ';' */ - FuncState *fs = ls->fs; - int line = ls->linenumber; - int pc = luaK_codeABC(fs, OP_NEWTABLE, 0, 0, 0); - struct ConsControl cc; - cc.na = cc.nh = cc.tostore = 0; - cc.t = t; - init_exp(t, VRELOCABLE, pc); - init_exp(&cc.v, VVOID, 0); /* no value (yet) */ - luaK_exp2nextreg(ls->fs, t); /* fix it at stack top */ - checknext(ls, '{'); - do { - lua_assert(cc.v.k == VVOID || cc.tostore > 0); - if (ls->t.token == '}') break; - closelistfield(fs, &cc); - field(ls, &cc); - } while (testnext(ls, ',') || testnext(ls, ';')); - check_match(ls, '}', '{', line); - lastlistfield(fs, &cc); - SETARG_B(fs->f->code[pc], luaO_int2fb(cc.na)); /* set initial array size */ - SETARG_C(fs->f->code[pc], luaO_int2fb(cc.nh)); /* set initial table size */ -} - -/* }====================================================================== */ - - - -static void parlist (LexState *ls) { - /* parlist -> [ param { `,' param } ] */ - FuncState *fs = ls->fs; - Proto *f = fs->f; - int nparams = 0; - f->is_vararg = 0; - if (ls->t.token != ')') { /* is `parlist' not empty? */ - do { - switch (ls->t.token) { - case TK_NAME: { /* param -> NAME */ - new_localvar(ls, str_checkname(ls)); - nparams++; - break; - } - case TK_DOTS: { /* param -> `...' */ - luaX_next(ls); - f->is_vararg = 1; - break; - } - default: luaX_syntaxerror(ls, "<name> or " LUA_QL("...") " expected"); - } - } while (!f->is_vararg && testnext(ls, ',')); - } - adjustlocalvars(ls, nparams); - f->numparams = cast_byte(fs->nactvar); - luaK_reserveregs(fs, fs->nactvar); /* reserve register for parameters */ -} - - -static void body (LexState *ls, expdesc *e, int ismethod, int line) { - /* body -> `(' parlist `)' block END */ - FuncState new_fs; - BlockCnt bl; - new_fs.f = addprototype(ls); - new_fs.f->linedefined = line; - open_func(ls, &new_fs, &bl); - checknext(ls, '('); - if (ismethod) { - new_localvarliteral(ls, "self"); /* create 'self' parameter */ - adjustlocalvars(ls, 1); - } - parlist(ls); - checknext(ls, ')'); - statlist(ls); - new_fs.f->lastlinedefined = ls->linenumber; - check_match(ls, TK_END, TK_FUNCTION, line); - codeclosure(ls, e); - close_func(ls); -} - - -static int explist (LexState *ls, expdesc *v) { - /* explist -> expr { `,' expr } */ - int n = 1; /* at least one expression */ - expr(ls, v); - while (testnext(ls, ',')) { - luaK_exp2nextreg(ls->fs, v); - expr(ls, v); - n++; - } - return n; -} - - -static void funcargs (LexState *ls, expdesc *f, int line) { - FuncState *fs = ls->fs; - expdesc args; - int base, nparams; - switch (ls->t.token) { - case '(': { /* funcargs -> `(' [ explist ] `)' */ - luaX_next(ls); - if (ls->t.token == ')') /* arg list is empty? */ - args.k = VVOID; - else { - explist(ls, &args); - luaK_setmultret(fs, &args); - } - check_match(ls, ')', '(', line); - break; - } - case '{': { /* funcargs -> constructor */ - constructor(ls, &args); - break; - } - case TK_STRING: { /* funcargs -> STRING */ - codestring(ls, &args, ls->t.seminfo.ts); - luaX_next(ls); /* must use `seminfo' before `next' */ - break; - } - default: { - luaX_syntaxerror(ls, "function arguments expected"); - } - } - lua_assert(f->k == VNONRELOC); - base = f->u.info; /* base register for call */ - if (hasmultret(args.k)) - nparams = LUA_MULTRET; /* open call */ - else { - if (args.k != VVOID) - luaK_exp2nextreg(fs, &args); /* close last argument */ - nparams = fs->freereg - (base+1); - } - init_exp(f, VCALL, luaK_codeABC(fs, OP_CALL, base, nparams+1, 2)); - luaK_fixline(fs, line); - fs->freereg = base+1; /* call remove function and arguments and leaves - (unless changed) one result */ -} - - - - -/* -** {====================================================================== -** Expression parsing -** ======================================================================= -*/ - - -static void primaryexp (LexState *ls, expdesc *v) { - /* primaryexp -> NAME | '(' expr ')' */ - switch (ls->t.token) { - case '(': { - int line = ls->linenumber; - luaX_next(ls); - expr(ls, v); - check_match(ls, ')', '(', line); - luaK_dischargevars(ls->fs, v); - return; - } - case TK_NAME: { - singlevar(ls, v); - return; - } - default: { - luaX_syntaxerror(ls, "unexpected symbol"); - } - } -} - - -static void suffixedexp (LexState *ls, expdesc *v) { - /* suffixedexp -> - primaryexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs } */ - FuncState *fs = ls->fs; - int line = ls->linenumber; - primaryexp(ls, v); - for (;;) { - switch (ls->t.token) { - case '.': { /* fieldsel */ - fieldsel(ls, v); - break; - } - case '[': { /* `[' exp1 `]' */ - expdesc key; - luaK_exp2anyregup(fs, v); - yindex(ls, &key); - luaK_indexed(fs, v, &key); - break; - } - case ':': { /* `:' NAME funcargs */ - expdesc key; - luaX_next(ls); - checkname(ls, &key); - luaK_self(fs, v, &key); - funcargs(ls, v, line); - break; - } - case '(': case TK_STRING: case '{': { /* funcargs */ - luaK_exp2nextreg(fs, v); - funcargs(ls, v, line); - break; - } - default: return; - } - } -} - - -static void simpleexp (LexState *ls, expdesc *v) { - /* simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ... | - constructor | FUNCTION body | suffixedexp */ - switch (ls->t.token) { - case TK_NUMBER: { - init_exp(v, VKNUM, 0); - v->u.nval = ls->t.seminfo.r; - break; - } - case TK_STRING: { - codestring(ls, v, ls->t.seminfo.ts); - break; - } - case TK_NIL: { - init_exp(v, VNIL, 0); - break; - } - case TK_TRUE: { - init_exp(v, VTRUE, 0); - break; - } - case TK_FALSE: { - init_exp(v, VFALSE, 0); - break; - } - case TK_DOTS: { /* vararg */ - FuncState *fs = ls->fs; - check_condition(ls, fs->f->is_vararg, - "cannot use " LUA_QL("...") " outside a vararg function"); - init_exp(v, VVARARG, luaK_codeABC(fs, OP_VARARG, 0, 1, 0)); - break; - } - case '{': { /* constructor */ - constructor(ls, v); - return; - } - case TK_FUNCTION: { - luaX_next(ls); - body(ls, v, 0, ls->linenumber); - return; - } - default: { - suffixedexp(ls, v); - return; - } - } - luaX_next(ls); -} - - -static UnOpr getunopr (int op) { - switch (op) { - case TK_NOT: return OPR_NOT; - case '-': return OPR_MINUS; - case '#': return OPR_LEN; - default: return OPR_NOUNOPR; - } -} - - -static BinOpr getbinopr (int op) { - switch (op) { - case '+': return OPR_ADD; - case '-': return OPR_SUB; - case '*': return OPR_MUL; - case '/': return OPR_DIV; - case '%': return OPR_MOD; - case '^': return OPR_POW; - case TK_CONCAT: return OPR_CONCAT; - case TK_NE: return OPR_NE; - case TK_EQ: return OPR_EQ; - case '<': return OPR_LT; - case TK_LE: return OPR_LE; - case '>': return OPR_GT; - case TK_GE: return OPR_GE; - case TK_AND: return OPR_AND; - case TK_OR: return OPR_OR; - default: return OPR_NOBINOPR; - } -} - - -static const struct { - lu_byte left; /* left priority for each binary operator */ - lu_byte right; /* right priority */ -} priority[] = { /* ORDER OPR */ - {6, 6}, {6, 6}, {7, 7}, {7, 7}, {7, 7}, /* `+' `-' `*' `/' `%' */ - {10, 9}, {5, 4}, /* ^, .. (right associative) */ - {3, 3}, {3, 3}, {3, 3}, /* ==, <, <= */ - {3, 3}, {3, 3}, {3, 3}, /* ~=, >, >= */ - {2, 2}, {1, 1} /* and, or */ -}; - -#define UNARY_PRIORITY 8 /* priority for unary operators */ - - -/* -** subexpr -> (simpleexp | unop subexpr) { binop subexpr } -** where `binop' is any binary operator with a priority higher than `limit' -*/ -static BinOpr subexpr (LexState *ls, expdesc *v, int limit) { - BinOpr op; - UnOpr uop; - enterlevel(ls); - uop = getunopr(ls->t.token); - if (uop != OPR_NOUNOPR) { - int line = ls->linenumber; - luaX_next(ls); - subexpr(ls, v, UNARY_PRIORITY); - luaK_prefix(ls->fs, uop, v, line); - } - else simpleexp(ls, v); - /* expand while operators have priorities higher than `limit' */ - op = getbinopr(ls->t.token); - while (op != OPR_NOBINOPR && priority[op].left > limit) { - expdesc v2; - BinOpr nextop; - int line = ls->linenumber; - luaX_next(ls); - luaK_infix(ls->fs, op, v); - /* read sub-expression with higher priority */ - nextop = subexpr(ls, &v2, priority[op].right); - luaK_posfix(ls->fs, op, v, &v2, line); - op = nextop; - } - leavelevel(ls); - return op; /* return first untreated operator */ -} - - -static void expr (LexState *ls, expdesc *v) { - subexpr(ls, v, 0); -} - -/* }==================================================================== */ - - - -/* -** {====================================================================== -** Rules for Statements -** ======================================================================= -*/ - - -static void block (LexState *ls) { - /* block -> statlist */ - FuncState *fs = ls->fs; - BlockCnt bl; - enterblock(fs, &bl, 0); - statlist(ls); - leaveblock(fs); -} - - -/* -** structure to chain all variables in the left-hand side of an -** assignment -*/ -struct LHS_assign { - struct LHS_assign *prev; - expdesc v; /* variable (global, local, upvalue, or indexed) */ -}; - - -/* -** check whether, in an assignment to an upvalue/local variable, the -** upvalue/local variable is begin used in a previous assignment to a -** table. If so, save original upvalue/local value in a safe place and -** use this safe copy in the previous assignment. -*/ -static void check_conflict (LexState *ls, struct LHS_assign *lh, expdesc *v) { - FuncState *fs = ls->fs; - int extra = fs->freereg; /* eventual position to save local variable */ - int conflict = 0; - for (; lh; lh = lh->prev) { /* check all previous assignments */ - if (lh->v.k == VINDEXED) { /* assigning to a table? */ - /* table is the upvalue/local being assigned now? */ - if (lh->v.u.ind.vt == v->k && lh->v.u.ind.t == v->u.info) { - conflict = 1; - lh->v.u.ind.vt = VLOCAL; - lh->v.u.ind.t = extra; /* previous assignment will use safe copy */ - } - /* index is the local being assigned? (index cannot be upvalue) */ - if (v->k == VLOCAL && lh->v.u.ind.idx == v->u.info) { - conflict = 1; - lh->v.u.ind.idx = extra; /* previous assignment will use safe copy */ - } - } - } - if (conflict) { - /* copy upvalue/local value to a temporary (in position 'extra') */ - OpCode op = (v->k == VLOCAL) ? OP_MOVE : OP_GETUPVAL; - luaK_codeABC(fs, op, extra, v->u.info, 0); - luaK_reserveregs(fs, 1); - } -} - - -static void assignment (LexState *ls, struct LHS_assign *lh, int nvars) { - expdesc e; - check_condition(ls, vkisvar(lh->v.k), "syntax error"); - if (testnext(ls, ',')) { /* assignment -> ',' suffixedexp assignment */ - struct LHS_assign nv; - nv.prev = lh; - suffixedexp(ls, &nv.v); - if (nv.v.k != VINDEXED) - check_conflict(ls, lh, &nv.v); - checklimit(ls->fs, nvars + ls->L->nCcalls, LUAI_MAXCCALLS, - "C levels"); - assignment(ls, &nv, nvars+1); - } - else { /* assignment -> `=' explist */ - int nexps; - checknext(ls, '='); - nexps = explist(ls, &e); - if (nexps != nvars) { - adjust_assign(ls, nvars, nexps, &e); - if (nexps > nvars) - ls->fs->freereg -= nexps - nvars; /* remove extra values */ - } - else { - luaK_setoneret(ls->fs, &e); /* close last expression */ - luaK_storevar(ls->fs, &lh->v, &e); - return; /* avoid default */ - } - } - init_exp(&e, VNONRELOC, ls->fs->freereg-1); /* default assignment */ - luaK_storevar(ls->fs, &lh->v, &e); -} - - -static int cond (LexState *ls) { - /* cond -> exp */ - expdesc v; - expr(ls, &v); /* read condition */ - if (v.k == VNIL) v.k = VFALSE; /* `falses' are all equal here */ - luaK_goiftrue(ls->fs, &v); - return v.f; -} - - -static void gotostat (LexState *ls, int pc) { - int line = ls->linenumber; - TString *label; - int g; - if (testnext(ls, TK_GOTO)) - label = str_checkname(ls); - else { - luaX_next(ls); /* skip break */ - label = luaS_new(ls->L, "break"); - } - g = newlabelentry(ls, &ls->dyd->gt, label, line, pc); - findlabel(ls, g); /* close it if label already defined */ -} - - -/* check for repeated labels on the same block */ -static void checkrepeated (FuncState *fs, Labellist *ll, TString *label) { - int i; - for (i = fs->bl->firstlabel; i < ll->n; i++) { - if (luaS_eqstr(label, ll->arr[i].name)) { - const char *msg = luaO_pushfstring(fs->ls->L, - "label " LUA_QS " already defined on line %d", - getstr(label), ll->arr[i].line); - semerror(fs->ls, msg); - } - } -} - - -/* skip no-op statements */ -static void skipnoopstat (LexState *ls) { - while (ls->t.token == ';' || ls->t.token == TK_DBCOLON) - statement(ls); -} - - -static void labelstat (LexState *ls, TString *label, int line) { - /* label -> '::' NAME '::' */ - FuncState *fs = ls->fs; - Labellist *ll = &ls->dyd->label; - int l; /* index of new label being created */ - checkrepeated(fs, ll, label); /* check for repeated labels */ - checknext(ls, TK_DBCOLON); /* skip double colon */ - /* create new entry for this label */ - l = newlabelentry(ls, ll, label, line, fs->pc); - skipnoopstat(ls); /* skip other no-op statements */ - if (block_follow(ls, 0)) { /* label is last no-op statement in the block? */ - /* assume that locals are already out of scope */ - ll->arr[l].nactvar = fs->bl->nactvar; - } - findgotos(ls, &ll->arr[l]); -} - - -static void whilestat (LexState *ls, int line) { - /* whilestat -> WHILE cond DO block END */ - FuncState *fs = ls->fs; - int whileinit; - int condexit; - BlockCnt bl; - luaX_next(ls); /* skip WHILE */ - whileinit = luaK_getlabel(fs); - condexit = cond(ls); - enterblock(fs, &bl, 1); - checknext(ls, TK_DO); - block(ls); - luaK_jumpto(fs, whileinit); - check_match(ls, TK_END, TK_WHILE, line); - leaveblock(fs); - luaK_patchtohere(fs, condexit); /* false conditions finish the loop */ -} - - -static void repeatstat (LexState *ls, int line) { - /* repeatstat -> REPEAT block UNTIL cond */ - int condexit; - FuncState *fs = ls->fs; - int repeat_init = luaK_getlabel(fs); - BlockCnt bl1, bl2; - enterblock(fs, &bl1, 1); /* loop block */ - enterblock(fs, &bl2, 0); /* scope block */ - luaX_next(ls); /* skip REPEAT */ - statlist(ls); - check_match(ls, TK_UNTIL, TK_REPEAT, line); - condexit = cond(ls); /* read condition (inside scope block) */ - if (bl2.upval) /* upvalues? */ - luaK_patchclose(fs, condexit, bl2.nactvar); - leaveblock(fs); /* finish scope */ - luaK_patchlist(fs, condexit, repeat_init); /* close the loop */ - leaveblock(fs); /* finish loop */ -} - - -static int exp1 (LexState *ls) { - expdesc e; - int reg; - expr(ls, &e); - luaK_exp2nextreg(ls->fs, &e); - lua_assert(e.k == VNONRELOC); - reg = e.u.info; - return reg; -} - - -static void forbody (LexState *ls, int base, int line, int nvars, int isnum) { - /* forbody -> DO block */ - BlockCnt bl; - FuncState *fs = ls->fs; - int prep, endfor; - adjustlocalvars(ls, 3); /* control variables */ - checknext(ls, TK_DO); - prep = isnum ? luaK_codeAsBx(fs, OP_FORPREP, base, NO_JUMP) : luaK_jump(fs); - enterblock(fs, &bl, 0); /* scope for declared variables */ - adjustlocalvars(ls, nvars); - luaK_reserveregs(fs, nvars); - block(ls); - leaveblock(fs); /* end of scope for declared variables */ - luaK_patchtohere(fs, prep); - if (isnum) /* numeric for? */ - endfor = luaK_codeAsBx(fs, OP_FORLOOP, base, NO_JUMP); - else { /* generic for */ - luaK_codeABC(fs, OP_TFORCALL, base, 0, nvars); - luaK_fixline(fs, line); - endfor = luaK_codeAsBx(fs, OP_TFORLOOP, base + 2, NO_JUMP); - } - luaK_patchlist(fs, endfor, prep + 1); - luaK_fixline(fs, line); -} - - -static void fornum (LexState *ls, TString *varname, int line) { - /* fornum -> NAME = exp1,exp1[,exp1] forbody */ - FuncState *fs = ls->fs; - int base = fs->freereg; - new_localvarliteral(ls, "(for index)"); - new_localvarliteral(ls, "(for limit)"); - new_localvarliteral(ls, "(for step)"); - new_localvar(ls, varname); - checknext(ls, '='); - exp1(ls); /* initial value */ - checknext(ls, ','); - exp1(ls); /* limit */ - if (testnext(ls, ',')) - exp1(ls); /* optional step */ - else { /* default step = 1 */ - luaK_codek(fs, fs->freereg, luaK_numberK(fs, 1)); - luaK_reserveregs(fs, 1); - } - forbody(ls, base, line, 1, 1); -} - - -static void forlist (LexState *ls, TString *indexname) { - /* forlist -> NAME {,NAME} IN explist forbody */ - FuncState *fs = ls->fs; - expdesc e; - int nvars = 4; /* gen, state, control, plus at least one declared var */ - int line; - int base = fs->freereg; - /* create control variables */ - new_localvarliteral(ls, "(for generator)"); - new_localvarliteral(ls, "(for state)"); - new_localvarliteral(ls, "(for control)"); - /* create declared variables */ - new_localvar(ls, indexname); - while (testnext(ls, ',')) { - new_localvar(ls, str_checkname(ls)); - nvars++; - } - checknext(ls, TK_IN); - line = ls->linenumber; - adjust_assign(ls, 3, explist(ls, &e), &e); - luaK_checkstack(fs, 3); /* extra space to call generator */ - forbody(ls, base, line, nvars - 3, 0); -} - - -static void forstat (LexState *ls, int line) { - /* forstat -> FOR (fornum | forlist) END */ - FuncState *fs = ls->fs; - TString *varname; - BlockCnt bl; - enterblock(fs, &bl, 1); /* scope for loop and control variables */ - luaX_next(ls); /* skip `for' */ - varname = str_checkname(ls); /* first variable name */ - switch (ls->t.token) { - case '=': fornum(ls, varname, line); break; - case ',': case TK_IN: forlist(ls, varname); break; - default: luaX_syntaxerror(ls, LUA_QL("=") " or " LUA_QL("in") " expected"); - } - check_match(ls, TK_END, TK_FOR, line); - leaveblock(fs); /* loop scope (`break' jumps to this point) */ -} - - -static void test_then_block (LexState *ls, int *escapelist) { - /* test_then_block -> [IF | ELSEIF] cond THEN block */ - BlockCnt bl; - FuncState *fs = ls->fs; - expdesc v; - int jf; /* instruction to skip 'then' code (if condition is false) */ - luaX_next(ls); /* skip IF or ELSEIF */ - expr(ls, &v); /* read condition */ - checknext(ls, TK_THEN); - if (ls->t.token == TK_GOTO || ls->t.token == TK_BREAK) { - luaK_goiffalse(ls->fs, &v); /* will jump to label if condition is true */ - enterblock(fs, &bl, 0); /* must enter block before 'goto' */ - gotostat(ls, v.t); /* handle goto/break */ - skipnoopstat(ls); /* skip other no-op statements */ - if (block_follow(ls, 0)) { /* 'goto' is the entire block? */ - leaveblock(fs); - return; /* and that is it */ - } - else /* must skip over 'then' part if condition is false */ - jf = luaK_jump(fs); - } - else { /* regular case (not goto/break) */ - luaK_goiftrue(ls->fs, &v); /* skip over block if condition is false */ - enterblock(fs, &bl, 0); - jf = v.f; - } - statlist(ls); /* `then' part */ - leaveblock(fs); - if (ls->t.token == TK_ELSE || - ls->t.token == TK_ELSEIF) /* followed by 'else'/'elseif'? */ - luaK_concat(fs, escapelist, luaK_jump(fs)); /* must jump over it */ - luaK_patchtohere(fs, jf); -} - - -static void ifstat (LexState *ls, int line) { - /* ifstat -> IF cond THEN block {ELSEIF cond THEN block} [ELSE block] END */ - FuncState *fs = ls->fs; - int escapelist = NO_JUMP; /* exit list for finished parts */ - test_then_block(ls, &escapelist); /* IF cond THEN block */ - while (ls->t.token == TK_ELSEIF) - test_then_block(ls, &escapelist); /* ELSEIF cond THEN block */ - if (testnext(ls, TK_ELSE)) - block(ls); /* `else' part */ - check_match(ls, TK_END, TK_IF, line); - luaK_patchtohere(fs, escapelist); /* patch escape list to 'if' end */ -} - - -static void localfunc (LexState *ls) { - expdesc b; - FuncState *fs = ls->fs; - new_localvar(ls, str_checkname(ls)); /* new local variable */ - adjustlocalvars(ls, 1); /* enter its scope */ - body(ls, &b, 0, ls->linenumber); /* function created in next register */ - /* debug information will only see the variable after this point! */ - getlocvar(fs, b.u.info)->startpc = fs->pc; -} - - -static void localstat (LexState *ls) { - /* stat -> LOCAL NAME {`,' NAME} [`=' explist] */ - int nvars = 0; - int nexps; - expdesc e; - do { - new_localvar(ls, str_checkname(ls)); - nvars++; - } while (testnext(ls, ',')); - if (testnext(ls, '=')) - nexps = explist(ls, &e); - else { - e.k = VVOID; - nexps = 0; - } - adjust_assign(ls, nvars, nexps, &e); - adjustlocalvars(ls, nvars); -} - - -static int funcname (LexState *ls, expdesc *v) { - /* funcname -> NAME {fieldsel} [`:' NAME] */ - int ismethod = 0; - singlevar(ls, v); - while (ls->t.token == '.') - fieldsel(ls, v); - if (ls->t.token == ':') { - ismethod = 1; - fieldsel(ls, v); - } - return ismethod; -} - - -static void funcstat (LexState *ls, int line) { - /* funcstat -> FUNCTION funcname body */ - int ismethod; - expdesc v, b; - luaX_next(ls); /* skip FUNCTION */ - ismethod = funcname(ls, &v); - body(ls, &b, ismethod, line); - luaK_storevar(ls->fs, &v, &b); - luaK_fixline(ls->fs, line); /* definition `happens' in the first line */ -} - - -static void exprstat (LexState *ls) { - /* stat -> func | assignment */ - FuncState *fs = ls->fs; - struct LHS_assign v; - suffixedexp(ls, &v.v); - if (ls->t.token == '=' || ls->t.token == ',') { /* stat -> assignment ? */ - v.prev = NULL; - assignment(ls, &v, 1); - } - else { /* stat -> func */ - check_condition(ls, v.v.k == VCALL, "syntax error"); - SETARG_C(getcode(fs, &v.v), 1); /* call statement uses no results */ - } -} - - -static void retstat (LexState *ls) { - /* stat -> RETURN [explist] [';'] */ - FuncState *fs = ls->fs; - expdesc e; - int first, nret; /* registers with returned values */ - if (block_follow(ls, 1) || ls->t.token == ';') - first = nret = 0; /* return no values */ - else { - nret = explist(ls, &e); /* optional return values */ - if (hasmultret(e.k)) { - luaK_setmultret(fs, &e); - if (e.k == VCALL && nret == 1) { /* tail call? */ - SET_OPCODE(getcode(fs,&e), OP_TAILCALL); - lua_assert(GETARG_A(getcode(fs,&e)) == fs->nactvar); - } - first = fs->nactvar; - nret = LUA_MULTRET; /* return all values */ - } - else { - if (nret == 1) /* only one single value? */ - first = luaK_exp2anyreg(fs, &e); - else { - luaK_exp2nextreg(fs, &e); /* values must go to the `stack' */ - first = fs->nactvar; /* return all `active' values */ - lua_assert(nret == fs->freereg - first); - } - } - } - luaK_ret(fs, first, nret); - testnext(ls, ';'); /* skip optional semicolon */ -} - - -static void statement (LexState *ls) { - int line = ls->linenumber; /* may be needed for error messages */ - enterlevel(ls); - switch (ls->t.token) { - case ';': { /* stat -> ';' (empty statement) */ - luaX_next(ls); /* skip ';' */ - break; - } - case TK_IF: { /* stat -> ifstat */ - ifstat(ls, line); - break; - } - case TK_WHILE: { /* stat -> whilestat */ - whilestat(ls, line); - break; - } - case TK_DO: { /* stat -> DO block END */ - luaX_next(ls); /* skip DO */ - block(ls); - check_match(ls, TK_END, TK_DO, line); - break; - } - case TK_FOR: { /* stat -> forstat */ - forstat(ls, line); - break; - } - case TK_REPEAT: { /* stat -> repeatstat */ - repeatstat(ls, line); - break; - } - case TK_FUNCTION: { /* stat -> funcstat */ - funcstat(ls, line); - break; - } - case TK_LOCAL: { /* stat -> localstat */ - luaX_next(ls); /* skip LOCAL */ - if (testnext(ls, TK_FUNCTION)) /* local function? */ - localfunc(ls); - else - localstat(ls); - break; - } - case TK_DBCOLON: { /* stat -> label */ - luaX_next(ls); /* skip double colon */ - labelstat(ls, str_checkname(ls), line); - break; - } - case TK_RETURN: { /* stat -> retstat */ - luaX_next(ls); /* skip RETURN */ - retstat(ls); - break; - } - case TK_BREAK: /* stat -> breakstat */ - case TK_GOTO: { /* stat -> 'goto' NAME */ - gotostat(ls, luaK_jump(ls->fs)); - break; - } - default: { /* stat -> func | assignment */ - exprstat(ls); - break; - } - } - lua_assert(ls->fs->f->maxstacksize >= ls->fs->freereg && - ls->fs->freereg >= ls->fs->nactvar); - ls->fs->freereg = ls->fs->nactvar; /* free registers */ - leavelevel(ls); -} - -/* }====================================================================== */ - - -/* -** compiles the main function, which is a regular vararg function with an -** upvalue named LUA_ENV -*/ -static void mainfunc (LexState *ls, FuncState *fs) { - BlockCnt bl; - expdesc v; - open_func(ls, fs, &bl); - fs->f->is_vararg = 1; /* main function is always vararg */ - init_exp(&v, VLOCAL, 0); /* create and... */ - newupvalue(fs, ls->envn, &v); /* ...set environment upvalue */ - luaX_next(ls); /* read first token */ - statlist(ls); /* parse main body */ - check(ls, TK_EOS); - close_func(ls); -} - - -Closure *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, - Dyndata *dyd, const char *name, int firstchar) { - LexState lexstate; - FuncState funcstate; - Closure *cl = luaF_newLclosure(L, 1); /* create main closure */ - /* anchor closure (to avoid being collected) */ - setclLvalue(L, L->top, cl); - incr_top(L); - funcstate.f = cl->l.p = luaF_newproto(L); - funcstate.f->source = luaS_new(L, name); /* create and anchor TString */ - lexstate.buff = buff; - lexstate.dyd = dyd; - dyd->actvar.n = dyd->gt.n = dyd->label.n = 0; - luaX_setinput(L, &lexstate, z, funcstate.f->source, firstchar); - mainfunc(&lexstate, &funcstate); - lua_assert(!funcstate.prev && funcstate.nups == 1 && !lexstate.fs); - /* all scopes should be correctly finished */ - lua_assert(dyd->actvar.n == 0 && dyd->gt.n == 0 && dyd->label.n == 0); - return cl; /* it's on the stack too */ -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lparser.h b/Build/source/libs/lua52/lua52-src/src/lparser.h deleted file mode 100644 index 0346e3c41a8..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lparser.h +++ /dev/null @@ -1,119 +0,0 @@ -/* -** $Id: lparser.h,v 1.70.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua Parser -** See Copyright Notice in lua.h -*/ - -#ifndef lparser_h -#define lparser_h - -#include "llimits.h" -#include "lobject.h" -#include "lzio.h" - - -/* -** Expression descriptor -*/ - -typedef enum { - VVOID, /* no value */ - VNIL, - VTRUE, - VFALSE, - VK, /* info = index of constant in `k' */ - VKNUM, /* nval = numerical value */ - VNONRELOC, /* info = result register */ - VLOCAL, /* info = local register */ - VUPVAL, /* info = index of upvalue in 'upvalues' */ - VINDEXED, /* t = table register/upvalue; idx = index R/K */ - VJMP, /* info = instruction pc */ - VRELOCABLE, /* info = instruction pc */ - VCALL, /* info = instruction pc */ - VVARARG /* info = instruction pc */ -} expkind; - - -#define vkisvar(k) (VLOCAL <= (k) && (k) <= VINDEXED) -#define vkisinreg(k) ((k) == VNONRELOC || (k) == VLOCAL) - -typedef struct expdesc { - expkind k; - union { - struct { /* for indexed variables (VINDEXED) */ - short idx; /* index (R/K) */ - lu_byte t; /* table (register or upvalue) */ - lu_byte vt; /* whether 't' is register (VLOCAL) or upvalue (VUPVAL) */ - } ind; - int info; /* for generic use */ - lua_Number nval; /* for VKNUM */ - } u; - int t; /* patch list of `exit when true' */ - int f; /* patch list of `exit when false' */ -} expdesc; - - -/* description of active local variable */ -typedef struct Vardesc { - short idx; /* variable index in stack */ -} Vardesc; - - -/* description of pending goto statements and label statements */ -typedef struct Labeldesc { - TString *name; /* label identifier */ - int pc; /* position in code */ - int line; /* line where it appeared */ - lu_byte nactvar; /* local level where it appears in current block */ -} Labeldesc; - - -/* list of labels or gotos */ -typedef struct Labellist { - Labeldesc *arr; /* array */ - int n; /* number of entries in use */ - int size; /* array size */ -} Labellist; - - -/* dynamic structures used by the parser */ -typedef struct Dyndata { - struct { /* list of active local variables */ - Vardesc *arr; - int n; - int size; - } actvar; - Labellist gt; /* list of pending gotos */ - Labellist label; /* list of active labels */ -} Dyndata; - - -/* control of blocks */ -struct BlockCnt; /* defined in lparser.c */ - - -/* state needed to generate code for a given function */ -typedef struct FuncState { - Proto *f; /* current function header */ - Table *h; /* table to find (and reuse) elements in `k' */ - struct FuncState *prev; /* enclosing function */ - struct LexState *ls; /* lexical state */ - struct BlockCnt *bl; /* chain of current blocks */ - int pc; /* next position to code (equivalent to `ncode') */ - int lasttarget; /* 'label' of last 'jump label' */ - int jpc; /* list of pending jumps to `pc' */ - int nk; /* number of elements in `k' */ - int np; /* number of elements in `p' */ - int firstlocal; /* index of first local var (in Dyndata array) */ - short nlocvars; /* number of elements in 'f->locvars' */ - lu_byte nactvar; /* number of active local variables */ - lu_byte nups; /* number of upvalues */ - lu_byte freereg; /* first free register */ -} FuncState; - - -LUAI_FUNC Closure *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, - Dyndata *dyd, const char *name, int firstchar); - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lstate.c b/Build/source/libs/lua52/lua52-src/src/lstate.c deleted file mode 100644 index c7f2672be7b..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lstate.c +++ /dev/null @@ -1,323 +0,0 @@ -/* -** $Id: lstate.c,v 2.99.1.2 2013/11/08 17:45:31 roberto Exp $ -** Global State -** See Copyright Notice in lua.h -*/ - - -#include <stddef.h> -#include <string.h> - -#define lstate_c -#define LUA_CORE - -#include "lua.h" - -#include "lapi.h" -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lgc.h" -#include "llex.h" -#include "lmem.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" - - -#if !defined(LUAI_GCPAUSE) -#define LUAI_GCPAUSE 200 /* 200% */ -#endif - -#if !defined(LUAI_GCMAJOR) -#define LUAI_GCMAJOR 200 /* 200% */ -#endif - -#if !defined(LUAI_GCMUL) -#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */ -#endif - - -#define MEMERRMSG "not enough memory" - - -/* -** a macro to help the creation of a unique random seed when a state is -** created; the seed is used to randomize hashes. -*/ -#if !defined(luai_makeseed) -#include <time.h> -#define luai_makeseed() cast(unsigned int, time(NULL)) -#endif - - - -/* -** thread state + extra space -*/ -typedef struct LX { -#if defined(LUAI_EXTRASPACE) - char buff[LUAI_EXTRASPACE]; -#endif - lua_State l; -} LX; - - -/* -** Main thread combines a thread state and the global state -*/ -typedef struct LG { - LX l; - global_State g; -} LG; - - - -#define fromstate(L) (cast(LX *, cast(lu_byte *, (L)) - offsetof(LX, l))) - - -/* -** Compute an initial seed as random as possible. In ANSI, rely on -** Address Space Layout Randomization (if present) to increase -** randomness.. -*/ -#define addbuff(b,p,e) \ - { size_t t = cast(size_t, e); \ - memcpy(buff + p, &t, sizeof(t)); p += sizeof(t); } - -static unsigned int makeseed (lua_State *L) { - char buff[4 * sizeof(size_t)]; - unsigned int h = luai_makeseed(); - int p = 0; - addbuff(buff, p, L); /* heap variable */ - addbuff(buff, p, &h); /* local variable */ - addbuff(buff, p, luaO_nilobject); /* global variable */ - addbuff(buff, p, &lua_newstate); /* public function */ - lua_assert(p == sizeof(buff)); - return luaS_hash(buff, p, h); -} - - -/* -** set GCdebt to a new value keeping the value (totalbytes + GCdebt) -** invariant -*/ -void luaE_setdebt (global_State *g, l_mem debt) { - g->totalbytes -= (debt - g->GCdebt); - g->GCdebt = debt; -} - - -CallInfo *luaE_extendCI (lua_State *L) { - CallInfo *ci = luaM_new(L, CallInfo); - lua_assert(L->ci->next == NULL); - L->ci->next = ci; - ci->previous = L->ci; - ci->next = NULL; - return ci; -} - - -void luaE_freeCI (lua_State *L) { - CallInfo *ci = L->ci; - CallInfo *next = ci->next; - ci->next = NULL; - while ((ci = next) != NULL) { - next = ci->next; - luaM_free(L, ci); - } -} - - -static void stack_init (lua_State *L1, lua_State *L) { - int i; CallInfo *ci; - /* initialize stack array */ - L1->stack = luaM_newvector(L, BASIC_STACK_SIZE, TValue); - L1->stacksize = BASIC_STACK_SIZE; - for (i = 0; i < BASIC_STACK_SIZE; i++) - setnilvalue(L1->stack + i); /* erase new stack */ - L1->top = L1->stack; - L1->stack_last = L1->stack + L1->stacksize - EXTRA_STACK; - /* initialize first ci */ - ci = &L1->base_ci; - ci->next = ci->previous = NULL; - ci->callstatus = 0; - ci->func = L1->top; - setnilvalue(L1->top++); /* 'function' entry for this 'ci' */ - ci->top = L1->top + LUA_MINSTACK; - L1->ci = ci; -} - - -static void freestack (lua_State *L) { - if (L->stack == NULL) - return; /* stack not completely built yet */ - L->ci = &L->base_ci; /* free the entire 'ci' list */ - luaE_freeCI(L); - luaM_freearray(L, L->stack, L->stacksize); /* free stack array */ -} - - -/* -** Create registry table and its predefined values -*/ -static void init_registry (lua_State *L, global_State *g) { - TValue mt; - /* create registry */ - Table *registry = luaH_new(L); - sethvalue(L, &g->l_registry, registry); - luaH_resize(L, registry, LUA_RIDX_LAST, 0); - /* registry[LUA_RIDX_MAINTHREAD] = L */ - setthvalue(L, &mt, L); - luaH_setint(L, registry, LUA_RIDX_MAINTHREAD, &mt); - /* registry[LUA_RIDX_GLOBALS] = table of globals */ - sethvalue(L, &mt, luaH_new(L)); - luaH_setint(L, registry, LUA_RIDX_GLOBALS, &mt); -} - - -/* -** open parts of the state that may cause memory-allocation errors -*/ -static void f_luaopen (lua_State *L, void *ud) { - global_State *g = G(L); - UNUSED(ud); - stack_init(L, L); /* init stack */ - init_registry(L, g); - luaS_resize(L, MINSTRTABSIZE); /* initial size of string table */ - luaT_init(L); - luaX_init(L); - /* pre-create memory-error message */ - g->memerrmsg = luaS_newliteral(L, MEMERRMSG); - luaS_fix(g->memerrmsg); /* it should never be collected */ - g->gcrunning = 1; /* allow gc */ - g->version = lua_version(NULL); - luai_userstateopen(L); -} - - -/* -** preinitialize a state with consistent values without allocating -** any memory (to avoid errors) -*/ -static void preinit_state (lua_State *L, global_State *g) { - G(L) = g; - L->stack = NULL; - L->ci = NULL; - L->stacksize = 0; - L->errorJmp = NULL; - L->nCcalls = 0; - L->hook = NULL; - L->hookmask = 0; - L->basehookcount = 0; - L->allowhook = 1; - resethookcount(L); - L->openupval = NULL; - L->nny = 1; - L->status = LUA_OK; - L->errfunc = 0; -} - - -static void close_state (lua_State *L) { - global_State *g = G(L); - luaF_close(L, L->stack); /* close all upvalues for this thread */ - luaC_freeallobjects(L); /* collect all objects */ - if (g->version) /* closing a fully built state? */ - luai_userstateclose(L); - luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size); - luaZ_freebuffer(L, &g->buff); - freestack(L); - lua_assert(gettotalbytes(g) == sizeof(LG)); - (*g->frealloc)(g->ud, fromstate(L), sizeof(LG), 0); /* free main block */ -} - - -LUA_API lua_State *lua_newthread (lua_State *L) { - lua_State *L1; - lua_lock(L); - luaC_checkGC(L); - L1 = &luaC_newobj(L, LUA_TTHREAD, sizeof(LX), NULL, offsetof(LX, l))->th; - setthvalue(L, L->top, L1); - api_incr_top(L); - preinit_state(L1, G(L)); - L1->hookmask = L->hookmask; - L1->basehookcount = L->basehookcount; - L1->hook = L->hook; - resethookcount(L1); - luai_userstatethread(L, L1); - stack_init(L1, L); /* init stack */ - lua_unlock(L); - return L1; -} - - -void luaE_freethread (lua_State *L, lua_State *L1) { - LX *l = fromstate(L1); - luaF_close(L1, L1->stack); /* close all upvalues for this thread */ - lua_assert(L1->openupval == NULL); - luai_userstatefree(L, L1); - freestack(L1); - luaM_free(L, l); -} - - -LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) { - int i; - lua_State *L; - global_State *g; - LG *l = cast(LG *, (*f)(ud, NULL, LUA_TTHREAD, sizeof(LG))); - if (l == NULL) return NULL; - L = &l->l.l; - g = &l->g; - L->next = NULL; - L->tt = LUA_TTHREAD; - g->currentwhite = bit2mask(WHITE0BIT, FIXEDBIT); - L->marked = luaC_white(g); - g->gckind = KGC_NORMAL; - preinit_state(L, g); - g->frealloc = f; - g->ud = ud; - g->mainthread = L; - g->seed = makeseed(L); - g->uvhead.u.l.prev = &g->uvhead; - g->uvhead.u.l.next = &g->uvhead; - g->gcrunning = 0; /* no GC while building state */ - g->GCestimate = 0; - g->strt.size = 0; - g->strt.nuse = 0; - g->strt.hash = NULL; - setnilvalue(&g->l_registry); - luaZ_initbuffer(L, &g->buff); - g->panic = NULL; - g->version = NULL; - g->gcstate = GCSpause; - g->allgc = NULL; - g->finobj = NULL; - g->tobefnz = NULL; - g->sweepgc = g->sweepfin = NULL; - g->gray = g->grayagain = NULL; - g->weak = g->ephemeron = g->allweak = NULL; - g->totalbytes = sizeof(LG); - g->GCdebt = 0; - g->gcpause = LUAI_GCPAUSE; - g->gcmajorinc = LUAI_GCMAJOR; - g->gcstepmul = LUAI_GCMUL; - for (i=0; i < LUA_NUMTAGS; i++) g->mt[i] = NULL; - if (luaD_rawrunprotected(L, f_luaopen, NULL) != LUA_OK) { - /* memory allocation error: free partial state */ - close_state(L); - L = NULL; - } - return L; -} - - -LUA_API void lua_close (lua_State *L) { - L = G(L)->mainthread; /* only the main thread can be closed */ - lua_lock(L); - close_state(L); -} - - diff --git a/Build/source/libs/lua52/lua52-src/src/lstate.h b/Build/source/libs/lua52/lua52-src/src/lstate.h deleted file mode 100644 index daffd9aacfb..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lstate.h +++ /dev/null @@ -1,228 +0,0 @@ -/* -** $Id: lstate.h,v 2.82.1.1 2013/04/12 18:48:47 roberto Exp $ -** Global State -** See Copyright Notice in lua.h -*/ - -#ifndef lstate_h -#define lstate_h - -#include "lua.h" - -#include "lobject.h" -#include "ltm.h" -#include "lzio.h" - - -/* - -** Some notes about garbage-collected objects: All objects in Lua must -** be kept somehow accessible until being freed. -** -** Lua keeps most objects linked in list g->allgc. The link uses field -** 'next' of the CommonHeader. -** -** Strings are kept in several lists headed by the array g->strt.hash. -** -** Open upvalues are not subject to independent garbage collection. They -** are collected together with their respective threads. Lua keeps a -** double-linked list with all open upvalues (g->uvhead) so that it can -** mark objects referred by them. (They are always gray, so they must -** be remarked in the atomic step. Usually their contents would be marked -** when traversing the respective threads, but the thread may already be -** dead, while the upvalue is still accessible through closures.) -** -** Objects with finalizers are kept in the list g->finobj. -** -** The list g->tobefnz links all objects being finalized. - -*/ - - -struct lua_longjmp; /* defined in ldo.c */ - - - -/* extra stack space to handle TM calls and some other extras */ -#define EXTRA_STACK 5 - - -#define BASIC_STACK_SIZE (2*LUA_MINSTACK) - - -/* kinds of Garbage Collection */ -#define KGC_NORMAL 0 -#define KGC_EMERGENCY 1 /* gc was forced by an allocation failure */ -#define KGC_GEN 2 /* generational collection */ - - -typedef struct stringtable { - GCObject **hash; - lu_int32 nuse; /* number of elements */ - int size; -} stringtable; - - -/* -** information about a call -*/ -typedef struct CallInfo { - StkId func; /* function index in the stack */ - StkId top; /* top for this function */ - struct CallInfo *previous, *next; /* dynamic call link */ - short nresults; /* expected number of results from this function */ - lu_byte callstatus; - ptrdiff_t extra; - union { - struct { /* only for Lua functions */ - StkId base; /* base for this function */ - const Instruction *savedpc; - } l; - struct { /* only for C functions */ - int ctx; /* context info. in case of yields */ - lua_CFunction k; /* continuation in case of yields */ - ptrdiff_t old_errfunc; - lu_byte old_allowhook; - lu_byte status; - } c; - } u; -} CallInfo; - - -/* -** Bits in CallInfo status -*/ -#define CIST_LUA (1<<0) /* call is running a Lua function */ -#define CIST_HOOKED (1<<1) /* call is running a debug hook */ -#define CIST_REENTRY (1<<2) /* call is running on same invocation of - luaV_execute of previous call */ -#define CIST_YIELDED (1<<3) /* call reentered after suspension */ -#define CIST_YPCALL (1<<4) /* call is a yieldable protected call */ -#define CIST_STAT (1<<5) /* call has an error status (pcall) */ -#define CIST_TAIL (1<<6) /* call was tail called */ -#define CIST_HOOKYIELD (1<<7) /* last hook called yielded */ - - -#define isLua(ci) ((ci)->callstatus & CIST_LUA) - - -/* -** `global state', shared by all threads of this state -*/ -typedef struct global_State { - lua_Alloc frealloc; /* function to reallocate memory */ - void *ud; /* auxiliary data to `frealloc' */ - lu_mem totalbytes; /* number of bytes currently allocated - GCdebt */ - l_mem GCdebt; /* bytes allocated not yet compensated by the collector */ - lu_mem GCmemtrav; /* memory traversed by the GC */ - lu_mem GCestimate; /* an estimate of the non-garbage memory in use */ - stringtable strt; /* hash table for strings */ - TValue l_registry; - unsigned int seed; /* randomized seed for hashes */ - lu_byte currentwhite; - lu_byte gcstate; /* state of garbage collector */ - lu_byte gckind; /* kind of GC running */ - lu_byte gcrunning; /* true if GC is running */ - int sweepstrgc; /* position of sweep in `strt' */ - GCObject *allgc; /* list of all collectable objects */ - GCObject *finobj; /* list of collectable objects with finalizers */ - GCObject **sweepgc; /* current position of sweep in list 'allgc' */ - GCObject **sweepfin; /* current position of sweep in list 'finobj' */ - GCObject *gray; /* list of gray objects */ - GCObject *grayagain; /* list of objects to be traversed atomically */ - GCObject *weak; /* list of tables with weak values */ - GCObject *ephemeron; /* list of ephemeron tables (weak keys) */ - GCObject *allweak; /* list of all-weak tables */ - GCObject *tobefnz; /* list of userdata to be GC */ - UpVal uvhead; /* head of double-linked list of all open upvalues */ - Mbuffer buff; /* temporary buffer for string concatenation */ - int gcpause; /* size of pause between successive GCs */ - int gcmajorinc; /* pause between major collections (only in gen. mode) */ - int gcstepmul; /* GC `granularity' */ - lua_CFunction panic; /* to be called in unprotected errors */ - struct lua_State *mainthread; - const lua_Number *version; /* pointer to version number */ - TString *memerrmsg; /* memory-error message */ - TString *tmname[TM_N]; /* array with tag-method names */ - struct Table *mt[LUA_NUMTAGS]; /* metatables for basic types */ -} global_State; - - -/* -** `per thread' state -*/ -struct lua_State { - CommonHeader; - lu_byte status; - StkId top; /* first free slot in the stack */ - global_State *l_G; - CallInfo *ci; /* call info for current function */ - const Instruction *oldpc; /* last pc traced */ - StkId stack_last; /* last free slot in the stack */ - StkId stack; /* stack base */ - int stacksize; - unsigned short nny; /* number of non-yieldable calls in stack */ - unsigned short nCcalls; /* number of nested C calls */ - lu_byte hookmask; - lu_byte allowhook; - int basehookcount; - int hookcount; - lua_Hook hook; - GCObject *openupval; /* list of open upvalues in this stack */ - GCObject *gclist; - struct lua_longjmp *errorJmp; /* current error recover point */ - ptrdiff_t errfunc; /* current error handling function (stack index) */ - CallInfo base_ci; /* CallInfo for first level (C calling Lua) */ -}; - - -#define G(L) (L->l_G) - - -/* -** Union of all collectable objects -*/ -union GCObject { - GCheader gch; /* common header */ - union TString ts; - union Udata u; - union Closure cl; - struct Table h; - struct Proto p; - struct UpVal uv; - struct lua_State th; /* thread */ -}; - - -#define gch(o) (&(o)->gch) - -/* macros to convert a GCObject into a specific value */ -#define rawgco2ts(o) \ - check_exp(novariant((o)->gch.tt) == LUA_TSTRING, &((o)->ts)) -#define gco2ts(o) (&rawgco2ts(o)->tsv) -#define rawgco2u(o) check_exp((o)->gch.tt == LUA_TUSERDATA, &((o)->u)) -#define gco2u(o) (&rawgco2u(o)->uv) -#define gco2lcl(o) check_exp((o)->gch.tt == LUA_TLCL, &((o)->cl.l)) -#define gco2ccl(o) check_exp((o)->gch.tt == LUA_TCCL, &((o)->cl.c)) -#define gco2cl(o) \ - check_exp(novariant((o)->gch.tt) == LUA_TFUNCTION, &((o)->cl)) -#define gco2t(o) check_exp((o)->gch.tt == LUA_TTABLE, &((o)->h)) -#define gco2p(o) check_exp((o)->gch.tt == LUA_TPROTO, &((o)->p)) -#define gco2uv(o) check_exp((o)->gch.tt == LUA_TUPVAL, &((o)->uv)) -#define gco2th(o) check_exp((o)->gch.tt == LUA_TTHREAD, &((o)->th)) - -/* macro to convert any Lua object into a GCObject */ -#define obj2gco(v) (cast(GCObject *, (v))) - - -/* actual number of total bytes allocated */ -#define gettotalbytes(g) ((g)->totalbytes + (g)->GCdebt) - -LUAI_FUNC void luaE_setdebt (global_State *g, l_mem debt); -LUAI_FUNC void luaE_freethread (lua_State *L, lua_State *L1); -LUAI_FUNC CallInfo *luaE_extendCI (lua_State *L); -LUAI_FUNC void luaE_freeCI (lua_State *L); - - -#endif - diff --git a/Build/source/libs/lua52/lua52-src/src/lstring.c b/Build/source/libs/lua52/lua52-src/src/lstring.c deleted file mode 100644 index af96c89c183..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lstring.c +++ /dev/null @@ -1,185 +0,0 @@ -/* -** $Id: lstring.c,v 2.26.1.1 2013/04/12 18:48:47 roberto Exp $ -** String table (keeps all strings handled by Lua) -** See Copyright Notice in lua.h -*/ - - -#include <string.h> - -#define lstring_c -#define LUA_CORE - -#include "lua.h" - -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" - - -/* -** Lua will use at most ~(2^LUAI_HASHLIMIT) bytes from a string to -** compute its hash -*/ -#if !defined(LUAI_HASHLIMIT) -#define LUAI_HASHLIMIT 5 -#endif - - -/* -** equality for long strings -*/ -int luaS_eqlngstr (TString *a, TString *b) { - size_t len = a->tsv.len; - lua_assert(a->tsv.tt == LUA_TLNGSTR && b->tsv.tt == LUA_TLNGSTR); - return (a == b) || /* same instance or... */ - ((len == b->tsv.len) && /* equal length and ... */ - (memcmp(getstr(a), getstr(b), len) == 0)); /* equal contents */ -} - - -/* -** equality for strings -*/ -int luaS_eqstr (TString *a, TString *b) { - return (a->tsv.tt == b->tsv.tt) && - (a->tsv.tt == LUA_TSHRSTR ? eqshrstr(a, b) : luaS_eqlngstr(a, b)); -} - - -unsigned int luaS_hash (const char *str, size_t l, unsigned int seed) { - unsigned int h = seed ^ cast(unsigned int, l); - size_t l1; - size_t step = (l >> LUAI_HASHLIMIT) + 1; - for (l1 = l; l1 >= step; l1 -= step) - h = h ^ ((h<<5) + (h>>2) + cast_byte(str[l1 - 1])); - return h; -} - - -/* -** resizes the string table -*/ -void luaS_resize (lua_State *L, int newsize) { - int i; - stringtable *tb = &G(L)->strt; - /* cannot resize while GC is traversing strings */ - luaC_runtilstate(L, ~bitmask(GCSsweepstring)); - if (newsize > tb->size) { - luaM_reallocvector(L, tb->hash, tb->size, newsize, GCObject *); - for (i = tb->size; i < newsize; i++) tb->hash[i] = NULL; - } - /* rehash */ - for (i=0; i<tb->size; i++) { - GCObject *p = tb->hash[i]; - tb->hash[i] = NULL; - while (p) { /* for each node in the list */ - GCObject *next = gch(p)->next; /* save next */ - unsigned int h = lmod(gco2ts(p)->hash, newsize); /* new position */ - gch(p)->next = tb->hash[h]; /* chain it */ - tb->hash[h] = p; - resetoldbit(p); /* see MOVE OLD rule */ - p = next; - } - } - if (newsize < tb->size) { - /* shrinking slice must be empty */ - lua_assert(tb->hash[newsize] == NULL && tb->hash[tb->size - 1] == NULL); - luaM_reallocvector(L, tb->hash, tb->size, newsize, GCObject *); - } - tb->size = newsize; -} - - -/* -** creates a new string object -*/ -static TString *createstrobj (lua_State *L, const char *str, size_t l, - int tag, unsigned int h, GCObject **list) { - TString *ts; - size_t totalsize; /* total size of TString object */ - totalsize = sizeof(TString) + ((l + 1) * sizeof(char)); - ts = &luaC_newobj(L, tag, totalsize, list, 0)->ts; - ts->tsv.len = l; - ts->tsv.hash = h; - ts->tsv.extra = 0; - memcpy(ts+1, str, l*sizeof(char)); - ((char *)(ts+1))[l] = '\0'; /* ending 0 */ - return ts; -} - - -/* -** creates a new short string, inserting it into string table -*/ -static TString *newshrstr (lua_State *L, const char *str, size_t l, - unsigned int h) { - GCObject **list; /* (pointer to) list where it will be inserted */ - stringtable *tb = &G(L)->strt; - TString *s; - if (tb->nuse >= cast(lu_int32, tb->size) && tb->size <= MAX_INT/2) - luaS_resize(L, tb->size*2); /* too crowded */ - list = &tb->hash[lmod(h, tb->size)]; - s = createstrobj(L, str, l, LUA_TSHRSTR, h, list); - tb->nuse++; - return s; -} - - -/* -** checks whether short string exists and reuses it or creates a new one -*/ -static TString *internshrstr (lua_State *L, const char *str, size_t l) { - GCObject *o; - global_State *g = G(L); - unsigned int h = luaS_hash(str, l, g->seed); - for (o = g->strt.hash[lmod(h, g->strt.size)]; - o != NULL; - o = gch(o)->next) { - TString *ts = rawgco2ts(o); - if (h == ts->tsv.hash && - l == ts->tsv.len && - (memcmp(str, getstr(ts), l * sizeof(char)) == 0)) { - if (isdead(G(L), o)) /* string is dead (but was not collected yet)? */ - changewhite(o); /* resurrect it */ - return ts; - } - } - return newshrstr(L, str, l, h); /* not found; create a new string */ -} - - -/* -** new string (with explicit length) -*/ -TString *luaS_newlstr (lua_State *L, const char *str, size_t l) { - if (l <= LUAI_MAXSHORTLEN) /* short string? */ - return internshrstr(L, str, l); - else { - if (l + 1 > (MAX_SIZET - sizeof(TString))/sizeof(char)) - luaM_toobig(L); - return createstrobj(L, str, l, LUA_TLNGSTR, G(L)->seed, NULL); - } -} - - -/* -** new zero-terminated string -*/ -TString *luaS_new (lua_State *L, const char *str) { - return luaS_newlstr(L, str, strlen(str)); -} - - -Udata *luaS_newudata (lua_State *L, size_t s, Table *e) { - Udata *u; - if (s > MAX_SIZET - sizeof(Udata)) - luaM_toobig(L); - u = &luaC_newobj(L, LUA_TUSERDATA, sizeof(Udata) + s, NULL, 0)->u; - u->uv.len = s; - u->uv.metatable = NULL; - u->uv.env = e; - return u; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lstring.h b/Build/source/libs/lua52/lua52-src/src/lstring.h deleted file mode 100644 index 260e7f169bd..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lstring.h +++ /dev/null @@ -1,46 +0,0 @@ -/* -** $Id: lstring.h,v 1.49.1.1 2013/04/12 18:48:47 roberto Exp $ -** String table (keep all strings handled by Lua) -** See Copyright Notice in lua.h -*/ - -#ifndef lstring_h -#define lstring_h - -#include "lgc.h" -#include "lobject.h" -#include "lstate.h" - - -#define sizestring(s) (sizeof(union TString)+((s)->len+1)*sizeof(char)) - -#define sizeudata(u) (sizeof(union Udata)+(u)->len) - -#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \ - (sizeof(s)/sizeof(char))-1)) - -#define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT) - - -/* -** test whether a string is a reserved word -*/ -#define isreserved(s) ((s)->tsv.tt == LUA_TSHRSTR && (s)->tsv.extra > 0) - - -/* -** equality for short strings, which are always internalized -*/ -#define eqshrstr(a,b) check_exp((a)->tsv.tt == LUA_TSHRSTR, (a) == (b)) - - -LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed); -LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b); -LUAI_FUNC int luaS_eqstr (TString *a, TString *b); -LUAI_FUNC void luaS_resize (lua_State *L, int newsize); -LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, Table *e); -LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l); -LUAI_FUNC TString *luaS_new (lua_State *L, const char *str); - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lstrlib.c b/Build/source/libs/lua52/lua52-src/src/lstrlib.c deleted file mode 100644 index 9261fd220db..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lstrlib.c +++ /dev/null @@ -1,1019 +0,0 @@ -/* -** $Id: lstrlib.c,v 1.178.1.1 2013/04/12 18:48:47 roberto Exp $ -** Standard library for string operations and pattern-matching -** See Copyright Notice in lua.h -*/ - - -#include <ctype.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define lstrlib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -/* -** maximum number of captures that a pattern can do during -** pattern-matching. This limit is arbitrary. -*/ -#if !defined(LUA_MAXCAPTURES) -#define LUA_MAXCAPTURES 32 -#endif - - -/* macro to `unsign' a character */ -#define uchar(c) ((unsigned char)(c)) - - - -static int str_len (lua_State *L) { - size_t l; - luaL_checklstring(L, 1, &l); - lua_pushinteger(L, (lua_Integer)l); - return 1; -} - - -/* translate a relative string position: negative means back from end */ -static size_t posrelat (ptrdiff_t pos, size_t len) { - if (pos >= 0) return (size_t)pos; - else if (0u - (size_t)pos > len) return 0; - else return len - ((size_t)-pos) + 1; -} - - -static int str_sub (lua_State *L) { - size_t l; - const char *s = luaL_checklstring(L, 1, &l); - size_t start = posrelat(luaL_checkinteger(L, 2), l); - size_t end = posrelat(luaL_optinteger(L, 3, -1), l); - if (start < 1) start = 1; - if (end > l) end = l; - if (start <= end) - lua_pushlstring(L, s + start - 1, end - start + 1); - else lua_pushliteral(L, ""); - return 1; -} - - -static int str_reverse (lua_State *L) { - size_t l, i; - luaL_Buffer b; - const char *s = luaL_checklstring(L, 1, &l); - char *p = luaL_buffinitsize(L, &b, l); - for (i = 0; i < l; i++) - p[i] = s[l - i - 1]; - luaL_pushresultsize(&b, l); - return 1; -} - - -static int str_lower (lua_State *L) { - size_t l; - size_t i; - luaL_Buffer b; - const char *s = luaL_checklstring(L, 1, &l); - char *p = luaL_buffinitsize(L, &b, l); - for (i=0; i<l; i++) - p[i] = tolower(uchar(s[i])); - luaL_pushresultsize(&b, l); - return 1; -} - - -static int str_upper (lua_State *L) { - size_t l; - size_t i; - luaL_Buffer b; - const char *s = luaL_checklstring(L, 1, &l); - char *p = luaL_buffinitsize(L, &b, l); - for (i=0; i<l; i++) - p[i] = toupper(uchar(s[i])); - luaL_pushresultsize(&b, l); - return 1; -} - - -/* reasonable limit to avoid arithmetic overflow */ -#define MAXSIZE ((~(size_t)0) >> 1) - -static int str_rep (lua_State *L) { - size_t l, lsep; - const char *s = luaL_checklstring(L, 1, &l); - int n = luaL_checkint(L, 2); - const char *sep = luaL_optlstring(L, 3, "", &lsep); - if (n <= 0) lua_pushliteral(L, ""); - else if (l + lsep < l || l + lsep >= MAXSIZE / n) /* may overflow? */ - return luaL_error(L, "resulting string too large"); - else { - size_t totallen = n * l + (n - 1) * lsep; - luaL_Buffer b; - char *p = luaL_buffinitsize(L, &b, totallen); - while (n-- > 1) { /* first n-1 copies (followed by separator) */ - memcpy(p, s, l * sizeof(char)); p += l; - if (lsep > 0) { /* avoid empty 'memcpy' (may be expensive) */ - memcpy(p, sep, lsep * sizeof(char)); p += lsep; - } - } - memcpy(p, s, l * sizeof(char)); /* last copy (not followed by separator) */ - luaL_pushresultsize(&b, totallen); - } - return 1; -} - - -static int str_byte (lua_State *L) { - size_t l; - const char *s = luaL_checklstring(L, 1, &l); - size_t posi = posrelat(luaL_optinteger(L, 2, 1), l); - size_t pose = posrelat(luaL_optinteger(L, 3, posi), l); - int n, i; - if (posi < 1) posi = 1; - if (pose > l) pose = l; - if (posi > pose) return 0; /* empty interval; return no values */ - n = (int)(pose - posi + 1); - if (posi + n <= pose) /* (size_t -> int) overflow? */ - return luaL_error(L, "string slice too long"); - luaL_checkstack(L, n, "string slice too long"); - for (i=0; i<n; i++) - lua_pushinteger(L, uchar(s[posi+i-1])); - return n; -} - - -static int str_char (lua_State *L) { - int n = lua_gettop(L); /* number of arguments */ - int i; - luaL_Buffer b; - char *p = luaL_buffinitsize(L, &b, n); - for (i=1; i<=n; i++) { - int c = luaL_checkint(L, i); - luaL_argcheck(L, uchar(c) == c, i, "value out of range"); - p[i - 1] = uchar(c); - } - luaL_pushresultsize(&b, n); - return 1; -} - - -static int writer (lua_State *L, const void* b, size_t size, void* B) { - (void)L; - luaL_addlstring((luaL_Buffer*) B, (const char *)b, size); - return 0; -} - - -static int str_dump (lua_State *L) { - luaL_Buffer b; - luaL_checktype(L, 1, LUA_TFUNCTION); - lua_settop(L, 1); - luaL_buffinit(L,&b); - if (lua_dump(L, writer, &b) != 0) - return luaL_error(L, "unable to dump given function"); - luaL_pushresult(&b); - return 1; -} - - - -/* -** {====================================================== -** PATTERN MATCHING -** ======================================================= -*/ - - -#define CAP_UNFINISHED (-1) -#define CAP_POSITION (-2) - - -typedef struct MatchState { - int matchdepth; /* control for recursive depth (to avoid C stack overflow) */ - const char *src_init; /* init of source string */ - const char *src_end; /* end ('\0') of source string */ - const char *p_end; /* end ('\0') of pattern */ - lua_State *L; - int level; /* total number of captures (finished or unfinished) */ - struct { - const char *init; - ptrdiff_t len; - } capture[LUA_MAXCAPTURES]; -} MatchState; - - -/* recursive function */ -static const char *match (MatchState *ms, const char *s, const char *p); - - -/* maximum recursion depth for 'match' */ -#if !defined(MAXCCALLS) -#define MAXCCALLS 200 -#endif - - -#define L_ESC '%' -#define SPECIALS "^$*+?.([%-" - - -static int check_capture (MatchState *ms, int l) { - l -= '1'; - if (l < 0 || l >= ms->level || ms->capture[l].len == CAP_UNFINISHED) - return luaL_error(ms->L, "invalid capture index %%%d", l + 1); - return l; -} - - -static int capture_to_close (MatchState *ms) { - int level = ms->level; - for (level--; level>=0; level--) - if (ms->capture[level].len == CAP_UNFINISHED) return level; - return luaL_error(ms->L, "invalid pattern capture"); -} - - -static const char *classend (MatchState *ms, const char *p) { - switch (*p++) { - case L_ESC: { - if (p == ms->p_end) - luaL_error(ms->L, "malformed pattern (ends with " LUA_QL("%%") ")"); - return p+1; - } - case '[': { - if (*p == '^') p++; - do { /* look for a `]' */ - if (p == ms->p_end) - luaL_error(ms->L, "malformed pattern (missing " LUA_QL("]") ")"); - if (*(p++) == L_ESC && p < ms->p_end) - p++; /* skip escapes (e.g. `%]') */ - } while (*p != ']'); - return p+1; - } - default: { - return p; - } - } -} - - -static int match_class (int c, int cl) { - int res; - switch (tolower(cl)) { - case 'a' : res = isalpha(c); break; - case 'c' : res = iscntrl(c); break; - case 'd' : res = isdigit(c); break; - case 'g' : res = isgraph(c); break; - case 'l' : res = islower(c); break; - case 'p' : res = ispunct(c); break; - case 's' : res = isspace(c); break; - case 'u' : res = isupper(c); break; - case 'w' : res = isalnum(c); break; - case 'x' : res = isxdigit(c); break; - case 'z' : res = (c == 0); break; /* deprecated option */ - default: return (cl == c); - } - return (islower(cl) ? res : !res); -} - - -static int matchbracketclass (int c, const char *p, const char *ec) { - int sig = 1; - if (*(p+1) == '^') { - sig = 0; - p++; /* skip the `^' */ - } - while (++p < ec) { - if (*p == L_ESC) { - p++; - if (match_class(c, uchar(*p))) - return sig; - } - else if ((*(p+1) == '-') && (p+2 < ec)) { - p+=2; - if (uchar(*(p-2)) <= c && c <= uchar(*p)) - return sig; - } - else if (uchar(*p) == c) return sig; - } - return !sig; -} - - -static int singlematch (MatchState *ms, const char *s, const char *p, - const char *ep) { - if (s >= ms->src_end) - return 0; - else { - int c = uchar(*s); - switch (*p) { - case '.': return 1; /* matches any char */ - case L_ESC: return match_class(c, uchar(*(p+1))); - case '[': return matchbracketclass(c, p, ep-1); - default: return (uchar(*p) == c); - } - } -} - - -static const char *matchbalance (MatchState *ms, const char *s, - const char *p) { - if (p >= ms->p_end - 1) - luaL_error(ms->L, "malformed pattern " - "(missing arguments to " LUA_QL("%%b") ")"); - if (*s != *p) return NULL; - else { - int b = *p; - int e = *(p+1); - int cont = 1; - while (++s < ms->src_end) { - if (*s == e) { - if (--cont == 0) return s+1; - } - else if (*s == b) cont++; - } - } - return NULL; /* string ends out of balance */ -} - - -static const char *max_expand (MatchState *ms, const char *s, - const char *p, const char *ep) { - ptrdiff_t i = 0; /* counts maximum expand for item */ - while (singlematch(ms, s + i, p, ep)) - i++; - /* keeps trying to match with the maximum repetitions */ - while (i>=0) { - const char *res = match(ms, (s+i), ep+1); - if (res) return res; - i--; /* else didn't match; reduce 1 repetition to try again */ - } - return NULL; -} - - -static const char *min_expand (MatchState *ms, const char *s, - const char *p, const char *ep) { - for (;;) { - const char *res = match(ms, s, ep+1); - if (res != NULL) - return res; - else if (singlematch(ms, s, p, ep)) - s++; /* try with one more repetition */ - else return NULL; - } -} - - -static const char *start_capture (MatchState *ms, const char *s, - const char *p, int what) { - const char *res; - int level = ms->level; - if (level >= LUA_MAXCAPTURES) luaL_error(ms->L, "too many captures"); - ms->capture[level].init = s; - ms->capture[level].len = what; - ms->level = level+1; - if ((res=match(ms, s, p)) == NULL) /* match failed? */ - ms->level--; /* undo capture */ - return res; -} - - -static const char *end_capture (MatchState *ms, const char *s, - const char *p) { - int l = capture_to_close(ms); - const char *res; - ms->capture[l].len = s - ms->capture[l].init; /* close capture */ - if ((res = match(ms, s, p)) == NULL) /* match failed? */ - ms->capture[l].len = CAP_UNFINISHED; /* undo capture */ - return res; -} - - -static const char *match_capture (MatchState *ms, const char *s, int l) { - size_t len; - l = check_capture(ms, l); - len = ms->capture[l].len; - if ((size_t)(ms->src_end-s) >= len && - memcmp(ms->capture[l].init, s, len) == 0) - return s+len; - else return NULL; -} - - -static const char *match (MatchState *ms, const char *s, const char *p) { - if (ms->matchdepth-- == 0) - luaL_error(ms->L, "pattern too complex"); - init: /* using goto's to optimize tail recursion */ - if (p != ms->p_end) { /* end of pattern? */ - switch (*p) { - case '(': { /* start capture */ - if (*(p + 1) == ')') /* position capture? */ - s = start_capture(ms, s, p + 2, CAP_POSITION); - else - s = start_capture(ms, s, p + 1, CAP_UNFINISHED); - break; - } - case ')': { /* end capture */ - s = end_capture(ms, s, p + 1); - break; - } - case '$': { - if ((p + 1) != ms->p_end) /* is the `$' the last char in pattern? */ - goto dflt; /* no; go to default */ - s = (s == ms->src_end) ? s : NULL; /* check end of string */ - break; - } - case L_ESC: { /* escaped sequences not in the format class[*+?-]? */ - switch (*(p + 1)) { - case 'b': { /* balanced string? */ - s = matchbalance(ms, s, p + 2); - if (s != NULL) { - p += 4; goto init; /* return match(ms, s, p + 4); */ - } /* else fail (s == NULL) */ - break; - } - case 'f': { /* frontier? */ - const char *ep; char previous; - p += 2; - if (*p != '[') - luaL_error(ms->L, "missing " LUA_QL("[") " after " - LUA_QL("%%f") " in pattern"); - ep = classend(ms, p); /* points to what is next */ - previous = (s == ms->src_init) ? '\0' : *(s - 1); - if (!matchbracketclass(uchar(previous), p, ep - 1) && - matchbracketclass(uchar(*s), p, ep - 1)) { - p = ep; goto init; /* return match(ms, s, ep); */ - } - s = NULL; /* match failed */ - break; - } - case '0': case '1': case '2': case '3': - case '4': case '5': case '6': case '7': - case '8': case '9': { /* capture results (%0-%9)? */ - s = match_capture(ms, s, uchar(*(p + 1))); - if (s != NULL) { - p += 2; goto init; /* return match(ms, s, p + 2) */ - } - break; - } - default: goto dflt; - } - break; - } - default: dflt: { /* pattern class plus optional suffix */ - const char *ep = classend(ms, p); /* points to optional suffix */ - /* does not match at least once? */ - if (!singlematch(ms, s, p, ep)) { - if (*ep == '*' || *ep == '?' || *ep == '-') { /* accept empty? */ - p = ep + 1; goto init; /* return match(ms, s, ep + 1); */ - } - else /* '+' or no suffix */ - s = NULL; /* fail */ - } - else { /* matched once */ - switch (*ep) { /* handle optional suffix */ - case '?': { /* optional */ - const char *res; - if ((res = match(ms, s + 1, ep + 1)) != NULL) - s = res; - else { - p = ep + 1; goto init; /* else return match(ms, s, ep + 1); */ - } - break; - } - case '+': /* 1 or more repetitions */ - s++; /* 1 match already done */ - /* go through */ - case '*': /* 0 or more repetitions */ - s = max_expand(ms, s, p, ep); - break; - case '-': /* 0 or more repetitions (minimum) */ - s = min_expand(ms, s, p, ep); - break; - default: /* no suffix */ - s++; p = ep; goto init; /* return match(ms, s + 1, ep); */ - } - } - break; - } - } - } - ms->matchdepth++; - return s; -} - - - -static const char *lmemfind (const char *s1, size_t l1, - const char *s2, size_t l2) { - if (l2 == 0) return s1; /* empty strings are everywhere */ - else if (l2 > l1) return NULL; /* avoids a negative `l1' */ - else { - const char *init; /* to search for a `*s2' inside `s1' */ - l2--; /* 1st char will be checked by `memchr' */ - l1 = l1-l2; /* `s2' cannot be found after that */ - while (l1 > 0 && (init = (const char *)memchr(s1, *s2, l1)) != NULL) { - init++; /* 1st char is already checked */ - if (memcmp(init, s2+1, l2) == 0) - return init-1; - else { /* correct `l1' and `s1' to try again */ - l1 -= init-s1; - s1 = init; - } - } - return NULL; /* not found */ - } -} - - -static void push_onecapture (MatchState *ms, int i, const char *s, - const char *e) { - if (i >= ms->level) { - if (i == 0) /* ms->level == 0, too */ - lua_pushlstring(ms->L, s, e - s); /* add whole match */ - else - luaL_error(ms->L, "invalid capture index"); - } - else { - ptrdiff_t l = ms->capture[i].len; - if (l == CAP_UNFINISHED) luaL_error(ms->L, "unfinished capture"); - if (l == CAP_POSITION) - lua_pushinteger(ms->L, ms->capture[i].init - ms->src_init + 1); - else - lua_pushlstring(ms->L, ms->capture[i].init, l); - } -} - - -static int push_captures (MatchState *ms, const char *s, const char *e) { - int i; - int nlevels = (ms->level == 0 && s) ? 1 : ms->level; - luaL_checkstack(ms->L, nlevels, "too many captures"); - for (i = 0; i < nlevels; i++) - push_onecapture(ms, i, s, e); - return nlevels; /* number of strings pushed */ -} - - -/* check whether pattern has no special characters */ -static int nospecials (const char *p, size_t l) { - size_t upto = 0; - do { - if (strpbrk(p + upto, SPECIALS)) - return 0; /* pattern has a special character */ - upto += strlen(p + upto) + 1; /* may have more after \0 */ - } while (upto <= l); - return 1; /* no special chars found */ -} - - -static int str_find_aux (lua_State *L, int find) { - size_t ls, lp; - const char *s = luaL_checklstring(L, 1, &ls); - const char *p = luaL_checklstring(L, 2, &lp); - size_t init = posrelat(luaL_optinteger(L, 3, 1), ls); - if (init < 1) init = 1; - else if (init > ls + 1) { /* start after string's end? */ - lua_pushnil(L); /* cannot find anything */ - return 1; - } - /* explicit request or no special characters? */ - if (find && (lua_toboolean(L, 4) || nospecials(p, lp))) { - /* do a plain search */ - const char *s2 = lmemfind(s + init - 1, ls - init + 1, p, lp); - if (s2) { - lua_pushinteger(L, s2 - s + 1); - lua_pushinteger(L, s2 - s + lp); - return 2; - } - } - else { - MatchState ms; - const char *s1 = s + init - 1; - int anchor = (*p == '^'); - if (anchor) { - p++; lp--; /* skip anchor character */ - } - ms.L = L; - ms.matchdepth = MAXCCALLS; - ms.src_init = s; - ms.src_end = s + ls; - ms.p_end = p + lp; - do { - const char *res; - ms.level = 0; - lua_assert(ms.matchdepth == MAXCCALLS); - if ((res=match(&ms, s1, p)) != NULL) { - if (find) { - lua_pushinteger(L, s1 - s + 1); /* start */ - lua_pushinteger(L, res - s); /* end */ - return push_captures(&ms, NULL, 0) + 2; - } - else - return push_captures(&ms, s1, res); - } - } while (s1++ < ms.src_end && !anchor); - } - lua_pushnil(L); /* not found */ - return 1; -} - - -static int str_find (lua_State *L) { - return str_find_aux(L, 1); -} - - -static int str_match (lua_State *L) { - return str_find_aux(L, 0); -} - - -static int gmatch_aux (lua_State *L) { - MatchState ms; - size_t ls, lp; - const char *s = lua_tolstring(L, lua_upvalueindex(1), &ls); - const char *p = lua_tolstring(L, lua_upvalueindex(2), &lp); - const char *src; - ms.L = L; - ms.matchdepth = MAXCCALLS; - ms.src_init = s; - ms.src_end = s+ls; - ms.p_end = p + lp; - for (src = s + (size_t)lua_tointeger(L, lua_upvalueindex(3)); - src <= ms.src_end; - src++) { - const char *e; - ms.level = 0; - lua_assert(ms.matchdepth == MAXCCALLS); - if ((e = match(&ms, src, p)) != NULL) { - lua_Integer newstart = e-s; - if (e == src) newstart++; /* empty match? go at least one position */ - lua_pushinteger(L, newstart); - lua_replace(L, lua_upvalueindex(3)); - return push_captures(&ms, src, e); - } - } - return 0; /* not found */ -} - - -static int gmatch (lua_State *L) { - luaL_checkstring(L, 1); - luaL_checkstring(L, 2); - lua_settop(L, 2); - lua_pushinteger(L, 0); - lua_pushcclosure(L, gmatch_aux, 3); - return 1; -} - - -static void add_s (MatchState *ms, luaL_Buffer *b, const char *s, - const char *e) { - size_t l, i; - const char *news = lua_tolstring(ms->L, 3, &l); - for (i = 0; i < l; i++) { - if (news[i] != L_ESC) - luaL_addchar(b, news[i]); - else { - i++; /* skip ESC */ - if (!isdigit(uchar(news[i]))) { - if (news[i] != L_ESC) - luaL_error(ms->L, "invalid use of " LUA_QL("%c") - " in replacement string", L_ESC); - luaL_addchar(b, news[i]); - } - else if (news[i] == '0') - luaL_addlstring(b, s, e - s); - else { - push_onecapture(ms, news[i] - '1', s, e); - luaL_addvalue(b); /* add capture to accumulated result */ - } - } - } -} - - -static void add_value (MatchState *ms, luaL_Buffer *b, const char *s, - const char *e, int tr) { - lua_State *L = ms->L; - switch (tr) { - case LUA_TFUNCTION: { - int n; - lua_pushvalue(L, 3); - n = push_captures(ms, s, e); - lua_call(L, n, 1); - break; - } - case LUA_TTABLE: { - push_onecapture(ms, 0, s, e); - lua_gettable(L, 3); - break; - } - default: { /* LUA_TNUMBER or LUA_TSTRING */ - add_s(ms, b, s, e); - return; - } - } - if (!lua_toboolean(L, -1)) { /* nil or false? */ - lua_pop(L, 1); - lua_pushlstring(L, s, e - s); /* keep original text */ - } - else if (!lua_isstring(L, -1)) - luaL_error(L, "invalid replacement value (a %s)", luaL_typename(L, -1)); - luaL_addvalue(b); /* add result to accumulator */ -} - - -static int str_gsub (lua_State *L) { - size_t srcl, lp; - const char *src = luaL_checklstring(L, 1, &srcl); - const char *p = luaL_checklstring(L, 2, &lp); - int tr = lua_type(L, 3); - size_t max_s = luaL_optinteger(L, 4, srcl+1); - int anchor = (*p == '^'); - size_t n = 0; - MatchState ms; - luaL_Buffer b; - luaL_argcheck(L, tr == LUA_TNUMBER || tr == LUA_TSTRING || - tr == LUA_TFUNCTION || tr == LUA_TTABLE, 3, - "string/function/table expected"); - luaL_buffinit(L, &b); - if (anchor) { - p++; lp--; /* skip anchor character */ - } - ms.L = L; - ms.matchdepth = MAXCCALLS; - ms.src_init = src; - ms.src_end = src+srcl; - ms.p_end = p + lp; - while (n < max_s) { - const char *e; - ms.level = 0; - lua_assert(ms.matchdepth == MAXCCALLS); - e = match(&ms, src, p); - if (e) { - n++; - add_value(&ms, &b, src, e, tr); - } - if (e && e>src) /* non empty match? */ - src = e; /* skip it */ - else if (src < ms.src_end) - luaL_addchar(&b, *src++); - else break; - if (anchor) break; - } - luaL_addlstring(&b, src, ms.src_end-src); - luaL_pushresult(&b); - lua_pushinteger(L, n); /* number of substitutions */ - return 2; -} - -/* }====================================================== */ - - - -/* -** {====================================================== -** STRING FORMAT -** ======================================================= -*/ - -/* -** LUA_INTFRMLEN is the length modifier for integer conversions in -** 'string.format'; LUA_INTFRM_T is the integer type corresponding to -** the previous length -*/ -#if !defined(LUA_INTFRMLEN) /* { */ -#if defined(LUA_USE_LONGLONG) - -#define LUA_INTFRMLEN "ll" -#define LUA_INTFRM_T long long - -#else - -#define LUA_INTFRMLEN "l" -#define LUA_INTFRM_T long - -#endif -#endif /* } */ - - -/* -** LUA_FLTFRMLEN is the length modifier for float conversions in -** 'string.format'; LUA_FLTFRM_T is the float type corresponding to -** the previous length -*/ -#if !defined(LUA_FLTFRMLEN) - -#define LUA_FLTFRMLEN "" -#define LUA_FLTFRM_T double - -#endif - - -/* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */ -#define MAX_ITEM 512 -/* valid flags in a format specification */ -#define FLAGS "-+ #0" -/* -** maximum size of each format specification (such as '%-099.99d') -** (+10 accounts for %99.99x plus margin of error) -*/ -#define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTFRMLEN) + 10) - - -static void addquoted (lua_State *L, luaL_Buffer *b, int arg) { - size_t l; - const char *s = luaL_checklstring(L, arg, &l); - luaL_addchar(b, '"'); - while (l--) { - if (*s == '"' || *s == '\\' || *s == '\n') { - luaL_addchar(b, '\\'); - luaL_addchar(b, *s); - } - else if (*s == '\0' || iscntrl(uchar(*s))) { - char buff[10]; - if (!isdigit(uchar(*(s+1)))) - sprintf(buff, "\\%d", (int)uchar(*s)); - else - sprintf(buff, "\\%03d", (int)uchar(*s)); - luaL_addstring(b, buff); - } - else - luaL_addchar(b, *s); - s++; - } - luaL_addchar(b, '"'); -} - -static const char *scanformat (lua_State *L, const char *strfrmt, char *form) { - const char *p = strfrmt; - while (*p != '\0' && strchr(FLAGS, *p) != NULL) p++; /* skip flags */ - if ((size_t)(p - strfrmt) >= sizeof(FLAGS)/sizeof(char)) - luaL_error(L, "invalid format (repeated flags)"); - if (isdigit(uchar(*p))) p++; /* skip width */ - if (isdigit(uchar(*p))) p++; /* (2 digits at most) */ - if (*p == '.') { - p++; - if (isdigit(uchar(*p))) p++; /* skip precision */ - if (isdigit(uchar(*p))) p++; /* (2 digits at most) */ - } - if (isdigit(uchar(*p))) - luaL_error(L, "invalid format (width or precision too long)"); - *(form++) = '%'; - memcpy(form, strfrmt, (p - strfrmt + 1) * sizeof(char)); - form += p - strfrmt + 1; - *form = '\0'; - return p; -} - - -/* -** add length modifier into formats -*/ -static void addlenmod (char *form, const char *lenmod) { - size_t l = strlen(form); - size_t lm = strlen(lenmod); - char spec = form[l - 1]; - strcpy(form + l - 1, lenmod); - form[l + lm - 1] = spec; - form[l + lm] = '\0'; -} - - -static int str_format (lua_State *L) { - int top = lua_gettop(L); - int arg = 1; - size_t sfl; - const char *strfrmt = luaL_checklstring(L, arg, &sfl); - const char *strfrmt_end = strfrmt+sfl; - luaL_Buffer b; - luaL_buffinit(L, &b); - while (strfrmt < strfrmt_end) { - if (*strfrmt != L_ESC) - luaL_addchar(&b, *strfrmt++); - else if (*++strfrmt == L_ESC) - luaL_addchar(&b, *strfrmt++); /* %% */ - else { /* format item */ - char form[MAX_FORMAT]; /* to store the format (`%...') */ - char *buff = luaL_prepbuffsize(&b, MAX_ITEM); /* to put formatted item */ - int nb = 0; /* number of bytes in added item */ - if (++arg > top) - luaL_argerror(L, arg, "no value"); - strfrmt = scanformat(L, strfrmt, form); - switch (*strfrmt++) { - case 'c': { - nb = sprintf(buff, form, luaL_checkint(L, arg)); - break; - } - case 'd': case 'i': { - lua_Number n = luaL_checknumber(L, arg); - LUA_INTFRM_T ni = (LUA_INTFRM_T)n; - lua_Number diff = n - (lua_Number)ni; - luaL_argcheck(L, -1 < diff && diff < 1, arg, - "not a number in proper range"); - addlenmod(form, LUA_INTFRMLEN); - nb = sprintf(buff, form, ni); - break; - } - case 'o': case 'u': case 'x': case 'X': { - lua_Number n = luaL_checknumber(L, arg); - unsigned LUA_INTFRM_T ni = (unsigned LUA_INTFRM_T)n; - lua_Number diff = n - (lua_Number)ni; - luaL_argcheck(L, -1 < diff && diff < 1, arg, - "not a non-negative number in proper range"); - addlenmod(form, LUA_INTFRMLEN); - nb = sprintf(buff, form, ni); - break; - } - case 'e': case 'E': case 'f': -#if defined(LUA_USE_AFORMAT) - case 'a': case 'A': -#endif - case 'g': case 'G': { - addlenmod(form, LUA_FLTFRMLEN); - nb = sprintf(buff, form, (LUA_FLTFRM_T)luaL_checknumber(L, arg)); - break; - } - case 'q': { - addquoted(L, &b, arg); - break; - } - case 's': { - size_t l; - const char *s = luaL_tolstring(L, arg, &l); - if (!strchr(form, '.') && l >= 100) { - /* no precision and string is too long to be formatted; - keep original string */ - luaL_addvalue(&b); - break; - } - else { - nb = sprintf(buff, form, s); - lua_pop(L, 1); /* remove result from 'luaL_tolstring' */ - break; - } - } - default: { /* also treat cases `pnLlh' */ - return luaL_error(L, "invalid option " LUA_QL("%%%c") " to " - LUA_QL("format"), *(strfrmt - 1)); - } - } - luaL_addsize(&b, nb); - } - } - luaL_pushresult(&b); - return 1; -} - -/* }====================================================== */ - - -static const luaL_Reg strlib[] = { - {"byte", str_byte}, - {"char", str_char}, - {"dump", str_dump}, - {"find", str_find}, - {"format", str_format}, - {"gmatch", gmatch}, - {"gsub", str_gsub}, - {"len", str_len}, - {"lower", str_lower}, - {"match", str_match}, - {"rep", str_rep}, - {"reverse", str_reverse}, - {"sub", str_sub}, - {"upper", str_upper}, - {NULL, NULL} -}; - - -static void createmetatable (lua_State *L) { - lua_createtable(L, 0, 1); /* table to be metatable for strings */ - lua_pushliteral(L, ""); /* dummy string */ - lua_pushvalue(L, -2); /* copy table */ - lua_setmetatable(L, -2); /* set table as metatable for strings */ - lua_pop(L, 1); /* pop dummy string */ - lua_pushvalue(L, -2); /* get string library */ - lua_setfield(L, -2, "__index"); /* metatable.__index = string */ - lua_pop(L, 1); /* pop metatable */ -} - - -/* -** Open string library -*/ -LUAMOD_API int luaopen_string (lua_State *L) { - luaL_newlib(L, strlib); - createmetatable(L); - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/ltable.c b/Build/source/libs/lua52/lua52-src/src/ltable.c deleted file mode 100644 index 5d76f97ec3c..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ltable.c +++ /dev/null @@ -1,588 +0,0 @@ -/* -** $Id: ltable.c,v 2.72.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua tables (hash) -** See Copyright Notice in lua.h -*/ - - -/* -** Implementation of tables (aka arrays, objects, or hash tables). -** Tables keep its elements in two parts: an array part and a hash part. -** Non-negative integer keys are all candidates to be kept in the array -** part. The actual size of the array is the largest `n' such that at -** least half the slots between 0 and n are in use. -** Hash uses a mix of chained scatter table with Brent's variation. -** A main invariant of these tables is that, if an element is not -** in its main position (i.e. the `original' position that its hash gives -** to it), then the colliding element is in its own main position. -** Hence even when the load factor reaches 100%, performance remains good. -*/ - -#include <string.h> - -#define ltable_c -#define LUA_CORE - -#include "lua.h" - -#include "ldebug.h" -#include "ldo.h" -#include "lgc.h" -#include "lmem.h" -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "lvm.h" - - -/* -** max size of array part is 2^MAXBITS -*/ -#if LUAI_BITSINT >= 32 -#define MAXBITS 30 -#else -#define MAXBITS (LUAI_BITSINT-2) -#endif - -#define MAXASIZE (1 << MAXBITS) - - -#define hashpow2(t,n) (gnode(t, lmod((n), sizenode(t)))) - -#define hashstr(t,str) hashpow2(t, (str)->tsv.hash) -#define hashboolean(t,p) hashpow2(t, p) - - -/* -** for some types, it is better to avoid modulus by power of 2, as -** they tend to have many 2 factors. -*/ -#define hashmod(t,n) (gnode(t, ((n) % ((sizenode(t)-1)|1)))) - - -#define hashpointer(t,p) hashmod(t, IntPoint(p)) - - -#define dummynode (&dummynode_) - -#define isdummy(n) ((n) == dummynode) - -static const Node dummynode_ = { - {NILCONSTANT}, /* value */ - {{NILCONSTANT, NULL}} /* key */ -}; - - -/* -** hash for lua_Numbers -*/ -static Node *hashnum (const Table *t, lua_Number n) { - int i; - luai_hashnum(i, n); - if (i < 0) { - if (cast(unsigned int, i) == 0u - i) /* use unsigned to avoid overflows */ - i = 0; /* handle INT_MIN */ - i = -i; /* must be a positive value */ - } - return hashmod(t, i); -} - - - -/* -** returns the `main' position of an element in a table (that is, the index -** of its hash value) -*/ -static Node *mainposition (const Table *t, const TValue *key) { - switch (ttype(key)) { - case LUA_TNUMBER: - return hashnum(t, nvalue(key)); - case LUA_TLNGSTR: { - TString *s = rawtsvalue(key); - if (s->tsv.extra == 0) { /* no hash? */ - s->tsv.hash = luaS_hash(getstr(s), s->tsv.len, s->tsv.hash); - s->tsv.extra = 1; /* now it has its hash */ - } - return hashstr(t, rawtsvalue(key)); - } - case LUA_TSHRSTR: - return hashstr(t, rawtsvalue(key)); - case LUA_TBOOLEAN: - return hashboolean(t, bvalue(key)); - case LUA_TLIGHTUSERDATA: - return hashpointer(t, pvalue(key)); - case LUA_TLCF: - return hashpointer(t, fvalue(key)); - default: - return hashpointer(t, gcvalue(key)); - } -} - - -/* -** returns the index for `key' if `key' is an appropriate key to live in -** the array part of the table, -1 otherwise. -*/ -static int arrayindex (const TValue *key) { - if (ttisnumber(key)) { - lua_Number n = nvalue(key); - int k; - lua_number2int(k, n); - if (luai_numeq(cast_num(k), n)) - return k; - } - return -1; /* `key' did not match some condition */ -} - - -/* -** returns the index of a `key' for table traversals. First goes all -** elements in the array part, then elements in the hash part. The -** beginning of a traversal is signaled by -1. -*/ -static int findindex (lua_State *L, Table *t, StkId key) { - int i; - if (ttisnil(key)) return -1; /* first iteration */ - i = arrayindex(key); - if (0 < i && i <= t->sizearray) /* is `key' inside array part? */ - return i-1; /* yes; that's the index (corrected to C) */ - else { - Node *n = mainposition(t, key); - for (;;) { /* check whether `key' is somewhere in the chain */ - /* key may be dead already, but it is ok to use it in `next' */ - if (luaV_rawequalobj(gkey(n), key) || - (ttisdeadkey(gkey(n)) && iscollectable(key) && - deadvalue(gkey(n)) == gcvalue(key))) { - i = cast_int(n - gnode(t, 0)); /* key index in hash table */ - /* hash elements are numbered after array ones */ - return i + t->sizearray; - } - else n = gnext(n); - if (n == NULL) - luaG_runerror(L, "invalid key to " LUA_QL("next")); /* key not found */ - } - } -} - - -int luaH_next (lua_State *L, Table *t, StkId key) { - int i = findindex(L, t, key); /* find original element */ - for (i++; i < t->sizearray; i++) { /* try first array part */ - if (!ttisnil(&t->array[i])) { /* a non-nil value? */ - setnvalue(key, cast_num(i+1)); - setobj2s(L, key+1, &t->array[i]); - return 1; - } - } - for (i -= t->sizearray; i < sizenode(t); i++) { /* then hash part */ - if (!ttisnil(gval(gnode(t, i)))) { /* a non-nil value? */ - setobj2s(L, key, gkey(gnode(t, i))); - setobj2s(L, key+1, gval(gnode(t, i))); - return 1; - } - } - return 0; /* no more elements */ -} - - -/* -** {============================================================= -** Rehash -** ============================================================== -*/ - - -static int computesizes (int nums[], int *narray) { - int i; - int twotoi; /* 2^i */ - int a = 0; /* number of elements smaller than 2^i */ - int na = 0; /* number of elements to go to array part */ - int n = 0; /* optimal size for array part */ - for (i = 0, twotoi = 1; twotoi/2 < *narray; i++, twotoi *= 2) { - if (nums[i] > 0) { - a += nums[i]; - if (a > twotoi/2) { /* more than half elements present? */ - n = twotoi; /* optimal size (till now) */ - na = a; /* all elements smaller than n will go to array part */ - } - } - if (a == *narray) break; /* all elements already counted */ - } - *narray = n; - lua_assert(*narray/2 <= na && na <= *narray); - return na; -} - - -static int countint (const TValue *key, int *nums) { - int k = arrayindex(key); - if (0 < k && k <= MAXASIZE) { /* is `key' an appropriate array index? */ - nums[luaO_ceillog2(k)]++; /* count as such */ - return 1; - } - else - return 0; -} - - -static int numusearray (const Table *t, int *nums) { - int lg; - int ttlg; /* 2^lg */ - int ause = 0; /* summation of `nums' */ - int i = 1; /* count to traverse all array keys */ - for (lg=0, ttlg=1; lg<=MAXBITS; lg++, ttlg*=2) { /* for each slice */ - int lc = 0; /* counter */ - int lim = ttlg; - if (lim > t->sizearray) { - lim = t->sizearray; /* adjust upper limit */ - if (i > lim) - break; /* no more elements to count */ - } - /* count elements in range (2^(lg-1), 2^lg] */ - for (; i <= lim; i++) { - if (!ttisnil(&t->array[i-1])) - lc++; - } - nums[lg] += lc; - ause += lc; - } - return ause; -} - - -static int numusehash (const Table *t, int *nums, int *pnasize) { - int totaluse = 0; /* total number of elements */ - int ause = 0; /* summation of `nums' */ - int i = sizenode(t); - while (i--) { - Node *n = &t->node[i]; - if (!ttisnil(gval(n))) { - ause += countint(gkey(n), nums); - totaluse++; - } - } - *pnasize += ause; - return totaluse; -} - - -static void setarrayvector (lua_State *L, Table *t, int size) { - int i; - luaM_reallocvector(L, t->array, t->sizearray, size, TValue); - for (i=t->sizearray; i<size; i++) - setnilvalue(&t->array[i]); - t->sizearray = size; -} - - -static void setnodevector (lua_State *L, Table *t, int size) { - int lsize; - if (size == 0) { /* no elements to hash part? */ - t->node = cast(Node *, dummynode); /* use common `dummynode' */ - lsize = 0; - } - else { - int i; - lsize = luaO_ceillog2(size); - if (lsize > MAXBITS) - luaG_runerror(L, "table overflow"); - size = twoto(lsize); - t->node = luaM_newvector(L, size, Node); - for (i=0; i<size; i++) { - Node *n = gnode(t, i); - gnext(n) = NULL; - setnilvalue(gkey(n)); - setnilvalue(gval(n)); - } - } - t->lsizenode = cast_byte(lsize); - t->lastfree = gnode(t, size); /* all positions are free */ -} - - -void luaH_resize (lua_State *L, Table *t, int nasize, int nhsize) { - int i; - int oldasize = t->sizearray; - int oldhsize = t->lsizenode; - Node *nold = t->node; /* save old hash ... */ - if (nasize > oldasize) /* array part must grow? */ - setarrayvector(L, t, nasize); - /* create new hash part with appropriate size */ - setnodevector(L, t, nhsize); - if (nasize < oldasize) { /* array part must shrink? */ - t->sizearray = nasize; - /* re-insert elements from vanishing slice */ - for (i=nasize; i<oldasize; i++) { - if (!ttisnil(&t->array[i])) - luaH_setint(L, t, i + 1, &t->array[i]); - } - /* shrink array */ - luaM_reallocvector(L, t->array, oldasize, nasize, TValue); - } - /* re-insert elements from hash part */ - for (i = twoto(oldhsize) - 1; i >= 0; i--) { - Node *old = nold+i; - if (!ttisnil(gval(old))) { - /* doesn't need barrier/invalidate cache, as entry was - already present in the table */ - setobjt2t(L, luaH_set(L, t, gkey(old)), gval(old)); - } - } - if (!isdummy(nold)) - luaM_freearray(L, nold, cast(size_t, twoto(oldhsize))); /* free old array */ -} - - -void luaH_resizearray (lua_State *L, Table *t, int nasize) { - int nsize = isdummy(t->node) ? 0 : sizenode(t); - luaH_resize(L, t, nasize, nsize); -} - - -static void rehash (lua_State *L, Table *t, const TValue *ek) { - int nasize, na; - int nums[MAXBITS+1]; /* nums[i] = number of keys with 2^(i-1) < k <= 2^i */ - int i; - int totaluse; - for (i=0; i<=MAXBITS; i++) nums[i] = 0; /* reset counts */ - nasize = numusearray(t, nums); /* count keys in array part */ - totaluse = nasize; /* all those keys are integer keys */ - totaluse += numusehash(t, nums, &nasize); /* count keys in hash part */ - /* count extra key */ - nasize += countint(ek, nums); - totaluse++; - /* compute new size for array part */ - na = computesizes(nums, &nasize); - /* resize the table to new computed sizes */ - luaH_resize(L, t, nasize, totaluse - na); -} - - - -/* -** }============================================================= -*/ - - -Table *luaH_new (lua_State *L) { - Table *t = &luaC_newobj(L, LUA_TTABLE, sizeof(Table), NULL, 0)->h; - t->metatable = NULL; - t->flags = cast_byte(~0); - t->array = NULL; - t->sizearray = 0; - setnodevector(L, t, 0); - return t; -} - - -void luaH_free (lua_State *L, Table *t) { - if (!isdummy(t->node)) - luaM_freearray(L, t->node, cast(size_t, sizenode(t))); - luaM_freearray(L, t->array, t->sizearray); - luaM_free(L, t); -} - - -static Node *getfreepos (Table *t) { - while (t->lastfree > t->node) { - t->lastfree--; - if (ttisnil(gkey(t->lastfree))) - return t->lastfree; - } - return NULL; /* could not find a free place */ -} - - - -/* -** inserts a new key into a hash table; first, check whether key's main -** position is free. If not, check whether colliding node is in its main -** position or not: if it is not, move colliding node to an empty place and -** put new key in its main position; otherwise (colliding node is in its main -** position), new key goes to an empty position. -*/ -TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key) { - Node *mp; - if (ttisnil(key)) luaG_runerror(L, "table index is nil"); - else if (ttisnumber(key) && luai_numisnan(L, nvalue(key))) - luaG_runerror(L, "table index is NaN"); - mp = mainposition(t, key); - if (!ttisnil(gval(mp)) || isdummy(mp)) { /* main position is taken? */ - Node *othern; - Node *n = getfreepos(t); /* get a free place */ - if (n == NULL) { /* cannot find a free place? */ - rehash(L, t, key); /* grow table */ - /* whatever called 'newkey' take care of TM cache and GC barrier */ - return luaH_set(L, t, key); /* insert key into grown table */ - } - lua_assert(!isdummy(n)); - othern = mainposition(t, gkey(mp)); - if (othern != mp) { /* is colliding node out of its main position? */ - /* yes; move colliding node into free position */ - while (gnext(othern) != mp) othern = gnext(othern); /* find previous */ - gnext(othern) = n; /* redo the chain with `n' in place of `mp' */ - *n = *mp; /* copy colliding node into free pos. (mp->next also goes) */ - gnext(mp) = NULL; /* now `mp' is free */ - setnilvalue(gval(mp)); - } - else { /* colliding node is in its own main position */ - /* new node will go into free position */ - gnext(n) = gnext(mp); /* chain new position */ - gnext(mp) = n; - mp = n; - } - } - setobj2t(L, gkey(mp), key); - luaC_barrierback(L, obj2gco(t), key); - lua_assert(ttisnil(gval(mp))); - return gval(mp); -} - - -/* -** search function for integers -*/ -const TValue *luaH_getint (Table *t, int key) { - /* (1 <= key && key <= t->sizearray) */ - if (cast(unsigned int, key-1) < cast(unsigned int, t->sizearray)) - return &t->array[key-1]; - else { - lua_Number nk = cast_num(key); - Node *n = hashnum(t, nk); - do { /* check whether `key' is somewhere in the chain */ - if (ttisnumber(gkey(n)) && luai_numeq(nvalue(gkey(n)), nk)) - return gval(n); /* that's it */ - else n = gnext(n); - } while (n); - return luaO_nilobject; - } -} - - -/* -** search function for short strings -*/ -const TValue *luaH_getstr (Table *t, TString *key) { - Node *n = hashstr(t, key); - lua_assert(key->tsv.tt == LUA_TSHRSTR); - do { /* check whether `key' is somewhere in the chain */ - if (ttisshrstring(gkey(n)) && eqshrstr(rawtsvalue(gkey(n)), key)) - return gval(n); /* that's it */ - else n = gnext(n); - } while (n); - return luaO_nilobject; -} - - -/* -** main search function -*/ -const TValue *luaH_get (Table *t, const TValue *key) { - switch (ttype(key)) { - case LUA_TSHRSTR: return luaH_getstr(t, rawtsvalue(key)); - case LUA_TNIL: return luaO_nilobject; - case LUA_TNUMBER: { - int k; - lua_Number n = nvalue(key); - lua_number2int(k, n); - if (luai_numeq(cast_num(k), n)) /* index is int? */ - return luaH_getint(t, k); /* use specialized version */ - /* else go through */ - } - default: { - Node *n = mainposition(t, key); - do { /* check whether `key' is somewhere in the chain */ - if (luaV_rawequalobj(gkey(n), key)) - return gval(n); /* that's it */ - else n = gnext(n); - } while (n); - return luaO_nilobject; - } - } -} - - -/* -** beware: when using this function you probably need to check a GC -** barrier and invalidate the TM cache. -*/ -TValue *luaH_set (lua_State *L, Table *t, const TValue *key) { - const TValue *p = luaH_get(t, key); - if (p != luaO_nilobject) - return cast(TValue *, p); - else return luaH_newkey(L, t, key); -} - - -void luaH_setint (lua_State *L, Table *t, int key, TValue *value) { - const TValue *p = luaH_getint(t, key); - TValue *cell; - if (p != luaO_nilobject) - cell = cast(TValue *, p); - else { - TValue k; - setnvalue(&k, cast_num(key)); - cell = luaH_newkey(L, t, &k); - } - setobj2t(L, cell, value); -} - - -static int unbound_search (Table *t, unsigned int j) { - unsigned int i = j; /* i is zero or a present index */ - j++; - /* find `i' and `j' such that i is present and j is not */ - while (!ttisnil(luaH_getint(t, j))) { - i = j; - j *= 2; - if (j > cast(unsigned int, MAX_INT)) { /* overflow? */ - /* table was built with bad purposes: resort to linear search */ - i = 1; - while (!ttisnil(luaH_getint(t, i))) i++; - return i - 1; - } - } - /* now do a binary search between them */ - while (j - i > 1) { - unsigned int m = (i+j)/2; - if (ttisnil(luaH_getint(t, m))) j = m; - else i = m; - } - return i; -} - - -/* -** Try to find a boundary in table `t'. A `boundary' is an integer index -** such that t[i] is non-nil and t[i+1] is nil (and 0 if t[1] is nil). -*/ -int luaH_getn (Table *t) { - unsigned int j = t->sizearray; - if (j > 0 && ttisnil(&t->array[j - 1])) { - /* there is a boundary in the array part: (binary) search for it */ - unsigned int i = 0; - while (j - i > 1) { - unsigned int m = (i+j)/2; - if (ttisnil(&t->array[m - 1])) j = m; - else i = m; - } - return i; - } - /* else must find a boundary in hash part */ - else if (isdummy(t->node)) /* hash part is empty? */ - return j; /* that is easy... */ - else return unbound_search(t, j); -} - - - -#if defined(LUA_DEBUG) - -Node *luaH_mainposition (const Table *t, const TValue *key) { - return mainposition(t, key); -} - -int luaH_isdummy (Node *n) { return isdummy(n); } - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/ltable.h b/Build/source/libs/lua52/lua52-src/src/ltable.h deleted file mode 100644 index d69449b2b86..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ltable.h +++ /dev/null @@ -1,45 +0,0 @@ -/* -** $Id: ltable.h,v 2.16.1.2 2013/08/30 15:49:41 roberto Exp $ -** Lua tables (hash) -** See Copyright Notice in lua.h -*/ - -#ifndef ltable_h -#define ltable_h - -#include "lobject.h" - - -#define gnode(t,i) (&(t)->node[i]) -#define gkey(n) (&(n)->i_key.tvk) -#define gval(n) (&(n)->i_val) -#define gnext(n) ((n)->i_key.nk.next) - -#define invalidateTMcache(t) ((t)->flags = 0) - -/* returns the key, given the value of a table entry */ -#define keyfromval(v) \ - (gkey(cast(Node *, cast(char *, (v)) - offsetof(Node, i_val)))) - - -LUAI_FUNC const TValue *luaH_getint (Table *t, int key); -LUAI_FUNC void luaH_setint (lua_State *L, Table *t, int key, TValue *value); -LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key); -LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key); -LUAI_FUNC TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key); -LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key); -LUAI_FUNC Table *luaH_new (lua_State *L); -LUAI_FUNC void luaH_resize (lua_State *L, Table *t, int nasize, int nhsize); -LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, int nasize); -LUAI_FUNC void luaH_free (lua_State *L, Table *t); -LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key); -LUAI_FUNC int luaH_getn (Table *t); - - -#if defined(LUA_DEBUG) -LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key); -LUAI_FUNC int luaH_isdummy (Node *n); -#endif - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/ltablib.c b/Build/source/libs/lua52/lua52-src/src/ltablib.c deleted file mode 100644 index 99764d26d10..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ltablib.c +++ /dev/null @@ -1,285 +0,0 @@ -/* -** $Id: ltablib.c,v 1.65.1.2 2014/05/07 16:32:55 roberto Exp $ -** Library for Table Manipulation -** See Copyright Notice in lua.h -*/ - - -#include <limits.h> -#include <stddef.h> - -#define ltablib_c -#define LUA_LIB - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -#define aux_getn(L,n) (luaL_checktype(L, n, LUA_TTABLE), luaL_len(L, n)) - - - -#if defined(LUA_COMPAT_MAXN) -static int maxn (lua_State *L) { - lua_Number max = 0; - luaL_checktype(L, 1, LUA_TTABLE); - lua_pushnil(L); /* first key */ - while (lua_next(L, 1)) { - lua_pop(L, 1); /* remove value */ - if (lua_type(L, -1) == LUA_TNUMBER) { - lua_Number v = lua_tonumber(L, -1); - if (v > max) max = v; - } - } - lua_pushnumber(L, max); - return 1; -} -#endif - - -static int tinsert (lua_State *L) { - int e = aux_getn(L, 1) + 1; /* first empty element */ - int pos; /* where to insert new element */ - switch (lua_gettop(L)) { - case 2: { /* called with only 2 arguments */ - pos = e; /* insert new element at the end */ - break; - } - case 3: { - int i; - pos = luaL_checkint(L, 2); /* 2nd argument is the position */ - luaL_argcheck(L, 1 <= pos && pos <= e, 2, "position out of bounds"); - for (i = e; i > pos; i--) { /* move up elements */ - lua_rawgeti(L, 1, i-1); - lua_rawseti(L, 1, i); /* t[i] = t[i-1] */ - } - break; - } - default: { - return luaL_error(L, "wrong number of arguments to " LUA_QL("insert")); - } - } - lua_rawseti(L, 1, pos); /* t[pos] = v */ - return 0; -} - - -static int tremove (lua_State *L) { - int size = aux_getn(L, 1); - int pos = luaL_optint(L, 2, size); - if (pos != size) /* validate 'pos' if given */ - luaL_argcheck(L, 1 <= pos && pos <= size + 1, 1, "position out of bounds"); - lua_rawgeti(L, 1, pos); /* result = t[pos] */ - for ( ; pos < size; pos++) { - lua_rawgeti(L, 1, pos+1); - lua_rawseti(L, 1, pos); /* t[pos] = t[pos+1] */ - } - lua_pushnil(L); - lua_rawseti(L, 1, pos); /* t[pos] = nil */ - return 1; -} - - -static void addfield (lua_State *L, luaL_Buffer *b, int i) { - lua_rawgeti(L, 1, i); - if (!lua_isstring(L, -1)) - luaL_error(L, "invalid value (%s) at index %d in table for " - LUA_QL("concat"), luaL_typename(L, -1), i); - luaL_addvalue(b); -} - - -static int tconcat (lua_State *L) { - luaL_Buffer b; - size_t lsep; - int i, last; - const char *sep = luaL_optlstring(L, 2, "", &lsep); - luaL_checktype(L, 1, LUA_TTABLE); - i = luaL_optint(L, 3, 1); - last = luaL_opt(L, luaL_checkint, 4, luaL_len(L, 1)); - luaL_buffinit(L, &b); - for (; i < last; i++) { - addfield(L, &b, i); - luaL_addlstring(&b, sep, lsep); - } - if (i == last) /* add last value (if interval was not empty) */ - addfield(L, &b, i); - luaL_pushresult(&b); - return 1; -} - - -/* -** {====================================================== -** Pack/unpack -** ======================================================= -*/ - -static int pack (lua_State *L) { - int n = lua_gettop(L); /* number of elements to pack */ - lua_createtable(L, n, 1); /* create result table */ - lua_pushinteger(L, n); - lua_setfield(L, -2, "n"); /* t.n = number of elements */ - if (n > 0) { /* at least one element? */ - int i; - lua_pushvalue(L, 1); - lua_rawseti(L, -2, 1); /* insert first element */ - lua_replace(L, 1); /* move table into index 1 */ - for (i = n; i >= 2; i--) /* assign other elements */ - lua_rawseti(L, 1, i); - } - return 1; /* return table */ -} - - -static int unpack (lua_State *L) { - int i, e; - unsigned int n; - luaL_checktype(L, 1, LUA_TTABLE); - i = luaL_optint(L, 2, 1); - e = luaL_opt(L, luaL_checkint, 3, luaL_len(L, 1)); - if (i > e) return 0; /* empty range */ - n = (unsigned int)e - (unsigned int)i; /* number of elements minus 1 */ - if (n > (INT_MAX - 10) || !lua_checkstack(L, ++n)) - return luaL_error(L, "too many results to unpack"); - lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */ - while (i++ < e) /* push arg[i + 1...e] */ - lua_rawgeti(L, 1, i); - return n; -} - -/* }====================================================== */ - - - -/* -** {====================================================== -** Quicksort -** (based on `Algorithms in MODULA-3', Robert Sedgewick; -** Addison-Wesley, 1993.) -** ======================================================= -*/ - - -static void set2 (lua_State *L, int i, int j) { - lua_rawseti(L, 1, i); - lua_rawseti(L, 1, j); -} - -static int sort_comp (lua_State *L, int a, int b) { - if (!lua_isnil(L, 2)) { /* function? */ - int res; - lua_pushvalue(L, 2); - lua_pushvalue(L, a-1); /* -1 to compensate function */ - lua_pushvalue(L, b-2); /* -2 to compensate function and `a' */ - lua_call(L, 2, 1); - res = lua_toboolean(L, -1); - lua_pop(L, 1); - return res; - } - else /* a < b? */ - return lua_compare(L, a, b, LUA_OPLT); -} - -static void auxsort (lua_State *L, int l, int u) { - while (l < u) { /* for tail recursion */ - int i, j; - /* sort elements a[l], a[(l+u)/2] and a[u] */ - lua_rawgeti(L, 1, l); - lua_rawgeti(L, 1, u); - if (sort_comp(L, -1, -2)) /* a[u] < a[l]? */ - set2(L, l, u); /* swap a[l] - a[u] */ - else - lua_pop(L, 2); - if (u-l == 1) break; /* only 2 elements */ - i = (l+u)/2; - lua_rawgeti(L, 1, i); - lua_rawgeti(L, 1, l); - if (sort_comp(L, -2, -1)) /* a[i]<a[l]? */ - set2(L, i, l); - else { - lua_pop(L, 1); /* remove a[l] */ - lua_rawgeti(L, 1, u); - if (sort_comp(L, -1, -2)) /* a[u]<a[i]? */ - set2(L, i, u); - else - lua_pop(L, 2); - } - if (u-l == 2) break; /* only 3 elements */ - lua_rawgeti(L, 1, i); /* Pivot */ - lua_pushvalue(L, -1); - lua_rawgeti(L, 1, u-1); - set2(L, i, u-1); - /* a[l] <= P == a[u-1] <= a[u], only need to sort from l+1 to u-2 */ - i = l; j = u-1; - for (;;) { /* invariant: a[l..i] <= P <= a[j..u] */ - /* repeat ++i until a[i] >= P */ - while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) { - if (i>=u) luaL_error(L, "invalid order function for sorting"); - lua_pop(L, 1); /* remove a[i] */ - } - /* repeat --j until a[j] <= P */ - while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) { - if (j<=l) luaL_error(L, "invalid order function for sorting"); - lua_pop(L, 1); /* remove a[j] */ - } - if (j<i) { - lua_pop(L, 3); /* pop pivot, a[i], a[j] */ - break; - } - set2(L, i, j); - } - lua_rawgeti(L, 1, u-1); - lua_rawgeti(L, 1, i); - set2(L, u-1, i); /* swap pivot (a[u-1]) with a[i] */ - /* a[l..i-1] <= a[i] == P <= a[i+1..u] */ - /* adjust so that smaller half is in [j..i] and larger one in [l..u] */ - if (i-l < u-i) { - j=l; i=i-1; l=i+2; - } - else { - j=i+1; i=u; u=j-2; - } - auxsort(L, j, i); /* call recursively the smaller one */ - } /* repeat the routine for the larger one */ -} - -static int sort (lua_State *L) { - int n = aux_getn(L, 1); - luaL_checkstack(L, 40, ""); /* assume array is smaller than 2^40 */ - if (!lua_isnoneornil(L, 2)) /* is there a 2nd argument? */ - luaL_checktype(L, 2, LUA_TFUNCTION); - lua_settop(L, 2); /* make sure there is two arguments */ - auxsort(L, 1, n); - return 0; -} - -/* }====================================================== */ - - -static const luaL_Reg tab_funcs[] = { - {"concat", tconcat}, -#if defined(LUA_COMPAT_MAXN) - {"maxn", maxn}, -#endif - {"insert", tinsert}, - {"pack", pack}, - {"unpack", unpack}, - {"remove", tremove}, - {"sort", sort}, - {NULL, NULL} -}; - - -LUAMOD_API int luaopen_table (lua_State *L) { - luaL_newlib(L, tab_funcs); -#if defined(LUA_COMPAT_UNPACK) - /* _G.unpack = table.unpack */ - lua_getfield(L, -1, "unpack"); - lua_setglobal(L, "unpack"); -#endif - return 1; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/ltm.c b/Build/source/libs/lua52/lua52-src/src/ltm.c deleted file mode 100644 index 69b4ed77271..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ltm.c +++ /dev/null @@ -1,77 +0,0 @@ -/* -** $Id: ltm.c,v 2.14.1.1 2013/04/12 18:48:47 roberto Exp $ -** Tag methods -** See Copyright Notice in lua.h -*/ - - -#include <string.h> - -#define ltm_c -#define LUA_CORE - -#include "lua.h" - -#include "lobject.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" - - -static const char udatatypename[] = "userdata"; - -LUAI_DDEF const char *const luaT_typenames_[LUA_TOTALTAGS] = { - "no value", - "nil", "boolean", udatatypename, "number", - "string", "table", "function", udatatypename, "thread", - "proto", "upval" /* these last two cases are used for tests only */ -}; - - -void luaT_init (lua_State *L) { - static const char *const luaT_eventname[] = { /* ORDER TM */ - "__index", "__newindex", - "__gc", "__mode", "__len", "__eq", - "__add", "__sub", "__mul", "__div", "__mod", - "__pow", "__unm", "__lt", "__le", - "__concat", "__call" - }; - int i; - for (i=0; i<TM_N; i++) { - G(L)->tmname[i] = luaS_new(L, luaT_eventname[i]); - luaS_fix(G(L)->tmname[i]); /* never collect these names */ - } -} - - -/* -** function to be used with macro "fasttm": optimized for absence of -** tag methods -*/ -const TValue *luaT_gettm (Table *events, TMS event, TString *ename) { - const TValue *tm = luaH_getstr(events, ename); - lua_assert(event <= TM_EQ); - if (ttisnil(tm)) { /* no tag method? */ - events->flags |= cast_byte(1u<<event); /* cache this fact */ - return NULL; - } - else return tm; -} - - -const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, TMS event) { - Table *mt; - switch (ttypenv(o)) { - case LUA_TTABLE: - mt = hvalue(o)->metatable; - break; - case LUA_TUSERDATA: - mt = uvalue(o)->metatable; - break; - default: - mt = G(L)->mt[ttypenv(o)]; - } - return (mt ? luaH_getstr(mt, G(L)->tmname[event]) : luaO_nilobject); -} - diff --git a/Build/source/libs/lua52/lua52-src/src/ltm.h b/Build/source/libs/lua52/lua52-src/src/ltm.h deleted file mode 100644 index 7f89c841f9c..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/ltm.h +++ /dev/null @@ -1,57 +0,0 @@ -/* -** $Id: ltm.h,v 2.11.1.1 2013/04/12 18:48:47 roberto Exp $ -** Tag methods -** See Copyright Notice in lua.h -*/ - -#ifndef ltm_h -#define ltm_h - - -#include "lobject.h" - - -/* -* WARNING: if you change the order of this enumeration, -* grep "ORDER TM" -*/ -typedef enum { - TM_INDEX, - TM_NEWINDEX, - TM_GC, - TM_MODE, - TM_LEN, - TM_EQ, /* last tag method with `fast' access */ - TM_ADD, - TM_SUB, - TM_MUL, - TM_DIV, - TM_MOD, - TM_POW, - TM_UNM, - TM_LT, - TM_LE, - TM_CONCAT, - TM_CALL, - TM_N /* number of elements in the enum */ -} TMS; - - - -#define gfasttm(g,et,e) ((et) == NULL ? NULL : \ - ((et)->flags & (1u<<(e))) ? NULL : luaT_gettm(et, e, (g)->tmname[e])) - -#define fasttm(l,et,e) gfasttm(G(l), et, e) - -#define ttypename(x) luaT_typenames_[(x) + 1] -#define objtypename(x) ttypename(ttypenv(x)) - -LUAI_DDEC const char *const luaT_typenames_[LUA_TOTALTAGS]; - - -LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename); -LUAI_FUNC const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o, - TMS event); -LUAI_FUNC void luaT_init (lua_State *L); - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lua.c b/Build/source/libs/lua52/lua52-src/src/lua.c deleted file mode 100644 index 4345e554e92..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lua.c +++ /dev/null @@ -1,497 +0,0 @@ -/* -** $Id: lua.c,v 1.206.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua stand-alone interpreter -** See Copyright Notice in lua.h -*/ - - -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define lua_c - -#include "lua.h" - -#include "lauxlib.h" -#include "lualib.h" - - -#if !defined(LUA_PROMPT) -#define LUA_PROMPT "> " -#define LUA_PROMPT2 ">> " -#endif - -#if !defined(LUA_PROGNAME) -#define LUA_PROGNAME "lua" -#endif - -#if !defined(LUA_MAXINPUT) -#define LUA_MAXINPUT 512 -#endif - -#if !defined(LUA_INIT) -#define LUA_INIT "LUA_INIT" -#endif - -#define LUA_INITVERSION \ - LUA_INIT "_" LUA_VERSION_MAJOR "_" LUA_VERSION_MINOR - - -/* -** lua_stdin_is_tty detects whether the standard input is a 'tty' (that -** is, whether we're running lua interactively). -*/ -#if defined(LUA_USE_ISATTY) -#include <unistd.h> -#define lua_stdin_is_tty() isatty(0) -#elif defined(LUA_WIN) -#include <io.h> -#include <stdio.h> -#define lua_stdin_is_tty() _isatty(_fileno(stdin)) -#else -#define lua_stdin_is_tty() 1 /* assume stdin is a tty */ -#endif - - -/* -** lua_readline defines how to show a prompt and then read a line from -** the standard input. -** lua_saveline defines how to "save" a read line in a "history". -** lua_freeline defines how to free a line read by lua_readline. -*/ -#if defined(LUA_USE_READLINE) - -#include <stdio.h> -#include <readline/readline.h> -#include <readline/history.h> -#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL) -#define lua_saveline(L,idx) \ - if (lua_rawlen(L,idx) > 0) /* non-empty line? */ \ - add_history(lua_tostring(L, idx)); /* add it to history */ -#define lua_freeline(L,b) ((void)L, free(b)) - -#elif !defined(lua_readline) - -#define lua_readline(L,b,p) \ - ((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \ - fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */ -#define lua_saveline(L,idx) { (void)L; (void)idx; } -#define lua_freeline(L,b) { (void)L; (void)b; } - -#endif - - - - -static lua_State *globalL = NULL; - -static const char *progname = LUA_PROGNAME; - - - -static void lstop (lua_State *L, lua_Debug *ar) { - (void)ar; /* unused arg. */ - lua_sethook(L, NULL, 0, 0); - luaL_error(L, "interrupted!"); -} - - -static void laction (int i) { - signal(i, SIG_DFL); /* if another SIGINT happens before lstop, - terminate process (default action) */ - lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1); -} - - -static void print_usage (const char *badoption) { - luai_writestringerror("%s: ", progname); - if (badoption[1] == 'e' || badoption[1] == 'l') - luai_writestringerror("'%s' needs argument\n", badoption); - else - luai_writestringerror("unrecognized option '%s'\n", badoption); - luai_writestringerror( - "usage: %s [options] [script [args]]\n" - "Available options are:\n" - " -e stat execute string " LUA_QL("stat") "\n" - " -i enter interactive mode after executing " LUA_QL("script") "\n" - " -l name require library " LUA_QL("name") "\n" - " -v show version information\n" - " -E ignore environment variables\n" - " -- stop handling options\n" - " - stop handling options and execute stdin\n" - , - progname); -} - - -static void l_message (const char *pname, const char *msg) { - if (pname) luai_writestringerror("%s: ", pname); - luai_writestringerror("%s\n", msg); -} - - -static int report (lua_State *L, int status) { - if (status != LUA_OK && !lua_isnil(L, -1)) { - const char *msg = lua_tostring(L, -1); - if (msg == NULL) msg = "(error object is not a string)"; - l_message(progname, msg); - lua_pop(L, 1); - /* force a complete garbage collection in case of errors */ - lua_gc(L, LUA_GCCOLLECT, 0); - } - return status; -} - - -/* the next function is called unprotected, so it must avoid errors */ -static void finalreport (lua_State *L, int status) { - if (status != LUA_OK) { - const char *msg = (lua_type(L, -1) == LUA_TSTRING) ? lua_tostring(L, -1) - : NULL; - if (msg == NULL) msg = "(error object is not a string)"; - l_message(progname, msg); - lua_pop(L, 1); - } -} - - -static int traceback (lua_State *L) { - const char *msg = lua_tostring(L, 1); - if (msg) - luaL_traceback(L, L, msg, 1); - else if (!lua_isnoneornil(L, 1)) { /* is there an error object? */ - if (!luaL_callmeta(L, 1, "__tostring")) /* try its 'tostring' metamethod */ - lua_pushliteral(L, "(no error message)"); - } - return 1; -} - - -static int docall (lua_State *L, int narg, int nres) { - int status; - int base = lua_gettop(L) - narg; /* function index */ - lua_pushcfunction(L, traceback); /* push traceback function */ - lua_insert(L, base); /* put it under chunk and args */ - globalL = L; /* to be available to 'laction' */ - signal(SIGINT, laction); - status = lua_pcall(L, narg, nres, base); - signal(SIGINT, SIG_DFL); - lua_remove(L, base); /* remove traceback function */ - return status; -} - - -static void print_version (void) { - luai_writestring(LUA_COPYRIGHT, strlen(LUA_COPYRIGHT)); - luai_writeline(); -} - - -static int getargs (lua_State *L, char **argv, int n) { - int narg; - int i; - int argc = 0; - while (argv[argc]) argc++; /* count total number of arguments */ - narg = argc - (n + 1); /* number of arguments to the script */ - luaL_checkstack(L, narg + 3, "too many arguments to script"); - for (i=n+1; i < argc; i++) - lua_pushstring(L, argv[i]); - lua_createtable(L, narg, n + 1); - for (i=0; i < argc; i++) { - lua_pushstring(L, argv[i]); - lua_rawseti(L, -2, i - n); - } - return narg; -} - - -static int dofile (lua_State *L, const char *name) { - int status = luaL_loadfile(L, name); - if (status == LUA_OK) status = docall(L, 0, 0); - return report(L, status); -} - - -static int dostring (lua_State *L, const char *s, const char *name) { - int status = luaL_loadbuffer(L, s, strlen(s), name); - if (status == LUA_OK) status = docall(L, 0, 0); - return report(L, status); -} - - -static int dolibrary (lua_State *L, const char *name) { - int status; - lua_getglobal(L, "require"); - lua_pushstring(L, name); - status = docall(L, 1, 1); /* call 'require(name)' */ - if (status == LUA_OK) - lua_setglobal(L, name); /* global[name] = require return */ - return report(L, status); -} - - -static const char *get_prompt (lua_State *L, int firstline) { - const char *p; - lua_getglobal(L, firstline ? "_PROMPT" : "_PROMPT2"); - p = lua_tostring(L, -1); - if (p == NULL) p = (firstline ? LUA_PROMPT : LUA_PROMPT2); - return p; -} - -/* mark in error messages for incomplete statements */ -#define EOFMARK "<eof>" -#define marklen (sizeof(EOFMARK)/sizeof(char) - 1) - -static int incomplete (lua_State *L, int status) { - if (status == LUA_ERRSYNTAX) { - size_t lmsg; - const char *msg = lua_tolstring(L, -1, &lmsg); - if (lmsg >= marklen && strcmp(msg + lmsg - marklen, EOFMARK) == 0) { - lua_pop(L, 1); - return 1; - } - } - return 0; /* else... */ -} - - -static int pushline (lua_State *L, int firstline) { - char buffer[LUA_MAXINPUT]; - char *b = buffer; - size_t l; - const char *prmt = get_prompt(L, firstline); - int readstatus = lua_readline(L, b, prmt); - lua_pop(L, 1); /* remove result from 'get_prompt' */ - if (readstatus == 0) - return 0; /* no input */ - l = strlen(b); - if (l > 0 && b[l-1] == '\n') /* line ends with newline? */ - b[l-1] = '\0'; /* remove it */ - if (firstline && b[0] == '=') /* first line starts with `=' ? */ - lua_pushfstring(L, "return %s", b+1); /* change it to `return' */ - else - lua_pushstring(L, b); - lua_freeline(L, b); - return 1; -} - - -static int loadline (lua_State *L) { - int status; - lua_settop(L, 0); - if (!pushline(L, 1)) - return -1; /* no input */ - for (;;) { /* repeat until gets a complete line */ - size_t l; - const char *line = lua_tolstring(L, 1, &l); - status = luaL_loadbuffer(L, line, l, "=stdin"); - if (!incomplete(L, status)) break; /* cannot try to add lines? */ - if (!pushline(L, 0)) /* no more input? */ - return -1; - lua_pushliteral(L, "\n"); /* add a new line... */ - lua_insert(L, -2); /* ...between the two lines */ - lua_concat(L, 3); /* join them */ - } - lua_saveline(L, 1); - lua_remove(L, 1); /* remove line */ - return status; -} - - -static void dotty (lua_State *L) { - int status; - const char *oldprogname = progname; - progname = NULL; - while ((status = loadline(L)) != -1) { - if (status == LUA_OK) status = docall(L, 0, LUA_MULTRET); - report(L, status); - if (status == LUA_OK && lua_gettop(L) > 0) { /* any result to print? */ - luaL_checkstack(L, LUA_MINSTACK, "too many results to print"); - lua_getglobal(L, "print"); - lua_insert(L, 1); - if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != LUA_OK) - l_message(progname, lua_pushfstring(L, - "error calling " LUA_QL("print") " (%s)", - lua_tostring(L, -1))); - } - } - lua_settop(L, 0); /* clear stack */ - luai_writeline(); - progname = oldprogname; -} - - -static int handle_script (lua_State *L, char **argv, int n) { - int status; - const char *fname; - int narg = getargs(L, argv, n); /* collect arguments */ - lua_setglobal(L, "arg"); - fname = argv[n]; - if (strcmp(fname, "-") == 0 && strcmp(argv[n-1], "--") != 0) - fname = NULL; /* stdin */ - status = luaL_loadfile(L, fname); - lua_insert(L, -(narg+1)); - if (status == LUA_OK) - status = docall(L, narg, LUA_MULTRET); - else - lua_pop(L, narg); - return report(L, status); -} - - -/* check that argument has no extra characters at the end */ -#define noextrachars(x) {if ((x)[2] != '\0') return -1;} - - -/* indices of various argument indicators in array args */ -#define has_i 0 /* -i */ -#define has_v 1 /* -v */ -#define has_e 2 /* -e */ -#define has_E 3 /* -E */ - -#define num_has 4 /* number of 'has_*' */ - - -static int collectargs (char **argv, int *args) { - int i; - for (i = 1; argv[i] != NULL; i++) { - if (argv[i][0] != '-') /* not an option? */ - return i; - switch (argv[i][1]) { /* option */ - case '-': - noextrachars(argv[i]); - return (argv[i+1] != NULL ? i+1 : 0); - case '\0': - return i; - case 'E': - args[has_E] = 1; - break; - case 'i': - noextrachars(argv[i]); - args[has_i] = 1; /* go through */ - case 'v': - noextrachars(argv[i]); - args[has_v] = 1; - break; - case 'e': - args[has_e] = 1; /* go through */ - case 'l': /* both options need an argument */ - if (argv[i][2] == '\0') { /* no concatenated argument? */ - i++; /* try next 'argv' */ - if (argv[i] == NULL || argv[i][0] == '-') - return -(i - 1); /* no next argument or it is another option */ - } - break; - default: /* invalid option; return its index... */ - return -i; /* ...as a negative value */ - } - } - return 0; -} - - -static int runargs (lua_State *L, char **argv, int n) { - int i; - for (i = 1; i < n; i++) { - lua_assert(argv[i][0] == '-'); - switch (argv[i][1]) { /* option */ - case 'e': { - const char *chunk = argv[i] + 2; - if (*chunk == '\0') chunk = argv[++i]; - lua_assert(chunk != NULL); - if (dostring(L, chunk, "=(command line)") != LUA_OK) - return 0; - break; - } - case 'l': { - const char *filename = argv[i] + 2; - if (*filename == '\0') filename = argv[++i]; - lua_assert(filename != NULL); - if (dolibrary(L, filename) != LUA_OK) - return 0; /* stop if file fails */ - break; - } - default: break; - } - } - return 1; -} - - -static int handle_luainit (lua_State *L) { - const char *name = "=" LUA_INITVERSION; - const char *init = getenv(name + 1); - if (init == NULL) { - name = "=" LUA_INIT; - init = getenv(name + 1); /* try alternative name */ - } - if (init == NULL) return LUA_OK; - else if (init[0] == '@') - return dofile(L, init+1); - else - return dostring(L, init, name); -} - - -static int pmain (lua_State *L) { - int argc = (int)lua_tointeger(L, 1); - char **argv = (char **)lua_touserdata(L, 2); - int script; - int args[num_has]; - args[has_i] = args[has_v] = args[has_e] = args[has_E] = 0; - if (argv[0] && argv[0][0]) progname = argv[0]; - script = collectargs(argv, args); - if (script < 0) { /* invalid arg? */ - print_usage(argv[-script]); - return 0; - } - if (args[has_v]) print_version(); - if (args[has_E]) { /* option '-E'? */ - lua_pushboolean(L, 1); /* signal for libraries to ignore env. vars. */ - lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV"); - } - /* open standard libraries */ - luaL_checkversion(L); - lua_gc(L, LUA_GCSTOP, 0); /* stop collector during initialization */ - luaL_openlibs(L); /* open libraries */ - lua_gc(L, LUA_GCRESTART, 0); - if (!args[has_E] && handle_luainit(L) != LUA_OK) - return 0; /* error running LUA_INIT */ - /* execute arguments -e and -l */ - if (!runargs(L, argv, (script > 0) ? script : argc)) return 0; - /* execute main script (if there is one) */ - if (script && handle_script(L, argv, script) != LUA_OK) return 0; - if (args[has_i]) /* -i option? */ - dotty(L); - else if (script == 0 && !args[has_e] && !args[has_v]) { /* no arguments? */ - if (lua_stdin_is_tty()) { - print_version(); - dotty(L); - } - else dofile(L, NULL); /* executes stdin as a file */ - } - lua_pushboolean(L, 1); /* signal no errors */ - return 1; -} - - -int main (int argc, char **argv) { - int status, result; - lua_State *L = luaL_newstate(); /* create state */ - if (L == NULL) { - l_message(argv[0], "cannot create state: not enough memory"); - return EXIT_FAILURE; - } - /* call 'pmain' in protected mode */ - lua_pushcfunction(L, &pmain); - lua_pushinteger(L, argc); /* 1st argument */ - lua_pushlightuserdata(L, argv); /* 2nd argument */ - status = lua_pcall(L, 2, 1, 0); - result = lua_toboolean(L, -1); /* get result */ - finalreport(L, status); - lua_close(L); - return (result && status == LUA_OK) ? EXIT_SUCCESS : EXIT_FAILURE; -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lua.h b/Build/source/libs/lua52/lua52-src/src/lua.h deleted file mode 100644 index ff4a10861b5..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lua.h +++ /dev/null @@ -1,444 +0,0 @@ -/* -** $Id: lua.h,v 1.285.1.4 2015/02/21 14:04:50 roberto Exp $ -** Lua - A Scripting Language -** Lua.org, PUC-Rio, Brazil (http://www.lua.org) -** See Copyright Notice at the end of this file -*/ - - -#ifndef lua_h -#define lua_h - -#include <stdarg.h> -#include <stddef.h> - - -#include "luaconf.h" - - -#define LUA_VERSION_MAJOR "5" -#define LUA_VERSION_MINOR "2" -#define LUA_VERSION_NUM 502 -#define LUA_VERSION_RELEASE "4" - -#define LUA_VERSION "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR -#define LUA_RELEASE LUA_VERSION "." LUA_VERSION_RELEASE -#define LUA_COPYRIGHT LUA_RELEASE " Copyright (C) 1994-2015 Lua.org, PUC-Rio" -#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo, W. Celes" - - -/* mark for precompiled code ('<esc>Lua') */ -#define LUA_SIGNATURE "\033Lua" - -/* option for multiple returns in 'lua_pcall' and 'lua_call' */ -#define LUA_MULTRET (-1) - - -/* -** pseudo-indices -*/ -#define LUA_REGISTRYINDEX LUAI_FIRSTPSEUDOIDX -#define lua_upvalueindex(i) (LUA_REGISTRYINDEX - (i)) - - -/* thread status */ -#define LUA_OK 0 -#define LUA_YIELD 1 -#define LUA_ERRRUN 2 -#define LUA_ERRSYNTAX 3 -#define LUA_ERRMEM 4 -#define LUA_ERRGCMM 5 -#define LUA_ERRERR 6 - - -typedef struct lua_State lua_State; - -typedef int (*lua_CFunction) (lua_State *L); - - -/* -** functions that read/write blocks when loading/dumping Lua chunks -*/ -typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz); - -typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud); - - -/* -** prototype for memory-allocation functions -*/ -typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize); - - -/* -** basic types -*/ -#define LUA_TNONE (-1) - -#define LUA_TNIL 0 -#define LUA_TBOOLEAN 1 -#define LUA_TLIGHTUSERDATA 2 -#define LUA_TNUMBER 3 -#define LUA_TSTRING 4 -#define LUA_TTABLE 5 -#define LUA_TFUNCTION 6 -#define LUA_TUSERDATA 7 -#define LUA_TTHREAD 8 - -#define LUA_NUMTAGS 9 - - - -/* minimum Lua stack available to a C function */ -#define LUA_MINSTACK 20 - - -/* predefined values in the registry */ -#define LUA_RIDX_MAINTHREAD 1 -#define LUA_RIDX_GLOBALS 2 -#define LUA_RIDX_LAST LUA_RIDX_GLOBALS - - -/* type of numbers in Lua */ -typedef LUA_NUMBER lua_Number; - - -/* type for integer functions */ -typedef LUA_INTEGER lua_Integer; - -/* unsigned integer type */ -typedef LUA_UNSIGNED lua_Unsigned; - - - -/* -** generic extra include file -*/ -#if defined(LUA_USER_H) -#include LUA_USER_H -#endif - - -/* -** RCS ident string -*/ -extern const char lua_ident[]; - - -/* -** state manipulation -*/ -LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud); -LUA_API void (lua_close) (lua_State *L); -LUA_API lua_State *(lua_newthread) (lua_State *L); - -LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf); - - -LUA_API const lua_Number *(lua_version) (lua_State *L); - - -/* -** basic stack manipulation -*/ -LUA_API int (lua_absindex) (lua_State *L, int idx); -LUA_API int (lua_gettop) (lua_State *L); -LUA_API void (lua_settop) (lua_State *L, int idx); -LUA_API void (lua_pushvalue) (lua_State *L, int idx); -LUA_API void (lua_remove) (lua_State *L, int idx); -LUA_API void (lua_insert) (lua_State *L, int idx); -LUA_API void (lua_replace) (lua_State *L, int idx); -LUA_API void (lua_copy) (lua_State *L, int fromidx, int toidx); -LUA_API int (lua_checkstack) (lua_State *L, int sz); - -LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n); - - -/* -** access functions (stack -> C) -*/ - -LUA_API int (lua_isnumber) (lua_State *L, int idx); -LUA_API int (lua_isstring) (lua_State *L, int idx); -LUA_API int (lua_iscfunction) (lua_State *L, int idx); -LUA_API int (lua_isuserdata) (lua_State *L, int idx); -LUA_API int (lua_type) (lua_State *L, int idx); -LUA_API const char *(lua_typename) (lua_State *L, int tp); - -LUA_API lua_Number (lua_tonumberx) (lua_State *L, int idx, int *isnum); -LUA_API lua_Integer (lua_tointegerx) (lua_State *L, int idx, int *isnum); -LUA_API lua_Unsigned (lua_tounsignedx) (lua_State *L, int idx, int *isnum); -LUA_API int (lua_toboolean) (lua_State *L, int idx); -LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len); -LUA_API size_t (lua_rawlen) (lua_State *L, int idx); -LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx); -LUA_API void *(lua_touserdata) (lua_State *L, int idx); -LUA_API lua_State *(lua_tothread) (lua_State *L, int idx); -LUA_API const void *(lua_topointer) (lua_State *L, int idx); - - -/* -** Comparison and arithmetic functions -*/ - -#define LUA_OPADD 0 /* ORDER TM */ -#define LUA_OPSUB 1 -#define LUA_OPMUL 2 -#define LUA_OPDIV 3 -#define LUA_OPMOD 4 -#define LUA_OPPOW 5 -#define LUA_OPUNM 6 - -LUA_API void (lua_arith) (lua_State *L, int op); - -#define LUA_OPEQ 0 -#define LUA_OPLT 1 -#define LUA_OPLE 2 - -LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2); -LUA_API int (lua_compare) (lua_State *L, int idx1, int idx2, int op); - - -/* -** push functions (C -> stack) -*/ -LUA_API void (lua_pushnil) (lua_State *L); -LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n); -LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n); -LUA_API void (lua_pushunsigned) (lua_State *L, lua_Unsigned n); -LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t l); -LUA_API const char *(lua_pushstring) (lua_State *L, const char *s); -LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt, - va_list argp); -LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...); -LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n); -LUA_API void (lua_pushboolean) (lua_State *L, int b); -LUA_API void (lua_pushlightuserdata) (lua_State *L, void *p); -LUA_API int (lua_pushthread) (lua_State *L); - - -/* -** get functions (Lua -> stack) -*/ -LUA_API void (lua_getglobal) (lua_State *L, const char *var); -LUA_API void (lua_gettable) (lua_State *L, int idx); -LUA_API void (lua_getfield) (lua_State *L, int idx, const char *k); -LUA_API void (lua_rawget) (lua_State *L, int idx); -LUA_API void (lua_rawgeti) (lua_State *L, int idx, int n); -LUA_API void (lua_rawgetp) (lua_State *L, int idx, const void *p); -LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec); -LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz); -LUA_API int (lua_getmetatable) (lua_State *L, int objindex); -LUA_API void (lua_getuservalue) (lua_State *L, int idx); - - -/* -** set functions (stack -> Lua) -*/ -LUA_API void (lua_setglobal) (lua_State *L, const char *var); -LUA_API void (lua_settable) (lua_State *L, int idx); -LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k); -LUA_API void (lua_rawset) (lua_State *L, int idx); -LUA_API void (lua_rawseti) (lua_State *L, int idx, int n); -LUA_API void (lua_rawsetp) (lua_State *L, int idx, const void *p); -LUA_API int (lua_setmetatable) (lua_State *L, int objindex); -LUA_API void (lua_setuservalue) (lua_State *L, int idx); - - -/* -** 'load' and 'call' functions (load and run Lua code) -*/ -LUA_API void (lua_callk) (lua_State *L, int nargs, int nresults, int ctx, - lua_CFunction k); -#define lua_call(L,n,r) lua_callk(L, (n), (r), 0, NULL) - -LUA_API int (lua_getctx) (lua_State *L, int *ctx); - -LUA_API int (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc, - int ctx, lua_CFunction k); -#define lua_pcall(L,n,r,f) lua_pcallk(L, (n), (r), (f), 0, NULL) - -LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt, - const char *chunkname, - const char *mode); - -LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data); - - -/* -** coroutine functions -*/ -LUA_API int (lua_yieldk) (lua_State *L, int nresults, int ctx, - lua_CFunction k); -#define lua_yield(L,n) lua_yieldk(L, (n), 0, NULL) -LUA_API int (lua_resume) (lua_State *L, lua_State *from, int narg); -LUA_API int (lua_status) (lua_State *L); - -/* -** garbage-collection function and options -*/ - -#define LUA_GCSTOP 0 -#define LUA_GCRESTART 1 -#define LUA_GCCOLLECT 2 -#define LUA_GCCOUNT 3 -#define LUA_GCCOUNTB 4 -#define LUA_GCSTEP 5 -#define LUA_GCSETPAUSE 6 -#define LUA_GCSETSTEPMUL 7 -#define LUA_GCSETMAJORINC 8 -#define LUA_GCISRUNNING 9 -#define LUA_GCGEN 10 -#define LUA_GCINC 11 - -LUA_API int (lua_gc) (lua_State *L, int what, int data); - - -/* -** miscellaneous functions -*/ - -LUA_API int (lua_error) (lua_State *L); - -LUA_API int (lua_next) (lua_State *L, int idx); - -LUA_API void (lua_concat) (lua_State *L, int n); -LUA_API void (lua_len) (lua_State *L, int idx); - -LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud); -LUA_API void (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud); - - - -/* -** =============================================================== -** some useful macros -** =============================================================== -*/ - -#define lua_tonumber(L,i) lua_tonumberx(L,i,NULL) -#define lua_tointeger(L,i) lua_tointegerx(L,i,NULL) -#define lua_tounsigned(L,i) lua_tounsignedx(L,i,NULL) - -#define lua_pop(L,n) lua_settop(L, -(n)-1) - -#define lua_newtable(L) lua_createtable(L, 0, 0) - -#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n))) - -#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0) - -#define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION) -#define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE) -#define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA) -#define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL) -#define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN) -#define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD) -#define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE) -#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0) - -#define lua_pushliteral(L, s) \ - lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1) - -#define lua_pushglobaltable(L) \ - lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS) - -#define lua_tostring(L,i) lua_tolstring(L, (i), NULL) - - - -/* -** {====================================================================== -** Debug API -** ======================================================================= -*/ - - -/* -** Event codes -*/ -#define LUA_HOOKCALL 0 -#define LUA_HOOKRET 1 -#define LUA_HOOKLINE 2 -#define LUA_HOOKCOUNT 3 -#define LUA_HOOKTAILCALL 4 - - -/* -** Event masks -*/ -#define LUA_MASKCALL (1 << LUA_HOOKCALL) -#define LUA_MASKRET (1 << LUA_HOOKRET) -#define LUA_MASKLINE (1 << LUA_HOOKLINE) -#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT) - -typedef struct lua_Debug lua_Debug; /* activation record */ - - -/* Functions to be called by the debugger in specific events */ -typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar); - - -LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar); -LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar); -LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n); -LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n); -LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n); -LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n); - -LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n); -LUA_API void (lua_upvaluejoin) (lua_State *L, int fidx1, int n1, - int fidx2, int n2); - -LUA_API int (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count); -LUA_API lua_Hook (lua_gethook) (lua_State *L); -LUA_API int (lua_gethookmask) (lua_State *L); -LUA_API int (lua_gethookcount) (lua_State *L); - - -struct lua_Debug { - int event; - const char *name; /* (n) */ - const char *namewhat; /* (n) 'global', 'local', 'field', 'method' */ - const char *what; /* (S) 'Lua', 'C', 'main', 'tail' */ - const char *source; /* (S) */ - int currentline; /* (l) */ - int linedefined; /* (S) */ - int lastlinedefined; /* (S) */ - unsigned char nups; /* (u) number of upvalues */ - unsigned char nparams;/* (u) number of parameters */ - char isvararg; /* (u) */ - char istailcall; /* (t) */ - char short_src[LUA_IDSIZE]; /* (S) */ - /* private part */ - struct CallInfo *i_ci; /* active function */ -}; - -/* }====================================================================== */ - - -/****************************************************************************** -* Copyright (C) 1994-2015 Lua.org, PUC-Rio. -* -* Permission is hereby granted, free of charge, to any person obtaining -* a copy of this software and associated documentation files (the -* "Software"), to deal in the Software without restriction, including -* without limitation the rights to use, copy, modify, merge, publish, -* distribute, sublicense, and/or sell copies of the Software, and to -* permit persons to whom the Software is furnished to do so, subject to -* the following conditions: -* -* The above copyright notice and this permission notice shall be -* included in all copies or substantial portions of the Software. -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -******************************************************************************/ - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lua.hpp b/Build/source/libs/lua52/lua52-src/src/lua.hpp deleted file mode 100644 index ec417f59469..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lua.hpp +++ /dev/null @@ -1,9 +0,0 @@ -// lua.hpp -// Lua header files for C++ -// <<extern "C">> not supplied automatically because Lua also compiles as C++ - -extern "C" { -#include "lua.h" -#include "lualib.h" -#include "lauxlib.h" -} diff --git a/Build/source/libs/lua52/lua52-src/src/luac.c b/Build/source/libs/lua52/lua52-src/src/luac.c deleted file mode 100644 index 7409706ec72..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/luac.c +++ /dev/null @@ -1,432 +0,0 @@ -/* -** $Id: luac.c,v 1.69 2011/11/29 17:46:33 lhf Exp $ -** Lua compiler (saves bytecodes to files; also list bytecodes) -** See Copyright Notice in lua.h -*/ - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define luac_c -#define LUA_CORE - -#include "lua.h" -#include "lauxlib.h" - -#include "lobject.h" -#include "lstate.h" -#include "lundump.h" - -static void PrintFunction(const Proto* f, int full); -#define luaU_print PrintFunction - -#define PROGNAME "luac" /* default program name */ -#define OUTPUT PROGNAME ".out" /* default output file */ - -static int listing=0; /* list bytecodes? */ -static int dumping=1; /* dump bytecodes? */ -static int stripping=0; /* strip debug information? */ -static char Output[]={ OUTPUT }; /* default output file name */ -static const char* output=Output; /* actual output file name */ -static const char* progname=PROGNAME; /* actual program name */ - -static void fatal(const char* message) -{ - fprintf(stderr,"%s: %s\n",progname,message); - exit(EXIT_FAILURE); -} - -static void cannot(const char* what) -{ - fprintf(stderr,"%s: cannot %s %s: %s\n",progname,what,output,strerror(errno)); - exit(EXIT_FAILURE); -} - -static void usage(const char* message) -{ - if (*message=='-') - fprintf(stderr,"%s: unrecognized option " LUA_QS "\n",progname,message); - else - fprintf(stderr,"%s: %s\n",progname,message); - fprintf(stderr, - "usage: %s [options] [filenames]\n" - "Available options are:\n" - " -l list (use -l -l for full listing)\n" - " -o name output to file " LUA_QL("name") " (default is \"%s\")\n" - " -p parse only\n" - " -s strip debug information\n" - " -v show version information\n" - " -- stop handling options\n" - " - stop handling options and process stdin\n" - ,progname,Output); - exit(EXIT_FAILURE); -} - -#define IS(s) (strcmp(argv[i],s)==0) - -static int doargs(int argc, char* argv[]) -{ - int i; - int version=0; - if (argv[0]!=NULL && *argv[0]!=0) progname=argv[0]; - for (i=1; i<argc; i++) - { - if (*argv[i]!='-') /* end of options; keep it */ - break; - else if (IS("--")) /* end of options; skip it */ - { - ++i; - if (version) ++version; - break; - } - else if (IS("-")) /* end of options; use stdin */ - break; - else if (IS("-l")) /* list */ - ++listing; - else if (IS("-o")) /* output file */ - { - output=argv[++i]; - if (output==NULL || *output==0 || (*output=='-' && output[1]!=0)) - usage(LUA_QL("-o") " needs argument"); - if (IS("-")) output=NULL; - } - else if (IS("-p")) /* parse only */ - dumping=0; - else if (IS("-s")) /* strip debug information */ - stripping=1; - else if (IS("-v")) /* show version */ - ++version; - else /* unknown option */ - usage(argv[i]); - } - if (i==argc && (listing || !dumping)) - { - dumping=0; - argv[--i]=Output; - } - if (version) - { - printf("%s\n",LUA_COPYRIGHT); - if (version==argc-1) exit(EXIT_SUCCESS); - } - return i; -} - -#define FUNCTION "(function()end)();" - -static const char* reader(lua_State *L, void *ud, size_t *size) -{ - UNUSED(L); - if ((*(int*)ud)--) - { - *size=sizeof(FUNCTION)-1; - return FUNCTION; - } - else - { - *size=0; - return NULL; - } -} - -#define toproto(L,i) getproto(L->top+(i)) - -static const Proto* combine(lua_State* L, int n) -{ - if (n==1) - return toproto(L,-1); - else - { - Proto* f; - int i=n; - if (lua_load(L,reader,&i,"=(" PROGNAME ")",NULL)!=LUA_OK) fatal(lua_tostring(L,-1)); - f=toproto(L,-1); - for (i=0; i<n; i++) - { - f->p[i]=toproto(L,i-n-1); - if (f->p[i]->sizeupvalues>0) f->p[i]->upvalues[0].instack=0; - } - f->sizelineinfo=0; - return f; - } -} - -static int writer(lua_State* L, const void* p, size_t size, void* u) -{ - UNUSED(L); - return (fwrite(p,size,1,(FILE*)u)!=1) && (size!=0); -} - -static int pmain(lua_State* L) -{ - int argc=(int)lua_tointeger(L,1); - char** argv=(char**)lua_touserdata(L,2); - const Proto* f; - int i; - if (!lua_checkstack(L,argc)) fatal("too many input files"); - for (i=0; i<argc; i++) - { - const char* filename=IS("-") ? NULL : argv[i]; - if (luaL_loadfile(L,filename)!=LUA_OK) fatal(lua_tostring(L,-1)); - } - f=combine(L,argc); - if (listing) luaU_print(f,listing>1); - if (dumping) - { - FILE* D= (output==NULL) ? stdout : fopen(output,"wb"); - if (D==NULL) cannot("open"); - lua_lock(L); - luaU_dump(L,f,writer,D,stripping); - lua_unlock(L); - if (ferror(D)) cannot("write"); - if (fclose(D)) cannot("close"); - } - return 0; -} - -int main(int argc, char* argv[]) -{ - lua_State* L; - int i=doargs(argc,argv); - argc-=i; argv+=i; - if (argc<=0) usage("no input files given"); - L=luaL_newstate(); - if (L==NULL) fatal("cannot create state: not enough memory"); - lua_pushcfunction(L,&pmain); - lua_pushinteger(L,argc); - lua_pushlightuserdata(L,argv); - if (lua_pcall(L,2,0,0)!=LUA_OK) fatal(lua_tostring(L,-1)); - lua_close(L); - return EXIT_SUCCESS; -} - -/* -** $Id: print.c,v 1.69 2013/07/04 01:03:46 lhf Exp $ -** print bytecodes -** See Copyright Notice in lua.h -*/ - -#include <ctype.h> -#include <stdio.h> - -#define luac_c -#define LUA_CORE - -#include "ldebug.h" -#include "lobject.h" -#include "lopcodes.h" - -#define VOID(p) ((const void*)(p)) - -static void PrintString(const TString* ts) -{ - const char* s=getstr(ts); - size_t i,n=ts->tsv.len; - printf("%c",'"'); - for (i=0; i<n; i++) - { - int c=(int)(unsigned char)s[i]; - switch (c) - { - case '"': printf("\\\""); break; - case '\\': printf("\\\\"); break; - case '\a': printf("\\a"); break; - case '\b': printf("\\b"); break; - case '\f': printf("\\f"); break; - case '\n': printf("\\n"); break; - case '\r': printf("\\r"); break; - case '\t': printf("\\t"); break; - case '\v': printf("\\v"); break; - default: if (isprint(c)) - printf("%c",c); - else - printf("\\%03d",c); - } - } - printf("%c",'"'); -} - -static void PrintConstant(const Proto* f, int i) -{ - const TValue* o=&f->k[i]; - switch (ttypenv(o)) - { - case LUA_TNIL: - printf("nil"); - break; - case LUA_TBOOLEAN: - printf(bvalue(o) ? "true" : "false"); - break; - case LUA_TNUMBER: - printf(LUA_NUMBER_FMT,nvalue(o)); - break; - case LUA_TSTRING: - PrintString(rawtsvalue(o)); - break; - default: /* cannot happen */ - printf("? type=%d",ttype(o)); - break; - } -} - -#define UPVALNAME(x) ((f->upvalues[x].name) ? getstr(f->upvalues[x].name) : "-") -#define MYK(x) (-1-(x)) - -static void PrintCode(const Proto* f) -{ - const Instruction* code=f->code; - int pc,n=f->sizecode; - for (pc=0; pc<n; pc++) - { - Instruction i=code[pc]; - OpCode o=GET_OPCODE(i); - int a=GETARG_A(i); - int b=GETARG_B(i); - int c=GETARG_C(i); - int ax=GETARG_Ax(i); - int bx=GETARG_Bx(i); - int sbx=GETARG_sBx(i); - int line=getfuncline(f,pc); - printf("\t%d\t",pc+1); - if (line>0) printf("[%d]\t",line); else printf("[-]\t"); - printf("%-9s\t",luaP_opnames[o]); - switch (getOpMode(o)) - { - case iABC: - printf("%d",a); - if (getBMode(o)!=OpArgN) printf(" %d",ISK(b) ? (MYK(INDEXK(b))) : b); - if (getCMode(o)!=OpArgN) printf(" %d",ISK(c) ? (MYK(INDEXK(c))) : c); - break; - case iABx: - printf("%d",a); - if (getBMode(o)==OpArgK) printf(" %d",MYK(bx)); - if (getBMode(o)==OpArgU) printf(" %d",bx); - break; - case iAsBx: - printf("%d %d",a,sbx); - break; - case iAx: - printf("%d",MYK(ax)); - break; - } - switch (o) - { - case OP_LOADK: - printf("\t; "); PrintConstant(f,bx); - break; - case OP_GETUPVAL: - case OP_SETUPVAL: - printf("\t; %s",UPVALNAME(b)); - break; - case OP_GETTABUP: - printf("\t; %s",UPVALNAME(b)); - if (ISK(c)) { printf(" "); PrintConstant(f,INDEXK(c)); } - break; - case OP_SETTABUP: - printf("\t; %s",UPVALNAME(a)); - if (ISK(b)) { printf(" "); PrintConstant(f,INDEXK(b)); } - if (ISK(c)) { printf(" "); PrintConstant(f,INDEXK(c)); } - break; - case OP_GETTABLE: - case OP_SELF: - if (ISK(c)) { printf("\t; "); PrintConstant(f,INDEXK(c)); } - break; - case OP_SETTABLE: - case OP_ADD: - case OP_SUB: - case OP_MUL: - case OP_DIV: - case OP_POW: - case OP_EQ: - case OP_LT: - case OP_LE: - if (ISK(b) || ISK(c)) - { - printf("\t; "); - if (ISK(b)) PrintConstant(f,INDEXK(b)); else printf("-"); - printf(" "); - if (ISK(c)) PrintConstant(f,INDEXK(c)); else printf("-"); - } - break; - case OP_JMP: - case OP_FORLOOP: - case OP_FORPREP: - case OP_TFORLOOP: - printf("\t; to %d",sbx+pc+2); - break; - case OP_CLOSURE: - printf("\t; %p",VOID(f->p[bx])); - break; - case OP_SETLIST: - if (c==0) printf("\t; %d",(int)code[++pc]); else printf("\t; %d",c); - break; - case OP_EXTRAARG: - printf("\t; "); PrintConstant(f,ax); - break; - default: - break; - } - printf("\n"); - } -} - -#define SS(x) ((x==1)?"":"s") -#define S(x) (int)(x),SS(x) - -static void PrintHeader(const Proto* f) -{ - const char* s=f->source ? getstr(f->source) : "=?"; - if (*s=='@' || *s=='=') - s++; - else if (*s==LUA_SIGNATURE[0]) - s="(bstring)"; - else - s="(string)"; - printf("\n%s <%s:%d,%d> (%d instruction%s at %p)\n", - (f->linedefined==0)?"main":"function",s, - f->linedefined,f->lastlinedefined, - S(f->sizecode),VOID(f)); - printf("%d%s param%s, %d slot%s, %d upvalue%s, ", - (int)(f->numparams),f->is_vararg?"+":"",SS(f->numparams), - S(f->maxstacksize),S(f->sizeupvalues)); - printf("%d local%s, %d constant%s, %d function%s\n", - S(f->sizelocvars),S(f->sizek),S(f->sizep)); -} - -static void PrintDebug(const Proto* f) -{ - int i,n; - n=f->sizek; - printf("constants (%d) for %p:\n",n,VOID(f)); - for (i=0; i<n; i++) - { - printf("\t%d\t",i+1); - PrintConstant(f,i); - printf("\n"); - } - n=f->sizelocvars; - printf("locals (%d) for %p:\n",n,VOID(f)); - for (i=0; i<n; i++) - { - printf("\t%d\t%s\t%d\t%d\n", - i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1); - } - n=f->sizeupvalues; - printf("upvalues (%d) for %p:\n",n,VOID(f)); - for (i=0; i<n; i++) - { - printf("\t%d\t%s\t%d\t%d\n", - i,UPVALNAME(i),f->upvalues[i].instack,f->upvalues[i].idx); - } -} - -static void PrintFunction(const Proto* f, int full) -{ - int i,n=f->sizep; - PrintHeader(f); - PrintCode(f); - if (full) PrintDebug(f); - for (i=0; i<n; i++) PrintFunction(f->p[i],full); -} diff --git a/Build/source/libs/lua52/lua52-src/src/luaconf.h b/Build/source/libs/lua52/lua52-src/src/luaconf.h deleted file mode 100644 index 1b0ff59fa00..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/luaconf.h +++ /dev/null @@ -1,551 +0,0 @@ -/* -** $Id: luaconf.h,v 1.176.1.2 2013/11/21 17:26:16 roberto Exp $ -** Configuration file for Lua -** See Copyright Notice in lua.h -*/ - - -#ifndef lconfig_h -#define lconfig_h - -#include <limits.h> -#include <stddef.h> - - -/* -** ================================================================== -** Search for "@@" to find all configurable definitions. -** =================================================================== -*/ - - -/* -@@ LUA_ANSI controls the use of non-ansi features. -** CHANGE it (define it) if you want Lua to avoid the use of any -** non-ansi feature or library. -*/ -#if !defined(LUA_ANSI) && defined(__STRICT_ANSI__) -#define LUA_ANSI -#endif - - -#if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE) -#define LUA_WIN /* enable goodies for regular Windows platforms */ -#endif - -#if defined(LUA_WIN) -#define LUA_DL_DLL -#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ -#endif - - - -#if defined(LUA_USE_LINUX) -#define LUA_USE_POSIX -#define LUA_USE_DLOPEN /* needs an extra library: -ldl */ -#define LUA_USE_READLINE /* needs some extra libraries */ -#define LUA_USE_STRTODHEX /* assume 'strtod' handles hex formats */ -#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ -#define LUA_USE_LONGLONG /* assume support for long long */ -#endif - -#if defined(LUA_USE_MACOSX) -#define LUA_USE_POSIX -#define LUA_USE_DLOPEN /* does not need -ldl */ -#define LUA_USE_READLINE /* needs an extra library: -lreadline */ -#define LUA_USE_STRTODHEX /* assume 'strtod' handles hex formats */ -#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ -#define LUA_USE_LONGLONG /* assume support for long long */ -#endif - - - -/* -@@ LUA_USE_POSIX includes all functionality listed as X/Open System -@* Interfaces Extension (XSI). -** CHANGE it (define it) if your system is XSI compatible. -*/ -#if defined(LUA_USE_POSIX) -#define LUA_USE_MKSTEMP -#define LUA_USE_ISATTY -#define LUA_USE_POPEN -#define LUA_USE_ULONGJMP -#define LUA_USE_GMTIME_R -#endif - - - -/* -@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for -@* Lua libraries. -@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for -@* C libraries. -** CHANGE them if your machine has a non-conventional directory -** hierarchy or if you want to install your libraries in -** non-conventional directories. -*/ -#if defined(_WIN32) /* { */ -/* -** In Windows, any exclamation mark ('!') in the path is replaced by the -** path of the directory of the executable file of the current process. -*/ -#define LUA_LDIR "!\\lua\\" -#define LUA_CDIR "!\\" -#define LUA_PATH_DEFAULT \ - LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ - LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" ".\\?.lua" -#define LUA_CPATH_DEFAULT \ - LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll;" ".\\?.dll" - -#else /* }{ */ - -#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR "/" -#define LUA_ROOT "/usr/local/" -#define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR -#define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR -#define LUA_PATH_DEFAULT \ - LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ - LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" "./?.lua" -#define LUA_CPATH_DEFAULT \ - LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" -#endif /* } */ - - -/* -@@ LUA_DIRSEP is the directory separator (for submodules). -** CHANGE it if your machine does not use "/" as the directory separator -** and is not Windows. (On Windows Lua automatically uses "\".) -*/ -#if defined(_WIN32) -#define LUA_DIRSEP "\\" -#else -#define LUA_DIRSEP "/" -#endif - - -/* -@@ LUA_ENV is the name of the variable that holds the current -@@ environment, used to access global names. -** CHANGE it if you do not like this name. -*/ -#define LUA_ENV "_ENV" - - -/* -@@ LUA_API is a mark for all core API functions. -@@ LUALIB_API is a mark for all auxiliary library functions. -@@ LUAMOD_API is a mark for all standard library opening functions. -** CHANGE them if you need to define those functions in some special way. -** For instance, if you want to create one Windows DLL with the core and -** the libraries, you may want to use the following definition (define -** LUA_BUILD_AS_DLL to get it). -*/ -#if defined(LUA_BUILD_AS_DLL) /* { */ - -#if defined(LUA_CORE) || defined(LUA_LIB) /* { */ -#define LUA_API __declspec(dllexport) -#else /* }{ */ -#define LUA_API __declspec(dllimport) -#endif /* } */ - -#else /* }{ */ - -#define LUA_API extern - -#endif /* } */ - - -/* more often than not the libs go together with the core */ -#define LUALIB_API LUA_API -#define LUAMOD_API LUALIB_API - - -/* -@@ LUAI_FUNC is a mark for all extern functions that are not to be -@* exported to outside modules. -@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables -@* that are not to be exported to outside modules (LUAI_DDEF for -@* definitions and LUAI_DDEC for declarations). -** CHANGE them if you need to mark them in some special way. Elf/gcc -** (versions 3.2 and later) mark them as "hidden" to optimize access -** when Lua is compiled as a shared library. Not all elf targets support -** this attribute. Unfortunately, gcc does not offer a way to check -** whether the target offers that support, and those without support -** give a warning about it. To avoid these warnings, change to the -** default definition. -*/ -#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ - defined(__ELF__) /* { */ -#define LUAI_FUNC __attribute__((visibility("hidden"))) extern -#define LUAI_DDEC LUAI_FUNC -#define LUAI_DDEF /* empty */ - -#else /* }{ */ -#define LUAI_FUNC extern -#define LUAI_DDEC extern -#define LUAI_DDEF /* empty */ -#endif /* } */ - - - -/* -@@ LUA_QL describes how error messages quote program elements. -** CHANGE it if you want a different appearance. -*/ -#define LUA_QL(x) "'" x "'" -#define LUA_QS LUA_QL("%s") - - -/* -@@ LUA_IDSIZE gives the maximum size for the description of the source -@* of a function in debug information. -** CHANGE it if you want a different size. -*/ -#define LUA_IDSIZE 60 - - -/* -@@ luai_writestring/luai_writeline define how 'print' prints its results. -** They are only used in libraries and the stand-alone program. (The #if -** avoids including 'stdio.h' everywhere.) -*/ -#if defined(LUA_LIB) || defined(lua_c) -#include <stdio.h> -#define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout) -#define luai_writeline() (luai_writestring("\n", 1), fflush(stdout)) -#endif - -/* -@@ luai_writestringerror defines how to print error messages. -** (A format string with one argument is enough for Lua...) -*/ -#define luai_writestringerror(s,p) \ - (fprintf(stderr, (s), (p)), fflush(stderr)) - - -/* -@@ LUAI_MAXSHORTLEN is the maximum length for short strings, that is, -** strings that are internalized. (Cannot be smaller than reserved words -** or tags for metamethods, as these strings must be internalized; -** #("function") = 8, #("__newindex") = 10.) -*/ -#define LUAI_MAXSHORTLEN 40 - - - -/* -** {================================================================== -** Compatibility with previous versions -** =================================================================== -*/ - -/* -@@ LUA_COMPAT_ALL controls all compatibility options. -** You can define it to get all options, or change specific options -** to fit your specific needs. -*/ -#if defined(LUA_COMPAT_ALL) /* { */ - -/* -@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. -** You can replace it with 'table.unpack'. -*/ -#define LUA_COMPAT_UNPACK - -/* -@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. -** You can replace it with 'package.searchers'. -*/ -#define LUA_COMPAT_LOADERS - -/* -@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall. -** You can call your C function directly (with light C functions). -*/ -#define lua_cpcall(L,f,u) \ - (lua_pushcfunction(L, (f)), \ - lua_pushlightuserdata(L,(u)), \ - lua_pcall(L,1,0,0)) - - -/* -@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. -** You can rewrite 'log10(x)' as 'log(x, 10)'. -*/ -#define LUA_COMPAT_LOG10 - -/* -@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base -** library. You can rewrite 'loadstring(s)' as 'load(s)'. -*/ -#define LUA_COMPAT_LOADSTRING - -/* -@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. -*/ -#define LUA_COMPAT_MAXN - -/* -@@ The following macros supply trivial compatibility for some -** changes in the API. The macros themselves document how to -** change your code to avoid using them. -*/ -#define lua_strlen(L,i) lua_rawlen(L, (i)) - -#define lua_objlen(L,i) lua_rawlen(L, (i)) - -#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) -#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) - -/* -@@ LUA_COMPAT_MODULE controls compatibility with previous -** module functions 'module' (Lua) and 'luaL_register' (C). -*/ -#define LUA_COMPAT_MODULE - -#endif /* } */ - -/* }================================================================== */ - - - -/* -@@ LUAI_BITSINT defines the number of bits in an int. -** CHANGE here if Lua cannot automatically detect the number of bits of -** your machine. Probably you do not need to change this. -*/ -/* avoid overflows in comparison */ -#if INT_MAX-20 < 32760 /* { */ -#define LUAI_BITSINT 16 -#elif INT_MAX > 2147483640L /* }{ */ -/* int has at least 32 bits */ -#define LUAI_BITSINT 32 -#else /* }{ */ -#error "you must define LUA_BITSINT with number of bits in an integer" -#endif /* } */ - - -/* -@@ LUA_INT32 is a signed integer with exactly 32 bits. -@@ LUAI_UMEM is an unsigned integer big enough to count the total -@* memory used by Lua. -@@ LUAI_MEM is a signed integer big enough to count the total memory -@* used by Lua. -** CHANGE here if for some weird reason the default definitions are not -** good enough for your machine. Probably you do not need to change -** this. -*/ -#if LUAI_BITSINT >= 32 /* { */ -#define LUA_INT32 int -#define LUAI_UMEM size_t -#define LUAI_MEM ptrdiff_t -#else /* }{ */ -/* 16-bit ints */ -#define LUA_INT32 long -#define LUAI_UMEM unsigned long -#define LUAI_MEM long -#endif /* } */ - - -/* -@@ LUAI_MAXSTACK limits the size of the Lua stack. -** CHANGE it if you need a different limit. This limit is arbitrary; -** its only purpose is to stop Lua from consuming unlimited stack -** space (and to reserve some numbers for pseudo-indices). -*/ -#if LUAI_BITSINT >= 32 -#define LUAI_MAXSTACK 1000000 -#else -#define LUAI_MAXSTACK 15000 -#endif - -/* reserve some space for error handling */ -#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000) - - - - -/* -@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. -** CHANGE it if it uses too much C-stack space. -*/ -#define LUAL_BUFFERSIZE BUFSIZ - - - - -/* -** {================================================================== -@@ LUA_NUMBER is the type of numbers in Lua. -** CHANGE the following definitions only if you want to build Lua -** with a number type different from double. You may also need to -** change lua_number2int & lua_number2integer. -** =================================================================== -*/ - -#define LUA_NUMBER_DOUBLE -#define LUA_NUMBER double - -/* -@@ LUAI_UACNUMBER is the result of an 'usual argument conversion' -@* over a number. -*/ -#define LUAI_UACNUMBER double - - -/* -@@ LUA_NUMBER_SCAN is the format for reading numbers. -@@ LUA_NUMBER_FMT is the format for writing numbers. -@@ lua_number2str converts a number to a string. -@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. -*/ -#define LUA_NUMBER_SCAN "%lf" -#define LUA_NUMBER_FMT "%.14g" -#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) -#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ - - -/* -@@ l_mathop allows the addition of an 'l' or 'f' to all math operations -*/ -#define l_mathop(x) (x) - - -/* -@@ lua_str2number converts a decimal numeric string to a number. -@@ lua_strx2number converts an hexadecimal numeric string to a number. -** In C99, 'strtod' does both conversions. C89, however, has no function -** to convert floating hexadecimal strings to numbers. For these -** systems, you can leave 'lua_strx2number' undefined and Lua will -** provide its own implementation. -*/ -#define lua_str2number(s,p) strtod((s), (p)) - -#if defined(LUA_USE_STRTODHEX) -#define lua_strx2number(s,p) strtod((s), (p)) -#endif - - -/* -@@ The luai_num* macros define the primitive operations over numbers. -*/ - -/* the following operations need the math library */ -#if defined(lobject_c) || defined(lvm_c) -#include <math.h> -#define luai_nummod(L,a,b) ((a) - l_mathop(floor)((a)/(b))*(b)) -#define luai_numpow(L,a,b) (l_mathop(pow)(a,b)) -#endif - -/* these are quite standard operations */ -#if defined(LUA_CORE) -#define luai_numadd(L,a,b) ((a)+(b)) -#define luai_numsub(L,a,b) ((a)-(b)) -#define luai_nummul(L,a,b) ((a)*(b)) -#define luai_numdiv(L,a,b) ((a)/(b)) -#define luai_numunm(L,a) (-(a)) -#define luai_numeq(a,b) ((a)==(b)) -#define luai_numlt(L,a,b) ((a)<(b)) -#define luai_numle(L,a,b) ((a)<=(b)) -#define luai_numisnan(L,a) (!luai_numeq((a), (a))) -#endif - - - -/* -@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. -** CHANGE that if ptrdiff_t is not adequate on your machine. (On most -** machines, ptrdiff_t gives a good choice between int or long.) -*/ -#define LUA_INTEGER ptrdiff_t - -/* -@@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned. -** It must have at least 32 bits. -*/ -#define LUA_UNSIGNED unsigned LUA_INT32 - - - -/* -** Some tricks with doubles -*/ - -#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */ -/* -** The next definitions activate some tricks to speed up the -** conversion from doubles to integer types, mainly to LUA_UNSIGNED. -** -@@ LUA_MSASMTRICK uses Microsoft assembler to avoid clashes with a -** DirectX idiosyncrasy. -** -@@ LUA_IEEE754TRICK uses a trick that should work on any machine -** using IEEE754 with a 32-bit integer type. -** -@@ LUA_IEEELL extends the trick to LUA_INTEGER; should only be -** defined when LUA_INTEGER is a 32-bit integer. -** -@@ LUA_IEEEENDIAN is the endianness of doubles in your machine -** (0 for little endian, 1 for big endian); if not defined, Lua will -** check it dynamically for LUA_IEEE754TRICK (but not for LUA_NANTRICK). -** -@@ LUA_NANTRICK controls the use of a trick to pack all types into -** a single double value, using NaN values to represent non-number -** values. The trick only works on 32-bit machines (ints and pointers -** are 32-bit values) with numbers represented as IEEE 754-2008 doubles -** with conventional endianess (12345678 or 87654321), in CPUs that do -** not produce signaling NaN values (all NaNs are quiet). -*/ - -/* Microsoft compiler on a Pentium (32 bit) ? */ -#if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */ - -#define LUA_MSASMTRICK -#define LUA_IEEEENDIAN 0 -#define LUA_NANTRICK - - -/* pentium 32 bits? */ -#elif defined(__i386__) || defined(__i386) || defined(__X86__) /* }{ */ - -#define LUA_IEEE754TRICK -#define LUA_IEEELL -#define LUA_IEEEENDIAN 0 -#define LUA_NANTRICK - -/* pentium 64 bits? */ -#elif defined(__x86_64) /* }{ */ - -#define LUA_IEEE754TRICK -#define LUA_IEEEENDIAN 0 - -#elif defined(__POWERPC__) || defined(__ppc__) /* }{ */ - -#define LUA_IEEE754TRICK -#define LUA_IEEEENDIAN 1 - -#else /* }{ */ - -/* assume IEEE754 and a 32-bit integer type */ -#define LUA_IEEE754TRICK - -#endif /* } */ - -#endif /* } */ - -/* }================================================================== */ - - - - -/* =================================================================== */ - -/* -** Local configuration. You can use this space to add your redefinitions -** without modifying the main part of the file. -*/ - - - -#endif - diff --git a/Build/source/libs/lua52/lua52-src/src/lualib.h b/Build/source/libs/lua52/lua52-src/src/lualib.h deleted file mode 100644 index da82005c9de..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lualib.h +++ /dev/null @@ -1,55 +0,0 @@ -/* -** $Id: lualib.h,v 1.43.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua standard libraries -** See Copyright Notice in lua.h -*/ - - -#ifndef lualib_h -#define lualib_h - -#include "lua.h" - - - -LUAMOD_API int (luaopen_base) (lua_State *L); - -#define LUA_COLIBNAME "coroutine" -LUAMOD_API int (luaopen_coroutine) (lua_State *L); - -#define LUA_TABLIBNAME "table" -LUAMOD_API int (luaopen_table) (lua_State *L); - -#define LUA_IOLIBNAME "io" -LUAMOD_API int (luaopen_io) (lua_State *L); - -#define LUA_OSLIBNAME "os" -LUAMOD_API int (luaopen_os) (lua_State *L); - -#define LUA_STRLIBNAME "string" -LUAMOD_API int (luaopen_string) (lua_State *L); - -#define LUA_BITLIBNAME "bit32" -LUAMOD_API int (luaopen_bit32) (lua_State *L); - -#define LUA_MATHLIBNAME "math" -LUAMOD_API int (luaopen_math) (lua_State *L); - -#define LUA_DBLIBNAME "debug" -LUAMOD_API int (luaopen_debug) (lua_State *L); - -#define LUA_LOADLIBNAME "package" -LUAMOD_API int (luaopen_package) (lua_State *L); - - -/* open all previous libraries */ -LUALIB_API void (luaL_openlibs) (lua_State *L); - - - -#if !defined(lua_assert) -#define lua_assert(x) ((void)0) -#endif - - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lundump.c b/Build/source/libs/lua52/lua52-src/src/lundump.c deleted file mode 100644 index 4163cb5d3b0..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lundump.c +++ /dev/null @@ -1,258 +0,0 @@ -/* -** $Id: lundump.c,v 2.22.1.1 2013/04/12 18:48:47 roberto Exp $ -** load precompiled Lua chunks -** See Copyright Notice in lua.h -*/ - -#include <string.h> - -#define lundump_c -#define LUA_CORE - -#include "lua.h" - -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lmem.h" -#include "lobject.h" -#include "lstring.h" -#include "lundump.h" -#include "lzio.h" - -typedef struct { - lua_State* L; - ZIO* Z; - Mbuffer* b; - const char* name; -} LoadState; - -static l_noret error(LoadState* S, const char* why) -{ - luaO_pushfstring(S->L,"%s: %s precompiled chunk",S->name,why); - luaD_throw(S->L,LUA_ERRSYNTAX); -} - -#define LoadMem(S,b,n,size) LoadBlock(S,b,(n)*(size)) -#define LoadByte(S) (lu_byte)LoadChar(S) -#define LoadVar(S,x) LoadMem(S,&x,1,sizeof(x)) -#define LoadVector(S,b,n,size) LoadMem(S,b,n,size) - -#if !defined(luai_verifycode) -#define luai_verifycode(L,b,f) /* empty */ -#endif - -static void LoadBlock(LoadState* S, void* b, size_t size) -{ - if (luaZ_read(S->Z,b,size)!=0) error(S,"truncated"); -} - -static int LoadChar(LoadState* S) -{ - char x; - LoadVar(S,x); - return x; -} - -static int LoadInt(LoadState* S) -{ - int x; - LoadVar(S,x); - if (x<0) error(S,"corrupted"); - return x; -} - -static lua_Number LoadNumber(LoadState* S) -{ - lua_Number x; - LoadVar(S,x); - return x; -} - -static TString* LoadString(LoadState* S) -{ - size_t size; - LoadVar(S,size); - if (size==0) - return NULL; - else - { - char* s=luaZ_openspace(S->L,S->b,size); - LoadBlock(S,s,size*sizeof(char)); - return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */ - } -} - -static void LoadCode(LoadState* S, Proto* f) -{ - int n=LoadInt(S); - f->code=luaM_newvector(S->L,n,Instruction); - f->sizecode=n; - LoadVector(S,f->code,n,sizeof(Instruction)); -} - -static void LoadFunction(LoadState* S, Proto* f); - -static void LoadConstants(LoadState* S, Proto* f) -{ - int i,n; - n=LoadInt(S); - f->k=luaM_newvector(S->L,n,TValue); - f->sizek=n; - for (i=0; i<n; i++) setnilvalue(&f->k[i]); - for (i=0; i<n; i++) - { - TValue* o=&f->k[i]; - int t=LoadChar(S); - switch (t) - { - case LUA_TNIL: - setnilvalue(o); - break; - case LUA_TBOOLEAN: - setbvalue(o,LoadChar(S)); - break; - case LUA_TNUMBER: - setnvalue(o,LoadNumber(S)); - break; - case LUA_TSTRING: - setsvalue2n(S->L,o,LoadString(S)); - break; - default: lua_assert(0); - } - } - n=LoadInt(S); - f->p=luaM_newvector(S->L,n,Proto*); - f->sizep=n; - for (i=0; i<n; i++) f->p[i]=NULL; - for (i=0; i<n; i++) - { - f->p[i]=luaF_newproto(S->L); - LoadFunction(S,f->p[i]); - } -} - -static void LoadUpvalues(LoadState* S, Proto* f) -{ - int i,n; - n=LoadInt(S); - f->upvalues=luaM_newvector(S->L,n,Upvaldesc); - f->sizeupvalues=n; - for (i=0; i<n; i++) f->upvalues[i].name=NULL; - for (i=0; i<n; i++) - { - f->upvalues[i].instack=LoadByte(S); - f->upvalues[i].idx=LoadByte(S); - } -} - -static void LoadDebug(LoadState* S, Proto* f) -{ - int i,n; - f->source=LoadString(S); - n=LoadInt(S); - f->lineinfo=luaM_newvector(S->L,n,int); - f->sizelineinfo=n; - LoadVector(S,f->lineinfo,n,sizeof(int)); - n=LoadInt(S); - f->locvars=luaM_newvector(S->L,n,LocVar); - f->sizelocvars=n; - for (i=0; i<n; i++) f->locvars[i].varname=NULL; - for (i=0; i<n; i++) - { - f->locvars[i].varname=LoadString(S); - f->locvars[i].startpc=LoadInt(S); - f->locvars[i].endpc=LoadInt(S); - } - n=LoadInt(S); - for (i=0; i<n; i++) f->upvalues[i].name=LoadString(S); -} - -static void LoadFunction(LoadState* S, Proto* f) -{ - f->linedefined=LoadInt(S); - f->lastlinedefined=LoadInt(S); - f->numparams=LoadByte(S); - f->is_vararg=LoadByte(S); - f->maxstacksize=LoadByte(S); - LoadCode(S,f); - LoadConstants(S,f); - LoadUpvalues(S,f); - LoadDebug(S,f); -} - -/* the code below must be consistent with the code in luaU_header */ -#define N0 LUAC_HEADERSIZE -#define N1 (sizeof(LUA_SIGNATURE)-sizeof(char)) -#define N2 N1+2 -#define N3 N2+6 - -static void LoadHeader(LoadState* S) -{ - lu_byte h[LUAC_HEADERSIZE]; - lu_byte s[LUAC_HEADERSIZE]; - luaU_header(h); - memcpy(s,h,sizeof(char)); /* first char already read */ - LoadBlock(S,s+sizeof(char),LUAC_HEADERSIZE-sizeof(char)); - if (memcmp(h,s,N0)==0) return; - if (memcmp(h,s,N1)!=0) error(S,"not a"); - if (memcmp(h,s,N2)!=0) error(S,"version mismatch in"); - if (memcmp(h,s,N3)!=0) error(S,"incompatible"); else error(S,"corrupted"); -} - -/* -** load precompiled chunk -*/ -Closure* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name) -{ - LoadState S; - Closure* cl; - if (*name=='@' || *name=='=') - S.name=name+1; - else if (*name==LUA_SIGNATURE[0]) - S.name="binary string"; - else - S.name=name; - S.L=L; - S.Z=Z; - S.b=buff; - LoadHeader(&S); - cl=luaF_newLclosure(L,1); - setclLvalue(L,L->top,cl); incr_top(L); - cl->l.p=luaF_newproto(L); - LoadFunction(&S,cl->l.p); - if (cl->l.p->sizeupvalues != 1) - { - Proto* p=cl->l.p; - cl=luaF_newLclosure(L,cl->l.p->sizeupvalues); - cl->l.p=p; - setclLvalue(L,L->top-1,cl); - } - luai_verifycode(L,buff,cl->l.p); - return cl; -} - -#define MYINT(s) (s[0]-'0') -#define VERSION MYINT(LUA_VERSION_MAJOR)*16+MYINT(LUA_VERSION_MINOR) -#define FORMAT 0 /* this is the official format */ - -/* -* make header for precompiled chunks -* if you change the code below be sure to update LoadHeader and FORMAT above -* and LUAC_HEADERSIZE in lundump.h -*/ -void luaU_header (lu_byte* h) -{ - int x=1; - memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-sizeof(char)); - h+=sizeof(LUA_SIGNATURE)-sizeof(char); - *h++=cast_byte(VERSION); - *h++=cast_byte(FORMAT); - *h++=cast_byte(*(char*)&x); /* endianness */ - *h++=cast_byte(sizeof(int)); - *h++=cast_byte(sizeof(size_t)); - *h++=cast_byte(sizeof(Instruction)); - *h++=cast_byte(sizeof(lua_Number)); - *h++=cast_byte(((lua_Number)0.5)==0); /* is lua_Number integral? */ - memcpy(h,LUAC_TAIL,sizeof(LUAC_TAIL)-sizeof(char)); -} diff --git a/Build/source/libs/lua52/lua52-src/src/lundump.h b/Build/source/libs/lua52/lua52-src/src/lundump.h deleted file mode 100644 index ede365a2272..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lundump.h +++ /dev/null @@ -1,28 +0,0 @@ -/* -** $Id: lundump.h,v 1.39.1.1 2013/04/12 18:48:47 roberto Exp $ -** load precompiled Lua chunks -** See Copyright Notice in lua.h -*/ - -#ifndef lundump_h -#define lundump_h - -#include "lobject.h" -#include "lzio.h" - -/* load one chunk; from lundump.c */ -LUAI_FUNC Closure* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name); - -/* make header; from lundump.c */ -LUAI_FUNC void luaU_header (lu_byte* h); - -/* dump one chunk; from ldump.c */ -LUA_API int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip); - -/* data to catch conversion errors */ -#define LUAC_TAIL "\x19\x93\r\n\x1a\n" - -/* size in bytes of header of binary files */ -#define LUAC_HEADERSIZE (sizeof(LUA_SIGNATURE)-sizeof(char)+2+6+sizeof(LUAC_TAIL)-sizeof(char)) - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lvm.c b/Build/source/libs/lua52/lua52-src/src/lvm.c deleted file mode 100644 index 141b9fd19c3..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lvm.c +++ /dev/null @@ -1,867 +0,0 @@ -/* -** $Id: lvm.c,v 2.155.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua virtual machine -** See Copyright Notice in lua.h -*/ - - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define lvm_c -#define LUA_CORE - -#include "lua.h" - -#include "ldebug.h" -#include "ldo.h" -#include "lfunc.h" -#include "lgc.h" -#include "lobject.h" -#include "lopcodes.h" -#include "lstate.h" -#include "lstring.h" -#include "ltable.h" -#include "ltm.h" -#include "lvm.h" - - - -/* limit for table tag-method chains (to avoid loops) */ -#define MAXTAGLOOP 100 - - -const TValue *luaV_tonumber (const TValue *obj, TValue *n) { - lua_Number num; - if (ttisnumber(obj)) return obj; - if (ttisstring(obj) && luaO_str2d(svalue(obj), tsvalue(obj)->len, &num)) { - setnvalue(n, num); - return n; - } - else - return NULL; -} - - -int luaV_tostring (lua_State *L, StkId obj) { - if (!ttisnumber(obj)) - return 0; - else { - char s[LUAI_MAXNUMBER2STR]; - lua_Number n = nvalue(obj); - int l = lua_number2str(s, n); - setsvalue2s(L, obj, luaS_newlstr(L, s, l)); - return 1; - } -} - - -static void traceexec (lua_State *L) { - CallInfo *ci = L->ci; - lu_byte mask = L->hookmask; - int counthook = ((mask & LUA_MASKCOUNT) && L->hookcount == 0); - if (counthook) - resethookcount(L); /* reset count */ - if (ci->callstatus & CIST_HOOKYIELD) { /* called hook last time? */ - ci->callstatus &= ~CIST_HOOKYIELD; /* erase mark */ - return; /* do not call hook again (VM yielded, so it did not move) */ - } - if (counthook) - luaD_hook(L, LUA_HOOKCOUNT, -1); /* call count hook */ - if (mask & LUA_MASKLINE) { - Proto *p = ci_func(ci)->p; - int npc = pcRel(ci->u.l.savedpc, p); - int newline = getfuncline(p, npc); - if (npc == 0 || /* call linehook when enter a new function, */ - ci->u.l.savedpc <= L->oldpc || /* when jump back (loop), or when */ - newline != getfuncline(p, pcRel(L->oldpc, p))) /* enter a new line */ - luaD_hook(L, LUA_HOOKLINE, newline); /* call line hook */ - } - L->oldpc = ci->u.l.savedpc; - if (L->status == LUA_YIELD) { /* did hook yield? */ - if (counthook) - L->hookcount = 1; /* undo decrement to zero */ - ci->u.l.savedpc--; /* undo increment (resume will increment it again) */ - ci->callstatus |= CIST_HOOKYIELD; /* mark that it yielded */ - ci->func = L->top - 1; /* protect stack below results */ - luaD_throw(L, LUA_YIELD); - } -} - - -static void callTM (lua_State *L, const TValue *f, const TValue *p1, - const TValue *p2, TValue *p3, int hasres) { - ptrdiff_t result = savestack(L, p3); - setobj2s(L, L->top++, f); /* push function */ - setobj2s(L, L->top++, p1); /* 1st argument */ - setobj2s(L, L->top++, p2); /* 2nd argument */ - if (!hasres) /* no result? 'p3' is third argument */ - setobj2s(L, L->top++, p3); /* 3rd argument */ - /* metamethod may yield only when called from Lua code */ - luaD_call(L, L->top - (4 - hasres), hasres, isLua(L->ci)); - if (hasres) { /* if has result, move it to its place */ - p3 = restorestack(L, result); - setobjs2s(L, p3, --L->top); - } -} - - -void luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val) { - int loop; - for (loop = 0; loop < MAXTAGLOOP; loop++) { - const TValue *tm; - if (ttistable(t)) { /* `t' is a table? */ - Table *h = hvalue(t); - const TValue *res = luaH_get(h, key); /* do a primitive get */ - if (!ttisnil(res) || /* result is not nil? */ - (tm = fasttm(L, h->metatable, TM_INDEX)) == NULL) { /* or no TM? */ - setobj2s(L, val, res); - return; - } - /* else will try the tag method */ - } - else if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_INDEX))) - luaG_typeerror(L, t, "index"); - if (ttisfunction(tm)) { - callTM(L, tm, t, key, val, 1); - return; - } - t = tm; /* else repeat with 'tm' */ - } - luaG_runerror(L, "loop in gettable"); -} - - -void luaV_settable (lua_State *L, const TValue *t, TValue *key, StkId val) { - int loop; - for (loop = 0; loop < MAXTAGLOOP; loop++) { - const TValue *tm; - if (ttistable(t)) { /* `t' is a table? */ - Table *h = hvalue(t); - TValue *oldval = cast(TValue *, luaH_get(h, key)); - /* if previous value is not nil, there must be a previous entry - in the table; moreover, a metamethod has no relevance */ - if (!ttisnil(oldval) || - /* previous value is nil; must check the metamethod */ - ((tm = fasttm(L, h->metatable, TM_NEWINDEX)) == NULL && - /* no metamethod; is there a previous entry in the table? */ - (oldval != luaO_nilobject || - /* no previous entry; must create one. (The next test is - always true; we only need the assignment.) */ - (oldval = luaH_newkey(L, h, key), 1)))) { - /* no metamethod and (now) there is an entry with given key */ - setobj2t(L, oldval, val); /* assign new value to that entry */ - invalidateTMcache(h); - luaC_barrierback(L, obj2gco(h), val); - return; - } - /* else will try the metamethod */ - } - else /* not a table; check metamethod */ - if (ttisnil(tm = luaT_gettmbyobj(L, t, TM_NEWINDEX))) - luaG_typeerror(L, t, "index"); - /* there is a metamethod */ - if (ttisfunction(tm)) { - callTM(L, tm, t, key, val, 0); - return; - } - t = tm; /* else repeat with 'tm' */ - } - luaG_runerror(L, "loop in settable"); -} - - -static int call_binTM (lua_State *L, const TValue *p1, const TValue *p2, - StkId res, TMS event) { - const TValue *tm = luaT_gettmbyobj(L, p1, event); /* try first operand */ - if (ttisnil(tm)) - tm = luaT_gettmbyobj(L, p2, event); /* try second operand */ - if (ttisnil(tm)) return 0; - callTM(L, tm, p1, p2, res, 1); - return 1; -} - - -static const TValue *get_equalTM (lua_State *L, Table *mt1, Table *mt2, - TMS event) { - const TValue *tm1 = fasttm(L, mt1, event); - const TValue *tm2; - if (tm1 == NULL) return NULL; /* no metamethod */ - if (mt1 == mt2) return tm1; /* same metatables => same metamethods */ - tm2 = fasttm(L, mt2, event); - if (tm2 == NULL) return NULL; /* no metamethod */ - if (luaV_rawequalobj(tm1, tm2)) /* same metamethods? */ - return tm1; - return NULL; -} - - -static int call_orderTM (lua_State *L, const TValue *p1, const TValue *p2, - TMS event) { - if (!call_binTM(L, p1, p2, L->top, event)) - return -1; /* no metamethod */ - else - return !l_isfalse(L->top); -} - - -static int l_strcmp (const TString *ls, const TString *rs) { - const char *l = getstr(ls); - size_t ll = ls->tsv.len; - const char *r = getstr(rs); - size_t lr = rs->tsv.len; - for (;;) { - int temp = strcoll(l, r); - if (temp != 0) return temp; - else { /* strings are equal up to a `\0' */ - size_t len = strlen(l); /* index of first `\0' in both strings */ - if (len == lr) /* r is finished? */ - return (len == ll) ? 0 : 1; - else if (len == ll) /* l is finished? */ - return -1; /* l is smaller than r (because r is not finished) */ - /* both strings longer than `len'; go on comparing (after the `\0') */ - len++; - l += len; ll -= len; r += len; lr -= len; - } - } -} - - -int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) { - int res; - if (ttisnumber(l) && ttisnumber(r)) - return luai_numlt(L, nvalue(l), nvalue(r)); - else if (ttisstring(l) && ttisstring(r)) - return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0; - else if ((res = call_orderTM(L, l, r, TM_LT)) < 0) - luaG_ordererror(L, l, r); - return res; -} - - -int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r) { - int res; - if (ttisnumber(l) && ttisnumber(r)) - return luai_numle(L, nvalue(l), nvalue(r)); - else if (ttisstring(l) && ttisstring(r)) - return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0; - else if ((res = call_orderTM(L, l, r, TM_LE)) >= 0) /* first try `le' */ - return res; - else if ((res = call_orderTM(L, r, l, TM_LT)) < 0) /* else try `lt' */ - luaG_ordererror(L, l, r); - return !res; -} - - -/* -** equality of Lua values. L == NULL means raw equality (no metamethods) -*/ -int luaV_equalobj_ (lua_State *L, const TValue *t1, const TValue *t2) { - const TValue *tm; - lua_assert(ttisequal(t1, t2)); - switch (ttype(t1)) { - case LUA_TNIL: return 1; - case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2)); - case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2); /* true must be 1 !! */ - case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2); - case LUA_TLCF: return fvalue(t1) == fvalue(t2); - case LUA_TSHRSTR: return eqshrstr(rawtsvalue(t1), rawtsvalue(t2)); - case LUA_TLNGSTR: return luaS_eqlngstr(rawtsvalue(t1), rawtsvalue(t2)); - case LUA_TUSERDATA: { - if (uvalue(t1) == uvalue(t2)) return 1; - else if (L == NULL) return 0; - tm = get_equalTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable, TM_EQ); - break; /* will try TM */ - } - case LUA_TTABLE: { - if (hvalue(t1) == hvalue(t2)) return 1; - else if (L == NULL) return 0; - tm = get_equalTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ); - break; /* will try TM */ - } - default: - lua_assert(iscollectable(t1)); - return gcvalue(t1) == gcvalue(t2); - } - if (tm == NULL) return 0; /* no TM? */ - callTM(L, tm, t1, t2, L->top, 1); /* call TM */ - return !l_isfalse(L->top); -} - - -void luaV_concat (lua_State *L, int total) { - lua_assert(total >= 2); - do { - StkId top = L->top; - int n = 2; /* number of elements handled in this pass (at least 2) */ - if (!(ttisstring(top-2) || ttisnumber(top-2)) || !tostring(L, top-1)) { - if (!call_binTM(L, top-2, top-1, top-2, TM_CONCAT)) - luaG_concaterror(L, top-2, top-1); - } - else if (tsvalue(top-1)->len == 0) /* second operand is empty? */ - (void)tostring(L, top - 2); /* result is first operand */ - else if (ttisstring(top-2) && tsvalue(top-2)->len == 0) { - setobjs2s(L, top - 2, top - 1); /* result is second op. */ - } - else { - /* at least two non-empty string values; get as many as possible */ - size_t tl = tsvalue(top-1)->len; - char *buffer; - int i; - /* collect total length */ - for (i = 1; i < total && tostring(L, top-i-1); i++) { - size_t l = tsvalue(top-i-1)->len; - if (l >= (MAX_SIZET/sizeof(char)) - tl) - luaG_runerror(L, "string length overflow"); - tl += l; - } - buffer = luaZ_openspace(L, &G(L)->buff, tl); - tl = 0; - n = i; - do { /* concat all strings */ - size_t l = tsvalue(top-i)->len; - memcpy(buffer+tl, svalue(top-i), l * sizeof(char)); - tl += l; - } while (--i > 0); - setsvalue2s(L, top-n, luaS_newlstr(L, buffer, tl)); - } - total -= n-1; /* got 'n' strings to create 1 new */ - L->top -= n-1; /* popped 'n' strings and pushed one */ - } while (total > 1); /* repeat until only 1 result left */ -} - - -void luaV_objlen (lua_State *L, StkId ra, const TValue *rb) { - const TValue *tm; - switch (ttypenv(rb)) { - case LUA_TTABLE: { - Table *h = hvalue(rb); - tm = fasttm(L, h->metatable, TM_LEN); - if (tm) break; /* metamethod? break switch to call it */ - setnvalue(ra, cast_num(luaH_getn(h))); /* else primitive len */ - return; - } - case LUA_TSTRING: { - setnvalue(ra, cast_num(tsvalue(rb)->len)); - return; - } - default: { /* try metamethod */ - tm = luaT_gettmbyobj(L, rb, TM_LEN); - if (ttisnil(tm)) /* no metamethod? */ - luaG_typeerror(L, rb, "get length of"); - break; - } - } - callTM(L, tm, rb, rb, ra, 1); -} - - -void luaV_arith (lua_State *L, StkId ra, const TValue *rb, - const TValue *rc, TMS op) { - TValue tempb, tempc; - const TValue *b, *c; - if ((b = luaV_tonumber(rb, &tempb)) != NULL && - (c = luaV_tonumber(rc, &tempc)) != NULL) { - lua_Number res = luaO_arith(op - TM_ADD + LUA_OPADD, nvalue(b), nvalue(c)); - setnvalue(ra, res); - } - else if (!call_binTM(L, rb, rc, ra, op)) - luaG_aritherror(L, rb, rc); -} - - -/* -** check whether cached closure in prototype 'p' may be reused, that is, -** whether there is a cached closure with the same upvalues needed by -** new closure to be created. -*/ -static Closure *getcached (Proto *p, UpVal **encup, StkId base) { - Closure *c = p->cache; - if (c != NULL) { /* is there a cached closure? */ - int nup = p->sizeupvalues; - Upvaldesc *uv = p->upvalues; - int i; - for (i = 0; i < nup; i++) { /* check whether it has right upvalues */ - TValue *v = uv[i].instack ? base + uv[i].idx : encup[uv[i].idx]->v; - if (c->l.upvals[i]->v != v) - return NULL; /* wrong upvalue; cannot reuse closure */ - } - } - return c; /* return cached closure (or NULL if no cached closure) */ -} - - -/* -** create a new Lua closure, push it in the stack, and initialize -** its upvalues. Note that the call to 'luaC_barrierproto' must come -** before the assignment to 'p->cache', as the function needs the -** original value of that field. -*/ -static void pushclosure (lua_State *L, Proto *p, UpVal **encup, StkId base, - StkId ra) { - int nup = p->sizeupvalues; - Upvaldesc *uv = p->upvalues; - int i; - Closure *ncl = luaF_newLclosure(L, nup); - ncl->l.p = p; - setclLvalue(L, ra, ncl); /* anchor new closure in stack */ - for (i = 0; i < nup; i++) { /* fill in its upvalues */ - if (uv[i].instack) /* upvalue refers to local variable? */ - ncl->l.upvals[i] = luaF_findupval(L, base + uv[i].idx); - else /* get upvalue from enclosing function */ - ncl->l.upvals[i] = encup[uv[i].idx]; - } - luaC_barrierproto(L, p, ncl); - p->cache = ncl; /* save it on cache for reuse */ -} - - -/* -** finish execution of an opcode interrupted by an yield -*/ -void luaV_finishOp (lua_State *L) { - CallInfo *ci = L->ci; - StkId base = ci->u.l.base; - Instruction inst = *(ci->u.l.savedpc - 1); /* interrupted instruction */ - OpCode op = GET_OPCODE(inst); - switch (op) { /* finish its execution */ - case OP_ADD: case OP_SUB: case OP_MUL: case OP_DIV: - case OP_MOD: case OP_POW: case OP_UNM: case OP_LEN: - case OP_GETTABUP: case OP_GETTABLE: case OP_SELF: { - setobjs2s(L, base + GETARG_A(inst), --L->top); - break; - } - case OP_LE: case OP_LT: case OP_EQ: { - int res = !l_isfalse(L->top - 1); - L->top--; - /* metamethod should not be called when operand is K */ - lua_assert(!ISK(GETARG_B(inst))); - if (op == OP_LE && /* "<=" using "<" instead? */ - ttisnil(luaT_gettmbyobj(L, base + GETARG_B(inst), TM_LE))) - res = !res; /* invert result */ - lua_assert(GET_OPCODE(*ci->u.l.savedpc) == OP_JMP); - if (res != GETARG_A(inst)) /* condition failed? */ - ci->u.l.savedpc++; /* skip jump instruction */ - break; - } - case OP_CONCAT: { - StkId top = L->top - 1; /* top when 'call_binTM' was called */ - int b = GETARG_B(inst); /* first element to concatenate */ - int total = cast_int(top - 1 - (base + b)); /* yet to concatenate */ - setobj2s(L, top - 2, top); /* put TM result in proper position */ - if (total > 1) { /* are there elements to concat? */ - L->top = top - 1; /* top is one after last element (at top-2) */ - luaV_concat(L, total); /* concat them (may yield again) */ - } - /* move final result to final position */ - setobj2s(L, ci->u.l.base + GETARG_A(inst), L->top - 1); - L->top = ci->top; /* restore top */ - break; - } - case OP_TFORCALL: { - lua_assert(GET_OPCODE(*ci->u.l.savedpc) == OP_TFORLOOP); - L->top = ci->top; /* correct top */ - break; - } - case OP_CALL: { - if (GETARG_C(inst) - 1 >= 0) /* nresults >= 0? */ - L->top = ci->top; /* adjust results */ - break; - } - case OP_TAILCALL: case OP_SETTABUP: case OP_SETTABLE: - break; - default: lua_assert(0); - } -} - - - -/* -** some macros for common tasks in `luaV_execute' -*/ - -#if !defined luai_runtimecheck -#define luai_runtimecheck(L, c) /* void */ -#endif - - -#define RA(i) (base+GETARG_A(i)) -/* to be used after possible stack reallocation */ -#define RB(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgR, base+GETARG_B(i)) -#define RC(i) check_exp(getCMode(GET_OPCODE(i)) == OpArgR, base+GETARG_C(i)) -#define RKB(i) check_exp(getBMode(GET_OPCODE(i)) == OpArgK, \ - ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i)) -#define RKC(i) check_exp(getCMode(GET_OPCODE(i)) == OpArgK, \ - ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i)) -#define KBx(i) \ - (k + (GETARG_Bx(i) != 0 ? GETARG_Bx(i) - 1 : GETARG_Ax(*ci->u.l.savedpc++))) - - -/* execute a jump instruction */ -#define dojump(ci,i,e) \ - { int a = GETARG_A(i); \ - if (a > 0) luaF_close(L, ci->u.l.base + a - 1); \ - ci->u.l.savedpc += GETARG_sBx(i) + e; } - -/* for test instructions, execute the jump instruction that follows it */ -#define donextjump(ci) { i = *ci->u.l.savedpc; dojump(ci, i, 1); } - - -#define Protect(x) { {x;}; base = ci->u.l.base; } - -#define checkGC(L,c) \ - Protect( luaC_condGC(L,{L->top = (c); /* limit of live values */ \ - luaC_step(L); \ - L->top = ci->top;}) /* restore top */ \ - luai_threadyield(L); ) - - -#define arith_op(op,tm) { \ - TValue *rb = RKB(i); \ - TValue *rc = RKC(i); \ - if (ttisnumber(rb) && ttisnumber(rc)) { \ - lua_Number nb = nvalue(rb), nc = nvalue(rc); \ - setnvalue(ra, op(L, nb, nc)); \ - } \ - else { Protect(luaV_arith(L, ra, rb, rc, tm)); } } - - -#define vmdispatch(o) switch(o) -#define vmcase(l,b) case l: {b} break; -#define vmcasenb(l,b) case l: {b} /* nb = no break */ - -void luaV_execute (lua_State *L) { - CallInfo *ci = L->ci; - LClosure *cl; - TValue *k; - StkId base; - newframe: /* reentry point when frame changes (call/return) */ - lua_assert(ci == L->ci); - cl = clLvalue(ci->func); - k = cl->p->k; - base = ci->u.l.base; - /* main loop of interpreter */ - for (;;) { - Instruction i = *(ci->u.l.savedpc++); - StkId ra; - if ((L->hookmask & (LUA_MASKLINE | LUA_MASKCOUNT)) && - (--L->hookcount == 0 || L->hookmask & LUA_MASKLINE)) { - Protect(traceexec(L)); - } - /* WARNING: several calls may realloc the stack and invalidate `ra' */ - ra = RA(i); - lua_assert(base == ci->u.l.base); - lua_assert(base <= L->top && L->top < L->stack + L->stacksize); - vmdispatch (GET_OPCODE(i)) { - vmcase(OP_MOVE, - setobjs2s(L, ra, RB(i)); - ) - vmcase(OP_LOADK, - TValue *rb = k + GETARG_Bx(i); - setobj2s(L, ra, rb); - ) - vmcase(OP_LOADKX, - TValue *rb; - lua_assert(GET_OPCODE(*ci->u.l.savedpc) == OP_EXTRAARG); - rb = k + GETARG_Ax(*ci->u.l.savedpc++); - setobj2s(L, ra, rb); - ) - vmcase(OP_LOADBOOL, - setbvalue(ra, GETARG_B(i)); - if (GETARG_C(i)) ci->u.l.savedpc++; /* skip next instruction (if C) */ - ) - vmcase(OP_LOADNIL, - int b = GETARG_B(i); - do { - setnilvalue(ra++); - } while (b--); - ) - vmcase(OP_GETUPVAL, - int b = GETARG_B(i); - setobj2s(L, ra, cl->upvals[b]->v); - ) - vmcase(OP_GETTABUP, - int b = GETARG_B(i); - Protect(luaV_gettable(L, cl->upvals[b]->v, RKC(i), ra)); - ) - vmcase(OP_GETTABLE, - Protect(luaV_gettable(L, RB(i), RKC(i), ra)); - ) - vmcase(OP_SETTABUP, - int a = GETARG_A(i); - Protect(luaV_settable(L, cl->upvals[a]->v, RKB(i), RKC(i))); - ) - vmcase(OP_SETUPVAL, - UpVal *uv = cl->upvals[GETARG_B(i)]; - setobj(L, uv->v, ra); - luaC_barrier(L, uv, ra); - ) - vmcase(OP_SETTABLE, - Protect(luaV_settable(L, ra, RKB(i), RKC(i))); - ) - vmcase(OP_NEWTABLE, - int b = GETARG_B(i); - int c = GETARG_C(i); - Table *t = luaH_new(L); - sethvalue(L, ra, t); - if (b != 0 || c != 0) - luaH_resize(L, t, luaO_fb2int(b), luaO_fb2int(c)); - checkGC(L, ra + 1); - ) - vmcase(OP_SELF, - StkId rb = RB(i); - setobjs2s(L, ra+1, rb); - Protect(luaV_gettable(L, rb, RKC(i), ra)); - ) - vmcase(OP_ADD, - arith_op(luai_numadd, TM_ADD); - ) - vmcase(OP_SUB, - arith_op(luai_numsub, TM_SUB); - ) - vmcase(OP_MUL, - arith_op(luai_nummul, TM_MUL); - ) - vmcase(OP_DIV, - arith_op(luai_numdiv, TM_DIV); - ) - vmcase(OP_MOD, - arith_op(luai_nummod, TM_MOD); - ) - vmcase(OP_POW, - arith_op(luai_numpow, TM_POW); - ) - vmcase(OP_UNM, - TValue *rb = RB(i); - if (ttisnumber(rb)) { - lua_Number nb = nvalue(rb); - setnvalue(ra, luai_numunm(L, nb)); - } - else { - Protect(luaV_arith(L, ra, rb, rb, TM_UNM)); - } - ) - vmcase(OP_NOT, - TValue *rb = RB(i); - int res = l_isfalse(rb); /* next assignment may change this value */ - setbvalue(ra, res); - ) - vmcase(OP_LEN, - Protect(luaV_objlen(L, ra, RB(i))); - ) - vmcase(OP_CONCAT, - int b = GETARG_B(i); - int c = GETARG_C(i); - StkId rb; - L->top = base + c + 1; /* mark the end of concat operands */ - Protect(luaV_concat(L, c - b + 1)); - ra = RA(i); /* 'luav_concat' may invoke TMs and move the stack */ - rb = b + base; - setobjs2s(L, ra, rb); - checkGC(L, (ra >= rb ? ra + 1 : rb)); - L->top = ci->top; /* restore top */ - ) - vmcase(OP_JMP, - dojump(ci, i, 0); - ) - vmcase(OP_EQ, - TValue *rb = RKB(i); - TValue *rc = RKC(i); - Protect( - if (cast_int(equalobj(L, rb, rc)) != GETARG_A(i)) - ci->u.l.savedpc++; - else - donextjump(ci); - ) - ) - vmcase(OP_LT, - Protect( - if (luaV_lessthan(L, RKB(i), RKC(i)) != GETARG_A(i)) - ci->u.l.savedpc++; - else - donextjump(ci); - ) - ) - vmcase(OP_LE, - Protect( - if (luaV_lessequal(L, RKB(i), RKC(i)) != GETARG_A(i)) - ci->u.l.savedpc++; - else - donextjump(ci); - ) - ) - vmcase(OP_TEST, - if (GETARG_C(i) ? l_isfalse(ra) : !l_isfalse(ra)) - ci->u.l.savedpc++; - else - donextjump(ci); - ) - vmcase(OP_TESTSET, - TValue *rb = RB(i); - if (GETARG_C(i) ? l_isfalse(rb) : !l_isfalse(rb)) - ci->u.l.savedpc++; - else { - setobjs2s(L, ra, rb); - donextjump(ci); - } - ) - vmcase(OP_CALL, - int b = GETARG_B(i); - int nresults = GETARG_C(i) - 1; - if (b != 0) L->top = ra+b; /* else previous instruction set top */ - if (luaD_precall(L, ra, nresults)) { /* C function? */ - if (nresults >= 0) L->top = ci->top; /* adjust results */ - base = ci->u.l.base; - } - else { /* Lua function */ - ci = L->ci; - ci->callstatus |= CIST_REENTRY; - goto newframe; /* restart luaV_execute over new Lua function */ - } - ) - vmcase(OP_TAILCALL, - int b = GETARG_B(i); - if (b != 0) L->top = ra+b; /* else previous instruction set top */ - lua_assert(GETARG_C(i) - 1 == LUA_MULTRET); - if (luaD_precall(L, ra, LUA_MULTRET)) /* C function? */ - base = ci->u.l.base; - else { - /* tail call: put called frame (n) in place of caller one (o) */ - CallInfo *nci = L->ci; /* called frame */ - CallInfo *oci = nci->previous; /* caller frame */ - StkId nfunc = nci->func; /* called function */ - StkId ofunc = oci->func; /* caller function */ - /* last stack slot filled by 'precall' */ - StkId lim = nci->u.l.base + getproto(nfunc)->numparams; - int aux; - /* close all upvalues from previous call */ - if (cl->p->sizep > 0) luaF_close(L, oci->u.l.base); - /* move new frame into old one */ - for (aux = 0; nfunc + aux < lim; aux++) - setobjs2s(L, ofunc + aux, nfunc + aux); - oci->u.l.base = ofunc + (nci->u.l.base - nfunc); /* correct base */ - oci->top = L->top = ofunc + (L->top - nfunc); /* correct top */ - oci->u.l.savedpc = nci->u.l.savedpc; - oci->callstatus |= CIST_TAIL; /* function was tail called */ - ci = L->ci = oci; /* remove new frame */ - lua_assert(L->top == oci->u.l.base + getproto(ofunc)->maxstacksize); - goto newframe; /* restart luaV_execute over new Lua function */ - } - ) - vmcasenb(OP_RETURN, - int b = GETARG_B(i); - if (b != 0) L->top = ra+b-1; - if (cl->p->sizep > 0) luaF_close(L, base); - b = luaD_poscall(L, ra); - if (!(ci->callstatus & CIST_REENTRY)) /* 'ci' still the called one */ - return; /* external invocation: return */ - else { /* invocation via reentry: continue execution */ - ci = L->ci; - if (b) L->top = ci->top; - lua_assert(isLua(ci)); - lua_assert(GET_OPCODE(*((ci)->u.l.savedpc - 1)) == OP_CALL); - goto newframe; /* restart luaV_execute over new Lua function */ - } - ) - vmcase(OP_FORLOOP, - lua_Number step = nvalue(ra+2); - lua_Number idx = luai_numadd(L, nvalue(ra), step); /* increment index */ - lua_Number limit = nvalue(ra+1); - if (luai_numlt(L, 0, step) ? luai_numle(L, idx, limit) - : luai_numle(L, limit, idx)) { - ci->u.l.savedpc += GETARG_sBx(i); /* jump back */ - setnvalue(ra, idx); /* update internal index... */ - setnvalue(ra+3, idx); /* ...and external index */ - } - ) - vmcase(OP_FORPREP, - const TValue *init = ra; - const TValue *plimit = ra+1; - const TValue *pstep = ra+2; - if (!tonumber(init, ra)) - luaG_runerror(L, LUA_QL("for") " initial value must be a number"); - else if (!tonumber(plimit, ra+1)) - luaG_runerror(L, LUA_QL("for") " limit must be a number"); - else if (!tonumber(pstep, ra+2)) - luaG_runerror(L, LUA_QL("for") " step must be a number"); - setnvalue(ra, luai_numsub(L, nvalue(ra), nvalue(pstep))); - ci->u.l.savedpc += GETARG_sBx(i); - ) - vmcasenb(OP_TFORCALL, - StkId cb = ra + 3; /* call base */ - setobjs2s(L, cb+2, ra+2); - setobjs2s(L, cb+1, ra+1); - setobjs2s(L, cb, ra); - L->top = cb + 3; /* func. + 2 args (state and index) */ - Protect(luaD_call(L, cb, GETARG_C(i), 1)); - L->top = ci->top; - i = *(ci->u.l.savedpc++); /* go to next instruction */ - ra = RA(i); - lua_assert(GET_OPCODE(i) == OP_TFORLOOP); - goto l_tforloop; - ) - vmcase(OP_TFORLOOP, - l_tforloop: - if (!ttisnil(ra + 1)) { /* continue loop? */ - setobjs2s(L, ra, ra + 1); /* save control variable */ - ci->u.l.savedpc += GETARG_sBx(i); /* jump back */ - } - ) - vmcase(OP_SETLIST, - int n = GETARG_B(i); - int c = GETARG_C(i); - int last; - Table *h; - if (n == 0) n = cast_int(L->top - ra) - 1; - if (c == 0) { - lua_assert(GET_OPCODE(*ci->u.l.savedpc) == OP_EXTRAARG); - c = GETARG_Ax(*ci->u.l.savedpc++); - } - luai_runtimecheck(L, ttistable(ra)); - h = hvalue(ra); - last = ((c-1)*LFIELDS_PER_FLUSH) + n; - if (last > h->sizearray) /* needs more space? */ - luaH_resizearray(L, h, last); /* pre-allocate it at once */ - for (; n > 0; n--) { - TValue *val = ra+n; - luaH_setint(L, h, last--, val); - luaC_barrierback(L, obj2gco(h), val); - } - L->top = ci->top; /* correct top (in case of previous open call) */ - ) - vmcase(OP_CLOSURE, - Proto *p = cl->p->p[GETARG_Bx(i)]; - Closure *ncl = getcached(p, cl->upvals, base); /* cached closure */ - if (ncl == NULL) /* no match? */ - pushclosure(L, p, cl->upvals, base, ra); /* create a new one */ - else - setclLvalue(L, ra, ncl); /* push cashed closure */ - checkGC(L, ra + 1); - ) - vmcase(OP_VARARG, - int b = GETARG_B(i) - 1; - int j; - int n = cast_int(base - ci->func) - cl->p->numparams - 1; - if (b < 0) { /* B == 0? */ - b = n; /* get all var. arguments */ - Protect(luaD_checkstack(L, n)); - ra = RA(i); /* previous call may change the stack */ - L->top = ra + n; - } - for (j = 0; j < b; j++) { - if (j < n) { - setobjs2s(L, ra + j, base - n + j); - } - else { - setnilvalue(ra + j); - } - } - ) - vmcase(OP_EXTRAARG, - lua_assert(0); - ) - } - } -} - diff --git a/Build/source/libs/lua52/lua52-src/src/lvm.h b/Build/source/libs/lua52/lua52-src/src/lvm.h deleted file mode 100644 index 5380270da63..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lvm.h +++ /dev/null @@ -1,44 +0,0 @@ -/* -** $Id: lvm.h,v 2.18.1.1 2013/04/12 18:48:47 roberto Exp $ -** Lua virtual machine -** See Copyright Notice in lua.h -*/ - -#ifndef lvm_h -#define lvm_h - - -#include "ldo.h" -#include "lobject.h" -#include "ltm.h" - - -#define tostring(L,o) (ttisstring(o) || (luaV_tostring(L, o))) - -#define tonumber(o,n) (ttisnumber(o) || (((o) = luaV_tonumber(o,n)) != NULL)) - -#define equalobj(L,o1,o2) (ttisequal(o1, o2) && luaV_equalobj_(L, o1, o2)) - -#define luaV_rawequalobj(o1,o2) equalobj(NULL,o1,o2) - - -/* not to called directly */ -LUAI_FUNC int luaV_equalobj_ (lua_State *L, const TValue *t1, const TValue *t2); - - -LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r); -LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r); -LUAI_FUNC const TValue *luaV_tonumber (const TValue *obj, TValue *n); -LUAI_FUNC int luaV_tostring (lua_State *L, StkId obj); -LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key, - StkId val); -LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key, - StkId val); -LUAI_FUNC void luaV_finishOp (lua_State *L); -LUAI_FUNC void luaV_execute (lua_State *L); -LUAI_FUNC void luaV_concat (lua_State *L, int total); -LUAI_FUNC void luaV_arith (lua_State *L, StkId ra, const TValue *rb, - const TValue *rc, TMS op); -LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb); - -#endif diff --git a/Build/source/libs/lua52/lua52-src/src/lzio.c b/Build/source/libs/lua52/lua52-src/src/lzio.c deleted file mode 100644 index 20efea98300..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lzio.c +++ /dev/null @@ -1,76 +0,0 @@ -/* -** $Id: lzio.c,v 1.35.1.1 2013/04/12 18:48:47 roberto Exp $ -** Buffered streams -** See Copyright Notice in lua.h -*/ - - -#include <string.h> - -#define lzio_c -#define LUA_CORE - -#include "lua.h" - -#include "llimits.h" -#include "lmem.h" -#include "lstate.h" -#include "lzio.h" - - -int luaZ_fill (ZIO *z) { - size_t size; - lua_State *L = z->L; - const char *buff; - lua_unlock(L); - buff = z->reader(L, z->data, &size); - lua_lock(L); - if (buff == NULL || size == 0) - return EOZ; - z->n = size - 1; /* discount char being returned */ - z->p = buff; - return cast_uchar(*(z->p++)); -} - - -void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, void *data) { - z->L = L; - z->reader = reader; - z->data = data; - z->n = 0; - z->p = NULL; -} - - -/* --------------------------------------------------------------- read --- */ -size_t luaZ_read (ZIO *z, void *b, size_t n) { - while (n) { - size_t m; - if (z->n == 0) { /* no bytes in buffer? */ - if (luaZ_fill(z) == EOZ) /* try to read more */ - return n; /* no more input; return number of missing bytes */ - else { - z->n++; /* luaZ_fill consumed first byte; put it back */ - z->p--; - } - } - m = (n <= z->n) ? n : z->n; /* min. between n and z->n */ - memcpy(b, z->p, m); - z->n -= m; - z->p += m; - b = (char *)b + m; - n -= m; - } - return 0; -} - -/* ------------------------------------------------------------------------ */ -char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n) { - if (n > buff->buffsize) { - if (n < LUA_MINBUFFER) n = LUA_MINBUFFER; - luaZ_resizebuffer(L, buff, n); - } - return buff->buffer; -} - - diff --git a/Build/source/libs/lua52/lua52-src/src/lzio.h b/Build/source/libs/lua52/lua52-src/src/lzio.h deleted file mode 100644 index 441f7479cb1..00000000000 --- a/Build/source/libs/lua52/lua52-src/src/lzio.h +++ /dev/null @@ -1,65 +0,0 @@ -/* -** $Id: lzio.h,v 1.26.1.1 2013/04/12 18:48:47 roberto Exp $ -** Buffered streams -** See Copyright Notice in lua.h -*/ - - -#ifndef lzio_h -#define lzio_h - -#include "lua.h" - -#include "lmem.h" - - -#define EOZ (-1) /* end of stream */ - -typedef struct Zio ZIO; - -#define zgetc(z) (((z)->n--)>0 ? cast_uchar(*(z)->p++) : luaZ_fill(z)) - - -typedef struct Mbuffer { - char *buffer; - size_t n; - size_t buffsize; -} Mbuffer; - -#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0) - -#define luaZ_buffer(buff) ((buff)->buffer) -#define luaZ_sizebuffer(buff) ((buff)->buffsize) -#define luaZ_bufflen(buff) ((buff)->n) - -#define luaZ_resetbuffer(buff) ((buff)->n = 0) - - -#define luaZ_resizebuffer(L, buff, size) \ - (luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \ - (buff)->buffsize = size) - -#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0) - - -LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n); -LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, - void *data); -LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */ - - - -/* --------- Private Part ------------------ */ - -struct Zio { - size_t n; /* bytes still unread */ - const char *p; /* current position in buffer */ - lua_Reader reader; /* reader function */ - void* data; /* additional data */ - lua_State *L; /* Lua state (for reader) */ -}; - - -LUAI_FUNC int luaZ_fill (ZIO *z); - -#endif diff --git a/Build/source/libs/lua52/lua52.test b/Build/source/libs/lua52/lua52.test deleted file mode 100755 index 34d5c4bad42..00000000000 --- a/Build/source/libs/lua52/lua52.test +++ /dev/null @@ -1,7 +0,0 @@ -#! /bin/sh - -# Copyright (C) 2014 Peter Breitenlohner <tex-live@tug.org> -# You may freely use, modify and/or distribute this file. - -./luatest || exit 1 - diff --git a/Build/source/libs/lua52/luaerror.test b/Build/source/libs/lua52/luaerror.test deleted file mode 100755 index 3992b1d4bf8..00000000000 --- a/Build/source/libs/lua52/luaerror.test +++ /dev/null @@ -1,15 +0,0 @@ -#! /bin/sh -vx -# Copyright 2017-2018 Karl Berry <tex-live@tug.org> -# Copyright 2014 Peter Breitenlohner <tex-live@tug.org> -# You may freely use, modify and/or distribute this file. - -LC_ALL=C; export LC_ALL; LANGUAGE=C; export LANGUAGE - -./luatry -e "error('test')" 2>error.tmp && exit 1 - -sed -e 's/lt-luatry/luatry/;s,^.*/luatry,./luatry,' error.tmp >error.out - -diff $srcdir/error.exp error.out || exit 1 - - - diff --git a/Build/source/libs/lua52/luatest.c b/Build/source/libs/lua52/luatest.c deleted file mode 100644 index ae2f3dcbe8e..00000000000 --- a/Build/source/libs/lua52/luatest.c +++ /dev/null @@ -1,15 +0,0 @@ -/* luatest.c: Basic test for liblua52 - * - * Copyright (C) 2014 Peter Breitenlohner <tex-live@tug.org> - * You may freely use, modify and/or distribute this file. - */ - -#include <stdio.h> -#include <lua.h> - -int main (int argc, char **argv) -{ - printf ("%s: Compiled with %s\n", - argv[0], LUA_VERSION); - return 0; -} diff --git a/Build/source/libs/lua52/texlua52.pc.in b/Build/source/libs/lua52/texlua52.pc.in deleted file mode 100644 index 2e91e4f36f5..00000000000 --- a/Build/source/libs/lua52/texlua52.pc.in +++ /dev/null @@ -1,12 +0,0 @@ -prefix=@prefix@ -exec_prefix=@exec_prefix@ -libdir=@libdir@ -includedir=@includedir@ - -Name: Lua for LuaTeX -Description: Lua 5.2, modified for use with LuaTeX -Version: @LUA52VERSION@ -Libs: -L${libdir} -ltexlua52 -Libs.private: @LIBS@ -Cflags: -I${includedir}/texlua52 - diff --git a/Build/source/libs/lua52/version.ac b/Build/source/libs/lua52/version.ac deleted file mode 100644 index 6909c27af33..00000000000 --- a/Build/source/libs/lua52/version.ac +++ /dev/null @@ -1,11 +0,0 @@ -dnl -dnl Copyright (C) 2013-2015 Peter Breitenlohner <tex-live@tug.org> -dnl -dnl This file is free software; the copyright holder -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. -dnl -dnl -------------------------------------------------------- -dnl -dnl m4-include this file to define the current lua52 version -m4_define([lua52_version], [5.2.4]) diff --git a/Build/source/libs/lua53/configure b/Build/source/libs/lua53/configure index 4d2b9d85b62..f9bdca4da6c 100755 --- a/Build/source/libs/lua53/configure +++ b/Build/source/libs/lua53/configure @@ -13322,9 +13322,9 @@ _ACEOF case $host:$ac_cv_sizeof_void_p in #( *-*-mingw*:4) : - kpse_dll_name=texlua53 ;; #( + kpse_dll_name=texlua ;; #( *-*-mingw*:8) : - kpse_dll_name=texlua53 ;; #( + kpse_dll_name=texlua ;; #( *-*-cygwin:4) : kpse_dll_name= ;; #( *-*-cygwin:8) : @@ -13348,9 +13348,9 @@ else fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sqrt" >&5 -$as_echo_n "checking for library containing sqrt... " >&6; } -if ${ac_cv_search_sqrt+:} false; then : +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pow" >&5 +$as_echo_n "checking for library containing pow... " >&6; } +if ${ac_cv_search_pow+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS @@ -13363,11 +13363,11 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext #ifdef __cplusplus extern "C" #endif -char sqrt (); +char pow (); int main () { -return sqrt (); +return pow (); ; return 0; } @@ -13380,25 +13380,25 @@ for ac_lib in '' m; do LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : - ac_cv_search_sqrt=$ac_res + ac_cv_search_pow=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext - if ${ac_cv_search_sqrt+:} false; then : + if ${ac_cv_search_pow+:} false; then : break fi done -if ${ac_cv_search_sqrt+:} false; then : +if ${ac_cv_search_pow+:} false; then : else - ac_cv_search_sqrt=no + ac_cv_search_pow=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sqrt" >&5 -$as_echo "$ac_cv_search_sqrt" >&6; } -ac_res=$ac_cv_search_sqrt +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pow" >&5 +$as_echo "$ac_cv_search_pow" >&6; } +ac_res=$ac_cv_search_pow if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" diff --git a/Build/source/libs/lua53/configure.ac b/Build/source/libs/lua53/configure.ac index 35bf797f79b..b5f9f0532de 100644 --- a/Build/source/libs/lua53/configure.ac +++ b/Build/source/libs/lua53/configure.ac @@ -24,13 +24,13 @@ KPSE_LT_VERSION([lua53]) LT_INIT([win32-dll]) -KPSE_DLL_NAME([texlua53], [texlua53]) +KPSE_DLL_NAME([texlua], [texlua]) AC_CONFIG_HEADERS([config.h])[]dnl unused, to avoid zillions of -D's on command line AM_CONDITIONAL([build], [test "x$enable_build" != xno]) -AC_SEARCH_LIBS([sqrt], [m]) +AC_SEARCH_LIBS([pow], [m]) KPSE_LUA53_DEFINES KPSE_LARGEFILE([LUA53_DEFINES]) diff --git a/Build/source/libs/luajit/LuaJIT-src/src/lj_alloc.c b/Build/source/libs/luajit/LuaJIT-src/src/lj_alloc.c index 95d15d046ad..e482a834669 100644 --- a/Build/source/libs/luajit/LuaJIT-src/src/lj_alloc.c +++ b/Build/source/libs/luajit/LuaJIT-src/src/lj_alloc.c @@ -343,7 +343,7 @@ static void *CALL_MMAP(size_t size) } #endif -#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4 +#if ((defined(__FreeBSD__) && __FreeBSD__ < 10) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4 #include <sys/resource.h> diff --git a/Build/source/libs/luajit/configure b/Build/source/libs/luajit/configure index 56f4d0b75ff..1c0ad48d980 100755 --- a/Build/source/libs/luajit/configure +++ b/Build/source/libs/luajit/configure @@ -13755,9 +13755,9 @@ _ACEOF ac_configure_args="$ac_configure_args HOST_PTR_SIZE='$ac_cv_sizeof_void_p'" -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sqrt" >&5 -$as_echo_n "checking for library containing sqrt... " >&6; } -if ${ac_cv_search_sqrt+:} false; then : +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pow" >&5 +$as_echo_n "checking for library containing pow... " >&6; } +if ${ac_cv_search_pow+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS @@ -13770,11 +13770,11 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext #ifdef __cplusplus extern "C" #endif -char sqrt (); +char pow (); int main () { -return sqrt (); +return pow (); ; return 0; } @@ -13787,25 +13787,25 @@ for ac_lib in '' m; do LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : - ac_cv_search_sqrt=$ac_res + ac_cv_search_pow=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext - if ${ac_cv_search_sqrt+:} false; then : + if ${ac_cv_search_pow+:} false; then : break fi done -if ${ac_cv_search_sqrt+:} false; then : +if ${ac_cv_search_pow+:} false; then : else - ac_cv_search_sqrt=no + ac_cv_search_pow=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sqrt" >&5 -$as_echo "$ac_cv_search_sqrt" >&6; } -ac_res=$ac_cv_search_sqrt +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pow" >&5 +$as_echo "$ac_cv_search_pow" >&6; } +ac_res=$ac_cv_search_pow if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" diff --git a/Build/source/libs/luajit/configure.ac b/Build/source/libs/luajit/configure.ac index 66cccbad459..f3e20d48159 100644 --- a/Build/source/libs/luajit/configure.ac +++ b/Build/source/libs/luajit/configure.ac @@ -33,7 +33,7 @@ KPSE_DLL_NAME([texluajit], [texluajit]) AC_CHECK_SIZEOF([void *]) ac_configure_args="$ac_configure_args HOST_PTR_SIZE='$ac_cv_sizeof_void_p'" -AC_SEARCH_LIBS([sqrt], [m]) +AC_SEARCH_LIBS([pow], [m]) AC_SEARCH_LIBS([dlopen], [dl]) KPSE_LUAJIT_DEFINES diff --git a/Build/source/libs/luajit/native/configure b/Build/source/libs/luajit/native/configure index cd3b9e8099d..7294da4c7a1 100755 --- a/Build/source/libs/luajit/native/configure +++ b/Build/source/libs/luajit/native/configure @@ -5142,8 +5142,11 @@ _ACEOF if test "x$ac_cv_sizeof_void_p" != "x$HOST_PTR_SIZE"; then : HOST_PTR_BITS=`expr 8 \* $HOST_PTR_SIZE` -{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: pointer size mismatch in cross-build; use a ${HOST_PTR_BITS}bit compiler BULDCC." >&5 -$as_echo "$as_me: WARNING: pointer size mismatch in cross-build; use a ${HOST_PTR_BITS}bit compiler BULDCC." >&2;} +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: pointer size mismatch in cross-build; use a ${HOST_PTR_BITS}bit compiler LUAJITCROSSCOMPILER." >&5 +$as_echo "$as_me: WARNING: pointer size mismatch in cross-build; use a ${HOST_PTR_BITS}bit compiler LUAJITCROSSCOMPILER." >&2;} +if test "x$LUAJITCROSSCOMPILER" != x""; then : + CC=$LUAJITCROSSCOMPILER +fi case $HOST_PTR_BITS in #( 32|64) : CC="$CC -m$HOST_PTR_BITS"; { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: trying: $CC" >&5 diff --git a/Build/source/libs/luajit/native/configure.ac b/Build/source/libs/luajit/native/configure.ac index ebb6d324dca..4d7940412e3 100644 --- a/Build/source/libs/luajit/native/configure.ac +++ b/Build/source/libs/luajit/native/configure.ac @@ -21,7 +21,8 @@ AC_PROG_LN_S AC_CHECK_SIZEOF([void *]) AS_IF([test "x$ac_cv_sizeof_void_p" != "x$HOST_PTR_SIZE"], [dnl HOST_PTR_BITS=`expr 8 \* $HOST_PTR_SIZE` -AC_MSG_WARN([pointer size mismatch in cross-build; use a ${HOST_PTR_BITS}bit compiler BULDCC.]) +AC_MSG_WARN([pointer size mismatch in cross-build; use a ${HOST_PTR_BITS}bit compiler LUAJITCROSSCOMPILER.]) +AS_IF([test "x$LUAJITCROSSCOMPILER" != x""],[CC=$LUAJITCROSSCOMPILER], []) AS_CASE([$HOST_PTR_BITS], [32|64], [CC="$CC -m$HOST_PTR_BITS"; AC_MSG_WARN([trying: $CC])])]) diff --git a/Build/source/texk/web2c/luatexdir/ChangeLog b/Build/source/texk/web2c/luatexdir/ChangeLog index 7219983d41f..62d4ab0491f 100644 --- a/Build/source/texk/web2c/luatexdir/ChangeLog +++ b/Build/source/texk/web2c/luatexdir/ChangeLog @@ -1,7 +1,3 @@ -2018-09-18 Nick Roessler <nicholas.e.roessler@gmail.com> - * fonts/writet1.w (t1_check_unusual_charstring): protect against - buffer overflow. - 2018-08-27 Luigi Scarso <luigi.scarso@gmail.com> * dropped dependency from gmp and mpfr diff --git a/Build/source/texk/web2c/luatexdir/NEWS b/Build/source/texk/web2c/luatexdir/NEWS index 5c044e77e18..dfa8fa8c68d 100644 --- a/Build/source/texk/web2c/luatexdir/NEWS +++ b/Build/source/texk/web2c/luatexdir/NEWS @@ -1,4 +1,16 @@ ============================================================== +LuaTeX 1.09 2018-10-23 +============================================================== + +(1) This is a release that fixed some bugs, and the latest +with lua 5.2. + +(2) luaffi is still incomplete, so very likely there will be +a new release 1.09.1 before the next year. + + + +============================================================== LuaTeX 1.08 2018-08-28 ============================================================== diff --git a/Build/source/texk/web2c/luatexdir/am/libluatex.am b/Build/source/texk/web2c/luatexdir/am/libluatex.am index e3678b64b9e..5f7ae526c6c 100644 --- a/Build/source/texk/web2c/luatexdir/am/libluatex.am +++ b/Build/source/texk/web2c/luatexdir/am/libluatex.am @@ -5,24 +5,29 @@ ## liblua52 ## -LUA_INCLUDES = $(LUA52_INCLUDES) $(LUA52_DEFINES) -LUA_LIBS = $(LUA52_LIBS) -LUA_DEPEND = $(LUA52_DEPEND) +#LUA_INCLUDES = $(LUA52_INCLUDES) $(LUA52_DEFINES) +#LUA_LIBS = $(LUA52_LIBS) +#LUA_DEPEND = $(LUA52_DEPEND) ## liblua53 ## -LUA_LUA53_INCLUDES = $(LUA53_INCLUDES) $(LUA53_DEFINES) -LUA_LUA53_LIBS = $(LUA53_LIBS) -LUA_LUA53_DEPEND = $(LUA53_DEPEND) +#LUA_LUA53_INCLUDES = $(LUA53_INCLUDES) $(LUA53_DEFINES) +#LUA_LUA53_LIBS = $(LUA53_LIBS) +#LUA_LUA53_DEPEND = $(LUA53_DEPEND) +LUA_INCLUDES = $(LUA53_INCLUDES) $(LUA53_DEFINES) +LUA_LIBS = $(LUA53_LIBS) +LUA_DEPEND = $(LUA53_DEPEND) + ## libluatex ## -EXTRA_LIBRARIES += libluatex.a liblua53tex.a libluajittex.a +#EXTRA_LIBRARIES += libluatex.a liblua53tex.a libluajittex.a +EXTRA_LIBRARIES += libluatex.a libluajittex.a libluatex_a_DEPENDENCIES = libff.a libluamisc.a -liblua53tex_a_DEPENDENCIES = libff.a liblua53misc.a +#liblua53tex_a_DEPENDENCIES = libff.a liblua53misc.a libluajittex_a_DEPENDENCIES = libff.a libluajitmisc.a libluatex_a_preflags = $(AM_CPPFLAGS) $(ZLIB_INCLUDES) $(LIBPNG_INCLUDES) @@ -35,12 +40,12 @@ libluatex_a_preflags += -DLUA_FF_LIB=1 -I$(srcdir)/luatexdir/luafontloader/fontf libluatex_a_preflags += -DSYNCTEX_ENGINE_H='<synctex-luatex.h>' -I$(srcdir)/synctexdir libluatex_a_CPPFLAGS = $(libluatex_a_preflags) $(LUA_INCLUDES) -liblua53tex_a_CPPFLAGS = $(libluatex_a_preflags) $(LUA_LUA53_INCLUDES) +#liblua53tex_a_CPPFLAGS = $(libluatex_a_preflags) $(LUA_LUA53_INCLUDES) libluajittex_a_CPPFLAGS = $(libluatex_a_preflags) $(LUAJIT_INCLUDES) $(LUAJIT_DEFINES) libluajittex_a_CPPFLAGS += -DLuajitTeX libluatex_a_CXXFLAGS = $(WARNING_CXXFLAGS) -liblua53tex_a_CXXFLAGS = $(WARNING_CXXFLAGS) +#liblua53tex_a_CXXFLAGS = $(WARNING_CXXFLAGS) libluajittex_a_CXXFLAGS = $(WARNING_CXXFLAGS) dist_libluatex_a_SOURCES = \ @@ -50,13 +55,13 @@ dist_libluatex_a_SOURCES = \ nodist_libluatex_a_SOURCES = \ $(dist_libluatex_sources) \ $(nodist_libluatex_sources) -dist_liblua53tex_a_SOURCES = \ - luatexdir/lua/lstrlibext.c \ - luatexdir/lua/helpers.c \ - luatexdir/lua/texluac.c -nodist_liblua53tex_a_SOURCES = \ - $(dist_libluatex_sources) \ - $(nodist_libluatex_sources) +# dist_liblua53tex_a_SOURCES = \ +# luatexdir/lua/lstrlibext.c \ +# luatexdir/lua/helpers.c \ +# luatexdir/lua/texluac.c +# nodist_liblua53tex_a_SOURCES = \ +# $(dist_libluatex_sources) \ +# $(nodist_libluatex_sources) dist_libluajittex_a_SOURCES = \ luatexdir/lua/lauxlib_bridge.h \ luatexdir/lua/lstrlibext.c \ @@ -67,7 +72,7 @@ nodist_libluajittex_a_SOURCES = \ ## mplib "stub" backends are in mplibstuff.c $(libluatex_a_OBJECTS): libff.a libmplibcore.a libluamisc.a -$(liblua53tex_a_OBJECTS): libff.a libmplibcore.a liblua53misc.a +#$(liblua53tex_a_OBJECTS): libff.a libmplibcore.a liblua53misc.a $(libluajittex_a_OBJECTS): libff.a libmplibcore.a libluajitmisc.a @@ -633,7 +638,7 @@ dist_libluatex_sources += \ synctexdir/synctex.c \ synctexdir/synctex.h -dist_liblua53tex_sources = $(dist_libluatex_sources) +#dist_liblua53tex_sources = $(dist_libluatex_sources) EXTRA_DIST += \ $(dist_libluatex_sources) \ diff --git a/Build/source/texk/web2c/luatexdir/am/luaffi.am b/Build/source/texk/web2c/luatexdir/am/luaffi.am index c927b3df7af..260b7da833f 100644 --- a/Build/source/texk/web2c/luatexdir/am/luaffi.am +++ b/Build/source/texk/web2c/luatexdir/am/luaffi.am @@ -12,25 +12,26 @@ ## -EXTRA_LIBRARIES += libluaffi.a liblua53ffi.a +#EXTRA_LIBRARIES += libluaffi.a liblua53ffi.a +EXTRA_LIBRARIES += libluaffi.a #libluaffi_a_DEPENDENCIES = $(ZLIB_DEPEND) $(libluaffi_a_OBJECTS): $(LUA_DEPEND) -$(liblua53ffi_a_OBJECTS): $(LUA_LUA53_DEPEND) +#$(liblua53ffi_a_OBJECTS): $(LUA_LUA53_DEPEND) libluaffi_a_CPPFLAGS = \ -I$(top_srcdir)/luatexdir/luaffi -I$(top_srcdir)/luatexdir/luaffi/dynasm $(LUA_INCLUDES) -liblua53ffi_a_CPPFLAGS = \ - -I$(top_srcdir)/luatexdir/luaffi -I$(top_srcdir)/luatexdir/luaffi/dynasm $(LUA_LUA53_INCLUDES) +#liblua53ffi_a_CPPFLAGS = \ +# -I$(top_srcdir)/luatexdir/luaffi -I$(top_srcdir)/luatexdir/luaffi/dynasm $(LUA_LUA53_INCLUDES) libluaffi_a_CFLAGS = # $(WARNING_CFLAGS) -liblua53ffi_a_CFLAGS = # $(WARNING_CFLAGS) +#liblua53ffi_a_CFLAGS = # $(WARNING_CFLAGS) nodist_libluaffi_a_SOURCES = $(libluaffi_sources) -nodist_liblua53ffi_a_SOURCES = $(libluaffi_sources) +#nodist_liblua53ffi_a_SOURCES = $(libluaffi_sources) libluaffi_sources = \ @@ -44,7 +45,7 @@ libluaffi_sources = \ luatexdir/luaffi/ffi.h \ luatexdir/luaffi/parser.c -liblua53ffi_sources = $(libluaffi_sources) +#liblua53ffi_sources = $(libluaffi_sources) ## Not used ## #EXTRA_DIST diff --git a/Build/source/texk/web2c/luatexdir/am/luamisc.am b/Build/source/texk/web2c/luatexdir/am/luamisc.am index 014b6eb3f0c..9b9915e11b2 100644 --- a/Build/source/texk/web2c/luatexdir/am/luamisc.am +++ b/Build/source/texk/web2c/luatexdir/am/luamisc.am @@ -6,27 +6,28 @@ ## libluamisc (luafilesystem, luamd5, luapeg, luazip, luazlib, ## and slnunicode) -EXTRA_LIBRARIES += libluamisc.a liblua53misc.a libluajitmisc.a +#EXTRA_LIBRARIES += libluamisc.a liblua53misc.a libluajitmisc.a +EXTRA_LIBRARIES += libluamisc.a libluajitmisc.a libluamisc_a_DEPENDENCIES = $(ZZIPLIB_DEPEND) libluasocket.a libluaffi.a libluapplib.a -liblua53misc_a_DEPENDENCIES = $(ZZIPLIB_DEPEND) liblua53socket.a liblua53ffi.a liblua53pplib.a +#liblua53misc_a_DEPENDENCIES = $(ZZIPLIB_DEPEND) liblua53socket.a liblua53ffi.a liblua53pplib.a libluajitmisc_a_DEPENDENCIES = $(ZZIPLIB_DEPEND) libluajitsocket.a libluajitpplib.a $(libluamisc_a_OBJECTS): $(libluamisc_a_DEPENDENCIES) -$(liblua53misc_a_OBJECTS): $(liblua53misc_a_DEPENDENCIES) +#$(liblua53misc_a_OBJECTS): $(liblua53misc_a_DEPENDENCIES) $(libluajitmisc_a_OBJECTS): $(libluajitmisc_a_DEPENDENCIES) libluamisc_a_CPPFLAGS = $(ZLIB_INCLUDES) $(ZZIPLIB_INCLUDES) $(LUA_INCLUDES) -liblua53misc_a_CPPFLAGS = $(ZLIB_INCLUDES) $(ZZIPLIB_INCLUDES) $(LUA_LUA53_INCLUDES) +#liblua53misc_a_CPPFLAGS = $(ZLIB_INCLUDES) $(ZZIPLIB_INCLUDES) $(LUA_LUA53_INCLUDES) libluajitmisc_a_CPPFLAGS = $(ZLIB_INCLUDES) $(ZZIPLIB_INCLUDES) $(LUAJIT_INCLUDES) libluajitmisc_a_CPPFLAGS += -DLuajitTeX -I$(srcdir)/luatexdir libluamisc_a_CFLAGS = # $(WARNING_CFLAGS) -liblua53misc_a_CFLAGS = # $(WARNING_CFLAGS) +#liblua53misc_a_CFLAGS = # $(WARNING_CFLAGS) libluajitmisc_a_CFLAGS = # $(WARNING_CFLAGS) nodist_libluamisc_a_SOURCES = $(libluamisc_sources) -nodist_liblua53misc_a_SOURCES = $(libluamisc_sources) +#nodist_liblua53misc_a_SOURCES = $(libluamisc_sources) nodist_libluajitmisc_a_SOURCES = $(libluamisc_sources) libluamisc_sources = \ diff --git a/Build/source/texk/web2c/luatexdir/am/luapplib.am b/Build/source/texk/web2c/luatexdir/am/luapplib.am index 51306232557..06293da4ddd 100644 --- a/Build/source/texk/web2c/luatexdir/am/luapplib.am +++ b/Build/source/texk/web2c/luatexdir/am/luapplib.am @@ -5,23 +5,23 @@ ## luapplib ## -EXTRA_LIBRARIES += libluapplib.a liblua53pplib.a libluajitpplib.a +#EXTRA_LIBRARIES += libluapplib.a liblua53pplib.a libluajitpplib.a +EXTRA_LIBRARIES += libluapplib.a libluajitpplib.a libluapplib_a_DEPENDENCIES = $(ZLIB_DEPEND) -liblua53pplib_a_DEPENDENCIES = $(ZLIB_DEPEND) +#liblua53pplib_a_DEPENDENCIES = $(ZLIB_DEPEND) libluajitpplib_a_DEPENDENCIES = $(ZLIB_DEPEND) $(libluapplib_a_OBJECTS): $(LUA_DEPEND) -$(liblua53pplib_a_OBJECTS): $(LUA_DEPEND) +#$(liblua53pplib_a_OBJECTS): $(LUA_DEPEND) $(libluajitpplib_a_OBJECTS): $(LUAJIT_DEPEND) -## replace -I../../libs/zlib/include $(ZLIB_INCLUDES) libluapplib_a_CPPFLAGS = \ -I$(top_srcdir)/luatexdir/luapplib -I$(top_srcdir)/luatexdir/luapplib/util $(ZLIB_INCLUDES) $(LUA_INCLUDES) -liblua53pplib_a_CPPFLAGS = \ - -I$(top_srcdir)/luatexdir/luapplib -I$(top_srcdir)/luatexdir/luapplib/util $(ZLIB_INCLUDES) $(LUA_LUA53_INCLUDES) +#liblua53pplib_a_CPPFLAGS = \ +# -I$(top_srcdir)/luatexdir/luapplib -I$(top_srcdir)/luatexdir/luapplib/util $(ZLIB_INCLUDES) $(LUA_LUA53_INCLUDES) libluajitpplib_a_CPPFLAGS = \ -I$(top_srcdir)/luatexdir/luapplib -I$(top_srcdir)/luatexdir/luapplib/util $(ZLIB_INCLUDES) $(LUAJIT_INCLUDES) @@ -30,7 +30,7 @@ libluapplib_a_CFLAGS = # $(WARNING_CFLAGS) libluajitpplib_a_CFLAGS = # $(WARNING_CFLAGS) nodist_libluapplib_a_SOURCES = $(libluapplib_sources) -nodist_liblua53pplib_a_SOURCES = $(libluapplib_sources) +#nodist_liblua53pplib_a_SOURCES = $(libluapplib_sources) nodist_libluajitpplib_a_SOURCES = $(libluapplib_sources) libluapplib_sources = \ @@ -50,8 +50,12 @@ libluapplib_sources = \ luatexdir/luapplib/ppload.h \ luatexdir/luapplib/ppstream.c \ luatexdir/luapplib/ppstream.h \ + luatexdir/luapplib/pptest1.c \ + luatexdir/luapplib/pptest2.c \ + luatexdir/luapplib/pptest3.c \ luatexdir/luapplib/ppxref.c \ luatexdir/luapplib/ppxref.h \ + luatexdir/luapplib/util/utilarm.h \ luatexdir/luapplib/util/utilbasexx.c \ luatexdir/luapplib/util/utilbasexx.h \ luatexdir/luapplib/util/utilcrypt.c \ @@ -76,11 +80,8 @@ libluapplib_sources = \ luatexdir/luapplib/util/utilnumber.h \ luatexdir/luapplib/util/utilplat.h \ luatexdir/luapplib/util/utilsha.c \ - luatexdir/luapplib/util/utilsha.h \ - luatexdir/luapplib/zlib/zconf.h \ - luatexdir/luapplib/zlib/zlib.h + luatexdir/luapplib/util/utilsha.h - -liblua53pplib_sources = $(libluapplib_sources) +#liblua53pplib_sources = $(libluapplib_sources) libluajitpplib_sources = $(libluapplib_sources) diff --git a/Build/source/texk/web2c/luatexdir/am/luasocket.am b/Build/source/texk/web2c/luatexdir/am/luasocket.am index 8f8e1ab44ee..64dd207848a 100644 --- a/Build/source/texk/web2c/luatexdir/am/luasocket.am +++ b/Build/source/texk/web2c/luatexdir/am/luasocket.am @@ -5,21 +5,22 @@ ## luasocket ## -EXTRA_LIBRARIES += libluasocket.a liblua53socket.a libluajitsocket.a +#EXTRA_LIBRARIES += libluasocket.a liblua53socket.a libluajitsocket.a +EXTRA_LIBRARIES += libluasocket.a libluajitsocket.a libluasocket_a_DEPENDENCIES = $(ZLIB_DEPEND) -liblua53socket_a_DEPENDENCIES = $(ZLIB_DEPEND) +#liblua53socket_a_DEPENDENCIES = $(ZLIB_DEPEND) libluajitsocket_a_DEPENDENCIES = $(ZLIB_DEPEND) $(libluasocket_a_OBJECTS): $(LUA_DEPEND) -$(liblua53socket_a_OBJECTS): $(LUA_DEPEND) +#$(liblua53socket_a_OBJECTS): $(LUA_DEPEND) $(libluajitsocket_a_OBJECTS): $(LUAJIT_DEPEND) libluasocket_a_CPPFLAGS = \ -DLUASOCKET_DEBUG -I$(top_srcdir)/luatexdir/luasocket $(LUA_INCLUDES) -liblua53socket_a_CPPFLAGS = \ - -DLUASOCKET_DEBUG -I$(top_srcdir)/luatexdir/luasocket $(LUA_LUA53_INCLUDES) +#liblua53socket_a_CPPFLAGS = \ +# -DLUASOCKET_DEBUG -I$(top_srcdir)/luatexdir/luasocket $(LUA_LUA53_INCLUDES) libluajitsocket_a_CPPFLAGS = \ -DLUASOCKET_DEBUG -I$(top_srcdir)/luatexdir/luasocket $(LUAJIT_INCLUDES) @@ -28,7 +29,7 @@ libluasocket_a_CFLAGS = # $(WARNING_CFLAGS) libluajitsocket_a_CFLAGS = # $(WARNING_CFLAGS) nodist_libluasocket_a_SOURCES = $(libluasocket_sources) -nodist_liblua53socket_a_SOURCES = $(libluasocket_sources) +#nodist_liblua53socket_a_SOURCES = $(libluasocket_sources) nodist_libluajitsocket_a_SOURCES = $(libluasocket_sources) libluasocket_sources = \ diff --git a/Build/source/texk/web2c/luatexdir/am/luatex.am b/Build/source/texk/web2c/luatexdir/am/luatex.am index 2fb4d64f68a..9d289ab00c6 100644 --- a/Build/source/texk/web2c/luatexdir/am/luatex.am +++ b/Build/source/texk/web2c/luatexdir/am/luatex.am @@ -17,16 +17,16 @@ bin_links += luatex$(EXEEXT):texlua luatex$(EXEEXT):texluac endif !WIN32 endif LUATEX -if LUATEX53 -bin_PROGRAMS += luatex53 -if WIN32 -noinst_PROGRAMS += call_luatex53 -install_exe_links += install-luatex53-links -uninstall_exe_links += uninstall-luatex53-links -else !WIN32 -bin_links += luatex53$(EXEEXT):texlua53 -endif !WIN32 -endif LUATEX53 +#if LUATEX53 +#bin_PROGRAMS += luatex53 +#if WIN32 +#noinst_PROGRAMS += call_luatex53 +#install_exe_links += install-luatex53-links +#uninstall_exe_links += uninstall-luatex53-links +#else !WIN32 +#bin_links += luatex53$(EXEEXT):texlua53 +#endif !WIN32 +#endif LUATEX53 if LUAJITTEX bin_PROGRAMS += luajittex @@ -39,7 +39,8 @@ bin_links += luajittex$(EXEEXT):texluajit luajittex$(EXEEXT):texluajitc endif !WIN32 endif LUAJITTEX -EXTRA_PROGRAMS += luatex luatex53 luajittex +#EXTRA_PROGRAMS += luatex luatex53 luajittex +EXTRA_PROGRAMS += luatex luajittex # Force Automake to use CXXLD for linking #nodist_EXTRA_luatex_SOURCES = dummy.cxx @@ -52,16 +53,16 @@ luatex_postflags += -Dextra_version_info=`date +-%Y%m%d%H` luatex_postflags += -I$(srcdir)/synctexdir -DSYNCTEX_ENGINE_H='<synctex-luatex.h>' luatex_CPPFLAGS = $(luatex_preflags) $(LUA_INCLUDES) $(luatex_postflags) -luatex53_CPPFLAGS = $(luatex_preflags) $(LUA_LUA53_INCLUDES) $(luatex_postflags) +#luatex53_CPPFLAGS = $(luatex_preflags) $(LUA_LUA53_INCLUDES) $(luatex_postflags) luajittex_CPPFLAGS = $(luatex_preflags) $(LUAJIT_INCLUDES) $(LUAJIT_DEFINES) $(luatex_postflags) luajittex_CPPFLAGS += -DLuajitTeX luatex_CXXFLAGS = $(WARNING_CXXFLAGS) -luatex53_CXXFLAGS = $(WARNING_CXXFLAGS) +#luatex53_CXXFLAGS = $(WARNING_CXXFLAGS) luajittex_CXXFLAGS = $(WARNING_CXXFLAGS) luatex_LDFLAGS = -export-dynamic -luatex53_LDFLAGS = -export-dynamic +#luatex53_LDFLAGS = -export-dynamic luajittex_LDFLAGS = -export-dynamic $(LUAJIT_LDEXTRA) #luatex_postldadd = libmplibcore.a $(MPFR_LIBS) $(GMP_LIBS) @@ -71,20 +72,20 @@ luatex_postldadd += $(LDADD) libmputil.a libunilib.a libmd5.a $(lua_socketlibs) luatex_LDADD = libluatex.a libff.a libluamisc.a libluasocket.a libluaffi.a libluapplib.a $(LUA_LIBS) $(luatex_postldadd) -luatex53_LDADD = liblua53tex.a libff.a liblua53misc.a liblua53socket.a liblua53ffi.a liblua53pplib.a $(LUA_LUA53_LIBS) $(luatex_postldadd) +#luatex53_LDADD = liblua53tex.a libff.a liblua53misc.a liblua53socket.a liblua53ffi.a liblua53pplib.a $(LUA_LUA53_LIBS) $(luatex_postldadd) luajittex_LDADD = libluajittex.a libff.a libluajitmisc.a libluajitsocket.a libluajitpplib.a $(LUAJIT_LIBS) $(luatex_postldadd) luatex_depend = $(proglib) $(KPATHSEA_DEPEND) $(LIBPNG_DEPEND) libmputil.a libmd5.a luatex_DEPENDENCIES = $(luatex_depend) libluatex.a -luatex53_DEPENDENCIES = $(luatex_depend) liblua53tex.a +#luatex53_DEPENDENCIES = $(luatex_depend) liblua53tex.a luajittex_DEPENDENCIES = $(luatex_depend) libluajittex.a $(luatex_OBJECTS): libluatex.a -$(luatex53_OBJECTS): liblua53tex.a +#$(luatex53_OBJECTS): liblua53tex.a $(luajittex_OBJECTS): libluajittex.a nodist_luatex_SOURCES = $(luatex_sources) -nodist_luatex53_SOURCES = $(luatex_sources) +#nodist_luatex53_SOURCES = $(luatex_sources) nodist_luajittex_SOURCES = $(luatex_sources) @@ -101,9 +102,9 @@ call_luatex_CPPFLAGS = -DEXEPROG=\"luatex.exe\" nodist_call_luatex_SOURCES = callexe.c call_luatex_LDADD = -call_luatex53_CPPFLAGS = -DEXEPROG=\"luatex53.exe\" -nodist_call_luatex53_SOURCES = callexe.c -call_luatex53_LDADD = +#call_luatex53_CPPFLAGS = -DEXEPROG=\"luatex53.exe\" +#nodist_call_luatex53_SOURCES = callexe.c +#call_luatex53_LDADD = call_luajittex_CPPFLAGS = -DEXEPROG=\"luajittex.exe\" nodist_call_luajittex_SOURCES = callexe.c @@ -130,8 +131,8 @@ endif WIN32 # luatex_tests = luatexdir/luatex.test luatexdir/luaimage.test luatexdir/luatex.log luatexdir/luaimage.log: luatex$(EXEEXT) -luatex53_tests = luatexdir/luatex.test luatexdir/luaimage.test -luatexdir/luatex53.log luatexdir/luaimage53.log: luatex53$(EXEEXT) +#luatex53_tests = luatexdir/luatex.test luatexdir/luaimage.test +#luatexdir/luatex53.log luatexdir/luaimage53.log: luatex53$(EXEEXT) luajittex_tests = luatexdir/luajittex.test luatexdir/luajitimage.test @@ -142,9 +143,9 @@ EXTRA_DIST += $(luatex_tests) $(luajittex_tests) if LUATEX TESTS += $(luatex_tests) endif LUATEX -if LUATEX53 -TESTS += $(luatex_tests) -endif LUATEX53 +#if LUATEX53 +#TESTS += $(luatex_tests) +#endif LUATEX53 if LUAJITTEX TESTS += $(luajittex_tests) endif LUAJITTEX diff --git a/Build/source/texk/web2c/luatexdir/font/dofont.c b/Build/source/texk/web2c/luatexdir/font/dofont.c index b23368d834f..107bd8341af 100644 --- a/Build/source/texk/web2c/luatexdir/font/dofont.c +++ b/Build/source/texk/web2c/luatexdir/font/dofont.c @@ -86,8 +86,13 @@ static int do_define_font(int f, const char *cnom, scaled s, int natural_dir) The font name has to fit in the dvi file's single byte storage. There is no need to test area, as we are never using it. + + If we have an error in DVI mode we just abort as the DVI file is unuseable + anyway then. */ - res = 0; + if (get_o_mode() == OMODE_DVI) { + formatted_error("backend","font name too long for DVI: %s",font_name(f)); + } } if (res) { if (font_type(f) != virtual_font_type) { diff --git a/Build/source/texk/web2c/luatexdir/font/luafont.c b/Build/source/texk/web2c/luatexdir/font/luafont.c index e64aaffc15d..7cb03521d4e 100644 --- a/Build/source/texk/web2c/luatexdir/font/luafont.c +++ b/Build/source/texk/web2c/luatexdir/font/luafont.c @@ -381,6 +381,41 @@ static void write_lua_parameters(lua_State * L, int f) lua_rawset(L, -3); } +int font_parameters_to_lua(lua_State * L, int f) +{ + int k; + lua_newtable(L); + for (k = 1; k <= font_params(f); k++) { + switch (k) { + case slant_code: + dump_intfield(L,slant,font_param(f, k)); + break; + case space_code: + dump_intfield(L,space,font_param(f, k)); + break; + case space_stretch_code: + dump_intfield(L,space_stretch,font_param(f, k)); + break; + case space_shrink_code: + dump_intfield(L,space_shrink,font_param(f, k)); + break; + case x_height_code: + dump_intfield(L,x_height,font_param(f, k)); + break; + case quad_code: + dump_intfield(L,quad,font_param(f, k)); + break; + case extra_space_code: + dump_intfield(L,extra_space,font_param(f, k)); + break; + default: + lua_pushinteger(L, font_param(f, k)); + lua_rawseti(L, -2, k); + } + } + return 1; +} + static void write_lua_math_parameters(lua_State * L, int f) { int k; @@ -404,8 +439,6 @@ int font_to_lua(lua_State * L, int f) if (font_cache_id(f) > 0) { /*tex Fetch the table from the registry if it was saved there by |font_from_lua|. */ lua_rawgeti(L, LUA_REGISTRYINDEX, font_cache_id(f)); - /*tex Font dimenensions can be changed from \TEX\ code. */ - write_lua_parameters(L, f); return 1; } lua_newtable(L); diff --git a/Build/source/texk/web2c/luatexdir/font/luatexfont.h b/Build/source/texk/web2c/luatexdir/font/luatexfont.h index 7016b88729c..cd199417313 100644 --- a/Build/source/texk/web2c/luatexdir/font/luatexfont.h +++ b/Build/source/texk/web2c/luatexdir/font/luatexfont.h @@ -152,10 +152,12 @@ void register_fd_entry(fd_entry * fd); boolean t1_subset(char *, char *, unsigned char *); char **load_enc_file(char *); -void writet1(PDF, fd_entry *); +void writet1(PDF, fd_entry *, int wide); void t1_free(void); extern int t1_length1, t1_length2, t1_length3; +extern int t1_wide_mode; + /* writetype2.c */ boolean writetype2(PDF, fd_entry *); diff --git a/Build/source/texk/web2c/luatexdir/font/sfnt.c b/Build/source/texk/web2c/luatexdir/font/sfnt.c index c7f4723c407..a58bda09236 100644 --- a/Build/source/texk/web2c/luatexdir/font/sfnt.c +++ b/Build/source/texk/web2c/luatexdir/font/sfnt.c @@ -248,8 +248,9 @@ ULONG sfnt_locate_table(sfnt * sfont, const char *tag) { ULONG offset; offset = sfnt_find_table_pos(sfont, tag); - if (offset == 0) - normal_error("ttf","sfnt table not found"); + if (offset == 0) { + formatted_error("ttf","%s table not found",tag); + } sfnt_seek_set(sfont, (long) offset); return offset; } diff --git a/Build/source/texk/web2c/luatexdir/font/tounicode.c b/Build/source/texk/web2c/luatexdir/font/tounicode.c index f0449aff957..32210600c21 100644 --- a/Build/source/texk/web2c/luatexdir/font/tounicode.c +++ b/Build/source/texk/web2c/luatexdir/font/tounicode.c @@ -287,6 +287,7 @@ static void set_glyph_unicode(char *s, glyph_unicode_entry * gp) } } +/* static void set_cid_glyph_unicode(long index, glyph_unicode_entry * gp, internal_font_number f) { char *s; @@ -295,13 +296,14 @@ static void set_cid_glyph_unicode(long index, glyph_unicode_entry * gp, internal gp->code = UNI_EXTRA_STRING; gp->unicode_seq = xstrdup(s); } else { - /*tex No fall back as we're providing them ourselves. */ + // No fall back as we're providing them ourselves. } } else { - /*tex Fall back. */ + // Fall back gp->code = index; } } +*/ int write_tounicode(PDF pdf, char **glyph_names, char *name) { @@ -470,9 +472,10 @@ int write_cid_tounicode(PDF pdf, fo_entry * fo, internal_font_number f) static int range_size[65537]; static glyph_unicode_entry gtab[65537]; int objnum; - int i, j, k; + int i, j, k, tu; int bfchar_count, bfrange_count, subrange_count; char *buf; + char *s; buf = xmalloc((unsigned) (strlen(fo->fd->fontname) + 8)); sprintf(buf, "%s-%s", (fo->fd->subset_tag != NULL ? fo->fd->subset_tag : "UCS"), fo->fd->fontname); objnum = pdf_create_obj(pdf, obj_type_others, 0); @@ -514,7 +517,36 @@ int write_cid_tounicode(PDF pdf, fo_entry * fo, internal_font_number f) if (quick_char_exists(k, i) && char_used(k, i)) { j = char_index(k, i); if (gtab[j].code == UNI_UNDEF) { + /* set_cid_glyph_unicode(i, >ab[j], f); + */ + tu = 0; + /*tex + First look in the instance (new). Ff this fails + us (context) it will go away or become an option. + */ + if (font_tounicode(k)) { + tu = 1; /*tex no fallback to index */ + if ((s = get_charinfo_tounicode(char_info(k, (int) i))) != NULL) { + gtab[j].code = UNI_EXTRA_STRING; + gtab[j].unicode_seq = xstrdup(s); + } + } + /*tex + Then look in the parent (was default, so one can + still be sparse). + */ + if (k != f && gtab[j].code == UNI_UNDEF && font_tounicode(f)) { + tu = 1; /*tex no fallback to index */ + if ((s = get_charinfo_tounicode(char_info(f, (int) i))) != NULL) { + gtab[j].code = UNI_EXTRA_STRING; + gtab[j].unicode_seq = xstrdup(s); + } + } + if (! tu) { + /*tex No tonunicode so we map onto index. */ + gtab[j].code = i; + } } } } diff --git a/Build/source/texk/web2c/luatexdir/font/tt_table.c b/Build/source/texk/web2c/luatexdir/font/tt_table.c index dfcd4d650cd..eba82728713 100644 --- a/Build/source/texk/web2c/luatexdir/font/tt_table.c +++ b/Build/source/texk/web2c/luatexdir/font/tt_table.c @@ -328,15 +328,23 @@ struct tt_os2__table *tt_read_os2__table(sfnt * sfont) table->sTypoLineGap = sfnt_get_short(sfont); table->usWinAscent = sfnt_get_ushort(sfont); table->usWinDescent = sfnt_get_ushort(sfont); - table->ulCodePageRange1 = sfnt_get_ulong(sfont); - table->ulCodePageRange2 = sfnt_get_ulong(sfont); - if (table->version == 0x0002) { + if (table->version >= 0x0001) { + table->ulCodePageRange1 = sfnt_get_ulong(sfont); + table->ulCodePageRange2 = sfnt_get_ulong(sfont); + } + if (table->version >= 0x0002) { table->sxHeight = sfnt_get_short(sfont); table->sCapHeight = sfnt_get_short(sfont); table->usDefaultChar = sfnt_get_ushort(sfont); table->usBreakChar = sfnt_get_ushort(sfont); table->usMaxContext = sfnt_get_ushort(sfont); } + /* + https://docs.microsoft.com/en-us/typography/opentype/spec/os2 + + There are now 5 versions but we don't read the few additional + fields as we don't use them. Some changes are cosmetical (names). + */ return table; } diff --git a/Build/source/texk/web2c/luatexdir/font/writecff.c b/Build/source/texk/web2c/luatexdir/font/writecff.c index e6570e070c6..2d0b16b085d 100644 --- a/Build/source/texk/web2c/luatexdir/font/writecff.c +++ b/Build/source/texk/web2c/luatexdir/font/writecff.c @@ -2830,7 +2830,7 @@ void write_cff(PDF pdf, cff_font * cffont, fd_entry * fd) The |CIDSet| is a table of bits indexed by cid, bytes with high order bit first, each (set) bit is a (present) CID. */ - if (1) { + if ((! pdf->omit_cidset) && (pdf->major_version == 1)) { int cid; cidset = pdf_create_obj(pdf, obj_type_others, 0); if (cidset != 0) { @@ -2884,7 +2884,7 @@ void write_cff(PDF pdf, cff_font * cffont, fd_entry * fd) cff_add_string(cffont, "Identity"); if (cffont->header_major == 2) { /*tex A crash. */ - } else { + } else if (cffont->private && (cffont->private)[0]) { cff_dict_update(cffont->private[0], cffont); } cff_update_string(cffont); @@ -2969,7 +2969,7 @@ void write_cid_cff(PDF pdf, cff_font * cffont, fd_entry * fd) The |CIDSet| table is a table of bits indexed by cid, bytes with high order bit first, each (set) bit is a (present) CID. */ - if (1) { + if ((! pdf->omit_cidset) && (pdf->major_version == 1)) { cidset = pdf_create_obj(pdf, obj_type_others, 0); if (cidset != 0) { size_t l = (last_cid / 8) + 1; diff --git a/Build/source/texk/web2c/luatexdir/font/writefont.c b/Build/source/texk/web2c/luatexdir/font/writefont.c index 5d75ef80cc7..5d902c954a9 100644 --- a/Build/source/texk/web2c/luatexdir/font/writefont.c +++ b/Build/source/texk/web2c/luatexdir/font/writefont.c @@ -23,6 +23,8 @@ with LuaTeX; if not, see <http://www.gnu.org/licenses/>. #include "ptexlib.h" #include "lua/luatex-api.h" +int t1_wide_mode = 0 ; + void write_cid_fontdictionary(PDF pdf, fo_entry * fo, internal_font_number f); static void create_cid_fontdictionary(PDF pdf, internal_font_number f); @@ -449,13 +451,17 @@ static void write_fontfile(PDF pdf, fd_entry * fd) fd->fm->type |= F_OTF; fd->fm->type ^= F_TRUETYPE; } } else if (is_type1(fd->fm)) { - writetype1w(pdf, fd); + if (t1_wide_mode) { + writet1(pdf, fd, 1); + } else { + writetype1w(pdf, fd); + } } else { normal_error("fonts","there is a problem writing the font file (1)"); } } else { if (is_type1(fd->fm)) { - writet1(pdf, fd); + writet1(pdf, fd, 0); } else if (is_truetype(fd->fm)) { writettf(pdf, fd); } else if (is_opentype(fd->fm)) { @@ -472,8 +478,16 @@ static void write_fontfile(PDF pdf, fd_entry * fd) pdf_begin_dict(pdf); if (is_cidkeyed(fd->fm)) { /*tex No subtype is used for |TRUETYPE\ based \OPENTYPE\ fonts. */ - if (is_opentype(fd->fm) || is_type1(fd->fm)) { + if (is_opentype(fd->fm)) { pdf_dict_add_name(pdf, "Subtype", "CIDFontType0C"); + } else if (is_type1(fd->fm)) { + if (t1_wide_mode) { + pdf_dict_add_int(pdf, "Length1", (int) t1_length1); + pdf_dict_add_int(pdf, "Length2", (int) t1_length2); + pdf_dict_add_int(pdf, "Length3", (int) t1_length3); + } else { + pdf_dict_add_name(pdf, "Subtype", "CIDFontType0C"); + } } } else if (is_type1(fd->fm)) { pdf_dict_add_int(pdf, "Length1", (int) t1_length1); @@ -553,14 +567,19 @@ static void write_fontdescriptor(PDF pdf, fd_entry * fd) write_fontmetrics(pdf, fd); if (fd->ff_found) { if (is_cidkeyed(fd->fm)) { - if (is_type1(fd->fm)) - pdf_dict_add_ref(pdf, "FontFile3", (int) fd->ff_objnum); - else if (is_truetype(fd->fm)) + if (is_type1(fd->fm)) { + if (t1_wide_mode) { + pdf_dict_add_ref(pdf, "FontFile", (int) fd->ff_objnum); + } else { + pdf_dict_add_ref(pdf, "FontFile3", (int) fd->ff_objnum); + } + } else if (is_truetype(fd->fm)) { pdf_dict_add_ref(pdf, "FontFile2", (int) fd->ff_objnum); - else if (is_opentype(fd->fm)) + } else if (is_opentype(fd->fm)) { pdf_dict_add_ref(pdf, "FontFile3", (int) fd->ff_objnum); - else + } else { normal_error("fonts","there is a problem writing the font file (4)"); + } } else { if (is_subsetted(fd->fm) && is_type1(fd->fm)) { /*tex |/CharSet| is optional; names may appear in any order */ @@ -575,14 +594,15 @@ static void write_fontdescriptor(PDF pdf, fd_entry * fd) pdf_set_space(pdf); } } - if (is_type1(fd->fm)) + if (is_type1(fd->fm)) { pdf_dict_add_ref(pdf, "FontFile", (int) fd->ff_objnum); - else if (is_truetype(fd->fm)) + } else if (is_truetype(fd->fm)) { pdf_dict_add_ref(pdf, "FontFile2", (int) fd->ff_objnum); - else if (is_opentype(fd->fm)) + } else if (is_opentype(fd->fm)) { pdf_dict_add_ref(pdf, "FontFile3", (int) fd->ff_objnum); - else + } else { normal_error("fonts","there is a problem writing the font file (5)"); + } } } if ((! pdf->omit_cidset) && (pdf->major_version == 1) && (cidset != 0) ) { @@ -620,23 +640,26 @@ static void write_fontdictionary(PDF pdf, fo_entry * fo) pdf_begin_obj(pdf, fo->fo_objnum, OBJSTM_ALWAYS); pdf_begin_dict(pdf); pdf_dict_add_name(pdf, "Type", "Font"); - if (is_type1(fo->fm)) + if (is_type1(fo->fm)) { pdf_dict_add_name(pdf, "Subtype", "Type1"); - else if (is_truetype(fo->fm)) + } else if (is_truetype(fo->fm)) { pdf_dict_add_name(pdf, "Subtype", "TrueType"); - else if (is_opentype(fo->fm)) + } else if (is_opentype(fo->fm)) { pdf_dict_add_name(pdf, "Subtype", "Type1"); - else + } else { normal_error("fonts","there is a problem writing the font file (6)"); + } pdf_dict_add_fontname(pdf, "BaseFont", fo->fd); pdf_dict_add_ref(pdf, "FontDescriptor", (int) fo->fd->fd_objnum); pdf_dict_add_int(pdf, "FirstChar", (int) fo->first_char); pdf_dict_add_int(pdf, "LastChar", (int) fo->last_char); pdf_dict_add_ref(pdf, "Widths", (int) fo->cw_objnum); - if ((is_type1(fo->fm) || is_opentype(fo->fm)) && fo->fe != NULL && fo->fe->fe_objnum != 0) + if ((is_type1(fo->fm) || is_opentype(fo->fm)) && fo->fe != NULL && fo->fe->fe_objnum != 0) { pdf_dict_add_ref(pdf, "Encoding", (int) fo->fe->fe_objnum); - if (fo->tounicode_objnum != 0) + } + if (fo->tounicode_objnum != 0) { pdf_dict_add_ref(pdf, "ToUnicode", (int) fo->tounicode_objnum); + } if (pdf_font_attr(fo->tex_font) != get_nullstr() && pdf_font_attr(fo->tex_font) != 0) { pdf_check_space(pdf); pdf_print(pdf, pdf_font_attr(fo->tex_font)); @@ -765,7 +788,6 @@ static int has_ttf_outlines(fm_entry * fm) void do_pdf_font(PDF pdf, internal_font_number f) { - int del_file = 0; fm_entry *fm; /*tex This is not 100\% true: CID is actually needed whenever (and only) there @@ -790,24 +812,6 @@ void do_pdf_font(PDF pdf, internal_font_number f) } else { fm->ps_name = font_fullname(f); } - if (fm->ff_name - && strlen(fm->ff_name) >= 6 - && strstr(fm->ff_name,".dfont") == (fm->ff_name + strlen(fm->ff_name) - 6)) { - /*tex - - In case of a .dfont (an obsolete format), we will extract the - correct ttf here, and adjust |fm->ff_name| to point to the - temporary file. This file will be deleted later. Todo: keep a - nicer name somewhere for the terminal message. - */ - char *s = FindResourceTtfFont(fm->ff_name, fm->ps_name); - if (s != NULL) { - fm->ff_name = s; - del_file = 1; - } else { - formatted_error("font","file '%s' does not contain font '%s'",fm->ff_name, fm->ps_name); - } - } /*tex Needed for the CIDSystemInfo: */ fm->encname = font_encodingname(f); fm->slant = font_slant(f); @@ -844,8 +848,6 @@ void do_pdf_font(PDF pdf, internal_font_number f) } set_cidkeyed(fm); create_cid_fontdictionary(pdf, f); - if (del_file) - unlink(fm->ff_name); } else { /*tex By now |font_map(f)|, if any, should have been set via |pdf_init_font|. */ if ((fm = font_map(f)) == NULL || (fm->ps_name == NULL && fm->ff_name == NULL)) @@ -867,8 +869,7 @@ void do_pdf_font(PDF pdf, internal_font_number f) */ -static int comp_glw_entry(const void *pa, const void *pb, void *p - __attribute__ ((unused))) +static int comp_glw_entry(const void *pa, const void *pb, void *p __attribute__ ((unused))) { unsigned short i, j; i = (unsigned short) (*(const glw_entry *) pa).id; @@ -890,7 +891,6 @@ static void create_cid_fontdescriptor(fo_entry * fo, internal_font_number f) assert(fo->fd->gl_tree != NULL); } - /*tex The values |font_bc()| and |font_ec()| are potentially large character ids, @@ -980,7 +980,6 @@ static void destroy_glw_cid_entry(void *pa, void *pb) xfree(e); } - static void create_cid_fontdictionary(PDF pdf, internal_font_number f) { fm_entry *fm = font_map(f); @@ -1038,8 +1037,15 @@ void write_cid_fontdictionary(PDF pdf, fo_entry * fo, internal_font_number f) pdf_begin_obj(pdf, i, OBJSTM_ALWAYS); pdf_begin_dict(pdf); pdf_dict_add_name(pdf, "Type", "Font"); - if (is_opentype(fo->fm) || is_type1(fo->fm)) { + if (is_opentype(fo->fm)) { pdf_dict_add_name(pdf, "Subtype", "CIDFontType0"); + } else if (is_type1(fo->fm)) { + if (t1_wide_mode) { + pdf_dict_add_name(pdf, "Subtype", "CIDFontType0"); + // pdf_dict_add_name(pdf, "CIDToGIDMap", "Identity"); + } else { + pdf_dict_add_name(pdf, "Subtype", "CIDFontType0"); + } } else { pdf_dict_add_name(pdf, "Subtype", "CIDFontType2"); pdf_dict_add_name(pdf, "CIDToGIDMap", "Identity"); diff --git a/Build/source/texk/web2c/luatexdir/font/writet1.c b/Build/source/texk/web2c/luatexdir/font/writet1.c index d3bf29341c1..33a7cd4442d 100644 --- a/Build/source/texk/web2c/luatexdir/font/writet1.c +++ b/Build/source/texk/web2c/luatexdir/font/writet1.c @@ -1292,9 +1292,10 @@ static void t1_subset_ascii_part(PDF pdf) strncpy((char *) pdf->fb->data + t1_fontname_offset, fd_cur->subset_tag,6); } /*tex Now really all glyphs needed from this font are in the |fd_cur->gl_tree|. */ - if (t1_encoding == ENC_STANDARD) - t1_puts(pdf, "/Encoding StandardEncoding def\n"); - else { + + if (t1_encoding == ENC_STANDARD) { + t1_puts(pdf,"/Encoding StandardEncoding def\n"); + } else { t1_puts(pdf,"/Encoding 256 array\n0 1 255 {1 index exch /.notdef put} for\n"); gl_tree = create_t1_glyph_tree(glyph_names); avl_t_init(&t, fd_cur->gl_tree); @@ -1425,10 +1426,17 @@ static void t1_read_subrs(PDF pdf) } } -#define t1_subr_flush() t1_flush_cs(pdf, true) -#define t1_cs_flush() t1_flush_cs(pdf, false) +/*tex + + For historical reasons we share the funcition but it makes not much sense to + do so as not that much is shared. -static void t1_flush_cs(PDF pdf, boolean is_subr) +*/ + +#define t1_subr_flush(wide) t1_flush_cs(pdf, true, wide) +#define t1_cs_flush(wide) t1_flush_cs(pdf, false, wide) + +static void t1_flush_cs(PDF pdf, boolean is_subr, int wide) { char *p; byte *r, *return_cs = NULL; @@ -1449,7 +1457,11 @@ static void t1_flush_cs(PDF pdf, boolean is_subr) size_pos = cs_size_pos; tab = cs_tab; end_tab = cs_ptr; - count = cs_counter; + if (wide) { + count = cs_ptr - cs_tab + 1; + } else { + count = cs_counter; + } } t1_line_ptr = t1_line_array; for (p = start_line; p - start_line < size_pos;) @@ -1462,50 +1474,63 @@ static void t1_flush_cs(PDF pdf, boolean is_subr) t1_putline(pdf); /*tex For |-Wall|. */ cs_len = 0; - /*tex Create |return_cs| to replace unsused |subr|s. */ + /*tex Create |return_cs| to replace unused |subr|s. */ if (is_subr) { cr = 4330; - cs_len = 0; /*tex At this point we have |t1_lenIV >= 0;| a negative value would be caught in |t1_scan_param|. */ return_cs = xtalloc((unsigned) (t1_lenIV + 1), byte); - for (cs_len = 0, r = return_cs; cs_len < t1_lenIV; cs_len++, r++) + for (cs_len = 0, r = return_cs; cs_len < t1_lenIV; cs_len++, r++) { *r = cencrypt(0x00, &cr); + } *r = cencrypt(CS_RETURN, &cr); cs_len++; } for (ptr = tab; ptr < end_tab; ptr++) { if (ptr->used) { - if (is_subr) - sprintf(t1_line_array, "dup %li %u", (long int) (ptr - tab), - ptr->cslen); - else + if (is_subr) { + sprintf(t1_line_array, "dup %li %u", (long int) (ptr - tab), ptr->cslen); + } else { sprintf(t1_line_array, "/%s %u", ptr->name, ptr->cslen); + } p = strend(t1_line_array); memcpy(p, ptr->data, ptr->len); t1_line_ptr = p + ptr->len; t1_putline(pdf); - } else { - /*tex Replace unsused subr's by |return_cs|. */ - if (is_subr) { - sprintf(t1_line_array, "dup %li %u%s ", (long int) (ptr - tab), - cs_len, cs_token_pair[0]); + } else if (is_subr) { + /*tex Replace unused subr's by |return_cs|. */ + sprintf(t1_line_array, "dup %li %u%s ", (long int) (ptr - tab), cs_len, cs_token_pair[0]); + p = strend(t1_line_array); + memcpy(p, return_cs, cs_len); + t1_line_ptr = p + cs_len; + t1_putline(pdf); + sprintf(t1_line_array, " %s", cs_token_pair[1]); + t1_line_ptr = eol(t1_line_array); + t1_putline(pdf); + } else if (wide) { + if (cs_notdef != NULL) { + sprintf(t1_line_array, "/%s %u", ptr->name, cs_notdef->cslen); p = strend(t1_line_array); - memcpy(p, return_cs, cs_len); - t1_line_ptr = p + cs_len; - t1_putline(pdf); - sprintf(t1_line_array, " %s", cs_token_pair[1]); - t1_line_ptr = eol(t1_line_array); + memcpy(p, cs_notdef->data, cs_notdef->len); + t1_line_ptr = p + cs_notdef->len; t1_putline(pdf); + } else { + /*tex Troubles! */ + } + } + if (ptr->name != notdef) { + if (wide) { + xfree(ptr->data); } } - xfree(ptr->data); - if (is_subr) + if (is_subr) { ptr->valid = false; - if (ptr->name != notdef) + } + if (ptr->name != notdef) { xfree(ptr->name); + } } sprintf(t1_line_array, "%s", line_end); t1_line_ptr = eol(t1_line_array); @@ -1520,15 +1545,16 @@ static void t1_flush_cs(PDF pdf, boolean is_subr) } } xfree(return_cs); + } else if (wide && cs_notdef != NULL) { + xfree(cs_notdef->data); } xfree(tab); xfree(start_line); xfree(line_end); } -static void t1_mark_glyphs(void) +static void t1_mark_glyphs(int wide) { - char *glyph; struct avl_traverser t; cs_entry *ptr; if (t1_synthetic || fd_cur->all_glyphs) { @@ -1547,9 +1573,16 @@ static void t1_mark_glyphs(void) } mark_cs(notdef); avl_t_init(&t, fd_cur->gl_tree); - for (glyph = (char *) avl_t_first(&t, fd_cur->gl_tree); glyph != NULL; - glyph = (char *) avl_t_next(&t)) { - mark_cs(glyph); + if (wide) { + glw_entry *glyph; + for (glyph = (glw_entry *) avl_t_first(&t, fd_cur->gl_tree); glyph != NULL; glyph = (glw_entry *) avl_t_next(&t)) { + mark_cs((cs_tab + (int) glyph->id)->name); + } + } else { + char *glyph; + for (glyph = (char *) avl_t_first(&t, fd_cur->gl_tree); glyph != NULL; glyph = (char *) avl_t_next(&t)) { + mark_cs(glyph); + } } if (subr_tab != NULL) for (subr_max = -1, ptr = subr_tab; ptr - subr_tab < subr_size; ptr++) @@ -1557,7 +1590,6 @@ static void t1_mark_glyphs(void) subr_max = (int) (ptr - subr_tab); } - /*tex When |t1_subset_charstrings| is called, the |t1_line_array| contains @@ -1581,15 +1613,15 @@ static void t1_check_unusual_charstring(void) if (sscanf(p, "%i", &i) != 1) { strcpy(t1_buf_array, t1_line_array); t1_getline(); - alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE); + alloc_array(t1_buf, strlen(t1_line_array) + (t1_buf_array?strlen(t1_buf_array):0) + 1, T1_BUF_SIZE); strcat(t1_buf_array, t1_line_array); - alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE); + alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE); strcpy(t1_line_array, t1_buf_array); t1_line_ptr = eol(t1_line_array); } } -static void t1_subset_charstrings(PDF pdf) +static void t1_subset_charstrings(PDF pdf, int wide) { cs_entry *ptr; t1_check_unusual_charstring(); @@ -1607,16 +1639,16 @@ static void t1_subset_charstrings(PDF pdf) t1_getline(); } cs_dict_end = xstrdup(t1_line_array); - t1_mark_glyphs(); + t1_mark_glyphs(wide); if (subr_tab != NULL) { if (cs_token_pair == NULL) formatted_error("type 1","mismatched subroutine begin/end token pairs"); - t1_subr_flush(); + t1_subr_flush(wide); } for (cs_counter = 0, ptr = cs_tab; ptr < cs_ptr; ptr++) if (ptr->used) cs_counter++; - t1_cs_flush(); + t1_cs_flush(wide); } static void t1_subset_end(PDF pdf) @@ -1656,14 +1688,13 @@ static void t1_subset_end(PDF pdf) get_length3(); } -void writet1(PDF pdf, fd_entry * fd) +void writet1(PDF pdf, fd_entry * fd, int wide) { /*tex |fd_cur| is global inside |writet1.c|. */ fd_cur = fd; assert(fd_cur->fm != NULL); assert(is_type1(fd->fm)); assert(is_included(fd->fm)); - t1_save_offset = 0; if (!is_subsetted(fd_cur->fm)) { /*tex Include entire font. */ @@ -1675,14 +1706,15 @@ void writet1(PDF pdf, fd_entry * fd) return; } /*tex Partial downloading. */ - if (!(fd->ff_found = t1_open_fontfile(filetype_subset))) + if (!(fd->ff_found = t1_open_fontfile(filetype_subset))) { return; + } t1_subset_ascii_part(pdf); t1_start_eexec(pdf); cc_init(); cs_init(); t1_read_subrs(pdf); - t1_subset_charstrings(pdf); + t1_subset_charstrings(pdf,wide); t1_subset_end(pdf); t1_close_font_file(filetype_subset); xfree(t1_buffer); diff --git a/Build/source/texk/web2c/luatexdir/image/epdf.h b/Build/source/texk/web2c/luatexdir/image/epdf.h index 9c32c06b795..d0cd7f79ee0 100644 --- a/Build/source/texk/web2c/luatexdir/image/epdf.h +++ b/Build/source/texk/web2c/luatexdir/image/epdf.h @@ -145,7 +145,8 @@ int luaopen_epdf(lua_State * L); typedef struct InObj InObj; struct InObj { - ppref *ref; /* ref in original PDF */ + /* int version; */ /* old object number in included PDF */ + int objnum; /* old version number in included PDF, we can do without */ int num; /* new object number in output PDF */ InObj *next; /* next entry in list of indirect objects */ } ; diff --git a/Build/source/texk/web2c/luatexdir/image/image.h b/Build/source/texk/web2c/luatexdir/image/image.h index 985f53d06eb..687aa2bdf85 100644 --- a/Build/source/texk/web2c/luatexdir/image/image.h +++ b/Build/source/texk/web2c/luatexdir/image/image.h @@ -129,6 +129,8 @@ typedef struct { int luaref ; boolean keepopen; boolean nolength; + boolean notype; + boolean nobbox; int errorlevel; int pdfmajorversion; int pdfminorversion; @@ -177,7 +179,9 @@ typedef struct { # define img_flags(N) ((N)->flags) # define img_luaref(N) ((N)->luaref) # define img_keepopen(N) ((N)->keepopen) +# define img_nobbox(N) ((N)->nobbox) # define img_nolength(N) ((N)->nolength) +# define img_notype(N) ((N)->notype) # define img_errorlevel(N) ((N)->errorlevel) # define img_pdfmajorversion(N) ((N)->pdfmajorversion) # define img_pdfminorversion(N) ((N)->pdfminorversion) diff --git a/Build/source/texk/web2c/luatexdir/image/pdftoepdf.c b/Build/source/texk/web2c/luatexdir/image/pdftoepdf.c index b29493b073d..664bfef18c9 100644 --- a/Build/source/texk/web2c/luatexdir/image/pdftoepdf.c +++ b/Build/source/texk/web2c/luatexdir/image/pdftoepdf.c @@ -23,6 +23,11 @@ with LuaTeX; if not, see <http://www.gnu.org/licenses/>. #define __STDC_FORMAT_MACROS /* for PRId64 etc. */ #include "image/epdf.h" +#include "luatexcallbackids.h" + +/* to be sorted out, we cannot include */ + +#define xfree(a) do { free(a); a = NULL; } while (0) /* Conflict with pdfgen.h */ @@ -270,31 +275,37 @@ PdfDocument *refMemStreamPdfDocument(char *docstream, unsigned long long streams typedef struct ObjMap ObjMap ; struct ObjMap { - ppref * in; + /* int version; */ /* not really needed */ + int objnum; int out_num; }; static int CompObjMap(const void *pa, const void *pb, void *p) { - const ppref *a = (((const ObjMap *) pa)->in); - const ppref *b = (((const ObjMap *) pb)->in); - if (a->number > b->number) + const ObjMap *a = (((const ObjMap *) pa)); + const ObjMap *b = (((const ObjMap *) pb)); + if (a->objnum > b->objnum) return 1; - else if (a->number < b->number) + else if (a->objnum < b->objnum) return -1; + /* else if (a->version == b->version) return 0; else if (a->version < b->version) return -1; return 1; + */ + return 0; } static ObjMap *findObjMap(PdfDocument * pdf_doc, ppref * in) { ObjMap *obj_map, tmp; - if (pdf_doc->ObjMapTree == NULL) + if (pdf_doc->ObjMapTree == NULL) { return NULL; - tmp.in = in; + } + tmp.objnum = in->number; + /* tmp.version = in->version; */ obj_map = (ObjMap *) avl_find(pdf_doc->ObjMapTree, &tmp); return obj_map; } @@ -302,10 +313,12 @@ static ObjMap *findObjMap(PdfDocument * pdf_doc, ppref * in) static void addObjMap(PdfDocument * pdf_doc, ppref * in, int out_num) { ObjMap *obj_map = NULL; - if (pdf_doc->ObjMapTree == NULL) + if (pdf_doc->ObjMapTree == NULL) { pdf_doc->ObjMapTree = avl_create(CompObjMap, NULL, &avl_xallocator); + } obj_map = (ObjMap*)xmalloc(sizeof(ObjMap)); - obj_map->in = in; + /* obj_map->version = in->version; */ + obj_map->objnum = in->number; obj_map->out_num = out_num; avl_probe(pdf_doc->ObjMapTree, obj_map); } @@ -332,7 +345,8 @@ static int addInObj(PDF pdf, PdfDocument * pdf_doc, ppref * ref) return obj_map->out_num; } n = (InObj*)xmalloc(sizeof(InObj)); - n->ref = ref; + n->objnum = ref->number; + /* n->version = ref->version; */ n->next = NULL; n->num = pdf_create_obj(pdf, obj_type_others, 0); addObjMap(pdf_doc, ref, n->num); @@ -408,7 +422,7 @@ static void copyDict(PDF pdf, PdfDocument * pdf_doc, ppdict *dict) pdf_end_dict(pdf); } -static void copyStreamStream(PDF pdf, ppstream * stream, int decode) +static void copyStreamStream(PDF pdf, ppstream * stream, int decode, int callback_id) { uint8_t *data = NULL; size_t size = 0; @@ -419,7 +433,18 @@ static void copyStreamStream(PDF pdf, ppstream * stream, int decode) } else { data = ppstream_all(stream,&size,decode); if (data != NULL) { - pdf_out_block(pdf, (const char *) data, size); + /*tex We only do this when we recompress in which case we fetch the whole stream. */ + if (callback_id == 1) { + callback_id = callback_defined(process_pdf_image_content_callback); + } + if (callback_id) { + char *result = NULL; + run_callback(callback_id, "S->S",(char *) data,&result); + pdf_out_block(pdf, (const char *) (uint8_t *) result, size); + xfree(result); + } else { + pdf_out_block(pdf, (const char *) data, size); + } } } ppstream_done(stream); @@ -429,38 +454,57 @@ static void copyStream(PDF pdf, PdfDocument * pdf_doc, ppstream * stream) { ppdict *dict = stream->dict; /* bug in: stream_dict(stream) */ if (pdf->compress_level == 0 || pdf->recompress) { - const char *ignoredkeys[] = { - "Filter", "Decode", "Length", "DL", NULL - }; - int i; - int n = dict->size; - pdf_begin_dict(pdf); - for (i=0; i<n; ++i) { - const char *key = ppdict_key(dict,i); - int okay = 1; + ppobj * obj = ppdict_get_obj (dict, "Filter"); + int known = 0; + if (obj != NULL && obj->type == PPNAME) { + const char *codecs[] = { + "ASCIIHexDecode", "ASCII85Decode", "RunLengthDecode", + "FlateDecode", "LZWDecode", NULL + }; int k; - for (k = 0; ignoredkeys[k] != NULL; k++) { - if (strcmp(key,ignoredkeys[k]) == 0) { - okay = 0; + const char *val = ppobj_get_name(obj); + for (k = 0; codecs[k] != NULL; k++) { + if (strcmp(val,codecs[k]) == 0) { + known = 1; break; } } - if (okay) { - pdf_add_name(pdf, key); - copyObject(pdf, pdf_doc, ppdict_at(dict,i)); + } + if (known) { + /*tex recompress or keep uncompressed */ + const char *ignoredkeys[] = { + "Filter", "DecodeParms", "Length", "DL", NULL + }; + int i; + pdf_begin_dict(pdf); + for (i=0; i<dict->size; ++i) { + const char *key = ppdict_key(dict,i); + int copy = 1; + int k; + for (k = 0; ignoredkeys[k] != NULL; k++) { + if (strcmp(key,ignoredkeys[k]) == 0) { + copy = 0; + break; + } + } + if (copy) { + pdf_add_name(pdf, key); + copyObject(pdf, pdf_doc, ppdict_at(dict,i)); + } } + pdf_dict_add_streaminfo(pdf); + pdf_end_dict(pdf); + pdf_begin_stream(pdf); + copyStreamStream(pdf, stream, 1, 0); + pdf_end_stream(pdf); + return ; } - pdf_dict_add_streaminfo(pdf); - pdf_end_dict(pdf); - pdf_begin_stream(pdf); - copyStreamStream(pdf, stream, 1); - pdf_end_stream(pdf); - } else { - copyDict(pdf, pdf_doc, dict); - pdf_begin_stream(pdf); - copyStreamStream(pdf, stream, 0); - pdf_end_stream(pdf); } + /* copy as-is */ + copyDict(pdf, pdf_doc, dict); + pdf_begin_stream(pdf); + copyStreamStream(pdf, stream, 0, 0); + pdf_end_stream(pdf); } static void copyObject(PDF pdf, PdfDocument * pdf_doc, ppobj * obj) @@ -505,12 +549,16 @@ static void writeRefs(PDF pdf, PdfDocument * pdf_doc) { InObj *r, *n; ppobj * obj; + ppref * ref ; + ppxref * xref = ppdoc_xref (pdf_doc->pdfe); for (r = pdf_doc->inObjList; r != NULL;) { - obj = ppref_obj(r->ref); - if (obj->type == PPSTREAM) + ref = ppxref_find (xref, (ppuint) r->objnum); + obj = ppref_obj(ref); + if (obj->type == PPSTREAM) { pdf_begin_obj(pdf, r->num, OBJSTM_NEVER); - else + } else { pdf_begin_obj(pdf, r->num, 2); + } copyObject(pdf, pdf_doc, obj); pdf_end_obj(pdf); n = r->next; @@ -520,6 +568,7 @@ static void writeRefs(PDF pdf, PdfDocument * pdf_doc) } } + /* get the pagebox coordinates according to the pagebox_spec */ static void somebox(ppdict *page, const char * key, pprect * box) @@ -578,11 +627,6 @@ static ppdict * get_pdf_page_dict(ppdoc *pdfe, int n) return NULL; } -// static ppdict * get_pdf_page_dict(ppdoc *pdfe, int n) -// { -// return ppref_obj(ppdoc_page(pdfe,n))->dict; -// } - void read_pdf_info(image_dict * idict) { PdfDocument *pdf_doc = NULL; @@ -592,7 +636,7 @@ void read_pdf_info(image_dict * idict) ppint rotate = 0; int pdf_major_version_found = 1; int pdf_minor_version_found = 3; - float xsize, ysize, xorig, yorig; + double xsize, ysize, xorig, yorig; if (img_type(idict) == IMG_TYPE_PDF) { pdf_doc = refPdfDocument(img_filepath(idict), FE_FAIL, img_userpassword(idict), img_ownerpassword(idict)); } else if (img_type(idict) == IMG_TYPE_PDFMEMSTREAM) { @@ -851,12 +895,12 @@ void write_epdf(PDF pdf, image_dict * idict, int suppress_optional_info) Write the Page contents. */ content = ppdict_rget_obj(pageDict, "Contents"); - if (content->type == PPSTREAM) { + if (content && content->type == PPSTREAM) { if (pdf->compress_level == 0 || pdf->recompress) { pdf_dict_add_streaminfo(pdf); pdf_end_dict(pdf); pdf_begin_stream(pdf); - copyStreamStream(pdf, content->stream,1); /* decompress */ + copyStreamStream(pdf, content->stream, 1, 1); /* decompress */ } else { /* copies compressed stream */ ppstream * stream = content->stream; @@ -878,18 +922,18 @@ void write_epdf(PDF pdf, image_dict * idict, int suppress_optional_info) } */ } - pdf_end_dict(pdf); + pdf_end_dict(pdf); pdf_begin_stream(pdf); - copyStreamStream(pdf, stream,0); + copyStreamStream(pdf, stream, 0, 0); } else { pdf_dict_add_streaminfo(pdf); pdf_end_dict(pdf); pdf_begin_stream(pdf); - copyStreamStream(pdf, stream,1); + copyStreamStream(pdf, stream, 1, 0); } } pdf_end_stream(pdf); - } else if (content->type == PPARRAY) { + } else if (content && content->type == PPARRAY) { /* listens to compresslevel */ pdf_dict_add_streaminfo(pdf); pdf_end_dict(pdf); @@ -913,7 +957,7 @@ void write_epdf(PDF pdf, image_dict * idict, int suppress_optional_info) } else { b = 1; } - copyStreamStream(pdf, (ppstream *) o->stream,1); + copyStreamStream(pdf, (ppstream *) o->stream, 1, 0); } } } diff --git a/Build/source/texk/web2c/luatexdir/image/writeimg.c b/Build/source/texk/web2c/luatexdir/image/writeimg.c index e3e3f608fea..7fe8444bced 100644 --- a/Build/source/texk/web2c/luatexdir/image/writeimg.c +++ b/Build/source/texk/web2c/luatexdir/image/writeimg.c @@ -541,53 +541,68 @@ scaled_whd scale_img(image_dict * idict, scaled_whd alt_rule, int transform) /*tex natural size corresponding to image resolution */ scaled_whd nat; int default_res; - if ((img_type(idict) == IMG_TYPE_PDF || img_type(idict) == IMG_TYPE_PDFMEMSTREAM - || img_type(idict) == IMG_TYPE_PDFSTREAM) && img_is_bbox(idict)) { - /*tex dimensions from image.bbox */ - x = img_xsize(idict) = img_bbox(idict)[2] - img_bbox(idict)[0]; - y = img_ysize(idict) = img_bbox(idict)[3] - img_bbox(idict)[1]; - img_xorig(idict) = img_bbox(idict)[0]; - img_yorig(idict) = img_bbox(idict)[1]; - } else { - /*tex dimensions, resolutions from image file */ - x = img_xsize(idict); - y = img_ysize(idict); - } - xr = img_xres(idict); - yr = img_yres(idict); - if (x <= 0 || y <= 0 || xr < 0 || yr < 0) - normal_error("pdf backend","invalid image dimensions"); - if (xr > 65535 || yr > 65535) { - xr = 0; - yr = 0; - normal_warning("pdf backend","too large image resolution ignored"); - } - if (((transform - img_rotation(idict)) & 1) == 1) { - tmp = x; - x = y; - y = tmp; - tmp = xr; - xr = yr; - yr = tmp; - } - /*tex always for images */ nat.dp = 0; - if (img_type(idict) == IMG_TYPE_PDF || img_type(idict) == IMG_TYPE_PDFMEMSTREAM - || img_type(idict) == IMG_TYPE_PDFSTREAM) { - nat.wd = x; - nat.ht = y; + nat.wd = 0; + nat.ht = 0; + if (img_nobbox(idict)) { + if (img_is_bbox(idict)) { + x = img_xsize(idict) = img_bbox(idict)[2] - img_bbox(idict)[0]; + y = img_ysize(idict) = img_bbox(idict)[3] - img_bbox(idict)[1]; + img_xorig(idict) = img_bbox(idict)[0]; + img_yorig(idict) = img_bbox(idict)[1]; + nat.wd = x; + nat.ht = y; + } else { + normal_error("pdf backend","use boundingbox to pass dimensions"); + } } else { - default_res = fix_int(pdf_image_resolution, 0, 65535); - if (default_res > 0 && (xr == 0 || yr == 0)) { - xr = default_res; - yr = default_res; + if ((img_type(idict) == IMG_TYPE_PDF || img_type(idict) == IMG_TYPE_PDFMEMSTREAM + || img_type(idict) == IMG_TYPE_PDFSTREAM) && img_is_bbox(idict)) { + /*tex dimensions from image.bbox */ + x = img_xsize(idict) = img_bbox(idict)[2] - img_bbox(idict)[0]; + y = img_ysize(idict) = img_bbox(idict)[3] - img_bbox(idict)[1]; + img_xorig(idict) = img_bbox(idict)[0]; + img_yorig(idict) = img_bbox(idict)[1]; + } else { + /*tex dimensions, resolutions from image file */ + x = img_xsize(idict); + y = img_ysize(idict); + } + xr = img_xres(idict); + yr = img_yres(idict); + if (x <= 0 || y <= 0 || xr < 0 || yr < 0) + normal_error("pdf backend","invalid image dimensions"); + if (xr > 65535 || yr > 65535) { + xr = 0; + yr = 0; + normal_warning("pdf backend","too large image resolution ignored"); + } + if (((transform - img_rotation(idict)) & 1) == 1) { + tmp = x; + x = y; + y = tmp; + tmp = xr; + xr = yr; + yr = tmp; } - if (xr > 0 && yr > 0) { - nat.wd = ext_xn_over_d(one_hundred_inch, x, 100 * xr); - nat.ht = ext_xn_over_d(one_hundred_inch, y, 100 * yr); + /*tex always for images */ + if (img_type(idict) == IMG_TYPE_PDF || img_type(idict) == IMG_TYPE_PDFMEMSTREAM + || img_type(idict) == IMG_TYPE_PDFSTREAM) { + nat.wd = x; + nat.ht = y; } else { - nat.wd = ext_xn_over_d(one_hundred_inch, x, 7200); - nat.ht = ext_xn_over_d(one_hundred_inch, y, 7200); + default_res = fix_int(pdf_image_resolution, 0, 65535); + if (default_res > 0 && (xr == 0 || yr == 0)) { + xr = default_res; + yr = default_res; + } + if (xr > 0 && yr > 0) { + nat.wd = ext_xn_over_d(one_hundred_inch, x, 100 * xr); + nat.ht = ext_xn_over_d(one_hundred_inch, y, 100 * yr); + } else { + nat.wd = ext_xn_over_d(one_hundred_inch, x, 7200); + nat.ht = ext_xn_over_d(one_hundred_inch, y, 7200); + } } } return tex_scale(nat, alt_rule); @@ -642,26 +657,32 @@ void pdf_write_image(PDF pdf, int n) void check_pdfstream_dict(image_dict * idict) { - if (!img_is_bbox(idict)) + if (!img_is_bbox(idict) && !img_nobbox(idict)) { normal_error("pdf backend","image.stream: no bbox given"); - if (img_state(idict) < DICT_FILESCANNED) + } + if (img_state(idict) < DICT_FILESCANNED) { img_state(idict) = DICT_FILESCANNED; + } } void write_pdfstream(PDF pdf, image_dict * idict) { pdf_begin_obj(pdf, img_objnum(idict), OBJSTM_NEVER); pdf_begin_dict(pdf); - pdf_dict_add_name(pdf, "Type", "XObject"); - pdf_dict_add_name(pdf, "Subtype", "Form"); - pdf_dict_add_int(pdf, "FormType", 1); - pdf_add_name(pdf, "BBox"); - pdf_begin_array(pdf); - pdf_add_real(pdf, sp2bp(img_bbox(idict)[0])); - pdf_add_real(pdf, sp2bp(img_bbox(idict)[1])); - pdf_add_real(pdf, sp2bp(img_bbox(idict)[2])); - pdf_add_real(pdf, sp2bp(img_bbox(idict)[3])); - pdf_end_array(pdf); + if (!img_notype(idict)) { + pdf_dict_add_name(pdf, "Type", "XObject"); + pdf_dict_add_name(pdf, "Subtype", "Form"); + pdf_dict_add_int(pdf, "FormType", 1); + } + if (!img_nobbox(idict)) { + pdf_add_name(pdf, "BBox"); + pdf_begin_array(pdf); + pdf_add_real(pdf, sp2bp(img_bbox(idict)[0])); + pdf_add_real(pdf, sp2bp(img_bbox(idict)[1])); + pdf_add_real(pdf, sp2bp(img_bbox(idict)[2])); + pdf_add_real(pdf, sp2bp(img_bbox(idict)[3])); + pdf_end_array(pdf); + } if (img_attr(idict) != NULL && strlen(img_attr(idict)) > 0) { pdf_printf(pdf, "\n%s\n", img_attr(idict)); } diff --git a/Build/source/texk/web2c/luatexdir/lua/lcallbacklib.c b/Build/source/texk/web2c/luatexdir/lua/lcallbacklib.c index 32cf6630223..f0297ae8f51 100644 --- a/Build/source/texk/web2c/luatexdir/lua/lcallbacklib.c +++ b/Build/source/texk/web2c/luatexdir/lua/lcallbacklib.c @@ -83,6 +83,7 @@ static const char *const callbacknames[] = { "new_graf", "page_objnum_provider", "make_extensible", + "process_pdf_image_content", NULL }; diff --git a/Build/source/texk/web2c/luatexdir/lua/lfontlib.c b/Build/source/texk/web2c/luatexdir/lua/lfontlib.c index 2592ffba683..b3ac2aa536e 100644 --- a/Build/source/texk/web2c/luatexdir/lua/lfontlib.c +++ b/Build/source/texk/web2c/luatexdir/lua/lfontlib.c @@ -257,6 +257,15 @@ static int getfont(lua_State * L) return 1; } +static int getparameters(lua_State * L) +{ + int i = luaL_checkinteger(L, -1); + if (i && is_valid_font(i)) { + return font_parameters_to_lua(L,i); + } + return 0; +} + static int getfontid(lua_State * L) { if (lua_type(L, 1) == LUA_TSTRING) { @@ -284,6 +293,7 @@ static const struct luaL_Reg fontlib[] = { {"max", tex_max_font}, {"each", tex_each_font}, {"getfont", getfont}, + {"getparameters", getparameters}, {"setfont", setfont}, {"addcharacters", addcharacters}, {"setexpansion", setexpansion}, diff --git a/Build/source/texk/web2c/luatexdir/lua/limglib.c b/Build/source/texk/web2c/luatexdir/lua/limglib.c index ce2b4b7b538..76c96bfb316 100644 --- a/Build/source/texk/web2c/luatexdir/lua/limglib.c +++ b/Build/source/texk/web2c/luatexdir/lua/limglib.c @@ -35,6 +35,7 @@ const char *img_types[] = { "jbig2", "stream", "memstream", + "rawstream", NULL }; @@ -119,7 +120,7 @@ static void read_scale_img(image * a) luaL_error(Luas, "the image scaler needs a valid image"); } else { ad = img_dict(a); - if (a == NULL) { + if (ad == NULL) { luaL_error(Luas, "the image scaler needs a valid dictionary"); } else { if (img_state(ad) == DICT_NEW) { @@ -386,6 +387,10 @@ static int m_img_get(lua_State * L) lua_pushboolean(L, img_keepopen(d)); } else if (lua_key_eq(s,nolength)) { lua_pushboolean(L, img_nolength(d)); + } else if (lua_key_eq(s,notype)) { + lua_pushboolean(L, img_notype(d)); + } else if (lua_key_eq(s,nobbox)) { + lua_pushboolean(L, img_nobbox(d)); } else if (lua_key_eq(s,filepath)) { if (img_filepath(d) == NULL || strlen(img_filepath(d)) == 0) { lua_pushnil(L); @@ -536,7 +541,7 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) } else if (t == LUA_TSTRING) { img_width(a) = dimen_to_number(L, lua_tostring(L, -1)); } else { - luaL_error(L, "image.width needs integer or nil value or dimension string"); + luaL_error(L, "img.width needs integer or nil value or dimension string"); } } else if (lua_key_eq(s,height)) { if (t == LUA_TNIL) { @@ -546,7 +551,7 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) } else if (t == LUA_TSTRING) { img_height(a) = dimen_to_number(L, lua_tostring(L, -1)); } else { - luaL_error(L, "image.height needs integer or nil value or dimension string"); + luaL_error(L, "img.height needs integer or nil value or dimension string"); } } else if (lua_key_eq(s,depth)) { if (t == LUA_TNIL) { @@ -556,72 +561,72 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) } else if (t == LUA_TSTRING) { img_depth(a) = dimen_to_number(L, lua_tostring(L, -1)); } else { - luaL_error(L, "image.depth needs integer or nil value or dimension string"); + luaL_error(L, "img.depth needs integer or nil value or dimension string"); } } else if (lua_key_eq(s,transform)) { if (t == LUA_TNUMBER) { img_transform(a) = (int) lua_tointeger(L, -1); } else { - luaL_error(L, "image.transform needs integer value"); + luaL_error(L, "img.transform needs integer value"); } } else if (lua_key_eq(s,filename)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.filename is now read-only"); + luaL_error(L, "img.filename is now read-only"); } else if (img_type(d) == IMG_TYPE_PDFSTREAM) { /* just ignore */ } else if (t == LUA_TSTRING) { xfree(img_filename(d)); img_filename(d) = xstrdup(lua_tostring(L, -1)); } else { - luaL_error(L, "image.filename needs string value"); + luaL_error(L, "img.filename needs string value"); } } else if (lua_key_eq(s,visiblefilename)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.visiblefilename is now read-only"); + luaL_error(L, "img.visiblefilename is now read-only"); } else if (img_type(d) == IMG_TYPE_PDFSTREAM) { img_visiblefilename(d) = NULL; } else if (t == LUA_TSTRING) { xfree(img_visiblefilename(d)); img_visiblefilename(d) = xstrdup(lua_tostring(L, -1)); } else { - luaL_error(L, "image.visiblefilename needs string value"); + luaL_error(L, "img.visiblefilename needs string value"); } } else if (lua_key_eq(s,userpassword)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.userpassword is now read-only"); + luaL_error(L, "img.userpassword is now read-only"); } else if (img_type(d) == IMG_TYPE_PDFSTREAM) { img_userpassword(d) = NULL; } else if (t == LUA_TSTRING) { xfree(img_userpassword(d)); img_userpassword(d) = xstrdup(lua_tostring(L, -1)); } else { - luaL_error(L, "image.userpassword needs string value"); + luaL_error(L, "img.userpassword needs string value"); } } else if (lua_key_eq(s,ownerpassword)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.ownerpassword is now read-only"); + luaL_error(L, "img.ownerpassword is now read-only"); } else if (img_type(d) == IMG_TYPE_PDFSTREAM) { img_ownerpassword(d) = NULL; } else if (t == LUA_TSTRING) { xfree(img_ownerpassword(d)); img_ownerpassword(d) = xstrdup(lua_tostring(L, -1)); } else { - luaL_error(L, "image.ownerpassword needs string value"); + luaL_error(L, "img.ownerpassword needs string value"); } } else if (lua_key_eq(s,attr)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.attr is now read-only"); + luaL_error(L, "img.attr is now read-only"); } else if (t == LUA_TSTRING) { xfree(img_attr(d)); img_attr(d) = xstrdup(lua_tostring(L, -1)); } else if (t == LUA_TNIL) { xfree(img_attr(d)); } else { - luaL_error(L, "image.attr needs string or nil value"); + luaL_error(L, "img.attr needs string or nil value"); } } else if (lua_key_eq(s,page)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.page is now read-only"); + luaL_error(L, "img.page is now read-only"); } else if (t == LUA_TSTRING) { xfree(img_pagename(d)); img_pagename(d) = xstrdup(lua_tostring(L, -1)); @@ -630,21 +635,21 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) img_pagenum(d) = (int) lua_tointeger(L, -1); xfree(img_pagename(d)); } else { - luaL_error(L, "image.page needs integer or string value"); + luaL_error(L, "img.page needs integer or string value"); } } else if (lua_key_eq(s,colorspace)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.colorspace is now read-only"); + luaL_error(L, "img.colorspace is now read-only"); } else if (t == LUA_TNIL) { img_colorspace(d) = 0; } else if (t == LUA_TNUMBER) { img_colorspace(d) = (int) lua_tointeger(L, -1); } else { - luaL_error(L, "image.colorspace needs integer or nil value"); + luaL_error(L, "img.colorspace needs integer or nil value"); } } else if (lua_key_eq(s,pagebox)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.pagebox is now read-only"); + luaL_error(L, "img.pagebox is now read-only"); } else if (t == LUA_TNIL) { img_pagebox(d) = PDF_BOX_SPEC_MEDIA; } else if (t == LUA_TNUMBER) { @@ -667,25 +672,29 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) } } } else { - luaL_error(L, "image.pagebox needs string, number or nil value"); + luaL_error(L, "img.pagebox needs string, number or nil value"); } } else if (lua_key_eq(s,keepopen)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.keepopen is now read-only"); + luaL_error(L, "img.keepopen is now read-only"); } else if (t != LUA_TBOOLEAN) { - luaL_error(L, "image.bbox needs boolean value"); + luaL_error(L, "img.bbox needs boolean value"); } else { img_keepopen(d) = lua_toboolean(L, -1); } } else if (lua_key_eq(s,nolength)) { img_nolength(d) = lua_toboolean(L, -1); + } else if (lua_key_eq(s,notype)) { + img_notype(d) = lua_toboolean(L, -1); + } else if (lua_key_eq(s,nobbox)) { + img_nobbox(d) = lua_toboolean(L, -1); } else if (lua_key_eq(s,bbox)) { if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.bbox is now read-only"); + luaL_error(L, "img.bbox is now read-only"); } else if (t != LUA_TTABLE) { - luaL_error(L, "image.bbox needs table value"); + luaL_error(L, "img.bbox needs table value"); } else if (lua_rawlen(L, -1) != 4) { - luaL_error(L, "image.bbox table must have exactly 4 elements"); + luaL_error(L, "img.bbox table must have exactly 4 elements"); } else { for (i = 1; i <= 4; i++) { /* v k t ... */ lua_pushinteger(L, i); /* idx v k t ... */ @@ -696,7 +705,7 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) } else if (t == LUA_TSTRING) { img_bbox(d)[i - 1] = dimen_to_number(L, lua_tostring(L, -1)); } else { - luaL_error(L, "image.bbox table needs integer value or dimension string elements"); + luaL_error(L, "img.bbox table needs integer value or dimension string elements"); } lua_pop(L, 1); /* v k t ... */ } @@ -704,9 +713,9 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) } } else if (lua_key_eq(s,stream)) { if (img_filename(d) != NULL) { - luaL_error(L, "image.stream can't be used with image.filename"); + luaL_error(L, "img.stream can't be used with image.filename"); } else if (img_state(d) >= DICT_FILESCANNED) { - luaL_error(L, "image.stream is now read-only"); + luaL_error(L, "img.stream is now read-only"); } else { size_t size = 0; const char *stream = lua_tolstring(L, -1, &size); @@ -720,7 +729,7 @@ static void lua_to_image(lua_State * L, image * a, image_dict * d) img_type(d) = IMG_TYPE_PDFSTREAM; } } else { - luaL_error(L, "image.%s can not be set", s); + luaL_error(L, "img.%s can not be set", s); } } diff --git a/Build/source/texk/web2c/luatexdir/lua/liolibext.c b/Build/source/texk/web2c/luatexdir/lua/liolibext.c index 71b9b41d12c..87bddbc887e 100644 --- a/Build/source/texk/web2c/luatexdir/lua/liolibext.c +++ b/Build/source/texk/web2c/luatexdir/lua/liolibext.c @@ -629,16 +629,18 @@ static int readintegertable_s(lua_State *L) { return 1; } +/* from ff */ + static int readfixed2(lua_State *L) { FILE *f = tofile(L); int a = getc(f); int b = getc(f); - if (b == EOF) + if (b == EOF) { lua_pushnil(L); - else if (a >= 0x80) - lua_pushinteger(L, (a - 0x100) + b/0x100); - else - lua_pushinteger(L, (a ) + b/0x100); + } else { + int n = 0x100 * a + b; + lua_pushnumber(L,(double) ((n>>8) + ((n&0xff)/256.0))); + } return 1; } @@ -651,10 +653,8 @@ static int readfixed2_s(lua_State *L) { } else { int a = uchar(s[p++]); int b = uchar(s[p]); - if (a >= 0x80) - lua_pushinteger(L, (a - 0x100) + b/0x100); - else - lua_pushinteger(L, (a ) + b/0x100); + int n = 0x100 * a + b; + lua_pushnumber(L,(double) ((n>>8) + ((n&0xff)/256.0))); } return 1; } @@ -665,15 +665,12 @@ static int readfixed4(lua_State *L) { int b = getc(f); int c = getc(f); int d = getc(f); - if (d == EOF) + if (d == EOF) { lua_pushnil(L); - else if (a >= 0x80) - lua_pushnumber(L, (0x100 * a + b - 0x10000) + (0x100 * c + d)/0x10000); - else - lua_pushnumber(L, (0x100 * a + b ) + (0x100 * c + d)/0x10000); - /* from ff */ - /* int n = 0x1000000 * a + 0x10000 * b + 0x100 * c + d; */ - /* lua_pushnumber(L,(real) (n>>16) + ((n&0xffff)/65536.0)); */ + } else { + int n = 0x1000000 * a + 0x10000 * b + 0x100 * c + d; + lua_pushnumber(L,(double) ((n>>16) + ((n&0xffff)/65536.0))); + } return 1; } @@ -688,10 +685,8 @@ static int readfixed4_s(lua_State *L) { int b = uchar(s[p++]); int c = uchar(s[p++]); int d = uchar(s[p]); - if (a >= 0x80) - lua_pushnumber(L, (0x100 * a + b - 0x10000) + (0x100 * c + d)/0x10000); - else - lua_pushnumber(L, (0x100 * a + b ) + (0x100 * c + d)/0x10000); + int n = 0x1000000 * a + 0x10000 * b + 0x100 * c + d; + lua_pushnumber(L,(double) ((n>>16) + ((n&0xffff)/65536.0))); } return 1; } @@ -705,7 +700,7 @@ static int read2dot14(lua_State *L) { } else { int n = 0x100 * a + b; /* from ff */ - lua_pushnumber(L,(real) ((n<<16)>>(16+14)) + ((n&0x3fff)/16384.0)); + lua_pushnumber(L,(double) (((n<<16)>>(16+14)) + ((n&0x3fff)/16384.0))); } return 1; } @@ -720,7 +715,7 @@ static int read2dot14_s(lua_State *L) { int a = uchar(s[p++]); int b = uchar(s[p]); int n = 0x100 * a + b; - lua_pushnumber(L,(real) ((n<<16)>>(16+14)) + ((n&0x3fff)/16384.0)); + lua_pushnumber(L,(double) (((n<<16)>>(16+14)) + ((n&0x3fff)/16384.0))); } return 1; } diff --git a/Build/source/texk/web2c/luatexdir/lua/llanglib.c b/Build/source/texk/web2c/luatexdir/lua/llanglib.c index 5855f33fc68..8f4e35f46e2 100644 --- a/Build/source/texk/web2c/luatexdir/lua/llanglib.c +++ b/Build/source/texk/web2c/luatexdir/lua/llanglib.c @@ -242,20 +242,22 @@ static int do_lang_clean(lua_State * L) static int do_lang_hyphenate(lua_State * L) { - halfword *h, *t, tt; - h = check_isnode(L, 1); + halfword t = null; + halfword h = *check_isnode(L, 1); if (lua_isuserdata(L, 2)) { - t = check_isnode(L, 2); - tt = *t; - lua_pop(L, 1); - } else { - tt = *h; - while (vlink(tt) != null) - tt = vlink(tt); + t = *check_isnode(L, 2); + } + if (t == null) { + t = h; + while (vlink(t) != null) { + t = vlink(t); + } } - hnj_hyphenation(*h, tt); + hnj_hyphenation(h, t); + lua_nodelib_push_fast(L, h); + lua_nodelib_push_fast(L, t); lua_pushboolean(L, 1); - return 1; + return 3; } static const struct luaL_Reg langlib_d[] = { diff --git a/Build/source/texk/web2c/luatexdir/lua/lnodelib.c b/Build/source/texk/web2c/luatexdir/lua/lnodelib.c index d8732df7605..dd794827646 100644 --- a/Build/source/texk/web2c/luatexdir/lua/lnodelib.c +++ b/Build/source/texk/web2c/luatexdir/lua/lnodelib.c @@ -817,7 +817,7 @@ static int lua_nodelib_direct_setlang(lua_State * L) static int lua_nodelib_direct_getattributelist(lua_State * L) { halfword n = lua_tointeger(L, 1); - if ((n) && nodetype_has_attributes(type(n))) { + if ((n) && nodetype_has_attributes(type(n)) && node_attr(n) != null) { lua_pushinteger(L, node_attr(n)); } else { lua_pushnil(L); @@ -998,12 +998,10 @@ static int lua_nodelib_direct_getkern(lua_State * L) if (n) { halfword t = type(n); if (t == kern_node) { + lua_pushnumber(L, width(n)); if (lua_toboolean(L,2)) { - lua_pushnumber(L, (1+ex_kern(n)/1000) * width(n)); lua_pushinteger(L, ex_kern(n)); return 2; - } else { - lua_pushinteger(L, width(n)); } } else if (t == margin_kern_node) { lua_pushinteger(L, width(n)); @@ -1141,25 +1139,38 @@ static int lua_nodelib_direct_setdirection(lua_State * L) static int lua_nodelib_direct_getoffsets(lua_State * L) { halfword n = lua_tointeger(L, 1); - if ((n) && (type(n) == glyph_node)) { - lua_pushinteger(L, x_displace(n)); - lua_pushinteger(L, y_displace(n)); - return 2; - } else { - lua_pushnil(L); + if (n) { + if (type(n) == glyph_node) { + lua_pushinteger(L, x_displace(n)); + lua_pushinteger(L, y_displace(n)); + return 2; + } else if (type(n) == rule_node) { + lua_pushinteger(L, rule_left(n)); + lua_pushinteger(L, rule_right(n)); + return 2; + } } - return 1; + return 0; } static int lua_nodelib_direct_setoffsets(lua_State * L) { halfword n = lua_tointeger(L, 1); - if ((n) && (type(n) == glyph_node)) { - if ((lua_type(L, 2) == LUA_TNUMBER)) { - x_displace(n) = (halfword) lua_roundnumber(L, 2); - } - if ((lua_type(L, 3) == LUA_TNUMBER)) { - y_displace(n) = (halfword) lua_roundnumber(L, 3); + if (n) { + if (type(n) == glyph_node) { + if (lua_type(L, 2) == LUA_TNUMBER) { + x_displace(n) = (halfword) lua_roundnumber(L, 2); + } + if (lua_type(L, 3) == LUA_TNUMBER) { + y_displace(n) = (halfword) lua_roundnumber(L, 3); + } + } else if (type(n) == rule_node) { + if (lua_type(L, 2) == LUA_TNUMBER) { + rule_left(n) = (halfword) lua_roundnumber(L, 2); + } + if (lua_type(L, 3) == LUA_TNUMBER) { + rule_right(n) = (halfword) lua_roundnumber(L, 3); + } } } return 0; @@ -1244,20 +1255,20 @@ static int lua_nodelib_direct_setdisc(lua_State * L) /* node.direct.getwhd */ /* node.direct.setwhd */ -#define push_list_whd(n) do { \ +# define push_list_whd(n) do { \ lua_pushinteger(L, width(n)); \ lua_pushinteger(L, height(n)); \ lua_pushinteger(L, depth(n)); \ } while (0) -#define push_char_whd(n) do { \ +# define push_char_whd(n) do { \ lua_pushinteger(L, char_width(font(n),character(n))); \ lua_pushinteger(L, char_height(font(n),character(n))); \ lua_pushinteger(L, char_depth(font(n),character(n))); \ } while (0) -#define push_char_ehd(n) do { \ - lua_pushnumber(L, (1+ex_glyph(n)/1000) * char_width(font(n),character(n))); \ +# define push_char_ehd(n) do { \ + lua_pushinteger(L, char_width(font(n),character(n))); \ lua_pushinteger(L, char_height(font(n),character(n))); \ lua_pushinteger(L, char_depth(font(n),character(n))); \ lua_pushinteger(L, ex_glyph(n)); \ @@ -1634,10 +1645,20 @@ static int lua_nodelib_direct_setleader(lua_State * L) write_tokens(n) = nodelib_gettoks(L, i); \ } while (0) -#define get_write_direct_value(L,n) do { \ +#define xget_write_direct_value(L,n) do { \ tokenlist_to_lua(L, write_tokens(n)); \ } while (0) +#define get_write_direct_value(L,n) do { \ + int l; \ + char *s; \ + expand_macros_in_tokenlist(n); \ + s = tokenlist_to_cstring(def_ref, 1, &l); \ + lua_pushlstring(L, s, (size_t) l); \ + free(s); \ + flush_list(def_ref); \ +} while (0) + #define set_pdf_setmatrix_direct_value(L,n,i) do { \ pdf_setmatrix_data(n) = nodelib_gettoks(L, i); \ } while (0) @@ -2484,9 +2505,15 @@ static int lua_nodelib_append(lua_State * L) for (i = 1; i <= j; i++) { n = *check_isnode(L, i); tail_append(n); + if (nodetype_has_attributes(type(n)) && node_attr(n) == null) { + build_attribute_list(n); + } while (vlink(n) != null) { n = vlink(n); tail_append(n); + if (nodetype_has_attributes(type(n)) && node_attr(n) == null) { + build_attribute_list(n); + } } } return 0; @@ -2504,9 +2531,15 @@ static int lua_nodelib_direct_append(lua_State * L) if (n != null) { m = n ; tail_append(m); + if (nodetype_has_attributes(type(n)) && node_attr(n) == null) { + build_attribute_list(n); + } while (vlink(m) != null) { m = vlink(m); tail_append(m); + if (nodetype_has_attributes(type(n)) && node_attr(n) == null) { + build_attribute_list(n); + } } } } @@ -3573,22 +3606,18 @@ static int lua_nodelib_direct_getwidth(lua_State * L) if (t == hlist_node || t == vlist_node || t == rule_node) { lua_pushinteger(L,width(n)); } else if (t == glyph_node) { + lua_pushnumber(L, char_width(font(n),character(n))); if (lua_toboolean(L,2)) { - lua_pushnumber(L, (1+ex_glyph(n)/1000) * char_width(font(n),character(n))); lua_pushinteger(L, ex_glyph(n)); return 2; - } else { - lua_pushinteger(L, char_width(font(n),character(n))); } } else if (t == glue_node || t == glue_spec_node || t == math_node || t == ins_node) { lua_pushinteger(L,width(n)); } else if (t == kern_node) { + lua_pushinteger(L, width(n)); if (lua_toboolean(L,2)) { - lua_pushnumber(L, (1+ex_kern(n)/1000) * width(n)); lua_pushinteger(L, ex_kern(n)); return 2; - } else { - lua_pushinteger(L, width(n)); } } else if (t == margin_kern_node) { lua_pushinteger(L,width(n)); @@ -4695,7 +4724,7 @@ static int lua_nodelib_fast_getfield(lua_State * L) } else if (lua_key_eq(s, depth)) { lua_pushinteger(L, depth(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, box_dir(n)); + lua_push_direction(L, box_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, box_dir(n)); } else if (lua_key_eq(s, shift)) { @@ -4774,7 +4803,7 @@ static int lua_nodelib_fast_getfield(lua_State * L) } else if (lua_key_eq(s, right)) { lua_pushinteger(L,rule_right(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, rule_dir(n)); + lua_push_direction(L, rule_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, rule_dir(n)); } else if (lua_key_eq(s, index)) { @@ -4786,7 +4815,7 @@ static int lua_nodelib_fast_getfield(lua_State * L) } } else if (t == dir_node) { if (lua_key_eq(s, direction)) { - lua_pushinteger(L, dir_dir(n)); + lua_push_direction(L, dir_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_text(L, dir_dir(n),subtype(n)); } else if (lua_key_eq(s, level)) { @@ -4802,7 +4831,7 @@ static int lua_nodelib_fast_getfield(lua_State * L) } else if (lua_key_eq(s, pen_broken)) { lua_pushinteger(L, local_pen_broken(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, local_par_dir(n)); + lua_push_direction(L, local_par_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, local_par_dir(n)); } else if (lua_key_eq(s, box_left)) { @@ -5105,7 +5134,7 @@ static int lua_nodelib_fast_getfield(lua_State * L) } else if (lua_key_eq(s, depth)) { lua_pushinteger(L, depth(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, box_dir(n)); + lua_push_direction(L, box_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, box_dir(n)); } else if (lua_key_eq(s, shrink)) { @@ -5450,7 +5479,7 @@ static int lua_nodelib_direct_getfield(lua_State * L) } else if (lua_key_eq(s, depth)) { lua_pushinteger(L, depth(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, box_dir(n)); + lua_push_direction(L, box_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, box_dir(n)); } else if (lua_key_eq(s, shift)) { @@ -5519,7 +5548,7 @@ static int lua_nodelib_direct_getfield(lua_State * L) } else if (lua_key_eq(s, right)) { lua_pushinteger(L,rule_right(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, rule_dir(n)); + lua_push_direction(L, rule_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, rule_dir(n)); } else if (lua_key_eq(s, index)) { @@ -5531,7 +5560,7 @@ static int lua_nodelib_direct_getfield(lua_State * L) } } else if (t == dir_node) { if (lua_key_eq(s, direction)) { - lua_pushinteger(L, dir_dir(n)); + lua_push_direction(L, dir_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_text(L, dir_dir(n), subtype(n)); } else if (lua_key_eq(s, level)) { @@ -5547,7 +5576,7 @@ static int lua_nodelib_direct_getfield(lua_State * L) } else if (lua_key_eq(s, pen_broken)) { lua_pushinteger(L, local_pen_broken(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, local_par_dir(n)); + lua_push_direction(L, local_par_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, local_par_dir(n)); } else if (lua_key_eq(s, box_left)) { @@ -5791,7 +5820,7 @@ static int lua_nodelib_direct_getfield(lua_State * L) } else if (lua_key_eq(s, depth)) { lua_pushinteger(L, depth(n)); } else if (lua_key_eq(s, direction)) { - lua_pushinteger(L, box_dir(n)); + lua_push_direction(L, box_dir(n)); } else if (lua_key_eq(s, dir)) { lua_push_dir_par(L, box_dir(n)); } else if (lua_key_eq(s, shrink)) { @@ -6045,6 +6074,51 @@ static int font_tex_direct_kerning(lua_State * L) return 3; } +/*tex + It's more consistent to have it here (so we will alias in lang later). Todo: + if no glyph then quit. +*/ + +static int lang_tex_hyphenating(lua_State * L) +{ + halfword t = null; + halfword h = *check_isnode(L, 1); + if (lua_isuserdata(L, 2)) { + t = *check_isnode(L, 2); + } + if (t == null) { + t = h; + while (vlink(t) != null) { + t = vlink(t); + } + } + hnj_hyphenation(h, t); + lua_nodelib_push_fast(L, h); + lua_nodelib_push_fast(L, t); + lua_pushboolean(L, 1); + return 3; +} + +static int lang_tex_direct_hyphenating(lua_State * L) +{ + halfword t = null; + halfword h = lua_tointeger(L, 1); + if (lua_type(L,1) != LUA_TNUMBER) { + t = lua_tointeger(L, 2); + } + if (t == null) { + t = h; + while (vlink(t) != null) { + t = vlink(t); + } + } + hnj_hyphenation(h, t); + lua_pushinteger(L, h); + lua_pushinteger(L, t); + lua_pushboolean(L, 1); + return 3; +} + /* node.protect_glyphs (returns also boolean because that signals callback) */ /* node.unprotect_glyphs (returns also boolean because that signals callback) */ @@ -8356,9 +8430,9 @@ static int lua_nodelib_effective_glue(lua_State * L) if ((glue == NULL) || (type(*glue) != glue_node)) { lua_pushnil(L) ; } else { - double w = width(*glue) ; parent = lua_touserdata(L, 2); if ((parent != NULL) && ((type(*parent) == hlist_node) || (type(*parent) == vlist_node))) { + double w = width(*glue) ; if ((int) glue_sign(*parent) == 1) { if (stretch_order(*glue) == glue_order(*parent)) { w += stretch(*glue) * (double) glue_set(*parent); @@ -8368,8 +8442,14 @@ static int lua_nodelib_effective_glue(lua_State * L) w -= shrink(*glue) * (double) glue_set(*parent); } } + if (lua_toboolean(L,3)) { + lua_pushinteger(L,round(w)); + } else { + lua_pushnumber(L,w); + } + } else { + lua_pushinteger(L,width(*glue)); } - lua_pushinteger(L,round(w)); } return 1; } @@ -8380,9 +8460,9 @@ static int lua_nodelib_direct_effective_glue(lua_State * L) if ((glue == null) || (type(glue) != glue_node)) { lua_pushnil(L) ; } else { - double w = (double) width(glue) ; halfword parent = lua_tointeger(L, 2); if ((parent != null) && ((type(parent) == hlist_node) || (type(parent) == vlist_node))) { + double w = (double) width(glue) ; if ((int)glue_sign(parent) == 1) { if (stretch_order(glue) == glue_order(parent)) { w += stretch(glue) * (double) glue_set(parent); @@ -8392,8 +8472,14 @@ static int lua_nodelib_direct_effective_glue(lua_State * L) w -= shrink(glue) * (double) glue_set(parent); } } + if (lua_toboolean(L,3)) { + lua_pushinteger(L,round(w)); + } else { + lua_pushnumber(L,w); + } + } else { + lua_pushinteger(L,width(glue)); } - lua_pushnumber(L,round(w)); } return 1; } @@ -8812,6 +8898,7 @@ static const struct luaL_Reg direct_nodelib_f[] = { {"is_glyph", lua_nodelib_direct_is_glyph}, {"uses_font", lua_nodelib_direct_uses_font}, {"hpack", lua_nodelib_direct_hpack}, + {"hyphenating", lang_tex_direct_hyphenating}, /* {"id", lua_nodelib_id}, */ /* no node argument */ {"insert_after", lua_nodelib_direct_insert_after}, {"insert_before", lua_nodelib_direct_insert_before}, @@ -8942,6 +9029,7 @@ static const struct luaL_Reg nodelib_f[] = { {"is_glyph", lua_nodelib_is_glyph}, {"uses_font", lua_nodelib_uses_font}, {"hpack", lua_nodelib_hpack}, + {"hyphenating", lang_tex_hyphenating}, {"id", lua_nodelib_id}, {"insert_after", lua_nodelib_insert_after}, {"insert_before", lua_nodelib_insert_before}, diff --git a/Build/source/texk/web2c/luatexdir/lua/lpdfelib.c b/Build/source/texk/web2c/luatexdir/lua/lpdfelib.c index 31fad9f632d..dc09d347aad 100644 --- a/Build/source/texk/web2c/luatexdir/lua/lpdfelib.c +++ b/Build/source/texk/web2c/luatexdir/lua/lpdfelib.c @@ -1,11 +1,30 @@ +/* loslibext.c + + This file is part of LuaTeX. + + LuaTeX is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any later + version. + + LuaTeX is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more + details. + + You should have received a copy of the GNU General Public License along with + LuaTeX; if not, see <http://www.gnu.org/licenses/>. + +*/ + /*tex - This file will host the encapsulated \PDF\ support code used for inclusion - and access from \LUA. + This file hosts the encapsulated \PDF\ support code used for inclusion and + access from \LUA. */ -#include "ptexlib.h" +# include "ptexlib.h" /*tex @@ -13,34 +32,34 @@ */ -#undef lpdfelib_orig_input -#undef lpdfelib_orig_output +# undef lpdfelib_orig_input +# undef lpdfelib_orig_output -#ifdef input -#define lpdfelib_orig_input input -#undef input -#endif +# ifdef input +# define lpdfelib_orig_input input +# undef input +# endif -#ifdef output -#define lpdfelib_orig_output output -#undef output -#endif +# ifdef output +# define lpdfelib_orig_output output +# undef output +# endif -#include "luapplib/pplib.h" +# include "luapplib/pplib.h" -#include "image/epdf.h" +# include "image/epdf.h" -#ifdef lpdfelib_orig_input -#define input lpdfelib_orig_input -#undef lpdfelib_orig_input -#endif +# ifdef lpdfelib_orig_input +# define input lpdfelib_orig_input +# undef lpdfelib_orig_input +# endif -#ifdef lpdfelib_orig_output -#define output lpdfelib_orig_output -#undef lpdfelib_orig_output -#endif +# ifdef lpdfelib_orig_output +# define output lpdfelib_orig_output +# undef lpdfelib_orig_output +# endif -#include "lua/luatex-api.h" +# include "lua/luatex-api.h" /*tex @@ -50,11 +69,11 @@ */ -#define PDFE_METATABLE "luatex.pdfe" -#define PDFE_METATABLE_DICTIONARY "luatex.pdfe.dictionary" -#define PDFE_METATABLE_ARRAY "luatex.pdfe.array" -#define PDFE_METATABLE_STREAM "luatex.pdfe.stream" -#define PDFE_METATABLE_REFERENCE "luatex.pdfe.reference" +# define PDFE_METATABLE "luatex.pdfe" +# define PDFE_METATABLE_DICTIONARY "luatex.pdfe.dictionary" +# define PDFE_METATABLE_ARRAY "luatex.pdfe.array" +# define PDFE_METATABLE_STREAM "luatex.pdfe.stream" +# define PDFE_METATABLE_REFERENCE "luatex.pdfe.reference" typedef struct { ppdoc *document; @@ -67,23 +86,22 @@ typedef struct { typedef struct { ppdict *dictionary; - ppref *ref; } pdfe_dictionary; typedef struct { pparray *array; - ppref *ref; } pdfe_array; typedef struct { ppstream *stream; - ppref *ref; int decode; int open; } pdfe_stream; typedef struct { - ppref *reference; + /* ppref *reference; */ + ppxref *xref; + int onum; } pdfe_reference; /*tex @@ -194,7 +212,7 @@ static pdfe_reference *check_isreference(lua_State * L, int n) */ -#define check_type(field,meta,name) do { \ +# define check_type(field,meta,name) do { \ lua_get_metatablelua(luatex_##meta); \ if (lua_rawequal(L, -1, -2)) { \ lua_pushstring(L,name); \ @@ -223,7 +241,7 @@ static int pdfelib_type(lua_State * L) */ -#define define_to_string(field,what) \ +# define define_to_string(field,what) \ static int pdfelib_tostring_##field(lua_State * L) { \ pdfe_##field *p = check_is##field(L, 1); \ if (p != NULL) { \ @@ -236,9 +254,17 @@ static int pdfelib_tostring_##field(lua_State * L) { \ define_to_string(document, "pdfe") define_to_string(dictionary,"pdfe.dictionary") define_to_string(array, "pdfe.array") -define_to_string(reference, "pdfe.reference") define_to_string(stream, "pdfe.stream") +static int pdfelib_tostring_reference(lua_State * L) { \ + pdfe_reference *p = check_isreference(L, 1); \ + if (p != NULL) { \ + lua_pushfstring(L, "<pdfe.reference " "%i>", p->onum); \ + return 1; \ + } \ + return 0; \ +} + /*tex The pushers look rather similar. We have two variants, one that just pushes @@ -246,7 +272,7 @@ define_to_string(stream, "pdfe.stream") */ -#define pdfe_push_dictionary do { \ +# define pdfe_push_dictionary do { \ pdfe_dictionary *d = (pdfe_dictionary *)lua_newuserdata(L, sizeof(pdfe_dictionary)); \ luaL_getmetatable(L, PDFE_METATABLE_DICTIONARY); \ lua_setmetatable(L, -2); \ @@ -272,7 +298,7 @@ static int pushdictionaryonly(lua_State * L, ppdict *dictionary) return 0; } -#define pdfe_push_array do { \ +# define pdfe_push_array do { \ pdfe_array *a = (pdfe_array *)lua_newuserdata(L, sizeof(pdfe_array)); \ luaL_getmetatable(L, PDFE_METATABLE_ARRAY); \ lua_setmetatable(L, -2); \ @@ -298,7 +324,7 @@ static int pusharrayonly(lua_State * L, pparray * array) return 0; } -#define pdfe_push_stream do { \ +# define pdfe_push_stream do { \ pdfe_stream *s = (pdfe_stream *)lua_newuserdata(L, sizeof(pdfe_stream)); \ luaL_getmetatable(L, PDFE_METATABLE_STREAM); \ lua_setmetatable(L, -2); \ @@ -331,11 +357,12 @@ static int pushstreamonly(lua_State * L, ppstream * stream) return 0; } -#define pdfe_push_reference do { \ +# define pdfe_push_reference do { \ pdfe_reference *r = (pdfe_reference *)lua_newuserdata(L, sizeof(pdfe_reference)); \ luaL_getmetatable(L, PDFE_METATABLE_REFERENCE); \ lua_setmetatable(L, -2); \ - r->reference = reference; \ + r->xref = reference->xref; \ + r->onum = reference->number; \ } while (0) static int pushreference(lua_State * L, ppref * reference) @@ -709,9 +736,11 @@ static int pdfelib_readwholestream(lua_State * L) Alternatively streams can be fetched stepwise: + \starttyping okay = openstream(streamobject,[decode]) string, n = readfromstream(streamobject) closestream(streamobject) + \stoptyping */ @@ -1130,7 +1159,7 @@ static int pdfelib_getfromreference(lua_State * L) { pdfe_reference *r = check_isreference(L, 1); if (r != NULL) { - ppobj *o = ppref_obj(r->reference); + ppobj *o = ppref_obj(ppxref_find(r->xref, (ppuint) r->onum)); lua_pushinteger(L,o->type); return 1 + pushvalue(L,o); } @@ -1158,7 +1187,7 @@ static int pdfelib_getfromreference(lua_State * L) */ -#define pdfelib_get_value_check_1 do { \ +# define pdfelib_get_value_check_1 do { \ if (p == NULL) { \ if (t == LUA_TSTRING) { \ normal_warning("pdfe lib","lua <pdfe dictionary> expected"); \ @@ -1173,7 +1202,7 @@ static int pdfelib_getfromreference(lua_State * L) } \ } while (0) -#define pdfelib_get_value_check_2 \ +# define pdfelib_get_value_check_2 \ normal_warning("pdfe lib","second argument should be integer or string"); /*tex @@ -1183,7 +1212,11 @@ static int pdfelib_getfromreference(lua_State * L) */ -#define pdfelib_get_value_direct(get_d,get_a) do { \ +# define pdfelib_get_indirect_o(p) \ + ppref *r = ppxref_find(((pdfe_reference *) p)->xref, (ppuint) (((pdfe_reference *) p)->onum)); \ + ppobj *o = ppref_obj(r); \ + +# define pdfelib_get_value_direct(get_d,get_a) do { \ int t = lua_type(L,2); \ void *p = lua_touserdata(L, 1); \ pdfelib_get_value_check_1; \ @@ -1196,7 +1229,7 @@ static int pdfelib_getfromreference(lua_State * L) lua_pop(L,1); \ lua_get_metatablelua(luatex_pdfe_reference); \ if (lua_rawequal(L, -1, -2)) { \ - ppobj * o = ppref_obj((ppref *) (((pdfe_reference *) p)->reference)); \ + pdfelib_get_indirect_o(p); \ if (o != NULL && o->type == PPDICT) { \ value = get_d((ppdict *)o->dict, key); \ } \ @@ -1211,7 +1244,7 @@ static int pdfelib_getfromreference(lua_State * L) lua_pop(L,1); \ lua_get_metatablelua(luatex_pdfe_reference); \ if (lua_rawequal(L, -1, -2)) { \ - ppobj * o = ppref_obj((ppref *) (((pdfe_reference *) p)->reference)); \ + pdfelib_get_indirect_o(p); \ if (o != NULL && o->type == PPARRAY) { \ value = get_a((pparray *) o->array, index); \ } \ @@ -1229,7 +1262,7 @@ static int pdfelib_getfromreference(lua_State * L) */ -#define pdfelib_get_value_indirect(get_d,get_a) do { \ +# define pdfelib_get_value_indirect(get_d,get_a) do { \ int t = lua_type(L,2); \ void *p = lua_touserdata(L, 1); \ pdfelib_get_value_check_1; \ @@ -1242,7 +1275,7 @@ static int pdfelib_getfromreference(lua_State * L) lua_pop(L,1); \ lua_get_metatablelua(luatex_pdfe_reference); \ if (lua_rawequal(L, -1, -2)) { \ - ppobj * o = ppref_obj((ppref *) (((pdfe_reference *) p)->reference)); \ + pdfelib_get_indirect_o(p); \ if (o != NULL && o->type == PPDICT) \ okay = get_d(o->dict, key, &value); \ } \ @@ -1256,7 +1289,7 @@ static int pdfelib_getfromreference(lua_State * L) lua_pop(L,1); \ lua_get_metatablelua(luatex_pdfe_reference); \ if (lua_rawequal(L, -1, -2)) { \ - ppobj * o = ppref_obj((ppref *) (((pdfe_reference *) p)->reference)); \ + pdfelib_get_indirect_o(p); \ if (o != NULL && o->type == PPARRAY) \ okay = get_a(o->array, index, &value); \ } \ @@ -1523,8 +1556,8 @@ static int pdfelib_stream_size(lua_State * L) /*tex - We now initialize the main interface. We might aa few more - informational helpers but this is it. + We now initialize the main interface. We might add few more informational + helpers but this is it. */ diff --git a/Build/source/texk/web2c/luatexdir/lua/lpdflib.c b/Build/source/texk/web2c/luatexdir/lua/lpdflib.c index d8e051f3fd0..669fa1f2fbc 100644 --- a/Build/source/texk/web2c/luatexdir/lua/lpdflib.c +++ b/Build/source/texk/web2c/luatexdir/lua/lpdflib.c @@ -1242,6 +1242,19 @@ static int getpdfnofobjects(lua_State * L) return 2; } +/*tex + + The following option is not official and needs testing anyway. It's a + prelude a followup where the dependencies are limited. + +*/ + +static int settypeonewidemode(lua_State * L) +{ + t1_wide_mode = lua_tointeger(L,1); + return 0; +} + /*tex For normal output see |pdflistout.c|: */ static const struct luaL_Reg pdflib[] = { @@ -1342,6 +1355,8 @@ static const struct luaL_Reg pdflib[] = { { "fontobjnum", getpdffontobjnum }, { "fontsize", getpdffontsize }, { "xformname", getpdfxformname }, + /* experimental */ + { "settypeonewidemode", settypeonewidemode}, /* sentinel */ {NULL, NULL} }; diff --git a/Build/source/texk/web2c/luatexdir/lua/luatex-api.h b/Build/source/texk/web2c/luatexdir/lua/luatex-api.h index 399dccb04f2..c662e76b983 100644 --- a/Build/source/texk/web2c/luatexdir/lua/luatex-api.h +++ b/Build/source/texk/web2c/luatexdir/lua/luatex-api.h @@ -133,6 +133,7 @@ extern int luaopen_stats(lua_State * L); extern int luaopen_font(lua_State * L); extern int luaopen_vf(lua_State * L); +extern int font_parameters_to_lua(lua_State * L, int f); extern int font_to_lua(lua_State * L, int f); extern int font_from_lua(lua_State * L, int f); /* return is boolean */ extern int characters_from_lua(lua_State * L, int f); /* return is boolean */ @@ -661,11 +662,15 @@ make_lua_key(def_font);\ make_lua_key(def_lua_call);\ make_lua_key(degree);\ make_lua_key(delim);\ +make_lua_key(delimiter);\ +make_lua_key(hdelimiter);\ +make_lua_key(vdelimiter);\ make_lua_key(delim_num);\ make_lua_key(delimptr);\ make_lua_key(delta);\ make_lua_key(demerits);\ make_lua_key(denom);\ +make_lua_key(denominator);\ make_lua_key(depth);\ make_lua_key(designsize);\ make_lua_key(dest_id);\ @@ -714,6 +719,8 @@ make_lua_key(extdef_math_code);\ make_lua_key(extend);\ make_lua_key(extender);\ make_lua_key(extensible);\ +make_lua_key(hextensible);\ +make_lua_key(vextensible);\ make_lua_key(extension);\ make_lua_key(extra_space);\ make_lua_key(fam);\ @@ -863,6 +870,7 @@ make_lua_key(marginkern);\ make_lua_key(mark);\ make_lua_key(math);\ make_lua_key(math_accent);\ +make_lua_key(mathchar);\ make_lua_key(math_char);\ make_lua_key(math_char_num);\ make_lua_key(math_choice);\ @@ -905,7 +913,9 @@ make_lua_key(new_graf);\ make_lua_key(new_window);\ make_lua_key(next);\ make_lua_key(no);\ +make_lua_key(nobbox);\ make_lua_key(nolength);\ +make_lua_key(notype);\ make_lua_key(no_align);\ make_lua_key(no_expand);\ make_lua_key(no_super_sub_script);\ @@ -924,11 +934,13 @@ make_lua_key(normal);\ make_lua_key(novrule);\ make_lua_key(nucleus);\ make_lua_key(num);\ +make_lua_key(numerator);\ make_lua_key(number);\ make_lua_key(objcompression);\ make_lua_key(objnum);\ make_lua_key(oldmath);\ make_lua_key(omit);\ +make_lua_key(limits);\ make_lua_key(opdisplaylimits);\ make_lua_key(open);\ make_lua_key(oplimits);\ @@ -944,6 +956,7 @@ make_lua_key(outer_call);\ make_lua_key(outline);\ make_lua_key(output);\ make_lua_key(over);\ +make_lua_key(overdelimiter);\ make_lua_key(overlay_accent);\ make_lua_key(ownerpassword);\ make_lua_key(page);\ @@ -1046,6 +1059,7 @@ make_lua_key(rule);\ make_lua_key(save_pos);\ make_lua_key(scale);\ make_lua_key(script);\ +make_lua_key(scripts);\ make_lua_key(scriptscript);\ make_lua_key(second);\ make_lua_key(semi_simple);\ @@ -1155,6 +1169,7 @@ make_lua_key(un_hbox);\ make_lua_key(un_vbox);\ make_lua_key(undefined_cs);\ make_lua_key(under);\ +make_lua_key(underdelimiter);\ make_lua_key(unhyphenated);\ make_lua_key(units_per_em);\ make_lua_key(unknown);\ @@ -1351,11 +1366,15 @@ init_lua_key(def_font);\ init_lua_key(def_lua_call);\ init_lua_key(degree);\ init_lua_key(delim);\ +init_lua_key(delimiter);\ +init_lua_key(hdelimiter);\ +init_lua_key(vdelimiter);\ init_lua_key(delim_num);\ init_lua_key(delimptr);\ init_lua_key(delta);\ init_lua_key(demerits);\ init_lua_key(denom);\ +init_lua_key(denominator);\ init_lua_key(depth);\ init_lua_key(designsize);\ init_lua_key(dest_id);\ @@ -1403,6 +1422,8 @@ init_lua_key(extdef_math_code);\ init_lua_key(extend);\ init_lua_key(extender);\ init_lua_key(extensible);\ +init_lua_key(hextensible);\ +init_lua_key(vextensible);\ init_lua_key(extension);\ init_lua_key(extra_space);\ init_lua_key(fam);\ @@ -1552,6 +1573,7 @@ init_lua_key(marginkern);\ init_lua_key(mark);\ init_lua_key(math);\ init_lua_key(math_accent);\ +init_lua_key(mathchar);\ init_lua_key(math_char);\ init_lua_key(math_char_num);\ init_lua_key(math_choice);\ @@ -1590,7 +1612,9 @@ init_lua_key(new_graf);\ init_lua_key(new_window);\ init_lua_key(next);\ init_lua_key(no);\ +init_lua_key(nobbox);\ init_lua_key(nolength);\ +init_lua_key(notype);\ init_lua_key(no_align);\ init_lua_key(no_expand);\ init_lua_key(no_super_sub_script);\ @@ -1607,11 +1631,13 @@ init_lua_key(normal);\ init_lua_key(novrule);\ init_lua_key(nucleus);\ init_lua_key(num);\ +init_lua_key(numerator);\ init_lua_key(number);\ init_lua_key(objcompression);\ init_lua_key(objnum);\ init_lua_key(oldmath);\ init_lua_key(omit);\ +init_lua_key(limits);\ init_lua_key(opdisplaylimits);\ init_lua_key(open);\ init_lua_key(oplimits);\ @@ -1627,6 +1653,7 @@ init_lua_key(outer_call);\ init_lua_key(outline);\ init_lua_key(output);\ init_lua_key(over);\ +init_lua_key(overdelimiter);\ init_lua_key(overlay_accent);\ init_lua_key(ownerpassword);\ init_lua_key(page);\ @@ -1723,6 +1750,7 @@ init_lua_key(rule);\ init_lua_key(save_pos);\ init_lua_key(scale);\ init_lua_key(script);\ +init_lua_key(scripts);\ init_lua_key(scriptscript);\ init_lua_key(second);\ init_lua_key(semi_simple);\ @@ -1831,6 +1859,7 @@ init_lua_key(un_hbox);\ init_lua_key(un_vbox);\ init_lua_key(undefined_cs);\ init_lua_key(under);\ +init_lua_key(underdelimiter);\ init_lua_key(unhyphenated);\ init_lua_key(units_per_em);\ init_lua_key(unknown);\ @@ -2090,11 +2119,15 @@ use_lua_key(def_font); use_lua_key(def_lua_call); use_lua_key(degree); use_lua_key(delim); +use_lua_key(delimiter); +use_lua_key(hdelimiter); +use_lua_key(vdelimiter); use_lua_key(delim_num); use_lua_key(delimptr); use_lua_key(delta); use_lua_key(demerits); use_lua_key(denom); +use_lua_key(denominator); use_lua_key(depth); use_lua_key(designsize); use_lua_key(dest_id); @@ -2143,6 +2176,8 @@ use_lua_key(extdef_math_code); use_lua_key(extend); use_lua_key(extender); use_lua_key(extensible); +use_lua_key(hextensible); +use_lua_key(vextensible); use_lua_key(extension); use_lua_key(extra_space); use_lua_key(fam); @@ -2292,6 +2327,7 @@ use_lua_key(marginkern); use_lua_key(mark); use_lua_key(math); use_lua_key(math_accent); +use_lua_key(mathchar); use_lua_key(math_char); use_lua_key(math_char_num); use_lua_key(math_choice); @@ -2334,7 +2370,9 @@ use_lua_key(new_graf); use_lua_key(new_window); use_lua_key(next); use_lua_key(no); +use_lua_key(nobbox); use_lua_key(nolength); +use_lua_key(notype); use_lua_key(no_align); use_lua_key(no_expand); use_lua_key(no_super_sub_script); @@ -2353,11 +2391,13 @@ use_lua_key(normal); use_lua_key(novrule); use_lua_key(nucleus); use_lua_key(num); +use_lua_key(numerator); use_lua_key(number); use_lua_key(objcompression); use_lua_key(objnum); use_lua_key(oldmath); use_lua_key(omit); +use_lua_key(limits); use_lua_key(opdisplaylimits); use_lua_key(open); use_lua_key(oplimits); @@ -2373,6 +2413,7 @@ use_lua_key(outer_call); use_lua_key(outline); use_lua_key(output); use_lua_key(over); +use_lua_key(overdelimiter); use_lua_key(overlay_accent); use_lua_key(ownerpassword); use_lua_key(page); @@ -2475,6 +2516,7 @@ use_lua_key(rule); use_lua_key(save_pos); use_lua_key(scale); use_lua_key(script); +use_lua_key(scripts); use_lua_key(scriptscript); use_lua_key(second); use_lua_key(semi_simple); @@ -2584,6 +2626,7 @@ use_lua_key(un_hbox); use_lua_key(un_vbox); use_lua_key(undefined_cs); use_lua_key(under); +use_lua_key(underdelimiter); use_lua_key(unhyphenated); use_lua_key(units_per_em); use_lua_key(unknown); diff --git a/Build/source/texk/web2c/luatexdir/lua/luatex-core.c b/Build/source/texk/web2c/luatexdir/lua/luatex-core.c index 5cb58af6513..386023d970b 100644 --- a/Build/source/texk/web2c/luatexdir/lua/luatex-core.c +++ b/Build/source/texk/web2c/luatexdir/lua/luatex-core.c @@ -129,507 +129,509 @@ int load_luatex_core_lua (lua_State * L) 0x0a, 0x65, 0x6e, 0x64, 0x0a, 0x0a, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x20, 0x66, 0x75, 0x6e, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x6c, 0x75, 0x61, 0x74, 0x65, 0x78, 0x5f, 0x69, 0x6f, 0x5f, 0x6f, 0x70, 0x65, 0x6e, 0x5f, 0x72, 0x65, 0x61, 0x64, 0x6f, 0x6e, 0x6c, 0x79, 0x28, 0x6e, 0x61, 0x6d, - 0x65, 0x2c, 0x68, 0x6f, 0x77, 0x29, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x69, 0x66, 0x20, 0x68, 0x6f, - 0x77, 0x20, 0x74, 0x68, 0x65, 0x6e, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x68, - 0x6f, 0x77, 0x20, 0x3d, 0x20, 0x27, 0x72, 0x27, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x65, 0x6c, 0x73, - 0x65, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x68, 0x6f, 0x77, 0x20, 0x3d, 0x20, - 0x67, 0x73, 0x75, 0x62, 0x28, 0x68, 0x6f, 0x77, 0x2c, 0x27, 0x5b, 0x5e, 0x72, 0x62, 0x5d, 0x27, - 0x2c, 0x27, 0x27, 0x29, 0x0a, 0x20, 0x20, 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\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/lua/luatex-core.lua b/Build/source/texk/web2c/luatexdir/lua/luatex-core.lua index f2d55fd99b3..5ed425a9910 100644 --- a/Build/source/texk/web2c/luatexdir/lua/luatex-core.lua +++ b/Build/source/texk/web2c/luatexdir/lua/luatex-core.lua @@ -1,465 +1,466 @@ --- luatex-core security and io overloads ...........
-
--- if not modules then modules = { } end modules ['luatex-core'] = {
--- version = 1.080,
--- comment = 'companion to luatex',
--- author = 'Hans Hagen & Luigi Scarso',
--- copyright = 'LuaTeX Development Team',
--- }
-
-LUATEXCOREVERSION = 1.080 -- we reflect the luatex version where changes happened
-
--- This file overloads some Lua functions. The readline variants provide the same
--- functionality as LuaTeX <= 1.04 and doing it this way permits us to keep the
--- original io libraries clean. Performance is probably even a bit better now.
-
--- We test for functions already being defined so that we don't overload ones that
--- are provided in the startup script.
-
-local type, next, getmetatable, require = type, next, getmetatable, require
-local find, gsub, format = string.find, string.gsub, string.format
-
-local io_open = io.open
-local io_popen = io.popen
-local io_lines = io.lines
-
-local fio_readline = fio.readline
-local fio_checkpermission = fio.checkpermission
-local fio_recordfilename = fio.recordfilename
-
-local mt = getmetatable(io.stderr)
-local mt_lines = mt.lines
-local saferoption = status.safer_option
-local shellescape = status.shell_escape -- 0 (disabled) 1 (anything) 2 (restricted)
-local kpseused = status.kpse_used -- 0 1
-
-local write_nl = texio.write_nl
-
-io.saved_lines = io_lines -- always readonly
-mt.saved_lines = mt_lines -- always readonly
-
-local function luatex_io_open(name,how)
- if not how then
- how = 'r'
- end
- local f = io_open(name,how)
- if f then
- if type(how) == 'string' and find(how,'w') then
- fio_recordfilename(name,'w')
- else
- fio_recordfilename(name,'r')
- end
- end
- return f
-end
-
-local function luatex_io_open_readonly(name,how)
- if how then
- how = 'r'
- else
- how = gsub(how,'[^rb]','')
- if how == '' then
- how = 'r'
- end
- end
- local f = io_open(name,how)
- if f then
- fio_recordfilename(name,'r')
- end
- return f
-end
-
-local function luatex_io_popen(name,...)
- local okay, found = fio_checkpermission(name)
- if okay and found then
- return io_popen(found,...)
- end
-end
-
--- local function luatex_io_lines(name,how)
--- if name then
--- local f = io_open(name,how or 'r')
--- if f then
--- return function()
--- return fio_readline(f)
--- end
--- end
--- else
--- return io_lines()
--- end
--- end
-
--- For some reason the gc doesn't kick in so we need to close explitly
--- so that the handle is flushed.
-
-local error, type = error, type
-
-local function luatex_io_lines(name,how)
- if type(name) == "string" then
- local f = io_open(name,how or 'r')
- if f then
- return function()
- local l = fio_readline(f)
- if not l then
- f:close()
- end
- return l
- end
- else
- -- for those who like it this way:
- error("patched 'io.lines' can't open '" .. name .. "'")
- end
- else
- return io_lines()
- end
-end
-
-local function luatex_io_readline(f)
- return function()
- return fio_readline(f)
- end
-end
-
-io.lines = luatex_io_lines
-mt.lines = luatex_io_readline
-
--- We assume management to be provided by the replacement of kpse. This is the
--- case in ConTeXt.
-
-if kpseused == 1 then
-
- io.open = luatex_io_open
- io.popen = luatex_io_popen
-
-end
-
-if saferoption == 1 then
-
- local function installdummy(str,f)
- local reported = false
- return function(...)
- if not reported then
- write_nl(format("safer option set, function %q is %s",
- str,f and "limited" or "disabled"))
- reported = true
- end
- if f then
- return f(...)
- end
- end
- end
-
- local function installlimit(str,f)
- local reported = false
- end
-
- os.execute = installdummy("os.execute")
- os.spawn = installdummy("os.spawn")
- os.exec = installdummy("os.exec")
- os.setenv = installdummy("os.setenv")
- os.tempdir = installdummy("os.tempdir")
-
- io.popen = installdummy("io.popen")
- io.open = installdummy("io.open",luatex_io_open_readonly)
-
- os.rename = installdummy("os.rename")
- os.remove = installdummy("os.remove")
-
- io.tmpfile = installdummy("io.tmpfile")
- io.output = installdummy("io.output")
-
- lfs.chdir = installdummy("lfs.chdir")
- lfs.lock = installdummy("lfs.lock")
- lfs.touch = installdummy("lfs.touch")
- lfs.rmdir = installdummy("lfs.rmdir")
- lfs.mkdir = installdummy("lfs.mkdir")
-
-end
-
-if saferoption == 1 or shellescape ~= 1 then
-
- ffi = require('ffi')
- for k, v in next, ffi do
- if k ~= 'gc' then
- ffi[k] = nil
- end
- end
- ffi = nil
-
-end
-
--- os.[execute|os.spawn|os.exec] already are shellescape aware)
-
-
-if md5 then
-
- local sum = md5.sum
- local gsub = string.gsub
- local format = string.format
- local byte = string.byte
-
- if not md5.sumhexa then
- function md5.sumhexa(k)
- return (gsub(sum(k), ".", function(c)
- return format("%02x",byte(c))
- end))
- end
- end
-
- if not md5.sumHEXA then
- function md5.sumHEXA(k)
- return (gsub(sum(k), ".", function(c)
- return format("%02X",byte(c))
- end))
- end
- end
-
-end
-
--- compatibility: this might go away
-
-if not unpack then
- unpack = table.unpack
-end
-
-if not package.loaders then
- package.loaders = package.searchers
-end
-
-if not loadstring then
- loadstring = load
-end
-
--- compatibility: this might stay
-
-if bit32 then
-
- -- lua 5.2: we're okay
-
-elseif utf8 then
-
- -- lua 5.3: bitwise.lua, v 1.24 2014/12/26 17:20:53 roberto
-
- bit32 = load ( [[
-local select = select -- instead of: arg = { ... }
-
-bit32 = {
- bnot = function (a)
- return ~a & 0xFFFFFFFF
- end,
- band = function (x, y, z, ...)
- if not z then
- return ((x or -1) & (y or -1)) & 0xFFFFFFFF
- else
- local res = x & y & z
- for i=1,select("#",...) do
- res = res & select(i,...)
- end
- return res & 0xFFFFFFFF
- end
- end,
- bor = function (x, y, z, ...)
- if not z then
- return ((x or 0) | (y or 0)) & 0xFFFFFFFF
- else
- local res = x | y | z
- for i=1,select("#",...) do
- res = res | select(i,...)
- end
- return res & 0xFFFFFFFF
- end
- end,
- bxor = function (x, y, z, ...)
- if not z then
- return ((x or 0) ~ (y or 0)) & 0xFFFFFFFF
- else
- local res = x ~ y ~ z
- for i=1,select("#",...) do
- res = res ~ select(i,...)
- end
- return res & 0xFFFFFFFF
- end
- end,
- btest = function (x, y, z, ...)
- if not z then
- return (((x or -1) & (y or -1)) & 0xFFFFFFFF) ~= 0
- else
- local res = x & y & z
- for i=1,select("#",...) do
- res = res & select(i,...)
- end
- return (res & 0xFFFFFFFF) ~= 0
- end
- end,
- lshift = function (a, b)
- return ((a & 0xFFFFFFFF) << b) & 0xFFFFFFFF
- end,
- rshift = function (a, b)
- return ((a & 0xFFFFFFFF) >> b) & 0xFFFFFFFF
- end,
- arshift = function (a, b)
- a = a & 0xFFFFFFFF
- if b <= 0 or (a & 0x80000000) == 0 then
- return (a >> b) & 0xFFFFFFFF
- else
- return ((a >> b) | ~(0xFFFFFFFF >> b)) & 0xFFFFFFFF
- end
- end,
- lrotate = function (a ,b)
- b = b & 31
- a = a & 0xFFFFFFFF
- a = (a << b) | (a >> (32 - b))
- return a & 0xFFFFFFFF
- end,
- rrotate = function (a, b)
- b = -b & 31
- a = a & 0xFFFFFFFF
- a = (a << b) | (a >> (32 - b))
- return a & 0xFFFFFFFF
- end,
- extract = function (a, f, w)
- return (a >> f) & ~(-1 << (w or 1))
- end,
- replace = function (a, v, f, w)
- local mask = ~(-1 << (w or 1))
- return ((a & ~(mask << f)) | ((v & mask) << f)) & 0xFFFFFFFF
- end,
-}
- ]] )
-
-elseif bit then
-
- -- luajit (for now)
-
- bit32 = load ( [[
-local band, bnot, rshift, lshift = bit.band, bit.bnot, bit.rshift, bit.lshift
-
-bit32 = {
- arshift = bit.arshift,
- band = band,
- bnot = bnot,
- bor = bit.bor,
- bxor = bit.bxor,
- btest = function(...)
- return band(...) ~= 0
- end,
- extract = function(a,f,w)
- return band(rshift(a,f),2^(w or 1)-1)
- end,
- lrotate = bit.rol,
- lshift = lshift,
- replace = function(a,v,f,w)
- local mask = 2^(w or 1)-1
- return band(a,bnot(lshift(mask,f)))+lshift(band(v,mask),f)
- end,
- rrotate = bit.ror,
- rshift = rshift,
-}
- ]] )
-
-else
-
- -- hope for the best or fail
-
- bit32 = require("bit32")
-
-end
-
--- this is needed for getting require("socket") right
-
-do
-
- local loaded = package.loaded
-
- if not loaded.socket then loaded.socket = loaded["socket.core"] end
- if not loaded.mime then loaded.mime = loaded["mime.core"] end
-
-end
-
-do
-
- local lfsattributes = lfs.attributes
- local symlinkattributes = lfs.symlinkattributes
-
- -- these can now be done using lfs (was dead slow before)
-
- if not lfs.isfile then
- function lfs.isfile(name)
- local m = lfsattributes(name,"mode")
- return m == "file" or m == "link"
- end
- end
-
- if not lfs.isdir then
- function lfs.isdir(name)
- local m = lfsattributes(name,"mode")
- return m == "directory"
- end
- end
-
- -- shortnames have also be sort of dropped from kpse
-
- if not lfs.shortname then
- function lfs.shortname(name)
- return name
- end
- end
-
- -- now there is a target field, so ...
-
- if not lfs.readlink then
- function lfs.readlink(name)
- return symlinkattributes(name,"target") or nil
- end
- end
-
-end
-
--- so far
-
-if utilities and utilities.merger and utilities.merger.compact then
-
- local byte, format, gmatch = string.byte, string.format, string.gmatch
- local concat = table.concat
-
- local data = gsub(io.loaddata('luatex-core.lua'),'if%s+utilities.*','')
-
- local t = { }
- local r = { }
- local n = 0
- local d = gsub(data,'\r\n','\n') -- be nice for unix
- local s = utilities.merger.compact(d) -- no comments and less spaces
-
- t[#t+1] = '/* generated from and by luatex-core.lua */'
- t[#t+1] = ''
- -- t[#t+1] = format('/*\n\n%s\n\n*/',d)
- -- t[#t+1] = ''
- t[#t+1] = '#include "lua.h"'
- t[#t+1] = '#include "lauxlib.h"'
- t[#t+1] = ''
- t[#t+1] = 'int load_luatex_core_lua (lua_State * L);'
- t[#t+1] = ''
- t[#t+1] = 'int load_luatex_core_lua (lua_State * L)'
- t[#t+1] = '{'
- t[#t+1] = ' static unsigned char luatex_core_lua[] = {'
- for c in gmatch(d,'.') do
- if n == 16 then
- n = 1
- t[#t+1] = ' ' .. concat(r,', ') .. ','
- else
- n = n + 1
- end
- r[n] = format('0x%02x',byte(c))
- end
- n = n + 1
- r[n] = '0x00'
- t[#t+1] = ' ' .. concat(r,', ',1,n)
- t[#t+1] = ' };'
- -- t[#t+1] = format('unsigned int luatex_core_lua_len = 0x%x;',#d+1)
- t[#t+1] = ' return luaL_dostring(L, (const char*) luatex_core_lua);'
- t[#t+1] = '}'
-
- io.savedata('luatex-core.c',concat(t,'\n'))
- io.savedata('luatex-core-stripped.lua',s)
-
-end
+-- luatex-core security and io overloads ........... + +-- if not modules then modules = { } end modules ['luatex-core'] = { +-- version = 1.080, +-- comment = 'companion to luatex', +-- author = 'Hans Hagen & Luigi Scarso', +-- copyright = 'LuaTeX Development Team', +-- } + +LUATEXCOREVERSION = 1.080 -- we reflect the luatex version where changes happened + +-- This file overloads some Lua functions. The readline variants provide the same +-- functionality as LuaTeX <= 1.04 and doing it this way permits us to keep the +-- original io libraries clean. Performance is probably even a bit better now. + +-- We test for functions already being defined so that we don't overload ones that +-- are provided in the startup script. + +local type, next, getmetatable, require = type, next, getmetatable, require +local find, gsub, format = string.find, string.gsub, string.format + +local io_open = io.open +local io_popen = io.popen +local io_lines = io.lines + +local fio_readline = fio.readline +local fio_checkpermission = fio.checkpermission +local fio_recordfilename = fio.recordfilename + +local mt = getmetatable(io.stderr) +local mt_lines = mt.lines +local saferoption = status.safer_option +local shellescape = status.shell_escape -- 0 (disabled) 1 (anything) 2 (restricted) +local kpseused = status.kpse_used -- 0 1 + +local write_nl = texio.write_nl + +io.saved_lines = io_lines -- always readonly +mt.saved_lines = mt_lines -- always readonly + +local function luatex_io_open(name,how) + if not how then + how = 'r' + end + local f = io_open(name,how) + if f then + if type(how) == 'string' and find(how,'w') then + fio_recordfilename(name,'w') + else + fio_recordfilename(name,'r') + end + end + return f +end + +local function luatex_io_open_readonly(name,how) + if not how then + how = 'r' + else + how = gsub(how,'[^rb]','') + if how == '' then + how = 'r' + end + end + local f = io_open(name,how) + if f then + fio_recordfilename(name,'r') + end + return f +end + +local function luatex_io_popen(name,...) + local okay, found = fio_checkpermission(name) + if okay and found then + return io_popen(found,...) + end +end + +-- local function luatex_io_lines(name,how) +-- if name then +-- local f = io_open(name,how or 'r') +-- if f then +-- return function() +-- return fio_readline(f) +-- end +-- end +-- else +-- return io_lines() +-- end +-- end + +-- For some reason the gc doesn't kick in so we need to close explitly +-- so that the handle is flushed. + +local error, type = error, type + +local function luatex_io_lines(name,how) + if type(name) == "string" then + local f = io_open(name,how or 'r') + if f then + return function() + local l = fio_readline(f) + if not l then + f:close() + end + return l + end + else + -- for those who like it this way: + error("patched 'io.lines' can't open '" .. name .. "'") + end + else + return io_lines() + end +end + +local function luatex_io_readline(f) + return function() + return fio_readline(f) + end +end + +io.lines = luatex_io_lines +mt.lines = luatex_io_readline + +-- We assume management to be provided by the replacement of kpse. This is the +-- case in ConTeXt. + +if kpseused == 1 then + + io.open = luatex_io_open + io.popen = luatex_io_popen + +end + +if saferoption == 1 then + + local function installdummy(str,f) + local reported = false + return function(...) + if not reported then + write_nl(format("safer option set, function %q is %s", + str,f and "limited" or "disabled")) + reported = true + end + if f then + return f(...) + end + end + end + + local function installlimit(str,f) + local reported = false + end + + debug = nil + os.execute = installdummy("os.execute") + os.spawn = installdummy("os.spawn") + os.exec = installdummy("os.exec") + os.setenv = installdummy("os.setenv") + os.tempdir = installdummy("os.tempdir") + + io.popen = installdummy("io.popen") + io.open = installdummy("io.open",luatex_io_open_readonly) + + os.rename = installdummy("os.rename") + os.remove = installdummy("os.remove") + + io.tmpfile = installdummy("io.tmpfile") + io.output = installdummy("io.output") + + lfs.chdir = installdummy("lfs.chdir") + lfs.lock = installdummy("lfs.lock") + lfs.touch = installdummy("lfs.touch") + lfs.rmdir = installdummy("lfs.rmdir") + lfs.mkdir = installdummy("lfs.mkdir") + +end + +if saferoption == 1 or shellescape ~= 1 then + + ffi = require('ffi') + for k, v in next, ffi do + if k ~= 'gc' then + ffi[k] = nil + end + end + ffi = nil + +end + +-- os.[execute|os.spawn|os.exec] already are shellescape aware) + + +if md5 then + + local sum = md5.sum + local gsub = string.gsub + local format = string.format + local byte = string.byte + + if not md5.sumhexa then + function md5.sumhexa(k) + return (gsub(sum(k), ".", function(c) + return format("%02x",byte(c)) + end)) + end + end + + if not md5.sumHEXA then + function md5.sumHEXA(k) + return (gsub(sum(k), ".", function(c) + return format("%02X",byte(c)) + end)) + end + end + +end + +-- compatibility: this might go away + +if not unpack then + unpack = table.unpack +end + +if not package.loaders then + package.loaders = package.searchers +end + +if not loadstring then + loadstring = load +end + +-- compatibility: this might stay + +if bit32 then + + -- lua 5.2: we're okay + +elseif utf8 then + + -- lua 5.3: bitwise.lua, v 1.24 2014/12/26 17:20:53 roberto + + bit32 = load ( [[ +local select = select -- instead of: arg = { ... } + +bit32 = { + bnot = function (a) + return ~a & 0xFFFFFFFF + end, + band = function (x, y, z, ...) + if not z then + return ((x or -1) & (y or -1)) & 0xFFFFFFFF + else + local res = x & y & z + for i=1,select("#",...) do + res = res & select(i,...) + end + return res & 0xFFFFFFFF + end + end, + bor = function (x, y, z, ...) + if not z then + return ((x or 0) | (y or 0)) & 0xFFFFFFFF + else + local res = x | y | z + for i=1,select("#",...) do + res = res | select(i,...) + end + return res & 0xFFFFFFFF + end + end, + bxor = function (x, y, z, ...) + if not z then + return ((x or 0) ~ (y or 0)) & 0xFFFFFFFF + else + local res = x ~ y ~ z + for i=1,select("#",...) do + res = res ~ select(i,...) + end + return res & 0xFFFFFFFF + end + end, + btest = function (x, y, z, ...) + if not z then + return (((x or -1) & (y or -1)) & 0xFFFFFFFF) ~= 0 + else + local res = x & y & z + for i=1,select("#",...) do + res = res & select(i,...) + end + return (res & 0xFFFFFFFF) ~= 0 + end + end, + lshift = function (a, b) + return ((a & 0xFFFFFFFF) << b) & 0xFFFFFFFF + end, + rshift = function (a, b) + return ((a & 0xFFFFFFFF) >> b) & 0xFFFFFFFF + end, + arshift = function (a, b) + a = a & 0xFFFFFFFF + if b <= 0 or (a & 0x80000000) == 0 then + return (a >> b) & 0xFFFFFFFF + else + return ((a >> b) | ~(0xFFFFFFFF >> b)) & 0xFFFFFFFF + end + end, + lrotate = function (a ,b) + b = b & 31 + a = a & 0xFFFFFFFF + a = (a << b) | (a >> (32 - b)) + return a & 0xFFFFFFFF + end, + rrotate = function (a, b) + b = -b & 31 + a = a & 0xFFFFFFFF + a = (a << b) | (a >> (32 - b)) + return a & 0xFFFFFFFF + end, + extract = function (a, f, w) + return (a >> f) & ~(-1 << (w or 1)) + end, + replace = function (a, v, f, w) + local mask = ~(-1 << (w or 1)) + return ((a & ~(mask << f)) | ((v & mask) << f)) & 0xFFFFFFFF + end, +} + ]] ) + +elseif bit then + + -- luajit (for now) + + bit32 = load ( [[ +local band, bnot, rshift, lshift = bit.band, bit.bnot, bit.rshift, bit.lshift + +bit32 = { + arshift = bit.arshift, + band = band, + bnot = bnot, + bor = bit.bor, + bxor = bit.bxor, + btest = function(...) + return band(...) ~= 0 + end, + extract = function(a,f,w) + return band(rshift(a,f),2^(w or 1)-1) + end, + lrotate = bit.rol, + lshift = lshift, + replace = function(a,v,f,w) + local mask = 2^(w or 1)-1 + return band(a,bnot(lshift(mask,f)))+lshift(band(v,mask),f) + end, + rrotate = bit.ror, + rshift = rshift, +} + ]] ) + +else + + -- hope for the best or fail + + bit32 = require("bit32") + +end + +-- this is needed for getting require("socket") right + +do + + local loaded = package.loaded + + if not loaded.socket then loaded.socket = loaded["socket.core"] end + if not loaded.mime then loaded.mime = loaded["mime.core"] end + +end + +do + + local lfsattributes = lfs.attributes + local symlinkattributes = lfs.symlinkattributes + + -- these can now be done using lfs (was dead slow before) + + if not lfs.isfile then + function lfs.isfile(name) + local m = lfsattributes(name,"mode") + return m == "file" or m == "link" + end + end + + if not lfs.isdir then + function lfs.isdir(name) + local m = lfsattributes(name,"mode") + return m == "directory" + end + end + + -- shortnames have also be sort of dropped from kpse + + if not lfs.shortname then + function lfs.shortname(name) + return name + end + end + + -- now there is a target field, so ... + + if not lfs.readlink then + function lfs.readlink(name) + return symlinkattributes(name,"target") or nil + end + end + +end + +-- so far + +if utilities and utilities.merger and utilities.merger.compact then + + local byte, format, gmatch = string.byte, string.format, string.gmatch + local concat = table.concat + + local data = gsub(io.loaddata('luatex-core.lua'),'if%s+utilities.*','') + + local t = { } + local r = { } + local n = 0 + local d = gsub(data,'\r\n','\n') -- be nice for unix + local s = utilities.merger.compact(d) -- no comments and less spaces + + t[#t+1] = '/* generated from and by luatex-core.lua */' + t[#t+1] = '' + -- t[#t+1] = format('/*\n\n%s\n\n*/',d) + -- t[#t+1] = '' + t[#t+1] = '#include "lua.h"' + t[#t+1] = '#include "lauxlib.h"' + t[#t+1] = '' + t[#t+1] = 'int load_luatex_core_lua (lua_State * L);' + t[#t+1] = '' + t[#t+1] = 'int load_luatex_core_lua (lua_State * L)' + t[#t+1] = '{' + t[#t+1] = ' static unsigned char luatex_core_lua[] = {' + for c in gmatch(d,'.') do + if n == 16 then + n = 1 + t[#t+1] = ' ' .. concat(r,', ') .. ',' + else + n = n + 1 + end + r[n] = format('0x%02x',byte(c)) + end + n = n + 1 + r[n] = '0x00' + t[#t+1] = ' ' .. concat(r,', ',1,n) + t[#t+1] = ' };' + -- t[#t+1] = format('unsigned int luatex_core_lua_len = 0x%x;',#d+1) + t[#t+1] = ' return luaL_dostring(L, (const char*) luatex_core_lua);' + t[#t+1] = '}' + + io.savedata('luatex-core.c',concat(t,'\n')) + io.savedata('luatex-core-stripped.lua',s) + +end diff --git a/Build/source/texk/web2c/luatexdir/luapplib/Makefile.orig b/Build/source/texk/web2c/luatexdir/luapplib/Makefile.orig index c6c1a73dd63..823c68f6bb9 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/Makefile.orig +++ b/Build/source/texk/web2c/luatexdir/luapplib/Makefile.orig @@ -49,12 +49,13 @@ PPSTATICDEPS=$(FLATELIB) # test programm
PPTEST1=$(OUTDIR)/pptest1$(EXEEXT)
PPTEST2=$(OUTDIR)/pptest2$(EXEEXT)
+PPTEST3=$(OUTDIR)/pptest3$(EXEEXT)
# includes
INC=-I $(UTILSDIR)
AUX=-I $(FLATEDIR)
-default: md $(PPSTATICLIB) $(PPTEST1) $(PPTEST2)
+default: md $(PPSTATICLIB) $(PPTEST1) $(PPTEST2) $(PPTEST3)
md:
@[ -d $(OUTDIR) ] || mkdir -p $(OUTDIR)
@@ -80,5 +81,9 @@ $(PPTEST2): $(PPSTATICLIB) pptest2.c $(CC) $(CFLAGS) $(STATICCOPTS) -o $(OUTDIR)/pptest2$(OBJEXT) -c pptest2.c
$(CC) -static-libgcc $(CFLAGS) -o $(PPTEST2) $(OUTDIR)/pptest2$(OBJEXT) $(PPSTATICLIB) $(PPSTATICDEPS) $(LIBS)
+$(PPTEST3): $(PPSTATICLIB) pptest3.c
+ $(CC) $(CFLAGS) $(STATICCOPTS) -I util -o $(OUTDIR)/pptest3$(OBJEXT) -c pptest3.c
+ $(CC) -static-libgcc $(CFLAGS) -o $(PPTEST3) $(OUTDIR)/pptest3$(OBJEXT) $(PPSTATICLIB) $(PPSTATICDEPS) $(LIBS)
+
clean:
rm -f $(OUTDIR)/*$(OBJEXT) $(OUTDIR)/*.a $(OUTDIR)/*$(EXEEXT)
diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/.buildinfo b/Build/source/texk/web2c/luatexdir/luapplib/html/.buildinfo new file mode 100644 index 00000000000..13665a90458 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/.buildinfo @@ -0,0 +1,4 @@ +# Sphinx build info version 1
+# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
+config: 96901ec9cd68906e4f139a0be4b45fcc
+tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/ppapi.rst.txt b/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/ppapi.rst.txt new file mode 100644 index 00000000000..83a5b0fc370 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/ppapi.rst.txt @@ -0,0 +1,937 @@ +
+``pplib``
+=========
+
+``pplib`` is a library for raw PDF access. It parses PDF documents and provides an interface to access document structures in C.
+
+C-API
+=====
+
+Types
+-----
+
+``pplib`` defines several C-types to represent PDF types:
+
+- ``ppint`` - signed integer (``int64_t``)
+- ``ppnum`` - real number (double)
+- ``ppname`` - PDF name
+- ``ppstring`` - PDF string
+- ``pparray`` - PDF array
+- ``ppdict`` - PDF dict
+- ``ppstream`` - PDF stream
+- ``ppref`` - PDF indirect reference
+- ``ppobj`` - a container of all above
+
+Among ``ppint`` and ``ppnum``, we also use ``ppuint`` - unsigned integer (machine word, alias to ``size_t``).
+
+Other API types:
+
+- ``ppdoc`` - PDF document
+- ``ppxref`` - cross-references table
+- ``ppcontext`` - ... later
+- ``pprect`` - rectangle
+- ``ppmatrix`` - matrix
+
+Integer, number, name and string are treated as simple types.
+Names and strings are actually C-structures, but exposed to API as typedefs to ``const char *``.
+Other types (array, dict, stream, reference, object container, xref, PDF) are C-structures,
+and you operate it their pointers. So when you declare a simple type variable you say::
+
+ ppuint u;
+ ppnum n;
+ ppname name;
+ ppstring string;
+ ...
+
+And when you declare a compound type you operate on pointers::
+
+ ppobj *obj;
+ pparray *array;
+ ppdict *dict;
+ ppstream *stream;
+ ppref *ref;
+ ppdoc *pdf;
+
+Some of those C-types are defined in library header ``ppapi.h`` (complete types). Some others are incomplete
+(eg. you can't say ``sizeof(ppdoc)`` or ``sizeof(ppxref)``). This is to avoid unnecesary dependencies in
+the header. [At some points it's not clear to me what to hide and what to expose, will see.] The library itself
+uses ``pplib.h`` but for auxilary applications including a standalone ``ppapi.h`` header should be enough.
+
+``pplib`` was designed having **read-only** PDF access in mind. Even if some structure is completelly exposed,
+so that you can directly access its members, you should treat them as read-only. I don't make them ``const`` because
+then all variable declarations would need to be ``const``, which is annoying, and I'd need some trickery in the library
+internals to unconst. Besides, nothing is really const for C type casts.
+
+Object
+------
+
+A common container for all elementary PDF object types is ``ppobj`` structure. ``ppobj`` has a type identifier
+(integer) and union of values::
+
+ struct ppobj {
+ ppobjtp type;
+ union {
+ ppint integer;
+ ppnum number;
+ ppname name;
+ ppstring string;
+ pparray *array;
+ ppdict *dict;
+ ppstream *stream;
+ ppref *ref;
+ void *any;
+ };
+ };
+
+Object type is one of constants (enum)::
+
+ PPNONE
+ PPNULL
+ PPBOOL
+ PPINT
+ PPNUM
+ PPNAME
+ PPSTRING
+ PPARRAY
+ PPDICT
+ PPSTREAM
+ PPREF
+
+The type determines the structure member you're allowed to access::
+
+ ppobj *obj;
+ ...
+ switch (obj->type)
+ {
+ case PPNONE: // shouldn't actually happen, indicates some failure
+ break;
+ case PPNULL: // valid PDF null object, no value
+ break;
+ case PPBOOL: // do something with obj->integer (ppint), value 0 or 1
+ break;
+ case PPINT: // do something with obj->integer (ppint)
+ break;
+ case PPNUM: // do something with obj->number (ppnum)
+ break;
+ case PPNAME: // do something with obj->name (ppname)
+ break;
+ case PPSTRING: // do something with obj->string (ppstring)
+ break;
+ case PPARRAY: // do something with obj->array (pparray *)
+ break;
+ case PPDICT: // do something with obj->dict (ppdict *)
+ break;
+ case PPSTREAM: // do something with obj->stream (ppstream *)
+ break;
+ case PPREF: // do something with obj->ref (ppref *)
+ break;
+ }
+
+More often then not you know exactly what type of object value is expected, in which case
+you may use one of the following macros::
+
+ // returns 1 if o->type is PPNULL
+ int ppobj_get_null(o) \
+
+ // if o->type is PPBOOL, sets int v to 0 or 1 and returns 1, 0 otherwise
+ int ppobj_get_bool(o, v)
+
+ // if o->type is PPINT, sets ppint v and returns 1, 0 otherwise
+ int ppobj_get_int(o, v)
+
+ // if o->type is PPINT and >= 0, sets ppuint v and returns 1, 0 otherwise
+ int ppobj_get_uint(o, v)
+
+ // if o->type is PPNUM or PPINT, sets ppnum v and returns 1, 0 otherwise
+ int ppobj_get_num(o, v)
+
+ // if o->type is PPNAME returns the name, NULL otherwise
+ ppname ppobj_get_name(o)
+
+ // if o->type is PPSTRING returns the string, NULL otherwise
+ ppstring ppobj_get_string(o)
+
+ // if o->type is PPARRAY returns the array, NULL otherwise
+ pparray * ppobj_get_array(o)
+
+ // if o->type is PPDICT returns the dict, NULL otherwise
+ ppdict * ppobj_get_dict(o)
+
+ // if o->type is PPSTREAM returns the stream, NULL otherwise
+ ppstream * ppobj_get_stream(o)
+
+ // if o->type is PPREF returns the reference, NULL otherwise
+ ppref * ppobj_get_ref(o)
+
+Note the coercion from integer to real number, but not reverse. In practise, whenever you expect a real number,
+you should also handle integer (eg. '1' used instead of '1.0').
+
+It is a common case that the object is given as an indirect reference, but what you actually
+want is not the reference, but the object referred by it. Here is a helper for it::
+
+ // if o->type is PPREF, returns what the reference points, otherwise returns o
+ ppobj * ppobj_rget_obj(o)
+
+Also every ``ppobj_get_*`` macro has ``ppobj_rget_*`` counterpart that makes a check
+for the expected type, but if the object is PPREF, it jumps to the target object.
+So for example ``ppobj_rget_dict(obj)`` will return dict if ``obj`` is of type PPDICT
+or if it is of type PPREF and ``obj->ref`` hosts an object of type PPDICT.
+
+Names
+-----
+
+PDF names are represented as ``ppname``.
+I find it convenient to have ``ppname`` type pretending ``const char *``. This allows to use ``ppname``
+in all C-style string functions like ``printf("%s", name)``.
+
+Be aware, however, that ``ppname`` is actually a C-structure. It is perfectly ok to cast ``ppname`` to ``const char *``::
+
+ ppname name;
+ ...
+ (const char *)name;
+
+But reverse is forbidden::
+
+ const char *cstr = "cstring";
+ ...
+ (ppname)cstr; // expect segmentation fault soon
+
+For convenient use in C, names are ``'\0'`` terminated. But to get the length of name better always use
+``ppname_size()`` macro. ``ppname`` object knows its size, don't use ``strlen()``::
+
+ size_t ppname_size(ppname name); // macro, returns length of name in bytes
+
+In current implementation names are not hashed anyhow, so name-to-name comparison is not smarter than ``memcmp()``.
+Use macros::
+
+ int ppname_is(ppname name, "literal"); // to compare ppname with C-literal string
+ int ppname_eq(ppname name, ppname other); // to compare ppname with a different name
+
+If you'll use ``pplib`` to parse contents streams, you may need to distinguish names from operators
+(more precisely executable names). Names in PDF are preceeded by '/', executable names aren't. In both
+cases PDF parser will produce ``ppname`` but can be distingushed with::
+
+ int ppname_exec(ppname name); // returns non-zero if name is executable
+
+Names are kept in their raw form, with possible PDF specific escapes (in text below we call it **encoded** form).
+Leading '/' is omitted, though. One may need a decoded name, with no PDF escapes.
+A pair of functions provides a simple interface to switch between those two forms::
+
+ ppname ppname_decoded (ppname name); // returns decoded (unescaped) form of the name
+ ppname ppname_encoded (ppname name); // returns encoded (escaped) form of the name
+
+In pretty most cases PDF names contains only letters (no special characters, no escapes), so decoded and encoded forms are identical.
+In that case both functions simply return the argument. It is ok to call ``ppname_decoded()`` on already decoded form
+and ``ppname_encoded()`` on already encoded form. Both forms are produced by PDF objects parser, so accessing ``ppname`` alter ego
+in whatever direction needs no extra decoding or allocation costs.
+
+String
+------
+
+PDF strings have the same internal construction as names, so most of names description above applies to strings as well.
+``ppstring`` is a typedef of ``const char *``, roughly ``'\0'`` terminiated C-string. To get the size of the string::
+
+ size_t ppstring_size(ppstring string); // macro, returns the length of the string in bytes
+
+Strings are provided in their raw form, preserving PDF specific escapes, but with no
+``()`` or ``<>`` delims. To distinguish plain strings from hex strings::
+
+ int ppstring_hex(ppstring string); // macro, returns non zero if hex string
+
+Or if you prefer::
+
+ switch (ppstring_type(string))
+ {
+ case PPSTRING_PLAIN: // literal string, surrounded by ``(`` and ``)`` in PDF
+ break;
+ case PPSTRING_BASE16: // hex string, surrounded by ``<`` and ``>`` in PDF
+ break;
+ case PPSTRING_BASE85: // base85 string surrounded by ``<~`` and ``~>`` in PDF
+ break;
+ }
+
+The last is actually Postscript specific, not used in PDF, but I think it might appear in contents streams...
+No matter how the string is given in PDF (plain or hex), here are two functions to
+switch between encoded and decoded strings forms::
+
+ ppstring ppstring_decoded (ppstring string); // returns decoded string possibly with PDF escapes
+ ppstring ppstring_encoded (ppstring string); // returns encoded string with no PDF escapes
+
+For hex strings, encoded form contains hex digits, while decoded form contains arbitrary bytes (the result of hex decoding).
+Plain strings usually contains printable ASCII characters, but they might contain any binary data.
+As with names, objects parser produces both forms. The raw form with PDF escapes (or raw hex form) is considered the main one.
+Eg. when you access ``obj->string`` you always get the encoded form. At any moment you can switch to its alter ego.
+
+No matter if the string is plain or hex, if its first two bytes (decoded) are UTF16 BOM, the string
+is considered unicode. ``ppstring`` object *knows* it is unicode or not::
+
+ switch (ppstring_utf(string))
+ {
+ case PPSTRING_UTF16LE: // unicode string, utf16le
+ break;
+ case PPSTRING_UTF16BE: // unicode string, utf16be
+ break;
+ default: // no unicode
+ }
+
+Or simply::
+
+ if (ppstring_utf(string) != 0) {
+ // handle unicode string
+ }
+
+If the string is unicode, BOM remains the part of the string -- ``pplib`` parser does not strip it.
+Unicode or not, encoded or decoded, strings are always C-arrays of bytes and ``ppstring_size()``
+always returns the size in bytes.
+
+Array
+-----
+
+PDF arrays are represented as ``pparray`` type, which is C-array of ``ppobj`` structures.
+To get the size::
+
+ size_t pparray_size(pparray *array) // macro, returns the number of array items
+
+To get ``ppobj *`` at a given index::
+
+ ppobj * pparray_at(array, index) // macro, returns ppobj * (no index check)
+ ppobj * pparray_get(array, index) // macro, returns ppobj * or NULL (with index check)
+ ppobj * pparray_get_obj (pparray *array, size_t index); // function equiv to pparray_get()
+
+Iterating over array elements::
+
+ pparray *array;
+ size_t index, size;
+ ppobj *obj;
+ for (size = pparray_size(array), pparray_first(array, index, obj); index < size; pparray_next(index, obj))
+ {
+ // do something with index and obj
+ }
+
+There is no magic first/next macros, just iteration over pointers. One could also use something like::
+
+ for (index = 0, size = array->size; index < size; ++index)
+ {
+ obj = pparray_at(array, index);
+ // do something with index and obj
+ }
+
+When getting values from array and expecting a result of known type, use one of the following::
+
+ int pparray_get_bool (pparray *array, size_t index, int *v); // get boolean value
+ int pparray_get_int (pparray *array, size_t index, ppint *v); // get ppint value
+ int pparray_get_uint (pparray *array, size_t index, ppuint *v); // get ppuint value
+ int pparray_get_num (pparray *array, size_t index, ppnum *v); // get ppnum value
+ ppname pparray_get_name (pparray *array, size_t index); // get ppname value
+ ppstring pparray_get_string (pparray *array, size_t index); // get ppstring value
+ pparray * pparray_get_array (pparray *array, size_t index); // get pparray * value
+ ppdict * pparray_get_dict (pparray *array, size_t index); // get ppdict * value
+ ppref * pparray_get_ref (pparray *array, size_t index); // get ppref * value
+
+As with ``ppobj_get_*`` suite, numeric types getters set the value of a given type and returns 1, if the type matches.
+Otherwise sets nothing and returns 0. Other getters return the value if the type matches, or NULL.
+
+Every function from ``pparray_get_*`` suite have its ``pparray_rget_*`` counterpart that
+that dereferences indirect objects (as explained for ``ppobj_rget_*`` getters). Note that
+there is no ``pparray_get_stream()`` function, as streams in PDF are always indirect.
+To get the stream from array use::
+
+ ppstream * pparray_rget_stream (pparray *array, size_t index);
+
+Dict
+----
+
+PDF dicts are represented as ``ppdict`` structure, which is C-array of ``ppobj`` with parallel
+C-array of ``ppname`` pointers. To get the size of a dict::
+
+ size_t ppdict_size(ppdict *dict) // macro, returns the number of key-val pairs
+
+To get the value at a given index (integer)::
+
+ ppobj * ppdict_at(ppdict *dict, index) // macro, no index check
+
+To get the name (key) at a given index::
+
+ ppname ppdict_key(ppdict *dict, index) // macro, no index check
+
+To iterate over dict key-val pairs::
+
+ ppdict *dict;
+ ppname *pkey;
+ ppobj *obj;
+
+ for (ppdict_first(dict, pkey, obj); *pkey != NULL; ppdict_next(pkey, obj))
+ {
+ // do something with *pkey and obj
+ }
+
+There is no magic in first/next macros, just iteration through keys and values lists pointers.
+For convenient iteration, a list of keys is terminated with NULL, so in the code above ``*pkey != NULL``
+is used as the loop condition. One may also iterate via indices::
+
+ ppdict *dict;
+ size_t index, size;
+ ppname key;
+ ppobj *obj;
+ for (index = 0, size = ppdict_size(dict); index < size; ++index)
+ {
+ key = ppdict_key(dict, index);
+ obj = ppdict_at(dict, index);
+ // do something with key and obj
+ }
+
+To get the object associated with a given name, use one of the following::
+
+ ppobj * ppdict_get_obj (ppdict *dict, const char *name);
+ int ppdict_get_bool (ppdict *dict, const char *name, int *v);
+ int ppdict_get_int (ppdict *dict, const char *name, ppint *v);
+ int ppdict_get_uint (ppdict *dict, const char *name, ppuint *v);
+ int ppdict_get_num (ppdict *dict, const char *name, ppnum *v);
+ ppname ppdict_get_name (ppdict *dict, const char *name);
+ ppstring ppdict_get_string (ppdict *dict, const char *name);
+ pparray * ppdict_get_array (ppdict *dict, const char *name);
+ ppdict * ppdict_get_dict (ppdict *dict, const char *name);
+ ppref * ppdict_get_ref (ppdict *dict, const char *name);
+
+Note that all getters accepts ``const char *`` as key, so it is ok to say::
+
+ ppdict_rget_dict(dict, "Resources");
+
+as well as::
+
+ ppdic_rget_dict(dict, name); // ppname name
+
+Every ``ppdict_get_*`` getter has ``ppdict_rget_*`` counterpart that dereferences
+indirect objects if necessary. Note that there is no ``ppdict_get_stream()`` function,
+but there is::
+
+ ppstream * ppdict_rget_stream (ppdict *dict, const char *name);
+
+So far dicts comes with no names mapping, so by-name dict accessors perform a linear search
+through the keys list. PDF dicts are usually small, so it is fast enough.
+Building names lookup for every dict in PDF makes no sense I think, as ``pplib`` applications
+will query just several dicts I guess.. However, some apps may extensively query
+resources, which may refer to hundreds of objects (eg. images). So some mapping for dicts
+is still considered.
+
+Stream
+------
+
+PDF streams are represented as ``ppstream`` objects. To get the stream dict::
+
+ ppdict * ppstream_dict(ppstream *stream) // macro
+
+To read the stream data::
+
+ uint8_t * ppstream_first (ppstream *stream, size_t *size, int decode);
+ uint8_t * ppstream_next (ppstream *stream, size_t *size);
+ void ppstream_done (ppstream *stream);
+
+Both ``first` and ``next`` functions return a chunk of stream data and sets the ``size`` of the chunk.
+``decode`` parameter tell the reader to decompress the stream (1) or return raw (0). A call to ``ppstream_next()``
+must be preceeded by ``ppstream_first()``. Once you're done with the stream, you have to call ``ppstream_done()``,
+no matter if the stream has been read to the end or not. The stream data iterator in use::
+
+ uint8_t *data;
+ size_t size;
+ ppstream *stream;
+ int decode = 1; // 1 - get decompressed, 0 - get raw
+
+ for (data = ppstream_first(stream, &size, decode); data != NULL; data = ppstream_next(stream, &size))
+ {
+ // do something with data and its size
+ }
+ ppstream_done(stream);
+
+Every subsequent iterator call invalidates the previous reader output, so you have to utilize the returned chunk
+of data just after you ot that. So the following is wrong::
+
+ data1 = ppstream_first(stream, &size, 1);
+ data2 = ppstream_next(stream, &size);
+ data3 = ppstream_next(stream, &size);
+ some_output(data1, size);
+ some_output(data2, size);
+
+The reader calls usually return the same pointer to internal buffer, just filled with a different data.
+``pplib`` allocates reasonably large buffer and fills that buffer on subsequent calls to the reader.
+
+If the source stream has no compression, using both ``decode == 1`` and ``decode == 0`` should give the same result.
+You can check if the stream is actually compressed with::
+
+ ppstream_compressed(stream) // macro, returns non zero if /Filter is present
+
+It might be necessary to load the entire stream data at once::
+
+ uint8_t * ppstream_all (ppstream *stream, size_t *size, int decode);
+
+If the initial buffer size is insufficient, it grows until the entire stream data is loaded. You must call
+``ppstream_done(stream)`` after using returned data.
+
+``ppstream_done()`` doesn't invalidate the stream object, it just closes its internal reader.
+The stream itself remains a valid object (eg. one can read it again if necessary),
+but the reader buffer is released. It is actually not freed but kept for future the reuse with that on some other stream,
+but you still need to mark it ready for reuse to avoid allocating a separate buffer for every stream you're going to read.
+
+Stream data readers will return ``NULL`` if you haven't close the previous reader process with ``ppstream_done()``. All below is wrong::
+
+ data1 = ppstream_all(stream, &size, 1);
+ data2 = ppstream_all(stream, &size, 1); // data2 == NULL
+ // or
+ data1 = ppstream_first(stream, &size, 1);
+ data2 = ppstream_first(stream, &size, 1); // data2 == NULL
+ // or
+ data1 = ppstream_first(stream, &size, 1);
+ data2 = ppstream_all(stream, &size, 1); // data2 == NULL
+
+To avoid unnecessary dependencies, ``pplib`` does not support image filters (``/DCT``, ``/JPX``, ``/JBIG``, ``/CCITT``).
+But it is ok to read the stream with ``decode`` set to 1 on such streams. ``pplib`` assumes that the image is the
+final/target stream form and just returns it as-is. Eg. in the case of JPEG (``/DCT`` filtered) image both calls should
+give the same results::
+
+ ppstream_all(jpegstream, &jpegsize, 0); // don't decode, return what's there
+ ppstream_all(jpegstream, &jpegsize, 1); // decode but found image filter, effectively the same
+
+A bit more about streams memory. As mentioned, ``pplib`` allocates buffers for stream readers. After ``ppstream_done()``,
+the stream no longer *owns* the buffer space. But the buffer may remain allocated, to be reused with future readers.
+``pplib`` keeps a pool of several buffers. This means, that when you use stream readers, ``pplib`` eats
+some memory (1MB or so) that is not freed, even if no streams are used. And even if you free all objects.
+If you suffer from this, you can optionally use a pair of functions::
+
+ void ppstream_init_buffers (void);
+ void ppstream_free_buffers (void);
+
+The first initializes buffers pool, unless done so far. Currently ``pplib`` cares of it before opening every stream reader,
+so it is not obligatory. The second frees a pool of buffers. The intended use is to call ``ppstream_init_buffers()`` once
+as kind of library initializer and to call ``ppstream_free_buffers()`` once, as the library finalizer.
+
+Filters
+-------
+
+In version v1.00 (20190916) ``ppstream`` API has been extended with filters information.
+``ppstream`` knows its filter(s) and keps it as ``stream->filter``::
+
+ // ppstream *stream;
+ ppstream_filter *info = &stream->filter;
+
+``ppstream_filter`` is the following structure::
+
+ typedef struct {
+ ppstreamtp *filters; // c-array of filter identifiers (enum integers)
+ ppdict **params; // c-array of ppdict pointers
+ size_t count; // number of filters, length of the arrays (typically 1)
+ } ppstream_filter;
+
+If ``count > 0`` then ``filters`` member is not NULL. Filters array keeps integer constants::
+
+ PPSTREAM_BASE16 /* /ASCIIHexDecode */
+ PPSTREAM_BASE85 /* /ASCII85Decode */
+ PPSTREAM_RUNLENGTH /* /RunLengthDecode */
+ PPSTREAM_FLATE /* /FlateDecode */
+ PPSTREAM_LZW /* /LZWDecode */
+ PPSTREAM_CCITT /* /CCITTFaxDecode */
+ PPSTREAM_DCT /* /DCTDecode */
+ PPSTREAM_JBIG2 /* /JBIG2Decode */
+ PPSTREAM_JPX /* /JPXDecode */
+ PPSTREAM_CRYPT /* /Crypt */
+
+Params array keeps corresponding filter parameters (``/DecodeParms``) if present. ``params`` member is not NULL
+if ``count > 0`` and the stream dict has ``/DecodeParms`` entry. Even if ``params`` is there,
+for every N-th filter, ``params[N]`` may be NULL (corresponding to PDF ``null``).
+
+``stream->filter`` keeps the source stream filter information, which may not correspond to the result of stream readers
+(``ppstream_first()``, ``ppstream_next()``, ``ppstream_all()``). The get the filters info relevant to the result from readers::
+
+ void ppstream_filter_info (ppstream *stream, ppstream_filter *info, int decode);
+
+The function fills ``ppstream_filter`` structure according to the expected result from stream readers (example 3 shows
+how to use it to reconstruct ``/Filter`` and ``/DecodeParms`` when copying the stream to some other PDF).
+
+To convert filter identifier (``ppstreamtp``) to a corresponding PDF filter name::
+
+ const char * ppstream_filter_name[];
+
+To covert ``ppname`` to filter identifier::
+
+ int ppstream_filter_type (ppname filtername, ppstreamtp *filtertype);
+ // returns 1 and sets filtertype if filtername is the proper filter name
+
+Additional information about the stream can be fetched from macros::
+
+ ppstream_compressed(stream) /* stream->flags & (PPSTREAM_FILTER|PPSTREAM_IMAGE) */
+ ppstream_filtered(stream) /* stream->flags & PPSTREAM_FILTER */
+ ppstream_image(stream) /* stream->flags * PPSTREAM_IMAGE */
+
+``stream->flags`` is a binary sum of the following::
+
+ PPSTREAM_FILTER /* set iff the stream filters list has one of: BASE16, BASE85, RUNLENGTH, FLATE, LZW */
+ PPSTREAM_IMAGE /* set iff the stream filters list has one of: CCITT, DCT, JBIG2, JPX */
+ PPSTREAM_ENCRYPTED /* set iff the stream is encrypted */
+ PPSTREAM_ENCRYPTED_OWN /* set iff the stream has own CRYPT filter */
+
+Note that ``PPSTREAM_COMPRESSED`` is not there any longer, use ``ppstream_compressed()`` instead.
+And there is some more, see ``ppapi.h``.
+
+Ref
+---
+
+Indirect objects are represented as ``ppref`` structure. To get the object that the
+reference refers to::
+
+ ppobj * ppref_obj(ppref *ref) // macro
+
+``ppref`` structure also keeps the reference number and version, a pointer to cross reference table it belongs
+to and others, but I guess you won't need anything but the referenced object. ``pplib`` parser resolves references
+on-fly. So if there is a dict with indirect objects::
+
+ <<
+ /Type /Page
+ /Resources 123 0 R
+ ...
+ >>
+
+the parser will produce ``ppdict`` with ``Resources`` key pointing the proper ``ppref *`` value.
+If you need more, access ``ppref`` members::
+
+ struct ppref {
+ ppobj object; // target object
+ ppuint number, version; // identifiers
+ size_t offset; // file offset (useless for you, may be zero for compressed objects)
+ ppuint length; // the length of the original object data
+ ppxref *xref; // cross reference table it belongs to
+ };
+
+
+XRef
+----
+
+Cross reference table is exposed as ``ppxref`` (incomplete type, you can only oprate on its pointer).
+To get top document xref::
+
+ ppxref * ppdoc_xref (ppdoc *pdf);
+
+To get previous (older) xref::
+
+ ppxref * ppxref_prev (ppxref *xref);
+
+To find an object of a given refnumber::
+
+ ppref * ppxref_find (ppxref *xref, ppuint refnumber);
+
+[Note: since pplib v0.98 in case of documents with incremental update, ``ppxref_find()`` returns
+the newest available version of a given object rather than the object in a given body.]
+
+PDF
+---
+
+PDF document is represented as ``ppdoc`` structure (incomplete type, you can only operate on its pointer).
+To load a document from file::
+
+ ppdoc * ppdoc_load (const char *filename);
+
+To load a document from memory data::
+
+ ppdoc * ppdoc_mem (const void *data, size_t size);
+
+The data is assumed to be a buffer allocated with ``malloc`` - it is freed when destroying ``ppdoc``.
+
+Both loaders returns ``NULL`` on failure.
+
+To free ``ppdoc`` and all objects it refers to::
+
+ void ppdoc_free (ppdoc *pdf);
+
+So far we haven't mention about any explicit object reclaimers. There are no dedicated ``free`` functions
+for other objects. You don't allocate or free objects yourself. ``ppdoc`` object is an owner of all
+beings it refers to. It also means that every object described so far is alive as long as the containing
+``ppdoc`` is alive.
+
+To access main PDF dicts::
+
+ ppdict * ppdoc_trailer(ppdoc *pdf); // returns top xref trailer dict
+ ppdict * ppdoc_catalog(ppdoc *pdf); // returns catalog referred from the trailer
+ ppdict * ppdoc_info(ppdoc *pdf); // returns info dict referred from the trailer
+
+To get the PDF version::
+
+ const char * ppdoc_version_string (ppdoc *pdf); // version string
+ int ppdoc_version_number (ppdoc *pdf, int *minor); // minor and major numbers
+
+To get the file size of the source PDF document::
+
+ size_t ppdoc_file_size (ppdoc *pdf);
+
+To get the number of objects in all xrefs::
+
+ ppuint ppdoc_objects (ppdoc *pdf);
+
+To get the approx usage of memory::
+
+ size_t ppdoc_memory (ppdoc *pdf, size_t *waste);
+
+Encryption
+----------
+
+``pplib`` handles encrypted (password protected) documents. If a document is encrypted, most of strings and streams are ciphered.
+In that form they are unreadable and rather useless, you can't even rewrite such strings/streams as-is to a different PDF output.
+It is a common practise to *protect* documents with an empty password. Such documents remain readable in Acrobat (just opens them without prompting
+for a password), but some features (eg. printing) may restricted by the application.
+
+When ``pplib`` detects encryption, it follows Acrobat approach and first tries an empty password. If it succeeds, ``pplib`` proceeeds normally, providing
+an access to decrypted strings and streams, as if they weren't ciphered. If the document is protected with non-empty password, ``pplib`` gives
+a way to provide a password and proceed. Until you provide a password, ``ppdoc`` object returned by ``ppdoc_load()`` function has all object wntries
+set to ``null``.
+
+After loading a document you should check encryption status with::
+
+ ppcrypt_status ppdoc_crypt_status (ppdoc *pdf);
+
+``ppcrypt_status`` (integer) may have the following values:
+
+ ``PPCRYPT_NONE`` - no encryption, go ahead
+ ``PPCRYPT_DONE`` - encryption present but password succeeded, go ahead
+ ``PPCRYPT_PASS`` - encryption present, need non-empty password
+ ``PPCRYPT_FAIL`` - invalid or unsupported encryption (eg. undocumented in pdf spec)
+
+If a password is needed, you can provide one with::
+
+ ppcrypt_status ppdoc_crypt_pass (ppdoc *pdf, const void *userpass, size_t userpasslength,
+ const void *ownerpass, size_t ownerpasslength);
+
+Well, yes, there are actually two passwords in encrypted documents. Relation between them is obscure to me, but enough
+to know that having one of them is enough to decrypt the document. If you know the password, you probably mean
+``userpass``, in which case you should put ``NULL`` as ``ownerpass``. The function returns ``PPCRYPT_DONE`` if the password
+succeeds and the previous status otherwise. Your custom loader function may look like that::
+
+ ppdoc *pdf;
+ pdf = ppdoc_load("file.pdf");
+ if (pdf == NULL)
+ return NULL;
+ switch (ppdoc_crypt_status(pdf))
+ {
+ case PPCRYPT_NONE:
+ case PPCRYPT_DONE:
+ return pdf;
+ case PPCRYPT_PASS:
+ if (ppdoc_crypt_pass(pdf, "dummy", 5, NULL, 0) == PPCRYPT_DONE ||
+ ppdoc_crypt_pass(pdf, NULL, 0, "dummy", 5) == PPCRYPT_DONE)
+ return pdf;
+ printf("sorry, password needed\n");
+ ppdoc_free(pdf);
+ return NULL;
+ case PPCRYPT_FAIL:
+ printf("sorry, encryption failed\n");
+ ppdoc_free(pdf);
+ return NULL;
+ }
+
+[If you get ``PPCRYPT_FAIL`` it might mean *I failed*, so treat as a bug.]
+
+If you'd like to know what permissions are given/restricted to encrypted document::
+
+ ppint ppdoc_permissions (ppdoc *pdf);
+
+Returned value can be queried with the following binary flags (you can verify with Acrobat *File -> Properties -> Security* tab)::
+
+ PPDOC_ALLOW_PRINT // printing
+ PPDOC_ALLOW_MODIFY // filling form fields, signing, creating template pages
+ PPDOC_ALLOW_COPY // copying, copying for accessibility
+ PPDOC_ALLOW_ANNOTS // filling form fields, copying, signing
+ PPDOC_ALLOW_EXTRACT // contents copying for accessibility
+ PPDOC_ALLOW_ASSEMBLY // (no effect)
+ PPDOC_ALLOW_PRINT_HIRES // (no effect)
+
+``pplib`` does absolutelly nothing with permissions, it cares only to decrypt the document. As mentioned, encryption applies to strings
+and streams. ``pplib`` decrypt strings when parsing document objects, so the result you get is *normal* (not ciphered).
+Streams are decrypted whenever you access them. Even if you ask for a raw stream data, you'll get a raw (compressed) stream, but decrypted.
+So except the check to ``ppdoc_crypt_status()``, you shouldn't bother about encryption.
+
+In encrypted documents most of streams are encrypted. To check if a given stream is encrypted::
+
+ ppstream_encrypted(stream) // macro, returns non-zero if encrypted
+
+Encryption is independent from compression, don't confuse with ``ppstream_compressed()``
+
+Pages
+-----
+
+Several helpers to deal with pages. To get the number of pages::
+
+ ppuint ppdoc_page_count (ppdoc *pdf);
+
+To access the root pages tree node::
+
+ ppref * ppdoc_pages(ppdoc *pdf);
+
+To get the page reference at a given index::
+
+ ppref * ppdoc_page (ppdoc *pdf, ppuint index);
+
+``index`` is a page number. First page has number 1. For index out of bounds ``ppdoc_page()`` returns NULL.
+Iterating over pages using index from 1 to ``ppdoc_page_count()`` and calling ``ppdoc_page()`` on each iteration
+would be suboptimal. Here is a dedicted iterator for this::
+
+ ppref * ppdoc_first_page (ppdoc *pdf);
+ ppref * ppdoc_next_page (ppdoc *pdf);
+
+The iterator in use::
+
+ ppdoc *pdf;
+ ppref *ref;
+ ppdict *dict;
+ int pageno;
+
+ pdf = ppdoc_load("file.pdf");
+ for (ref = ppdoc_first_page(pdf), pageno = 1; ref != NULL; ref = ppdoc_next_page(pdf), ++pageno)
+ {
+ dict = ppref_obj(obj)->dict; // take for granted it is a dict
+ // do something with the page dict
+ }
+
+Functions related to pages return ``ppref *`` ensured to contain dict object, so you don't need sanity
+type checks here.
+
+Contents
+--------
+
+PDF page contents can be given as a stream or array of streams. Here is a convenience iterator over page
+contents streams::
+
+ ppstream * ppcontents_first (ppdict *dict);
+ ppstream * ppcontents_next (ppdict *dict, ppstream *stream);
+
+A complete example of contents stream parser use is given below (example 2).
+But before we get there, we need to introduce ``ppcontext`` object. Conceptually,
+``ppcontext`` is an owner (memory handler) of objects created on demand (beyond the ``ppdoc``).
+So far used only with contents stream parser, which might produce quite some data that we want
+to release just after used. To create a new context::
+
+ pcontext * ppcontext_new (void);
+
+It initializes a new context and its internal memory heap, taking about 64kB on start. After that,
+the context is ready to produce objects (contents parsing functions below). Once objects produced
+from a given context are no longer needed::
+
+ void ppcontext_done (ppcontext *context);
+
+It restores the context to its initial state, as after ``ppcontext_new()``. It means that the context
+is ready to produce another bunch of beings (in the example below, all objects from the next page contents).
+Once the context is not needed anymore::
+
+ void ppcontext_free (ppcontext *context);
+
+Now, contents stream parser functions take the context as an argument. Iterator form of contents stream parser
+that allows to process the contents operator by operator::
+
+ ppobj * ppcontents_first_op (ppcontext *context, ppstream *stream, size_t *psize, ppname *pname);
+ ppobj * ppcontents_next_op (ppcontext *context, ppstream *stream, size_t *psize, ppname *pname);
+
+Returned ``ppobj *`` is a pointer to operands list. ``*psize`` is the number of operands on stack.
+The operator itself is stored as ``*pname``.
+
+To parse the entire contents stream at once with no stop at every operator::
+
+ ppobj * ppcontents_parse (ppcontext *context, ppstream *stream, size_t *psize);
+
+Returns probably quite long list of all parsed objects (operands and operatos) in one piece.
+The number of objects is stored to ``*psize``.
+
+[Contents may contain so called inline images, that breaks a simple scheme of operands / operator syntax::
+
+ BI <keyval pairs> ID <binary image data> EI
+
+Contents parser treats this genuine triplet as a single piece, producing two operands (dict and string)
+followed by ``EI`` operator name.]
+
+Boxes
+-----
+
+Boxes (rectangles) in PDF are roughly 4-number arrays, but with a special intent.
+``pplib`` provides a basic interface for these special arrays::
+
+ typedef struct {
+ ppnum lx, ly, rx, ry;
+ } pprect;
+
+This type is used only by helper functions - PDF parser is not aware of the rectangle type.
+To convert ``pparray`` to ``pprect``::
+
+ pprect * pparray_to_rect (pparray *array, pprect *rect); // returns rect or NULL
+
+In example::
+
+ pprect rect;
+ if (pparray_to_rect(array, &rect) != NULL)
+ ; // do something with rect
+
+To get some image bounding box::
+
+ pprect * ppdict_get_rect (ppdict *dict, const char *name, pprect *rect);
+ // eg. ppdict_get_rect(imagedict, "BBox", &rect)
+
+To get some page box::
+
+ pprect * ppdict_get_box (ppdict *dict, const char *name, pprect *rect);
+ // eg. ppdict_get_box(pagedict, "MediaBox", &rect)
+
+The later not only checks the pagedict, but also goes through parent page nodes.
+
+Transforms
+----------
+
+Transformations are given as 6-number arrays, but with a special intent.
+``pplib`` provides a basic interface for these special arrays::
+
+ typedef struct {
+ ppnum xx, xy, yx, yy, x, y;
+ } ppmatrix;
+
+This type is used only by helper functions - PDF parser is not aware of the matrix type.
+To convert ``pparray`` to ``ppmatrix``::
+
+ ppmatrix * pparray_to_matrix (pparray *array, ppmatrix *matrix);
+
+In example::
+
+ ppmatrix matrix;
+ if (pparray_to_matrix(array, &matrix) != NULL)
+ ; // do something with matrix
+
+To get the matrix from dict::
+
+ ppmatrix * ppdict_get_matrix (ppdict *dict, const char *name, ppmatrix *matrix);
+ // eg. ppdict_get_matrix(imagedict, "Matrix", &matrix)
+
+Errors handling
+---------------
+
+``pplib`` is not verbose, but might happen that it needs to log some error message, eg. when parsing
+of some PDF boject fails due to invalid offsets. By default, ``pplib`` prints the message to stdout, eg.::
+
+ invalid 123 0 R object at offset 123123
+
+To replace the default logger, you can provide your own::
+
+ void pplog_callback (pplogger_callback logger, void *alien);
+
+``pplogger_callback`` is a function::
+
+ void your_callback (const char *message, void *alien);
+
+In example, to redirect messages to stderr you may define a function::
+
+ void your_callback (const char *message, void *alien)
+ {
+ fprintf((FILE *)alien, "\nooops: %s\n", message);
+ }
+
+Then set the callback somewhere before loading documents::
+
+ pplog_callback(your_callback, stderr);
+
+(example 2 uses that).
+
+To set the default log messages prefix, eg. ``pplib:``, use::
+
+ int pplog_prefix (const char *prefix)
+
+Default is empty. The function succeeds if provided prefix is reasonably short (less then 32 bytes).
diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/ppcode.rst.txt b/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/ppcode.rst.txt new file mode 100644 index 00000000000..06f5659c6b0 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/ppcode.rst.txt @@ -0,0 +1,64 @@ +Examples
+========
+
+Example 1
+---------
+
+.. literalinclude:: ../pptest1.c
+
+Example 2
+---------
+
+.. literalinclude:: ../pptest2.c
+
+Example 3
+---------
+
+.. literalinclude:: ../pptest3.c
+
+ppapi.h
+-------
+
+.. literalinclude:: ../ppapi.h
+
+
+Changes
+=======
+
+v0.97
+-----
+First release integrated with luatex sources, plus portability changes from Luigi.
+
+v0.98
+-----
+Changed references resolving in case of incremental updates; tech notes ppxref_find() in ppxref.c.
+
+v0.99
+-----
+Fixed streams handling; null characters should NOT be gobbled after "stream" keyword
+
+v1.00
+-----
+Fixed streams handling (Luigi); object streams updated before other streams
+Revised streams handling, ppstream API extended
+
+v1.01
+-----
+Fixed names handling (thanks Hans); digits after '#' weren't skipped
+
+v1.02
+-----
+Fixed page finder (thanks Luigi)
+
+v1.03
+-----
+Fixed TIFF predictor (thanks folks)
+
+v1.04
+-----
+Fixed TIFF predictor for ARM
+
+TODO
+====
+- external streams (egzotic)
+
diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/pplib.rst.txt b/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/pplib.rst.txt new file mode 100644 index 00000000000..9cf1e996bb2 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_sources/pplib.rst.txt @@ -0,0 +1,13 @@ +.. pplib documentation master file, created by
+ sphinx-quickstart on Thu Jun 07 14:23:51 2018.
+ You can adapt this file completely to your liking, but it should at least
+ contain the root `toctree` directive.
+
+pplib
+=====
+
+.. toctree::
+ :maxdepth: 2
+
+ ppapi
+ ppcode
diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/ajax-loader.gif b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/ajax-loader.gif Binary files differnew file mode 100644 index 00000000000..61faf8cab23 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/ajax-loader.gif diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/background_b01.png b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/background_b01.png Binary files differnew file mode 100644 index 00000000000..353f26dde08 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/background_b01.png diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/basic.css b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/basic.css new file mode 100644 index 00000000000..19ced1057ae --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/basic.css @@ -0,0 +1,665 @@ +/* + * basic.css + * ~~~~~~~~~ + * + * Sphinx stylesheet -- basic theme. + * + * :copyright: Copyright 2007-2018 by the Sphinx team, see AUTHORS. + * :license: BSD, see LICENSE for details. + * + */ + +/* -- main layout ----------------------------------------------------------- */ + +div.clearer { + clear: both; +} + +/* -- relbar ---------------------------------------------------------------- */ + +div.related { + width: 100%; + font-size: 90%; +} + +div.related h3 { + display: none; +} + +div.related ul { + margin: 0; + padding: 0 0 0 10px; + list-style: none; +} + +div.related li { + display: inline; +} + +div.related li.right { + float: right; + margin-right: 5px; +} + +/* -- sidebar --------------------------------------------------------------- */ + +div.sphinxsidebarwrapper { + padding: 10px 5px 0 10px; +} + +div.sphinxsidebar { + float: left; + width: 230px; + margin-left: -100%; + font-size: 90%; + word-wrap: break-word; + overflow-wrap : break-word; +} + +div.sphinxsidebar ul { + list-style: none; +} + +div.sphinxsidebar ul ul, +div.sphinxsidebar ul.want-points { + margin-left: 20px; + list-style: square; +} + +div.sphinxsidebar ul ul { + margin-top: 0; + margin-bottom: 0; +} + +div.sphinxsidebar form { + margin-top: 10px; +} + +div.sphinxsidebar input { + border: 1px solid #98dbcc; + font-family: sans-serif; + font-size: 1em; +} + +div.sphinxsidebar #searchbox input[type="text"] { + float: left; + width: 80%; + padding: 0.25em; + box-sizing: border-box; +} + +div.sphinxsidebar #searchbox input[type="submit"] { + float: left; + width: 20%; + border-left: none; + padding: 0.25em; + box-sizing: border-box; +} + + +img { + border: 0; + max-width: 100%; +} + +/* -- search page ----------------------------------------------------------- */ + +ul.search { + margin: 10px 0 0 20px; + padding: 0; +} + +ul.search li { + padding: 5px 0 5px 20px; + background-image: url(file.png); + background-repeat: no-repeat; + background-position: 0 7px; +} + +ul.search li a { + font-weight: bold; +} + +ul.search li div.context { + color: #888; + margin: 2px 0 0 30px; + text-align: left; +} + +ul.keywordmatches li.goodmatch a { + font-weight: bold; +} + +/* -- index page ------------------------------------------------------------ */ + +table.contentstable { + width: 90%; + margin-left: auto; + margin-right: auto; +} + +table.contentstable p.biglink { + line-height: 150%; +} + +a.biglink { + font-size: 1.3em; +} + +span.linkdescr { + font-style: italic; + padding-top: 5px; + font-size: 90%; +} + +/* -- general index --------------------------------------------------------- */ + +table.indextable { + width: 100%; +} + +table.indextable td { + text-align: left; + vertical-align: top; +} + +table.indextable ul { + margin-top: 0; + margin-bottom: 0; + list-style-type: none; +} + +table.indextable > tbody > tr > td > ul { + padding-left: 0em; +} + +table.indextable tr.pcap { + height: 10px; +} + +table.indextable tr.cap { + margin-top: 10px; + background-color: #f2f2f2; +} + +img.toggler { + margin-right: 3px; + margin-top: 3px; + cursor: pointer; +} + +div.modindex-jumpbox { + border-top: 1px solid #ddd; + border-bottom: 1px solid #ddd; + margin: 1em 0 1em 0; + padding: 0.4em; +} + +div.genindex-jumpbox { + border-top: 1px solid #ddd; + border-bottom: 1px solid #ddd; + margin: 1em 0 1em 0; + padding: 0.4em; +} + +/* -- domain module index --------------------------------------------------- */ + +table.modindextable td { + padding: 2px; + border-collapse: collapse; +} + +/* -- general body styles --------------------------------------------------- */ + +div.body { + min-width: 450px; + max-width: 800px; +} + +div.body p, div.body dd, div.body li, div.body blockquote { + -moz-hyphens: auto; + -ms-hyphens: auto; + -webkit-hyphens: auto; + hyphens: auto; +} + +a.headerlink { + visibility: hidden; +} + +h1:hover > a.headerlink, +h2:hover > a.headerlink, +h3:hover > a.headerlink, +h4:hover > a.headerlink, +h5:hover > a.headerlink, +h6:hover > a.headerlink, +dt:hover > a.headerlink, +caption:hover > a.headerlink, +p.caption:hover > a.headerlink, +div.code-block-caption:hover > a.headerlink { + visibility: visible; +} + +div.body p.caption { + text-align: inherit; +} + +div.body td { + text-align: left; +} + +.first { + margin-top: 0 !important; +} + +p.rubric { + margin-top: 30px; + font-weight: bold; +} + +img.align-left, .figure.align-left, object.align-left { + clear: left; + float: left; + margin-right: 1em; +} + +img.align-right, .figure.align-right, object.align-right { + clear: right; + float: right; + margin-left: 1em; +} + +img.align-center, .figure.align-center, object.align-center { + display: block; + margin-left: auto; + margin-right: auto; +} + +.align-left { + text-align: left; +} + +.align-center { + text-align: center; +} + +.align-right { + text-align: right; +} + +/* -- sidebars -------------------------------------------------------------- */ + +div.sidebar { + margin: 0 0 0.5em 1em; + border: 1px solid #ddb; + padding: 7px 7px 0 7px; + background-color: #ffe; + width: 40%; + float: right; +} + +p.sidebar-title { + font-weight: bold; +} + +/* -- topics ---------------------------------------------------------------- */ + +div.topic { + border: 1px solid #ccc; + padding: 7px 7px 0 7px; + margin: 10px 0 10px 0; +} + +p.topic-title { + font-size: 1.1em; + font-weight: bold; + margin-top: 10px; +} + +/* -- admonitions ----------------------------------------------------------- */ + +div.admonition { + margin-top: 10px; + margin-bottom: 10px; + padding: 7px; +} + +div.admonition dt { + font-weight: bold; +} + +div.admonition dl { + margin-bottom: 0; +} + +p.admonition-title { + margin: 0px 10px 5px 0px; + font-weight: bold; +} + +div.body p.centered { + text-align: center; + margin-top: 25px; +} + +/* -- tables ---------------------------------------------------------------- */ + +table.docutils { + border: 0; + border-collapse: collapse; +} + +table.align-center { + margin-left: auto; + margin-right: auto; +} + +table caption span.caption-number { + font-style: italic; +} + +table caption span.caption-text { +} + +table.docutils td, table.docutils th { + padding: 1px 8px 1px 5px; + border-top: 0; + border-left: 0; + border-right: 0; + border-bottom: 1px solid #aaa; +} + +table.footnote td, table.footnote th { + border: 0 !important; +} + +th { + text-align: left; + padding-right: 5px; +} + +table.citation { + border-left: solid 1px gray; + margin-left: 1px; +} + +table.citation td { + border-bottom: none; +} + +/* -- figures --------------------------------------------------------------- */ + +div.figure { + margin: 0.5em; + padding: 0.5em; +} + +div.figure p.caption { + padding: 0.3em; +} + +div.figure p.caption span.caption-number { + font-style: italic; +} + +div.figure p.caption span.caption-text { +} + +/* -- field list styles ----------------------------------------------------- */ + +table.field-list td, table.field-list th { + border: 0 !important; +} + +.field-list ul { + margin: 0; + padding-left: 1em; +} + +.field-list p { + margin: 0; +} + +.field-name { + -moz-hyphens: manual; + -ms-hyphens: manual; + -webkit-hyphens: manual; + hyphens: manual; +} + +/* -- other body styles ----------------------------------------------------- */ + +ol.arabic { + list-style: decimal; +} + +ol.loweralpha { + list-style: lower-alpha; +} + +ol.upperalpha { + list-style: upper-alpha; +} + +ol.lowerroman { + list-style: lower-roman; +} + +ol.upperroman { + list-style: upper-roman; +} + +dl { + margin-bottom: 15px; +} + +dd p { + margin-top: 0px; +} + +dd ul, dd table { + margin-bottom: 10px; +} + +dd { + margin-top: 3px; + margin-bottom: 10px; + margin-left: 30px; +} + +dt:target, span.highlighted { + background-color: #fbe54e; +} + +rect.highlighted { + fill: #fbe54e; +} + +dl.glossary dt { + font-weight: bold; + font-size: 1.1em; +} + +.optional { + font-size: 1.3em; +} + +.sig-paren { + font-size: larger; +} + +.versionmodified { + font-style: italic; +} + +.system-message { + background-color: #fda; + padding: 5px; + border: 3px solid red; +} + +.footnote:target { + background-color: #ffa; +} + +.line-block { + display: block; + margin-top: 1em; + margin-bottom: 1em; +} + +.line-block .line-block { + margin-top: 0; + margin-bottom: 0; + margin-left: 1.5em; +} + +.guilabel, .menuselection { + font-family: sans-serif; +} + +.accelerator { + text-decoration: underline; +} + +.classifier { + font-style: oblique; +} + +abbr, acronym { + border-bottom: dotted 1px; + cursor: help; +} + +/* -- code displays --------------------------------------------------------- */ + +pre { + overflow: auto; + overflow-y: hidden; /* fixes display issues on Chrome browsers */ +} + +span.pre { + -moz-hyphens: none; + -ms-hyphens: none; + -webkit-hyphens: none; + hyphens: none; +} + +td.linenos pre { + padding: 5px 0px; + border: 0; + background-color: transparent; + color: #aaa; +} + +table.highlighttable { + margin-left: 0.5em; +} + +table.highlighttable td { + padding: 0 0.5em 0 0.5em; +} + +div.code-block-caption { + padding: 2px 5px; + font-size: small; +} + +div.code-block-caption code { + background-color: transparent; +} + +div.code-block-caption + div > div.highlight > pre { + margin-top: 0; +} + +div.code-block-caption span.caption-number { + padding: 0.1em 0.3em; + font-style: italic; +} + +div.code-block-caption span.caption-text { +} + +div.literal-block-wrapper { + padding: 1em 1em 0; +} + +div.literal-block-wrapper div.highlight { + margin: 0; +} + +code.descname { + background-color: transparent; + font-weight: bold; + font-size: 1.2em; +} + +code.descclassname { + background-color: transparent; +} + +code.xref, a code { + background-color: transparent; + font-weight: bold; +} + +h1 code, h2 code, h3 code, h4 code, h5 code, h6 code { + background-color: transparent; +} + +.viewcode-link { + float: right; +} + +.viewcode-back { + float: right; + font-family: sans-serif; +} + +div.viewcode-block:target { + margin: -1px -10px; + padding: 0 10px; +} + +/* -- math display ---------------------------------------------------------- */ + +img.math { + vertical-align: middle; +} + +div.body div.math p { + text-align: center; +} + +span.eqno { + float: right; +} + +span.eqno a.headerlink { + position: relative; + left: 0px; + z-index: 1; +} + +div.math:hover a.headerlink { + visibility: visible; +} + +/* -- printout stylesheet --------------------------------------------------- */ + +@media print { + div.document, + div.documentwrapper, + div.bodywrapper { + margin: 0 !important; + width: 100%; + } + + div.sphinxsidebar, + div.related, + div.footer, + #top-link { + display: none; + } +}
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n=document.createElement("div");n.style.position="absolute";n.style.top="-9999em";n.style.overflow="scroll";document.body.appendChild(n);d=n.offsetWidth-n.clientWidth;document.body.removeChild(n)}var r;var s=function(){var n=cssHelper.getViewportWidth();var s=cssHelper.getViewportHeight();if(Math.abs(n-e)>d||Math.abs(s-t)>d){e=n;t=s;clearTimeout(r);r=setTimeout(function(){if(!i()){p()}else{cssHelper.broadcast("cssMediaQueriesTested")}},500)}};window.onresize=function(){var e=window.onresize||function(){};return function(){e();s()}}()};var m=document.documentElement;m.style.marginLeft="-32767px";setTimeout(function(){m.style.marginLeft=""},5e3);return function(){if(!i()){cssHelper.addListener("newStyleParsed",function(e){c(e.cssHelperParsed.stylesheet)});cssHelper.addListener("cssMediaQueriesTested",function(){if(ua.ie){m.style.width="1px"}setTimeout(function(){m.style.width="";m.style.marginLeft=""},0);cssHelper.removeListener("cssMediaQueriesTested",arguments.callee)});s();p()}else{m.style.marginLeft=""}v()}}());try{document.execCommand("BackgroundImageCache",false,true)}catch(e){} diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/css3-mediaqueries_src.js b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/css3-mediaqueries_src.js new file mode 100644 index 00000000000..f21dd4949aa --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/css3-mediaqueries_src.js @@ -0,0 +1,1104 @@ +/* +css3-mediaqueries.js - CSS Helper and CSS3 Media Queries Enabler + +author: Wouter van der Graaf <wouter at dynora nl> +version: 1.0 (20110330) +license: MIT +website: http://code.google.com/p/css3-mediaqueries-js/ + +W3C spec: http://www.w3.org/TR/css3-mediaqueries/ + +Note: use of embedded <style> is not recommended when using media queries, because IE has no way of returning the raw literal css text from a <style> element. +*/ + + +// true prototypal inheritance (http://javascript.crockford.com/prototypal.html) +if (typeof Object.create !== 'function') { + Object.create = function (o) { + function F() {} + F.prototype = o; + return new F(); + }; +} + + +// user agent sniffing shortcuts +var ua = { + toString: function () { + return navigator.userAgent; + }, + test: function (s) { + return this.toString().toLowerCase().indexOf(s.toLowerCase()) > -1; + } +}; +ua.version = (ua.toString().toLowerCase().match(/[\s\S]+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1]; +ua.webkit = ua.test('webkit'); +ua.gecko = ua.test('gecko') && !ua.webkit; +ua.opera = ua.test('opera'); +ua.ie = ua.test('msie') && !ua.opera; +ua.ie6 = ua.ie && document.compatMode && typeof document.documentElement.style.maxHeight === 'undefined'; +ua.ie7 = ua.ie && document.documentElement && typeof document.documentElement.style.maxHeight !== 'undefined' && typeof XDomainRequest === 'undefined'; +ua.ie8 = ua.ie && typeof XDomainRequest !== 'undefined'; + + + +// initialize when DOM content is loaded +var domReady = function () { + var fns = []; + var init = function () { + if (!arguments.callee.done) { // run init functions once + arguments.callee.done = true; + for (var i = 0; i < fns.length; i++) { + fns[i](); + } + } + }; + + // listeners for different browsers + if (document.addEventListener) { + document.addEventListener('DOMContentLoaded', init, false); + } + if (ua.ie) { + (function () { + try { + // throws errors until after ondocumentready + document.documentElement.doScroll('left'); + } + catch (e) { + setTimeout(arguments.callee, 50); + return; + } + // no errors, fire + init(); + })(); + // trying to always fire before onload + document.onreadystatechange = function () { + if (document.readyState === 'complete') { + document.onreadystatechange = null; + init(); + } + }; + } + if (ua.webkit && document.readyState) { + (function () { + if (document.readyState !== 'loading') { + init(); + } + else { + setTimeout(arguments.callee, 10); + } + })(); + } + window.onload = init; // fallback + + return function (fn) { // add fn to init functions + if (typeof fn === 'function') { + fns[fns.length] = fn; + } + return fn; + }; +}(); + + + +// helper library for parsing css to objects +var cssHelper = function () { + + var regExp = { + BLOCKS: /[^\s{;][^{;]*\{(?:[^{}]*\{[^{}]*\}[^{}]*|[^{}]*)*\}/g, + BLOCKS_INSIDE: /[^\s{][^{]*\{[^{}]*\}/g, + DECLARATIONS: /[a-zA-Z\-]+[^;]*:[^;]+;/g, + RELATIVE_URLS: /url\(['"]?([^\/\)'"][^:\)'"]+)['"]?\)/g, + // strip whitespace and comments, @import is evil + REDUNDANT_COMPONENTS: /(?:\/\*([^*\\\\]|\*(?!\/))+\*\/|@import[^;]+;)/g, + REDUNDANT_WHITESPACE: /\s*(,|:|;|\{|\})\s*/g, + WHITESPACE_IN_PARENTHESES: /\(\s*(\S*)\s*\)/g, + MORE_WHITESPACE: /\s{2,}/g, + FINAL_SEMICOLONS: /;\}/g, + NOT_WHITESPACE: /\S+/g + }; + + var parsed, parsing = false; + + var waiting = []; + var wait = function (fn) { + if (typeof fn === 'function') { + waiting[waiting.length] = fn; + } + }; + var ready = function () { + for (var i = 0; i < waiting.length; i++) { + waiting[i](parsed); + } + }; + var events = {}; + var broadcast = function (n, v) { + if (events[n]) { + var listeners = events[n].listeners; + if (listeners) { + for (var i = 0; i < listeners.length; i++) { + listeners[i](v); + } + } + } + }; + + var requestText = function (url, fnSuccess, fnFailure) { + if (ua.ie && !window.XMLHttpRequest) { + window.XMLHttpRequest = function () { + return new ActiveXObject('Microsoft.XMLHTTP'); + }; + } + if (!XMLHttpRequest) { + return ''; + } + var r = new XMLHttpRequest(); + try { + r.open('get', url, true); + r.setRequestHeader('X_REQUESTED_WITH', 'XMLHttpRequest'); + } + catch (e) { + fnFailure(); + return; + } + var done = false; + setTimeout(function () { + done = true; + }, 5000); + document.documentElement.style.cursor = 'progress'; + r.onreadystatechange = function () { + if (r.readyState === 4 && !done) { + if (!r.status && location.protocol === 'file:' || + (r.status >= 200 && r.status < 300) || + r.status === 304 || + navigator.userAgent.indexOf('Safari') > -1 && typeof r.status === 'undefined') { + fnSuccess(r.responseText); + } + else { + fnFailure(); + } + document.documentElement.style.cursor = ''; + r = null; // avoid memory leaks + } + }; + r.send(''); + }; + + var sanitize = function (text) { + text = text.replace(regExp.REDUNDANT_COMPONENTS, ''); + text = text.replace(regExp.REDUNDANT_WHITESPACE, '$1'); + text = text.replace(regExp.WHITESPACE_IN_PARENTHESES, '($1)'); + text = text.replace(regExp.MORE_WHITESPACE, ' '); + text = text.replace(regExp.FINAL_SEMICOLONS, '}'); // optional final semicolons + return text; + }; + + var objects = { + stylesheet: function (el) { + var o = {}; + var amqs = [], mqls = [], rs = [], rsw = []; + var s = el.cssHelperText; + + // add attribute media queries + var attr = el.getAttribute('media'); + if (attr) { + var qts = attr.toLowerCase().split(',') + } + else { + var qts = ['all'] // imply 'all' + } + for (var i = 0; i < qts.length; i++) { + amqs[amqs.length] = objects.mediaQuery(qts[i], o); + } + + // add media query lists and rules (top down order) + var blocks = s.match(regExp.BLOCKS); // @charset is not a block + if (blocks !== null) { + for (var i = 0; i < blocks.length; i++) { + if (blocks[i].substring(0, 7) === '@media ') { // media query (list) + var mql = objects.mediaQueryList(blocks[i], o); + rs = rs.concat(mql.getRules()); + mqls[mqls.length] = mql; + } + else { // regular rule set, page context (@page) or font description (@font-face) + rs[rs.length] = rsw[rsw.length] = objects.rule(blocks[i], o, null); + } + } + } + + o.element = el; + o.getCssText = function () { + return s; + }; + o.getAttrMediaQueries = function () { + return amqs; + }; + o.getMediaQueryLists = function () { + return mqls; + }; + o.getRules = function () { + return rs; + }; + o.getRulesWithoutMQ = function () { + return rsw; + }; + return o; + }, + + mediaQueryList: function (s, stsh) { + var o = {}; + var idx = s.indexOf('{'); + var lt = s.substring(0, idx); + s = s.substring(idx + 1, s.length - 1); + var mqs = [], rs = []; + + // add media queries + var qts = lt.toLowerCase().substring(7).split(','); + for (var i = 0; i < qts.length; i++) { // parse each media query + mqs[mqs.length] = objects.mediaQuery(qts[i], o); + } + + // add rule sets + var rts = s.match(regExp.BLOCKS_INSIDE); + if (rts !== null) { + for (i = 0; i < rts.length; i++) { + rs[rs.length] = objects.rule(rts[i], stsh, o); + } + } + + o.type = 'mediaQueryList'; + o.getMediaQueries = function () { + return mqs; + }; + o.getRules = function () { + return rs; + }; + o.getListText = function () { + return lt; + }; + o.getCssText = function () { + return s; + }; + return o; + }, + + mediaQuery: function (s, listOrSheet) { + s = s || ''; + var mql, stsh; + if (listOrSheet.type === 'mediaQueryList') { + mql = listOrSheet; + } + else { + stsh = listOrSheet; + } + var not = false, type; + var expr = []; + var valid = true; + var tokens = s.match(regExp.NOT_WHITESPACE); + + + + for (var i = 0; i < tokens.length; i++) { + var token = tokens[i]; + if (!type && (token === 'not' || token === 'only')) { // 'not' and 'only' keywords + // keyword 'only' does nothing, as if it was not present + if (token === 'not') { + not = true; + } + } + else if (!type) { // media type + type = token; + } + else if (token.charAt(0) === '(') { // media feature expression + var pair = token.substring(1, token.length - 1).split(':'); + expr[expr.length] = { + mediaFeature: pair[0], + value: pair[1] || null + }; + } + } + + return { + getQueryText: function () { + return s; + }, + getAttrStyleSheet: function () { + return stsh || null; + }, + getList: function () { + return mql || null; + }, + getValid: function () { + return valid; + }, + getNot: function () { + return not; + }, + getMediaType: function () { + return type; + }, + getExpressions: function () { + return expr; + } + }; + }, + + rule: function (s, stsh, mql) { + var o = {}; + var idx = s.indexOf('{'); + var st = s.substring(0, idx); + var ss = st.split(','); + var ds = []; + var dts = s.substring(idx + 1, s.length - 1).split(';'); + for (var i = 0; i < dts.length; i++) { + ds[ds.length] = objects.declaration(dts[i], o); + } + + o.getStylesheet = function () { + return stsh || null; + }; + o.getMediaQueryList = function () { + return mql || null; + }; + o.getSelectors = function () { + return ss; + }; + o.getSelectorText = function () { + return st; + }; + o.getDeclarations = function () { + return ds; + }; + o.getPropertyValue = function (n) { + for (var i = 0; i < ds.length; i++) { + if (ds[i].getProperty() === n) { + return ds[i].getValue(); + } + } + return null; + }; + return o; + }, + + declaration: function (s, r) { + var idx = s.indexOf(':'); + var p = s.substring(0, idx); + var v = s.substring(idx + 1); + return { + getRule: function () { + return r || null; + }, + getProperty: function () { + return p; + }, + getValue: function () { + return v; + } + }; + } + }; + + var parseText = function (el) { + if (typeof el.cssHelperText !== 'string') { + return; + } + var o = { + stylesheet: null, + mediaQueryLists: [], + rules: [], + selectors: {}, + declarations: [], + properties: {} + }; + + // build stylesheet object + var stsh = o.stylesheet = objects.stylesheet(el); + + // collect media query lists + var mqls = o.mediaQueryLists = stsh.getMediaQueryLists(); + + // collect all rules + var ors = o.rules = stsh.getRules(); + + // collect all selectors + var oss = o.selectors; + var collectSelectors = function (r) { + var ss = r.getSelectors(); + for (var i = 0; i < ss.length; i++) { + var n = ss[i]; + if (!oss[n]) { + oss[n] = []; + } + oss[n][oss[n].length] = r; + } + }; + for (var i = 0; i < ors.length; i++) { + collectSelectors(ors[i]); + } + + // collect all declarations + var ods = o.declarations; + for (i = 0; i < ors.length; i++) { + ods = o.declarations = ods.concat(ors[i].getDeclarations()); + } + + // collect all properties + var ops = o.properties; + for (i = 0; i < ods.length; i++) { + var n = ods[i].getProperty(); + if (!ops[n]) { + ops[n] = []; + } + ops[n][ops[n].length] = ods[i]; + } + + el.cssHelperParsed = o; + parsed[parsed.length] = el; + return o; + }; + + var parseEmbedded = function (el, s) { + return; + // This function doesn't work because of a bug in IE, where innerHTML gives us parsed css instead of raw literal. + el.cssHelperText = sanitize(s || el.innerHTML); + return parseText(el); + }; + + var parse = function () { + parsing = true; + parsed = []; + var linked = []; + var finish = function () { + for (var i = 0; i < linked.length; i++) { + parseText(linked[i]); + } + var styles = document.getElementsByTagName('style'); + for (i = 0; i < styles.length; i++) { + parseEmbedded(styles[i]); + } + parsing = false; + ready(); + }; + var links = document.getElementsByTagName('link'); + for (var i = 0; i < links.length; i++) { + var link = links[i]; + if (link.getAttribute('rel').indexOf('style') > -1 && link.href && link.href.length !== 0 && !link.disabled) { + linked[linked.length] = link; + } + } + if (linked.length > 0) { + var c = 0; + var checkForFinish = function () { + c++; + if (c === linked.length) { // parse in right order, so after last link is read + finish(); + } + }; + var processLink = function (link) { + var href = link.href; + requestText(href, function (text) { + // fix url's + text = sanitize(text).replace(regExp.RELATIVE_URLS, 'url(' + href.substring(0, href.lastIndexOf('/')) + '/$1)'); + link.cssHelperText = text; + checkForFinish(); + }, checkForFinish); + }; + for (i = 0; i < linked.length; i++) { + processLink(linked[i]); + } + } + else { + finish(); + } + }; + + var types = { + stylesheets: 'array', + mediaQueryLists: 'array', + rules: 'array', + selectors: 'object', + declarations: 'array', + properties: 'object' + }; + + var collections = { + stylesheets: null, + mediaQueryLists: null, + rules: null, + selectors: null, + declarations: null, + properties: null + }; + + var addToCollection = function (name, v) { + if (collections[name] !== null) { + if (types[name] === 'array') { + return (collections[name] = collections[name].concat(v)); + } + else { + var c = collections[name]; + for (var n in v) { + if (v.hasOwnProperty(n)) { + if (!c[n]) { + c[n] = v[n]; + } + else { + c[n] = c[n].concat(v[n]); + } + } + } + return c; + } + } + }; + + var collect = function (name) { + collections[name] = (types[name] === 'array') ? [] : {}; + for (var i = 0; i < parsed.length; i++) { + var pname = name === 'stylesheets' ? 'stylesheet' : name; // the exception + addToCollection(name, parsed[i].cssHelperParsed[pname]); + } + return collections[name]; + }; + + // viewport size + var getViewportSize = function (d) { + if (typeof window.innerWidth != 'undefined') { + return window['inner' + d]; + } + else if (typeof document.documentElement !== 'undefined' + && typeof document.documentElement.clientWidth !== 'undefined' + && document.documentElement.clientWidth != 0) { + return document.documentElement['client' + d]; + } + }; + + // public static functions + return { + addStyle: function (s, mediaTypes, process) { + var el = document.createElement('style'); + el.setAttribute('type', 'text/css'); + if (mediaTypes && mediaTypes.length > 0) { + el.setAttribute('media', mediaTypes.join(',')); + } + document.getElementsByTagName('head')[0].appendChild(el); + if (el.styleSheet) { // IE + el.styleSheet.cssText = s; + } + else { + el.appendChild(document.createTextNode(s)); + } + el.addedWithCssHelper = true; + if (typeof process === 'undefined' || process === true) { + cssHelper.parsed(function (parsed) { + var o = parseEmbedded(el, s); + for (var n in o) { + if (o.hasOwnProperty(n)) { + addToCollection(n, o[n]); + } + } + broadcast('newStyleParsed', el); + }); + } + else { + el.parsingDisallowed = true; + } + return el; + }, + + removeStyle: function (el) { + return el.parentNode.removeChild(el); + }, + + parsed: function (fn) { + if (parsing) { + wait(fn); + } + else { + if (typeof parsed !== 'undefined') { + if (typeof fn === 'function') { + fn(parsed); + } + } + else { + wait(fn); + parse(); + } + } + }, + + stylesheets: function (fn) { + cssHelper.parsed(function (parsed) { + fn(collections.stylesheets || collect('stylesheets')); + }); + }, + + mediaQueryLists: function (fn) { + cssHelper.parsed(function (parsed) { + fn(collections.mediaQueryLists || collect('mediaQueryLists')); + }); + }, + + rules: function (fn) { + cssHelper.parsed(function (parsed) { + fn(collections.rules || collect('rules')); + }); + }, + + selectors: function (fn) { + cssHelper.parsed(function (parsed) { + fn(collections.selectors || collect('selectors')); + }); + }, + + declarations: function (fn) { + cssHelper.parsed(function (parsed) { + fn(collections.declarations || collect('declarations')); + }); + }, + + properties: function (fn) { + cssHelper.parsed(function (parsed) { + fn(collections.properties || collect('properties')); + }); + }, + + broadcast: broadcast, + + addListener: function (n, fn) { // in case n is 'styleadd': added function is called everytime style is added and parsed + if (typeof fn === 'function') { + if (!events[n]) { + events[n] = { + listeners: [] + }; + } + events[n].listeners[events[n].listeners.length] = fn; + } + }, + + removeListener: function (n, fn) { + if (typeof fn === 'function' && events[n]) { + var ls = events[n].listeners; + for (var i = 0; i < ls.length; i++) { + if (ls[i] === fn) { + ls.splice(i, 1); + i -= 1; + } + } + } + }, + + getViewportWidth: function () { + return getViewportSize('Width'); + }, + + getViewportHeight: function () { + return getViewportSize('Height'); + } + }; +}(); + + + +// function to test and apply parsed media queries against browser capabilities +domReady(function enableCssMediaQueries() { + var meter; + + var regExp = { + LENGTH_UNIT: /[0-9]+(em|ex|px|in|cm|mm|pt|pc)$/, + RESOLUTION_UNIT: /[0-9]+(dpi|dpcm)$/, + ASPECT_RATIO: /^[0-9]+\/[0-9]+$/, + ABSOLUTE_VALUE: /^[0-9]*(\.[0-9]+)*$/ + }; + + var styles = []; + + var nativeSupport = function () { + // check support for media queries + var id = 'css3-mediaqueries-test'; + var el = document.createElement('div'); + el.id = id; + var style = cssHelper.addStyle('@media all and (width) { #' + id + + ' { width: 1px !important; } }', [], false); // false means don't parse this temp style + document.body.appendChild(el); + var ret = el.offsetWidth === 1; + style.parentNode.removeChild(style); + el.parentNode.removeChild(el); + nativeSupport = function () { + return ret; + }; + return ret; + }; + + var createMeter = function () { // create measuring element + meter = document.createElement('div'); + meter.style.cssText = 'position:absolute;top:-9999em;left:-9999em;' + + 'margin:0;border:none;padding:0;width:1em;font-size:1em;'; // cssText is needed for IE, works for the others + document.body.appendChild(meter); + // meter must have browser default font size of 16px + if (meter.offsetWidth !== 16) { + meter.style.fontSize = 16 / meter.offsetWidth + 'em'; + } + meter.style.width = ''; + }; + + var measure = function (value) { + meter.style.width = value; + var amount = meter.offsetWidth; + meter.style.width = ''; + return amount; + }; + + var testMediaFeature = function (feature, value) { + // non-testable features: monochrome|min-monochrome|max-monochrome|scan|grid + var l = feature.length; + var min = (feature.substring(0, 4) === 'min-'); + var max = (!min && feature.substring(0, 4) === 'max-'); + + if (value !== null) { // determine value type and parse to usable amount + var valueType; + var amount; + if (regExp.LENGTH_UNIT.exec(value)) { + valueType = 'length'; + amount = measure(value); + } + else if (regExp.RESOLUTION_UNIT.exec(value)) { + valueType = 'resolution'; + amount = parseInt(value, 10); + var unit = value.substring((amount + '').length); + } + else if (regExp.ASPECT_RATIO.exec(value)) { + valueType = 'aspect-ratio'; + amount = value.split('/'); + } + else if (regExp.ABSOLUTE_VALUE) { + valueType = 'absolute'; + amount = value; + } + else { + valueType = 'unknown'; + } + } + + var width, height; + if ('device-width' === feature.substring(l - 12, l)) { // screen width + width = screen.width; + if (value !== null) { + if (valueType === 'length') { + return ((min && width >= amount) || (max && width < amount) || (!min && !max && width === amount)); + } + else { + return false; + } + } + else { // test width without value + return width > 0; + } + } + else if ('device-height' === feature.substring(l - 13, l)) { // screen height + height = screen.height; + if (value !== null) { + if (valueType === 'length') { + return ((min && height >= amount) || (max && height < amount) || (!min && !max && height === amount)); + } + else { + return false; + } + } + else { // test height without value + return height > 0; + } + } + else if ('width' === feature.substring(l - 5, l)) { // viewport width + width = document.documentElement.clientWidth || document.body.clientWidth; // the latter for IE quirks mode + if (value !== null) { + if (valueType === 'length') { + return ((min && width >= amount) || (max && width < amount) || (!min && !max && width === amount)); + } + else { + return false; + } + } + else { // test width without value + return width > 0; + } + } + else if ('height' === feature.substring(l - 6, l)) { // viewport height + height = document.documentElement.clientHeight || document.body.clientHeight; // the latter for IE quirks mode + if (value !== null) { + if (valueType === 'length') { + return ((min && height >= amount) || (max && height < amount) || (!min && !max && height === amount)); + } + else { + return false; + } + } + else { // test height without value + return height > 0; + } + } + else if ('device-aspect-ratio' === feature.substring(l - 19, l)) { // screen aspect ratio + return valueType === 'aspect-ratio' && screen.width * amount[1] === screen.height * amount[0]; + } + else if ('color-index' === feature.substring(l - 11, l)) { // number of colors + var colors = Math.pow(2, screen.colorDepth); + if (value !== null) { + if (valueType === 'absolute') { + return ((min && colors >= amount) || (max && colors < amount) || (!min && !max && colors === amount)); + } + else { + return false; + } + } + else { // test height without value + return colors > 0; + } + } + else if ('color' === feature.substring(l - 5, l)) { // bits per color component + var color = screen.colorDepth; + if (value !== null) { + if (valueType === 'absolute') { + return ((min && color >= amount) || (max && color < amount) || (!min && !max && color === amount)); + } + else { + return false; + } + } + else { // test height without value + return color > 0; + } + } + else if ('resolution' === feature.substring(l - 10, l)) { + var res; + if (unit === 'dpcm') { + res = measure('1cm'); + } + else { + res = measure('1in'); + } + if (value !== null) { + if (valueType === 'resolution') { + return ((min && res >= amount) || (max && res < amount) || (!min && !max && res === amount)); + } + else { + return false; + } + } + else { // test height without value + return res > 0; + } + } + else { + return false; + } + }; + + var testMediaQuery = function (mq) { + var test = mq.getValid(); + var expressions = mq.getExpressions(); + var l = expressions.length; + if (l > 0) { + for (var i = 0; i < l && test; i++) { + test = testMediaFeature(expressions[i].mediaFeature, expressions[i].value); + } + var not = mq.getNot(); + return (test && !not || not && !test); + } + return test; + }; + + var testMediaQueryList = function (mql, ts) { + // ts is null or an array with any media type but 'all'. + var mqs = mql.getMediaQueries(); + var t = {}; + for (var i = 0; i < mqs.length; i++) { + var type = mqs[i].getMediaType(); + if (mqs[i].getExpressions().length === 0) { + continue; + // TODO: Browser check! Assuming old browsers do apply the bare media types, even in a list with media queries. + } + var typeAllowed = true; + if (type !== 'all' && ts && ts.length > 0) { + typeAllowed = false; + for (var j = 0; j < ts.length; j++) { + if (ts[j] === type) { + typeAllowed = true; + } + } + } + if (typeAllowed && testMediaQuery(mqs[i])) { + t[type] = true; + } + } + var s = [], c = 0; + for (var n in t) { + if (t.hasOwnProperty(n)) { + if (c > 0) { + s[c++] = ','; + } + s[c++] = n; + } + } + if (s.length > 0) { + styles[styles.length] = cssHelper.addStyle('@media ' + s.join('') + '{' + mql.getCssText() + '}', ts, false); + } + }; + + var testMediaQueryLists = function (mqls, ts) { + for (var i = 0; i < mqls.length; i++) { + testMediaQueryList(mqls[i], ts); + } + }; + + var testStylesheet = function (stsh) { + var amqs = stsh.getAttrMediaQueries(); + var allPassed = false; + var t = {}; + for (var i = 0; i < amqs.length; i++) { + if (testMediaQuery(amqs[i])) { + t[amqs[i].getMediaType()] = amqs[i].getExpressions().length > 0; + } + } + var ts = [], tswe = []; + for (var n in t) { + if (t.hasOwnProperty(n)) { + ts[ts.length] = n; + if (t[n]) { + tswe[tswe.length] = n + } + if (n === 'all') { + allPassed = true; + } + } + } + if (tswe.length > 0) { // types with query expressions that passed the test + styles[styles.length] = cssHelper.addStyle(stsh.getCssText(), tswe, false); + } + var mqls = stsh.getMediaQueryLists(); + if (allPassed) { + // If 'all' in media attribute passed the test, then test all @media types in linked CSS and create style with those types. + testMediaQueryLists(mqls); + } + else { + // Or else, test only media attribute types that passed the test and also 'all'. + // For positive '@media all', create style with attribute types that passed their test. + testMediaQueryLists(mqls, ts); + } + }; + + var testStylesheets = function (stshs) { + for (var i = 0; i < stshs.length; i++) { + testStylesheet(stshs[i]); + } + if (ua.ie) { + // force repaint in IE + document.documentElement.style.display = 'block'; + setTimeout(function () { + document.documentElement.style.display = ''; + }, 0); + // delay broadcast somewhat for IE + setTimeout(function () { + cssHelper.broadcast('cssMediaQueriesTested'); + }, 100); + } + else { + cssHelper.broadcast('cssMediaQueriesTested'); + } + }; + + var test = function () { + for (var i = 0; i < styles.length; i++) { + cssHelper.removeStyle(styles[i]); + } + styles = []; + cssHelper.stylesheets(testStylesheets); + }; + + var scrollbarWidth = 0; + var checkForResize = function () { + var cvpw = cssHelper.getViewportWidth(); + var cvph = cssHelper.getViewportHeight(); + + // determine scrollbar width in IE, see resizeHandler + if (ua.ie) { + var el = document.createElement('div'); + el.style.position = 'absolute'; + el.style.top = '-9999em'; + el.style.overflow = 'scroll'; + document.body.appendChild(el); + scrollbarWidth = el.offsetWidth - el.clientWidth; + document.body.removeChild(el); + } + + var timer; + var resizeHandler = function () { + var vpw = cssHelper.getViewportWidth(); + var vph = cssHelper.getViewportHeight(); + // check whether vp size has really changed, because IE also triggers resize event when body size changes + // 20px allowance to accomodate short appearance of scrollbars in IE in some cases + if (Math.abs(vpw - cvpw) > scrollbarWidth || Math.abs(vph - cvph) > scrollbarWidth) { + cvpw = vpw; + cvph = vph; + clearTimeout(timer); + timer = setTimeout(function () { + if (!nativeSupport()) { + test(); + } + else { + cssHelper.broadcast('cssMediaQueriesTested'); + } + }, 500); + } + }; + + window.onresize = function () { + var x = window.onresize || function () {}; // save original + return function () { + x(); + resizeHandler(); + }; + }(); + }; + + // prevent jumping of layout by hiding everything before painting <body> + var docEl = document.documentElement; + docEl.style.marginLeft = '-32767px'; + + // make sure it comes back after a while + setTimeout(function () { + docEl.style.marginLeft = ''; + }, 5000); + + return function () { + if (!nativeSupport()) { // if browser doesn't support media queries + cssHelper.addListener('newStyleParsed', function (el) { + testStylesheet(el.cssHelperParsed.stylesheet); + }); + // return visibility after media queries are tested + cssHelper.addListener('cssMediaQueriesTested', function () { + // force repaint in IE by changing width + if (ua.ie) { + docEl.style.width = '1px'; + } + setTimeout(function () { + docEl.style.width = ''; // undo width + docEl.style.marginLeft = ''; // undo hide + }, 0); + // remove this listener to prevent following execution + cssHelper.removeListener('cssMediaQueriesTested', arguments.callee); + }); + createMeter(); + test(); + } + else { + docEl.style.marginLeft = ''; // undo visibility hidden + } + checkForResize(); + }; +}()); + + +// bonus: hotfix for IE6 SP1 (bug KB823727) +try { + document.execCommand('BackgroundImageCache', false, true); +} catch (e) {} diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/doctools.js b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/doctools.js new file mode 100644 index 00000000000..d8928926bf2 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/doctools.js @@ -0,0 +1,313 @@ +/* + * doctools.js + * ~~~~~~~~~~~ + * + * Sphinx JavaScript utilities for all documentation. + * + * :copyright: Copyright 2007-2018 by the Sphinx team, see AUTHORS. + * :license: BSD, see LICENSE for details. + * + */ + +/** + * select a different prefix for underscore + */ +$u = _.noConflict(); + +/** + * make the code below compatible with browsers without + * an installed firebug like debugger +if (!window.console || !console.firebug) { + var names = ["log", "debug", "info", "warn", "error", "assert", "dir", + "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace", + "profile", "profileEnd"]; + window.console = {}; + for (var i = 0; i < names.length; ++i) + window.console[names[i]] = function() {}; +} + */ + +/** + * small helper function to urldecode strings + */ +jQuery.urldecode = function(x) { + return decodeURIComponent(x).replace(/\+/g, ' '); +}; + +/** + * small helper function to urlencode strings + */ +jQuery.urlencode = encodeURIComponent; + +/** + * This function returns the parsed url parameters of the + * current request. Multiple values per key are supported, + * it will always return arrays of strings for the value parts. + */ +jQuery.getQueryParameters = function(s) { + if (typeof s === 'undefined') + s = document.location.search; + var parts = s.substr(s.indexOf('?') + 1).split('&'); + var result = {}; + for (var i = 0; i < parts.length; i++) { + var tmp = parts[i].split('=', 2); + var key = jQuery.urldecode(tmp[0]); + var value = jQuery.urldecode(tmp[1]); + if (key in result) + result[key].push(value); + else + result[key] = [value]; + } + return result; +}; + +/** + * highlight a given string on a jquery object by wrapping it in + * span elements with the given class name. + */ +jQuery.fn.highlightText = function(text, className) { + function highlight(node, addItems) { + if (node.nodeType === 3) { + var val = node.nodeValue; + var pos = val.toLowerCase().indexOf(text); + if (pos >= 0 && + !jQuery(node.parentNode).hasClass(className) && + !jQuery(node.parentNode).hasClass("nohighlight")) { + var span; + var isInSVG = jQuery(node).closest("body, svg, foreignObject").is("svg"); + if (isInSVG) { + span = document.createElementNS("http://www.w3.org/2000/svg", "tspan"); + } else { + span = document.createElement("span"); + span.className = className; + } + span.appendChild(document.createTextNode(val.substr(pos, text.length))); + node.parentNode.insertBefore(span, node.parentNode.insertBefore( + document.createTextNode(val.substr(pos + text.length)), + node.nextSibling)); + node.nodeValue = val.substr(0, pos); + if (isInSVG) { + var bbox = span.getBBox(); + var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect"); + rect.x.baseVal.value = bbox.x; + rect.y.baseVal.value = bbox.y; + rect.width.baseVal.value = bbox.width; + rect.height.baseVal.value = bbox.height; + rect.setAttribute('class', className); + var parentOfText = node.parentNode.parentNode; + addItems.push({ + "parent": node.parentNode, + "target": rect}); + } + } + } + else if (!jQuery(node).is("button, select, textarea")) { + jQuery.each(node.childNodes, function() { + highlight(this, addItems); + }); + } + } + var addItems = []; + var result = this.each(function() { + highlight(this, addItems); + }); + for (var i = 0; i < addItems.length; ++i) { + jQuery(addItems[i].parent).before(addItems[i].target); + } + return result; +}; + +/* + * backward compatibility for jQuery.browser + * This will be supported until firefox bug is fixed. + */ +if (!jQuery.browser) { + jQuery.uaMatch = function(ua) { + ua = ua.toLowerCase(); + + var match = /(chrome)[ \/]([\w.]+)/.exec(ua) || + /(webkit)[ \/]([\w.]+)/.exec(ua) || + /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) || + /(msie) ([\w.]+)/.exec(ua) || + ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) || + []; + + return { + browser: match[ 1 ] || "", + version: match[ 2 ] || "0" + }; + }; + jQuery.browser = {}; + jQuery.browser[jQuery.uaMatch(navigator.userAgent).browser] = true; +} + +/** + * Small JavaScript module for the documentation. + */ +var Documentation = { + + init : function() { + this.fixFirefoxAnchorBug(); + this.highlightSearchWords(); + this.initIndexTable(); + + }, + + /** + * i18n support + */ + TRANSLATIONS : {}, + PLURAL_EXPR : function(n) { return n === 1 ? 0 : 1; }, + LOCALE : 'unknown', + + // gettext and ngettext don't access this so that the functions + // can safely bound to a different name (_ = Documentation.gettext) + gettext : function(string) { + var translated = Documentation.TRANSLATIONS[string]; + if (typeof translated === 'undefined') + return string; + return (typeof translated === 'string') ? translated : translated[0]; + }, + + ngettext : function(singular, plural, n) { + var translated = Documentation.TRANSLATIONS[singular]; + if (typeof translated === 'undefined') + return (n == 1) ? singular : plural; + return translated[Documentation.PLURALEXPR(n)]; + }, + + addTranslations : function(catalog) { + for (var key in catalog.messages) + this.TRANSLATIONS[key] = catalog.messages[key]; + this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')'); + this.LOCALE = catalog.locale; + }, + + /** + * add context elements like header anchor links + */ + addContextElements : function() { + $('div[id] > :header:first').each(function() { + $('<a class="headerlink">\u00B6</a>'). + attr('href', '#' + this.id). + attr('title', _('Permalink to this headline')). + appendTo(this); + }); + $('dt[id]').each(function() { + $('<a class="headerlink">\u00B6</a>'). + attr('href', '#' + this.id). + attr('title', _('Permalink to this definition')). + appendTo(this); + }); + }, + + /** + * workaround a firefox stupidity + * see: https://bugzilla.mozilla.org/show_bug.cgi?id=645075 + */ + fixFirefoxAnchorBug : function() { + if (document.location.hash && $.browser.mozilla) + window.setTimeout(function() { + document.location.href += ''; + }, 10); + }, + + /** + * highlight the search words provided in the url in the text + */ + highlightSearchWords : function() { + var params = $.getQueryParameters(); + var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : []; + if (terms.length) { + var body = $('div.body'); + if (!body.length) { + body = $('body'); + } + window.setTimeout(function() { + $.each(terms, function() { + body.highlightText(this.toLowerCase(), 'highlighted'); + }); + }, 10); + $('<p class="highlight-link"><a href="javascript:Documentation.' + + 'hideSearchWords()">' + _('Hide Search Matches') + '</a></p>') + .appendTo($('#searchbox')); + } + }, + + /** + * init the domain index toggle buttons + */ + initIndexTable : function() { + var togglers = $('img.toggler').click(function() { + var src = $(this).attr('src'); + var idnum = $(this).attr('id').substr(7); + $('tr.cg-' + idnum).toggle(); + if (src.substr(-9) === 'minus.png') + $(this).attr('src', src.substr(0, src.length-9) + 'plus.png'); + else + $(this).attr('src', src.substr(0, src.length-8) + 'minus.png'); + }).css('display', ''); + if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) { + togglers.click(); + } + }, + + /** + * helper function to hide the search marks again + */ + hideSearchWords : function() { + $('#searchbox .highlight-link').fadeOut(300); + $('span.highlighted').removeClass('highlighted'); + }, + + /** + * make the url absolute + */ + makeURL : function(relativeURL) { + return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL; + }, + + /** + * get the current relative url + */ + getCurrentURL : function() { + var path = document.location.pathname; + var parts = path.split(/\//); + $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() { + if (this === '..') + parts.pop(); + }); + var url = parts.join('/'); + return path.substring(url.lastIndexOf('/') + 1, path.length - 1); + }, + + initOnKeyListeners: function() { + $(document).keyup(function(event) { + var activeElementType = document.activeElement.tagName; + // don't navigate when in search box or textarea + if (activeElementType !== 'TEXTAREA' && activeElementType !== 'INPUT' && activeElementType !== 'SELECT') { + switch (event.keyCode) { + case 37: // left + var prevHref = $('link[rel="prev"]').prop('href'); + if (prevHref) { + window.location.href = prevHref; + return false; + } + case 39: // right + var nextHref = $('link[rel="next"]').prop('href'); + if (nextHref) { + window.location.href = nextHref; + return false; + } + } + } + }); + } +}; + +// quick alias for translations +_ = Documentation.gettext; + +$(document).ready(function() { + Documentation.init(); +});
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/documentation_options.js b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/documentation_options.js new file mode 100644 index 00000000000..fb47b84aaec --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/documentation_options.js @@ -0,0 +1,9 @@ +var DOCUMENTATION_OPTIONS = { + URL_ROOT: '', + VERSION: '0.1', + LANGUAGE: 'None', + COLLAPSE_INDEX: false, + FILE_SUFFIX: '.html', + HAS_SOURCE: true, + SOURCELINK_SUFFIX: '.txt' +};
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/down-pressed.png b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/down-pressed.png Binary files differnew file mode 100644 index 00000000000..5756c8cad88 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/down-pressed.png diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/down.png b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/down.png Binary files differnew file mode 100644 index 00000000000..1b3bdad2cef --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/down.png diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/file.png b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/file.png Binary files differnew file mode 100644 index 00000000000..a858a410e4f --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/file.png diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/jquery-3.2.1.js b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/jquery-3.2.1.js new file mode 100644 index 00000000000..d2d8ca4790e --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/jquery-3.2.1.js @@ -0,0 +1,10253 @@ +/*! + * jQuery JavaScript Library v3.2.1 + * https://jquery.com/ + * + * Includes Sizzle.js + * https://sizzlejs.com/ + * + * Copyright JS Foundation and other contributors + * Released under the MIT license + * https://jquery.org/license + * + * Date: 2017-03-20T18:59Z + */ +( function( global, factory ) { + + "use strict"; + + if ( typeof module === "object" && typeof module.exports === "object" ) { + + // For CommonJS and CommonJS-like environments where a proper `window` + // is present, execute the factory and get jQuery. + // For environments that do not have a `window` with a `document` + // (such as Node.js), expose a factory as module.exports. + // This accentuates the need for the creation of a real `window`. + // e.g. var jQuery = require("jquery")(window); + // See ticket #14549 for more info. + module.exports = global.document ? + factory( global, true ) : + function( w ) { + if ( !w.document ) { + throw new Error( "jQuery requires a window with a document" ); + } + return factory( w ); + }; + } else { + factory( global ); + } + +// Pass this if window is not defined yet +} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { + +// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 +// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode +// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common +// enough that all such attempts are guarded in a try block. +"use strict"; + +var arr = []; + +var document = window.document; + +var getProto = Object.getPrototypeOf; + +var slice = arr.slice; + +var concat = arr.concat; + +var push = arr.push; + +var indexOf = arr.indexOf; + +var class2type = {}; + +var toString = class2type.toString; + +var hasOwn = class2type.hasOwnProperty; + +var fnToString = hasOwn.toString; + +var ObjectFunctionString = fnToString.call( Object ); + +var support = {}; + + + + function DOMEval( code, doc ) { + doc = doc || document; + + var script = doc.createElement( "script" ); + + script.text = code; + doc.head.appendChild( script ).parentNode.removeChild( script ); + } +/* global Symbol */ +// Defining this global in .eslintrc.json would create a danger of using the global +// unguarded in another place, it seems safer to define global only for this module + + + +var + version = "3.2.1", + + // Define a local copy of jQuery + jQuery = function( selector, context ) { + + // The jQuery object is actually just the init constructor 'enhanced' + // Need init if jQuery is called (just allow error to be thrown if not included) + return new jQuery.fn.init( selector, context ); + }, + + // Support: Android <=4.0 only + // Make sure we trim BOM and NBSP + rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, + + // Matches dashed string for camelizing + rmsPrefix = /^-ms-/, + rdashAlpha = /-([a-z])/g, + + // Used by jQuery.camelCase as callback to replace() + fcamelCase = function( all, letter ) { + return letter.toUpperCase(); + }; + +jQuery.fn = jQuery.prototype = { + + // The current version of jQuery being used + jquery: version, + + constructor: jQuery, + + // The default length of a jQuery object is 0 + length: 0, + + toArray: function() { + return slice.call( this ); + }, + + // Get the Nth element in the matched element set OR + // Get the whole matched element set as a clean array + get: function( num ) { + + // Return all the elements in a clean array + if ( num == null ) { + return slice.call( this ); + } + + // Return just the one element from the set + return num < 0 ? this[ num + this.length ] : this[ num ]; + }, + + // Take an array of elements and push it onto the stack + // (returning the new matched element set) + pushStack: function( elems ) { + + // Build a new jQuery matched element set + var ret = jQuery.merge( this.constructor(), elems ); + + // Add the old object onto the stack (as a reference) + ret.prevObject = this; + + // Return the newly-formed element set + return ret; + }, + + // Execute a callback for every element in the matched set. + each: function( callback ) { + return jQuery.each( this, callback ); + }, + + map: function( callback ) { + return this.pushStack( jQuery.map( this, function( elem, i ) { + return callback.call( elem, i, elem ); + } ) ); + }, + + slice: function() { + return this.pushStack( slice.apply( this, arguments ) ); + }, + + first: function() { + return this.eq( 0 ); + }, + + last: function() { + return this.eq( -1 ); + }, + + eq: function( i ) { + var len = this.length, + j = +i + ( i < 0 ? len : 0 ); + return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); + }, + + end: function() { + return this.prevObject || this.constructor(); + }, + + // For internal use only. + // Behaves like an Array's method, not like a jQuery method. + push: push, + sort: arr.sort, + splice: arr.splice +}; + +jQuery.extend = jQuery.fn.extend = function() { + var options, name, src, copy, copyIsArray, clone, + target = arguments[ 0 ] || {}, + i = 1, + length = arguments.length, + deep = false; + + // Handle a deep copy situation + if ( typeof target === "boolean" ) { + deep = target; + + // Skip the boolean and the target + target = arguments[ i ] || {}; + i++; + } + + // Handle case when target is a string or something (possible in deep copy) + if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { + target = {}; + } + + // Extend jQuery itself if only one argument is passed + if ( i === length ) { + target = this; + i--; + } + + for ( ; i < length; i++ ) { + + // Only deal with non-null/undefined values + if ( ( options = arguments[ i ] ) != null ) { + + // Extend the base object + for ( name in options ) { + src = target[ name ]; + copy = options[ name ]; + + // Prevent never-ending loop + if ( target === copy ) { + continue; + } + + // Recurse if we're merging plain objects or arrays + if ( deep && copy && ( jQuery.isPlainObject( copy ) || + ( copyIsArray = Array.isArray( copy ) ) ) ) { + + if ( copyIsArray ) { + copyIsArray = false; + clone = src && Array.isArray( src ) ? src : []; + + } else { + clone = src && jQuery.isPlainObject( src ) ? src : {}; + } + + // Never move original objects, clone them + target[ name ] = jQuery.extend( deep, clone, copy ); + + // Don't bring in undefined values + } else if ( copy !== undefined ) { + target[ name ] = copy; + } + } + } + } + + // Return the modified object + return target; +}; + +jQuery.extend( { + + // Unique for each copy of jQuery on the page + expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), + + // Assume jQuery is ready without the ready module + isReady: true, + + error: function( msg ) { + throw new Error( msg ); + }, + + noop: function() {}, + + isFunction: function( obj ) { + return jQuery.type( obj ) === "function"; + }, + + isWindow: function( obj ) { + return obj != null && obj === obj.window; + }, + + isNumeric: function( obj ) { + + // As of jQuery 3.0, isNumeric is limited to + // strings and numbers (primitives or objects) + // that can be coerced to finite numbers (gh-2662) + var type = jQuery.type( obj ); + return ( type === "number" || type === "string" ) && + + // parseFloat NaNs numeric-cast false positives ("") + // ...but misinterprets leading-number strings, particularly hex literals ("0x...") + // subtraction forces infinities to NaN + !isNaN( obj - parseFloat( obj ) ); + }, + + isPlainObject: function( obj ) { + var proto, Ctor; + + // Detect obvious negatives + // Use toString instead of jQuery.type to catch host objects + if ( !obj || toString.call( obj ) !== "[object Object]" ) { + return false; + } + + proto = getProto( obj ); + + // Objects with no prototype (e.g., `Object.create( null )`) are plain + if ( !proto ) { + return true; + } + + // Objects with prototype are plain iff they were constructed by a global Object function + Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; + return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; + }, + + isEmptyObject: function( obj ) { + + /* eslint-disable no-unused-vars */ + // See https://github.com/eslint/eslint/issues/6125 + var name; + + for ( name in obj ) { + return false; + } + return true; + }, + + type: function( obj ) { + if ( obj == null ) { + return obj + ""; + } + + // Support: Android <=2.3 only (functionish RegExp) + return typeof obj === "object" || typeof obj === "function" ? + class2type[ toString.call( obj ) ] || "object" : + typeof obj; + }, + + // Evaluates a script in a global context + globalEval: function( code ) { + DOMEval( code ); + }, + + // Convert dashed to camelCase; used by the css and data modules + // Support: IE <=9 - 11, Edge 12 - 13 + // Microsoft forgot to hump their vendor prefix (#9572) + camelCase: function( string ) { + return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); + }, + + each: function( obj, callback ) { + var length, i = 0; + + if ( isArrayLike( obj ) ) { + length = obj.length; + for ( ; i < length; i++ ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } else { + for ( i in obj ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } + + return obj; + }, + + // Support: Android <=4.0 only + trim: function( text ) { + return text == null ? + "" : + ( text + "" ).replace( rtrim, "" ); + }, + + // results is for internal usage only + makeArray: function( arr, results ) { + var ret = results || []; + + if ( arr != null ) { + if ( isArrayLike( Object( arr ) ) ) { + jQuery.merge( ret, + typeof arr === "string" ? + [ arr ] : arr + ); + } else { + push.call( ret, arr ); + } + } + + return ret; + }, + + inArray: function( elem, arr, i ) { + return arr == null ? -1 : indexOf.call( arr, elem, i ); + }, + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + merge: function( first, second ) { + var len = +second.length, + j = 0, + i = first.length; + + for ( ; j < len; j++ ) { + first[ i++ ] = second[ j ]; + } + + first.length = i; + + return first; + }, + + grep: function( elems, callback, invert ) { + var callbackInverse, + matches = [], + i = 0, + length = elems.length, + callbackExpect = !invert; + + // Go through the array, only saving the items + // that pass the validator function + for ( ; i < length; i++ ) { + callbackInverse = !callback( elems[ i ], i ); + if ( callbackInverse !== callbackExpect ) { + matches.push( elems[ i ] ); + } + } + + return matches; + }, + + // arg is for internal usage only + map: function( elems, callback, arg ) { + var length, value, + i = 0, + ret = []; + + // Go through the array, translating each of the items to their new values + if ( isArrayLike( elems ) ) { + length = elems.length; + for ( ; i < length; i++ ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + + // Go through every key on the object, + } else { + for ( i in elems ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + } + + // Flatten any nested arrays + return concat.apply( [], ret ); + }, + + // A global GUID counter for objects + guid: 1, + + // Bind a function to a context, optionally partially applying any + // arguments. + proxy: function( fn, context ) { + var tmp, args, proxy; + + if ( typeof context === "string" ) { + tmp = fn[ context ]; + context = fn; + fn = tmp; + } + + // Quick check to determine if target is callable, in the spec + // this throws a TypeError, but we will just return undefined. + if ( !jQuery.isFunction( fn ) ) { + return undefined; + } + + // Simulated bind + args = slice.call( arguments, 2 ); + proxy = function() { + return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); + }; + + // Set the guid of unique handler to the same of original handler, so it can be removed + proxy.guid = fn.guid = fn.guid || jQuery.guid++; + + return proxy; + }, + + now: Date.now, + + // jQuery.support is not used in Core but other projects attach their + // properties to it so it needs to exist. + support: support +} ); + +if ( typeof Symbol === "function" ) { + jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; +} + +// Populate the class2type map +jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), +function( i, name ) { + class2type[ "[object " + name + "]" ] = name.toLowerCase(); +} ); + +function isArrayLike( obj ) { + + // Support: real iOS 8.2 only (not reproducible in simulator) + // `in` check used to prevent JIT error (gh-2145) + // hasOwn isn't used here due to false negatives + // regarding Nodelist length in IE + var length = !!obj && "length" in obj && obj.length, + type = jQuery.type( obj ); + + if ( type === "function" || jQuery.isWindow( obj ) ) { + return false; + } + + return type === "array" || length === 0 || + typeof length === "number" && length > 0 && ( length - 1 ) in obj; +} +var Sizzle = +/*! + * Sizzle CSS Selector Engine v2.3.3 + * https://sizzlejs.com/ + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license + * http://jquery.org/license + * + * Date: 2016-08-08 + */ +(function( window ) { + +var i, + support, + Expr, + getText, + isXML, + tokenize, + compile, + select, + outermostContext, + sortInput, + hasDuplicate, + + // Local document vars + setDocument, + document, + docElem, + documentIsHTML, + rbuggyQSA, + rbuggyMatches, + matches, + contains, + + // Instance-specific data + expando = "sizzle" + 1 * new Date(), + preferredDoc = window.document, + dirruns = 0, + done = 0, + classCache = createCache(), + tokenCache = createCache(), + compilerCache = createCache(), + sortOrder = function( a, b ) { + if ( a === b ) { + hasDuplicate = true; + } + return 0; + }, + + // Instance methods + hasOwn = ({}).hasOwnProperty, + arr = [], + pop = arr.pop, + push_native = arr.push, + push = arr.push, + slice = arr.slice, + // Use a stripped-down indexOf as it's faster than native + // https://jsperf.com/thor-indexof-vs-for/5 + indexOf = function( list, elem ) { + var i = 0, + len = list.length; + for ( ; i < len; i++ ) { + if ( list[i] === elem ) { + return i; + } + } + return -1; + }, + + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", + + // Regular expressions + + // http://www.w3.org/TR/css3-selectors/#whitespace + whitespace = "[\\x20\\t\\r\\n\\f]", + + // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier + identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+", + + // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors + attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + + // Operator (capture 2) + "*([*^$|!~]?=)" + whitespace + + // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" + "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + + "*\\]", + + pseudos = ":(" + identifier + ")(?:\\((" + + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: + // 1. quoted (capture 3; capture 4 or capture 5) + "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + + // 2. simple (capture 6) + "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + + // 3. anything else (capture 2) + ".*" + + ")\\)|)", + + // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter + rwhitespace = new RegExp( whitespace + "+", "g" ), + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), + + rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), + + rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), + + rpseudo = new RegExp( pseudos ), + ridentifier = new RegExp( "^" + identifier + "$" ), + + matchExpr = { + "ID": new RegExp( "^#(" + identifier + ")" ), + "CLASS": new RegExp( "^\\.(" + identifier + ")" ), + "TAG": new RegExp( "^(" + identifier + "|[*])" ), + "ATTR": new RegExp( "^" + attributes ), + "PSEUDO": new RegExp( "^" + pseudos ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + // For use in libraries implementing .is() + // We use this for POS matching in `select` + "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + }, + + rinputs = /^(?:input|select|textarea|button)$/i, + rheader = /^h\d$/i, + + rnative = /^[^{]+\{\s*\[native \w/, + + // Easily-parseable/retrievable ID or TAG or CLASS selectors + rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, + + rsibling = /[+~]/, + + // CSS escapes + // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters + runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), + funescape = function( _, escaped, escapedWhitespace ) { + var high = "0x" + escaped - 0x10000; + // NaN means non-codepoint + // Support: Firefox<24 + // Workaround erroneous numeric interpretation of +"0x" + return high !== high || escapedWhitespace ? + escaped : + high < 0 ? + // BMP codepoint + String.fromCharCode( high + 0x10000 ) : + // Supplemental Plane codepoint (surrogate pair) + String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); + }, + + // CSS string/identifier serialization + // https://drafts.csswg.org/cssom/#common-serializing-idioms + rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, + fcssescape = function( ch, asCodePoint ) { + if ( asCodePoint ) { + + // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER + if ( ch === "\0" ) { + return "\uFFFD"; + } + + // Control characters and (dependent upon position) numbers get escaped as code points + return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; + } + + // Other potentially-special ASCII characters get backslash-escaped + return "\\" + ch; + }, + + // Used for iframes + // See setDocument() + // Removing the function wrapper causes a "Permission Denied" + // error in IE + unloadHandler = function() { + setDocument(); + }, + + disabledAncestor = addCombinator( + function( elem ) { + return elem.disabled === true && ("form" in elem || "label" in elem); + }, + { dir: "parentNode", next: "legend" } + ); + +// Optimize for push.apply( _, NodeList ) +try { + push.apply( + (arr = slice.call( preferredDoc.childNodes )), + preferredDoc.childNodes + ); + // Support: Android<4.0 + // Detect silently failing push.apply + arr[ preferredDoc.childNodes.length ].nodeType; +} catch ( e ) { + push = { apply: arr.length ? + + // Leverage slice if possible + function( target, els ) { + push_native.apply( target, slice.call(els) ); + } : + + // Support: IE<9 + // Otherwise append directly + function( target, els ) { + var j = target.length, + i = 0; + // Can't trust NodeList.length + while ( (target[j++] = els[i++]) ) {} + target.length = j - 1; + } + }; +} + +function Sizzle( selector, context, results, seed ) { + var m, i, elem, nid, match, groups, newSelector, + newContext = context && context.ownerDocument, + + // nodeType defaults to 9, since context defaults to document + nodeType = context ? context.nodeType : 9; + + results = results || []; + + // Return early from calls with invalid selector or context + if ( typeof selector !== "string" || !selector || + nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { + + return results; + } + + // Try to shortcut find operations (as opposed to filters) in HTML documents + if ( !seed ) { + + if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { + setDocument( context ); + } + context = context || document; + + if ( documentIsHTML ) { + + // If the selector is sufficiently simple, try using a "get*By*" DOM method + // (excepting DocumentFragment context, where the methods don't exist) + if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { + + // ID selector + if ( (m = match[1]) ) { + + // Document context + if ( nodeType === 9 ) { + if ( (elem = context.getElementById( m )) ) { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( elem.id === m ) { + results.push( elem ); + return results; + } + } else { + return results; + } + + // Element context + } else { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( newContext && (elem = newContext.getElementById( m )) && + contains( context, elem ) && + elem.id === m ) { + + results.push( elem ); + return results; + } + } + + // Type selector + } else if ( match[2] ) { + push.apply( results, context.getElementsByTagName( selector ) ); + return results; + + // Class selector + } else if ( (m = match[3]) && support.getElementsByClassName && + context.getElementsByClassName ) { + + push.apply( results, context.getElementsByClassName( m ) ); + return results; + } + } + + // Take advantage of querySelectorAll + if ( support.qsa && + !compilerCache[ selector + " " ] && + (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { + + if ( nodeType !== 1 ) { + newContext = context; + newSelector = selector; + + // qSA looks outside Element context, which is not what we want + // Thanks to Andrew Dupont for this workaround technique + // Support: IE <=8 + // Exclude object elements + } else if ( context.nodeName.toLowerCase() !== "object" ) { + + // Capture the context ID, setting it first if necessary + if ( (nid = context.getAttribute( "id" )) ) { + nid = nid.replace( rcssescape, fcssescape ); + } else { + context.setAttribute( "id", (nid = expando) ); + } + + // Prefix every selector in the list + groups = tokenize( selector ); + i = groups.length; + while ( i-- ) { + groups[i] = "#" + nid + " " + toSelector( groups[i] ); + } + newSelector = groups.join( "," ); + + // Expand context for sibling selectors + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || + context; + } + + if ( newSelector ) { + try { + push.apply( results, + newContext.querySelectorAll( newSelector ) + ); + return results; + } catch ( qsaError ) { + } finally { + if ( nid === expando ) { + context.removeAttribute( "id" ); + } + } + } + } + } + } + + // All others + return select( selector.replace( rtrim, "$1" ), context, results, seed ); +} + +/** + * Create key-value caches of limited size + * @returns {function(string, object)} Returns the Object data after storing it on itself with + * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) + * deleting the oldest entry + */ +function createCache() { + var keys = []; + + function cache( key, value ) { + // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) + if ( keys.push( key + " " ) > Expr.cacheLength ) { + // Only keep the most recent entries + delete cache[ keys.shift() ]; + } + return (cache[ key + " " ] = value); + } + return cache; +} + +/** + * Mark a function for special use by Sizzle + * @param {Function} fn The function to mark + */ +function markFunction( fn ) { + fn[ expando ] = true; + return fn; +} + +/** + * Support testing using an element + * @param {Function} fn Passed the created element and returns a boolean result + */ +function assert( fn ) { + var el = document.createElement("fieldset"); + + try { + return !!fn( el ); + } catch (e) { + return false; + } finally { + // Remove from its parent by default + if ( el.parentNode ) { + el.parentNode.removeChild( el ); + } + // release memory in IE + el = null; + } +} + +/** + * Adds the same handler for all of the specified attrs + * @param {String} attrs Pipe-separated list of attributes + * @param {Function} handler The method that will be applied + */ +function addHandle( attrs, handler ) { + var arr = attrs.split("|"), + i = arr.length; + + while ( i-- ) { + Expr.attrHandle[ arr[i] ] = handler; + } +} + +/** + * Checks document order of two siblings + * @param {Element} a + * @param {Element} b + * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b + */ +function siblingCheck( a, b ) { + var cur = b && a, + diff = cur && a.nodeType === 1 && b.nodeType === 1 && + a.sourceIndex - b.sourceIndex; + + // Use IE sourceIndex if available on both nodes + if ( diff ) { + return diff; + } + + // Check if b follows a + if ( cur ) { + while ( (cur = cur.nextSibling) ) { + if ( cur === b ) { + return -1; + } + } + } + + return a ? 1 : -1; +} + +/** + * Returns a function to use in pseudos for input types + * @param {String} type + */ +function createInputPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for buttons + * @param {String} type + */ +function createButtonPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return (name === "input" || name === "button") && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for :enabled/:disabled + * @param {Boolean} disabled true for :disabled; false for :enabled + */ +function createDisabledPseudo( disabled ) { + + // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable + return function( elem ) { + + // Only certain elements can match :enabled or :disabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled + if ( "form" in elem ) { + + // Check for inherited disabledness on relevant non-disabled elements: + // * listed form-associated elements in a disabled fieldset + // https://html.spec.whatwg.org/multipage/forms.html#category-listed + // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled + // * option elements in a disabled optgroup + // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled + // All such elements have a "form" property. + if ( elem.parentNode && elem.disabled === false ) { + + // Option elements defer to a parent optgroup if present + if ( "label" in elem ) { + if ( "label" in elem.parentNode ) { + return elem.parentNode.disabled === disabled; + } else { + return elem.disabled === disabled; + } + } + + // Support: IE 6 - 11 + // Use the isDisabled shortcut property to check for disabled fieldset ancestors + return elem.isDisabled === disabled || + + // Where there is no isDisabled, check manually + /* jshint -W018 */ + elem.isDisabled !== !disabled && + disabledAncestor( elem ) === disabled; + } + + return elem.disabled === disabled; + + // Try to winnow out elements that can't be disabled before trusting the disabled property. + // Some victims get caught in our net (label, legend, menu, track), but it shouldn't + // even exist on them, let alone have a boolean value. + } else if ( "label" in elem ) { + return elem.disabled === disabled; + } + + // Remaining elements are neither :enabled nor :disabled + return false; + }; +} + +/** + * Returns a function to use in pseudos for positionals + * @param {Function} fn + */ +function createPositionalPseudo( fn ) { + return markFunction(function( argument ) { + argument = +argument; + return markFunction(function( seed, matches ) { + var j, + matchIndexes = fn( [], seed.length, argument ), + i = matchIndexes.length; + + // Match elements found at the specified indexes + while ( i-- ) { + if ( seed[ (j = matchIndexes[i]) ] ) { + seed[j] = !(matches[j] = seed[j]); + } + } + }); + }); +} + +/** + * Checks a node for validity as a Sizzle context + * @param {Element|Object=} context + * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value + */ +function testContext( context ) { + return context && typeof context.getElementsByTagName !== "undefined" && context; +} + +// Expose support vars for convenience +support = Sizzle.support = {}; + +/** + * Detects XML nodes + * @param {Element|Object} elem An element or a document + * @returns {Boolean} True iff elem is a non-HTML XML node + */ +isXML = Sizzle.isXML = function( elem ) { + // documentElement is verified for cases where it doesn't yet exist + // (such as loading iframes in IE - #4833) + var documentElement = elem && (elem.ownerDocument || elem).documentElement; + return documentElement ? documentElement.nodeName !== "HTML" : false; +}; + +/** + * Sets document-related variables once based on the current document + * @param {Element|Object} [doc] An element or document object to use to set the document + * @returns {Object} Returns the current document + */ +setDocument = Sizzle.setDocument = function( node ) { + var hasCompare, subWindow, + doc = node ? node.ownerDocument || node : preferredDoc; + + // Return early if doc is invalid or already selected + if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { + return document; + } + + // Update global variables + document = doc; + docElem = document.documentElement; + documentIsHTML = !isXML( document ); + + // Support: IE 9-11, Edge + // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) + if ( preferredDoc !== document && + (subWindow = document.defaultView) && subWindow.top !== subWindow ) { + + // Support: IE 11, Edge + if ( subWindow.addEventListener ) { + subWindow.addEventListener( "unload", unloadHandler, false ); + + // Support: IE 9 - 10 only + } else if ( subWindow.attachEvent ) { + subWindow.attachEvent( "onunload", unloadHandler ); + } + } + + /* Attributes + ---------------------------------------------------------------------- */ + + // Support: IE<8 + // Verify that getAttribute really returns attributes and not properties + // (excepting IE8 booleans) + support.attributes = assert(function( el ) { + el.className = "i"; + return !el.getAttribute("className"); + }); + + /* getElement(s)By* + ---------------------------------------------------------------------- */ + + // Check if getElementsByTagName("*") returns only elements + support.getElementsByTagName = assert(function( el ) { + el.appendChild( document.createComment("") ); + return !el.getElementsByTagName("*").length; + }); + + // Support: IE<9 + support.getElementsByClassName = rnative.test( document.getElementsByClassName ); + + // Support: IE<10 + // Check if getElementById returns elements by name + // The broken getElementById methods don't pick up programmatically-set names, + // so use a roundabout getElementsByName test + support.getById = assert(function( el ) { + docElem.appendChild( el ).id = expando; + return !document.getElementsByName || !document.getElementsByName( expando ).length; + }); + + // ID filter and find + if ( support.getById ) { + Expr.filter["ID"] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + return elem.getAttribute("id") === attrId; + }; + }; + Expr.find["ID"] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var elem = context.getElementById( id ); + return elem ? [ elem ] : []; + } + }; + } else { + Expr.filter["ID"] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + var node = typeof elem.getAttributeNode !== "undefined" && + elem.getAttributeNode("id"); + return node && node.value === attrId; + }; + }; + + // Support: IE 6 - 7 only + // getElementById is not reliable as a find shortcut + Expr.find["ID"] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var node, i, elems, + elem = context.getElementById( id ); + + if ( elem ) { + + // Verify the id attribute + node = elem.getAttributeNode("id"); + if ( node && node.value === id ) { + return [ elem ]; + } + + // Fall back on getElementsByName + elems = context.getElementsByName( id ); + i = 0; + while ( (elem = elems[i++]) ) { + node = elem.getAttributeNode("id"); + if ( node && node.value === id ) { + return [ elem ]; + } + } + } + + return []; + } + }; + } + + // Tag + Expr.find["TAG"] = support.getElementsByTagName ? + function( tag, context ) { + if ( typeof context.getElementsByTagName !== "undefined" ) { + return context.getElementsByTagName( tag ); + + // DocumentFragment nodes don't have gEBTN + } else if ( support.qsa ) { + return context.querySelectorAll( tag ); + } + } : + + function( tag, context ) { + var elem, + tmp = [], + i = 0, + // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too + results = context.getElementsByTagName( tag ); + + // Filter out possible comments + if ( tag === "*" ) { + while ( (elem = results[i++]) ) { + if ( elem.nodeType === 1 ) { + tmp.push( elem ); + } + } + + return tmp; + } + return results; + }; + + // Class + Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { + if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { + return context.getElementsByClassName( className ); + } + }; + + /* QSA/matchesSelector + ---------------------------------------------------------------------- */ + + // QSA and matchesSelector support + + // matchesSelector(:active) reports false when true (IE9/Opera 11.5) + rbuggyMatches = []; + + // qSa(:focus) reports false when true (Chrome 21) + // We allow this because of a bug in IE8/9 that throws an error + // whenever `document.activeElement` is accessed on an iframe + // So, we allow :focus to pass through QSA all the time to avoid the IE error + // See https://bugs.jquery.com/ticket/13378 + rbuggyQSA = []; + + if ( (support.qsa = rnative.test( document.querySelectorAll )) ) { + // Build QSA regex + // Regex strategy adopted from Diego Perini + assert(function( el ) { + // Select is set to empty string on purpose + // This is to test IE's treatment of not explicitly + // setting a boolean content attribute, + // since its presence should be enough + // https://bugs.jquery.com/ticket/12359 + docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" + + "<select id='" + expando + "-\r\\' msallowcapture=''>" + + "<option selected=''></option></select>"; + + // Support: IE8, Opera 11-12.16 + // Nothing should be selected when empty strings follow ^= or $= or *= + // The test attribute must be unknown in Opera but "safe" for WinRT + // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section + if ( el.querySelectorAll("[msallowcapture^='']").length ) { + rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); + } + + // Support: IE8 + // Boolean attributes and "value" are not treated correctly + if ( !el.querySelectorAll("[selected]").length ) { + rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); + } + + // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ + if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { + rbuggyQSA.push("~="); + } + + // Webkit/Opera - :checked should return selected option elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + // IE8 throws error here and will not see later tests + if ( !el.querySelectorAll(":checked").length ) { + rbuggyQSA.push(":checked"); + } + + // Support: Safari 8+, iOS 8+ + // https://bugs.webkit.org/show_bug.cgi?id=136851 + // In-page `selector#id sibling-combinator selector` fails + if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { + rbuggyQSA.push(".#.+[+~]"); + } + }); + + assert(function( el ) { + el.innerHTML = "<a href='' disabled='disabled'></a>" + + "<select disabled='disabled'><option/></select>"; + + // Support: Windows 8 Native Apps + // The type and name attributes are restricted during .innerHTML assignment + var input = document.createElement("input"); + input.setAttribute( "type", "hidden" ); + el.appendChild( input ).setAttribute( "name", "D" ); + + // Support: IE8 + // Enforce case-sensitivity of name attribute + if ( el.querySelectorAll("[name=d]").length ) { + rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); + } + + // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) + // IE8 throws error here and will not see later tests + if ( el.querySelectorAll(":enabled").length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: IE9-11+ + // IE's :disabled selector does not pick up the children of disabled fieldsets + docElem.appendChild( el ).disabled = true; + if ( el.querySelectorAll(":disabled").length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Opera 10-11 does not throw on post-comma invalid pseudos + el.querySelectorAll("*,:x"); + rbuggyQSA.push(",.*:"); + }); + } + + if ( (support.matchesSelector = rnative.test( (matches = docElem.matches || + docElem.webkitMatchesSelector || + docElem.mozMatchesSelector || + docElem.oMatchesSelector || + docElem.msMatchesSelector) )) ) { + + assert(function( el ) { + // Check to see if it's possible to do matchesSelector + // on a disconnected node (IE 9) + support.disconnectedMatch = matches.call( el, "*" ); + + // This should fail with an exception + // Gecko does not error, returns false instead + matches.call( el, "[s!='']:x" ); + rbuggyMatches.push( "!=", pseudos ); + }); + } + + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); + + /* Contains + ---------------------------------------------------------------------- */ + hasCompare = rnative.test( docElem.compareDocumentPosition ); + + // Element contains another + // Purposefully self-exclusive + // As in, an element does not contain itself + contains = hasCompare || rnative.test( docElem.contains ) ? + function( a, b ) { + var adown = a.nodeType === 9 ? a.documentElement : a, + bup = b && b.parentNode; + return a === bup || !!( bup && bup.nodeType === 1 && ( + adown.contains ? + adown.contains( bup ) : + a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 + )); + } : + function( a, b ) { + if ( b ) { + while ( (b = b.parentNode) ) { + if ( b === a ) { + return true; + } + } + } + return false; + }; + + /* Sorting + ---------------------------------------------------------------------- */ + + // Document order sorting + sortOrder = hasCompare ? + function( a, b ) { + + // Flag for duplicate removal + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + // Sort on method existence if only one input has compareDocumentPosition + var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; + if ( compare ) { + return compare; + } + + // Calculate position if both inputs belong to the same document + compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? + a.compareDocumentPosition( b ) : + + // Otherwise we know they are disconnected + 1; + + // Disconnected nodes + if ( compare & 1 || + (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { + + // Choose the first element that is related to our preferred document + if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { + return -1; + } + if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { + return 1; + } + + // Maintain original order + return sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + } + + return compare & 4 ? -1 : 1; + } : + function( a, b ) { + // Exit early if the nodes are identical + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + var cur, + i = 0, + aup = a.parentNode, + bup = b.parentNode, + ap = [ a ], + bp = [ b ]; + + // Parentless nodes are either documents or disconnected + if ( !aup || !bup ) { + return a === document ? -1 : + b === document ? 1 : + aup ? -1 : + bup ? 1 : + sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + + // If the nodes are siblings, we can do a quick check + } else if ( aup === bup ) { + return siblingCheck( a, b ); + } + + // Otherwise we need full lists of their ancestors for comparison + cur = a; + while ( (cur = cur.parentNode) ) { + ap.unshift( cur ); + } + cur = b; + while ( (cur = cur.parentNode) ) { + bp.unshift( cur ); + } + + // Walk down the tree looking for a discrepancy + while ( ap[i] === bp[i] ) { + i++; + } + + return i ? + // Do a sibling check if the nodes have a common ancestor + siblingCheck( ap[i], bp[i] ) : + + // Otherwise nodes in our document sort first + ap[i] === preferredDoc ? -1 : + bp[i] === preferredDoc ? 1 : + 0; + }; + + return document; +}; + +Sizzle.matches = function( expr, elements ) { + return Sizzle( expr, null, null, elements ); +}; + +Sizzle.matchesSelector = function( elem, expr ) { + // Set document vars if needed + if ( ( elem.ownerDocument || elem ) !== document ) { + setDocument( elem ); + } + + // Make sure that attribute selectors are quoted + expr = expr.replace( rattributeQuotes, "='$1']" ); + + if ( support.matchesSelector && documentIsHTML && + !compilerCache[ expr + " " ] && + ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && + ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { + + try { + var ret = matches.call( elem, expr ); + + // IE 9's matchesSelector returns false on disconnected nodes + if ( ret || support.disconnectedMatch || + // As well, disconnected nodes are said to be in a document + // fragment in IE 9 + elem.document && elem.document.nodeType !== 11 ) { + return ret; + } + } catch (e) {} + } + + return Sizzle( expr, document, null, [ elem ] ).length > 0; +}; + +Sizzle.contains = function( context, elem ) { + // Set document vars if needed + if ( ( context.ownerDocument || context ) !== document ) { + setDocument( context ); + } + return contains( context, elem ); +}; + +Sizzle.attr = function( elem, name ) { + // Set document vars if needed + if ( ( elem.ownerDocument || elem ) !== document ) { + setDocument( elem ); + } + + var fn = Expr.attrHandle[ name.toLowerCase() ], + // Don't get fooled by Object.prototype properties (jQuery #13807) + val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? + fn( elem, name, !documentIsHTML ) : + undefined; + + return val !== undefined ? + val : + support.attributes || !documentIsHTML ? + elem.getAttribute( name ) : + (val = elem.getAttributeNode(name)) && val.specified ? + val.value : + null; +}; + +Sizzle.escape = function( sel ) { + return (sel + "").replace( rcssescape, fcssescape ); +}; + +Sizzle.error = function( msg ) { + throw new Error( "Syntax error, unrecognized expression: " + msg ); +}; + +/** + * Document sorting and removing duplicates + * @param {ArrayLike} results + */ +Sizzle.uniqueSort = function( results ) { + var elem, + duplicates = [], + j = 0, + i = 0; + + // Unless we *know* we can detect duplicates, assume their presence + hasDuplicate = !support.detectDuplicates; + sortInput = !support.sortStable && results.slice( 0 ); + results.sort( sortOrder ); + + if ( hasDuplicate ) { + while ( (elem = results[i++]) ) { + if ( elem === results[ i ] ) { + j = duplicates.push( i ); + } + } + while ( j-- ) { + results.splice( duplicates[ j ], 1 ); + } + } + + // Clear input after sorting to release objects + // See https://github.com/jquery/sizzle/pull/225 + sortInput = null; + + return results; +}; + +/** + * Utility function for retrieving the text value of an array of DOM nodes + * @param {Array|Element} elem + */ +getText = Sizzle.getText = function( elem ) { + var node, + ret = "", + i = 0, + nodeType = elem.nodeType; + + if ( !nodeType ) { + // If no nodeType, this is expected to be an array + while ( (node = elem[i++]) ) { + // Do not traverse comment nodes + ret += getText( node ); + } + } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + // Use textContent for elements + // innerText usage removed for consistency of new lines (jQuery #11153) + if ( typeof elem.textContent === "string" ) { + return elem.textContent; + } else { + // Traverse its children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + ret += getText( elem ); + } + } + } else if ( nodeType === 3 || nodeType === 4 ) { + return elem.nodeValue; + } + // Do not include comment or processing instruction nodes + + return ret; +}; + +Expr = Sizzle.selectors = { + + // Can be adjusted by the user + cacheLength: 50, + + createPseudo: markFunction, + + match: matchExpr, + + attrHandle: {}, + + find: {}, + + relative: { + ">": { dir: "parentNode", first: true }, + " ": { dir: "parentNode" }, + "+": { dir: "previousSibling", first: true }, + "~": { dir: "previousSibling" } + }, + + preFilter: { + "ATTR": function( match ) { + match[1] = match[1].replace( runescape, funescape ); + + // Move the given value to match[3] whether quoted or unquoted + match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape ); + + if ( match[2] === "~=" ) { + match[3] = " " + match[3] + " "; + } + + return match.slice( 0, 4 ); + }, + + "CHILD": function( match ) { + /* matches from matchExpr["CHILD"] + 1 type (only|nth|...) + 2 what (child|of-type) + 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) + 4 xn-component of xn+y argument ([+-]?\d*n|) + 5 sign of xn-component + 6 x of xn-component + 7 sign of y-component + 8 y of y-component + */ + match[1] = match[1].toLowerCase(); + + if ( match[1].slice( 0, 3 ) === "nth" ) { + // nth-* requires argument + if ( !match[3] ) { + Sizzle.error( match[0] ); + } + + // numeric x and y parameters for Expr.filter.CHILD + // remember that false/true cast respectively to 0/1 + match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); + match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); + + // other types prohibit arguments + } else if ( match[3] ) { + Sizzle.error( match[0] ); + } + + return match; + }, + + "PSEUDO": function( match ) { + var excess, + unquoted = !match[6] && match[2]; + + if ( matchExpr["CHILD"].test( match[0] ) ) { + return null; + } + + // Accept quoted arguments as-is + if ( match[3] ) { + match[2] = match[4] || match[5] || ""; + + // Strip excess characters from unquoted arguments + } else if ( unquoted && rpseudo.test( unquoted ) && + // Get excess from tokenize (recursively) + (excess = tokenize( unquoted, true )) && + // advance to the next closing parenthesis + (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { + + // excess is a negative index + match[0] = match[0].slice( 0, excess ); + match[2] = unquoted.slice( 0, excess ); + } + + // Return only captures needed by the pseudo filter method (type and argument) + return match.slice( 0, 3 ); + } + }, + + filter: { + + "TAG": function( nodeNameSelector ) { + var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); + return nodeNameSelector === "*" ? + function() { return true; } : + function( elem ) { + return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; + }; + }, + + "CLASS": function( className ) { + var pattern = classCache[ className + " " ]; + + return pattern || + (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && + classCache( className, function( elem ) { + return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" ); + }); + }, + + "ATTR": function( name, operator, check ) { + return function( elem ) { + var result = Sizzle.attr( elem, name ); + + if ( result == null ) { + return operator === "!="; + } + if ( !operator ) { + return true; + } + + result += ""; + + return operator === "=" ? result === check : + operator === "!=" ? result !== check : + operator === "^=" ? check && result.indexOf( check ) === 0 : + operator === "*=" ? check && result.indexOf( check ) > -1 : + operator === "$=" ? check && result.slice( -check.length ) === check : + operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : + operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : + false; + }; + }, + + "CHILD": function( type, what, argument, first, last ) { + var simple = type.slice( 0, 3 ) !== "nth", + forward = type.slice( -4 ) !== "last", + ofType = what === "of-type"; + + return first === 1 && last === 0 ? + + // Shortcut for :nth-*(n) + function( elem ) { + return !!elem.parentNode; + } : + + function( elem, context, xml ) { + var cache, uniqueCache, outerCache, node, nodeIndex, start, + dir = simple !== forward ? "nextSibling" : "previousSibling", + parent = elem.parentNode, + name = ofType && elem.nodeName.toLowerCase(), + useCache = !xml && !ofType, + diff = false; + + if ( parent ) { + + // :(first|last|only)-(child|of-type) + if ( simple ) { + while ( dir ) { + node = elem; + while ( (node = node[ dir ]) ) { + if ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) { + + return false; + } + } + // Reverse direction for :only-* (if we haven't yet done so) + start = dir = type === "only" && !start && "nextSibling"; + } + return true; + } + + start = [ forward ? parent.firstChild : parent.lastChild ]; + + // non-xml :nth-child(...) stores cache data on `parent` + if ( forward && useCache ) { + + // Seek `elem` from a previously-cached index + + // ...in a gzip-friendly way + node = parent; + outerCache = node[ expando ] || (node[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + (outerCache[ node.uniqueID ] = {}); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex && cache[ 2 ]; + node = nodeIndex && parent.childNodes[ nodeIndex ]; + + while ( (node = ++nodeIndex && node && node[ dir ] || + + // Fallback to seeking `elem` from the start + (diff = nodeIndex = 0) || start.pop()) ) { + + // When found, cache indexes on `parent` and break + if ( node.nodeType === 1 && ++diff && node === elem ) { + uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; + break; + } + } + + } else { + // Use previously-cached element index if available + if ( useCache ) { + // ...in a gzip-friendly way + node = elem; + outerCache = node[ expando ] || (node[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + (outerCache[ node.uniqueID ] = {}); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex; + } + + // xml :nth-child(...) + // or :nth-last-child(...) or :nth(-last)?-of-type(...) + if ( diff === false ) { + // Use the same loop as above to seek `elem` from the start + while ( (node = ++nodeIndex && node && node[ dir ] || + (diff = nodeIndex = 0) || start.pop()) ) { + + if ( ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) && + ++diff ) { + + // Cache the index of each encountered element + if ( useCache ) { + outerCache = node[ expando ] || (node[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + (outerCache[ node.uniqueID ] = {}); + + uniqueCache[ type ] = [ dirruns, diff ]; + } + + if ( node === elem ) { + break; + } + } + } + } + } + + // Incorporate the offset, then check against cycle size + diff -= last; + return diff === first || ( diff % first === 0 && diff / first >= 0 ); + } + }; + }, + + "PSEUDO": function( pseudo, argument ) { + // pseudo-class names are case-insensitive + // http://www.w3.org/TR/selectors/#pseudo-classes + // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters + // Remember that setFilters inherits from pseudos + var args, + fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || + Sizzle.error( "unsupported pseudo: " + pseudo ); + + // The user may use createPseudo to indicate that + // arguments are needed to create the filter function + // just as Sizzle does + if ( fn[ expando ] ) { + return fn( argument ); + } + + // But maintain support for old signatures + if ( fn.length > 1 ) { + args = [ pseudo, pseudo, "", argument ]; + return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? + markFunction(function( seed, matches ) { + var idx, + matched = fn( seed, argument ), + i = matched.length; + while ( i-- ) { + idx = indexOf( seed, matched[i] ); + seed[ idx ] = !( matches[ idx ] = matched[i] ); + } + }) : + function( elem ) { + return fn( elem, 0, args ); + }; + } + + return fn; + } + }, + + pseudos: { + // Potentially complex pseudos + "not": markFunction(function( selector ) { + // Trim the selector passed to compile + // to avoid treating leading and trailing + // spaces as combinators + var input = [], + results = [], + matcher = compile( selector.replace( rtrim, "$1" ) ); + + return matcher[ expando ] ? + markFunction(function( seed, matches, context, xml ) { + var elem, + unmatched = matcher( seed, null, xml, [] ), + i = seed.length; + + // Match elements unmatched by `matcher` + while ( i-- ) { + if ( (elem = unmatched[i]) ) { + seed[i] = !(matches[i] = elem); + } + } + }) : + function( elem, context, xml ) { + input[0] = elem; + matcher( input, null, xml, results ); + // Don't keep the element (issue #299) + input[0] = null; + return !results.pop(); + }; + }), + + "has": markFunction(function( selector ) { + return function( elem ) { + return Sizzle( selector, elem ).length > 0; + }; + }), + + "contains": markFunction(function( text ) { + text = text.replace( runescape, funescape ); + return function( elem ) { + return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; + }; + }), + + // "Whether an element is represented by a :lang() selector + // is based solely on the element's language value + // being equal to the identifier C, + // or beginning with the identifier C immediately followed by "-". + // The matching of C against the element's language value is performed case-insensitively. + // The identifier C does not have to be a valid language name." + // http://www.w3.org/TR/selectors/#lang-pseudo + "lang": markFunction( function( lang ) { + // lang value must be a valid identifier + if ( !ridentifier.test(lang || "") ) { + Sizzle.error( "unsupported lang: " + lang ); + } + lang = lang.replace( runescape, funescape ).toLowerCase(); + return function( elem ) { + var elemLang; + do { + if ( (elemLang = documentIsHTML ? + elem.lang : + elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { + + elemLang = elemLang.toLowerCase(); + return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; + } + } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); + return false; + }; + }), + + // Miscellaneous + "target": function( elem ) { + var hash = window.location && window.location.hash; + return hash && hash.slice( 1 ) === elem.id; + }, + + "root": function( elem ) { + return elem === docElem; + }, + + "focus": function( elem ) { + return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); + }, + + // Boolean properties + "enabled": createDisabledPseudo( false ), + "disabled": createDisabledPseudo( true ), + + "checked": function( elem ) { + // In CSS3, :checked should return both checked and selected elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + var nodeName = elem.nodeName.toLowerCase(); + return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); + }, + + "selected": function( elem ) { + // Accessing this property makes selected-by-default + // options in Safari work properly + if ( elem.parentNode ) { + elem.parentNode.selectedIndex; + } + + return elem.selected === true; + }, + + // Contents + "empty": function( elem ) { + // http://www.w3.org/TR/selectors/#empty-pseudo + // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), + // but not by others (comment: 8; processing instruction: 7; etc.) + // nodeType < 6 works because attributes (2) do not appear as children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + if ( elem.nodeType < 6 ) { + return false; + } + } + return true; + }, + + "parent": function( elem ) { + return !Expr.pseudos["empty"]( elem ); + }, + + // Element/input types + "header": function( elem ) { + return rheader.test( elem.nodeName ); + }, + + "input": function( elem ) { + return rinputs.test( elem.nodeName ); + }, + + "button": function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === "button" || name === "button"; + }, + + "text": function( elem ) { + var attr; + return elem.nodeName.toLowerCase() === "input" && + elem.type === "text" && + + // Support: IE<8 + // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" + ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); + }, + + // Position-in-collection + "first": createPositionalPseudo(function() { + return [ 0 ]; + }), + + "last": createPositionalPseudo(function( matchIndexes, length ) { + return [ length - 1 ]; + }), + + "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { + return [ argument < 0 ? argument + length : argument ]; + }), + + "even": createPositionalPseudo(function( matchIndexes, length ) { + var i = 0; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "odd": createPositionalPseudo(function( matchIndexes, length ) { + var i = 1; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; --i >= 0; ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; ++i < length; ) { + matchIndexes.push( i ); + } + return matchIndexes; + }) + } +}; + +Expr.pseudos["nth"] = Expr.pseudos["eq"]; + +// Add button/input type pseudos +for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { + Expr.pseudos[ i ] = createInputPseudo( i ); +} +for ( i in { submit: true, reset: true } ) { + Expr.pseudos[ i ] = createButtonPseudo( i ); +} + +// Easy API for creating new setFilters +function setFilters() {} +setFilters.prototype = Expr.filters = Expr.pseudos; +Expr.setFilters = new setFilters(); + +tokenize = Sizzle.tokenize = function( selector, parseOnly ) { + var matched, match, tokens, type, + soFar, groups, preFilters, + cached = tokenCache[ selector + " " ]; + + if ( cached ) { + return parseOnly ? 0 : cached.slice( 0 ); + } + + soFar = selector; + groups = []; + preFilters = Expr.preFilter; + + while ( soFar ) { + + // Comma and first run + if ( !matched || (match = rcomma.exec( soFar )) ) { + if ( match ) { + // Don't consume trailing commas as valid + soFar = soFar.slice( match[0].length ) || soFar; + } + groups.push( (tokens = []) ); + } + + matched = false; + + // Combinators + if ( (match = rcombinators.exec( soFar )) ) { + matched = match.shift(); + tokens.push({ + value: matched, + // Cast descendant combinators to space + type: match[0].replace( rtrim, " " ) + }); + soFar = soFar.slice( matched.length ); + } + + // Filters + for ( type in Expr.filter ) { + if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || + (match = preFilters[ type ]( match ))) ) { + matched = match.shift(); + tokens.push({ + value: matched, + type: type, + matches: match + }); + soFar = soFar.slice( matched.length ); + } + } + + if ( !matched ) { + break; + } + } + + // Return the length of the invalid excess + // if we're just parsing + // Otherwise, throw an error or return tokens + return parseOnly ? + soFar.length : + soFar ? + Sizzle.error( selector ) : + // Cache the tokens + tokenCache( selector, groups ).slice( 0 ); +}; + +function toSelector( tokens ) { + var i = 0, + len = tokens.length, + selector = ""; + for ( ; i < len; i++ ) { + selector += tokens[i].value; + } + return selector; +} + +function addCombinator( matcher, combinator, base ) { + var dir = combinator.dir, + skip = combinator.next, + key = skip || dir, + checkNonElements = base && key === "parentNode", + doneName = done++; + + return combinator.first ? + // Check against closest ancestor/preceding element + function( elem, context, xml ) { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + return matcher( elem, context, xml ); + } + } + return false; + } : + + // Check against all ancestor/preceding elements + function( elem, context, xml ) { + var oldCache, uniqueCache, outerCache, + newCache = [ dirruns, doneName ]; + + // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching + if ( xml ) { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + if ( matcher( elem, context, xml ) ) { + return true; + } + } + } + } else { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + outerCache = elem[ expando ] || (elem[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {}); + + if ( skip && skip === elem.nodeName.toLowerCase() ) { + elem = elem[ dir ] || elem; + } else if ( (oldCache = uniqueCache[ key ]) && + oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { + + // Assign to newCache so results back-propagate to previous elements + return (newCache[ 2 ] = oldCache[ 2 ]); + } else { + // Reuse newcache so results back-propagate to previous elements + uniqueCache[ key ] = newCache; + + // A match means we're done; a fail means we have to keep checking + if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { + return true; + } + } + } + } + } + return false; + }; +} + +function elementMatcher( matchers ) { + return matchers.length > 1 ? + function( elem, context, xml ) { + var i = matchers.length; + while ( i-- ) { + if ( !matchers[i]( elem, context, xml ) ) { + return false; + } + } + return true; + } : + matchers[0]; +} + +function multipleContexts( selector, contexts, results ) { + var i = 0, + len = contexts.length; + for ( ; i < len; i++ ) { + Sizzle( selector, contexts[i], results ); + } + return results; +} + +function condense( unmatched, map, filter, context, xml ) { + var elem, + newUnmatched = [], + i = 0, + len = unmatched.length, + mapped = map != null; + + for ( ; i < len; i++ ) { + if ( (elem = unmatched[i]) ) { + if ( !filter || filter( elem, context, xml ) ) { + newUnmatched.push( elem ); + if ( mapped ) { + map.push( i ); + } + } + } + } + + return newUnmatched; +} + +function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { + if ( postFilter && !postFilter[ expando ] ) { + postFilter = setMatcher( postFilter ); + } + if ( postFinder && !postFinder[ expando ] ) { + postFinder = setMatcher( postFinder, postSelector ); + } + return markFunction(function( seed, results, context, xml ) { + var temp, i, elem, + preMap = [], + postMap = [], + preexisting = results.length, + + // Get initial elements from seed or context + elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), + + // Prefilter to get matcher input, preserving a map for seed-results synchronization + matcherIn = preFilter && ( seed || !selector ) ? + condense( elems, preMap, preFilter, context, xml ) : + elems, + + matcherOut = matcher ? + // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, + postFinder || ( seed ? preFilter : preexisting || postFilter ) ? + + // ...intermediate processing is necessary + [] : + + // ...otherwise use results directly + results : + matcherIn; + + // Find primary matches + if ( matcher ) { + matcher( matcherIn, matcherOut, context, xml ); + } + + // Apply postFilter + if ( postFilter ) { + temp = condense( matcherOut, postMap ); + postFilter( temp, [], context, xml ); + + // Un-match failing elements by moving them back to matcherIn + i = temp.length; + while ( i-- ) { + if ( (elem = temp[i]) ) { + matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); + } + } + } + + if ( seed ) { + if ( postFinder || preFilter ) { + if ( postFinder ) { + // Get the final matcherOut by condensing this intermediate into postFinder contexts + temp = []; + i = matcherOut.length; + while ( i-- ) { + if ( (elem = matcherOut[i]) ) { + // Restore matcherIn since elem is not yet a final match + temp.push( (matcherIn[i] = elem) ); + } + } + postFinder( null, (matcherOut = []), temp, xml ); + } + + // Move matched elements from seed to results to keep them synchronized + i = matcherOut.length; + while ( i-- ) { + if ( (elem = matcherOut[i]) && + (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) { + + seed[temp] = !(results[temp] = elem); + } + } + } + + // Add elements to results, through postFinder if defined + } else { + matcherOut = condense( + matcherOut === results ? + matcherOut.splice( preexisting, matcherOut.length ) : + matcherOut + ); + if ( postFinder ) { + postFinder( null, results, matcherOut, xml ); + } else { + push.apply( results, matcherOut ); + } + } + }); +} + +function matcherFromTokens( tokens ) { + var checkContext, matcher, j, + len = tokens.length, + leadingRelative = Expr.relative[ tokens[0].type ], + implicitRelative = leadingRelative || Expr.relative[" "], + i = leadingRelative ? 1 : 0, + + // The foundational matcher ensures that elements are reachable from top-level context(s) + matchContext = addCombinator( function( elem ) { + return elem === checkContext; + }, implicitRelative, true ), + matchAnyContext = addCombinator( function( elem ) { + return indexOf( checkContext, elem ) > -1; + }, implicitRelative, true ), + matchers = [ function( elem, context, xml ) { + var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( + (checkContext = context).nodeType ? + matchContext( elem, context, xml ) : + matchAnyContext( elem, context, xml ) ); + // Avoid hanging onto element (issue #299) + checkContext = null; + return ret; + } ]; + + for ( ; i < len; i++ ) { + if ( (matcher = Expr.relative[ tokens[i].type ]) ) { + matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; + } else { + matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); + + // Return special upon seeing a positional matcher + if ( matcher[ expando ] ) { + // Find the next relative operator (if any) for proper handling + j = ++i; + for ( ; j < len; j++ ) { + if ( Expr.relative[ tokens[j].type ] ) { + break; + } + } + return setMatcher( + i > 1 && elementMatcher( matchers ), + i > 1 && toSelector( + // If the preceding token was a descendant combinator, insert an implicit any-element `*` + tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) + ).replace( rtrim, "$1" ), + matcher, + i < j && matcherFromTokens( tokens.slice( i, j ) ), + j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), + j < len && toSelector( tokens ) + ); + } + matchers.push( matcher ); + } + } + + return elementMatcher( matchers ); +} + +function matcherFromGroupMatchers( elementMatchers, setMatchers ) { + var bySet = setMatchers.length > 0, + byElement = elementMatchers.length > 0, + superMatcher = function( seed, context, xml, results, outermost ) { + var elem, j, matcher, + matchedCount = 0, + i = "0", + unmatched = seed && [], + setMatched = [], + contextBackup = outermostContext, + // We must always have either seed elements or outermost context + elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), + // Use integer dirruns iff this is the outermost matcher + dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), + len = elems.length; + + if ( outermost ) { + outermostContext = context === document || context || outermost; + } + + // Add elements passing elementMatchers directly to results + // Support: IE<9, Safari + // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id + for ( ; i !== len && (elem = elems[i]) != null; i++ ) { + if ( byElement && elem ) { + j = 0; + if ( !context && elem.ownerDocument !== document ) { + setDocument( elem ); + xml = !documentIsHTML; + } + while ( (matcher = elementMatchers[j++]) ) { + if ( matcher( elem, context || document, xml) ) { + results.push( elem ); + break; + } + } + if ( outermost ) { + dirruns = dirrunsUnique; + } + } + + // Track unmatched elements for set filters + if ( bySet ) { + // They will have gone through all possible matchers + if ( (elem = !matcher && elem) ) { + matchedCount--; + } + + // Lengthen the array for every element, matched or not + if ( seed ) { + unmatched.push( elem ); + } + } + } + + // `i` is now the count of elements visited above, and adding it to `matchedCount` + // makes the latter nonnegative. + matchedCount += i; + + // Apply set filters to unmatched elements + // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` + // equals `i`), unless we didn't visit _any_ elements in the above loop because we have + // no element matchers and no seed. + // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that + // case, which will result in a "00" `matchedCount` that differs from `i` but is also + // numerically zero. + if ( bySet && i !== matchedCount ) { + j = 0; + while ( (matcher = setMatchers[j++]) ) { + matcher( unmatched, setMatched, context, xml ); + } + + if ( seed ) { + // Reintegrate element matches to eliminate the need for sorting + if ( matchedCount > 0 ) { + while ( i-- ) { + if ( !(unmatched[i] || setMatched[i]) ) { + setMatched[i] = pop.call( results ); + } + } + } + + // Discard index placeholder values to get only actual matches + setMatched = condense( setMatched ); + } + + // Add matches to results + push.apply( results, setMatched ); + + // Seedless set matches succeeding multiple successful matchers stipulate sorting + if ( outermost && !seed && setMatched.length > 0 && + ( matchedCount + setMatchers.length ) > 1 ) { + + Sizzle.uniqueSort( results ); + } + } + + // Override manipulation of globals by nested matchers + if ( outermost ) { + dirruns = dirrunsUnique; + outermostContext = contextBackup; + } + + return unmatched; + }; + + return bySet ? + markFunction( superMatcher ) : + superMatcher; +} + +compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { + var i, + setMatchers = [], + elementMatchers = [], + cached = compilerCache[ selector + " " ]; + + if ( !cached ) { + // Generate a function of recursive functions that can be used to check each element + if ( !match ) { + match = tokenize( selector ); + } + i = match.length; + while ( i-- ) { + cached = matcherFromTokens( match[i] ); + if ( cached[ expando ] ) { + setMatchers.push( cached ); + } else { + elementMatchers.push( cached ); + } + } + + // Cache the compiled function + cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); + + // Save selector and tokenization + cached.selector = selector; + } + return cached; +}; + +/** + * A low-level selection function that works with Sizzle's compiled + * selector functions + * @param {String|Function} selector A selector or a pre-compiled + * selector function built with Sizzle.compile + * @param {Element} context + * @param {Array} [results] + * @param {Array} [seed] A set of elements to match against + */ +select = Sizzle.select = function( selector, context, results, seed ) { + var i, tokens, token, type, find, + compiled = typeof selector === "function" && selector, + match = !seed && tokenize( (selector = compiled.selector || selector) ); + + results = results || []; + + // Try to minimize operations if there is only one selector in the list and no seed + // (the latter of which guarantees us context) + if ( match.length === 1 ) { + + // Reduce context if the leading compound selector is an ID + tokens = match[0] = match[0].slice( 0 ); + if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && + context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) { + + context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; + if ( !context ) { + return results; + + // Precompiled matchers will still verify ancestry, so step up a level + } else if ( compiled ) { + context = context.parentNode; + } + + selector = selector.slice( tokens.shift().value.length ); + } + + // Fetch a seed set for right-to-left matching + i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; + while ( i-- ) { + token = tokens[i]; + + // Abort if we hit a combinator + if ( Expr.relative[ (type = token.type) ] ) { + break; + } + if ( (find = Expr.find[ type ]) ) { + // Search, expanding context for leading sibling combinators + if ( (seed = find( + token.matches[0].replace( runescape, funescape ), + rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context + )) ) { + + // If seed is empty or no tokens remain, we can return early + tokens.splice( i, 1 ); + selector = seed.length && toSelector( tokens ); + if ( !selector ) { + push.apply( results, seed ); + return results; + } + + break; + } + } + } + } + + // Compile and execute a filtering function if one is not provided + // Provide `match` to avoid retokenization if we modified the selector above + ( compiled || compile( selector, match ) )( + seed, + context, + !documentIsHTML, + results, + !context || rsibling.test( selector ) && testContext( context.parentNode ) || context + ); + return results; +}; + +// One-time assignments + +// Sort stability +support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; + +// Support: Chrome 14-35+ +// Always assume duplicates if they aren't passed to the comparison function +support.detectDuplicates = !!hasDuplicate; + +// Initialize against the default document +setDocument(); + +// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) +// Detached nodes confoundingly follow *each other* +support.sortDetached = assert(function( el ) { + // Should return 1, but returns 4 (following) + return el.compareDocumentPosition( document.createElement("fieldset") ) & 1; +}); + +// Support: IE<8 +// Prevent attribute/property "interpolation" +// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx +if ( !assert(function( el ) { + el.innerHTML = "<a href='#'></a>"; + return el.firstChild.getAttribute("href") === "#" ; +}) ) { + addHandle( "type|href|height|width", function( elem, name, isXML ) { + if ( !isXML ) { + return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); + } + }); +} + +// Support: IE<9 +// Use defaultValue in place of getAttribute("value") +if ( !support.attributes || !assert(function( el ) { + el.innerHTML = "<input/>"; + el.firstChild.setAttribute( "value", "" ); + return el.firstChild.getAttribute( "value" ) === ""; +}) ) { + addHandle( "value", function( elem, name, isXML ) { + if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { + return elem.defaultValue; + } + }); +} + +// Support: IE<9 +// Use getAttributeNode to fetch booleans when getAttribute lies +if ( !assert(function( el ) { + return el.getAttribute("disabled") == null; +}) ) { + addHandle( booleans, function( elem, name, isXML ) { + var val; + if ( !isXML ) { + return elem[ name ] === true ? name.toLowerCase() : + (val = elem.getAttributeNode( name )) && val.specified ? + val.value : + null; + } + }); +} + +return Sizzle; + +})( window ); + + + +jQuery.find = Sizzle; +jQuery.expr = Sizzle.selectors; + +// Deprecated +jQuery.expr[ ":" ] = jQuery.expr.pseudos; +jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; +jQuery.text = Sizzle.getText; +jQuery.isXMLDoc = Sizzle.isXML; +jQuery.contains = Sizzle.contains; +jQuery.escapeSelector = Sizzle.escape; + + + + +var dir = function( elem, dir, until ) { + var matched = [], + truncate = until !== undefined; + + while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { + if ( elem.nodeType === 1 ) { + if ( truncate && jQuery( elem ).is( until ) ) { + break; + } + matched.push( elem ); + } + } + return matched; +}; + + +var siblings = function( n, elem ) { + var matched = []; + + for ( ; n; n = n.nextSibling ) { + if ( n.nodeType === 1 && n !== elem ) { + matched.push( n ); + } + } + + return matched; +}; + + +var rneedsContext = jQuery.expr.match.needsContext; + + + +function nodeName( elem, name ) { + + return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); + +}; +var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); + + + +var risSimple = /^.[^:#\[\.,]*$/; + +// Implement the identical functionality for filter and not +function winnow( elements, qualifier, not ) { + if ( jQuery.isFunction( qualifier ) ) { + return jQuery.grep( elements, function( elem, i ) { + return !!qualifier.call( elem, i, elem ) !== not; + } ); + } + + // Single element + if ( qualifier.nodeType ) { + return jQuery.grep( elements, function( elem ) { + return ( elem === qualifier ) !== not; + } ); + } + + // Arraylike of elements (jQuery, arguments, Array) + if ( typeof qualifier !== "string" ) { + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not; + } ); + } + + // Simple selector that can be filtered directly, removing non-Elements + if ( risSimple.test( qualifier ) ) { + return jQuery.filter( qualifier, elements, not ); + } + + // Complex selector, compare the two sets, removing non-Elements + qualifier = jQuery.filter( qualifier, elements ); + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1; + } ); +} + +jQuery.filter = function( expr, elems, not ) { + var elem = elems[ 0 ]; + + if ( not ) { + expr = ":not(" + expr + ")"; + } + + if ( elems.length === 1 && elem.nodeType === 1 ) { + return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; + } + + return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { + return elem.nodeType === 1; + } ) ); +}; + +jQuery.fn.extend( { + find: function( selector ) { + var i, ret, + len = this.length, + self = this; + + if ( typeof selector !== "string" ) { + return this.pushStack( jQuery( selector ).filter( function() { + for ( i = 0; i < len; i++ ) { + if ( jQuery.contains( self[ i ], this ) ) { + return true; + } + } + } ) ); + } + + ret = this.pushStack( [] ); + + for ( i = 0; i < len; i++ ) { + jQuery.find( selector, self[ i ], ret ); + } + + return len > 1 ? jQuery.uniqueSort( ret ) : ret; + }, + filter: function( selector ) { + return this.pushStack( winnow( this, selector || [], false ) ); + }, + not: function( selector ) { + return this.pushStack( winnow( this, selector || [], true ) ); + }, + is: function( selector ) { + return !!winnow( + this, + + // If this is a positional/relative selector, check membership in the returned set + // so $("p:first").is("p:last") won't return true for a doc with two "p". + typeof selector === "string" && rneedsContext.test( selector ) ? + jQuery( selector ) : + selector || [], + false + ).length; + } +} ); + + +// Initialize a jQuery object + + +// A central reference to the root jQuery(document) +var rootjQuery, + + // A simple way to check for HTML strings + // Prioritize #id over <tag> to avoid XSS via location.hash (#9521) + // Strict HTML recognition (#11290: must start with <) + // Shortcut simple #id case for speed + rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, + + init = jQuery.fn.init = function( selector, context, root ) { + var match, elem; + + // HANDLE: $(""), $(null), $(undefined), $(false) + if ( !selector ) { + return this; + } + + // Method init() accepts an alternate rootjQuery + // so migrate can support jQuery.sub (gh-2101) + root = root || rootjQuery; + + // Handle HTML strings + if ( typeof selector === "string" ) { + if ( selector[ 0 ] === "<" && + selector[ selector.length - 1 ] === ">" && + selector.length >= 3 ) { + + // Assume that strings that start and end with <> are HTML and skip the regex check + match = [ null, selector, null ]; + + } else { + match = rquickExpr.exec( selector ); + } + + // Match html or make sure no context is specified for #id + if ( match && ( match[ 1 ] || !context ) ) { + + // HANDLE: $(html) -> $(array) + if ( match[ 1 ] ) { + context = context instanceof jQuery ? context[ 0 ] : context; + + // Option to run scripts is true for back-compat + // Intentionally let the error be thrown if parseHTML is not present + jQuery.merge( this, jQuery.parseHTML( + match[ 1 ], + context && context.nodeType ? context.ownerDocument || context : document, + true + ) ); + + // HANDLE: $(html, props) + if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { + for ( match in context ) { + + // Properties of context are called as methods if possible + if ( jQuery.isFunction( this[ match ] ) ) { + this[ match ]( context[ match ] ); + + // ...and otherwise set as attributes + } else { + this.attr( match, context[ match ] ); + } + } + } + + return this; + + // HANDLE: $(#id) + } else { + elem = document.getElementById( match[ 2 ] ); + + if ( elem ) { + + // Inject the element directly into the jQuery object + this[ 0 ] = elem; + this.length = 1; + } + return this; + } + + // HANDLE: $(expr, $(...)) + } else if ( !context || context.jquery ) { + return ( context || root ).find( selector ); + + // HANDLE: $(expr, context) + // (which is just equivalent to: $(context).find(expr) + } else { + return this.constructor( context ).find( selector ); + } + + // HANDLE: $(DOMElement) + } else if ( selector.nodeType ) { + this[ 0 ] = selector; + this.length = 1; + return this; + + // HANDLE: $(function) + // Shortcut for document ready + } else if ( jQuery.isFunction( selector ) ) { + return root.ready !== undefined ? + root.ready( selector ) : + + // Execute immediately if ready is not present + selector( jQuery ); + } + + return jQuery.makeArray( selector, this ); + }; + +// Give the init function the jQuery prototype for later instantiation +init.prototype = jQuery.fn; + +// Initialize central reference +rootjQuery = jQuery( document ); + + +var rparentsprev = /^(?:parents|prev(?:Until|All))/, + + // Methods guaranteed to produce a unique set when starting from a unique set + guaranteedUnique = { + children: true, + contents: true, + next: true, + prev: true + }; + +jQuery.fn.extend( { + has: function( target ) { + var targets = jQuery( target, this ), + l = targets.length; + + return this.filter( function() { + var i = 0; + for ( ; i < l; i++ ) { + if ( jQuery.contains( this, targets[ i ] ) ) { + return true; + } + } + } ); + }, + + closest: function( selectors, context ) { + var cur, + i = 0, + l = this.length, + matched = [], + targets = typeof selectors !== "string" && jQuery( selectors ); + + // Positional selectors never match, since there's no _selection_ context + if ( !rneedsContext.test( selectors ) ) { + for ( ; i < l; i++ ) { + for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { + + // Always skip document fragments + if ( cur.nodeType < 11 && ( targets ? + targets.index( cur ) > -1 : + + // Don't pass non-elements to Sizzle + cur.nodeType === 1 && + jQuery.find.matchesSelector( cur, selectors ) ) ) { + + matched.push( cur ); + break; + } + } + } + } + + return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); + }, + + // Determine the position of an element within the set + index: function( elem ) { + + // No argument, return index in parent + if ( !elem ) { + return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1; + } + + // Index in selector + if ( typeof elem === "string" ) { + return indexOf.call( jQuery( elem ), this[ 0 ] ); + } + + // Locate the position of the desired element + return indexOf.call( this, + + // If it receives a jQuery object, the first element is used + elem.jquery ? elem[ 0 ] : elem + ); + }, + + add: function( selector, context ) { + return this.pushStack( + jQuery.uniqueSort( + jQuery.merge( this.get(), jQuery( selector, context ) ) + ) + ); + }, + + addBack: function( selector ) { + return this.add( selector == null ? + this.prevObject : this.prevObject.filter( selector ) + ); + } +} ); + +function sibling( cur, dir ) { + while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} + return cur; +} + +jQuery.each( { + parent: function( elem ) { + var parent = elem.parentNode; + return parent && parent.nodeType !== 11 ? parent : null; + }, + parents: function( elem ) { + return dir( elem, "parentNode" ); + }, + parentsUntil: function( elem, i, until ) { + return dir( elem, "parentNode", until ); + }, + next: function( elem ) { + return sibling( elem, "nextSibling" ); + }, + prev: function( elem ) { + return sibling( elem, "previousSibling" ); + }, + nextAll: function( elem ) { + return dir( elem, "nextSibling" ); + }, + prevAll: function( elem ) { + return dir( elem, "previousSibling" ); + }, + nextUntil: function( elem, i, until ) { + return dir( elem, "nextSibling", until ); + }, + prevUntil: function( elem, i, until ) { + return dir( elem, "previousSibling", until ); + }, + siblings: function( elem ) { + return siblings( ( elem.parentNode || {} ).firstChild, elem ); + }, + children: function( elem ) { + return siblings( elem.firstChild ); + }, + contents: function( elem ) { + if ( nodeName( elem, "iframe" ) ) { + return elem.contentDocument; + } + + // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only + // Treat the template element as a regular one in browsers that + // don't support it. + if ( nodeName( elem, "template" ) ) { + elem = elem.content || elem; + } + + return jQuery.merge( [], elem.childNodes ); + } +}, function( name, fn ) { + jQuery.fn[ name ] = function( until, selector ) { + var matched = jQuery.map( this, fn, until ); + + if ( name.slice( -5 ) !== "Until" ) { + selector = until; + } + + if ( selector && typeof selector === "string" ) { + matched = jQuery.filter( selector, matched ); + } + + if ( this.length > 1 ) { + + // Remove duplicates + if ( !guaranteedUnique[ name ] ) { + jQuery.uniqueSort( matched ); + } + + // Reverse order for parents* and prev-derivatives + if ( rparentsprev.test( name ) ) { + matched.reverse(); + } + } + + return this.pushStack( matched ); + }; +} ); +var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); + + + +// Convert String-formatted options into Object-formatted ones +function createOptions( options ) { + var object = {}; + jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { + object[ flag ] = true; + } ); + return object; +} + +/* + * Create a callback list using the following parameters: + * + * options: an optional list of space-separated options that will change how + * the callback list behaves or a more traditional option object + * + * By default a callback list will act like an event callback list and can be + * "fired" multiple times. + * + * Possible options: + * + * once: will ensure the callback list can only be fired once (like a Deferred) + * + * memory: will keep track of previous values and will call any callback added + * after the list has been fired right away with the latest "memorized" + * values (like a Deferred) + * + * unique: will ensure a callback can only be added once (no duplicate in the list) + * + * stopOnFalse: interrupt callings when a callback returns false + * + */ +jQuery.Callbacks = function( options ) { + + // Convert options from String-formatted to Object-formatted if needed + // (we check in cache first) + options = typeof options === "string" ? + createOptions( options ) : + jQuery.extend( {}, options ); + + var // Flag to know if list is currently firing + firing, + + // Last fire value for non-forgettable lists + memory, + + // Flag to know if list was already fired + fired, + + // Flag to prevent firing + locked, + + // Actual callback list + list = [], + + // Queue of execution data for repeatable lists + queue = [], + + // Index of currently firing callback (modified by add/remove as needed) + firingIndex = -1, + + // Fire callbacks + fire = function() { + + // Enforce single-firing + locked = locked || options.once; + + // Execute callbacks for all pending executions, + // respecting firingIndex overrides and runtime changes + fired = firing = true; + for ( ; queue.length; firingIndex = -1 ) { + memory = queue.shift(); + while ( ++firingIndex < list.length ) { + + // Run callback and check for early termination + if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && + options.stopOnFalse ) { + + // Jump to end and forget the data so .add doesn't re-fire + firingIndex = list.length; + memory = false; + } + } + } + + // Forget the data if we're done with it + if ( !options.memory ) { + memory = false; + } + + firing = false; + + // Clean up if we're done firing for good + if ( locked ) { + + // Keep an empty list if we have data for future add calls + if ( memory ) { + list = []; + + // Otherwise, this object is spent + } else { + list = ""; + } + } + }, + + // Actual Callbacks object + self = { + + // Add a callback or a collection of callbacks to the list + add: function() { + if ( list ) { + + // If we have memory from a past run, we should fire after adding + if ( memory && !firing ) { + firingIndex = list.length - 1; + queue.push( memory ); + } + + ( function add( args ) { + jQuery.each( args, function( _, arg ) { + if ( jQuery.isFunction( arg ) ) { + if ( !options.unique || !self.has( arg ) ) { + list.push( arg ); + } + } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { + + // Inspect recursively + add( arg ); + } + } ); + } )( arguments ); + + if ( memory && !firing ) { + fire(); + } + } + return this; + }, + + // Remove a callback from the list + remove: function() { + jQuery.each( arguments, function( _, arg ) { + var index; + while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { + list.splice( index, 1 ); + + // Handle firing indexes + if ( index <= firingIndex ) { + firingIndex--; + } + } + } ); + return this; + }, + + // Check if a given callback is in the list. + // If no argument is given, return whether or not list has callbacks attached. + has: function( fn ) { + return fn ? + jQuery.inArray( fn, list ) > -1 : + list.length > 0; + }, + + // Remove all callbacks from the list + empty: function() { + if ( list ) { + list = []; + } + return this; + }, + + // Disable .fire and .add + // Abort any current/pending executions + // Clear all callbacks and values + disable: function() { + locked = queue = []; + list = memory = ""; + return this; + }, + disabled: function() { + return !list; + }, + + // Disable .fire + // Also disable .add unless we have memory (since it would have no effect) + // Abort any pending executions + lock: function() { + locked = queue = []; + if ( !memory && !firing ) { + list = memory = ""; + } + return this; + }, + locked: function() { + return !!locked; + }, + + // Call all callbacks with the given context and arguments + fireWith: function( context, args ) { + if ( !locked ) { + args = args || []; + args = [ context, args.slice ? args.slice() : args ]; + queue.push( args ); + if ( !firing ) { + fire(); + } + } + return this; + }, + + // Call all the callbacks with the given arguments + fire: function() { + self.fireWith( this, arguments ); + return this; + }, + + // To know if the callbacks have already been called at least once + fired: function() { + return !!fired; + } + }; + + return self; +}; + + +function Identity( v ) { + return v; +} +function Thrower( ex ) { + throw ex; +} + +function adoptValue( value, resolve, reject, noValue ) { + var method; + + try { + + // Check for promise aspect first to privilege synchronous behavior + if ( value && jQuery.isFunction( ( method = value.promise ) ) ) { + method.call( value ).done( resolve ).fail( reject ); + + // Other thenables + } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) { + method.call( value, resolve, reject ); + + // Other non-thenables + } else { + + // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: + // * false: [ value ].slice( 0 ) => resolve( value ) + // * true: [ value ].slice( 1 ) => resolve() + resolve.apply( undefined, [ value ].slice( noValue ) ); + } + + // For Promises/A+, convert exceptions into rejections + // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in + // Deferred#then to conditionally suppress rejection. + } catch ( value ) { + + // Support: Android 4.0 only + // Strict mode functions invoked without .call/.apply get global-object context + reject.apply( undefined, [ value ] ); + } +} + +jQuery.extend( { + + Deferred: function( func ) { + var tuples = [ + + // action, add listener, callbacks, + // ... .then handlers, argument index, [final state] + [ "notify", "progress", jQuery.Callbacks( "memory" ), + jQuery.Callbacks( "memory" ), 2 ], + [ "resolve", "done", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 0, "resolved" ], + [ "reject", "fail", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 1, "rejected" ] + ], + state = "pending", + promise = { + state: function() { + return state; + }, + always: function() { + deferred.done( arguments ).fail( arguments ); + return this; + }, + "catch": function( fn ) { + return promise.then( null, fn ); + }, + + // Keep pipe for back-compat + pipe: function( /* fnDone, fnFail, fnProgress */ ) { + var fns = arguments; + + return jQuery.Deferred( function( newDefer ) { + jQuery.each( tuples, function( i, tuple ) { + + // Map tuples (progress, done, fail) to arguments (done, fail, progress) + var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; + + // deferred.progress(function() { bind to newDefer or newDefer.notify }) + // deferred.done(function() { bind to newDefer or newDefer.resolve }) + // deferred.fail(function() { bind to newDefer or newDefer.reject }) + deferred[ tuple[ 1 ] ]( function() { + var returned = fn && fn.apply( this, arguments ); + if ( returned && jQuery.isFunction( returned.promise ) ) { + returned.promise() + .progress( newDefer.notify ) + .done( newDefer.resolve ) + .fail( newDefer.reject ); + } else { + newDefer[ tuple[ 0 ] + "With" ]( + this, + fn ? [ returned ] : arguments + ); + } + } ); + } ); + fns = null; + } ).promise(); + }, + then: function( onFulfilled, onRejected, onProgress ) { + var maxDepth = 0; + function resolve( depth, deferred, handler, special ) { + return function() { + var that = this, + args = arguments, + mightThrow = function() { + var returned, then; + + // Support: Promises/A+ section 2.3.3.3.3 + // https://promisesaplus.com/#point-59 + // Ignore double-resolution attempts + if ( depth < maxDepth ) { + return; + } + + returned = handler.apply( that, args ); + + // Support: Promises/A+ section 2.3.1 + // https://promisesaplus.com/#point-48 + if ( returned === deferred.promise() ) { + throw new TypeError( "Thenable self-resolution" ); + } + + // Support: Promises/A+ sections 2.3.3.1, 3.5 + // https://promisesaplus.com/#point-54 + // https://promisesaplus.com/#point-75 + // Retrieve `then` only once + then = returned && + + // Support: Promises/A+ section 2.3.4 + // https://promisesaplus.com/#point-64 + // Only check objects and functions for thenability + ( typeof returned === "object" || + typeof returned === "function" ) && + returned.then; + + // Handle a returned thenable + if ( jQuery.isFunction( then ) ) { + + // Special processors (notify) just wait for resolution + if ( special ) { + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ) + ); + + // Normal processors (resolve) also hook into progress + } else { + + // ...and disregard older resolution values + maxDepth++; + + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ), + resolve( maxDepth, deferred, Identity, + deferred.notifyWith ) + ); + } + + // Handle all other returned values + } else { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Identity ) { + that = undefined; + args = [ returned ]; + } + + // Process the value(s) + // Default process is resolve + ( special || deferred.resolveWith )( that, args ); + } + }, + + // Only normal processors (resolve) catch and reject exceptions + process = special ? + mightThrow : + function() { + try { + mightThrow(); + } catch ( e ) { + + if ( jQuery.Deferred.exceptionHook ) { + jQuery.Deferred.exceptionHook( e, + process.stackTrace ); + } + + // Support: Promises/A+ section 2.3.3.3.4.1 + // https://promisesaplus.com/#point-61 + // Ignore post-resolution exceptions + if ( depth + 1 >= maxDepth ) { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Thrower ) { + that = undefined; + args = [ e ]; + } + + deferred.rejectWith( that, args ); + } + } + }; + + // Support: Promises/A+ section 2.3.3.3.1 + // https://promisesaplus.com/#point-57 + // Re-resolve promises immediately to dodge false rejection from + // subsequent errors + if ( depth ) { + process(); + } else { + + // Call an optional hook to record the stack, in case of exception + // since it's otherwise lost when execution goes async + if ( jQuery.Deferred.getStackHook ) { + process.stackTrace = jQuery.Deferred.getStackHook(); + } + window.setTimeout( process ); + } + }; + } + + return jQuery.Deferred( function( newDefer ) { + + // progress_handlers.add( ... ) + tuples[ 0 ][ 3 ].add( + resolve( + 0, + newDefer, + jQuery.isFunction( onProgress ) ? + onProgress : + Identity, + newDefer.notifyWith + ) + ); + + // fulfilled_handlers.add( ... ) + tuples[ 1 ][ 3 ].add( + resolve( + 0, + newDefer, + jQuery.isFunction( onFulfilled ) ? + onFulfilled : + Identity + ) + ); + + // rejected_handlers.add( ... ) + tuples[ 2 ][ 3 ].add( + resolve( + 0, + newDefer, + jQuery.isFunction( onRejected ) ? + onRejected : + Thrower + ) + ); + } ).promise(); + }, + + // Get a promise for this deferred + // If obj is provided, the promise aspect is added to the object + promise: function( obj ) { + return obj != null ? jQuery.extend( obj, promise ) : promise; + } + }, + deferred = {}; + + // Add list-specific methods + jQuery.each( tuples, function( i, tuple ) { + var list = tuple[ 2 ], + stateString = tuple[ 5 ]; + + // promise.progress = list.add + // promise.done = list.add + // promise.fail = list.add + promise[ tuple[ 1 ] ] = list.add; + + // Handle state + if ( stateString ) { + list.add( + function() { + + // state = "resolved" (i.e., fulfilled) + // state = "rejected" + state = stateString; + }, + + // rejected_callbacks.disable + // fulfilled_callbacks.disable + tuples[ 3 - i ][ 2 ].disable, + + // progress_callbacks.lock + tuples[ 0 ][ 2 ].lock + ); + } + + // progress_handlers.fire + // fulfilled_handlers.fire + // rejected_handlers.fire + list.add( tuple[ 3 ].fire ); + + // deferred.notify = function() { deferred.notifyWith(...) } + // deferred.resolve = function() { deferred.resolveWith(...) } + // deferred.reject = function() { deferred.rejectWith(...) } + deferred[ tuple[ 0 ] ] = function() { + deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); + return this; + }; + + // deferred.notifyWith = list.fireWith + // deferred.resolveWith = list.fireWith + // deferred.rejectWith = list.fireWith + deferred[ tuple[ 0 ] + "With" ] = list.fireWith; + } ); + + // Make the deferred a promise + promise.promise( deferred ); + + // Call given func if any + if ( func ) { + func.call( deferred, deferred ); + } + + // All done! + return deferred; + }, + + // Deferred helper + when: function( singleValue ) { + var + + // count of uncompleted subordinates + remaining = arguments.length, + + // count of unprocessed arguments + i = remaining, + + // subordinate fulfillment data + resolveContexts = Array( i ), + resolveValues = slice.call( arguments ), + + // the master Deferred + master = jQuery.Deferred(), + + // subordinate callback factory + updateFunc = function( i ) { + return function( value ) { + resolveContexts[ i ] = this; + resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; + if ( !( --remaining ) ) { + master.resolveWith( resolveContexts, resolveValues ); + } + }; + }; + + // Single- and empty arguments are adopted like Promise.resolve + if ( remaining <= 1 ) { + adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject, + !remaining ); + + // Use .then() to unwrap secondary thenables (cf. gh-3000) + if ( master.state() === "pending" || + jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { + + return master.then(); + } + } + + // Multiple arguments are aggregated like Promise.all array elements + while ( i-- ) { + adoptValue( resolveValues[ i ], updateFunc( i ), master.reject ); + } + + return master.promise(); + } +} ); + + +// These usually indicate a programmer mistake during development, +// warn about them ASAP rather than swallowing them by default. +var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; + +jQuery.Deferred.exceptionHook = function( error, stack ) { + + // Support: IE 8 - 9 only + // Console exists when dev tools are open, which can happen at any time + if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { + window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); + } +}; + + + + +jQuery.readyException = function( error ) { + window.setTimeout( function() { + throw error; + } ); +}; + + + + +// The deferred used on DOM ready +var readyList = jQuery.Deferred(); + +jQuery.fn.ready = function( fn ) { + + readyList + .then( fn ) + + // Wrap jQuery.readyException in a function so that the lookup + // happens at the time of error handling instead of callback + // registration. + .catch( function( error ) { + jQuery.readyException( error ); + } ); + + return this; +}; + +jQuery.extend( { + + // Is the DOM ready to be used? Set to true once it occurs. + isReady: false, + + // A counter to track how many items to wait for before + // the ready event fires. See #6781 + readyWait: 1, + + // Handle when the DOM is ready + ready: function( wait ) { + + // Abort if there are pending holds or we're already ready + if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { + return; + } + + // Remember that the DOM is ready + jQuery.isReady = true; + + // If a normal DOM Ready event fired, decrement, and wait if need be + if ( wait !== true && --jQuery.readyWait > 0 ) { + return; + } + + // If there are functions bound, to execute + readyList.resolveWith( document, [ jQuery ] ); + } +} ); + +jQuery.ready.then = readyList.then; + +// The ready event handler and self cleanup method +function completed() { + document.removeEventListener( "DOMContentLoaded", completed ); + window.removeEventListener( "load", completed ); + jQuery.ready(); +} + +// Catch cases where $(document).ready() is called +// after the browser event has already occurred. +// Support: IE <=9 - 10 only +// Older IE sometimes signals "interactive" too soon +if ( document.readyState === "complete" || + ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { + + // Handle it asynchronously to allow scripts the opportunity to delay ready + window.setTimeout( jQuery.ready ); + +} else { + + // Use the handy event callback + document.addEventListener( "DOMContentLoaded", completed ); + + // A fallback to window.onload, that will always work + window.addEventListener( "load", completed ); +} + + + + +// Multifunctional method to get and set values of a collection +// The value/s can optionally be executed if it's a function +var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { + var i = 0, + len = elems.length, + bulk = key == null; + + // Sets many values + if ( jQuery.type( key ) === "object" ) { + chainable = true; + for ( i in key ) { + access( elems, fn, i, key[ i ], true, emptyGet, raw ); + } + + // Sets one value + } else if ( value !== undefined ) { + chainable = true; + + if ( !jQuery.isFunction( value ) ) { + raw = true; + } + + if ( bulk ) { + + // Bulk operations run against the entire set + if ( raw ) { + fn.call( elems, value ); + fn = null; + + // ...except when executing function values + } else { + bulk = fn; + fn = function( elem, key, value ) { + return bulk.call( jQuery( elem ), value ); + }; + } + } + + if ( fn ) { + for ( ; i < len; i++ ) { + fn( + elems[ i ], key, raw ? + value : + value.call( elems[ i ], i, fn( elems[ i ], key ) ) + ); + } + } + } + + if ( chainable ) { + return elems; + } + + // Gets + if ( bulk ) { + return fn.call( elems ); + } + + return len ? fn( elems[ 0 ], key ) : emptyGet; +}; +var acceptData = function( owner ) { + + // Accepts only: + // - Node + // - Node.ELEMENT_NODE + // - Node.DOCUMENT_NODE + // - Object + // - Any + return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); +}; + + + + +function Data() { + this.expando = jQuery.expando + Data.uid++; +} + +Data.uid = 1; + +Data.prototype = { + + cache: function( owner ) { + + // Check if the owner object already has a cache + var value = owner[ this.expando ]; + + // If not, create one + if ( !value ) { + value = {}; + + // We can accept data for non-element nodes in modern browsers, + // but we should not, see #8335. + // Always return an empty object. + if ( acceptData( owner ) ) { + + // If it is a node unlikely to be stringify-ed or looped over + // use plain assignment + if ( owner.nodeType ) { + owner[ this.expando ] = value; + + // Otherwise secure it in a non-enumerable property + // configurable must be true to allow the property to be + // deleted when data is removed + } else { + Object.defineProperty( owner, this.expando, { + value: value, + configurable: true + } ); + } + } + } + + return value; + }, + set: function( owner, data, value ) { + var prop, + cache = this.cache( owner ); + + // Handle: [ owner, key, value ] args + // Always use camelCase key (gh-2257) + if ( typeof data === "string" ) { + cache[ jQuery.camelCase( data ) ] = value; + + // Handle: [ owner, { properties } ] args + } else { + + // Copy the properties one-by-one to the cache object + for ( prop in data ) { + cache[ jQuery.camelCase( prop ) ] = data[ prop ]; + } + } + return cache; + }, + get: function( owner, key ) { + return key === undefined ? + this.cache( owner ) : + + // Always use camelCase key (gh-2257) + owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ]; + }, + access: function( owner, key, value ) { + + // In cases where either: + // + // 1. No key was specified + // 2. A string key was specified, but no value provided + // + // Take the "read" path and allow the get method to determine + // which value to return, respectively either: + // + // 1. The entire cache object + // 2. The data stored at the key + // + if ( key === undefined || + ( ( key && typeof key === "string" ) && value === undefined ) ) { + + return this.get( owner, key ); + } + + // When the key is not a string, or both a key and value + // are specified, set or extend (existing objects) with either: + // + // 1. An object of properties + // 2. A key and value + // + this.set( owner, key, value ); + + // Since the "set" path can have two possible entry points + // return the expected data based on which path was taken[*] + return value !== undefined ? value : key; + }, + remove: function( owner, key ) { + var i, + cache = owner[ this.expando ]; + + if ( cache === undefined ) { + return; + } + + if ( key !== undefined ) { + + // Support array or space separated string of keys + if ( Array.isArray( key ) ) { + + // If key is an array of keys... + // We always set camelCase keys, so remove that. + key = key.map( jQuery.camelCase ); + } else { + key = jQuery.camelCase( key ); + + // If a key with the spaces exists, use it. + // Otherwise, create an array by matching non-whitespace + key = key in cache ? + [ key ] : + ( key.match( rnothtmlwhite ) || [] ); + } + + i = key.length; + + while ( i-- ) { + delete cache[ key[ i ] ]; + } + } + + // Remove the expando if there's no more data + if ( key === undefined || jQuery.isEmptyObject( cache ) ) { + + // Support: Chrome <=35 - 45 + // Webkit & Blink performance suffers when deleting properties + // from DOM nodes, so set to undefined instead + // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) + if ( owner.nodeType ) { + owner[ this.expando ] = undefined; + } else { + delete owner[ this.expando ]; + } + } + }, + hasData: function( owner ) { + var cache = owner[ this.expando ]; + return cache !== undefined && !jQuery.isEmptyObject( cache ); + } +}; +var dataPriv = new Data(); + +var dataUser = new Data(); + + + +// Implementation Summary +// +// 1. Enforce API surface and semantic compatibility with 1.9.x branch +// 2. Improve the module's maintainability by reducing the storage +// paths to a single mechanism. +// 3. Use the same single mechanism to support "private" and "user" data. +// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) +// 5. Avoid exposing implementation details on user objects (eg. expando properties) +// 6. Provide a clear path for implementation upgrade to WeakMap in 2014 + +var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, + rmultiDash = /[A-Z]/g; + +function getData( data ) { + if ( data === "true" ) { + return true; + } + + if ( data === "false" ) { + return false; + } + + if ( data === "null" ) { + return null; + } + + // Only convert to a number if it doesn't change the string + if ( data === +data + "" ) { + return +data; + } + + if ( rbrace.test( data ) ) { + return JSON.parse( data ); + } + + return data; +} + +function dataAttr( elem, key, data ) { + var name; + + // If nothing was found internally, try to fetch any + // data from the HTML5 data-* attribute + if ( data === undefined && elem.nodeType === 1 ) { + name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); + data = elem.getAttribute( name ); + + if ( typeof data === "string" ) { + try { + data = getData( data ); + } catch ( e ) {} + + // Make sure we set the data so it isn't changed later + dataUser.set( elem, key, data ); + } else { + data = undefined; + } + } + return data; +} + +jQuery.extend( { + hasData: function( elem ) { + return dataUser.hasData( elem ) || dataPriv.hasData( elem ); + }, + + data: function( elem, name, data ) { + return dataUser.access( elem, name, data ); + }, + + removeData: function( elem, name ) { + dataUser.remove( elem, name ); + }, + + // TODO: Now that all calls to _data and _removeData have been replaced + // with direct calls to dataPriv methods, these can be deprecated. + _data: function( elem, name, data ) { + return dataPriv.access( elem, name, data ); + }, + + _removeData: function( elem, name ) { + dataPriv.remove( elem, name ); + } +} ); + +jQuery.fn.extend( { + data: function( key, value ) { + var i, name, data, + elem = this[ 0 ], + attrs = elem && elem.attributes; + + // Gets all values + if ( key === undefined ) { + if ( this.length ) { + data = dataUser.get( elem ); + + if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { + i = attrs.length; + while ( i-- ) { + + // Support: IE 11 only + // The attrs elements can be null (#14894) + if ( attrs[ i ] ) { + name = attrs[ i ].name; + if ( name.indexOf( "data-" ) === 0 ) { + name = jQuery.camelCase( name.slice( 5 ) ); + dataAttr( elem, name, data[ name ] ); + } + } + } + dataPriv.set( elem, "hasDataAttrs", true ); + } + } + + return data; + } + + // Sets multiple values + if ( typeof key === "object" ) { + return this.each( function() { + dataUser.set( this, key ); + } ); + } + + return access( this, function( value ) { + var data; + + // The calling jQuery object (element matches) is not empty + // (and therefore has an element appears at this[ 0 ]) and the + // `value` parameter was not undefined. An empty jQuery object + // will result in `undefined` for elem = this[ 0 ] which will + // throw an exception if an attempt to read a data cache is made. + if ( elem && value === undefined ) { + + // Attempt to get data from the cache + // The key will always be camelCased in Data + data = dataUser.get( elem, key ); + if ( data !== undefined ) { + return data; + } + + // Attempt to "discover" the data in + // HTML5 custom data-* attrs + data = dataAttr( elem, key ); + if ( data !== undefined ) { + return data; + } + + // We tried really hard, but the data doesn't exist. + return; + } + + // Set the data... + this.each( function() { + + // We always store the camelCased key + dataUser.set( this, key, value ); + } ); + }, null, value, arguments.length > 1, null, true ); + }, + + removeData: function( key ) { + return this.each( function() { + dataUser.remove( this, key ); + } ); + } +} ); + + +jQuery.extend( { + queue: function( elem, type, data ) { + var queue; + + if ( elem ) { + type = ( type || "fx" ) + "queue"; + queue = dataPriv.get( elem, type ); + + // Speed up dequeue by getting out quickly if this is just a lookup + if ( data ) { + if ( !queue || Array.isArray( data ) ) { + queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); + } else { + queue.push( data ); + } + } + return queue || []; + } + }, + + dequeue: function( elem, type ) { + type = type || "fx"; + + var queue = jQuery.queue( elem, type ), + startLength = queue.length, + fn = queue.shift(), + hooks = jQuery._queueHooks( elem, type ), + next = function() { + jQuery.dequeue( elem, type ); + }; + + // If the fx queue is dequeued, always remove the progress sentinel + if ( fn === "inprogress" ) { + fn = queue.shift(); + startLength--; + } + + if ( fn ) { + + // Add a progress sentinel to prevent the fx queue from being + // automatically dequeued + if ( type === "fx" ) { + queue.unshift( "inprogress" ); + } + + // Clear up the last queue stop function + delete hooks.stop; + fn.call( elem, next, hooks ); + } + + if ( !startLength && hooks ) { + hooks.empty.fire(); + } + }, + + // Not public - generate a queueHooks object, or return the current one + _queueHooks: function( elem, type ) { + var key = type + "queueHooks"; + return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { + empty: jQuery.Callbacks( "once memory" ).add( function() { + dataPriv.remove( elem, [ type + "queue", key ] ); + } ) + } ); + } +} ); + +jQuery.fn.extend( { + queue: function( type, data ) { + var setter = 2; + + if ( typeof type !== "string" ) { + data = type; + type = "fx"; + setter--; + } + + if ( arguments.length < setter ) { + return jQuery.queue( this[ 0 ], type ); + } + + return data === undefined ? + this : + this.each( function() { + var queue = jQuery.queue( this, type, data ); + + // Ensure a hooks for this queue + jQuery._queueHooks( this, type ); + + if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { + jQuery.dequeue( this, type ); + } + } ); + }, + dequeue: function( type ) { + return this.each( function() { + jQuery.dequeue( this, type ); + } ); + }, + clearQueue: function( type ) { + return this.queue( type || "fx", [] ); + }, + + // Get a promise resolved when queues of a certain type + // are emptied (fx is the type by default) + promise: function( type, obj ) { + var tmp, + count = 1, + defer = jQuery.Deferred(), + elements = this, + i = this.length, + resolve = function() { + if ( !( --count ) ) { + defer.resolveWith( elements, [ elements ] ); + } + }; + + if ( typeof type !== "string" ) { + obj = type; + type = undefined; + } + type = type || "fx"; + + while ( i-- ) { + tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); + if ( tmp && tmp.empty ) { + count++; + tmp.empty.add( resolve ); + } + } + resolve(); + return defer.promise( obj ); + } +} ); +var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; + +var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); + + +var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; + +var isHiddenWithinTree = function( elem, el ) { + + // isHiddenWithinTree might be called from jQuery#filter function; + // in that case, element will be second argument + elem = el || elem; + + // Inline style trumps all + return elem.style.display === "none" || + elem.style.display === "" && + + // Otherwise, check computed style + // Support: Firefox <=43 - 45 + // Disconnected elements can have computed display: none, so first confirm that elem is + // in the document. + jQuery.contains( elem.ownerDocument, elem ) && + + jQuery.css( elem, "display" ) === "none"; + }; + +var swap = function( elem, options, callback, args ) { + var ret, name, + old = {}; + + // Remember the old values, and insert the new ones + for ( name in options ) { + old[ name ] = elem.style[ name ]; + elem.style[ name ] = options[ name ]; + } + + ret = callback.apply( elem, args || [] ); + + // Revert the old values + for ( name in options ) { + elem.style[ name ] = old[ name ]; + } + + return ret; +}; + + + + +function adjustCSS( elem, prop, valueParts, tween ) { + var adjusted, + scale = 1, + maxIterations = 20, + currentValue = tween ? + function() { + return tween.cur(); + } : + function() { + return jQuery.css( elem, prop, "" ); + }, + initial = currentValue(), + unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), + + // Starting value computation is required for potential unit mismatches + initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && + rcssNum.exec( jQuery.css( elem, prop ) ); + + if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { + + // Trust units reported by jQuery.css + unit = unit || initialInUnit[ 3 ]; + + // Make sure we update the tween properties later on + valueParts = valueParts || []; + + // Iteratively approximate from a nonzero starting point + initialInUnit = +initial || 1; + + do { + + // If previous iteration zeroed out, double until we get *something*. + // Use string for doubling so we don't accidentally see scale as unchanged below + scale = scale || ".5"; + + // Adjust and apply + initialInUnit = initialInUnit / scale; + jQuery.style( elem, prop, initialInUnit + unit ); + + // Update scale, tolerating zero or NaN from tween.cur() + // Break the loop if scale is unchanged or perfect, or if we've just had enough. + } while ( + scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations + ); + } + + if ( valueParts ) { + initialInUnit = +initialInUnit || +initial || 0; + + // Apply relative offset (+=/-=) if specified + adjusted = valueParts[ 1 ] ? + initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : + +valueParts[ 2 ]; + if ( tween ) { + tween.unit = unit; + tween.start = initialInUnit; + tween.end = adjusted; + } + } + return adjusted; +} + + +var defaultDisplayMap = {}; + +function getDefaultDisplay( elem ) { + var temp, + doc = elem.ownerDocument, + nodeName = elem.nodeName, + display = defaultDisplayMap[ nodeName ]; + + if ( display ) { + return display; + } + + temp = doc.body.appendChild( doc.createElement( nodeName ) ); + display = jQuery.css( temp, "display" ); + + temp.parentNode.removeChild( temp ); + + if ( display === "none" ) { + display = "block"; + } + defaultDisplayMap[ nodeName ] = display; + + return display; +} + +function showHide( elements, show ) { + var display, elem, + values = [], + index = 0, + length = elements.length; + + // Determine new display value for elements that need to change + for ( ; index < length; index++ ) { + elem = elements[ index ]; + if ( !elem.style ) { + continue; + } + + display = elem.style.display; + if ( show ) { + + // Since we force visibility upon cascade-hidden elements, an immediate (and slow) + // check is required in this first loop unless we have a nonempty display value (either + // inline or about-to-be-restored) + if ( display === "none" ) { + values[ index ] = dataPriv.get( elem, "display" ) || null; + if ( !values[ index ] ) { + elem.style.display = ""; + } + } + if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { + values[ index ] = getDefaultDisplay( elem ); + } + } else { + if ( display !== "none" ) { + values[ index ] = "none"; + + // Remember what we're overwriting + dataPriv.set( elem, "display", display ); + } + } + } + + // Set the display of the elements in a second loop to avoid constant reflow + for ( index = 0; index < length; index++ ) { + if ( values[ index ] != null ) { + elements[ index ].style.display = values[ index ]; + } + } + + return elements; +} + +jQuery.fn.extend( { + show: function() { + return showHide( this, true ); + }, + hide: function() { + return showHide( this ); + }, + toggle: function( state ) { + if ( typeof state === "boolean" ) { + return state ? this.show() : this.hide(); + } + + return this.each( function() { + if ( isHiddenWithinTree( this ) ) { + jQuery( this ).show(); + } else { + jQuery( this ).hide(); + } + } ); + } +} ); +var rcheckableType = ( /^(?:checkbox|radio)$/i ); + +var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i ); + +var rscriptType = ( /^$|\/(?:java|ecma)script/i ); + + + +// We have to close these tags to support XHTML (#13200) +var wrapMap = { + + // Support: IE <=9 only + option: [ 1, "<select multiple='multiple'>", "</select>" ], + + // XHTML parsers do not magically insert elements in the + // same way that tag soup parsers do. So we cannot shorten + // this by omitting <tbody> or other required elements. + thead: [ 1, "<table>", "</table>" ], + col: [ 2, "<table><colgroup>", "</colgroup></table>" ], + tr: [ 2, "<table><tbody>", "</tbody></table>" ], + td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ], + + _default: [ 0, "", "" ] +}; + +// Support: IE <=9 only +wrapMap.optgroup = wrapMap.option; + +wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; +wrapMap.th = wrapMap.td; + + +function getAll( context, tag ) { + + // Support: IE <=9 - 11 only + // Use typeof to avoid zero-argument method invocation on host objects (#15151) + var ret; + + if ( typeof context.getElementsByTagName !== "undefined" ) { + ret = context.getElementsByTagName( tag || "*" ); + + } else if ( typeof context.querySelectorAll !== "undefined" ) { + ret = context.querySelectorAll( tag || "*" ); + + } else { + ret = []; + } + + if ( tag === undefined || tag && nodeName( context, tag ) ) { + return jQuery.merge( [ context ], ret ); + } + + return ret; +} + + +// Mark scripts as having already been evaluated +function setGlobalEval( elems, refElements ) { + var i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + dataPriv.set( + elems[ i ], + "globalEval", + !refElements || dataPriv.get( refElements[ i ], "globalEval" ) + ); + } +} + + +var rhtml = /<|&#?\w+;/; + +function buildFragment( elems, context, scripts, selection, ignored ) { + var elem, tmp, tag, wrap, contains, j, + fragment = context.createDocumentFragment(), + nodes = [], + i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + elem = elems[ i ]; + + if ( elem || elem === 0 ) { + + // Add nodes directly + if ( jQuery.type( elem ) === "object" ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); + + // Convert non-html into a text node + } else if ( !rhtml.test( elem ) ) { + nodes.push( context.createTextNode( elem ) ); + + // Convert html into DOM nodes + } else { + tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); + + // Deserialize a standard representation + tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); + wrap = wrapMap[ tag ] || wrapMap._default; + tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; + + // Descend through wrappers to the right content + j = wrap[ 0 ]; + while ( j-- ) { + tmp = tmp.lastChild; + } + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, tmp.childNodes ); + + // Remember the top-level container + tmp = fragment.firstChild; + + // Ensure the created nodes are orphaned (#12392) + tmp.textContent = ""; + } + } + } + + // Remove wrapper from fragment + fragment.textContent = ""; + + i = 0; + while ( ( elem = nodes[ i++ ] ) ) { + + // Skip elements already in the context collection (trac-4087) + if ( selection && jQuery.inArray( elem, selection ) > -1 ) { + if ( ignored ) { + ignored.push( elem ); + } + continue; + } + + contains = jQuery.contains( elem.ownerDocument, elem ); + + // Append to fragment + tmp = getAll( fragment.appendChild( elem ), "script" ); + + // Preserve script evaluation history + if ( contains ) { + setGlobalEval( tmp ); + } + + // Capture executables + if ( scripts ) { + j = 0; + while ( ( elem = tmp[ j++ ] ) ) { + if ( rscriptType.test( elem.type || "" ) ) { + scripts.push( elem ); + } + } + } + } + + return fragment; +} + + +( function() { + var fragment = document.createDocumentFragment(), + div = fragment.appendChild( document.createElement( "div" ) ), + input = document.createElement( "input" ); + + // Support: Android 4.0 - 4.3 only + // Check state lost if the name is set (#11217) + // Support: Windows Web Apps (WWA) + // `name` and `type` must use .setAttribute for WWA (#14901) + input.setAttribute( "type", "radio" ); + input.setAttribute( "checked", "checked" ); + input.setAttribute( "name", "t" ); + + div.appendChild( input ); + + // Support: Android <=4.1 only + // Older WebKit doesn't clone checked state correctly in fragments + support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; + + // Support: IE <=11 only + // Make sure textarea (and checkbox) defaultValue is properly cloned + div.innerHTML = "<textarea>x</textarea>"; + support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; +} )(); +var documentElement = document.documentElement; + + + +var + rkeyEvent = /^key/, + rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, + rtypenamespace = /^([^.]*)(?:\.(.+)|)/; + +function returnTrue() { + return true; +} + +function returnFalse() { + return false; +} + +// Support: IE <=9 only +// See #13393 for more info +function safeActiveElement() { + try { + return document.activeElement; + } catch ( err ) { } +} + +function on( elem, types, selector, data, fn, one ) { + var origFn, type; + + // Types can be a map of types/handlers + if ( typeof types === "object" ) { + + // ( types-Object, selector, data ) + if ( typeof selector !== "string" ) { + + // ( types-Object, data ) + data = data || selector; + selector = undefined; + } + for ( type in types ) { + on( elem, type, selector, data, types[ type ], one ); + } + return elem; + } + + if ( data == null && fn == null ) { + + // ( types, fn ) + fn = selector; + data = selector = undefined; + } else if ( fn == null ) { + if ( typeof selector === "string" ) { + + // ( types, selector, fn ) + fn = data; + data = undefined; + } else { + + // ( types, data, fn ) + fn = data; + data = selector; + selector = undefined; + } + } + if ( fn === false ) { + fn = returnFalse; + } else if ( !fn ) { + return elem; + } + + if ( one === 1 ) { + origFn = fn; + fn = function( event ) { + + // Can use an empty set, since event contains the info + jQuery().off( event ); + return origFn.apply( this, arguments ); + }; + + // Use same guid so caller can remove using origFn + fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); + } + return elem.each( function() { + jQuery.event.add( this, types, fn, data, selector ); + } ); +} + +/* + * Helper functions for managing events -- not part of the public interface. + * Props to Dean Edwards' addEvent library for many of the ideas. + */ +jQuery.event = { + + global: {}, + + add: function( elem, types, handler, data, selector ) { + + var handleObjIn, eventHandle, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.get( elem ); + + // Don't attach events to noData or text/comment nodes (but allow plain objects) + if ( !elemData ) { + return; + } + + // Caller can pass in an object of custom data in lieu of the handler + if ( handler.handler ) { + handleObjIn = handler; + handler = handleObjIn.handler; + selector = handleObjIn.selector; + } + + // Ensure that invalid selectors throw exceptions at attach time + // Evaluate against documentElement in case elem is a non-element node (e.g., document) + if ( selector ) { + jQuery.find.matchesSelector( documentElement, selector ); + } + + // Make sure that the handler has a unique ID, used to find/remove it later + if ( !handler.guid ) { + handler.guid = jQuery.guid++; + } + + // Init the element's event structure and main handler, if this is the first + if ( !( events = elemData.events ) ) { + events = elemData.events = {}; + } + if ( !( eventHandle = elemData.handle ) ) { + eventHandle = elemData.handle = function( e ) { + + // Discard the second event of a jQuery.event.trigger() and + // when an event is called after a page has unloaded + return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? + jQuery.event.dispatch.apply( elem, arguments ) : undefined; + }; + } + + // Handle multiple events separated by a space + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // There *must* be a type, no attaching namespace-only handlers + if ( !type ) { + continue; + } + + // If event changes its type, use the special event handlers for the changed type + special = jQuery.event.special[ type ] || {}; + + // If selector defined, determine special event api type, otherwise given type + type = ( selector ? special.delegateType : special.bindType ) || type; + + // Update special based on newly reset type + special = jQuery.event.special[ type ] || {}; + + // handleObj is passed to all event handlers + handleObj = jQuery.extend( { + type: type, + origType: origType, + data: data, + handler: handler, + guid: handler.guid, + selector: selector, + needsContext: selector && jQuery.expr.match.needsContext.test( selector ), + namespace: namespaces.join( "." ) + }, handleObjIn ); + + // Init the event handler queue if we're the first + if ( !( handlers = events[ type ] ) ) { + handlers = events[ type ] = []; + handlers.delegateCount = 0; + + // Only use addEventListener if the special events handler returns false + if ( !special.setup || + special.setup.call( elem, data, namespaces, eventHandle ) === false ) { + + if ( elem.addEventListener ) { + elem.addEventListener( type, eventHandle ); + } + } + } + + if ( special.add ) { + special.add.call( elem, handleObj ); + + if ( !handleObj.handler.guid ) { + handleObj.handler.guid = handler.guid; + } + } + + // Add to the element's handler list, delegates in front + if ( selector ) { + handlers.splice( handlers.delegateCount++, 0, handleObj ); + } else { + handlers.push( handleObj ); + } + + // Keep track of which events have ever been used, for event optimization + jQuery.event.global[ type ] = true; + } + + }, + + // Detach an event or set of events from an element + remove: function( elem, types, handler, selector, mappedTypes ) { + + var j, origCount, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); + + if ( !elemData || !( events = elemData.events ) ) { + return; + } + + // Once for each type.namespace in types; type may be omitted + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // Unbind all events (on this namespace, if provided) for the element + if ( !type ) { + for ( type in events ) { + jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); + } + continue; + } + + special = jQuery.event.special[ type ] || {}; + type = ( selector ? special.delegateType : special.bindType ) || type; + handlers = events[ type ] || []; + tmp = tmp[ 2 ] && + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); + + // Remove matching events + origCount = j = handlers.length; + while ( j-- ) { + handleObj = handlers[ j ]; + + if ( ( mappedTypes || origType === handleObj.origType ) && + ( !handler || handler.guid === handleObj.guid ) && + ( !tmp || tmp.test( handleObj.namespace ) ) && + ( !selector || selector === handleObj.selector || + selector === "**" && handleObj.selector ) ) { + handlers.splice( j, 1 ); + + if ( handleObj.selector ) { + handlers.delegateCount--; + } + if ( special.remove ) { + special.remove.call( elem, handleObj ); + } + } + } + + // Remove generic event handler if we removed something and no more handlers exist + // (avoids potential for endless recursion during removal of special event handlers) + if ( origCount && !handlers.length ) { + if ( !special.teardown || + special.teardown.call( elem, namespaces, elemData.handle ) === false ) { + + jQuery.removeEvent( elem, type, elemData.handle ); + } + + delete events[ type ]; + } + } + + // Remove data and the expando if it's no longer used + if ( jQuery.isEmptyObject( events ) ) { + dataPriv.remove( elem, "handle events" ); + } + }, + + dispatch: function( nativeEvent ) { + + // Make a writable jQuery.Event from the native event object + var event = jQuery.event.fix( nativeEvent ); + + var i, j, ret, matched, handleObj, handlerQueue, + args = new Array( arguments.length ), + handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [], + special = jQuery.event.special[ event.type ] || {}; + + // Use the fix-ed jQuery.Event rather than the (read-only) native event + args[ 0 ] = event; + + for ( i = 1; i < arguments.length; i++ ) { + args[ i ] = arguments[ i ]; + } + + event.delegateTarget = this; + + // Call the preDispatch hook for the mapped type, and let it bail if desired + if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { + return; + } + + // Determine handlers + handlerQueue = jQuery.event.handlers.call( this, event, handlers ); + + // Run delegates first; they may want to stop propagation beneath us + i = 0; + while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { + event.currentTarget = matched.elem; + + j = 0; + while ( ( handleObj = matched.handlers[ j++ ] ) && + !event.isImmediatePropagationStopped() ) { + + // Triggered event must either 1) have no namespace, or 2) have namespace(s) + // a subset or equal to those in the bound event (both can have no namespace). + if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) { + + event.handleObj = handleObj; + event.data = handleObj.data; + + ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || + handleObj.handler ).apply( matched.elem, args ); + + if ( ret !== undefined ) { + if ( ( event.result = ret ) === false ) { + event.preventDefault(); + event.stopPropagation(); + } + } + } + } + } + + // Call the postDispatch hook for the mapped type + if ( special.postDispatch ) { + special.postDispatch.call( this, event ); + } + + return event.result; + }, + + handlers: function( event, handlers ) { + var i, handleObj, sel, matchedHandlers, matchedSelectors, + handlerQueue = [], + delegateCount = handlers.delegateCount, + cur = event.target; + + // Find delegate handlers + if ( delegateCount && + + // Support: IE <=9 + // Black-hole SVG <use> instance trees (trac-13180) + cur.nodeType && + + // Support: Firefox <=42 + // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) + // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click + // Support: IE 11 only + // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) + !( event.type === "click" && event.button >= 1 ) ) { + + for ( ; cur !== this; cur = cur.parentNode || this ) { + + // Don't check non-elements (#13208) + // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) + if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { + matchedHandlers = []; + matchedSelectors = {}; + for ( i = 0; i < delegateCount; i++ ) { + handleObj = handlers[ i ]; + + // Don't conflict with Object.prototype properties (#13203) + sel = handleObj.selector + " "; + + if ( matchedSelectors[ sel ] === undefined ) { + matchedSelectors[ sel ] = handleObj.needsContext ? + jQuery( sel, this ).index( cur ) > -1 : + jQuery.find( sel, this, null, [ cur ] ).length; + } + if ( matchedSelectors[ sel ] ) { + matchedHandlers.push( handleObj ); + } + } + if ( matchedHandlers.length ) { + handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); + } + } + } + } + + // Add the remaining (directly-bound) handlers + cur = this; + if ( delegateCount < handlers.length ) { + handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); + } + + return handlerQueue; + }, + + addProp: function( name, hook ) { + Object.defineProperty( jQuery.Event.prototype, name, { + enumerable: true, + configurable: true, + + get: jQuery.isFunction( hook ) ? + function() { + if ( this.originalEvent ) { + return hook( this.originalEvent ); + } + } : + function() { + if ( this.originalEvent ) { + return this.originalEvent[ name ]; + } + }, + + set: function( value ) { + Object.defineProperty( this, name, { + enumerable: true, + configurable: true, + writable: true, + value: value + } ); + } + } ); + }, + + fix: function( originalEvent ) { + return originalEvent[ jQuery.expando ] ? + originalEvent : + new jQuery.Event( originalEvent ); + }, + + special: { + load: { + + // Prevent triggered image.load events from bubbling to window.load + noBubble: true + }, + focus: { + + // Fire native event if possible so blur/focus sequence is correct + trigger: function() { + if ( this !== safeActiveElement() && this.focus ) { + this.focus(); + return false; + } + }, + delegateType: "focusin" + }, + blur: { + trigger: function() { + if ( this === safeActiveElement() && this.blur ) { + this.blur(); + return false; + } + }, + delegateType: "focusout" + }, + click: { + + // For checkbox, fire native event so checked state will be right + trigger: function() { + if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) { + this.click(); + return false; + } + }, + + // For cross-browser consistency, don't fire native .click() on links + _default: function( event ) { + return nodeName( event.target, "a" ); + } + }, + + beforeunload: { + postDispatch: function( event ) { + + // Support: Firefox 20+ + // Firefox doesn't alert if the returnValue field is not set. + if ( event.result !== undefined && event.originalEvent ) { + event.originalEvent.returnValue = event.result; + } + } + } + } +}; + +jQuery.removeEvent = function( elem, type, handle ) { + + // This "if" is needed for plain objects + if ( elem.removeEventListener ) { + elem.removeEventListener( type, handle ); + } +}; + +jQuery.Event = function( src, props ) { + + // Allow instantiation without the 'new' keyword + if ( !( this instanceof jQuery.Event ) ) { + return new jQuery.Event( src, props ); + } + + // Event object + if ( src && src.type ) { + this.originalEvent = src; + this.type = src.type; + + // Events bubbling up the document may have been marked as prevented + // by a handler lower down the tree; reflect the correct value. + this.isDefaultPrevented = src.defaultPrevented || + src.defaultPrevented === undefined && + + // Support: Android <=2.3 only + src.returnValue === false ? + returnTrue : + returnFalse; + + // Create target properties + // Support: Safari <=6 - 7 only + // Target should not be a text node (#504, #13143) + this.target = ( src.target && src.target.nodeType === 3 ) ? + src.target.parentNode : + src.target; + + this.currentTarget = src.currentTarget; + this.relatedTarget = src.relatedTarget; + + // Event type + } else { + this.type = src; + } + + // Put explicitly provided properties onto the event object + if ( props ) { + jQuery.extend( this, props ); + } + + // Create a timestamp if incoming event doesn't have one + this.timeStamp = src && src.timeStamp || jQuery.now(); + + // Mark it as fixed + this[ jQuery.expando ] = true; +}; + +// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding +// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html +jQuery.Event.prototype = { + constructor: jQuery.Event, + isDefaultPrevented: returnFalse, + isPropagationStopped: returnFalse, + isImmediatePropagationStopped: returnFalse, + isSimulated: false, + + preventDefault: function() { + var e = this.originalEvent; + + this.isDefaultPrevented = returnTrue; + + if ( e && !this.isSimulated ) { + e.preventDefault(); + } + }, + stopPropagation: function() { + var e = this.originalEvent; + + this.isPropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopPropagation(); + } + }, + stopImmediatePropagation: function() { + var e = this.originalEvent; + + this.isImmediatePropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopImmediatePropagation(); + } + + this.stopPropagation(); + } +}; + +// Includes all common event props including KeyEvent and MouseEvent specific props +jQuery.each( { + altKey: true, + bubbles: true, + cancelable: true, + changedTouches: true, + ctrlKey: true, + detail: true, + eventPhase: true, + metaKey: true, + pageX: true, + pageY: true, + shiftKey: true, + view: true, + "char": true, + charCode: true, + key: true, + keyCode: true, + button: true, + buttons: true, + clientX: true, + clientY: true, + offsetX: true, + offsetY: true, + pointerId: true, + pointerType: true, + screenX: true, + screenY: true, + targetTouches: true, + toElement: true, + touches: true, + + which: function( event ) { + var button = event.button; + + // Add which for key events + if ( event.which == null && rkeyEvent.test( event.type ) ) { + return event.charCode != null ? event.charCode : event.keyCode; + } + + // Add which for click: 1 === left; 2 === middle; 3 === right + if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) { + if ( button & 1 ) { + return 1; + } + + if ( button & 2 ) { + return 3; + } + + if ( button & 4 ) { + return 2; + } + + return 0; + } + + return event.which; + } +}, jQuery.event.addProp ); + +// Create mouseenter/leave events using mouseover/out and event-time checks +// so that event delegation works in jQuery. +// Do the same for pointerenter/pointerleave and pointerover/pointerout +// +// Support: Safari 7 only +// Safari sends mouseenter too often; see: +// https://bugs.chromium.org/p/chromium/issues/detail?id=470258 +// for the description of the bug (it existed in older Chrome versions as well). +jQuery.each( { + mouseenter: "mouseover", + mouseleave: "mouseout", + pointerenter: "pointerover", + pointerleave: "pointerout" +}, function( orig, fix ) { + jQuery.event.special[ orig ] = { + delegateType: fix, + bindType: fix, + + handle: function( event ) { + var ret, + target = this, + related = event.relatedTarget, + handleObj = event.handleObj; + + // For mouseenter/leave call the handler if related is outside the target. + // NB: No relatedTarget if the mouse left/entered the browser window + if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { + event.type = handleObj.origType; + ret = handleObj.handler.apply( this, arguments ); + event.type = fix; + } + return ret; + } + }; +} ); + +jQuery.fn.extend( { + + on: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn ); + }, + one: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn, 1 ); + }, + off: function( types, selector, fn ) { + var handleObj, type; + if ( types && types.preventDefault && types.handleObj ) { + + // ( event ) dispatched jQuery.Event + handleObj = types.handleObj; + jQuery( types.delegateTarget ).off( + handleObj.namespace ? + handleObj.origType + "." + handleObj.namespace : + handleObj.origType, + handleObj.selector, + handleObj.handler + ); + return this; + } + if ( typeof types === "object" ) { + + // ( types-object [, selector] ) + for ( type in types ) { + this.off( type, selector, types[ type ] ); + } + return this; + } + if ( selector === false || typeof selector === "function" ) { + + // ( types [, fn] ) + fn = selector; + selector = undefined; + } + if ( fn === false ) { + fn = returnFalse; + } + return this.each( function() { + jQuery.event.remove( this, types, fn, selector ); + } ); + } +} ); + + +var + + /* eslint-disable max-len */ + + // See https://github.com/eslint/eslint/issues/3229 + rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi, + + /* eslint-enable */ + + // Support: IE <=10 - 11, Edge 12 - 13 + // In IE/Edge using regex groups here causes severe slowdowns. + // See https://connect.microsoft.com/IE/feedback/details/1736512/ + rnoInnerhtml = /<script|<style|<link/i, + + // checked="checked" or checked + rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i, + rscriptTypeMasked = /^true\/(.*)/, + rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g; + +// Prefer a tbody over its parent table for containing new rows +function manipulationTarget( elem, content ) { + if ( nodeName( elem, "table" ) && + nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { + + return jQuery( ">tbody", elem )[ 0 ] || elem; + } + + return elem; +} + +// Replace/restore the type attribute of script elements for safe DOM manipulation +function disableScript( elem ) { + elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type; + return elem; +} +function restoreScript( elem ) { + var match = rscriptTypeMasked.exec( elem.type ); + + if ( match ) { + elem.type = match[ 1 ]; + } else { + elem.removeAttribute( "type" ); + } + + return elem; +} + +function cloneCopyEvent( src, dest ) { + var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events; + + if ( dest.nodeType !== 1 ) { + return; + } + + // 1. Copy private data: events, handlers, etc. + if ( dataPriv.hasData( src ) ) { + pdataOld = dataPriv.access( src ); + pdataCur = dataPriv.set( dest, pdataOld ); + events = pdataOld.events; + + if ( events ) { + delete pdataCur.handle; + pdataCur.events = {}; + + for ( type in events ) { + for ( i = 0, l = events[ type ].length; i < l; i++ ) { + jQuery.event.add( dest, type, events[ type ][ i ] ); + } + } + } + } + + // 2. Copy user data + if ( dataUser.hasData( src ) ) { + udataOld = dataUser.access( src ); + udataCur = jQuery.extend( {}, udataOld ); + + dataUser.set( dest, udataCur ); + } +} + +// Fix IE bugs, see support tests +function fixInput( src, dest ) { + var nodeName = dest.nodeName.toLowerCase(); + + // Fails to persist the checked state of a cloned checkbox or radio button. + if ( nodeName === "input" && rcheckableType.test( src.type ) ) { + dest.checked = src.checked; + + // Fails to return the selected option to the default selected state when cloning options + } else if ( nodeName === "input" || nodeName === "textarea" ) { + dest.defaultValue = src.defaultValue; + } +} + +function domManip( collection, args, callback, ignored ) { + + // Flatten any nested arrays + args = concat.apply( [], args ); + + var fragment, first, scripts, hasScripts, node, doc, + i = 0, + l = collection.length, + iNoClone = l - 1, + value = args[ 0 ], + isFunction = jQuery.isFunction( value ); + + // We can't cloneNode fragments that contain checked, in WebKit + if ( isFunction || + ( l > 1 && typeof value === "string" && + !support.checkClone && rchecked.test( value ) ) ) { + return collection.each( function( index ) { + var self = collection.eq( index ); + if ( isFunction ) { + args[ 0 ] = value.call( this, index, self.html() ); + } + domManip( self, args, callback, ignored ); + } ); + } + + if ( l ) { + fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored ); + first = fragment.firstChild; + + if ( fragment.childNodes.length === 1 ) { + fragment = first; + } + + // Require either new content or an interest in ignored elements to invoke the callback + if ( first || ignored ) { + scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); + hasScripts = scripts.length; + + // Use the original fragment for the last item + // instead of the first because it can end up + // being emptied incorrectly in certain situations (#8070). + for ( ; i < l; i++ ) { + node = fragment; + + if ( i !== iNoClone ) { + node = jQuery.clone( node, true, true ); + + // Keep references to cloned scripts for later restoration + if ( hasScripts ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( scripts, getAll( node, "script" ) ); + } + } + + callback.call( collection[ i ], node, i ); + } + + if ( hasScripts ) { + doc = scripts[ scripts.length - 1 ].ownerDocument; + + // Reenable scripts + jQuery.map( scripts, restoreScript ); + + // Evaluate executable scripts on first document insertion + for ( i = 0; i < hasScripts; i++ ) { + node = scripts[ i ]; + if ( rscriptType.test( node.type || "" ) && + !dataPriv.access( node, "globalEval" ) && + jQuery.contains( doc, node ) ) { + + if ( node.src ) { + + // Optional AJAX dependency, but won't run scripts if not present + if ( jQuery._evalUrl ) { + jQuery._evalUrl( node.src ); + } + } else { + DOMEval( node.textContent.replace( rcleanScript, "" ), doc ); + } + } + } + } + } + } + + return collection; +} + +function remove( elem, selector, keepData ) { + var node, + nodes = selector ? jQuery.filter( selector, elem ) : elem, + i = 0; + + for ( ; ( node = nodes[ i ] ) != null; i++ ) { + if ( !keepData && node.nodeType === 1 ) { + jQuery.cleanData( getAll( node ) ); + } + + if ( node.parentNode ) { + if ( keepData && jQuery.contains( node.ownerDocument, node ) ) { + setGlobalEval( getAll( node, "script" ) ); + } + node.parentNode.removeChild( node ); + } + } + + return elem; +} + +jQuery.extend( { + htmlPrefilter: function( html ) { + return html.replace( rxhtmlTag, "<$1></$2>" ); + }, + + clone: function( elem, dataAndEvents, deepDataAndEvents ) { + var i, l, srcElements, destElements, + clone = elem.cloneNode( true ), + inPage = jQuery.contains( elem.ownerDocument, elem ); + + // Fix IE cloning issues + if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && + !jQuery.isXMLDoc( elem ) ) { + + // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2 + destElements = getAll( clone ); + srcElements = getAll( elem ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + fixInput( srcElements[ i ], destElements[ i ] ); + } + } + + // Copy the events from the original to the clone + if ( dataAndEvents ) { + if ( deepDataAndEvents ) { + srcElements = srcElements || getAll( elem ); + destElements = destElements || getAll( clone ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + cloneCopyEvent( srcElements[ i ], destElements[ i ] ); + } + } else { + cloneCopyEvent( elem, clone ); + } + } + + // Preserve script evaluation history + destElements = getAll( clone, "script" ); + if ( destElements.length > 0 ) { + setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); + } + + // Return the cloned set + return clone; + }, + + cleanData: function( elems ) { + var data, elem, type, + special = jQuery.event.special, + i = 0; + + for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) { + if ( acceptData( elem ) ) { + if ( ( data = elem[ dataPriv.expando ] ) ) { + if ( data.events ) { + for ( type in data.events ) { + if ( special[ type ] ) { + jQuery.event.remove( elem, type ); + + // This is a shortcut to avoid jQuery.event.remove's overhead + } else { + jQuery.removeEvent( elem, type, data.handle ); + } + } + } + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataPriv.expando ] = undefined; + } + if ( elem[ dataUser.expando ] ) { + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataUser.expando ] = undefined; + } + } + } + } +} ); + +jQuery.fn.extend( { + detach: function( selector ) { + return remove( this, selector, true ); + }, + + remove: function( selector ) { + return remove( this, selector ); + }, + + text: function( value ) { + return access( this, function( value ) { + return value === undefined ? + jQuery.text( this ) : + this.empty().each( function() { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + this.textContent = value; + } + } ); + }, null, value, arguments.length ); + }, + + append: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.appendChild( elem ); + } + } ); + }, + + prepend: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.insertBefore( elem, target.firstChild ); + } + } ); + }, + + before: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this ); + } + } ); + }, + + after: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this.nextSibling ); + } + } ); + }, + + empty: function() { + var elem, + i = 0; + + for ( ; ( elem = this[ i ] ) != null; i++ ) { + if ( elem.nodeType === 1 ) { + + // Prevent memory leaks + jQuery.cleanData( getAll( elem, false ) ); + + // Remove any remaining nodes + elem.textContent = ""; + } + } + + return this; + }, + + clone: function( dataAndEvents, deepDataAndEvents ) { + dataAndEvents = dataAndEvents == null ? false : dataAndEvents; + deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; + + return this.map( function() { + return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); + } ); + }, + + html: function( value ) { + return access( this, function( value ) { + var elem = this[ 0 ] || {}, + i = 0, + l = this.length; + + if ( value === undefined && elem.nodeType === 1 ) { + return elem.innerHTML; + } + + // See if we can take a shortcut and just use innerHTML + if ( typeof value === "string" && !rnoInnerhtml.test( value ) && + !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { + + value = jQuery.htmlPrefilter( value ); + + try { + for ( ; i < l; i++ ) { + elem = this[ i ] || {}; + + // Remove element nodes and prevent memory leaks + if ( elem.nodeType === 1 ) { + jQuery.cleanData( getAll( elem, false ) ); + elem.innerHTML = value; + } + } + + elem = 0; + + // If using innerHTML throws an exception, use the fallback method + } catch ( e ) {} + } + + if ( elem ) { + this.empty().append( value ); + } + }, null, value, arguments.length ); + }, + + replaceWith: function() { + var ignored = []; + + // Make the changes, replacing each non-ignored context element with the new content + return domManip( this, arguments, function( elem ) { + var parent = this.parentNode; + + if ( jQuery.inArray( this, ignored ) < 0 ) { + jQuery.cleanData( getAll( this ) ); + if ( parent ) { + parent.replaceChild( elem, this ); + } + } + + // Force callback invocation + }, ignored ); + } +} ); + +jQuery.each( { + appendTo: "append", + prependTo: "prepend", + insertBefore: "before", + insertAfter: "after", + replaceAll: "replaceWith" +}, function( name, original ) { + jQuery.fn[ name ] = function( selector ) { + var elems, + ret = [], + insert = jQuery( selector ), + last = insert.length - 1, + i = 0; + + for ( ; i <= last; i++ ) { + elems = i === last ? this : this.clone( true ); + jQuery( insert[ i ] )[ original ]( elems ); + + // Support: Android <=4.0 only, PhantomJS 1 only + // .get() because push.apply(_, arraylike) throws on ancient WebKit + push.apply( ret, elems.get() ); + } + + return this.pushStack( ret ); + }; +} ); +var rmargin = ( /^margin/ ); + +var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); + +var getStyles = function( elem ) { + + // Support: IE <=11 only, Firefox <=30 (#15098, #14150) + // IE throws on elements created in popups + // FF meanwhile throws on frame elements through "defaultView.getComputedStyle" + var view = elem.ownerDocument.defaultView; + + if ( !view || !view.opener ) { + view = window; + } + + return view.getComputedStyle( elem ); + }; + + + +( function() { + + // Executing both pixelPosition & boxSizingReliable tests require only one layout + // so they're executed at the same time to save the second computation. + function computeStyleTests() { + + // This is a singleton, we need to execute it only once + if ( !div ) { + return; + } + + div.style.cssText = + "box-sizing:border-box;" + + "position:relative;display:block;" + + "margin:auto;border:1px;padding:1px;" + + "top:1%;width:50%"; + div.innerHTML = ""; + documentElement.appendChild( container ); + + var divStyle = window.getComputedStyle( div ); + pixelPositionVal = divStyle.top !== "1%"; + + // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 + reliableMarginLeftVal = divStyle.marginLeft === "2px"; + boxSizingReliableVal = divStyle.width === "4px"; + + // Support: Android 4.0 - 4.3 only + // Some styles come back with percentage values, even though they shouldn't + div.style.marginRight = "50%"; + pixelMarginRightVal = divStyle.marginRight === "4px"; + + documentElement.removeChild( container ); + + // Nullify the div so it wouldn't be stored in the memory and + // it will also be a sign that checks already performed + div = null; + } + + var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal, + container = document.createElement( "div" ), + div = document.createElement( "div" ); + + // Finish early in limited (non-browser) environments + if ( !div.style ) { + return; + } + + // Support: IE <=9 - 11 only + // Style of cloned element affects source element cloned (#8908) + div.style.backgroundClip = "content-box"; + div.cloneNode( true ).style.backgroundClip = ""; + support.clearCloneStyle = div.style.backgroundClip === "content-box"; + + container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" + + "padding:0;margin-top:1px;position:absolute"; + container.appendChild( div ); + + jQuery.extend( support, { + pixelPosition: function() { + computeStyleTests(); + return pixelPositionVal; + }, + boxSizingReliable: function() { + computeStyleTests(); + return boxSizingReliableVal; + }, + pixelMarginRight: function() { + computeStyleTests(); + return pixelMarginRightVal; + }, + reliableMarginLeft: function() { + computeStyleTests(); + return reliableMarginLeftVal; + } + } ); +} )(); + + +function curCSS( elem, name, computed ) { + var width, minWidth, maxWidth, ret, + + // Support: Firefox 51+ + // Retrieving style before computed somehow + // fixes an issue with getting wrong values + // on detached elements + style = elem.style; + + computed = computed || getStyles( elem ); + + // getPropertyValue is needed for: + // .css('filter') (IE 9 only, #12537) + // .css('--customProperty) (#3144) + if ( computed ) { + ret = computed.getPropertyValue( name ) || computed[ name ]; + + if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) { + ret = jQuery.style( elem, name ); + } + + // A tribute to the "awesome hack by Dean Edwards" + // Android Browser returns percentage for some values, + // but width seems to be reliably pixels. + // This is against the CSSOM draft spec: + // https://drafts.csswg.org/cssom/#resolved-values + if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) { + + // Remember the original values + width = style.width; + minWidth = style.minWidth; + maxWidth = style.maxWidth; + + // Put in the new values to get a computed value out + style.minWidth = style.maxWidth = style.width = ret; + ret = computed.width; + + // Revert the changed values + style.width = width; + style.minWidth = minWidth; + style.maxWidth = maxWidth; + } + } + + return ret !== undefined ? + + // Support: IE <=9 - 11 only + // IE returns zIndex value as an integer. + ret + "" : + ret; +} + + +function addGetHookIf( conditionFn, hookFn ) { + + // Define the hook, we'll check on the first run if it's really needed. + return { + get: function() { + if ( conditionFn() ) { + + // Hook not needed (or it's not possible to use it due + // to missing dependency), remove it. + delete this.get; + return; + } + + // Hook needed; redefine it so that the support test is not executed again. + return ( this.get = hookFn ).apply( this, arguments ); + } + }; +} + + +var + + // Swappable if display is none or starts with table + // except "table", "table-cell", or "table-caption" + // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display + rdisplayswap = /^(none|table(?!-c[ea]).+)/, + rcustomProp = /^--/, + cssShow = { position: "absolute", visibility: "hidden", display: "block" }, + cssNormalTransform = { + letterSpacing: "0", + fontWeight: "400" + }, + + cssPrefixes = [ "Webkit", "Moz", "ms" ], + emptyStyle = document.createElement( "div" ).style; + +// Return a css property mapped to a potentially vendor prefixed property +function vendorPropName( name ) { + + // Shortcut for names that are not vendor prefixed + if ( name in emptyStyle ) { + return name; + } + + // Check for vendor prefixed names + var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), + i = cssPrefixes.length; + + while ( i-- ) { + name = cssPrefixes[ i ] + capName; + if ( name in emptyStyle ) { + return name; + } + } +} + +// Return a property mapped along what jQuery.cssProps suggests or to +// a vendor prefixed property. +function finalPropName( name ) { + var ret = jQuery.cssProps[ name ]; + if ( !ret ) { + ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name; + } + return ret; +} + +function setPositiveNumber( elem, value, subtract ) { + + // Any relative (+/-) values have already been + // normalized at this point + var matches = rcssNum.exec( value ); + return matches ? + + // Guard against undefined "subtract", e.g., when used as in cssHooks + Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) : + value; +} + +function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) { + var i, + val = 0; + + // If we already have the right measurement, avoid augmentation + if ( extra === ( isBorderBox ? "border" : "content" ) ) { + i = 4; + + // Otherwise initialize for horizontal or vertical properties + } else { + i = name === "width" ? 1 : 0; + } + + for ( ; i < 4; i += 2 ) { + + // Both box models exclude margin, so add it if we want it + if ( extra === "margin" ) { + val += jQuery.css( elem, extra + cssExpand[ i ], true, styles ); + } + + if ( isBorderBox ) { + + // border-box includes padding, so remove it if we want content + if ( extra === "content" ) { + val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + } + + // At this point, extra isn't border nor margin, so remove border + if ( extra !== "margin" ) { + val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + } else { + + // At this point, extra isn't content, so add padding + val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + + // At this point, extra isn't content nor padding, so add border + if ( extra !== "padding" ) { + val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + } + } + + return val; +} + +function getWidthOrHeight( elem, name, extra ) { + + // Start with computed style + var valueIsBorderBox, + styles = getStyles( elem ), + val = curCSS( elem, name, styles ), + isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; + + // Computed unit is not pixels. Stop here and return. + if ( rnumnonpx.test( val ) ) { + return val; + } + + // Check for style in case a browser which returns unreliable values + // for getComputedStyle silently falls back to the reliable elem.style + valueIsBorderBox = isBorderBox && + ( support.boxSizingReliable() || val === elem.style[ name ] ); + + // Fall back to offsetWidth/Height when value is "auto" + // This happens for inline elements with no explicit setting (gh-3571) + if ( val === "auto" ) { + val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ]; + } + + // Normalize "", auto, and prepare for extra + val = parseFloat( val ) || 0; + + // Use the active box-sizing model to add/subtract irrelevant styles + return ( val + + augmentWidthOrHeight( + elem, + name, + extra || ( isBorderBox ? "border" : "content" ), + valueIsBorderBox, + styles + ) + ) + "px"; +} + +jQuery.extend( { + + // Add in style property hooks for overriding the default + // behavior of getting and setting a style property + cssHooks: { + opacity: { + get: function( elem, computed ) { + if ( computed ) { + + // We should always get a number back from opacity + var ret = curCSS( elem, "opacity" ); + return ret === "" ? "1" : ret; + } + } + } + }, + + // Don't automatically add "px" to these possibly-unitless properties + cssNumber: { + "animationIterationCount": true, + "columnCount": true, + "fillOpacity": true, + "flexGrow": true, + "flexShrink": true, + "fontWeight": true, + "lineHeight": true, + "opacity": true, + "order": true, + "orphans": true, + "widows": true, + "zIndex": true, + "zoom": true + }, + + // Add in properties whose names you wish to fix before + // setting or getting the value + cssProps: { + "float": "cssFloat" + }, + + // Get and set the style property on a DOM Node + style: function( elem, name, value, extra ) { + + // Don't set styles on text and comment nodes + if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) { + return; + } + + // Make sure that we're working with the right name + var ret, type, hooks, + origName = jQuery.camelCase( name ), + isCustomProp = rcustomProp.test( name ), + style = elem.style; + + // Make sure that we're working with the right name. We don't + // want to query the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Gets hook for the prefixed version, then unprefixed version + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // Check if we're setting a value + if ( value !== undefined ) { + type = typeof value; + + // Convert "+=" or "-=" to relative numbers (#7345) + if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) { + value = adjustCSS( elem, name, ret ); + + // Fixes bug #9237 + type = "number"; + } + + // Make sure that null and NaN values aren't set (#7116) + if ( value == null || value !== value ) { + return; + } + + // If a number was passed in, add the unit (except for certain CSS properties) + if ( type === "number" ) { + value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); + } + + // background-* props affect original clone's values + if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) { + style[ name ] = "inherit"; + } + + // If a hook was provided, use that value, otherwise just set the specified value + if ( !hooks || !( "set" in hooks ) || + ( value = hooks.set( elem, value, extra ) ) !== undefined ) { + + if ( isCustomProp ) { + style.setProperty( name, value ); + } else { + style[ name ] = value; + } + } + + } else { + + // If a hook was provided get the non-computed value from there + if ( hooks && "get" in hooks && + ( ret = hooks.get( elem, false, extra ) ) !== undefined ) { + + return ret; + } + + // Otherwise just get the value from the style object + return style[ name ]; + } + }, + + css: function( elem, name, extra, styles ) { + var val, num, hooks, + origName = jQuery.camelCase( name ), + isCustomProp = rcustomProp.test( name ); + + // Make sure that we're working with the right name. We don't + // want to modify the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Try prefixed name followed by the unprefixed name + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // If a hook was provided get the computed value from there + if ( hooks && "get" in hooks ) { + val = hooks.get( elem, true, extra ); + } + + // Otherwise, if a way to get the computed value exists, use that + if ( val === undefined ) { + val = curCSS( elem, name, styles ); + } + + // Convert "normal" to computed value + if ( val === "normal" && name in cssNormalTransform ) { + val = cssNormalTransform[ name ]; + } + + // Make numeric if forced or a qualifier was provided and val looks numeric + if ( extra === "" || extra ) { + num = parseFloat( val ); + return extra === true || isFinite( num ) ? num || 0 : val; + } + + return val; + } +} ); + +jQuery.each( [ "height", "width" ], function( i, name ) { + jQuery.cssHooks[ name ] = { + get: function( elem, computed, extra ) { + if ( computed ) { + + // Certain elements can have dimension info if we invisibly show them + // but it must have a current display style that would benefit + return rdisplayswap.test( jQuery.css( elem, "display" ) ) && + + // Support: Safari 8+ + // Table columns in Safari have non-zero offsetWidth & zero + // getBoundingClientRect().width unless display is changed. + // Support: IE <=11 only + // Running getBoundingClientRect on a disconnected node + // in IE throws an error. + ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? + swap( elem, cssShow, function() { + return getWidthOrHeight( elem, name, extra ); + } ) : + getWidthOrHeight( elem, name, extra ); + } + }, + + set: function( elem, value, extra ) { + var matches, + styles = extra && getStyles( elem ), + subtract = extra && augmentWidthOrHeight( + elem, + name, + extra, + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + styles + ); + + // Convert to pixels if value adjustment is needed + if ( subtract && ( matches = rcssNum.exec( value ) ) && + ( matches[ 3 ] || "px" ) !== "px" ) { + + elem.style[ name ] = value; + value = jQuery.css( elem, name ); + } + + return setPositiveNumber( elem, value, subtract ); + } + }; +} ); + +jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft, + function( elem, computed ) { + if ( computed ) { + return ( parseFloat( curCSS( elem, "marginLeft" ) ) || + elem.getBoundingClientRect().left - + swap( elem, { marginLeft: 0 }, function() { + return elem.getBoundingClientRect().left; + } ) + ) + "px"; + } + } +); + +// These hooks are used by animate to expand properties +jQuery.each( { + margin: "", + padding: "", + border: "Width" +}, function( prefix, suffix ) { + jQuery.cssHooks[ prefix + suffix ] = { + expand: function( value ) { + var i = 0, + expanded = {}, + + // Assumes a single number if not a string + parts = typeof value === "string" ? value.split( " " ) : [ value ]; + + for ( ; i < 4; i++ ) { + expanded[ prefix + cssExpand[ i ] + suffix ] = + parts[ i ] || parts[ i - 2 ] || parts[ 0 ]; + } + + return expanded; + } + }; + + if ( !rmargin.test( prefix ) ) { + jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; + } +} ); + +jQuery.fn.extend( { + css: function( name, value ) { + return access( this, function( elem, name, value ) { + var styles, len, + map = {}, + i = 0; + + if ( Array.isArray( name ) ) { + styles = getStyles( elem ); + len = name.length; + + for ( ; i < len; i++ ) { + map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles ); + } + + return map; + } + + return value !== undefined ? + jQuery.style( elem, name, value ) : + jQuery.css( elem, name ); + }, name, value, arguments.length > 1 ); + } +} ); + + +function Tween( elem, options, prop, end, easing ) { + return new Tween.prototype.init( elem, options, prop, end, easing ); +} +jQuery.Tween = Tween; + +Tween.prototype = { + constructor: Tween, + init: function( elem, options, prop, end, easing, unit ) { + this.elem = elem; + this.prop = prop; + this.easing = easing || jQuery.easing._default; + this.options = options; + this.start = this.now = this.cur(); + this.end = end; + this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" ); + }, + cur: function() { + var hooks = Tween.propHooks[ this.prop ]; + + return hooks && hooks.get ? + hooks.get( this ) : + Tween.propHooks._default.get( this ); + }, + run: function( percent ) { + var eased, + hooks = Tween.propHooks[ this.prop ]; + + if ( this.options.duration ) { + this.pos = eased = jQuery.easing[ this.easing ]( + percent, this.options.duration * percent, 0, 1, this.options.duration + ); + } else { + this.pos = eased = percent; + } + this.now = ( this.end - this.start ) * eased + this.start; + + if ( this.options.step ) { + this.options.step.call( this.elem, this.now, this ); + } + + if ( hooks && hooks.set ) { + hooks.set( this ); + } else { + Tween.propHooks._default.set( this ); + } + return this; + } +}; + +Tween.prototype.init.prototype = Tween.prototype; + +Tween.propHooks = { + _default: { + get: function( tween ) { + var result; + + // Use a property on the element directly when it is not a DOM element, + // or when there is no matching style property that exists. + if ( tween.elem.nodeType !== 1 || + tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) { + return tween.elem[ tween.prop ]; + } + + // Passing an empty string as a 3rd parameter to .css will automatically + // attempt a parseFloat and fallback to a string if the parse fails. + // Simple values such as "10px" are parsed to Float; + // complex values such as "rotate(1rad)" are returned as-is. + result = jQuery.css( tween.elem, tween.prop, "" ); + + // Empty strings, null, undefined and "auto" are converted to 0. + return !result || result === "auto" ? 0 : result; + }, + set: function( tween ) { + + // Use step hook for back compat. + // Use cssHook if its there. + // Use .style if available and use plain properties where available. + if ( jQuery.fx.step[ tween.prop ] ) { + jQuery.fx.step[ tween.prop ]( tween ); + } else if ( tween.elem.nodeType === 1 && + ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || + jQuery.cssHooks[ tween.prop ] ) ) { + jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); + } else { + tween.elem[ tween.prop ] = tween.now; + } + } + } +}; + +// Support: IE <=9 only +// Panic based approach to setting things on disconnected nodes +Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = { + set: function( tween ) { + if ( tween.elem.nodeType && tween.elem.parentNode ) { + tween.elem[ tween.prop ] = tween.now; + } + } +}; + +jQuery.easing = { + linear: function( p ) { + return p; + }, + swing: function( p ) { + return 0.5 - Math.cos( p * Math.PI ) / 2; + }, + _default: "swing" +}; + +jQuery.fx = Tween.prototype.init; + +// Back compat <1.8 extension point +jQuery.fx.step = {}; + + + + +var + fxNow, inProgress, + rfxtypes = /^(?:toggle|show|hide)$/, + rrun = /queueHooks$/; + +function schedule() { + if ( inProgress ) { + if ( document.hidden === false && window.requestAnimationFrame ) { + window.requestAnimationFrame( schedule ); + } else { + window.setTimeout( schedule, jQuery.fx.interval ); + } + + jQuery.fx.tick(); + } +} + +// Animations created synchronously will run synchronously +function createFxNow() { + window.setTimeout( function() { + fxNow = undefined; + } ); + return ( fxNow = jQuery.now() ); +} + +// Generate parameters to create a standard animation +function genFx( type, includeWidth ) { + var which, + i = 0, + attrs = { height: type }; + + // If we include width, step value is 1 to do all cssExpand values, + // otherwise step value is 2 to skip over Left and Right + includeWidth = includeWidth ? 1 : 0; + for ( ; i < 4; i += 2 - includeWidth ) { + which = cssExpand[ i ]; + attrs[ "margin" + which ] = attrs[ "padding" + which ] = type; + } + + if ( includeWidth ) { + attrs.opacity = attrs.width = type; + } + + return attrs; +} + +function createTween( value, prop, animation ) { + var tween, + collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ), + index = 0, + length = collection.length; + for ( ; index < length; index++ ) { + if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) { + + // We're done with this property + return tween; + } + } +} + +function defaultPrefilter( elem, props, opts ) { + var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display, + isBox = "width" in props || "height" in props, + anim = this, + orig = {}, + style = elem.style, + hidden = elem.nodeType && isHiddenWithinTree( elem ), + dataShow = dataPriv.get( elem, "fxshow" ); + + // Queue-skipping animations hijack the fx hooks + if ( !opts.queue ) { + hooks = jQuery._queueHooks( elem, "fx" ); + if ( hooks.unqueued == null ) { + hooks.unqueued = 0; + oldfire = hooks.empty.fire; + hooks.empty.fire = function() { + if ( !hooks.unqueued ) { + oldfire(); + } + }; + } + hooks.unqueued++; + + anim.always( function() { + + // Ensure the complete handler is called before this completes + anim.always( function() { + hooks.unqueued--; + if ( !jQuery.queue( elem, "fx" ).length ) { + hooks.empty.fire(); + } + } ); + } ); + } + + // Detect show/hide animations + for ( prop in props ) { + value = props[ prop ]; + if ( rfxtypes.test( value ) ) { + delete props[ prop ]; + toggle = toggle || value === "toggle"; + if ( value === ( hidden ? "hide" : "show" ) ) { + + // Pretend to be hidden if this is a "show" and + // there is still data from a stopped show/hide + if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) { + hidden = true; + + // Ignore all other no-op show/hide data + } else { + continue; + } + } + orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop ); + } + } + + // Bail out if this is a no-op like .hide().hide() + propTween = !jQuery.isEmptyObject( props ); + if ( !propTween && jQuery.isEmptyObject( orig ) ) { + return; + } + + // Restrict "overflow" and "display" styles during box animations + if ( isBox && elem.nodeType === 1 ) { + + // Support: IE <=9 - 11, Edge 12 - 13 + // Record all 3 overflow attributes because IE does not infer the shorthand + // from identically-valued overflowX and overflowY + opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; + + // Identify a display type, preferring old show/hide data over the CSS cascade + restoreDisplay = dataShow && dataShow.display; + if ( restoreDisplay == null ) { + restoreDisplay = dataPriv.get( elem, "display" ); + } + display = jQuery.css( elem, "display" ); + if ( display === "none" ) { + if ( restoreDisplay ) { + display = restoreDisplay; + } else { + + // Get nonempty value(s) by temporarily forcing visibility + showHide( [ elem ], true ); + restoreDisplay = elem.style.display || restoreDisplay; + display = jQuery.css( elem, "display" ); + showHide( [ elem ] ); + } + } + + // Animate inline elements as inline-block + if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) { + if ( jQuery.css( elem, "float" ) === "none" ) { + + // Restore the original display value at the end of pure show/hide animations + if ( !propTween ) { + anim.done( function() { + style.display = restoreDisplay; + } ); + if ( restoreDisplay == null ) { + display = style.display; + restoreDisplay = display === "none" ? "" : display; + } + } + style.display = "inline-block"; + } + } + } + + if ( opts.overflow ) { + style.overflow = "hidden"; + anim.always( function() { + style.overflow = opts.overflow[ 0 ]; + style.overflowX = opts.overflow[ 1 ]; + style.overflowY = opts.overflow[ 2 ]; + } ); + } + + // Implement show/hide animations + propTween = false; + for ( prop in orig ) { + + // General show/hide setup for this element animation + if ( !propTween ) { + if ( dataShow ) { + if ( "hidden" in dataShow ) { + hidden = dataShow.hidden; + } + } else { + dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } ); + } + + // Store hidden/visible for toggle so `.stop().toggle()` "reverses" + if ( toggle ) { + dataShow.hidden = !hidden; + } + + // Show elements before animating them + if ( hidden ) { + showHide( [ elem ], true ); + } + + /* eslint-disable no-loop-func */ + + anim.done( function() { + + /* eslint-enable no-loop-func */ + + // The final step of a "hide" animation is actually hiding the element + if ( !hidden ) { + showHide( [ elem ] ); + } + dataPriv.remove( elem, "fxshow" ); + for ( prop in orig ) { + jQuery.style( elem, prop, orig[ prop ] ); + } + } ); + } + + // Per-property setup + propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim ); + if ( !( prop in dataShow ) ) { + dataShow[ prop ] = propTween.start; + if ( hidden ) { + propTween.end = propTween.start; + propTween.start = 0; + } + } + } +} + +function propFilter( props, specialEasing ) { + var index, name, easing, value, hooks; + + // camelCase, specialEasing and expand cssHook pass + for ( index in props ) { + name = jQuery.camelCase( index ); + easing = specialEasing[ name ]; + value = props[ index ]; + if ( Array.isArray( value ) ) { + easing = value[ 1 ]; + value = props[ index ] = value[ 0 ]; + } + + if ( index !== name ) { + props[ name ] = value; + delete props[ index ]; + } + + hooks = jQuery.cssHooks[ name ]; + if ( hooks && "expand" in hooks ) { + value = hooks.expand( value ); + delete props[ name ]; + + // Not quite $.extend, this won't overwrite existing keys. + // Reusing 'index' because we have the correct "name" + for ( index in value ) { + if ( !( index in props ) ) { + props[ index ] = value[ index ]; + specialEasing[ index ] = easing; + } + } + } else { + specialEasing[ name ] = easing; + } + } +} + +function Animation( elem, properties, options ) { + var result, + stopped, + index = 0, + length = Animation.prefilters.length, + deferred = jQuery.Deferred().always( function() { + + // Don't match elem in the :animated selector + delete tick.elem; + } ), + tick = function() { + if ( stopped ) { + return false; + } + var currentTime = fxNow || createFxNow(), + remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ), + + // Support: Android 2.3 only + // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497) + temp = remaining / animation.duration || 0, + percent = 1 - temp, + index = 0, + length = animation.tweens.length; + + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( percent ); + } + + deferred.notifyWith( elem, [ animation, percent, remaining ] ); + + // If there's more to do, yield + if ( percent < 1 && length ) { + return remaining; + } + + // If this was an empty animation, synthesize a final progress notification + if ( !length ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + } + + // Resolve the animation and report its conclusion + deferred.resolveWith( elem, [ animation ] ); + return false; + }, + animation = deferred.promise( { + elem: elem, + props: jQuery.extend( {}, properties ), + opts: jQuery.extend( true, { + specialEasing: {}, + easing: jQuery.easing._default + }, options ), + originalProperties: properties, + originalOptions: options, + startTime: fxNow || createFxNow(), + duration: options.duration, + tweens: [], + createTween: function( prop, end ) { + var tween = jQuery.Tween( elem, animation.opts, prop, end, + animation.opts.specialEasing[ prop ] || animation.opts.easing ); + animation.tweens.push( tween ); + return tween; + }, + stop: function( gotoEnd ) { + var index = 0, + + // If we are going to the end, we want to run all the tweens + // otherwise we skip this part + length = gotoEnd ? animation.tweens.length : 0; + if ( stopped ) { + return this; + } + stopped = true; + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( 1 ); + } + + // Resolve when we played the last frame; otherwise, reject + if ( gotoEnd ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + deferred.resolveWith( elem, [ animation, gotoEnd ] ); + } else { + deferred.rejectWith( elem, [ animation, gotoEnd ] ); + } + return this; + } + } ), + props = animation.props; + + propFilter( props, animation.opts.specialEasing ); + + for ( ; index < length; index++ ) { + result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); + if ( result ) { + if ( jQuery.isFunction( result.stop ) ) { + jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = + jQuery.proxy( result.stop, result ); + } + return result; + } + } + + jQuery.map( props, createTween, animation ); + + if ( jQuery.isFunction( animation.opts.start ) ) { + animation.opts.start.call( elem, animation ); + } + + // Attach callbacks from options + animation + .progress( animation.opts.progress ) + .done( animation.opts.done, animation.opts.complete ) + .fail( animation.opts.fail ) + .always( animation.opts.always ); + + jQuery.fx.timer( + jQuery.extend( tick, { + elem: elem, + anim: animation, + queue: animation.opts.queue + } ) + ); + + return animation; +} + +jQuery.Animation = jQuery.extend( Animation, { + + tweeners: { + "*": [ function( prop, value ) { + var tween = this.createTween( prop, value ); + adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween ); + return tween; + } ] + }, + + tweener: function( props, callback ) { + if ( jQuery.isFunction( props ) ) { + callback = props; + props = [ "*" ]; + } else { + props = props.match( rnothtmlwhite ); + } + + var prop, + index = 0, + length = props.length; + + for ( ; index < length; index++ ) { + prop = props[ index ]; + Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || []; + Animation.tweeners[ prop ].unshift( callback ); + } + }, + + prefilters: [ defaultPrefilter ], + + prefilter: function( callback, prepend ) { + if ( prepend ) { + Animation.prefilters.unshift( callback ); + } else { + Animation.prefilters.push( callback ); + } + } +} ); + +jQuery.speed = function( speed, easing, fn ) { + var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { + complete: fn || !fn && easing || + jQuery.isFunction( speed ) && speed, + duration: speed, + easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing + }; + + // Go to the end state if fx are off + if ( jQuery.fx.off ) { + opt.duration = 0; + + } else { + if ( typeof opt.duration !== "number" ) { + if ( opt.duration in jQuery.fx.speeds ) { + opt.duration = jQuery.fx.speeds[ opt.duration ]; + + } else { + opt.duration = jQuery.fx.speeds._default; + } + } + } + + // Normalize opt.queue - true/undefined/null -> "fx" + if ( opt.queue == null || opt.queue === true ) { + opt.queue = "fx"; + } + + // Queueing + opt.old = opt.complete; + + opt.complete = function() { + if ( jQuery.isFunction( opt.old ) ) { + opt.old.call( this ); + } + + if ( opt.queue ) { + jQuery.dequeue( this, opt.queue ); + } + }; + + return opt; +}; + +jQuery.fn.extend( { + fadeTo: function( speed, to, easing, callback ) { + + // Show any hidden elements after setting opacity to 0 + return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show() + + // Animate to the value specified + .end().animate( { opacity: to }, speed, easing, callback ); + }, + animate: function( prop, speed, easing, callback ) { + var empty = jQuery.isEmptyObject( prop ), + optall = jQuery.speed( speed, easing, callback ), + doAnimation = function() { + + // Operate on a copy of prop so per-property easing won't be lost + var anim = Animation( this, jQuery.extend( {}, prop ), optall ); + + // Empty animations, or finishing resolves immediately + if ( empty || dataPriv.get( this, "finish" ) ) { + anim.stop( true ); + } + }; + doAnimation.finish = doAnimation; + + return empty || optall.queue === false ? + this.each( doAnimation ) : + this.queue( optall.queue, doAnimation ); + }, + stop: function( type, clearQueue, gotoEnd ) { + var stopQueue = function( hooks ) { + var stop = hooks.stop; + delete hooks.stop; + stop( gotoEnd ); + }; + + if ( typeof type !== "string" ) { + gotoEnd = clearQueue; + clearQueue = type; + type = undefined; + } + if ( clearQueue && type !== false ) { + this.queue( type || "fx", [] ); + } + + return this.each( function() { + var dequeue = true, + index = type != null && type + "queueHooks", + timers = jQuery.timers, + data = dataPriv.get( this ); + + if ( index ) { + if ( data[ index ] && data[ index ].stop ) { + stopQueue( data[ index ] ); + } + } else { + for ( index in data ) { + if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) { + stopQueue( data[ index ] ); + } + } + } + + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && + ( type == null || timers[ index ].queue === type ) ) { + + timers[ index ].anim.stop( gotoEnd ); + dequeue = false; + timers.splice( index, 1 ); + } + } + + // Start the next in the queue if the last step wasn't forced. + // Timers currently will call their complete callbacks, which + // will dequeue but only if they were gotoEnd. + if ( dequeue || !gotoEnd ) { + jQuery.dequeue( this, type ); + } + } ); + }, + finish: function( type ) { + if ( type !== false ) { + type = type || "fx"; + } + return this.each( function() { + var index, + data = dataPriv.get( this ), + queue = data[ type + "queue" ], + hooks = data[ type + "queueHooks" ], + timers = jQuery.timers, + length = queue ? queue.length : 0; + + // Enable finishing flag on private data + data.finish = true; + + // Empty the queue first + jQuery.queue( this, type, [] ); + + if ( hooks && hooks.stop ) { + hooks.stop.call( this, true ); + } + + // Look for any active animations, and finish them + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && timers[ index ].queue === type ) { + timers[ index ].anim.stop( true ); + timers.splice( index, 1 ); + } + } + + // Look for any animations in the old queue and finish them + for ( index = 0; index < length; index++ ) { + if ( queue[ index ] && queue[ index ].finish ) { + queue[ index ].finish.call( this ); + } + } + + // Turn off finishing flag + delete data.finish; + } ); + } +} ); + +jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) { + var cssFn = jQuery.fn[ name ]; + jQuery.fn[ name ] = function( speed, easing, callback ) { + return speed == null || typeof speed === "boolean" ? + cssFn.apply( this, arguments ) : + this.animate( genFx( name, true ), speed, easing, callback ); + }; +} ); + +// Generate shortcuts for custom animations +jQuery.each( { + slideDown: genFx( "show" ), + slideUp: genFx( "hide" ), + slideToggle: genFx( "toggle" ), + fadeIn: { opacity: "show" }, + fadeOut: { opacity: "hide" }, + fadeToggle: { opacity: "toggle" } +}, function( name, props ) { + jQuery.fn[ name ] = function( speed, easing, callback ) { + return this.animate( props, speed, easing, callback ); + }; +} ); + +jQuery.timers = []; +jQuery.fx.tick = function() { + var timer, + i = 0, + timers = jQuery.timers; + + fxNow = jQuery.now(); + + for ( ; i < timers.length; i++ ) { + timer = timers[ i ]; + + // Run the timer and safely remove it when done (allowing for external removal) + if ( !timer() && timers[ i ] === timer ) { + timers.splice( i--, 1 ); + } + } + + if ( !timers.length ) { + jQuery.fx.stop(); + } + fxNow = undefined; +}; + +jQuery.fx.timer = function( timer ) { + jQuery.timers.push( timer ); + jQuery.fx.start(); +}; + +jQuery.fx.interval = 13; +jQuery.fx.start = function() { + if ( inProgress ) { + return; + } + + inProgress = true; + schedule(); +}; + +jQuery.fx.stop = function() { + inProgress = null; +}; + +jQuery.fx.speeds = { + slow: 600, + fast: 200, + + // Default speed + _default: 400 +}; + + +// Based off of the plugin by Clint Helfers, with permission. +// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/ +jQuery.fn.delay = function( time, type ) { + time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time; + type = type || "fx"; + + return this.queue( type, function( next, hooks ) { + var timeout = window.setTimeout( next, time ); + hooks.stop = function() { + window.clearTimeout( timeout ); + }; + } ); +}; + + +( function() { + var input = document.createElement( "input" ), + select = document.createElement( "select" ), + opt = select.appendChild( document.createElement( "option" ) ); + + input.type = "checkbox"; + + // Support: Android <=4.3 only + // Default value for a checkbox should be "on" + support.checkOn = input.value !== ""; + + // Support: IE <=11 only + // Must access selectedIndex to make default options select + support.optSelected = opt.selected; + + // Support: IE <=11 only + // An input loses its value after becoming a radio + input = document.createElement( "input" ); + input.value = "t"; + input.type = "radio"; + support.radioValue = input.value === "t"; +} )(); + + +var boolHook, + attrHandle = jQuery.expr.attrHandle; + +jQuery.fn.extend( { + attr: function( name, value ) { + return access( this, jQuery.attr, name, value, arguments.length > 1 ); + }, + + removeAttr: function( name ) { + return this.each( function() { + jQuery.removeAttr( this, name ); + } ); + } +} ); + +jQuery.extend( { + attr: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set attributes on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + // Fallback to prop when attributes are not supported + if ( typeof elem.getAttribute === "undefined" ) { + return jQuery.prop( elem, name, value ); + } + + // Attribute hooks are determined by the lowercase version + // Grab necessary hook if one is defined + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + hooks = jQuery.attrHooks[ name.toLowerCase() ] || + ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined ); + } + + if ( value !== undefined ) { + if ( value === null ) { + jQuery.removeAttr( elem, name ); + return; + } + + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + elem.setAttribute( name, value + "" ); + return value; + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + ret = jQuery.find.attr( elem, name ); + + // Non-existent attributes return null, we normalize to undefined + return ret == null ? undefined : ret; + }, + + attrHooks: { + type: { + set: function( elem, value ) { + if ( !support.radioValue && value === "radio" && + nodeName( elem, "input" ) ) { + var val = elem.value; + elem.setAttribute( "type", value ); + if ( val ) { + elem.value = val; + } + return value; + } + } + } + }, + + removeAttr: function( elem, value ) { + var name, + i = 0, + + // Attribute names can contain non-HTML whitespace characters + // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2 + attrNames = value && value.match( rnothtmlwhite ); + + if ( attrNames && elem.nodeType === 1 ) { + while ( ( name = attrNames[ i++ ] ) ) { + elem.removeAttribute( name ); + } + } + } +} ); + +// Hooks for boolean attributes +boolHook = { + set: function( elem, value, name ) { + if ( value === false ) { + + // Remove boolean attributes when set to false + jQuery.removeAttr( elem, name ); + } else { + elem.setAttribute( name, name ); + } + return name; + } +}; + +jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) { + var getter = attrHandle[ name ] || jQuery.find.attr; + + attrHandle[ name ] = function( elem, name, isXML ) { + var ret, handle, + lowercaseName = name.toLowerCase(); + + if ( !isXML ) { + + // Avoid an infinite loop by temporarily removing this function from the getter + handle = attrHandle[ lowercaseName ]; + attrHandle[ lowercaseName ] = ret; + ret = getter( elem, name, isXML ) != null ? + lowercaseName : + null; + attrHandle[ lowercaseName ] = handle; + } + return ret; + }; +} ); + + + + +var rfocusable = /^(?:input|select|textarea|button)$/i, + rclickable = /^(?:a|area)$/i; + +jQuery.fn.extend( { + prop: function( name, value ) { + return access( this, jQuery.prop, name, value, arguments.length > 1 ); + }, + + removeProp: function( name ) { + return this.each( function() { + delete this[ jQuery.propFix[ name ] || name ]; + } ); + } +} ); + +jQuery.extend( { + prop: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set properties on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + + // Fix name and attach hooks + name = jQuery.propFix[ name ] || name; + hooks = jQuery.propHooks[ name ]; + } + + if ( value !== undefined ) { + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + return ( elem[ name ] = value ); + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + return elem[ name ]; + }, + + propHooks: { + tabIndex: { + get: function( elem ) { + + // Support: IE <=9 - 11 only + // elem.tabIndex doesn't always return the + // correct value when it hasn't been explicitly set + // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/ + // Use proper attribute retrieval(#12072) + var tabindex = jQuery.find.attr( elem, "tabindex" ); + + if ( tabindex ) { + return parseInt( tabindex, 10 ); + } + + if ( + rfocusable.test( elem.nodeName ) || + rclickable.test( elem.nodeName ) && + elem.href + ) { + return 0; + } + + return -1; + } + } + }, + + propFix: { + "for": "htmlFor", + "class": "className" + } +} ); + +// Support: IE <=11 only +// Accessing the selectedIndex property +// forces the browser to respect setting selected +// on the option +// The getter ensures a default option is selected +// when in an optgroup +// eslint rule "no-unused-expressions" is disabled for this code +// since it considers such accessions noop +if ( !support.optSelected ) { + jQuery.propHooks.selected = { + get: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent && parent.parentNode ) { + parent.parentNode.selectedIndex; + } + return null; + }, + set: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent ) { + parent.selectedIndex; + + if ( parent.parentNode ) { + parent.parentNode.selectedIndex; + } + } + } + }; +} + +jQuery.each( [ + "tabIndex", + "readOnly", + "maxLength", + "cellSpacing", + "cellPadding", + "rowSpan", + "colSpan", + "useMap", + "frameBorder", + "contentEditable" +], function() { + jQuery.propFix[ this.toLowerCase() ] = this; +} ); + + + + + // Strip and collapse whitespace according to HTML spec + // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace + function stripAndCollapse( value ) { + var tokens = value.match( rnothtmlwhite ) || []; + return tokens.join( " " ); + } + + +function getClass( elem ) { + return elem.getAttribute && elem.getAttribute( "class" ) || ""; +} + +jQuery.fn.extend( { + addClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( jQuery.isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + if ( typeof value === "string" && value ) { + classes = value.match( rnothtmlwhite ) || []; + + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + if ( cur.indexOf( " " + clazz + " " ) < 0 ) { + cur += clazz + " "; + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + removeClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( jQuery.isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + if ( !arguments.length ) { + return this.attr( "class", "" ); + } + + if ( typeof value === "string" && value ) { + classes = value.match( rnothtmlwhite ) || []; + + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + + // This expression is here for better compressibility (see addClass) + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + + // Remove *all* instances + while ( cur.indexOf( " " + clazz + " " ) > -1 ) { + cur = cur.replace( " " + clazz + " ", " " ); + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + toggleClass: function( value, stateVal ) { + var type = typeof value; + + if ( typeof stateVal === "boolean" && type === "string" ) { + return stateVal ? this.addClass( value ) : this.removeClass( value ); + } + + if ( jQuery.isFunction( value ) ) { + return this.each( function( i ) { + jQuery( this ).toggleClass( + value.call( this, i, getClass( this ), stateVal ), + stateVal + ); + } ); + } + + return this.each( function() { + var className, i, self, classNames; + + if ( type === "string" ) { + + // Toggle individual class names + i = 0; + self = jQuery( this ); + classNames = value.match( rnothtmlwhite ) || []; + + while ( ( className = classNames[ i++ ] ) ) { + + // Check each className given, space separated list + if ( self.hasClass( className ) ) { + self.removeClass( className ); + } else { + self.addClass( className ); + } + } + + // Toggle whole class name + } else if ( value === undefined || type === "boolean" ) { + className = getClass( this ); + if ( className ) { + + // Store className if set + dataPriv.set( this, "__className__", className ); + } + + // If the element has a class name or if we're passed `false`, + // then remove the whole classname (if there was one, the above saved it). + // Otherwise bring back whatever was previously saved (if anything), + // falling back to the empty string if nothing was stored. + if ( this.setAttribute ) { + this.setAttribute( "class", + className || value === false ? + "" : + dataPriv.get( this, "__className__" ) || "" + ); + } + } + } ); + }, + + hasClass: function( selector ) { + var className, elem, + i = 0; + + className = " " + selector + " "; + while ( ( elem = this[ i++ ] ) ) { + if ( elem.nodeType === 1 && + ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) { + return true; + } + } + + return false; + } +} ); + + + + +var rreturn = /\r/g; + +jQuery.fn.extend( { + val: function( value ) { + var hooks, ret, isFunction, + elem = this[ 0 ]; + + if ( !arguments.length ) { + if ( elem ) { + hooks = jQuery.valHooks[ elem.type ] || + jQuery.valHooks[ elem.nodeName.toLowerCase() ]; + + if ( hooks && + "get" in hooks && + ( ret = hooks.get( elem, "value" ) ) !== undefined + ) { + return ret; + } + + ret = elem.value; + + // Handle most common string cases + if ( typeof ret === "string" ) { + return ret.replace( rreturn, "" ); + } + + // Handle cases where value is null/undef or number + return ret == null ? "" : ret; + } + + return; + } + + isFunction = jQuery.isFunction( value ); + + return this.each( function( i ) { + var val; + + if ( this.nodeType !== 1 ) { + return; + } + + if ( isFunction ) { + val = value.call( this, i, jQuery( this ).val() ); + } else { + val = value; + } + + // Treat null/undefined as ""; convert numbers to string + if ( val == null ) { + val = ""; + + } else if ( typeof val === "number" ) { + val += ""; + + } else if ( Array.isArray( val ) ) { + val = jQuery.map( val, function( value ) { + return value == null ? "" : value + ""; + } ); + } + + hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ]; + + // If set returns undefined, fall back to normal setting + if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) { + this.value = val; + } + } ); + } +} ); + +jQuery.extend( { + valHooks: { + option: { + get: function( elem ) { + + var val = jQuery.find.attr( elem, "value" ); + return val != null ? + val : + + // Support: IE <=10 - 11 only + // option.text throws exceptions (#14686, #14858) + // Strip and collapse whitespace + // https://html.spec.whatwg.org/#strip-and-collapse-whitespace + stripAndCollapse( jQuery.text( elem ) ); + } + }, + select: { + get: function( elem ) { + var value, option, i, + options = elem.options, + index = elem.selectedIndex, + one = elem.type === "select-one", + values = one ? null : [], + max = one ? index + 1 : options.length; + + if ( index < 0 ) { + i = max; + + } else { + i = one ? index : 0; + } + + // Loop through all the selected options + for ( ; i < max; i++ ) { + option = options[ i ]; + + // Support: IE <=9 only + // IE8-9 doesn't update selected after form reset (#2551) + if ( ( option.selected || i === index ) && + + // Don't return options that are disabled or in a disabled optgroup + !option.disabled && + ( !option.parentNode.disabled || + !nodeName( option.parentNode, "optgroup" ) ) ) { + + // Get the specific value for the option + value = jQuery( option ).val(); + + // We don't need an array for one selects + if ( one ) { + return value; + } + + // Multi-Selects return an array + values.push( value ); + } + } + + return values; + }, + + set: function( elem, value ) { + var optionSet, option, + options = elem.options, + values = jQuery.makeArray( value ), + i = options.length; + + while ( i-- ) { + option = options[ i ]; + + /* eslint-disable no-cond-assign */ + + if ( option.selected = + jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 + ) { + optionSet = true; + } + + /* eslint-enable no-cond-assign */ + } + + // Force browsers to behave consistently when non-matching value is set + if ( !optionSet ) { + elem.selectedIndex = -1; + } + return values; + } + } + } +} ); + +// Radios and checkboxes getter/setter +jQuery.each( [ "radio", "checkbox" ], function() { + jQuery.valHooks[ this ] = { + set: function( elem, value ) { + if ( Array.isArray( value ) ) { + return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 ); + } + } + }; + if ( !support.checkOn ) { + jQuery.valHooks[ this ].get = function( elem ) { + return elem.getAttribute( "value" ) === null ? "on" : elem.value; + }; + } +} ); + + + + +// Return jQuery for attributes-only inclusion + + +var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/; + +jQuery.extend( jQuery.event, { + + trigger: function( event, data, elem, onlyHandlers ) { + + var i, cur, tmp, bubbleType, ontype, handle, special, + eventPath = [ elem || document ], + type = hasOwn.call( event, "type" ) ? event.type : event, + namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; + + cur = tmp = elem = elem || document; + + // Don't do events on text and comment nodes + if ( elem.nodeType === 3 || elem.nodeType === 8 ) { + return; + } + + // focus/blur morphs to focusin/out; ensure we're not firing them right now + if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { + return; + } + + if ( type.indexOf( "." ) > -1 ) { + + // Namespaced trigger; create a regexp to match event type in handle() + namespaces = type.split( "." ); + type = namespaces.shift(); + namespaces.sort(); + } + ontype = type.indexOf( ":" ) < 0 && "on" + type; + + // Caller can pass in a jQuery.Event object, Object, or just an event type string + event = event[ jQuery.expando ] ? + event : + new jQuery.Event( type, typeof event === "object" && event ); + + // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) + event.isTrigger = onlyHandlers ? 2 : 3; + event.namespace = namespaces.join( "." ); + event.rnamespace = event.namespace ? + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) : + null; + + // Clean up the event in case it is being reused + event.result = undefined; + if ( !event.target ) { + event.target = elem; + } + + // Clone any incoming data and prepend the event, creating the handler arg list + data = data == null ? + [ event ] : + jQuery.makeArray( data, [ event ] ); + + // Allow special events to draw outside the lines + special = jQuery.event.special[ type ] || {}; + if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { + return; + } + + // Determine event propagation path in advance, per W3C events spec (#9951) + // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) + if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) { + + bubbleType = special.delegateType || type; + if ( !rfocusMorph.test( bubbleType + type ) ) { + cur = cur.parentNode; + } + for ( ; cur; cur = cur.parentNode ) { + eventPath.push( cur ); + tmp = cur; + } + + // Only add window if we got to document (e.g., not plain obj or detached DOM) + if ( tmp === ( elem.ownerDocument || document ) ) { + eventPath.push( tmp.defaultView || tmp.parentWindow || window ); + } + } + + // Fire handlers on the event path + i = 0; + while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { + + event.type = i > 1 ? + bubbleType : + special.bindType || type; + + // jQuery handler + handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] && + dataPriv.get( cur, "handle" ); + if ( handle ) { + handle.apply( cur, data ); + } + + // Native handler + handle = ontype && cur[ ontype ]; + if ( handle && handle.apply && acceptData( cur ) ) { + event.result = handle.apply( cur, data ); + if ( event.result === false ) { + event.preventDefault(); + } + } + } + event.type = type; + + // If nobody prevented the default action, do it now + if ( !onlyHandlers && !event.isDefaultPrevented() ) { + + if ( ( !special._default || + special._default.apply( eventPath.pop(), data ) === false ) && + acceptData( elem ) ) { + + // Call a native DOM method on the target with the same name as the event. + // Don't do default actions on window, that's where global variables be (#6170) + if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) { + + // Don't re-trigger an onFOO event when we call its FOO() method + tmp = elem[ ontype ]; + + if ( tmp ) { + elem[ ontype ] = null; + } + + // Prevent re-triggering of the same event, since we already bubbled it above + jQuery.event.triggered = type; + elem[ type ](); + jQuery.event.triggered = undefined; + + if ( tmp ) { + elem[ ontype ] = tmp; + } + } + } + } + + return event.result; + }, + + // Piggyback on a donor event to simulate a different one + // Used only for `focus(in | out)` events + simulate: function( type, elem, event ) { + var e = jQuery.extend( + new jQuery.Event(), + event, + { + type: type, + isSimulated: true + } + ); + + jQuery.event.trigger( e, null, elem ); + } + +} ); + +jQuery.fn.extend( { + + trigger: function( type, data ) { + return this.each( function() { + jQuery.event.trigger( type, data, this ); + } ); + }, + triggerHandler: function( type, data ) { + var elem = this[ 0 ]; + if ( elem ) { + return jQuery.event.trigger( type, data, elem, true ); + } + } +} ); + + +jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " + + "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " + + "change select submit keydown keypress keyup contextmenu" ).split( " " ), + function( i, name ) { + + // Handle event binding + jQuery.fn[ name ] = function( data, fn ) { + return arguments.length > 0 ? + this.on( name, null, data, fn ) : + this.trigger( name ); + }; +} ); + +jQuery.fn.extend( { + hover: function( fnOver, fnOut ) { + return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver ); + } +} ); + + + + +support.focusin = "onfocusin" in window; + + +// Support: Firefox <=44 +// Firefox doesn't have focus(in | out) events +// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 +// +// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1 +// focus(in | out) events fire after focus & blur events, +// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order +// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857 +if ( !support.focusin ) { + jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) { + + // Attach a single capturing handler on the document while someone wants focusin/focusout + var handler = function( event ) { + jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) ); + }; + + jQuery.event.special[ fix ] = { + setup: function() { + var doc = this.ownerDocument || this, + attaches = dataPriv.access( doc, fix ); + + if ( !attaches ) { + doc.addEventListener( orig, handler, true ); + } + dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); + }, + teardown: function() { + var doc = this.ownerDocument || this, + attaches = dataPriv.access( doc, fix ) - 1; + + if ( !attaches ) { + doc.removeEventListener( orig, handler, true ); + dataPriv.remove( doc, fix ); + + } else { + dataPriv.access( doc, fix, attaches ); + } + } + }; + } ); +} +var location = window.location; + +var nonce = jQuery.now(); + +var rquery = ( /\?/ ); + + + +// Cross-browser xml parsing +jQuery.parseXML = function( data ) { + var xml; + if ( !data || typeof data !== "string" ) { + return null; + } + + // Support: IE 9 - 11 only + // IE throws on parseFromString with invalid input. + try { + xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" ); + } catch ( e ) { + xml = undefined; + } + + if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) { + jQuery.error( "Invalid XML: " + data ); + } + return xml; +}; + + +var + rbracket = /\[\]$/, + rCRLF = /\r?\n/g, + rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i, + rsubmittable = /^(?:input|select|textarea|keygen)/i; + +function buildParams( prefix, obj, traditional, add ) { + var name; + + if ( Array.isArray( obj ) ) { + + // Serialize array item. + jQuery.each( obj, function( i, v ) { + if ( traditional || rbracket.test( prefix ) ) { + + // Treat each array item as a scalar. + add( prefix, v ); + + } else { + + // Item is non-scalar (array or object), encode its numeric index. + buildParams( + prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]", + v, + traditional, + add + ); + } + } ); + + } else if ( !traditional && jQuery.type( obj ) === "object" ) { + + // Serialize object item. + for ( name in obj ) { + buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add ); + } + + } else { + + // Serialize scalar item. + add( prefix, obj ); + } +} + +// Serialize an array of form elements or a set of +// key/values into a query string +jQuery.param = function( a, traditional ) { + var prefix, + s = [], + add = function( key, valueOrFunction ) { + + // If value is a function, invoke it and use its return value + var value = jQuery.isFunction( valueOrFunction ) ? + valueOrFunction() : + valueOrFunction; + + s[ s.length ] = encodeURIComponent( key ) + "=" + + encodeURIComponent( value == null ? "" : value ); + }; + + // If an array was passed in, assume that it is an array of form elements. + if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { + + // Serialize the form elements + jQuery.each( a, function() { + add( this.name, this.value ); + } ); + + } else { + + // If traditional, encode the "old" way (the way 1.3.2 or older + // did it), otherwise encode params recursively. + for ( prefix in a ) { + buildParams( prefix, a[ prefix ], traditional, add ); + } + } + + // Return the resulting serialization + return s.join( "&" ); +}; + +jQuery.fn.extend( { + serialize: function() { + return jQuery.param( this.serializeArray() ); + }, + serializeArray: function() { + return this.map( function() { + + // Can add propHook for "elements" to filter or add form elements + var elements = jQuery.prop( this, "elements" ); + return elements ? jQuery.makeArray( elements ) : this; + } ) + .filter( function() { + var type = this.type; + + // Use .is( ":disabled" ) so that fieldset[disabled] works + return this.name && !jQuery( this ).is( ":disabled" ) && + rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && + ( this.checked || !rcheckableType.test( type ) ); + } ) + .map( function( i, elem ) { + var val = jQuery( this ).val(); + + if ( val == null ) { + return null; + } + + if ( Array.isArray( val ) ) { + return jQuery.map( val, function( val ) { + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ); + } + + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ).get(); + } +} ); + + +var + r20 = /%20/g, + rhash = /#.*$/, + rantiCache = /([?&])_=[^&]*/, + rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg, + + // #7653, #8125, #8152: local protocol detection + rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/, + rnoContent = /^(?:GET|HEAD)$/, + rprotocol = /^\/\//, + + /* Prefilters + * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example) + * 2) These are called: + * - BEFORE asking for a transport + * - AFTER param serialization (s.data is a string if s.processData is true) + * 3) key is the dataType + * 4) the catchall symbol "*" can be used + * 5) execution will start with transport dataType and THEN continue down to "*" if needed + */ + prefilters = {}, + + /* Transports bindings + * 1) key is the dataType + * 2) the catchall symbol "*" can be used + * 3) selection will start with transport dataType and THEN go to "*" if needed + */ + transports = {}, + + // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression + allTypes = "*/".concat( "*" ), + + // Anchor tag for parsing the document origin + originAnchor = document.createElement( "a" ); + originAnchor.href = location.href; + +// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport +function addToPrefiltersOrTransports( structure ) { + + // dataTypeExpression is optional and defaults to "*" + return function( dataTypeExpression, func ) { + + if ( typeof dataTypeExpression !== "string" ) { + func = dataTypeExpression; + dataTypeExpression = "*"; + } + + var dataType, + i = 0, + dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; + + if ( jQuery.isFunction( func ) ) { + + // For each dataType in the dataTypeExpression + while ( ( dataType = dataTypes[ i++ ] ) ) { + + // Prepend if requested + if ( dataType[ 0 ] === "+" ) { + dataType = dataType.slice( 1 ) || "*"; + ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func ); + + // Otherwise append + } else { + ( structure[ dataType ] = structure[ dataType ] || [] ).push( func ); + } + } + } + }; +} + +// Base inspection function for prefilters and transports +function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) { + + var inspected = {}, + seekingTransport = ( structure === transports ); + + function inspect( dataType ) { + var selected; + inspected[ dataType ] = true; + jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) { + var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR ); + if ( typeof dataTypeOrTransport === "string" && + !seekingTransport && !inspected[ dataTypeOrTransport ] ) { + + options.dataTypes.unshift( dataTypeOrTransport ); + inspect( dataTypeOrTransport ); + return false; + } else if ( seekingTransport ) { + return !( selected = dataTypeOrTransport ); + } + } ); + return selected; + } + + return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" ); +} + +// A special extend for ajax options +// that takes "flat" options (not to be deep extended) +// Fixes #9887 +function ajaxExtend( target, src ) { + var key, deep, + flatOptions = jQuery.ajaxSettings.flatOptions || {}; + + for ( key in src ) { + if ( src[ key ] !== undefined ) { + ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; + } + } + if ( deep ) { + jQuery.extend( true, target, deep ); + } + + return target; +} + +/* Handles responses to an ajax request: + * - finds the right dataType (mediates between content-type and expected dataType) + * - returns the corresponding response + */ +function ajaxHandleResponses( s, jqXHR, responses ) { + + var ct, type, finalDataType, firstDataType, + contents = s.contents, + dataTypes = s.dataTypes; + + // Remove auto dataType and get content-type in the process + while ( dataTypes[ 0 ] === "*" ) { + dataTypes.shift(); + if ( ct === undefined ) { + ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" ); + } + } + + // Check if we're dealing with a known content-type + if ( ct ) { + for ( type in contents ) { + if ( contents[ type ] && contents[ type ].test( ct ) ) { + dataTypes.unshift( type ); + break; + } + } + } + + // Check to see if we have a response for the expected dataType + if ( dataTypes[ 0 ] in responses ) { + finalDataType = dataTypes[ 0 ]; + } else { + + // Try convertible dataTypes + for ( type in responses ) { + if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) { + finalDataType = type; + break; + } + if ( !firstDataType ) { + firstDataType = type; + } + } + + // Or just use first one + finalDataType = finalDataType || firstDataType; + } + + // If we found a dataType + // We add the dataType to the list if needed + // and return the corresponding response + if ( finalDataType ) { + if ( finalDataType !== dataTypes[ 0 ] ) { + dataTypes.unshift( finalDataType ); + } + return responses[ finalDataType ]; + } +} + +/* Chain conversions given the request and the original response + * Also sets the responseXXX fields on the jqXHR instance + */ +function ajaxConvert( s, response, jqXHR, isSuccess ) { + var conv2, current, conv, tmp, prev, + converters = {}, + + // Work with a copy of dataTypes in case we need to modify it for conversion + dataTypes = s.dataTypes.slice(); + + // Create converters map with lowercased keys + if ( dataTypes[ 1 ] ) { + for ( conv in s.converters ) { + converters[ conv.toLowerCase() ] = s.converters[ conv ]; + } + } + + current = dataTypes.shift(); + + // Convert to each sequential dataType + while ( current ) { + + if ( s.responseFields[ current ] ) { + jqXHR[ s.responseFields[ current ] ] = response; + } + + // Apply the dataFilter if provided + if ( !prev && isSuccess && s.dataFilter ) { + response = s.dataFilter( response, s.dataType ); + } + + prev = current; + current = dataTypes.shift(); + + if ( current ) { + + // There's only work to do if current dataType is non-auto + if ( current === "*" ) { + + current = prev; + + // Convert response if prev dataType is non-auto and differs from current + } else if ( prev !== "*" && prev !== current ) { + + // Seek a direct converter + conv = converters[ prev + " " + current ] || converters[ "* " + current ]; + + // If none found, seek a pair + if ( !conv ) { + for ( conv2 in converters ) { + + // If conv2 outputs current + tmp = conv2.split( " " ); + if ( tmp[ 1 ] === current ) { + + // If prev can be converted to accepted input + conv = converters[ prev + " " + tmp[ 0 ] ] || + converters[ "* " + tmp[ 0 ] ]; + if ( conv ) { + + // Condense equivalence converters + if ( conv === true ) { + conv = converters[ conv2 ]; + + // Otherwise, insert the intermediate dataType + } else if ( converters[ conv2 ] !== true ) { + current = tmp[ 0 ]; + dataTypes.unshift( tmp[ 1 ] ); + } + break; + } + } + } + } + + // Apply converter (if not an equivalence) + if ( conv !== true ) { + + // Unless errors are allowed to bubble, catch and return them + if ( conv && s.throws ) { + response = conv( response ); + } else { + try { + response = conv( response ); + } catch ( e ) { + return { + state: "parsererror", + error: conv ? e : "No conversion from " + prev + " to " + current + }; + } + } + } + } + } + } + + return { state: "success", data: response }; +} + +jQuery.extend( { + + // Counter for holding the number of active queries + active: 0, + + // Last-Modified header cache for next request + lastModified: {}, + etag: {}, + + ajaxSettings: { + url: location.href, + type: "GET", + isLocal: rlocalProtocol.test( location.protocol ), + global: true, + processData: true, + async: true, + contentType: "application/x-www-form-urlencoded; charset=UTF-8", + + /* + timeout: 0, + data: null, + dataType: null, + username: null, + password: null, + cache: null, + throws: false, + traditional: false, + headers: {}, + */ + + accepts: { + "*": allTypes, + text: "text/plain", + html: "text/html", + xml: "application/xml, text/xml", + json: "application/json, text/javascript" + }, + + contents: { + xml: /\bxml\b/, + html: /\bhtml/, + json: /\bjson\b/ + }, + + responseFields: { + xml: "responseXML", + text: "responseText", + json: "responseJSON" + }, + + // Data converters + // Keys separate source (or catchall "*") and destination types with a single space + converters: { + + // Convert anything to text + "* text": String, + + // Text to html (true = no transformation) + "text html": true, + + // Evaluate text as a json expression + "text json": JSON.parse, + + // Parse text as xml + "text xml": jQuery.parseXML + }, + + // For options that shouldn't be deep extended: + // you can add your own custom options here if + // and when you create one that shouldn't be + // deep extended (see ajaxExtend) + flatOptions: { + url: true, + context: true + } + }, + + // Creates a full fledged settings object into target + // with both ajaxSettings and settings fields. + // If target is omitted, writes into ajaxSettings. + ajaxSetup: function( target, settings ) { + return settings ? + + // Building a settings object + ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) : + + // Extending ajaxSettings + ajaxExtend( jQuery.ajaxSettings, target ); + }, + + ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), + ajaxTransport: addToPrefiltersOrTransports( transports ), + + // Main method + ajax: function( url, options ) { + + // If url is an object, simulate pre-1.5 signature + if ( typeof url === "object" ) { + options = url; + url = undefined; + } + + // Force options to be an object + options = options || {}; + + var transport, + + // URL without anti-cache param + cacheURL, + + // Response headers + responseHeadersString, + responseHeaders, + + // timeout handle + timeoutTimer, + + // Url cleanup var + urlAnchor, + + // Request state (becomes false upon send and true upon completion) + completed, + + // To know if global events are to be dispatched + fireGlobals, + + // Loop variable + i, + + // uncached part of the url + uncached, + + // Create the final options object + s = jQuery.ajaxSetup( {}, options ), + + // Callbacks context + callbackContext = s.context || s, + + // Context for global events is callbackContext if it is a DOM node or jQuery collection + globalEventContext = s.context && + ( callbackContext.nodeType || callbackContext.jquery ) ? + jQuery( callbackContext ) : + jQuery.event, + + // Deferreds + deferred = jQuery.Deferred(), + completeDeferred = jQuery.Callbacks( "once memory" ), + + // Status-dependent callbacks + statusCode = s.statusCode || {}, + + // Headers (they are sent all at once) + requestHeaders = {}, + requestHeadersNames = {}, + + // Default abort message + strAbort = "canceled", + + // Fake xhr + jqXHR = { + readyState: 0, + + // Builds headers hashtable if needed + getResponseHeader: function( key ) { + var match; + if ( completed ) { + if ( !responseHeaders ) { + responseHeaders = {}; + while ( ( match = rheaders.exec( responseHeadersString ) ) ) { + responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ]; + } + } + match = responseHeaders[ key.toLowerCase() ]; + } + return match == null ? null : match; + }, + + // Raw string + getAllResponseHeaders: function() { + return completed ? responseHeadersString : null; + }, + + // Caches the header + setRequestHeader: function( name, value ) { + if ( completed == null ) { + name = requestHeadersNames[ name.toLowerCase() ] = + requestHeadersNames[ name.toLowerCase() ] || name; + requestHeaders[ name ] = value; + } + return this; + }, + + // Overrides response content-type header + overrideMimeType: function( type ) { + if ( completed == null ) { + s.mimeType = type; + } + return this; + }, + + // Status-dependent callbacks + statusCode: function( map ) { + var code; + if ( map ) { + if ( completed ) { + + // Execute the appropriate callbacks + jqXHR.always( map[ jqXHR.status ] ); + } else { + + // Lazy-add the new callbacks in a way that preserves old ones + for ( code in map ) { + statusCode[ code ] = [ statusCode[ code ], map[ code ] ]; + } + } + } + return this; + }, + + // Cancel the request + abort: function( statusText ) { + var finalText = statusText || strAbort; + if ( transport ) { + transport.abort( finalText ); + } + done( 0, finalText ); + return this; + } + }; + + // Attach deferreds + deferred.promise( jqXHR ); + + // Add protocol if not provided (prefilters might expect it) + // Handle falsy url in the settings object (#10093: consistency with old signature) + // We also use the url parameter if available + s.url = ( ( url || s.url || location.href ) + "" ) + .replace( rprotocol, location.protocol + "//" ); + + // Alias method option to type as per ticket #12004 + s.type = options.method || options.type || s.method || s.type; + + // Extract dataTypes list + s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ]; + + // A cross-domain request is in order when the origin doesn't match the current origin. + if ( s.crossDomain == null ) { + urlAnchor = document.createElement( "a" ); + + // Support: IE <=8 - 11, Edge 12 - 13 + // IE throws exception on accessing the href property if url is malformed, + // e.g. http://example.com:80x/ + try { + urlAnchor.href = s.url; + + // Support: IE <=8 - 11 only + // Anchor's host property isn't correctly set when s.url is relative + urlAnchor.href = urlAnchor.href; + s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== + urlAnchor.protocol + "//" + urlAnchor.host; + } catch ( e ) { + + // If there is an error parsing the URL, assume it is crossDomain, + // it can be rejected by the transport if it is invalid + s.crossDomain = true; + } + } + + // Convert data if not already a string + if ( s.data && s.processData && typeof s.data !== "string" ) { + s.data = jQuery.param( s.data, s.traditional ); + } + + // Apply prefilters + inspectPrefiltersOrTransports( prefilters, s, options, jqXHR ); + + // If request was aborted inside a prefilter, stop there + if ( completed ) { + return jqXHR; + } + + // We can fire global events as of now if asked to + // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118) + fireGlobals = jQuery.event && s.global; + + // Watch for a new set of requests + if ( fireGlobals && jQuery.active++ === 0 ) { + jQuery.event.trigger( "ajaxStart" ); + } + + // Uppercase the type + s.type = s.type.toUpperCase(); + + // Determine if request has content + s.hasContent = !rnoContent.test( s.type ); + + // Save the URL in case we're toying with the If-Modified-Since + // and/or If-None-Match header later on + // Remove hash to simplify url manipulation + cacheURL = s.url.replace( rhash, "" ); + + // More options handling for requests with no content + if ( !s.hasContent ) { + + // Remember the hash so we can put it back + uncached = s.url.slice( cacheURL.length ); + + // If data is available, append data to url + if ( s.data ) { + cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; + + // #9682: remove data so that it's not used in an eventual retry + delete s.data; + } + + // Add or update anti-cache param if needed + if ( s.cache === false ) { + cacheURL = cacheURL.replace( rantiCache, "$1" ); + uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached; + } + + // Put hash and anti-cache on the URL that will be requested (gh-1732) + s.url = cacheURL + uncached; + + // Change '%20' to '+' if this is encoded form body content (gh-2658) + } else if ( s.data && s.processData && + ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) { + s.data = s.data.replace( r20, "+" ); + } + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + if ( jQuery.lastModified[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] ); + } + if ( jQuery.etag[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] ); + } + } + + // Set the correct header, if data is being sent + if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) { + jqXHR.setRequestHeader( "Content-Type", s.contentType ); + } + + // Set the Accepts header for the server, depending on the dataType + jqXHR.setRequestHeader( + "Accept", + s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ? + s.accepts[ s.dataTypes[ 0 ] ] + + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) : + s.accepts[ "*" ] + ); + + // Check for headers option + for ( i in s.headers ) { + jqXHR.setRequestHeader( i, s.headers[ i ] ); + } + + // Allow custom headers/mimetypes and early abort + if ( s.beforeSend && + ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) { + + // Abort if not done already and return + return jqXHR.abort(); + } + + // Aborting is no longer a cancellation + strAbort = "abort"; + + // Install callbacks on deferreds + completeDeferred.add( s.complete ); + jqXHR.done( s.success ); + jqXHR.fail( s.error ); + + // Get transport + transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR ); + + // If no transport, we auto-abort + if ( !transport ) { + done( -1, "No Transport" ); + } else { + jqXHR.readyState = 1; + + // Send global event + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] ); + } + + // If request was aborted inside ajaxSend, stop there + if ( completed ) { + return jqXHR; + } + + // Timeout + if ( s.async && s.timeout > 0 ) { + timeoutTimer = window.setTimeout( function() { + jqXHR.abort( "timeout" ); + }, s.timeout ); + } + + try { + completed = false; + transport.send( requestHeaders, done ); + } catch ( e ) { + + // Rethrow post-completion exceptions + if ( completed ) { + throw e; + } + + // Propagate others as results + done( -1, e ); + } + } + + // Callback for when everything is done + function done( status, nativeStatusText, responses, headers ) { + var isSuccess, success, error, response, modified, + statusText = nativeStatusText; + + // Ignore repeat invocations + if ( completed ) { + return; + } + + completed = true; + + // Clear timeout if it exists + if ( timeoutTimer ) { + window.clearTimeout( timeoutTimer ); + } + + // Dereference transport for early garbage collection + // (no matter how long the jqXHR object will be used) + transport = undefined; + + // Cache response headers + responseHeadersString = headers || ""; + + // Set readyState + jqXHR.readyState = status > 0 ? 4 : 0; + + // Determine if successful + isSuccess = status >= 200 && status < 300 || status === 304; + + // Get response data + if ( responses ) { + response = ajaxHandleResponses( s, jqXHR, responses ); + } + + // Convert no matter what (that way responseXXX fields are always set) + response = ajaxConvert( s, response, jqXHR, isSuccess ); + + // If successful, handle type chaining + if ( isSuccess ) { + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + modified = jqXHR.getResponseHeader( "Last-Modified" ); + if ( modified ) { + jQuery.lastModified[ cacheURL ] = modified; + } + modified = jqXHR.getResponseHeader( "etag" ); + if ( modified ) { + jQuery.etag[ cacheURL ] = modified; + } + } + + // if no content + if ( status === 204 || s.type === "HEAD" ) { + statusText = "nocontent"; + + // if not modified + } else if ( status === 304 ) { + statusText = "notmodified"; + + // If we have data, let's convert it + } else { + statusText = response.state; + success = response.data; + error = response.error; + isSuccess = !error; + } + } else { + + // Extract error from statusText and normalize for non-aborts + error = statusText; + if ( status || !statusText ) { + statusText = "error"; + if ( status < 0 ) { + status = 0; + } + } + } + + // Set data for the fake xhr object + jqXHR.status = status; + jqXHR.statusText = ( nativeStatusText || statusText ) + ""; + + // Success/Error + if ( isSuccess ) { + deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] ); + } else { + deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] ); + } + + // Status-dependent callbacks + jqXHR.statusCode( statusCode ); + statusCode = undefined; + + if ( fireGlobals ) { + globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError", + [ jqXHR, s, isSuccess ? success : error ] ); + } + + // Complete + completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); + + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] ); + + // Handle the global AJAX counter + if ( !( --jQuery.active ) ) { + jQuery.event.trigger( "ajaxStop" ); + } + } + } + + return jqXHR; + }, + + getJSON: function( url, data, callback ) { + return jQuery.get( url, data, callback, "json" ); + }, + + getScript: function( url, callback ) { + return jQuery.get( url, undefined, callback, "script" ); + } +} ); + +jQuery.each( [ "get", "post" ], function( i, method ) { + jQuery[ method ] = function( url, data, callback, type ) { + + // Shift arguments if data argument was omitted + if ( jQuery.isFunction( data ) ) { + type = type || callback; + callback = data; + data = undefined; + } + + // The url can be an options object (which then must have .url) + return jQuery.ajax( jQuery.extend( { + url: url, + type: method, + dataType: type, + data: data, + success: callback + }, jQuery.isPlainObject( url ) && url ) ); + }; +} ); + + +jQuery._evalUrl = function( url ) { + return jQuery.ajax( { + url: url, + + // Make this explicit, since user can override this through ajaxSetup (#11264) + type: "GET", + dataType: "script", + cache: true, + async: false, + global: false, + "throws": true + } ); +}; + + +jQuery.fn.extend( { + wrapAll: function( html ) { + var wrap; + + if ( this[ 0 ] ) { + if ( jQuery.isFunction( html ) ) { + html = html.call( this[ 0 ] ); + } + + // The elements to wrap the target around + wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true ); + + if ( this[ 0 ].parentNode ) { + wrap.insertBefore( this[ 0 ] ); + } + + wrap.map( function() { + var elem = this; + + while ( elem.firstElementChild ) { + elem = elem.firstElementChild; + } + + return elem; + } ).append( this ); + } + + return this; + }, + + wrapInner: function( html ) { + if ( jQuery.isFunction( html ) ) { + return this.each( function( i ) { + jQuery( this ).wrapInner( html.call( this, i ) ); + } ); + } + + return this.each( function() { + var self = jQuery( this ), + contents = self.contents(); + + if ( contents.length ) { + contents.wrapAll( html ); + + } else { + self.append( html ); + } + } ); + }, + + wrap: function( html ) { + var isFunction = jQuery.isFunction( html ); + + return this.each( function( i ) { + jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html ); + } ); + }, + + unwrap: function( selector ) { + this.parent( selector ).not( "body" ).each( function() { + jQuery( this ).replaceWith( this.childNodes ); + } ); + return this; + } +} ); + + +jQuery.expr.pseudos.hidden = function( elem ) { + return !jQuery.expr.pseudos.visible( elem ); +}; +jQuery.expr.pseudos.visible = function( elem ) { + return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length ); +}; + + + + +jQuery.ajaxSettings.xhr = function() { + try { + return new window.XMLHttpRequest(); + } catch ( e ) {} +}; + +var xhrSuccessStatus = { + + // File protocol always yields status code 0, assume 200 + 0: 200, + + // Support: IE <=9 only + // #1450: sometimes IE returns 1223 when it should be 204 + 1223: 204 + }, + xhrSupported = jQuery.ajaxSettings.xhr(); + +support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); +support.ajax = xhrSupported = !!xhrSupported; + +jQuery.ajaxTransport( function( options ) { + var callback, errorCallback; + + // Cross domain only allowed if supported through XMLHttpRequest + if ( support.cors || xhrSupported && !options.crossDomain ) { + return { + send: function( headers, complete ) { + var i, + xhr = options.xhr(); + + xhr.open( + options.type, + options.url, + options.async, + options.username, + options.password + ); + + // Apply custom fields if provided + if ( options.xhrFields ) { + for ( i in options.xhrFields ) { + xhr[ i ] = options.xhrFields[ i ]; + } + } + + // Override mime type if needed + if ( options.mimeType && xhr.overrideMimeType ) { + xhr.overrideMimeType( options.mimeType ); + } + + // X-Requested-With header + // For cross-domain requests, seeing as conditions for a preflight are + // akin to a jigsaw puzzle, we simply never set it to be sure. + // (it can always be set on a per-request basis or even using ajaxSetup) + // For same-domain requests, won't change header if already provided. + if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { + headers[ "X-Requested-With" ] = "XMLHttpRequest"; + } + + // Set headers + for ( i in headers ) { + xhr.setRequestHeader( i, headers[ i ] ); + } + + // Callback + callback = function( type ) { + return function() { + if ( callback ) { + callback = errorCallback = xhr.onload = + xhr.onerror = xhr.onabort = xhr.onreadystatechange = null; + + if ( type === "abort" ) { + xhr.abort(); + } else if ( type === "error" ) { + + // Support: IE <=9 only + // On a manual native abort, IE9 throws + // errors on any property access that is not readyState + if ( typeof xhr.status !== "number" ) { + complete( 0, "error" ); + } else { + complete( + + // File: protocol always yields status 0; see #8605, #14207 + xhr.status, + xhr.statusText + ); + } + } else { + complete( + xhrSuccessStatus[ xhr.status ] || xhr.status, + xhr.statusText, + + // Support: IE <=9 only + // IE9 has no XHR2 but throws on binary (trac-11426) + // For XHR2 non-text, let the caller handle it (gh-2498) + ( xhr.responseType || "text" ) !== "text" || + typeof xhr.responseText !== "string" ? + { binary: xhr.response } : + { text: xhr.responseText }, + xhr.getAllResponseHeaders() + ); + } + } + }; + }; + + // Listen to events + xhr.onload = callback(); + errorCallback = xhr.onerror = callback( "error" ); + + // Support: IE 9 only + // Use onreadystatechange to replace onabort + // to handle uncaught aborts + if ( xhr.onabort !== undefined ) { + xhr.onabort = errorCallback; + } else { + xhr.onreadystatechange = function() { + + // Check readyState before timeout as it changes + if ( xhr.readyState === 4 ) { + + // Allow onerror to be called first, + // but that will not handle a native abort + // Also, save errorCallback to a variable + // as xhr.onerror cannot be accessed + window.setTimeout( function() { + if ( callback ) { + errorCallback(); + } + } ); + } + }; + } + + // Create the abort callback + callback = callback( "abort" ); + + try { + + // Do send the request (this may raise an exception) + xhr.send( options.hasContent && options.data || null ); + } catch ( e ) { + + // #14683: Only rethrow if this hasn't been notified as an error yet + if ( callback ) { + throw e; + } + } + }, + + abort: function() { + if ( callback ) { + callback(); + } + } + }; + } +} ); + + + + +// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432) +jQuery.ajaxPrefilter( function( s ) { + if ( s.crossDomain ) { + s.contents.script = false; + } +} ); + +// Install script dataType +jQuery.ajaxSetup( { + accepts: { + script: "text/javascript, application/javascript, " + + "application/ecmascript, application/x-ecmascript" + }, + contents: { + script: /\b(?:java|ecma)script\b/ + }, + converters: { + "text script": function( text ) { + jQuery.globalEval( text ); + return text; + } + } +} ); + +// Handle cache's special case and crossDomain +jQuery.ajaxPrefilter( "script", function( s ) { + if ( s.cache === undefined ) { + s.cache = false; + } + if ( s.crossDomain ) { + s.type = "GET"; + } +} ); + +// Bind script tag hack transport +jQuery.ajaxTransport( "script", function( s ) { + + // This transport only deals with cross domain requests + if ( s.crossDomain ) { + var script, callback; + return { + send: function( _, complete ) { + script = jQuery( "<script>" ).prop( { + charset: s.scriptCharset, + src: s.url + } ).on( + "load error", + callback = function( evt ) { + script.remove(); + callback = null; + if ( evt ) { + complete( evt.type === "error" ? 404 : 200, evt.type ); + } + } + ); + + // Use native DOM manipulation to avoid our domManip AJAX trickery + document.head.appendChild( script[ 0 ] ); + }, + abort: function() { + if ( callback ) { + callback(); + } + } + }; + } +} ); + + + + +var oldCallbacks = [], + rjsonp = /(=)\?(?=&|$)|\?\?/; + +// Default jsonp settings +jQuery.ajaxSetup( { + jsonp: "callback", + jsonpCallback: function() { + var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) ); + this[ callback ] = true; + return callback; + } +} ); + +// Detect, normalize options and install callbacks for jsonp requests +jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) { + + var callbackName, overwritten, responseContainer, + jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ? + "url" : + typeof s.data === "string" && + ( s.contentType || "" ) + .indexOf( "application/x-www-form-urlencoded" ) === 0 && + rjsonp.test( s.data ) && "data" + ); + + // Handle iff the expected data type is "jsonp" or we have a parameter to set + if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) { + + // Get callback name, remembering preexisting value associated with it + callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ? + s.jsonpCallback() : + s.jsonpCallback; + + // Insert callback into url or form data + if ( jsonProp ) { + s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName ); + } else if ( s.jsonp !== false ) { + s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName; + } + + // Use data converter to retrieve json after script execution + s.converters[ "script json" ] = function() { + if ( !responseContainer ) { + jQuery.error( callbackName + " was not called" ); + } + return responseContainer[ 0 ]; + }; + + // Force json dataType + s.dataTypes[ 0 ] = "json"; + + // Install callback + overwritten = window[ callbackName ]; + window[ callbackName ] = function() { + responseContainer = arguments; + }; + + // Clean-up function (fires after converters) + jqXHR.always( function() { + + // If previous value didn't exist - remove it + if ( overwritten === undefined ) { + jQuery( window ).removeProp( callbackName ); + + // Otherwise restore preexisting value + } else { + window[ callbackName ] = overwritten; + } + + // Save back as free + if ( s[ callbackName ] ) { + + // Make sure that re-using the options doesn't screw things around + s.jsonpCallback = originalSettings.jsonpCallback; + + // Save the callback name for future use + oldCallbacks.push( callbackName ); + } + + // Call if it was a function and we have a response + if ( responseContainer && jQuery.isFunction( overwritten ) ) { + overwritten( responseContainer[ 0 ] ); + } + + responseContainer = overwritten = undefined; + } ); + + // Delegate to script + return "script"; + } +} ); + + + + +// Support: Safari 8 only +// In Safari 8 documents created via document.implementation.createHTMLDocument +// collapse sibling forms: the second one becomes a child of the first one. +// Because of that, this security measure has to be disabled in Safari 8. +// https://bugs.webkit.org/show_bug.cgi?id=137337 +support.createHTMLDocument = ( function() { + var body = document.implementation.createHTMLDocument( "" ).body; + body.innerHTML = "<form></form><form></form>"; + return body.childNodes.length === 2; +} )(); + + +// Argument "data" should be string of html +// context (optional): If specified, the fragment will be created in this context, +// defaults to document +// keepScripts (optional): If true, will include scripts passed in the html string +jQuery.parseHTML = function( data, context, keepScripts ) { + if ( typeof data !== "string" ) { + return []; + } + if ( typeof context === "boolean" ) { + keepScripts = context; + context = false; + } + + var base, parsed, scripts; + + if ( !context ) { + + // Stop scripts or inline event handlers from being executed immediately + // by using document.implementation + if ( support.createHTMLDocument ) { + context = document.implementation.createHTMLDocument( "" ); + + // Set the base href for the created document + // so any parsed elements with URLs + // are based on the document's URL (gh-2965) + base = context.createElement( "base" ); + base.href = document.location.href; + context.head.appendChild( base ); + } else { + context = document; + } + } + + parsed = rsingleTag.exec( data ); + scripts = !keepScripts && []; + + // Single tag + if ( parsed ) { + return [ context.createElement( parsed[ 1 ] ) ]; + } + + parsed = buildFragment( [ data ], context, scripts ); + + if ( scripts && scripts.length ) { + jQuery( scripts ).remove(); + } + + return jQuery.merge( [], parsed.childNodes ); +}; + + +/** + * Load a url into a page + */ +jQuery.fn.load = function( url, params, callback ) { + var selector, type, response, + self = this, + off = url.indexOf( " " ); + + if ( off > -1 ) { + selector = stripAndCollapse( url.slice( off ) ); + url = url.slice( 0, off ); + } + + // If it's a function + if ( jQuery.isFunction( params ) ) { + + // We assume that it's the callback + callback = params; + params = undefined; + + // Otherwise, build a param string + } else if ( params && typeof params === "object" ) { + type = "POST"; + } + + // If we have elements to modify, make the request + if ( self.length > 0 ) { + jQuery.ajax( { + url: url, + + // If "type" variable is undefined, then "GET" method will be used. + // Make value of this field explicit since + // user can override it through ajaxSetup method + type: type || "GET", + dataType: "html", + data: params + } ).done( function( responseText ) { + + // Save response for use in complete callback + response = arguments; + + self.html( selector ? + + // If a selector was specified, locate the right elements in a dummy div + // Exclude scripts to avoid IE 'Permission Denied' errors + jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) : + + // Otherwise use the full result + responseText ); + + // If the request succeeds, this function gets "data", "status", "jqXHR" + // but they are ignored because response was set above. + // If it fails, this function gets "jqXHR", "status", "error" + } ).always( callback && function( jqXHR, status ) { + self.each( function() { + callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] ); + } ); + } ); + } + + return this; +}; + + + + +// Attach a bunch of functions for handling common AJAX events +jQuery.each( [ + "ajaxStart", + "ajaxStop", + "ajaxComplete", + "ajaxError", + "ajaxSuccess", + "ajaxSend" +], function( i, type ) { + jQuery.fn[ type ] = function( fn ) { + return this.on( type, fn ); + }; +} ); + + + + +jQuery.expr.pseudos.animated = function( elem ) { + return jQuery.grep( jQuery.timers, function( fn ) { + return elem === fn.elem; + } ).length; +}; + + + + +jQuery.offset = { + setOffset: function( elem, options, i ) { + var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition, + position = jQuery.css( elem, "position" ), + curElem = jQuery( elem ), + props = {}; + + // Set position first, in-case top/left are set even on static elem + if ( position === "static" ) { + elem.style.position = "relative"; + } + + curOffset = curElem.offset(); + curCSSTop = jQuery.css( elem, "top" ); + curCSSLeft = jQuery.css( elem, "left" ); + calculatePosition = ( position === "absolute" || position === "fixed" ) && + ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1; + + // Need to be able to calculate position if either + // top or left is auto and position is either absolute or fixed + if ( calculatePosition ) { + curPosition = curElem.position(); + curTop = curPosition.top; + curLeft = curPosition.left; + + } else { + curTop = parseFloat( curCSSTop ) || 0; + curLeft = parseFloat( curCSSLeft ) || 0; + } + + if ( jQuery.isFunction( options ) ) { + + // Use jQuery.extend here to allow modification of coordinates argument (gh-1848) + options = options.call( elem, i, jQuery.extend( {}, curOffset ) ); + } + + if ( options.top != null ) { + props.top = ( options.top - curOffset.top ) + curTop; + } + if ( options.left != null ) { + props.left = ( options.left - curOffset.left ) + curLeft; + } + + if ( "using" in options ) { + options.using.call( elem, props ); + + } else { + curElem.css( props ); + } + } +}; + +jQuery.fn.extend( { + offset: function( options ) { + + // Preserve chaining for setter + if ( arguments.length ) { + return options === undefined ? + this : + this.each( function( i ) { + jQuery.offset.setOffset( this, options, i ); + } ); + } + + var doc, docElem, rect, win, + elem = this[ 0 ]; + + if ( !elem ) { + return; + } + + // Return zeros for disconnected and hidden (display: none) elements (gh-2310) + // Support: IE <=11 only + // Running getBoundingClientRect on a + // disconnected node in IE throws an error + if ( !elem.getClientRects().length ) { + return { top: 0, left: 0 }; + } + + rect = elem.getBoundingClientRect(); + + doc = elem.ownerDocument; + docElem = doc.documentElement; + win = doc.defaultView; + + return { + top: rect.top + win.pageYOffset - docElem.clientTop, + left: rect.left + win.pageXOffset - docElem.clientLeft + }; + }, + + position: function() { + if ( !this[ 0 ] ) { + return; + } + + var offsetParent, offset, + elem = this[ 0 ], + parentOffset = { top: 0, left: 0 }; + + // Fixed elements are offset from window (parentOffset = {top:0, left: 0}, + // because it is its only offset parent + if ( jQuery.css( elem, "position" ) === "fixed" ) { + + // Assume getBoundingClientRect is there when computed position is fixed + offset = elem.getBoundingClientRect(); + + } else { + + // Get *real* offsetParent + offsetParent = this.offsetParent(); + + // Get correct offsets + offset = this.offset(); + if ( !nodeName( offsetParent[ 0 ], "html" ) ) { + parentOffset = offsetParent.offset(); + } + + // Add offsetParent borders + parentOffset = { + top: parentOffset.top + jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ), + left: parentOffset.left + jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true ) + }; + } + + // Subtract parent offsets and element margins + return { + top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ), + left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true ) + }; + }, + + // This method will return documentElement in the following cases: + // 1) For the element inside the iframe without offsetParent, this method will return + // documentElement of the parent window + // 2) For the hidden or detached element + // 3) For body or html element, i.e. in case of the html node - it will return itself + // + // but those exceptions were never presented as a real life use-cases + // and might be considered as more preferable results. + // + // This logic, however, is not guaranteed and can change at any point in the future + offsetParent: function() { + return this.map( function() { + var offsetParent = this.offsetParent; + + while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) { + offsetParent = offsetParent.offsetParent; + } + + return offsetParent || documentElement; + } ); + } +} ); + +// Create scrollLeft and scrollTop methods +jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) { + var top = "pageYOffset" === prop; + + jQuery.fn[ method ] = function( val ) { + return access( this, function( elem, method, val ) { + + // Coalesce documents and windows + var win; + if ( jQuery.isWindow( elem ) ) { + win = elem; + } else if ( elem.nodeType === 9 ) { + win = elem.defaultView; + } + + if ( val === undefined ) { + return win ? win[ prop ] : elem[ method ]; + } + + if ( win ) { + win.scrollTo( + !top ? val : win.pageXOffset, + top ? val : win.pageYOffset + ); + + } else { + elem[ method ] = val; + } + }, method, val, arguments.length ); + }; +} ); + +// Support: Safari <=7 - 9.1, Chrome <=37 - 49 +// Add the top/left cssHooks using jQuery.fn.position +// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084 +// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347 +// getComputedStyle returns percent when specified for top/left/bottom/right; +// rather than make the css module depend on the offset module, just check for it here +jQuery.each( [ "top", "left" ], function( i, prop ) { + jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition, + function( elem, computed ) { + if ( computed ) { + computed = curCSS( elem, prop ); + + // If curCSS returns percentage, fallback to offset + return rnumnonpx.test( computed ) ? + jQuery( elem ).position()[ prop ] + "px" : + computed; + } + } + ); +} ); + + +// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods +jQuery.each( { Height: "height", Width: "width" }, function( name, type ) { + jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, + function( defaultExtra, funcName ) { + + // Margin is only for outerHeight, outerWidth + jQuery.fn[ funcName ] = function( margin, value ) { + var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ), + extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" ); + + return access( this, function( elem, type, value ) { + var doc; + + if ( jQuery.isWindow( elem ) ) { + + // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729) + return funcName.indexOf( "outer" ) === 0 ? + elem[ "inner" + name ] : + elem.document.documentElement[ "client" + name ]; + } + + // Get document width or height + if ( elem.nodeType === 9 ) { + doc = elem.documentElement; + + // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height], + // whichever is greatest + return Math.max( + elem.body[ "scroll" + name ], doc[ "scroll" + name ], + elem.body[ "offset" + name ], doc[ "offset" + name ], + doc[ "client" + name ] + ); + } + + return value === undefined ? + + // Get width or height on the element, requesting but not forcing parseFloat + jQuery.css( elem, type, extra ) : + + // Set width or height on the element + jQuery.style( elem, type, value, extra ); + }, type, chainable ? margin : undefined, chainable ); + }; + } ); +} ); + + +jQuery.fn.extend( { + + bind: function( types, data, fn ) { + return this.on( types, null, data, fn ); + }, + unbind: function( types, fn ) { + return this.off( types, null, fn ); + }, + + delegate: function( selector, types, data, fn ) { + return this.on( types, selector, data, fn ); + }, + undelegate: function( selector, types, fn ) { + + // ( namespace ) or ( selector, types [, fn] ) + return arguments.length === 1 ? + this.off( selector, "**" ) : + this.off( types, selector || "**", fn ); + } +} ); + +jQuery.holdReady = function( hold ) { + if ( hold ) { + jQuery.readyWait++; + } else { + jQuery.ready( true ); + } +}; +jQuery.isArray = Array.isArray; +jQuery.parseJSON = JSON.parse; +jQuery.nodeName = nodeName; + + + + +// Register as a named AMD module, since jQuery can be concatenated with other +// files that may use define, but not via a proper concatenation script that +// understands anonymous AMD modules. 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+ + var step3list = { + icate: 'ic', + ative: '', + alize: 'al', + iciti: 'ic', + ical: 'ic', + ful: '', + ness: '' + }; + + var c = "[^aeiou]"; // consonant + var v = "[aeiouy]"; // vowel + var C = c + "[^aeiouy]*"; // consonant sequence + var V = v + "[aeiou]*"; // vowel sequence + + var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0 + var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1 + var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1 + var s_v = "^(" + C + ")?" + v; // vowel in stem + + this.stemWord = function (w) { + var stem; + var suffix; + var firstch; + var origword = w; + + if (w.length < 3) + return w; + + var re; + var re2; + var re3; + var re4; + + firstch = w.substr(0,1); + if (firstch == "y") + w = firstch.toUpperCase() + w.substr(1); + + // Step 1a + re = /^(.+?)(ss|i)es$/; + re2 = /^(.+?)([^s])s$/; + + if (re.test(w)) + w = w.replace(re,"$1$2"); + else if (re2.test(w)) + w = w.replace(re2,"$1$2"); + + // Step 1b + re = /^(.+?)eed$/; + re2 = /^(.+?)(ed|ing)$/; + if (re.test(w)) { + var fp = re.exec(w); + re = new RegExp(mgr0); + if (re.test(fp[1])) { + re = /.$/; + w = w.replace(re,""); + } + } + else if (re2.test(w)) { + var fp = re2.exec(w); + stem = fp[1]; + re2 = new RegExp(s_v); + if (re2.test(stem)) { + w = stem; + re2 = /(at|bl|iz)$/; + re3 = new RegExp("([^aeiouylsz])\\1$"); + re4 = new RegExp("^" + C + v + "[^aeiouwxy]$"); + if (re2.test(w)) + w = w + "e"; + else if (re3.test(w)) { + re = /.$/; + w = w.replace(re,""); + } + else if (re4.test(w)) + w = w + "e"; + } + } + + // Step 1c + re = /^(.+?)y$/; + if (re.test(w)) { + var fp = re.exec(w); + stem = fp[1]; + re = new RegExp(s_v); + if (re.test(stem)) + w = stem + "i"; + } + + // Step 2 + re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/; + if (re.test(w)) { + var fp = re.exec(w); + stem = fp[1]; + suffix = fp[2]; + re = new RegExp(mgr0); + if (re.test(stem)) + w = stem + step2list[suffix]; + } + + // Step 3 + re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/; + if (re.test(w)) { + var fp = re.exec(w); + stem = fp[1]; + suffix = fp[2]; + re = new RegExp(mgr0); + if (re.test(stem)) + w = stem + step3list[suffix]; + } + + // Step 4 + re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/; + re2 = /^(.+?)(s|t)(ion)$/; + if (re.test(w)) { + var fp = re.exec(w); + stem = fp[1]; + re = new RegExp(mgr1); + if (re.test(stem)) + w = stem; + } + else if (re2.test(w)) { + var fp = re2.exec(w); + stem = fp[1] + fp[2]; + re2 = new RegExp(mgr1); + if (re2.test(stem)) + w = stem; + } + + // Step 5 + re = /^(.+?)e$/; + if (re.test(w)) { + var fp = re.exec(w); + stem = fp[1]; + re = new RegExp(mgr1); + re2 = new RegExp(meq1); + re3 = new RegExp("^" + C + v + "[^aeiouwxy]$"); + if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) + w = stem; + } + re = /ll$/; + re2 = new RegExp(mgr1); + if (re.test(w) && re2.test(w)) { + re = /.$/; + w = w.replace(re,""); + } + + // and turn initial Y back to y + if (firstch == "y") + w = firstch.toLowerCase() + w.substr(1); + return w; + } +} + + + +/** + * Simple result scoring code. + */ +var Scorer = { + // Implement the following function to further tweak the score for each result + // The function takes a result array [filename, title, anchor, descr, score] + // and returns the new score. + /* + score: function(result) { + return result[4]; + }, + */ + + // query matches the full name of an object + objNameMatch: 11, + // or matches in the last dotted part of the object name + objPartialMatch: 6, + // Additive scores depending on the priority of the object + objPrio: {0: 15, // used to be importantResults + 1: 5, // used to be objectResults + 2: -5}, // used to be unimportantResults + // Used when the priority is not in the mapping. + objPrioDefault: 0, + + // query found in title + title: 15, + // query found in terms + term: 5 +}; + + + + + +var splitChars = (function() { + var result = {}; + var singles = [96, 180, 187, 191, 215, 247, 749, 885, 903, 907, 909, 930, 1014, 1648, + 1748, 1809, 2416, 2473, 2481, 2526, 2601, 2609, 2612, 2615, 2653, 2702, + 2706, 2729, 2737, 2740, 2857, 2865, 2868, 2910, 2928, 2948, 2961, 2971, + 2973, 3085, 3089, 3113, 3124, 3213, 3217, 3241, 3252, 3295, 3341, 3345, + 3369, 3506, 3516, 3633, 3715, 3721, 3736, 3744, 3748, 3750, 3756, 3761, + 3781, 3912, 4239, 4347, 4681, 4695, 4697, 4745, 4785, 4799, 4801, 4823, + 4881, 5760, 5901, 5997, 6313, 7405, 8024, 8026, 8028, 8030, 8117, 8125, + 8133, 8181, 8468, 8485, 8487, 8489, 8494, 8527, 11311, 11359, 11687, 11695, + 11703, 11711, 11719, 11727, 11735, 12448, 12539, 43010, 43014, 43019, 43587, + 43696, 43713, 64286, 64297, 64311, 64317, 64319, 64322, 64325, 65141]; + var i, j, start, end; + for (i = 0; i < singles.length; i++) { + result[singles[i]] = true; + } + var ranges = [[0, 47], [58, 64], [91, 94], [123, 169], [171, 177], [182, 184], [706, 709], + [722, 735], [741, 747], [751, 879], [888, 889], [894, 901], [1154, 1161], + [1318, 1328], [1367, 1368], [1370, 1376], [1416, 1487], [1515, 1519], [1523, 1568], + [1611, 1631], [1642, 1645], [1750, 1764], [1767, 1773], [1789, 1790], [1792, 1807], + [1840, 1868], [1958, 1968], [1970, 1983], [2027, 2035], [2038, 2041], [2043, 2047], + [2070, 2073], [2075, 2083], [2085, 2087], [2089, 2307], [2362, 2364], [2366, 2383], + [2385, 2391], [2402, 2405], [2419, 2424], [2432, 2436], [2445, 2446], [2449, 2450], + [2483, 2485], [2490, 2492], [2494, 2509], [2511, 2523], [2530, 2533], [2546, 2547], + [2554, 2564], [2571, 2574], [2577, 2578], [2618, 2648], [2655, 2661], [2672, 2673], + [2677, 2692], [2746, 2748], [2750, 2767], [2769, 2783], [2786, 2789], [2800, 2820], + [2829, 2830], [2833, 2834], [2874, 2876], [2878, 2907], [2914, 2917], [2930, 2946], + [2955, 2957], [2966, 2968], [2976, 2978], [2981, 2983], [2987, 2989], [3002, 3023], + [3025, 3045], [3059, 3076], [3130, 3132], [3134, 3159], [3162, 3167], [3170, 3173], + [3184, 3191], [3199, 3204], [3258, 3260], [3262, 3293], [3298, 3301], [3312, 3332], + [3386, 3388], [3390, 3423], [3426, 3429], [3446, 3449], [3456, 3460], [3479, 3481], + [3518, 3519], [3527, 3584], [3636, 3647], [3655, 3663], [3674, 3712], [3717, 3718], + [3723, 3724], [3726, 3731], [3752, 3753], [3764, 3772], [3774, 3775], [3783, 3791], + [3802, 3803], [3806, 3839], [3841, 3871], [3892, 3903], [3949, 3975], [3980, 4095], + [4139, 4158], [4170, 4175], [4182, 4185], [4190, 4192], [4194, 4196], [4199, 4205], + [4209, 4212], [4226, 4237], [4250, 4255], [4294, 4303], [4349, 4351], [4686, 4687], + [4702, 4703], [4750, 4751], [4790, 4791], [4806, 4807], [4886, 4887], [4955, 4968], + [4989, 4991], [5008, 5023], [5109, 5120], [5741, 5742], [5787, 5791], [5867, 5869], + [5873, 5887], [5906, 5919], [5938, 5951], [5970, 5983], [6001, 6015], [6068, 6102], + [6104, 6107], [6109, 6111], [6122, 6127], [6138, 6159], [6170, 6175], [6264, 6271], + [6315, 6319], [6390, 6399], [6429, 6469], [6510, 6511], [6517, 6527], [6572, 6592], + [6600, 6607], [6619, 6655], [6679, 6687], [6741, 6783], [6794, 6799], [6810, 6822], + [6824, 6916], [6964, 6980], [6988, 6991], [7002, 7042], [7073, 7085], [7098, 7167], + [7204, 7231], [7242, 7244], [7294, 7400], [7410, 7423], [7616, 7679], [7958, 7959], + [7966, 7967], [8006, 8007], [8014, 8015], [8062, 8063], [8127, 8129], [8141, 8143], + [8148, 8149], [8156, 8159], [8173, 8177], [8189, 8303], [8306, 8307], [8314, 8318], + [8330, 8335], [8341, 8449], [8451, 8454], [8456, 8457], [8470, 8472], [8478, 8483], + [8506, 8507], [8512, 8516], [8522, 8525], [8586, 9311], [9372, 9449], [9472, 10101], + [10132, 11263], [11493, 11498], [11503, 11516], [11518, 11519], [11558, 11567], + [11622, 11630], [11632, 11647], [11671, 11679], [11743, 11822], [11824, 12292], + [12296, 12320], [12330, 12336], [12342, 12343], [12349, 12352], [12439, 12444], + [12544, 12548], [12590, 12592], [12687, 12689], [12694, 12703], [12728, 12783], + [12800, 12831], [12842, 12880], [12896, 12927], [12938, 12976], [12992, 13311], + [19894, 19967], [40908, 40959], [42125, 42191], [42238, 42239], [42509, 42511], + [42540, 42559], [42592, 42593], [42607, 42622], [42648, 42655], [42736, 42774], + [42784, 42785], [42889, 42890], [42893, 43002], [43043, 43055], [43062, 43071], + [43124, 43137], [43188, 43215], [43226, 43249], [43256, 43258], [43260, 43263], + [43302, 43311], [43335, 43359], [43389, 43395], [43443, 43470], [43482, 43519], + [43561, 43583], [43596, 43599], [43610, 43615], [43639, 43641], [43643, 43647], + [43698, 43700], [43703, 43704], [43710, 43711], [43715, 43738], [43742, 43967], + [44003, 44015], [44026, 44031], [55204, 55215], [55239, 55242], [55292, 55295], + [57344, 63743], [64046, 64047], [64110, 64111], [64218, 64255], [64263, 64274], + [64280, 64284], [64434, 64466], [64830, 64847], [64912, 64913], [64968, 65007], + [65020, 65135], [65277, 65295], [65306, 65312], [65339, 65344], [65371, 65381], + [65471, 65473], [65480, 65481], [65488, 65489], [65496, 65497]]; + for (i = 0; i < ranges.length; i++) { + start = ranges[i][0]; + end = ranges[i][1]; + for (j = start; j <= end; j++) { + result[j] = true; + } + } + return result; +})(); + +function splitQuery(query) { + var result = []; + var start = -1; + for (var i = 0; i < query.length; i++) { + if (splitChars[query.charCodeAt(i)]) { + if (start !== -1) { + result.push(query.slice(start, i)); + start = -1; + } + } else if (start === -1) { + start = i; + } + } + if (start !== -1) { + result.push(query.slice(start)); + } + return result; +} + + + + +/** + * Search Module + */ +var Search = { + + _index : null, + _queued_query : null, + _pulse_status : -1, + + init : function() { + var params = $.getQueryParameters(); + if (params.q) { + var query = params.q[0]; + $('input[name="q"]')[0].value = query; + this.performSearch(query); + } + }, + + loadIndex : function(url) { + $.ajax({type: "GET", url: url, data: null, + dataType: "script", cache: true, + complete: function(jqxhr, textstatus) { + if (textstatus != "success") { + document.getElementById("searchindexloader").src = url; + } + }}); + }, + + setIndex : function(index) { + var q; + this._index = index; + if ((q = this._queued_query) !== null) { + this._queued_query = null; + Search.query(q); + } + }, + + hasIndex : function() { + return this._index !== null; + }, + + deferQuery : function(query) { + this._queued_query = query; + }, + + stopPulse : function() { + this._pulse_status = 0; + }, + + startPulse : function() { + if (this._pulse_status >= 0) + return; + function pulse() { + var i; + Search._pulse_status = (Search._pulse_status + 1) % 4; + var dotString = ''; + for (i = 0; i < Search._pulse_status; i++) + dotString += '.'; + Search.dots.text(dotString); + if (Search._pulse_status > -1) + window.setTimeout(pulse, 500); + } + pulse(); + }, + + /** + * perform a search for something (or wait until index is loaded) + */ + performSearch : function(query) { + // create the required interface elements + this.out = $('#search-results'); + this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out); + this.dots = $('<span></span>').appendTo(this.title); + this.status = $('<p style="display: none"></p>').appendTo(this.out); + this.output = $('<ul class="search"/>').appendTo(this.out); + + $('#search-progress').text(_('Preparing search...')); + this.startPulse(); + + // index already loaded, the browser was quick! + if (this.hasIndex()) + this.query(query); + else + this.deferQuery(query); + }, + + /** + * execute search (requires search index to be loaded) + */ + query : function(query) { + var i; + var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"]; + + // stem the searchterms and add them to the correct list + var stemmer = new Stemmer(); + var searchterms = []; + var excluded = []; + var hlterms = []; + var tmp = splitQuery(query); + var objectterms = []; + for (i = 0; i < tmp.length; i++) { + if (tmp[i] !== "") { + objectterms.push(tmp[i].toLowerCase()); + } + + if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) || + tmp[i] === "") { + // skip this "word" + continue; + } + // stem the word + var word = stemmer.stemWord(tmp[i].toLowerCase()); + // prevent stemmer from cutting word smaller than two chars + if(word.length < 3 && tmp[i].length >= 3) { + word = tmp[i]; + } + var toAppend; + // select the correct list + if (word[0] == '-') { + toAppend = excluded; + word = word.substr(1); + } + else { + toAppend = searchterms; + hlterms.push(tmp[i].toLowerCase()); + } + // only add if not already in the list + if (!$u.contains(toAppend, word)) + toAppend.push(word); + } + var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" ")); + + // console.debug('SEARCH: searching for:'); + // console.info('required: ', searchterms); + // console.info('excluded: ', excluded); + + // prepare search + var terms = this._index.terms; + var titleterms = this._index.titleterms; + + // array of [filename, title, anchor, descr, score] + var results = []; + $('#search-progress').empty(); + + // lookup as object + for (i = 0; i < objectterms.length; i++) { + var others = [].concat(objectterms.slice(0, i), + objectterms.slice(i+1, objectterms.length)); + results = results.concat(this.performObjectSearch(objectterms[i], others)); + } + + // lookup as search terms in fulltext + results = results.concat(this.performTermsSearch(searchterms, excluded, terms, titleterms)); + + // let the scorer override scores with a custom scoring function + if (Scorer.score) { + for (i = 0; i < results.length; i++) + results[i][4] = Scorer.score(results[i]); + } + + // now sort the results by score (in opposite order of appearance, since the + // display function below uses pop() to retrieve items) and then + // alphabetically + results.sort(function(a, b) { + var left = a[4]; + var right = b[4]; + if (left > right) { + return 1; + } else if (left < right) { + return -1; + } else { + // same score: sort alphabetically + left = a[1].toLowerCase(); + right = b[1].toLowerCase(); + return (left > right) ? -1 : ((left < right) ? 1 : 0); + } + }); + + // for debugging + //Search.lastresults = results.slice(); // a copy + //console.info('search results:', Search.lastresults); + + // print the results + var resultCount = results.length; + function displayNextItem() { + // results left, load the summary and display it + if (results.length) { + var item = results.pop(); + var listItem = $('<li style="display:none"></li>'); + if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') { + // dirhtml builder + var dirname = item[0] + '/'; + if (dirname.match(/\/index\/$/)) { + dirname = dirname.substring(0, dirname.length-6); + } else if (dirname == 'index/') { + dirname = ''; + } + listItem.append($('<a/>').attr('href', + DOCUMENTATION_OPTIONS.URL_ROOT + dirname + + highlightstring + item[2]).html(item[1])); + } else { + // normal html builders + listItem.append($('<a/>').attr('href', + item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX + + highlightstring + item[2]).html(item[1])); + } + if (item[3]) { + listItem.append($('<span> (' + item[3] + ')</span>')); + Search.output.append(listItem); + listItem.slideDown(5, function() { + displayNextItem(); + }); + } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) { + var suffix = DOCUMENTATION_OPTIONS.SOURCELINK_SUFFIX; + if (suffix === undefined) { + suffix = '.txt'; + } + $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[5] + (item[5].slice(-suffix.length) === suffix ? '' : suffix), + dataType: "text", + complete: function(jqxhr, textstatus) { + var data = jqxhr.responseText; + if (data !== '' && data !== undefined) { + listItem.append(Search.makeSearchSummary(data, searchterms, hlterms)); + } + Search.output.append(listItem); + listItem.slideDown(5, function() { + displayNextItem(); + }); + }}); + } else { + // no source available, just display title + Search.output.append(listItem); + listItem.slideDown(5, function() { + displayNextItem(); + }); + } + } + // search finished, update title and status message + else { + Search.stopPulse(); + Search.title.text(_('Search Results')); + if (!resultCount) + Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.')); + else + Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount)); + Search.status.fadeIn(500); + } + } + displayNextItem(); + }, + + /** + * search for object names + */ + performObjectSearch : function(object, otherterms) { + var filenames = this._index.filenames; + var docnames = this._index.docnames; + var objects = this._index.objects; + var objnames = this._index.objnames; + var titles = this._index.titles; + + var i; + var results = []; + + for (var prefix in objects) { + for (var name in objects[prefix]) { + var fullname = (prefix ? prefix + '.' : '') + name; + if (fullname.toLowerCase().indexOf(object) > -1) { + var score = 0; + var parts = fullname.split('.'); + // check for different match types: exact matches of full name or + // "last name" (i.e. last dotted part) + if (fullname == object || parts[parts.length - 1] == object) { + score += Scorer.objNameMatch; + // matches in last name + } else if (parts[parts.length - 1].indexOf(object) > -1) { + score += Scorer.objPartialMatch; + } + var match = objects[prefix][name]; + var objname = objnames[match[1]][2]; + var title = titles[match[0]]; + // If more than one term searched for, we require other words to be + // found in the name/title/description + if (otherterms.length > 0) { + var haystack = (prefix + ' ' + name + ' ' + + objname + ' ' + title).toLowerCase(); + var allfound = true; + for (i = 0; i < otherterms.length; i++) { + if (haystack.indexOf(otherterms[i]) == -1) { + allfound = false; + break; + } + } + if (!allfound) { + continue; + } + } + var descr = objname + _(', in ') + title; + + var anchor = match[3]; + if (anchor === '') + anchor = fullname; + else if (anchor == '-') + anchor = objnames[match[1]][1] + '-' + fullname; + // add custom score for some objects according to scorer + if (Scorer.objPrio.hasOwnProperty(match[2])) { + score += Scorer.objPrio[match[2]]; + } else { + score += Scorer.objPrioDefault; + } + results.push([docnames[match[0]], fullname, '#'+anchor, descr, score, filenames[match[0]]]); + } + } + } + + return results; + }, + + /** + * search for full-text terms in the index + */ + performTermsSearch : function(searchterms, excluded, terms, titleterms) { + var docnames = this._index.docnames; + var filenames = this._index.filenames; + var titles = this._index.titles; + + var i, j, file; + var fileMap = {}; + var scoreMap = {}; + var results = []; + + // perform the search on the required terms + for (i = 0; i < searchterms.length; i++) { + var word = searchterms[i]; + var files = []; + var _o = [ + {files: terms[word], score: Scorer.term}, + {files: titleterms[word], score: Scorer.title} + ]; + + // no match but word was a required one + if ($u.every(_o, function(o){return o.files === undefined;})) { + break; + } + // found search word in contents + $u.each(_o, function(o) { + var _files = o.files; + if (_files === undefined) + return + + if (_files.length === undefined) + _files = [_files]; + files = files.concat(_files); + + // set score for the word in each file to Scorer.term + for (j = 0; j < _files.length; j++) { + file = _files[j]; + if (!(file in scoreMap)) + scoreMap[file] = {} + scoreMap[file][word] = o.score; + } + }); + + // create the mapping + for (j = 0; j < files.length; j++) { + file = files[j]; + if (file in fileMap) + fileMap[file].push(word); + else + fileMap[file] = [word]; + } + } + + // now check if the files don't contain excluded terms + for (file in fileMap) { + var valid = true; + + // check if all requirements are matched + if (fileMap[file].length != searchterms.length) + continue; + + // ensure that none of the excluded terms is in the search result + for (i = 0; i < excluded.length; i++) { + if (terms[excluded[i]] == file || + titleterms[excluded[i]] == file || + $u.contains(terms[excluded[i]] || [], file) || + $u.contains(titleterms[excluded[i]] || [], file)) { + valid = false; + break; + } + } + + // if we have still a valid result we can add it to the result list + if (valid) { + // select one (max) score for the file. + // for better ranking, we should calculate ranking by using words statistics like basic tf-idf... + var score = $u.max($u.map(fileMap[file], function(w){return scoreMap[file][w]})); + results.push([docnames[file], titles[file], '', null, score, filenames[file]]); + } + } + return results; + }, + + /** + * helper function to return a node containing the + * search summary for a given text. keywords is a list + * of stemmed words, hlwords is the list of normal, unstemmed + * words. the first one is used to find the occurrence, the + * latter for highlighting it. + */ + makeSearchSummary : function(text, keywords, hlwords) { + var textLower = text.toLowerCase(); + var start = 0; + $.each(keywords, function() { + var i = textLower.indexOf(this.toLowerCase()); + if (i > -1) + start = i; + }); + start = Math.max(start - 120, 0); + var excerpt = ((start > 0) ? '...' : '') + + $.trim(text.substr(start, 240)) + + ((start + 240 - text.length) ? '...' : ''); + var rv = $('<div class="context"></div>').text(excerpt); + $.each(hlwords, function() { + rv = rv.highlightText(this, 'highlighted'); + }); + return rv; + } +}; + +$(document).ready(function() { + Search.init(); +});
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/underscore-1.3.1.js b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/underscore-1.3.1.js new file mode 100644 index 00000000000..208d4cd890c --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/underscore-1.3.1.js @@ -0,0 +1,999 @@ +// Underscore.js 1.3.1 +// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. +// Underscore is freely distributable under the MIT license. +// Portions of Underscore are inspired or borrowed from Prototype, +// Oliver Steele's Functional, and John Resig's Micro-Templating. +// For all details and documentation: +// http://documentcloud.github.com/underscore + +(function() { + + // Baseline setup + // -------------- + + // Establish the root object, `window` in the browser, or `global` on the server. + var root = this; + + // Save the previous value of the `_` variable. + var previousUnderscore = root._; + + // Establish the object that gets returned to break out of a loop iteration. + var breaker = {}; + + // Save bytes in the minified (but not gzipped) version: + var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; + + // Create quick reference variables for speed access to core prototypes. + var slice = ArrayProto.slice, + unshift = ArrayProto.unshift, + toString = ObjProto.toString, + hasOwnProperty = ObjProto.hasOwnProperty; + + // All **ECMAScript 5** native function implementations that we hope to use + // are declared here. + var + nativeForEach = ArrayProto.forEach, + nativeMap = ArrayProto.map, + nativeReduce = ArrayProto.reduce, + nativeReduceRight = ArrayProto.reduceRight, + nativeFilter = ArrayProto.filter, + nativeEvery = ArrayProto.every, + nativeSome = ArrayProto.some, + nativeIndexOf = ArrayProto.indexOf, + nativeLastIndexOf = ArrayProto.lastIndexOf, + nativeIsArray = Array.isArray, + nativeKeys = Object.keys, + nativeBind = FuncProto.bind; + + // Create a safe reference to the Underscore object for use below. + var _ = function(obj) { return new wrapper(obj); }; + + // Export the Underscore object for **Node.js**, with + // backwards-compatibility for the old `require()` API. If we're in + // the browser, add `_` as a global object via a string identifier, + // for Closure Compiler "advanced" mode. + if (typeof exports !== 'undefined') { + if (typeof module !== 'undefined' && module.exports) { + exports = module.exports = _; + } + exports._ = _; + } else { + root['_'] = _; + } + + // Current version. + _.VERSION = '1.3.1'; + + // Collection Functions + // -------------------- + + // The cornerstone, an `each` implementation, aka `forEach`. + // Handles objects with the built-in `forEach`, arrays, and raw objects. + // Delegates to **ECMAScript 5**'s native `forEach` if available. + var each = _.each = _.forEach = function(obj, iterator, context) { + if (obj == null) return; + if (nativeForEach && obj.forEach === nativeForEach) { + obj.forEach(iterator, context); + } else if (obj.length === +obj.length) { + for (var i = 0, l = obj.length; i < l; i++) { + if (i in obj && iterator.call(context, obj[i], i, obj) === breaker) return; + } + } else { + for (var key in obj) { + if (_.has(obj, key)) { + if (iterator.call(context, obj[key], key, obj) === breaker) return; + } + } + } + }; + + // Return the results of applying the iterator to each element. + // Delegates to **ECMAScript 5**'s native `map` if available. + _.map = _.collect = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context); + each(obj, function(value, index, list) { + results[results.length] = iterator.call(context, value, index, list); + }); + if (obj.length === +obj.length) results.length = obj.length; + return results; + }; + + // **Reduce** builds up a single result from a list of values, aka `inject`, + // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available. + _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (obj == null) obj = []; + if (nativeReduce && obj.reduce === nativeReduce) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator); + } + each(obj, function(value, index, list) { + if (!initial) { + memo = value; + initial = true; + } else { + memo = iterator.call(context, memo, value, index, list); + } + }); + if (!initial) throw new TypeError('Reduce of empty array with no initial value'); + return memo; + }; + + // The right-associative version of reduce, also known as `foldr`. + // Delegates to **ECMAScript 5**'s native `reduceRight` if available. + _.reduceRight = _.foldr = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (obj == null) obj = []; + if (nativeReduceRight && obj.reduceRight === nativeReduceRight) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator); + } + var reversed = _.toArray(obj).reverse(); + if (context && !initial) iterator = _.bind(iterator, context); + return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator); + }; + + // Return the first value which passes a truth test. Aliased as `detect`. + _.find = _.detect = function(obj, iterator, context) { + var result; + any(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) { + result = value; + return true; + } + }); + return result; + }; + + // Return all the elements that pass a truth test. + // Delegates to **ECMAScript 5**'s native `filter` if available. + // Aliased as `select`. + _.filter = _.select = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context); + each(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Return all the elements for which a truth test fails. + _.reject = function(obj, iterator, context) { + var results = []; + if (obj == null) return results; + each(obj, function(value, index, list) { + if (!iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Determine whether all of the elements match a truth test. + // Delegates to **ECMAScript 5**'s native `every` if available. + // Aliased as `all`. + _.every = _.all = function(obj, iterator, context) { + var result = true; + if (obj == null) return result; + if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context); + each(obj, function(value, index, list) { + if (!(result = result && iterator.call(context, value, index, list))) return breaker; + }); + return result; + }; + + // Determine if at least one element in the object matches a truth test. + // Delegates to **ECMAScript 5**'s native `some` if available. + // Aliased as `any`. + var any = _.some = _.any = function(obj, iterator, context) { + iterator || (iterator = _.identity); + var result = false; + if (obj == null) return result; + if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context); + each(obj, function(value, index, list) { + if (result || (result = iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if a given value is included in the array or object using `===`. + // Aliased as `contains`. + _.include = _.contains = function(obj, target) { + var found = false; + if (obj == null) return found; + if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1; + found = any(obj, function(value) { + return value === target; + }); + return found; + }; + + // Invoke a method (with arguments) on every item in a collection. + _.invoke = function(obj, method) { + var args = slice.call(arguments, 2); + return _.map(obj, function(value) { + return (_.isFunction(method) ? method || value : value[method]).apply(value, args); + }); + }; + + // Convenience version of a common use case of `map`: fetching a property. + _.pluck = function(obj, key) { + return _.map(obj, function(value){ return value[key]; }); + }; + + // Return the maximum element or (element-based computation). + _.max = function(obj, iterator, context) { + if (!iterator && _.isArray(obj)) return Math.max.apply(Math, obj); + if (!iterator && _.isEmpty(obj)) return -Infinity; + var result = {computed : -Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed >= result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Return the minimum element (or element-based computation). + _.min = function(obj, iterator, context) { + if (!iterator && _.isArray(obj)) return Math.min.apply(Math, obj); + if (!iterator && _.isEmpty(obj)) return Infinity; + var result = {computed : Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed < result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Shuffle an array. + _.shuffle = function(obj) { + var shuffled = [], rand; + each(obj, function(value, index, list) { + if (index == 0) { + shuffled[0] = value; + } else { + rand = Math.floor(Math.random() * (index + 1)); + shuffled[index] = shuffled[rand]; + shuffled[rand] = value; + } + }); + return shuffled; + }; + + // Sort the object's values by a criterion produced by an iterator. + _.sortBy = function(obj, iterator, context) { + return _.pluck(_.map(obj, function(value, index, list) { + return { + value : value, + criteria : iterator.call(context, value, index, list) + }; + }).sort(function(left, right) { + var a = left.criteria, b = right.criteria; + return a < b ? -1 : a > b ? 1 : 0; + }), 'value'); + }; + + // Groups the object's values by a criterion. Pass either a string attribute + // to group by, or a function that returns the criterion. + _.groupBy = function(obj, val) { + var result = {}; + var iterator = _.isFunction(val) ? val : function(obj) { return obj[val]; }; + each(obj, function(value, index) { + var key = iterator(value, index); + (result[key] || (result[key] = [])).push(value); + }); + return result; + }; + + // Use a comparator function to figure out at what index an object should + // be inserted so as to maintain order. Uses binary search. + _.sortedIndex = function(array, obj, iterator) { + iterator || (iterator = _.identity); + var low = 0, high = array.length; + while (low < high) { + var mid = (low + high) >> 1; + iterator(array[mid]) < iterator(obj) ? low = mid + 1 : high = mid; + } + return low; + }; + + // Safely convert anything iterable into a real, live array. + _.toArray = function(iterable) { + if (!iterable) return []; + if (iterable.toArray) return iterable.toArray(); + if (_.isArray(iterable)) return slice.call(iterable); + if (_.isArguments(iterable)) return slice.call(iterable); + return _.values(iterable); + }; + + // Return the number of elements in an object. + _.size = function(obj) { + return _.toArray(obj).length; + }; + + // Array Functions + // --------------- + + // Get the first element of an array. Passing **n** will return the first N + // values in the array. Aliased as `head`. The **guard** check allows it to work + // with `_.map`. + _.first = _.head = function(array, n, guard) { + return (n != null) && !guard ? slice.call(array, 0, n) : array[0]; + }; + + // Returns everything but the last entry of the array. Especcialy useful on + // the arguments object. Passing **n** will return all the values in + // the array, excluding the last N. The **guard** check allows it to work with + // `_.map`. + _.initial = function(array, n, guard) { + return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n)); + }; + + // Get the last element of an array. Passing **n** will return the last N + // values in the array. The **guard** check allows it to work with `_.map`. + _.last = function(array, n, guard) { + if ((n != null) && !guard) { + return slice.call(array, Math.max(array.length - n, 0)); + } else { + return array[array.length - 1]; + } + }; + + // Returns everything but the first entry of the array. Aliased as `tail`. + // Especially useful on the arguments object. Passing an **index** will return + // the rest of the values in the array from that index onward. The **guard** + // check allows it to work with `_.map`. + _.rest = _.tail = function(array, index, guard) { + return slice.call(array, (index == null) || guard ? 1 : index); + }; + + // Trim out all falsy values from an array. + _.compact = function(array) { + return _.filter(array, function(value){ return !!value; }); + }; + + // Return a completely flattened version of an array. + _.flatten = function(array, shallow) { + return _.reduce(array, function(memo, value) { + if (_.isArray(value)) return memo.concat(shallow ? value : _.flatten(value)); + memo[memo.length] = value; + return memo; + }, []); + }; + + // Return a version of the array that does not contain the specified value(s). + _.without = function(array) { + return _.difference(array, slice.call(arguments, 1)); + }; + + // Produce a duplicate-free version of the array. If the array has already + // been sorted, you have the option of using a faster algorithm. + // Aliased as `unique`. + _.uniq = _.unique = function(array, isSorted, iterator) { + var initial = iterator ? _.map(array, iterator) : array; + var result = []; + _.reduce(initial, function(memo, el, i) { + if (0 == i || (isSorted === true ? _.last(memo) != el : !_.include(memo, el))) { + memo[memo.length] = el; + result[result.length] = array[i]; + } + return memo; + }, []); + return result; + }; + + // Produce an array that contains the union: each distinct element from all of + // the passed-in arrays. + _.union = function() { + return _.uniq(_.flatten(arguments, true)); + }; + + // Produce an array that contains every item shared between all the + // passed-in arrays. (Aliased as "intersect" for back-compat.) + _.intersection = _.intersect = function(array) { + var rest = slice.call(arguments, 1); + return _.filter(_.uniq(array), function(item) { + return _.every(rest, function(other) { + return _.indexOf(other, item) >= 0; + }); + }); + }; + + // Take the difference between one array and a number of other arrays. + // Only the elements present in just the first array will remain. + _.difference = function(array) { + var rest = _.flatten(slice.call(arguments, 1)); + return _.filter(array, function(value){ return !_.include(rest, value); }); + }; + + // Zip together multiple lists into a single array -- elements that share + // an index go together. + _.zip = function() { + var args = slice.call(arguments); + var length = _.max(_.pluck(args, 'length')); + var results = new Array(length); + for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i); + return results; + }; + + // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**), + // we need this function. Return the position of the first occurrence of an + // item in an array, or -1 if the item is not included in the array. + // Delegates to **ECMAScript 5**'s native `indexOf` if available. + // If the array is large and already in sort order, pass `true` + // for **isSorted** to use binary search. + _.indexOf = function(array, item, isSorted) { + if (array == null) return -1; + var i, l; + if (isSorted) { + i = _.sortedIndex(array, item); + return array[i] === item ? i : -1; + } + if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item); + for (i = 0, l = array.length; i < l; i++) if (i in array && array[i] === item) return i; + return -1; + }; + + // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available. + _.lastIndexOf = function(array, item) { + if (array == null) return -1; + if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item); + var i = array.length; + while (i--) if (i in array && array[i] === item) return i; + return -1; + }; + + // Generate an integer Array containing an arithmetic progression. A port of + // the native Python `range()` function. See + // [the Python documentation](http://docs.python.org/library/functions.html#range). + _.range = function(start, stop, step) { + if (arguments.length <= 1) { + stop = start || 0; + start = 0; + } + step = arguments[2] || 1; + + var len = Math.max(Math.ceil((stop - start) / step), 0); + var idx = 0; + var range = new Array(len); + + while(idx < len) { + range[idx++] = start; + start += step; + } + + return range; + }; + + // Function (ahem) Functions + // ------------------ + + // Reusable constructor function for prototype setting. + var ctor = function(){}; + + // Create a function bound to a given object (assigning `this`, and arguments, + // optionally). Binding with arguments is also known as `curry`. + // Delegates to **ECMAScript 5**'s native `Function.bind` if available. + // We check for `func.bind` first, to fail fast when `func` is undefined. + _.bind = function bind(func, context) { + var bound, args; + if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1)); + if (!_.isFunction(func)) throw new TypeError; + args = slice.call(arguments, 2); + return bound = function() { + if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments))); + ctor.prototype = func.prototype; + var self = new ctor; + var result = func.apply(self, args.concat(slice.call(arguments))); + if (Object(result) === result) return result; + return self; + }; + }; + + // Bind all of an object's methods to that object. Useful for ensuring that + // all callbacks defined on an object belong to it. + _.bindAll = function(obj) { + var funcs = slice.call(arguments, 1); + if (funcs.length == 0) funcs = _.functions(obj); + each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); }); + return obj; + }; + + // Memoize an expensive function by storing its results. + _.memoize = function(func, hasher) { + var memo = {}; + hasher || (hasher = _.identity); + return function() { + var key = hasher.apply(this, arguments); + return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments)); + }; + }; + + // Delays a function for the given number of milliseconds, and then calls + // it with the arguments supplied. + _.delay = function(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function(){ return func.apply(func, args); }, wait); + }; + + // Defers a function, scheduling it to run after the current call stack has + // cleared. + _.defer = function(func) { + return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1))); + }; + + // Returns a function, that, when invoked, will only be triggered at most once + // during a given window of time. + _.throttle = function(func, wait) { + var context, args, timeout, throttling, more; + var whenDone = _.debounce(function(){ more = throttling = false; }, wait); + return function() { + context = this; args = arguments; + var later = function() { + timeout = null; + if (more) func.apply(context, args); + whenDone(); + }; + if (!timeout) timeout = setTimeout(later, wait); + if (throttling) { + more = true; + } else { + func.apply(context, args); + } + whenDone(); + throttling = true; + }; + }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // N milliseconds. + _.debounce = function(func, wait) { + var timeout; + return function() { + var context = this, args = arguments; + var later = function() { + timeout = null; + func.apply(context, args); + }; + clearTimeout(timeout); + timeout = setTimeout(later, wait); + }; + }; + + // Returns a function that will be executed at most one time, no matter how + // often you call it. Useful for lazy initialization. + _.once = function(func) { + var ran = false, memo; + return function() { + if (ran) return memo; + ran = true; + return memo = func.apply(this, arguments); + }; + }; + + // Returns the first function passed as an argument to the second, + // allowing you to adjust arguments, run code before and after, and + // conditionally execute the original function. + _.wrap = function(func, wrapper) { + return function() { + var args = [func].concat(slice.call(arguments, 0)); + return wrapper.apply(this, args); + }; + }; + + // Returns a function that is the composition of a list of functions, each + // consuming the return value of the function that follows. + _.compose = function() { + var funcs = arguments; + return function() { + var args = arguments; + for (var i = funcs.length - 1; i >= 0; i--) { + args = [funcs[i].apply(this, args)]; + } + return args[0]; + }; + }; + + // Returns a function that will only be executed after being called N times. + _.after = function(times, func) { + if (times <= 0) return func(); + return function() { + if (--times < 1) { return func.apply(this, arguments); } + }; + }; + + // Object Functions + // ---------------- + + // Retrieve the names of an object's properties. + // Delegates to **ECMAScript 5**'s native `Object.keys` + _.keys = nativeKeys || function(obj) { + if (obj !== Object(obj)) throw new TypeError('Invalid object'); + var keys = []; + for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key; + return keys; + }; + + // Retrieve the values of an object's properties. + _.values = function(obj) { + return _.map(obj, _.identity); + }; + + // Return a sorted list of the function names available on the object. + // Aliased as `methods` + _.functions = _.methods = function(obj) { + var names = []; + for (var key in obj) { + if (_.isFunction(obj[key])) names.push(key); + } + return names.sort(); + }; + + // Extend a given object with all the properties in passed-in object(s). + _.extend = function(obj) { + each(slice.call(arguments, 1), function(source) { + for (var prop in source) { + obj[prop] = source[prop]; + } + }); + return obj; + }; + + // Fill in a given object with default properties. + _.defaults = function(obj) { + each(slice.call(arguments, 1), function(source) { + for (var prop in source) { + if (obj[prop] == null) obj[prop] = source[prop]; + } + }); + return obj; + }; + + // Create a (shallow-cloned) duplicate of an object. + _.clone = function(obj) { + if (!_.isObject(obj)) return obj; + return _.isArray(obj) ? obj.slice() : _.extend({}, obj); + }; + + // Invokes interceptor with the obj, and then returns obj. + // The primary purpose of this method is to "tap into" a method chain, in + // order to perform operations on intermediate results within the chain. + _.tap = function(obj, interceptor) { + interceptor(obj); + return obj; + }; + + // Internal recursive comparison function. + function eq(a, b, stack) { + // Identical objects are equal. `0 === -0`, but they aren't identical. + // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal. + if (a === b) return a !== 0 || 1 / a == 1 / b; + // A strict comparison is necessary because `null == undefined`. + if (a == null || b == null) return a === b; + // Unwrap any wrapped objects. + if (a._chain) a = a._wrapped; + if (b._chain) b = b._wrapped; + // Invoke a custom `isEqual` method if one is provided. + if (a.isEqual && _.isFunction(a.isEqual)) return a.isEqual(b); + if (b.isEqual && _.isFunction(b.isEqual)) return b.isEqual(a); + // Compare `[[Class]]` names. + var className = toString.call(a); + if (className != toString.call(b)) return false; + switch (className) { + // Strings, numbers, dates, and booleans are compared by value. + case '[object String]': + // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is + // equivalent to `new String("5")`. + return a == String(b); + case '[object Number]': + // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for + // other numeric values. + return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b); + case '[object Date]': + case '[object Boolean]': + // Coerce dates and booleans to numeric primitive values. Dates are compared by their + // millisecond representations. Note that invalid dates with millisecond representations + // of `NaN` are not equivalent. + return +a == +b; + // RegExps are compared by their source patterns and flags. + case '[object RegExp]': + return a.source == b.source && + a.global == b.global && + a.multiline == b.multiline && + a.ignoreCase == b.ignoreCase; + } + if (typeof a != 'object' || typeof b != 'object') return false; + // Assume equality for cyclic structures. The algorithm for detecting cyclic + // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`. + var length = stack.length; + while (length--) { + // Linear search. Performance is inversely proportional to the number of + // unique nested structures. + if (stack[length] == a) return true; + } + // Add the first object to the stack of traversed objects. + stack.push(a); + var size = 0, result = true; + // Recursively compare objects and arrays. + if (className == '[object Array]') { + // Compare array lengths to determine if a deep comparison is necessary. + size = a.length; + result = size == b.length; + if (result) { + // Deep compare the contents, ignoring non-numeric properties. + while (size--) { + // Ensure commutative equality for sparse arrays. + if (!(result = size in a == size in b && eq(a[size], b[size], stack))) break; + } + } + } else { + // Objects with different constructors are not equivalent. + if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) return false; + // Deep compare objects. + for (var key in a) { + if (_.has(a, key)) { + // Count the expected number of properties. + size++; + // Deep compare each member. + if (!(result = _.has(b, key) && eq(a[key], b[key], stack))) break; + } + } + // Ensure that both objects contain the same number of properties. + if (result) { + for (key in b) { + if (_.has(b, key) && !(size--)) break; + } + result = !size; + } + } + // Remove the first object from the stack of traversed objects. + stack.pop(); + return result; + } + + // Perform a deep comparison to check if two objects are equal. + _.isEqual = function(a, b) { + return eq(a, b, []); + }; + + // Is a given array, string, or object empty? + // An "empty" object has no enumerable own-properties. + _.isEmpty = function(obj) { + if (_.isArray(obj) || _.isString(obj)) return obj.length === 0; + for (var key in obj) if (_.has(obj, key)) return false; + return true; + }; + + // Is a given value a DOM element? + _.isElement = function(obj) { + return !!(obj && obj.nodeType == 1); + }; + + // Is a given value an array? + // Delegates to ECMA5's native Array.isArray + _.isArray = nativeIsArray || function(obj) { + return toString.call(obj) == '[object Array]'; + }; + + // Is a given variable an object? + _.isObject = function(obj) { + return obj === Object(obj); + }; + + // Is a given variable an arguments object? + _.isArguments = function(obj) { + return toString.call(obj) == '[object Arguments]'; + }; + if (!_.isArguments(arguments)) { + _.isArguments = function(obj) { + return !!(obj && _.has(obj, 'callee')); + }; + } + + // Is a given value a function? + _.isFunction = function(obj) { + return toString.call(obj) == '[object Function]'; + }; + + // Is a given value a string? + _.isString = function(obj) { + return toString.call(obj) == '[object String]'; + }; + + // Is a given value a number? + _.isNumber = function(obj) { + return toString.call(obj) == '[object Number]'; + }; + + // Is the given value `NaN`? + _.isNaN = function(obj) { + // `NaN` is the only value for which `===` is not reflexive. + return obj !== obj; + }; + + // Is a given value a boolean? + _.isBoolean = function(obj) { + return obj === true || obj === false || toString.call(obj) == '[object Boolean]'; + }; + + // Is a given value a date? + _.isDate = function(obj) { + return toString.call(obj) == '[object Date]'; + }; + + // Is the given value a regular expression? + _.isRegExp = function(obj) { + return toString.call(obj) == '[object RegExp]'; + }; + + // Is a given value equal to null? + _.isNull = function(obj) { + return obj === null; + }; + + // Is a given variable undefined? + _.isUndefined = function(obj) { + return obj === void 0; + }; + + // Has own property? + _.has = function(obj, key) { + return hasOwnProperty.call(obj, key); + }; + + // Utility Functions + // ----------------- + + // Run Underscore.js in *noConflict* mode, returning the `_` variable to its + // previous owner. Returns a reference to the Underscore object. + _.noConflict = function() { + root._ = previousUnderscore; + return this; + }; + + // Keep the identity function around for default iterators. + _.identity = function(value) { + return value; + }; + + // Run a function **n** times. + _.times = function (n, iterator, context) { + for (var i = 0; i < n; i++) iterator.call(context, i); + }; + + // Escape a string for HTML interpolation. + _.escape = function(string) { + return (''+string).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"').replace(/'/g, ''').replace(/\//g,'/'); + }; + + // Add your own custom functions to the Underscore object, ensuring that + // they're correctly added to the OOP wrapper as well. + _.mixin = function(obj) { + each(_.functions(obj), function(name){ + addToWrapper(name, _[name] = obj[name]); + }); + }; + + // Generate a unique integer id (unique within the entire client session). + // Useful for temporary DOM ids. + var idCounter = 0; + _.uniqueId = function(prefix) { + var id = idCounter++; + return prefix ? prefix + id : id; + }; + + // By default, Underscore uses ERB-style template delimiters, change the + // following template settings to use alternative delimiters. + _.templateSettings = { + evaluate : /<%([\s\S]+?)%>/g, + interpolate : /<%=([\s\S]+?)%>/g, + escape : /<%-([\s\S]+?)%>/g + }; + + // When customizing `templateSettings`, if you don't want to define an + // interpolation, evaluation or escaping regex, we need one that is + // guaranteed not to match. + var noMatch = /.^/; + + // Within an interpolation, evaluation, or escaping, remove HTML escaping + // that had been previously added. + var unescape = function(code) { + return code.replace(/\\\\/g, '\\').replace(/\\'/g, "'"); + }; + + // JavaScript micro-templating, similar to John Resig's implementation. + // Underscore templating handles arbitrary delimiters, preserves whitespace, + // and correctly escapes quotes within interpolated code. + _.template = function(str, data) { + var c = _.templateSettings; + var tmpl = 'var __p=[],print=function(){__p.push.apply(__p,arguments);};' + + 'with(obj||{}){__p.push(\'' + + str.replace(/\\/g, '\\\\') + .replace(/'/g, "\\'") + .replace(c.escape || noMatch, function(match, code) { + return "',_.escape(" + unescape(code) + "),'"; + }) + .replace(c.interpolate || noMatch, function(match, code) { + return "'," + unescape(code) + ",'"; + }) + .replace(c.evaluate || noMatch, function(match, code) { + return "');" + unescape(code).replace(/[\r\n\t]/g, ' ') + ";__p.push('"; + }) + .replace(/\r/g, '\\r') + .replace(/\n/g, '\\n') + .replace(/\t/g, '\\t') + + "');}return __p.join('');"; + var func = new Function('obj', '_', tmpl); + if (data) return func(data, _); + return function(data) { + return func.call(this, data, _); + }; + }; + + // Add a "chain" function, which will delegate to the wrapper. + _.chain = function(obj) { + return _(obj).chain(); + }; + + // The OOP Wrapper + // --------------- + + // If Underscore is called as a function, it returns a wrapped object that + // can be used OO-style. This wrapper holds altered versions of all the + // underscore functions. Wrapped objects may be chained. + var wrapper = function(obj) { this._wrapped = obj; }; + + // Expose `wrapper.prototype` as `_.prototype` + _.prototype = wrapper.prototype; + + // Helper function to continue chaining intermediate results. + var result = function(obj, chain) { + return chain ? _(obj).chain() : obj; + }; + + // A method to easily add functions to the OOP wrapper. + var addToWrapper = function(name, func) { + wrapper.prototype[name] = function() { + var args = slice.call(arguments); + unshift.call(args, this._wrapped); + return result(func.apply(_, args), this._chain); + }; + }; + + // Add all of the Underscore functions to the wrapper object. + _.mixin(_); + + // Add all mutator Array functions to the wrapper. + each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) { + var method = ArrayProto[name]; + wrapper.prototype[name] = function() { + var wrapped = this._wrapped; + method.apply(wrapped, arguments); + var length = wrapped.length; + if ((name == 'shift' || name == 'splice') && length === 0) delete wrapped[0]; + return result(wrapped, this._chain); + }; + }); + + // Add all accessor Array functions to the wrapper. + each(['concat', 'join', 'slice'], function(name) { + var method = ArrayProto[name]; + wrapper.prototype[name] = function() { + return result(method.apply(this._wrapped, arguments), this._chain); + }; + }); + + // Start chaining a wrapped Underscore object. + wrapper.prototype.chain = function() { + this._chain = true; + return this; + }; + + // Extracts the result from a wrapped and chained object. + wrapper.prototype.value = function() { + return this._wrapped; + }; + +}).call(this); diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/_static/underscore.js b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/underscore.js new file mode 100644 index 00000000000..5b55f32beac --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/_static/underscore.js @@ -0,0 +1,31 @@ +// 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$.fn.autogrow.resize(textarea); + }, 500); + }) + .blur(function() { + clearInterval(textarea.interval); + }); + }); + }; + + $.fn.autogrow.resize = function(textarea) { + var lineHeight = parseInt($(textarea).css('line-height'), 10); + var lines = textarea.value.split('\n'); + var columns = textarea.cols; + var lineCount = 0; + $.each(lines, function() { + lineCount += Math.ceil(this.length / columns) || 1; + }); + var height = lineHeight * (lineCount + 1); + $(textarea).css('height', height); + }; +})(jQuery); + +(function($) { + var comp, by; + + function init() { + initEvents(); + initComparator(); + } + + function initEvents() { + $(document).on("click", 'a.comment-close', function(event) { + event.preventDefault(); + hide($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.vote', function(event) { + event.preventDefault(); + handleVote($(this)); + }); + $(document).on("click", 'a.reply', function(event) { + event.preventDefault(); + openReply($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.close-reply', function(event) { + event.preventDefault(); + closeReply($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.sort-option', function(event) { + event.preventDefault(); + handleReSort($(this)); + }); + $(document).on("click", 'a.show-proposal', function(event) { + event.preventDefault(); + showProposal($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.hide-proposal', function(event) { + event.preventDefault(); + hideProposal($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.show-propose-change', function(event) { + event.preventDefault(); + showProposeChange($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.hide-propose-change', function(event) { + event.preventDefault(); + hideProposeChange($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.accept-comment', function(event) { + event.preventDefault(); + acceptComment($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.delete-comment', function(event) { + event.preventDefault(); + deleteComment($(this).attr('id').substring(2)); + }); + $(document).on("click", 'a.comment-markup', function(event) { + event.preventDefault(); + toggleCommentMarkupBox($(this).attr('id').substring(2)); + }); + } + + /** + * Set comp, which is a comparator function used for sorting and + * inserting comments into the list. + */ + function setComparator() { + // If the first three letters are "asc", sort in ascending order + // and remove the prefix. + if (by.substring(0,3) == 'asc') { + var i = by.substring(3); + comp = function(a, b) { return a[i] - b[i]; }; + } else { + // Otherwise sort in descending order. + comp = function(a, b) { return b[by] - a[by]; }; + } + + // Reset link styles and format the selected sort option. + $('a.sel').attr('href', '#').removeClass('sel'); + $('a.by' + by).removeAttr('href').addClass('sel'); + } + + /** + * Create a comp function. If the user has preferences stored in + * the sortBy cookie, use those, otherwise use the default. + */ + function initComparator() { + by = 'rating'; // Default to sort by rating. + // If the sortBy cookie is set, use that instead. + if (document.cookie.length > 0) { + var start = document.cookie.indexOf('sortBy='); + if (start != -1) { + start = start + 7; + var end = document.cookie.indexOf(";", start); + if (end == -1) { + end = document.cookie.length; + by = unescape(document.cookie.substring(start, end)); + } + } + } + setComparator(); + } + + /** + * Show a comment div. + */ + function show(id) { + $('#ao' + id).hide(); + $('#ah' + id).show(); + var context = $.extend({id: id}, opts); + var popup = $(renderTemplate(popupTemplate, context)).hide(); + popup.find('textarea[name="proposal"]').hide(); + popup.find('a.by' + by).addClass('sel'); + var form = popup.find('#cf' + id); + form.submit(function(event) { + event.preventDefault(); + addComment(form); + }); + $('#s' + id).after(popup); + popup.slideDown('fast', function() { + getComments(id); + }); + } + + /** + * Hide a comment div. + */ + function hide(id) { + $('#ah' + id).hide(); + $('#ao' + id).show(); + var div = $('#sc' + id); + div.slideUp('fast', function() { + div.remove(); + }); + } + + /** + * Perform an ajax request to get comments for a node + * and insert the comments into the comments tree. + */ + function getComments(id) { + $.ajax({ + type: 'GET', + url: opts.getCommentsURL, + data: {node: id}, + success: function(data, textStatus, request) { + var ul = $('#cl' + id); + var speed = 100; + $('#cf' + id) + .find('textarea[name="proposal"]') + .data('source', data.source); + + if (data.comments.length === 0) { + ul.html('<li>No comments yet.</li>'); + ul.data('empty', true); + } else { + // If there are comments, sort them and put them in the list. + var comments = sortComments(data.comments); + speed = data.comments.length * 100; + appendComments(comments, ul); + ul.data('empty', false); + } + $('#cn' + id).slideUp(speed + 200); + ul.slideDown(speed); + }, + error: function(request, textStatus, error) { + showError('Oops, there was a problem retrieving the comments.'); + }, + dataType: 'json' + }); + } + + /** + * Add a comment via ajax and insert the comment into the comment tree. + */ + function addComment(form) { + var node_id = form.find('input[name="node"]').val(); + var parent_id = form.find('input[name="parent"]').val(); + var text = form.find('textarea[name="comment"]').val(); + var proposal = form.find('textarea[name="proposal"]').val(); + + if (text == '') { + showError('Please enter a comment.'); + return; + } + + // Disable the form that is being submitted. + form.find('textarea,input').attr('disabled', 'disabled'); + + // Send the comment to the server. + $.ajax({ + type: "POST", + url: opts.addCommentURL, + dataType: 'json', + data: { + node: node_id, + parent: parent_id, + text: text, + proposal: proposal + }, + success: function(data, textStatus, error) { + // Reset the form. + if (node_id) { + hideProposeChange(node_id); + } + form.find('textarea') + .val('') + .add(form.find('input')) + .removeAttr('disabled'); + var ul = $('#cl' + (node_id || parent_id)); + if (ul.data('empty')) { + $(ul).empty(); + ul.data('empty', false); + } + insertComment(data.comment); + var ao = $('#ao' + node_id); + ao.find('img').attr({'src': opts.commentBrightImage}); + if (node_id) { + // if this was a "root" comment, remove the commenting box + // (the user can get it back by reopening the comment popup) + $('#ca' + node_id).slideUp(); + } + }, + error: function(request, textStatus, error) { + form.find('textarea,input').removeAttr('disabled'); + showError('Oops, there was a problem adding the comment.'); + } + }); + } + + /** + * Recursively append comments to the main comment list and children + * lists, creating the comment tree. + */ + function appendComments(comments, ul) { + $.each(comments, function() { + var div = createCommentDiv(this); + ul.append($(document.createElement('li')).html(div)); + appendComments(this.children, div.find('ul.comment-children')); + // To avoid stagnating data, don't store the comments children in data. + this.children = null; + div.data('comment', this); + }); + } + + /** + * After adding a new comment, it must be inserted in the correct + * location in the comment tree. + */ + function insertComment(comment) { + var div = createCommentDiv(comment); + + // To avoid stagnating data, don't store the comments children in data. + comment.children = null; + div.data('comment', comment); + + var ul = $('#cl' + (comment.node || comment.parent)); + var siblings = getChildren(ul); + + var li = $(document.createElement('li')); + li.hide(); + + // Determine where in the parents children list to insert this comment. + for(var i=0; i < siblings.length; i++) { + if (comp(comment, siblings[i]) <= 0) { + $('#cd' + siblings[i].id) + .parent() + .before(li.html(div)); + li.slideDown('fast'); + return; + } + } + + // If we get here, this comment rates lower than all the others, + // or it is the only comment in the list. + ul.append(li.html(div)); + li.slideDown('fast'); + } + + function acceptComment(id) { + $.ajax({ + type: 'POST', + url: opts.acceptCommentURL, + data: {id: id}, + success: function(data, textStatus, request) { + $('#cm' + id).fadeOut('fast'); + $('#cd' + id).removeClass('moderate'); + }, + error: function(request, textStatus, error) { + showError('Oops, there was a problem accepting the comment.'); + } + }); + } + + function deleteComment(id) { + $.ajax({ + type: 'POST', + url: opts.deleteCommentURL, + data: {id: id}, + success: function(data, textStatus, request) { + var div = $('#cd' + id); + if (data == 'delete') { + // Moderator mode: remove the comment and all children immediately + div.slideUp('fast', function() { + div.remove(); + }); + return; + } + // User mode: only mark the comment as deleted + div + .find('span.user-id:first') + .text('[deleted]').end() + .find('div.comment-text:first') + .text('[deleted]').end() + .find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id + + ', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id) + .remove(); + var comment = div.data('comment'); + comment.username = '[deleted]'; + comment.text = '[deleted]'; + div.data('comment', comment); + }, + error: function(request, textStatus, error) { + showError('Oops, there was a problem deleting the comment.'); + } + }); + } + + function showProposal(id) { + $('#sp' + id).hide(); + $('#hp' + id).show(); + $('#pr' + id).slideDown('fast'); + } + + function hideProposal(id) { + $('#hp' + id).hide(); + $('#sp' + id).show(); + $('#pr' + id).slideUp('fast'); + } + + function showProposeChange(id) { + $('#pc' + id).hide(); + $('#hc' + id).show(); + var textarea = $('#pt' + id); + textarea.val(textarea.data('source')); + $.fn.autogrow.resize(textarea[0]); + textarea.slideDown('fast'); + } + + function hideProposeChange(id) { + $('#hc' + id).hide(); + $('#pc' + id).show(); + var textarea = $('#pt' + id); + textarea.val('').removeAttr('disabled'); + textarea.slideUp('fast'); + } + + function toggleCommentMarkupBox(id) { + $('#mb' + id).toggle(); + } + + /** Handle when the user clicks on a sort by link. */ + function handleReSort(link) { + var classes = link.attr('class').split(/\s+/); + for (var i=0; i<classes.length; i++) { + if (classes[i] != 'sort-option') { + by = classes[i].substring(2); + } + } + setComparator(); + // Save/update the sortBy cookie. + var expiration = new Date(); + expiration.setDate(expiration.getDate() + 365); + document.cookie= 'sortBy=' + escape(by) + + ';expires=' + expiration.toUTCString(); + $('ul.comment-ul').each(function(index, ul) { + var comments = getChildren($(ul), true); + comments = sortComments(comments); + appendComments(comments, $(ul).empty()); + }); + } + + /** + * Function to process a vote when a user clicks an arrow. + */ + function handleVote(link) { + if (!opts.voting) { + showError("You'll need to login to vote."); + return; + } + + var id = link.attr('id'); + if (!id) { + // Didn't click on one of the voting arrows. + return; + } + // If it is an unvote, the new vote value is 0, + // Otherwise it's 1 for an upvote, or -1 for a downvote. + var value = 0; + if (id.charAt(1) != 'u') { + value = id.charAt(0) == 'u' ? 1 : -1; + } + // The data to be sent to the server. + var d = { + comment_id: id.substring(2), + value: value + }; + + // Swap the vote and unvote links. + link.hide(); + $('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id) + .show(); + + // The div the comment is displayed in. + var div = $('div#cd' + d.comment_id); + var data = div.data('comment'); + + // If this is not an unvote, and the other vote arrow has + // already been pressed, unpress it. + if ((d.value !== 0) && (data.vote === d.value * -1)) { + $('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide(); + $('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show(); + } + + // Update the comments rating in the local data. + data.rating += (data.vote === 0) ? d.value : (d.value - data.vote); + data.vote = d.value; + div.data('comment', data); + + // Change the rating text. + div.find('.rating:first') + .text(data.rating + ' point' + (data.rating == 1 ? '' : 's')); + + // Send the vote information to the server. + $.ajax({ + type: "POST", + url: opts.processVoteURL, + data: d, + error: function(request, textStatus, error) { + showError('Oops, there was a problem casting that vote.'); + } + }); + } + + /** + * Open a reply form used to reply to an existing comment. + */ + function openReply(id) { + // Swap out the reply link for the hide link + $('#rl' + id).hide(); + $('#cr' + id).show(); + + // Add the reply li to the children ul. + var div = $(renderTemplate(replyTemplate, {id: id})).hide(); + $('#cl' + id) + .prepend(div) + // Setup the submit handler for the reply form. + .find('#rf' + id) + .submit(function(event) { + event.preventDefault(); + addComment($('#rf' + id)); + closeReply(id); + }) + .find('input[type=button]') + .click(function() { + closeReply(id); + }); + div.slideDown('fast', function() { + $('#rf' + id).find('textarea').focus(); + }); + } + + /** + * Close the reply form opened with openReply. + */ + function closeReply(id) { + // Remove the reply div from the DOM. + $('#rd' + id).slideUp('fast', function() { + $(this).remove(); + }); + + // Swap out the hide link for the reply link + $('#cr' + id).hide(); + $('#rl' + id).show(); + } + + /** + * Recursively sort a tree of comments using the comp comparator. + */ + function sortComments(comments) { + comments.sort(comp); + $.each(comments, function() { + this.children = sortComments(this.children); + }); + return comments; + } + + /** + * Get the children comments from a ul. If recursive is true, + * recursively include childrens' children. + */ + function getChildren(ul, recursive) { + var children = []; + ul.children().children("[id^='cd']") + .each(function() { + var comment = $(this).data('comment'); + if (recursive) + comment.children = getChildren($(this).find('#cl' + comment.id), true); + children.push(comment); + }); + return children; + } + + /** Create a div to display a comment in. */ + function createCommentDiv(comment) { + if (!comment.displayed && !opts.moderator) { + return $('<div class="moderate">Thank you! Your comment will show up ' + + 'once it is has been approved by a moderator.</div>'); + } + // Prettify the comment rating. + comment.pretty_rating = comment.rating + ' point' + + (comment.rating == 1 ? '' : 's'); + // Make a class (for displaying not yet moderated comments differently) + comment.css_class = comment.displayed ? '' : ' moderate'; + // Create a div for this comment. + var context = $.extend({}, opts, comment); + var div = $(renderTemplate(commentTemplate, context)); + + // If the user has voted on this comment, highlight the correct arrow. + if (comment.vote) { + var direction = (comment.vote == 1) ? 'u' : 'd'; + div.find('#' + direction + 'v' + comment.id).hide(); + div.find('#' + direction + 'u' + comment.id).show(); + } + + if (opts.moderator || comment.text != '[deleted]') { + div.find('a.reply').show(); + if (comment.proposal_diff) + div.find('#sp' + comment.id).show(); + if (opts.moderator && !comment.displayed) + div.find('#cm' + comment.id).show(); + if (opts.moderator || (opts.username == comment.username)) + div.find('#dc' + comment.id).show(); + } + return div; + } + + /** + * A simple template renderer. Placeholders such as <%id%> are replaced + * by context['id'] with items being escaped. 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\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/ppapi.html b/Build/source/texk/web2c/luatexdir/luapplib/html/ppapi.html new file mode 100644 index 00000000000..8ba0febca93 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/ppapi.html @@ -0,0 +1,1028 @@ + + +<!doctype html> + +<html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> + <title>pplib — pplib 0.1 documentation</title> + <link rel="stylesheet" href="_static/bizstyle.css" type="text/css" /> + <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> + <script type="text/javascript" src="_static/documentation_options.js"></script> + <script type="text/javascript" src="_static/jquery.js"></script> + <script type="text/javascript" src="_static/underscore.js"></script> + <script type="text/javascript" src="_static/doctools.js"></script> + <script type="text/javascript" src="_static/bizstyle.js"></script> + <link rel="index" title="Index" href="genindex.html" /> + <link rel="search" title="Search" href="search.html" /> + <link rel="next" title="Examples" href="ppcode.html" /> + <link rel="prev" title="pplib" href="pplib.html" /> + <meta name="viewport" content="width=device-width,initial-scale=1.0"> + <!--[if lt IE 9]> + <script type="text/javascript" src="_static/css3-mediaqueries.js"></script> + <![endif]--> + </head><body> + <div class="related" role="navigation" aria-label="related navigation"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + accesskey="I">index</a></li> + <li class="right" > + <a href="ppcode.html" title="Examples" + accesskey="N">next</a> |</li> + <li class="right" > + <a href="pplib.html" title="pplib" + accesskey="P">previous</a> |</li> + <li class="nav-item nav-item-0"><a href="pplib.html">pplib 0.1 documentation</a> »</li> + </ul> + </div> + <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> + <div class="sphinxsidebarwrapper"> + <h3><a href="pplib.html">Table Of Contents</a></h3> + <ul> +<li><a class="reference internal" href="#"><code class="docutils literal notranslate"><span class="pre">pplib</span></code></a></li> +<li><a class="reference internal" href="#c-api">C-API</a><ul> +<li><a class="reference internal" href="#types">Types</a></li> +<li><a class="reference internal" href="#object">Object</a></li> +<li><a class="reference internal" href="#names">Names</a></li> +<li><a class="reference internal" href="#string">String</a></li> +<li><a class="reference internal" href="#array">Array</a></li> +<li><a class="reference internal" href="#dict">Dict</a></li> +<li><a class="reference internal" href="#stream">Stream</a></li> +<li><a class="reference internal" href="#filters">Filters</a></li> +<li><a class="reference internal" href="#ref">Ref</a></li> +<li><a class="reference internal" href="#xref">XRef</a></li> +<li><a class="reference internal" href="#pdf">PDF</a></li> +<li><a class="reference internal" href="#encryption">Encryption</a></li> +<li><a class="reference internal" href="#pages">Pages</a></li> +<li><a class="reference internal" href="#contents">Contents</a></li> +<li><a class="reference internal" href="#boxes">Boxes</a></li> +<li><a class="reference internal" href="#transforms">Transforms</a></li> +<li><a class="reference internal" href="#errors-handling">Errors handling</a></li> +</ul> +</li> +</ul> + + <h4>Previous topic</h4> + <p class="topless"><a href="pplib.html" + title="previous chapter">pplib</a></p> + <h4>Next topic</h4> + <p class="topless"><a href="ppcode.html" + title="next chapter">Examples</a></p> + <div role="note" aria-label="source link"> + <h3>This Page</h3> + <ul class="this-page-menu"> + <li><a href="_sources/ppapi.rst.txt" + rel="nofollow">Show Source</a></li> + </ul> + </div> +<div id="searchbox" style="display: none" role="search"> + <h3>Quick search</h3> + <div class="searchformwrapper"> + <form class="search" action="search.html" method="get"> + <input type="text" name="q" /> + <input type="submit" value="Go" /> + <input type="hidden" name="check_keywords" value="yes" /> + <input type="hidden" name="area" value="default" /> + </form> + </div> +</div> +<script type="text/javascript">$('#searchbox').show(0);</script> + </div> + </div> + + <div class="document"> + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body" role="main"> + + <div class="section" id="pplib"> +<h1><code class="docutils literal notranslate"><span class="pre">pplib</span></code><a class="headerlink" href="#pplib" title="Permalink to this headline">¶</a></h1> +<p><code class="docutils literal notranslate"><span class="pre">pplib</span></code> is a library for raw PDF access. It parses PDF documents and provides an interface to access document structures in C.</p> +</div> +<div class="section" id="c-api"> +<h1>C-API<a class="headerlink" href="#c-api" title="Permalink to this headline">¶</a></h1> +<div class="section" id="types"> +<h2>Types<a class="headerlink" href="#types" title="Permalink to this headline">¶</a></h2> +<p><code class="docutils literal notranslate"><span class="pre">pplib</span></code> defines several C-types to represent PDF types:</p> +<ul class="simple"> +<li><code class="docutils literal notranslate"><span class="pre">ppint</span></code> - signed integer (<code class="docutils literal notranslate"><span class="pre">int64_t</span></code>)</li> +<li><code class="docutils literal notranslate"><span class="pre">ppnum</span></code> - real number (double)</li> +<li><code class="docutils literal notranslate"><span class="pre">ppname</span></code> - PDF name</li> +<li><code class="docutils literal notranslate"><span class="pre">ppstring</span></code> - PDF string</li> +<li><code class="docutils literal notranslate"><span class="pre">pparray</span></code> - PDF array</li> +<li><code class="docutils literal notranslate"><span class="pre">ppdict</span></code> - PDF dict</li> +<li><code class="docutils literal notranslate"><span class="pre">ppstream</span></code> - PDF stream</li> +<li><code class="docutils literal notranslate"><span class="pre">ppref</span></code> - PDF indirect reference</li> +<li><code class="docutils literal notranslate"><span class="pre">ppobj</span></code> - a container of all above</li> +</ul> +<p>Among <code class="docutils literal notranslate"><span class="pre">ppint</span></code> and <code class="docutils literal notranslate"><span class="pre">ppnum</span></code>, we also use <code class="docutils literal notranslate"><span class="pre">ppuint</span></code> - unsigned integer (machine word, alias to <code class="docutils literal notranslate"><span class="pre">size_t</span></code>).</p> +<p>Other API types:</p> +<ul class="simple"> +<li><code class="docutils literal notranslate"><span class="pre">ppdoc</span></code> - PDF document</li> +<li><code class="docutils literal notranslate"><span class="pre">ppxref</span></code> - cross-references table</li> +<li><code class="docutils literal notranslate"><span class="pre">ppcontext</span></code> - … later</li> +<li><code class="docutils literal notranslate"><span class="pre">pprect</span></code> - rectangle</li> +<li><code class="docutils literal notranslate"><span class="pre">ppmatrix</span></code> - matrix</li> +</ul> +<p>Integer, number, name and string are treated as simple types. +Names and strings are actually C-structures, but exposed to API as typedefs to <code class="docutils literal notranslate"><span class="pre">const</span> <span class="pre">char</span> <span class="pre">*</span></code>. +Other types (array, dict, stream, reference, object container, xref, PDF) are C-structures, +and you operate it their pointers. So when you declare a simple type variable you say:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppuint</span> <span class="n">u</span><span class="p">;</span> +<span class="n">ppnum</span> <span class="n">n</span><span class="p">;</span> +<span class="n">ppname</span> <span class="n">name</span><span class="p">;</span> +<span class="n">ppstring</span> <span class="n">string</span><span class="p">;</span> +<span class="o">...</span> +</pre></div> +</div> +<p>And when you declare a compound type you operate on pointers:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span><span class="n">obj</span><span class="p">;</span> +<span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">;</span> +<span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> +<span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">;</span> +<span class="n">ppref</span> <span class="o">*</span><span class="n">ref</span><span class="p">;</span> +<span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">;</span> +</pre></div> +</div> +<p>Some of those C-types are defined in library header <code class="docutils literal notranslate"><span class="pre">ppapi.h</span></code> (complete types). Some others are incomplete +(eg. you can’t say <code class="docutils literal notranslate"><span class="pre">sizeof(ppdoc)</span></code> or <code class="docutils literal notranslate"><span class="pre">sizeof(ppxref)</span></code>). This is to avoid unnecesary dependencies in +the header. [At some points it’s not clear to me what to hide and what to expose, will see.] The library itself +uses <code class="docutils literal notranslate"><span class="pre">pplib.h</span></code> but for auxilary applications including a standalone <code class="docutils literal notranslate"><span class="pre">ppapi.h</span></code> header should be enough.</p> +<p><code class="docutils literal notranslate"><span class="pre">pplib</span></code> was designed having <strong>read-only</strong> PDF access in mind. Even if some structure is completelly exposed, +so that you can directly access its members, you should treat them as read-only. I don’t make them <code class="docutils literal notranslate"><span class="pre">const</span></code> because +then all variable declarations would need to be <code class="docutils literal notranslate"><span class="pre">const</span></code>, which is annoying, and I’d need some trickery in the library +internals to unconst. Besides, nothing is really const for C type casts.</p> +</div> +<div class="section" id="object"> +<h2>Object<a class="headerlink" href="#object" title="Permalink to this headline">¶</a></h2> +<p>A common container for all elementary PDF object types is <code class="docutils literal notranslate"><span class="pre">ppobj</span></code> structure. <code class="docutils literal notranslate"><span class="pre">ppobj</span></code> has a type identifier +(integer) and union of values:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">struct</span> <span class="n">ppobj</span> <span class="p">{</span> + <span class="n">ppobjtp</span> <span class="nb">type</span><span class="p">;</span> + <span class="n">union</span> <span class="p">{</span> + <span class="n">ppint</span> <span class="n">integer</span><span class="p">;</span> + <span class="n">ppnum</span> <span class="n">number</span><span class="p">;</span> + <span class="n">ppname</span> <span class="n">name</span><span class="p">;</span> + <span class="n">ppstring</span> <span class="n">string</span><span class="p">;</span> + <span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">;</span> + <span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> + <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">;</span> + <span class="n">ppref</span> <span class="o">*</span><span class="n">ref</span><span class="p">;</span> + <span class="n">void</span> <span class="o">*</span><span class="nb">any</span><span class="p">;</span> + <span class="p">};</span> +<span class="p">};</span> +</pre></div> +</div> +<p>Object type is one of constants (enum):</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">PPNONE</span> +<span class="n">PPNULL</span> +<span class="n">PPBOOL</span> +<span class="n">PPINT</span> +<span class="n">PPNUM</span> +<span class="n">PPNAME</span> +<span class="n">PPSTRING</span> +<span class="n">PPARRAY</span> +<span class="n">PPDICT</span> +<span class="n">PPSTREAM</span> +<span class="n">PPREF</span> +</pre></div> +</div> +<p>The type determines the structure member you’re allowed to access:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span><span class="n">obj</span><span class="p">;</span> +<span class="o">...</span> +<span class="n">switch</span> <span class="p">(</span><span class="n">obj</span><span class="o">-></span><span class="nb">type</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">case</span> <span class="n">PPNONE</span><span class="p">:</span> <span class="o">//</span> <span class="n">shouldn</span><span class="s1">'t actually happen, indicates some failure</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPNULL</span><span class="p">:</span> <span class="o">//</span> <span class="n">valid</span> <span class="n">PDF</span> <span class="n">null</span> <span class="nb">object</span><span class="p">,</span> <span class="n">no</span> <span class="n">value</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPBOOL</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">integer</span> <span class="p">(</span><span class="n">ppint</span><span class="p">),</span> <span class="n">value</span> <span class="mi">0</span> <span class="ow">or</span> <span class="mi">1</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPINT</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">integer</span> <span class="p">(</span><span class="n">ppint</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPNUM</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">number</span> <span class="p">(</span><span class="n">ppnum</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPNAME</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">name</span> <span class="p">(</span><span class="n">ppname</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPSTRING</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">string</span> <span class="p">(</span><span class="n">ppstring</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPARRAY</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">array</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPDICT</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="nb">dict</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPSTREAM</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">stream</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPREF</span><span class="p">:</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">obj</span><span class="o">-></span><span class="n">ref</span> <span class="p">(</span><span class="n">ppref</span> <span class="o">*</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> +<span class="p">}</span> +</pre></div> +</div> +<p>More often then not you know exactly what type of object value is expected, in which case +you may use one of the following macros:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">//</span> <span class="n">returns</span> <span class="mi">1</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPNULL</span> +<span class="nb">int</span> <span class="n">ppobj_get_null</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> \ + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPBOOL</span><span class="p">,</span> <span class="n">sets</span> <span class="nb">int</span> <span class="n">v</span> <span class="n">to</span> <span class="mi">0</span> <span class="ow">or</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">returns</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span> <span class="n">otherwise</span> +<span class="nb">int</span> <span class="n">ppobj_get_bool</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPINT</span><span class="p">,</span> <span class="n">sets</span> <span class="n">ppint</span> <span class="n">v</span> <span class="ow">and</span> <span class="n">returns</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span> <span class="n">otherwise</span> +<span class="nb">int</span> <span class="n">ppobj_get_int</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPINT</span> <span class="ow">and</span> <span class="o">>=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">sets</span> <span class="n">ppuint</span> <span class="n">v</span> <span class="ow">and</span> <span class="n">returns</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span> <span class="n">otherwise</span> +<span class="nb">int</span> <span class="n">ppobj_get_uint</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPNUM</span> <span class="ow">or</span> <span class="n">PPINT</span><span class="p">,</span> <span class="n">sets</span> <span class="n">ppnum</span> <span class="n">v</span> <span class="ow">and</span> <span class="n">returns</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span> <span class="n">otherwise</span> +<span class="nb">int</span> <span class="n">ppobj_get_num</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPNAME</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">name</span><span class="p">,</span> <span class="n">NULL</span> <span class="n">otherwise</span> +<span class="n">ppname</span> <span class="n">ppobj_get_name</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPSTRING</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">string</span><span class="p">,</span> <span class="n">NULL</span> <span class="n">otherwise</span> +<span class="n">ppstring</span> <span class="n">ppobj_get_string</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPARRAY</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">array</span><span class="p">,</span> <span class="n">NULL</span> <span class="n">otherwise</span> +<span class="n">pparray</span> <span class="o">*</span> <span class="n">ppobj_get_array</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPDICT</span> <span class="n">returns</span> <span class="n">the</span> <span class="nb">dict</span><span class="p">,</span> <span class="n">NULL</span> <span class="n">otherwise</span> +<span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppobj_get_dict</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPSTREAM</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">stream</span><span class="p">,</span> <span class="n">NULL</span> <span class="n">otherwise</span> +<span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppobj_get_stream</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> + +<span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPREF</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">reference</span><span class="p">,</span> <span class="n">NULL</span> <span class="n">otherwise</span> +<span class="n">ppref</span> <span class="o">*</span> <span class="n">ppobj_get_ref</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> +</pre></div> +</div> +<p>Note the coercion from integer to real number, but not reverse. In practise, whenever you expect a real number, +you should also handle integer (eg. ‘1’ used instead of ‘1.0’).</p> +<p>It is a common case that the object is given as an indirect reference, but what you actually +want is not the reference, but the object referred by it. Here is a helper for it:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">//</span> <span class="k">if</span> <span class="n">o</span><span class="o">-></span><span class="nb">type</span> <span class="ow">is</span> <span class="n">PPREF</span><span class="p">,</span> <span class="n">returns</span> <span class="n">what</span> <span class="n">the</span> <span class="n">reference</span> <span class="n">points</span><span class="p">,</span> <span class="n">otherwise</span> <span class="n">returns</span> <span class="n">o</span> +<span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppobj_rget_obj</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> +</pre></div> +</div> +<p>Also every <code class="docutils literal notranslate"><span class="pre">ppobj_get_*</span></code> macro has <code class="docutils literal notranslate"><span class="pre">ppobj_rget_*</span></code> counterpart that makes a check +for the expected type, but if the object is PPREF, it jumps to the target object. +So for example <code class="docutils literal notranslate"><span class="pre">ppobj_rget_dict(obj)</span></code> will return dict if <code class="docutils literal notranslate"><span class="pre">obj</span></code> is of type PPDICT +or if it is of type PPREF and <code class="docutils literal notranslate"><span class="pre">obj->ref</span></code> hosts an object of type PPDICT.</p> +</div> +<div class="section" id="names"> +<h2>Names<a class="headerlink" href="#names" title="Permalink to this headline">¶</a></h2> +<p>PDF names are represented as <code class="docutils literal notranslate"><span class="pre">ppname</span></code>. +I find it convenient to have <code class="docutils literal notranslate"><span class="pre">ppname</span></code> type pretending <code class="docutils literal notranslate"><span class="pre">const</span> <span class="pre">char</span> <span class="pre">*</span></code>. This allows to use <code class="docutils literal notranslate"><span class="pre">ppname</span></code> +in all C-style string functions like <code class="docutils literal notranslate"><span class="pre">printf("%s",</span> <span class="pre">name)</span></code>.</p> +<p>Be aware, however, that <code class="docutils literal notranslate"><span class="pre">ppname</span></code> is actually a C-structure. It is perfectly ok to cast <code class="docutils literal notranslate"><span class="pre">ppname</span></code> to <code class="docutils literal notranslate"><span class="pre">const</span> <span class="pre">char</span> <span class="pre">*</span></code>:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppname</span> <span class="n">name</span><span class="p">;</span> +<span class="o">...</span> +<span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="p">)</span><span class="n">name</span><span class="p">;</span> +</pre></div> +</div> +<p>But reverse is forbidden:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">cstr</span> <span class="o">=</span> <span class="s2">"cstring"</span><span class="p">;</span> +<span class="o">...</span> +<span class="p">(</span><span class="n">ppname</span><span class="p">)</span><span class="n">cstr</span><span class="p">;</span> <span class="o">//</span> <span class="n">expect</span> <span class="n">segmentation</span> <span class="n">fault</span> <span class="n">soon</span> +</pre></div> +</div> +<p>For convenient use in C, names are <code class="docutils literal notranslate"><span class="pre">'\0'</span></code> terminated. But to get the length of name better always use +<code class="docutils literal notranslate"><span class="pre">ppname_size()</span></code> macro. <code class="docutils literal notranslate"><span class="pre">ppname</span></code> object knows its size, don’t use <code class="docutils literal notranslate"><span class="pre">strlen()</span></code>:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">size_t</span> <span class="n">ppname_size</span><span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">);</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">length</span> <span class="n">of</span> <span class="n">name</span> <span class="ow">in</span> <span class="nb">bytes</span> +</pre></div> +</div> +<p>In current implementation names are not hashed anyhow, so name-to-name comparison is not smarter than <code class="docutils literal notranslate"><span class="pre">memcmp()</span></code>. +Use macros:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">ppname_is</span><span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">,</span> <span class="s2">"literal"</span><span class="p">);</span> <span class="o">//</span> <span class="n">to</span> <span class="n">compare</span> <span class="n">ppname</span> <span class="k">with</span> <span class="n">C</span><span class="o">-</span><span class="n">literal</span> <span class="n">string</span> +<span class="nb">int</span> <span class="n">ppname_eq</span><span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">,</span> <span class="n">ppname</span> <span class="n">other</span><span class="p">);</span> <span class="o">//</span> <span class="n">to</span> <span class="n">compare</span> <span class="n">ppname</span> <span class="k">with</span> <span class="n">a</span> <span class="n">different</span> <span class="n">name</span> +</pre></div> +</div> +<p>If you’ll use <code class="docutils literal notranslate"><span class="pre">pplib</span></code> to parse contents streams, you may need to distinguish names from operators +(more precisely executable names). Names in PDF are preceeded by ‘/’, executable names aren’t. In both +cases PDF parser will produce <code class="docutils literal notranslate"><span class="pre">ppname</span></code> but can be distingushed with:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">ppname_exec</span><span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">non</span><span class="o">-</span><span class="n">zero</span> <span class="k">if</span> <span class="n">name</span> <span class="ow">is</span> <span class="n">executable</span> +</pre></div> +</div> +<p>Names are kept in their raw form, with possible PDF specific escapes (in text below we call it <strong>encoded</strong> form). +Leading ‘/’ is omitted, though. One may need a decoded name, with no PDF escapes. +A pair of functions provides a simple interface to switch between those two forms:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppname</span> <span class="n">ppname_decoded</span> <span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">decoded</span> <span class="p">(</span><span class="n">unescaped</span><span class="p">)</span> <span class="n">form</span> <span class="n">of</span> <span class="n">the</span> <span class="n">name</span> +<span class="n">ppname</span> <span class="n">ppname_encoded</span> <span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">encoded</span> <span class="p">(</span><span class="n">escaped</span><span class="p">)</span> <span class="n">form</span> <span class="n">of</span> <span class="n">the</span> <span class="n">name</span> +</pre></div> +</div> +<p>In pretty most cases PDF names contains only letters (no special characters, no escapes), so decoded and encoded forms are identical. +In that case both functions simply return the argument. It is ok to call <code class="docutils literal notranslate"><span class="pre">ppname_decoded()</span></code> on already decoded form +and <code class="docutils literal notranslate"><span class="pre">ppname_encoded()</span></code> on already encoded form. Both forms are produced by PDF objects parser, so accessing <code class="docutils literal notranslate"><span class="pre">ppname</span></code> alter ego +in whatever direction needs no extra decoding or allocation costs.</p> +</div> +<div class="section" id="string"> +<h2>String<a class="headerlink" href="#string" title="Permalink to this headline">¶</a></h2> +<p>PDF strings have the same internal construction as names, so most of names description above applies to strings as well. +<code class="docutils literal notranslate"><span class="pre">ppstring</span></code> is a typedef of <code class="docutils literal notranslate"><span class="pre">const</span> <span class="pre">char</span> <span class="pre">*</span></code>, roughly <code class="docutils literal notranslate"><span class="pre">'\0'</span></code> terminiated C-string. To get the size of the string:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">size_t</span> <span class="n">ppstring_size</span><span class="p">(</span><span class="n">ppstring</span> <span class="n">string</span><span class="p">);</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">length</span> <span class="n">of</span> <span class="n">the</span> <span class="n">string</span> <span class="ow">in</span> <span class="nb">bytes</span> +</pre></div> +</div> +<p>Strings are provided in their raw form, preserving PDF specific escapes, but with no +<code class="docutils literal notranslate"><span class="pre">()</span></code> or <code class="docutils literal notranslate"><span class="pre"><></span></code> delims. To distinguish plain strings from hex strings:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">ppstring_hex</span><span class="p">(</span><span class="n">ppstring</span> <span class="n">string</span><span class="p">);</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">non</span> <span class="n">zero</span> <span class="k">if</span> <span class="nb">hex</span> <span class="n">string</span> +</pre></div> +</div> +<p>Or if you prefer:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>switch (ppstring_type(string)) +{ + case PPSTRING_PLAIN: // literal string, surrounded by ``(`` and ``)`` in PDF + break; + case PPSTRING_BASE16: // hex string, surrounded by ``<`` and ``>`` in PDF + break; + case PPSTRING_BASE85: // base85 string surrounded by ``<~`` and ``~>`` in PDF + break; +} +</pre></div> +</div> +<p>The last is actually Postscript specific, not used in PDF, but I think it might appear in contents streams… +No matter how the string is given in PDF (plain or hex), here are two functions to +switch between encoded and decoded strings forms:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstring</span> <span class="n">ppstring_decoded</span> <span class="p">(</span><span class="n">ppstring</span> <span class="n">string</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">decoded</span> <span class="n">string</span> <span class="n">possibly</span> <span class="k">with</span> <span class="n">PDF</span> <span class="n">escapes</span> +<span class="n">ppstring</span> <span class="n">ppstring_encoded</span> <span class="p">(</span><span class="n">ppstring</span> <span class="n">string</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">encoded</span> <span class="n">string</span> <span class="k">with</span> <span class="n">no</span> <span class="n">PDF</span> <span class="n">escapes</span> +</pre></div> +</div> +<p>For hex strings, encoded form contains hex digits, while decoded form contains arbitrary bytes (the result of hex decoding). +Plain strings usually contains printable ASCII characters, but they might contain any binary data. +As with names, objects parser produces both forms. The raw form with PDF escapes (or raw hex form) is considered the main one. +Eg. when you access <code class="docutils literal notranslate"><span class="pre">obj->string</span></code> you always get the encoded form. At any moment you can switch to its alter ego.</p> +<p>No matter if the string is plain or hex, if its first two bytes (decoded) are UTF16 BOM, the string +is considered unicode. <code class="docutils literal notranslate"><span class="pre">ppstring</span></code> object <em>knows</em> it is unicode or not:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">switch</span> <span class="p">(</span><span class="n">ppstring_utf</span><span class="p">(</span><span class="n">string</span><span class="p">))</span> +<span class="p">{</span> + <span class="n">case</span> <span class="n">PPSTRING_UTF16LE</span><span class="p">:</span> <span class="o">//</span> <span class="n">unicode</span> <span class="n">string</span><span class="p">,</span> <span class="n">utf16le</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPSTRING_UTF16BE</span><span class="p">:</span> <span class="o">//</span> <span class="n">unicode</span> <span class="n">string</span><span class="p">,</span> <span class="n">utf16be</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">default</span><span class="p">:</span> <span class="o">//</span> <span class="n">no</span> <span class="n">unicode</span> +<span class="p">}</span> +</pre></div> +</div> +<p>Or simply:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="n">ppstring_utf</span><span class="p">(</span><span class="n">string</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> + <span class="o">//</span> <span class="n">handle</span> <span class="n">unicode</span> <span class="n">string</span> +<span class="p">}</span> +</pre></div> +</div> +<p>If the string is unicode, BOM remains the part of the string – <code class="docutils literal notranslate"><span class="pre">pplib</span></code> parser does not strip it. +Unicode or not, encoded or decoded, strings are always C-arrays of bytes and <code class="docutils literal notranslate"><span class="pre">ppstring_size()</span></code> +always returns the size in bytes.</p> +</div> +<div class="section" id="array"> +<h2>Array<a class="headerlink" href="#array" title="Permalink to this headline">¶</a></h2> +<p>PDF arrays are represented as <code class="docutils literal notranslate"><span class="pre">pparray</span></code> type, which is C-array of <code class="docutils literal notranslate"><span class="pre">ppobj</span></code> structures. +To get the size:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">size_t</span> <span class="n">pparray_size</span><span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">number</span> <span class="n">of</span> <span class="n">array</span> <span class="n">items</span> +</pre></div> +</div> +<p>To get <code class="docutils literal notranslate"><span class="pre">ppobj</span> <span class="pre">*</span></code> at a given index:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span> <span class="n">pparray_at</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">index</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="p">(</span><span class="n">no</span> <span class="n">index</span> <span class="n">check</span><span class="p">)</span> +<span class="n">ppobj</span> <span class="o">*</span> <span class="n">pparray_get</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">index</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="ow">or</span> <span class="n">NULL</span> <span class="p">(</span><span class="k">with</span> <span class="n">index</span> <span class="n">check</span><span class="p">)</span> +<span class="n">ppobj</span> <span class="o">*</span> <span class="n">pparray_get_obj</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> <span class="o">//</span> <span class="n">function</span> <span class="n">equiv</span> <span class="n">to</span> <span class="n">pparray_get</span><span class="p">()</span> +</pre></div> +</div> +<p>Iterating over array elements:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">;</span> +<span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">size</span><span class="p">;</span> +<span class="n">ppobj</span> <span class="o">*</span><span class="n">obj</span><span class="p">;</span> +<span class="k">for</span> <span class="p">(</span><span class="n">size</span> <span class="o">=</span> <span class="n">pparray_size</span><span class="p">(</span><span class="n">array</span><span class="p">),</span> <span class="n">pparray_first</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">obj</span><span class="p">);</span> <span class="n">index</span> <span class="o"><</span> <span class="n">size</span><span class="p">;</span> <span class="n">pparray_next</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="n">obj</span><span class="p">))</span> +<span class="p">{</span> + <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">index</span> <span class="ow">and</span> <span class="n">obj</span> +<span class="p">}</span> +</pre></div> +</div> +<p>There is no magic first/next macros, just iteration over pointers. One could also use something like:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">for</span> <span class="p">(</span><span class="n">index</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">size</span> <span class="o">=</span> <span class="n">array</span><span class="o">-></span><span class="n">size</span><span class="p">;</span> <span class="n">index</span> <span class="o"><</span> <span class="n">size</span><span class="p">;</span> <span class="o">++</span><span class="n">index</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">obj</span> <span class="o">=</span> <span class="n">pparray_at</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">index</span><span class="p">);</span> + <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">index</span> <span class="ow">and</span> <span class="n">obj</span> +<span class="p">}</span> +</pre></div> +</div> +<p>When getting values from array and expecting a result of known type, use one of the following:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">pparray_get_bool</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">boolean</span> <span class="n">value</span> +<span class="nb">int</span> <span class="n">pparray_get_int</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppint</span> <span class="n">value</span> +<span class="nb">int</span> <span class="n">pparray_get_uint</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppuint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppuint</span> <span class="n">value</span> +<span class="nb">int</span> <span class="n">pparray_get_num</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppnum</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppnum</span> <span class="n">value</span> +<span class="n">ppname</span> <span class="n">pparray_get_name</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppname</span> <span class="n">value</span> +<span class="n">ppstring</span> <span class="n">pparray_get_string</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppstring</span> <span class="n">value</span> +<span class="n">pparray</span> <span class="o">*</span> <span class="n">pparray_get_array</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">pparray</span> <span class="o">*</span> <span class="n">value</span> +<span class="n">ppdict</span> <span class="o">*</span> <span class="n">pparray_get_dict</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">value</span> +<span class="n">ppref</span> <span class="o">*</span> <span class="n">pparray_get_ref</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> <span class="o">//</span> <span class="n">get</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">value</span> +</pre></div> +</div> +<p>As with <code class="docutils literal notranslate"><span class="pre">ppobj_get_*</span></code> suite, numeric types getters set the value of a given type and returns 1, if the type matches. +Otherwise sets nothing and returns 0. Other getters return the value if the type matches, or NULL.</p> +<p>Every function from <code class="docutils literal notranslate"><span class="pre">pparray_get_*</span></code> suite have its <code class="docutils literal notranslate"><span class="pre">pparray_rget_*</span></code> counterpart that +that dereferences indirect objects (as explained for <code class="docutils literal notranslate"><span class="pre">ppobj_rget_*</span></code> getters). Note that +there is no <code class="docutils literal notranslate"><span class="pre">pparray_get_stream()</span></code> function, as streams in PDF are always indirect. +To get the stream from array use:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream</span> <span class="o">*</span> <span class="n">pparray_rget_stream</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +</pre></div> +</div> +</div> +<div class="section" id="dict"> +<h2>Dict<a class="headerlink" href="#dict" title="Permalink to this headline">¶</a></h2> +<p>PDF dicts are represented as <code class="docutils literal notranslate"><span class="pre">ppdict</span></code> structure, which is C-array of <code class="docutils literal notranslate"><span class="pre">ppobj</span></code> with parallel +C-array of <code class="docutils literal notranslate"><span class="pre">ppname</span></code> pointers. To get the size of a dict:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">size_t</span> <span class="n">ppdict_size</span><span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">the</span> <span class="n">number</span> <span class="n">of</span> <span class="n">key</span><span class="o">-</span><span class="n">val</span> <span class="n">pairs</span> +</pre></div> +</div> +<p>To get the value at a given index (integer):</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppdict_at</span><span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">index</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">no</span> <span class="n">index</span> <span class="n">check</span> +</pre></div> +</div> +<p>To get the name (key) at a given index:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppname</span> <span class="n">ppdict_key</span><span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">index</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">no</span> <span class="n">index</span> <span class="n">check</span> +</pre></div> +</div> +<p>To iterate over dict key-val pairs:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> +<span class="n">ppname</span> <span class="o">*</span><span class="n">pkey</span><span class="p">;</span> +<span class="n">ppobj</span> <span class="o">*</span><span class="n">obj</span><span class="p">;</span> + +<span class="k">for</span> <span class="p">(</span><span class="n">ppdict_first</span><span class="p">(</span><span class="nb">dict</span><span class="p">,</span> <span class="n">pkey</span><span class="p">,</span> <span class="n">obj</span><span class="p">);</span> <span class="o">*</span><span class="n">pkey</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> <span class="n">ppdict_next</span><span class="p">(</span><span class="n">pkey</span><span class="p">,</span> <span class="n">obj</span><span class="p">))</span> +<span class="p">{</span> + <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="o">*</span><span class="n">pkey</span> <span class="ow">and</span> <span class="n">obj</span> +<span class="p">}</span> +</pre></div> +</div> +<p>There is no magic in first/next macros, just iteration through keys and values lists pointers. +For convenient iteration, a list of keys is terminated with NULL, so in the code above <code class="docutils literal notranslate"><span class="pre">*pkey</span> <span class="pre">!=</span> <span class="pre">NULL</span></code> +is used as the loop condition. One may also iterate via indices:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> +<span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">size</span><span class="p">;</span> +<span class="n">ppname</span> <span class="n">key</span><span class="p">;</span> +<span class="n">ppobj</span> <span class="o">*</span><span class="n">obj</span><span class="p">;</span> +<span class="k">for</span> <span class="p">(</span><span class="n">index</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">size</span> <span class="o">=</span> <span class="n">ppdict_size</span><span class="p">(</span><span class="nb">dict</span><span class="p">);</span> <span class="n">index</span> <span class="o"><</span> <span class="n">size</span><span class="p">;</span> <span class="o">++</span><span class="n">index</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">key</span> <span class="o">=</span> <span class="n">ppdict_key</span><span class="p">(</span><span class="nb">dict</span><span class="p">,</span> <span class="n">index</span><span class="p">);</span> + <span class="n">obj</span> <span class="o">=</span> <span class="n">ppdict_at</span><span class="p">(</span><span class="nb">dict</span><span class="p">,</span> <span class="n">index</span><span class="p">);</span> + <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">key</span> <span class="ow">and</span> <span class="n">obj</span> +<span class="p">}</span> +</pre></div> +</div> +<p>To get the object associated with a given name, use one of the following:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppdict_get_obj</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="nb">int</span> <span class="n">ppdict_get_bool</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="nb">int</span> <span class="n">ppdict_get_int</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="nb">int</span> <span class="n">ppdict_get_uint</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppuint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="nb">int</span> <span class="n">ppdict_get_num</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppnum</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">ppname</span> <span class="n">ppdict_get_name</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">ppstring</span> <span class="n">ppdict_get_string</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">pparray</span> <span class="o">*</span> <span class="n">ppdict_get_array</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppdict_get_dict</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdict_get_ref</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +</pre></div> +</div> +<p>Note that all getters accepts <code class="docutils literal notranslate"><span class="pre">const</span> <span class="pre">char</span> <span class="pre">*</span></code> as key, so it is ok to say:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdict_rget_dict</span><span class="p">(</span><span class="nb">dict</span><span class="p">,</span> <span class="s2">"Resources"</span><span class="p">);</span> +</pre></div> +</div> +<p>as well as:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdic_rget_dict</span><span class="p">(</span><span class="nb">dict</span><span class="p">,</span> <span class="n">name</span><span class="p">);</span> <span class="o">//</span> <span class="n">ppname</span> <span class="n">name</span> +</pre></div> +</div> +<p>Every <code class="docutils literal notranslate"><span class="pre">ppdict_get_*</span></code> getter has <code class="docutils literal notranslate"><span class="pre">ppdict_rget_*</span></code> counterpart that dereferences +indirect objects if necessary. Note that there is no <code class="docutils literal notranslate"><span class="pre">ppdict_get_stream()</span></code> function, +but there is:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppdict_rget_stream</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +</pre></div> +</div> +<p>So far dicts comes with no names mapping, so by-name dict accessors perform a linear search +through the keys list. PDF dicts are usually small, so it is fast enough. +Building names lookup for every dict in PDF makes no sense I think, as <code class="docutils literal notranslate"><span class="pre">pplib</span></code> applications +will query just several dicts I guess.. However, some apps may extensively query +resources, which may refer to hundreds of objects (eg. images). So some mapping for dicts +is still considered.</p> +</div> +<div class="section" id="stream"> +<h2>Stream<a class="headerlink" href="#stream" title="Permalink to this headline">¶</a></h2> +<p>PDF streams are represented as <code class="docutils literal notranslate"><span class="pre">ppstream</span></code> objects. To get the stream dict:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppstream_dict</span><span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span> +</pre></div> +</div> +<p>To read the stream data:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">uint8_t</span> <span class="o">*</span> <span class="n">ppstream_first</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">size</span><span class="p">,</span> <span class="nb">int</span> <span class="n">decode</span><span class="p">);</span> +<span class="n">uint8_t</span> <span class="o">*</span> <span class="n">ppstream_next</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">size</span><span class="p">);</span> +<span class="n">void</span> <span class="n">ppstream_done</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">);</span> +</pre></div> +</div> +<p>Both <code class="docutils literal notranslate"><span class="pre">first`</span> <span class="pre">and</span> <span class="pre">``next</span></code> functions return a chunk of stream data and sets the <code class="docutils literal notranslate"><span class="pre">size</span></code> of the chunk. +<code class="docutils literal notranslate"><span class="pre">decode</span></code> parameter tell the reader to decompress the stream (1) or return raw (0). A call to <code class="docutils literal notranslate"><span class="pre">ppstream_next()</span></code> +must be preceeded by <code class="docutils literal notranslate"><span class="pre">ppstream_first()</span></code>. Once you’re done with the stream, you have to call <code class="docutils literal notranslate"><span class="pre">ppstream_done()</span></code>, +no matter if the stream has been read to the end or not. The stream data iterator in use:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">uint8_t</span> <span class="o">*</span><span class="n">data</span><span class="p">;</span> +<span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> +<span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">;</span> +<span class="nb">int</span> <span class="n">decode</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="o">//</span> <span class="mi">1</span> <span class="o">-</span> <span class="n">get</span> <span class="n">decompressed</span><span class="p">,</span> <span class="mi">0</span> <span class="o">-</span> <span class="n">get</span> <span class="n">raw</span> + +<span class="k">for</span> <span class="p">(</span><span class="n">data</span> <span class="o">=</span> <span class="n">ppstream_first</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="n">decode</span><span class="p">);</span> <span class="n">data</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> <span class="n">data</span> <span class="o">=</span> <span class="n">ppstream_next</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">))</span> +<span class="p">{</span> + <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">data</span> <span class="ow">and</span> <span class="n">its</span> <span class="n">size</span> +<span class="p">}</span> +<span class="n">ppstream_done</span><span class="p">(</span><span class="n">stream</span><span class="p">);</span> +</pre></div> +</div> +<p>Every subsequent iterator call invalidates the previous reader output, so you have to utilize the returned chunk +of data just after you ot that. So the following is wrong:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">data1</span> <span class="o">=</span> <span class="n">ppstream_first</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> +<span class="n">data2</span> <span class="o">=</span> <span class="n">ppstream_next</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">);</span> +<span class="n">data3</span> <span class="o">=</span> <span class="n">ppstream_next</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">);</span> +<span class="n">some_output</span><span class="p">(</span><span class="n">data1</span><span class="p">,</span> <span class="n">size</span><span class="p">);</span> +<span class="n">some_output</span><span class="p">(</span><span class="n">data2</span><span class="p">,</span> <span class="n">size</span><span class="p">);</span> +</pre></div> +</div> +<p>The reader calls usually return the same pointer to internal buffer, just filled with a different data. +<code class="docutils literal notranslate"><span class="pre">pplib</span></code> allocates reasonably large buffer and fills that buffer on subsequent calls to the reader.</p> +<p>If the source stream has no compression, using both <code class="docutils literal notranslate"><span class="pre">decode</span> <span class="pre">==</span> <span class="pre">1</span></code> and <code class="docutils literal notranslate"><span class="pre">decode</span> <span class="pre">==</span> <span class="pre">0</span></code> should give the same result. +You can check if the stream is actually compressed with:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream_compressed</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">non</span> <span class="n">zero</span> <span class="k">if</span> <span class="o">/</span><span class="n">Filter</span> <span class="ow">is</span> <span class="n">present</span> +</pre></div> +</div> +<p>It might be necessary to load the entire stream data at once:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">uint8_t</span> <span class="o">*</span> <span class="n">ppstream_all</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">size</span><span class="p">,</span> <span class="nb">int</span> <span class="n">decode</span><span class="p">);</span> +</pre></div> +</div> +<p>If the initial buffer size is insufficient, it grows until the entire stream data is loaded. You must call +<code class="docutils literal notranslate"><span class="pre">ppstream_done(stream)</span></code> after using returned data.</p> +<p><code class="docutils literal notranslate"><span class="pre">ppstream_done()</span></code> doesn’t invalidate the stream object, it just closes its internal reader. +The stream itself remains a valid object (eg. one can read it again if necessary), +but the reader buffer is released. It is actually not freed but kept for future the reuse with that on some other stream, +but you still need to mark it ready for reuse to avoid allocating a separate buffer for every stream you’re going to read.</p> +<p>Stream data readers will return <code class="docutils literal notranslate"><span class="pre">NULL</span></code> if you haven’t close the previous reader process with <code class="docutils literal notranslate"><span class="pre">ppstream_done()</span></code>. All below is wrong:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">data1</span> <span class="o">=</span> <span class="n">ppstream_all</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> +<span class="n">data2</span> <span class="o">=</span> <span class="n">ppstream_all</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> <span class="o">//</span> <span class="n">data2</span> <span class="o">==</span> <span class="n">NULL</span> +<span class="o">//</span> <span class="ow">or</span> +<span class="n">data1</span> <span class="o">=</span> <span class="n">ppstream_first</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> +<span class="n">data2</span> <span class="o">=</span> <span class="n">ppstream_first</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> <span class="o">//</span> <span class="n">data2</span> <span class="o">==</span> <span class="n">NULL</span> +<span class="o">//</span> <span class="ow">or</span> +<span class="n">data1</span> <span class="o">=</span> <span class="n">ppstream_first</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> +<span class="n">data2</span> <span class="o">=</span> <span class="n">ppstream_all</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> <span class="o">//</span> <span class="n">data2</span> <span class="o">==</span> <span class="n">NULL</span> +</pre></div> +</div> +<p>To avoid unnecessary dependencies, <code class="docutils literal notranslate"><span class="pre">pplib</span></code> does not support image filters (<code class="docutils literal notranslate"><span class="pre">/DCT</span></code>, <code class="docutils literal notranslate"><span class="pre">/JPX</span></code>, <code class="docutils literal notranslate"><span class="pre">/JBIG</span></code>, <code class="docutils literal notranslate"><span class="pre">/CCITT</span></code>). +But it is ok to read the stream with <code class="docutils literal notranslate"><span class="pre">decode</span></code> set to 1 on such streams. <code class="docutils literal notranslate"><span class="pre">pplib</span></code> assumes that the image is the +final/target stream form and just returns it as-is. Eg. in the case of JPEG (<code class="docutils literal notranslate"><span class="pre">/DCT</span></code> filtered) image both calls should +give the same results:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream_all</span><span class="p">(</span><span class="n">jpegstream</span><span class="p">,</span> <span class="o">&</span><span class="n">jpegsize</span><span class="p">,</span> <span class="mi">0</span><span class="p">);</span> <span class="o">//</span> <span class="n">don</span><span class="s1">'t decode, return what'</span><span class="n">s</span> <span class="n">there</span> +<span class="n">ppstream_all</span><span class="p">(</span><span class="n">jpegstream</span><span class="p">,</span> <span class="o">&</span><span class="n">jpegsize</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> <span class="o">//</span> <span class="n">decode</span> <span class="n">but</span> <span class="n">found</span> <span class="n">image</span> <span class="nb">filter</span><span class="p">,</span> <span class="n">effectively</span> <span class="n">the</span> <span class="n">same</span> +</pre></div> +</div> +<p>A bit more about streams memory. As mentioned, <code class="docutils literal notranslate"><span class="pre">pplib</span></code> allocates buffers for stream readers. After <code class="docutils literal notranslate"><span class="pre">ppstream_done()</span></code>, +the stream no longer <em>owns</em> the buffer space. But the buffer may remain allocated, to be reused with future readers. +<code class="docutils literal notranslate"><span class="pre">pplib</span></code> keeps a pool of several buffers. This means, that when you use stream readers, <code class="docutils literal notranslate"><span class="pre">pplib</span></code> eats +some memory (1MB or so) that is not freed, even if no streams are used. And even if you free all objects. +If you suffer from this, you can optionally use a pair of functions:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">ppstream_init_buffers</span> <span class="p">(</span><span class="n">void</span><span class="p">);</span> +<span class="n">void</span> <span class="n">ppstream_free_buffers</span> <span class="p">(</span><span class="n">void</span><span class="p">);</span> +</pre></div> +</div> +<p>The first initializes buffers pool, unless done so far. Currently <code class="docutils literal notranslate"><span class="pre">pplib</span></code> cares of it before opening every stream reader, +so it is not obligatory. The second frees a pool of buffers. The intended use is to call <code class="docutils literal notranslate"><span class="pre">ppstream_init_buffers()</span></code> once +as kind of library initializer and to call <code class="docutils literal notranslate"><span class="pre">ppstream_free_buffers()</span></code> once, as the library finalizer.</p> +</div> +<div class="section" id="filters"> +<h2>Filters<a class="headerlink" href="#filters" title="Permalink to this headline">¶</a></h2> +<p>In version v1.00 (20190916) <code class="docutils literal notranslate"><span class="pre">ppstream</span></code> API has been extended with filters information. +<code class="docutils literal notranslate"><span class="pre">ppstream</span></code> knows its filter(s) and keps it as <code class="docutils literal notranslate"><span class="pre">stream->filter</span></code>:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">//</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">;</span> +<span class="n">ppstream_filter</span> <span class="o">*</span><span class="n">info</span> <span class="o">=</span> <span class="o">&</span><span class="n">stream</span><span class="o">-></span><span class="nb">filter</span><span class="p">;</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">ppstream_filter</span></code> is the following structure:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppstreamtp</span> <span class="o">*</span><span class="n">filters</span><span class="p">;</span> <span class="o">//</span> <span class="n">c</span><span class="o">-</span><span class="n">array</span> <span class="n">of</span> <span class="nb">filter</span> <span class="n">identifiers</span> <span class="p">(</span><span class="n">enum</span> <span class="n">integers</span><span class="p">)</span> + <span class="n">ppdict</span> <span class="o">**</span><span class="n">params</span><span class="p">;</span> <span class="o">//</span> <span class="n">c</span><span class="o">-</span><span class="n">array</span> <span class="n">of</span> <span class="n">ppdict</span> <span class="n">pointers</span> + <span class="n">size_t</span> <span class="n">count</span><span class="p">;</span> <span class="o">//</span> <span class="n">number</span> <span class="n">of</span> <span class="n">filters</span><span class="p">,</span> <span class="n">length</span> <span class="n">of</span> <span class="n">the</span> <span class="n">arrays</span> <span class="p">(</span><span class="n">typically</span> <span class="mi">1</span><span class="p">)</span> +<span class="p">}</span> <span class="n">ppstream_filter</span><span class="p">;</span> +</pre></div> +</div> +<p>If <code class="docutils literal notranslate"><span class="pre">count</span> <span class="pre">></span> <span class="pre">0</span></code> then <code class="docutils literal notranslate"><span class="pre">filters</span></code> member is not NULL. Filters array keeps integer constants:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">PPSTREAM_BASE16</span> <span class="o">/*</span> <span class="o">/</span><span class="n">ASCIIHexDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_BASE85</span> <span class="o">/*</span> <span class="o">/</span><span class="n">ASCII85Decode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_RUNLENGTH</span> <span class="o">/*</span> <span class="o">/</span><span class="n">RunLengthDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_FLATE</span> <span class="o">/*</span> <span class="o">/</span><span class="n">FlateDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_LZW</span> <span class="o">/*</span> <span class="o">/</span><span class="n">LZWDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_CCITT</span> <span class="o">/*</span> <span class="o">/</span><span class="n">CCITTFaxDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_DCT</span> <span class="o">/*</span> <span class="o">/</span><span class="n">DCTDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_JBIG2</span> <span class="o">/*</span> <span class="o">/</span><span class="n">JBIG2Decode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_JPX</span> <span class="o">/*</span> <span class="o">/</span><span class="n">JPXDecode</span> <span class="o">*/</span> +<span class="n">PPSTREAM_CRYPT</span> <span class="o">/*</span> <span class="o">/</span><span class="n">Crypt</span> <span class="o">*/</span> +</pre></div> +</div> +<p>Params array keeps corresponding filter parameters (<code class="docutils literal notranslate"><span class="pre">/DecodeParms</span></code>) if present. <code class="docutils literal notranslate"><span class="pre">params</span></code> member is not NULL +if <code class="docutils literal notranslate"><span class="pre">count</span> <span class="pre">></span> <span class="pre">0</span></code> and the stream dict has <code class="docutils literal notranslate"><span class="pre">/DecodeParms</span></code> entry. Even if <code class="docutils literal notranslate"><span class="pre">params</span></code> is there, +for every N-th filter, <code class="docutils literal notranslate"><span class="pre">params[N]</span></code> may be NULL (corresponding to PDF <code class="docutils literal notranslate"><span class="pre">null</span></code>).</p> +<p><code class="docutils literal notranslate"><span class="pre">stream->filter</span></code> keeps the source stream filter information, which may not correspond to the result of stream readers +(<code class="docutils literal notranslate"><span class="pre">ppstream_first()</span></code>, <code class="docutils literal notranslate"><span class="pre">ppstream_next()</span></code>, <code class="docutils literal notranslate"><span class="pre">ppstream_all()</span></code>). The get the filters info relevant to the result from readers:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">ppstream_filter_info</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">ppstream_filter</span> <span class="o">*</span><span class="n">info</span><span class="p">,</span> <span class="nb">int</span> <span class="n">decode</span><span class="p">);</span> +</pre></div> +</div> +<p>The function fills <code class="docutils literal notranslate"><span class="pre">ppstream_filter</span></code> structure according to the expected result from stream readers (example 3 shows +how to use it to reconstruct <code class="docutils literal notranslate"><span class="pre">/Filter</span></code> and <code class="docutils literal notranslate"><span class="pre">/DecodeParms</span></code> when copying the stream to some other PDF).</p> +<p>To convert filter identifier (<code class="docutils literal notranslate"><span class="pre">ppstreamtp</span></code>) to a corresponding PDF filter name:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppstream_filter_name</span><span class="p">[];</span> +</pre></div> +</div> +<p>To covert <code class="docutils literal notranslate"><span class="pre">ppname</span></code> to filter identifier:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">ppstream_filter_type</span> <span class="p">(</span><span class="n">ppname</span> <span class="n">filtername</span><span class="p">,</span> <span class="n">ppstreamtp</span> <span class="o">*</span><span class="n">filtertype</span><span class="p">);</span> +<span class="o">//</span> <span class="n">returns</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">sets</span> <span class="n">filtertype</span> <span class="k">if</span> <span class="n">filtername</span> <span class="ow">is</span> <span class="n">the</span> <span class="n">proper</span> <span class="nb">filter</span> <span class="n">name</span> +</pre></div> +</div> +<p>Additional information about the stream can be fetched from macros:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream_compressed</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span> <span class="o">/*</span> <span class="n">stream</span><span class="o">-></span><span class="n">flags</span> <span class="o">&</span> <span class="p">(</span><span class="n">PPSTREAM_FILTER</span><span class="o">|</span><span class="n">PPSTREAM_IMAGE</span><span class="p">)</span> <span class="o">*/</span> +<span class="n">ppstream_filtered</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span> <span class="o">/*</span> <span class="n">stream</span><span class="o">-></span><span class="n">flags</span> <span class="o">&</span> <span class="n">PPSTREAM_FILTER</span> <span class="o">*/</span> +<span class="n">ppstream_image</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span> <span class="o">/*</span> <span class="n">stream</span><span class="o">-></span><span class="n">flags</span> <span class="o">*</span> <span class="n">PPSTREAM_IMAGE</span> <span class="o">*/</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">stream->flags</span></code> is a binary sum of the following:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">PPSTREAM_FILTER</span> <span class="o">/*</span> <span class="nb">set</span> <span class="n">iff</span> <span class="n">the</span> <span class="n">stream</span> <span class="n">filters</span> <span class="nb">list</span> <span class="n">has</span> <span class="n">one</span> <span class="n">of</span><span class="p">:</span> <span class="n">BASE16</span><span class="p">,</span> <span class="n">BASE85</span><span class="p">,</span> <span class="n">RUNLENGTH</span><span class="p">,</span> <span class="n">FLATE</span><span class="p">,</span> <span class="n">LZW</span> <span class="o">*/</span> +<span class="n">PPSTREAM_IMAGE</span> <span class="o">/*</span> <span class="nb">set</span> <span class="n">iff</span> <span class="n">the</span> <span class="n">stream</span> <span class="n">filters</span> <span class="nb">list</span> <span class="n">has</span> <span class="n">one</span> <span class="n">of</span><span class="p">:</span> <span class="n">CCITT</span><span class="p">,</span> <span class="n">DCT</span><span class="p">,</span> <span class="n">JBIG2</span><span class="p">,</span> <span class="n">JPX</span> <span class="o">*/</span> +<span class="n">PPSTREAM_ENCRYPTED</span> <span class="o">/*</span> <span class="nb">set</span> <span class="n">iff</span> <span class="n">the</span> <span class="n">stream</span> <span class="ow">is</span> <span class="n">encrypted</span> <span class="o">*/</span> +<span class="n">PPSTREAM_ENCRYPTED_OWN</span> <span class="o">/*</span> <span class="nb">set</span> <span class="n">iff</span> <span class="n">the</span> <span class="n">stream</span> <span class="n">has</span> <span class="n">own</span> <span class="n">CRYPT</span> <span class="nb">filter</span> <span class="o">*/</span> +</pre></div> +</div> +<p>Note that <code class="docutils literal notranslate"><span class="pre">PPSTREAM_COMPRESSED</span></code> is not there any longer, use <code class="docutils literal notranslate"><span class="pre">ppstream_compressed()</span></code> instead. +And there is some more, see <code class="docutils literal notranslate"><span class="pre">ppapi.h</span></code>.</p> +</div> +<div class="section" id="ref"> +<h2>Ref<a class="headerlink" href="#ref" title="Permalink to this headline">¶</a></h2> +<p>Indirect objects are represented as <code class="docutils literal notranslate"><span class="pre">ppref</span></code> structure. To get the object that the +reference refers to:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppref_obj</span><span class="p">(</span><span class="n">ppref</span> <span class="o">*</span><span class="n">ref</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">ppref</span></code> structure also keeps the reference number and version, a pointer to cross reference table it belongs +to and others, but I guess you won’t need anything but the referenced object. <code class="docutils literal notranslate"><span class="pre">pplib</span></code> parser resolves references +on-fly. So if there is a dict with indirect objects:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o"><<</span> + <span class="o">/</span><span class="n">Type</span> <span class="o">/</span><span class="n">Page</span> + <span class="o">/</span><span class="n">Resources</span> <span class="mi">123</span> <span class="mi">0</span> <span class="n">R</span> + <span class="o">...</span> +<span class="o">>></span> +</pre></div> +</div> +<p>the parser will produce <code class="docutils literal notranslate"><span class="pre">ppdict</span></code> with <code class="docutils literal notranslate"><span class="pre">Resources</span></code> key pointing the proper <code class="docutils literal notranslate"><span class="pre">ppref</span> <span class="pre">*</span></code> value. +If you need more, access <code class="docutils literal notranslate"><span class="pre">ppref</span></code> members:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">struct</span> <span class="n">ppref</span> <span class="p">{</span> + <span class="n">ppobj</span> <span class="nb">object</span><span class="p">;</span> <span class="o">//</span> <span class="n">target</span> <span class="nb">object</span> + <span class="n">ppuint</span> <span class="n">number</span><span class="p">,</span> <span class="n">version</span><span class="p">;</span> <span class="o">//</span> <span class="n">identifiers</span> + <span class="n">size_t</span> <span class="n">offset</span><span class="p">;</span> <span class="o">//</span> <span class="n">file</span> <span class="n">offset</span> <span class="p">(</span><span class="n">useless</span> <span class="k">for</span> <span class="n">you</span><span class="p">,</span> <span class="n">may</span> <span class="n">be</span> <span class="n">zero</span> <span class="k">for</span> <span class="n">compressed</span> <span class="n">objects</span><span class="p">)</span> + <span class="n">ppuint</span> <span class="n">length</span><span class="p">;</span> <span class="o">//</span> <span class="n">the</span> <span class="n">length</span> <span class="n">of</span> <span class="n">the</span> <span class="n">original</span> <span class="nb">object</span> <span class="n">data</span> + <span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">;</span> <span class="o">//</span> <span class="n">cross</span> <span class="n">reference</span> <span class="n">table</span> <span class="n">it</span> <span class="n">belongs</span> <span class="n">to</span> +<span class="p">};</span> +</pre></div> +</div> +</div> +<div class="section" id="xref"> +<h2>XRef<a class="headerlink" href="#xref" title="Permalink to this headline">¶</a></h2> +<p>Cross reference table is exposed as <code class="docutils literal notranslate"><span class="pre">ppxref</span></code> (incomplete type, you can only oprate on its pointer). +To get top document xref:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppxref</span> <span class="o">*</span> <span class="n">ppdoc_xref</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>To get previous (older) xref:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppxref</span> <span class="o">*</span> <span class="n">ppxref_prev</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">);</span> +</pre></div> +</div> +<p>To find an object of a given refnumber:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppref</span> <span class="o">*</span> <span class="n">ppxref_find</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">,</span> <span class="n">ppuint</span> <span class="n">refnumber</span><span class="p">);</span> +</pre></div> +</div> +<p>[Note: since pplib v0.98 in case of documents with incremental update, <code class="docutils literal notranslate"><span class="pre">ppxref_find()</span></code> returns +the newest available version of a given object rather than the object in a given body.]</p> +</div> +<div class="section" id="pdf"> +<h2>PDF<a class="headerlink" href="#pdf" title="Permalink to this headline">¶</a></h2> +<p>PDF document is represented as <code class="docutils literal notranslate"><span class="pre">ppdoc</span></code> structure (incomplete type, you can only operate on its pointer). +To load a document from file:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdoc</span> <span class="o">*</span> <span class="n">ppdoc_load</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">filename</span><span class="p">);</span> +</pre></div> +</div> +<p>To load a document from memory data:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdoc</span> <span class="o">*</span> <span class="n">ppdoc_mem</span> <span class="p">(</span><span class="n">const</span> <span class="n">void</span> <span class="o">*</span><span class="n">data</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">size</span><span class="p">);</span> +</pre></div> +</div> +<p>The data is assumed to be a buffer allocated with <code class="docutils literal notranslate"><span class="pre">malloc</span></code> - it is freed when destroying <code class="docutils literal notranslate"><span class="pre">ppdoc</span></code>.</p> +<p>Both loaders returns <code class="docutils literal notranslate"><span class="pre">NULL</span></code> on failure.</p> +<p>To free <code class="docutils literal notranslate"><span class="pre">ppdoc</span></code> and all objects it refers to:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">ppdoc_free</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>So far we haven’t mention about any explicit object reclaimers. There are no dedicated <code class="docutils literal notranslate"><span class="pre">free</span></code> functions +for other objects. You don’t allocate or free objects yourself. <code class="docutils literal notranslate"><span class="pre">ppdoc</span></code> object is an owner of all +beings it refers to. It also means that every object described so far is alive as long as the containing +<code class="docutils literal notranslate"><span class="pre">ppdoc</span></code> is alive.</p> +<p>To access main PDF dicts:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppdoc_trailer</span><span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">top</span> <span class="n">xref</span> <span class="n">trailer</span> <span class="nb">dict</span> +<span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppdoc_catalog</span><span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">catalog</span> <span class="n">referred</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">trailer</span> +<span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppdoc_info</span><span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">info</span> <span class="nb">dict</span> <span class="n">referred</span> <span class="kn">from</span> <span class="nn">the</span> <span class="n">trailer</span> +</pre></div> +</div> +<p>To get the PDF version:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppdoc_version_string</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> <span class="o">//</span> <span class="n">version</span> <span class="n">string</span> +<span class="nb">int</span> <span class="n">ppdoc_version_number</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">minor</span><span class="p">);</span> <span class="o">//</span> <span class="n">minor</span> <span class="ow">and</span> <span class="n">major</span> <span class="n">numbers</span> +</pre></div> +</div> +<p>To get the file size of the source PDF document:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">size_t</span> <span class="n">ppdoc_file_size</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>To get the number of objects in all xrefs:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppuint</span> <span class="n">ppdoc_objects</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>To get the approx usage of memory:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">size_t</span> <span class="n">ppdoc_memory</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">waste</span><span class="p">);</span> +</pre></div> +</div> +</div> +<div class="section" id="encryption"> +<h2>Encryption<a class="headerlink" href="#encryption" title="Permalink to this headline">¶</a></h2> +<p><code class="docutils literal notranslate"><span class="pre">pplib</span></code> handles encrypted (password protected) documents. If a document is encrypted, most of strings and streams are ciphered. +In that form they are unreadable and rather useless, you can’t even rewrite such strings/streams as-is to a different PDF output. +It is a common practise to <em>protect</em> documents with an empty password. Such documents remain readable in Acrobat (just opens them without prompting +for a password), but some features (eg. printing) may restricted by the application.</p> +<p>When <code class="docutils literal notranslate"><span class="pre">pplib</span></code> detects encryption, it follows Acrobat approach and first tries an empty password. If it succeeds, <code class="docutils literal notranslate"><span class="pre">pplib</span></code> proceeeds normally, providing +an access to decrypted strings and streams, as if they weren’t ciphered. If the document is protected with non-empty password, <code class="docutils literal notranslate"><span class="pre">pplib</span></code> gives +a way to provide a password and proceed. Until you provide a password, <code class="docutils literal notranslate"><span class="pre">ppdoc</span></code> object returned by <code class="docutils literal notranslate"><span class="pre">ppdoc_load()</span></code> function has all object wntries +set to <code class="docutils literal notranslate"><span class="pre">null</span></code>.</p> +<p>After loading a document you should check encryption status with:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppcrypt_status</span> <span class="n">ppdoc_crypt_status</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">ppcrypt_status</span></code> (integer) may have the following values:</p> +<blockquote> +<div><code class="docutils literal notranslate"><span class="pre">PPCRYPT_NONE</span></code> - no encryption, go ahead +<code class="docutils literal notranslate"><span class="pre">PPCRYPT_DONE</span></code> - encryption present but password succeeded, go ahead +<code class="docutils literal notranslate"><span class="pre">PPCRYPT_PASS</span></code> - encryption present, need non-empty password +<code class="docutils literal notranslate"><span class="pre">PPCRYPT_FAIL</span></code> - invalid or unsupported encryption (eg. undocumented in pdf spec)</div></blockquote> +<p>If a password is needed, you can provide one with:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppcrypt_status</span> <span class="n">ppdoc_crypt_pass</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="n">const</span> <span class="n">void</span> <span class="o">*</span><span class="n">userpass</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">userpasslength</span><span class="p">,</span> + <span class="n">const</span> <span class="n">void</span> <span class="o">*</span><span class="n">ownerpass</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">ownerpasslength</span><span class="p">);</span> +</pre></div> +</div> +<p>Well, yes, there are actually two passwords in encrypted documents. Relation between them is obscure to me, but enough +to know that having one of them is enough to decrypt the document. If you know the password, you probably mean +<code class="docutils literal notranslate"><span class="pre">userpass</span></code>, in which case you should put <code class="docutils literal notranslate"><span class="pre">NULL</span></code> as <code class="docutils literal notranslate"><span class="pre">ownerpass</span></code>. The function returns <code class="docutils literal notranslate"><span class="pre">PPCRYPT_DONE</span></code> if the password +succeeds and the previous status otherwise. Your custom loader function may look like that:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">;</span> +<span class="n">pdf</span> <span class="o">=</span> <span class="n">ppdoc_load</span><span class="p">(</span><span class="s2">"file.pdf"</span><span class="p">);</span> +<span class="k">if</span> <span class="p">(</span><span class="n">pdf</span> <span class="o">==</span> <span class="n">NULL</span><span class="p">)</span> + <span class="k">return</span> <span class="n">NULL</span><span class="p">;</span> +<span class="n">switch</span> <span class="p">(</span><span class="n">ppdoc_crypt_status</span><span class="p">(</span><span class="n">pdf</span><span class="p">))</span> +<span class="p">{</span> + <span class="n">case</span> <span class="n">PPCRYPT_NONE</span><span class="p">:</span> + <span class="n">case</span> <span class="n">PPCRYPT_DONE</span><span class="p">:</span> + <span class="k">return</span> <span class="n">pdf</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPCRYPT_PASS</span><span class="p">:</span> + <span class="k">if</span> <span class="p">(</span><span class="n">ppdoc_crypt_pass</span><span class="p">(</span><span class="n">pdf</span><span class="p">,</span> <span class="s2">"dummy"</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="n">NULL</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">==</span> <span class="n">PPCRYPT_DONE</span> <span class="o">||</span> + <span class="n">ppdoc_crypt_pass</span><span class="p">(</span><span class="n">pdf</span><span class="p">,</span> <span class="n">NULL</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="s2">"dummy"</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span> <span class="o">==</span> <span class="n">PPCRYPT_DONE</span><span class="p">)</span> + <span class="k">return</span> <span class="n">pdf</span><span class="p">;</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"sorry, password needed</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">ppdoc_free</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="k">return</span> <span class="n">NULL</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPCRYPT_FAIL</span><span class="p">:</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"sorry, encryption failed</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">ppdoc_free</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="k">return</span> <span class="n">NULL</span><span class="p">;</span> +<span class="p">}</span> +</pre></div> +</div> +<p>[If you get <code class="docutils literal notranslate"><span class="pre">PPCRYPT_FAIL</span></code> it might mean <em>I failed</em>, so treat as a bug.]</p> +<p>If you’d like to know what permissions are given/restricted to encrypted document:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppint</span> <span class="n">ppdoc_permissions</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>Returned value can be queried with the following binary flags (you can verify with Acrobat <em>File -> Properties -> Security</em> tab):</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">PPDOC_ALLOW_PRINT</span> <span class="o">//</span> <span class="n">printing</span> +<span class="n">PPDOC_ALLOW_MODIFY</span> <span class="o">//</span> <span class="n">filling</span> <span class="n">form</span> <span class="n">fields</span><span class="p">,</span> <span class="n">signing</span><span class="p">,</span> <span class="n">creating</span> <span class="n">template</span> <span class="n">pages</span> +<span class="n">PPDOC_ALLOW_COPY</span> <span class="o">//</span> <span class="n">copying</span><span class="p">,</span> <span class="n">copying</span> <span class="k">for</span> <span class="n">accessibility</span> +<span class="n">PPDOC_ALLOW_ANNOTS</span> <span class="o">//</span> <span class="n">filling</span> <span class="n">form</span> <span class="n">fields</span><span class="p">,</span> <span class="n">copying</span><span class="p">,</span> <span class="n">signing</span> +<span class="n">PPDOC_ALLOW_EXTRACT</span> <span class="o">//</span> <span class="n">contents</span> <span class="n">copying</span> <span class="k">for</span> <span class="n">accessibility</span> +<span class="n">PPDOC_ALLOW_ASSEMBLY</span> <span class="o">//</span> <span class="p">(</span><span class="n">no</span> <span class="n">effect</span><span class="p">)</span> +<span class="n">PPDOC_ALLOW_PRINT_HIRES</span> <span class="o">//</span> <span class="p">(</span><span class="n">no</span> <span class="n">effect</span><span class="p">)</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">pplib</span></code> does absolutelly nothing with permissions, it cares only to decrypt the document. As mentioned, encryption applies to strings +and streams. <code class="docutils literal notranslate"><span class="pre">pplib</span></code> decrypt strings when parsing document objects, so the result you get is <em>normal</em> (not ciphered). +Streams are decrypted whenever you access them. Even if you ask for a raw stream data, you’ll get a raw (compressed) stream, but decrypted. +So except the check to <code class="docutils literal notranslate"><span class="pre">ppdoc_crypt_status()</span></code>, you shouldn’t bother about encryption.</p> +<p>In encrypted documents most of streams are encrypted. To check if a given stream is encrypted:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream_encrypted</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span> <span class="o">//</span> <span class="n">macro</span><span class="p">,</span> <span class="n">returns</span> <span class="n">non</span><span class="o">-</span><span class="n">zero</span> <span class="k">if</span> <span class="n">encrypted</span> +</pre></div> +</div> +<p>Encryption is independent from compression, don’t confuse with <code class="docutils literal notranslate"><span class="pre">ppstream_compressed()</span></code></p> +</div> +<div class="section" id="pages"> +<h2>Pages<a class="headerlink" href="#pages" title="Permalink to this headline">¶</a></h2> +<p>Several helpers to deal with pages. To get the number of pages:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppuint</span> <span class="n">ppdoc_page_count</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>To access the root pages tree node:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_pages</span><span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>To get the page reference at a given index:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_page</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="n">ppuint</span> <span class="n">index</span><span class="p">);</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">index</span></code> is a page number. First page has number 1. For index out of bounds <code class="docutils literal notranslate"><span class="pre">ppdoc_page()</span></code> returns NULL. +Iterating over pages using index from 1 to <code class="docutils literal notranslate"><span class="pre">ppdoc_page_count()</span></code> and calling <code class="docutils literal notranslate"><span class="pre">ppdoc_page()</span></code> on each iteration +would be suboptimal. Here is a dedicted iterator for this:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_first_page</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_next_page</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +</pre></div> +</div> +<p>The iterator in use:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">;</span> +<span class="n">ppref</span> <span class="o">*</span><span class="n">ref</span><span class="p">;</span> +<span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> +<span class="nb">int</span> <span class="n">pageno</span><span class="p">;</span> + +<span class="n">pdf</span> <span class="o">=</span> <span class="n">ppdoc_load</span><span class="p">(</span><span class="s2">"file.pdf"</span><span class="p">);</span> +<span class="k">for</span> <span class="p">(</span><span class="n">ref</span> <span class="o">=</span> <span class="n">ppdoc_first_page</span><span class="p">(</span><span class="n">pdf</span><span class="p">),</span> <span class="n">pageno</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="n">ref</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> <span class="n">ref</span> <span class="o">=</span> <span class="n">ppdoc_next_page</span><span class="p">(</span><span class="n">pdf</span><span class="p">),</span> <span class="o">++</span><span class="n">pageno</span><span class="p">)</span> +<span class="p">{</span> + <span class="nb">dict</span> <span class="o">=</span> <span class="n">ppref_obj</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span><span class="o">-></span><span class="nb">dict</span><span class="p">;</span> <span class="o">//</span> <span class="n">take</span> <span class="k">for</span> <span class="n">granted</span> <span class="n">it</span> <span class="ow">is</span> <span class="n">a</span> <span class="nb">dict</span> + <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">the</span> <span class="n">page</span> <span class="nb">dict</span> +<span class="p">}</span> +</pre></div> +</div> +<p>Functions related to pages return <code class="docutils literal notranslate"><span class="pre">ppref</span> <span class="pre">*</span></code> ensured to contain dict object, so you don’t need sanity +type checks here.</p> +</div> +<div class="section" id="contents"> +<h2>Contents<a class="headerlink" href="#contents" title="Permalink to this headline">¶</a></h2> +<p>PDF page contents can be given as a stream or array of streams. Here is a convenience iterator over page +contents streams:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppcontents_first</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">);</span> +<span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppcontents_next</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">);</span> +</pre></div> +</div> +<p>A complete example of contents stream parser use is given below (example 2). +But before we get there, we need to introduce <code class="docutils literal notranslate"><span class="pre">ppcontext</span></code> object. Conceptually, +<code class="docutils literal notranslate"><span class="pre">ppcontext</span></code> is an owner (memory handler) of objects created on demand (beyond the <code class="docutils literal notranslate"><span class="pre">ppdoc</span></code>). +So far used only with contents stream parser, which might produce quite some data that we want +to release just after used. To create a new context:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pcontext</span> <span class="o">*</span> <span class="n">ppcontext_new</span> <span class="p">(</span><span class="n">void</span><span class="p">);</span> +</pre></div> +</div> +<p>It initializes a new context and its internal memory heap, taking about 64kB on start. After that, +the context is ready to produce objects (contents parsing functions below). Once objects produced +from a given context are no longer needed:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">ppcontext_done</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">);</span> +</pre></div> +</div> +<p>It restores the context to its initial state, as after <code class="docutils literal notranslate"><span class="pre">ppcontext_new()</span></code>. It means that the context +is ready to produce another bunch of beings (in the example below, all objects from the next page contents). +Once the context is not needed anymore:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">ppcontext_free</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">);</span> +</pre></div> +</div> +<p>Now, contents stream parser functions take the context as an argument. Iterator form of contents stream parser +that allows to process the contents operator by operator:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppcontents_first_op</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">psize</span><span class="p">,</span> <span class="n">ppname</span> <span class="o">*</span><span class="n">pname</span><span class="p">);</span> +<span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppcontents_next_op</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">psize</span><span class="p">,</span> <span class="n">ppname</span> <span class="o">*</span><span class="n">pname</span><span class="p">);</span> +</pre></div> +</div> +<p>Returned <code class="docutils literal notranslate"><span class="pre">ppobj</span> <span class="pre">*</span></code> is a pointer to operands list. <code class="docutils literal notranslate"><span class="pre">*psize</span></code> is the number of operands on stack. +The operator itself is stored as <code class="docutils literal notranslate"><span class="pre">*pname</span></code>.</p> +<p>To parse the entire contents stream at once with no stop at every operator:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppcontents_parse</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">psize</span><span class="p">);</span> +</pre></div> +</div> +<p>Returns probably quite long list of all parsed objects (operands and operatos) in one piece. +The number of objects is stored to <code class="docutils literal notranslate"><span class="pre">*psize</span></code>.</p> +<p>[Contents may contain so called inline images, that breaks a simple scheme of operands / operator syntax:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">BI</span> <span class="o"><</span><span class="n">keyval</span> <span class="n">pairs</span><span class="o">></span> <span class="n">ID</span> <span class="o"><</span><span class="n">binary</span> <span class="n">image</span> <span class="n">data</span><span class="o">></span> <span class="n">EI</span> +</pre></div> +</div> +<p>Contents parser treats this genuine triplet as a single piece, producing two operands (dict and string) +followed by <code class="docutils literal notranslate"><span class="pre">EI</span></code> operator name.]</p> +</div> +<div class="section" id="boxes"> +<h2>Boxes<a class="headerlink" href="#boxes" title="Permalink to this headline">¶</a></h2> +<p>Boxes (rectangles) in PDF are roughly 4-number arrays, but with a special intent. +<code class="docutils literal notranslate"><span class="pre">pplib</span></code> provides a basic interface for these special arrays:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppnum</span> <span class="n">lx</span><span class="p">,</span> <span class="n">ly</span><span class="p">,</span> <span class="n">rx</span><span class="p">,</span> <span class="n">ry</span><span class="p">;</span> +<span class="p">}</span> <span class="n">pprect</span><span class="p">;</span> +</pre></div> +</div> +<p>This type is used only by helper functions - PDF parser is not aware of the rectangle type. +To convert <code class="docutils literal notranslate"><span class="pre">pparray</span></code> to <code class="docutils literal notranslate"><span class="pre">pprect</span></code>:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pprect</span> <span class="o">*</span> <span class="n">pparray_to_rect</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">pprect</span> <span class="o">*</span><span class="n">rect</span><span class="p">);</span> <span class="o">//</span> <span class="n">returns</span> <span class="n">rect</span> <span class="ow">or</span> <span class="n">NULL</span> +</pre></div> +</div> +<p>In example:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pprect</span> <span class="n">rect</span><span class="p">;</span> +<span class="k">if</span> <span class="p">(</span><span class="n">pparray_to_rect</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="o">&</span><span class="n">rect</span><span class="p">)</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">)</span> + <span class="p">;</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">rect</span> +</pre></div> +</div> +<p>To get some image bounding box:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pprect</span> <span class="o">*</span> <span class="n">ppdict_get_rect</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">pprect</span> <span class="o">*</span><span class="n">rect</span><span class="p">);</span> +<span class="o">//</span> <span class="n">eg</span><span class="o">.</span> <span class="n">ppdict_get_rect</span><span class="p">(</span><span class="n">imagedict</span><span class="p">,</span> <span class="s2">"BBox"</span><span class="p">,</span> <span class="o">&</span><span class="n">rect</span><span class="p">)</span> +</pre></div> +</div> +<p>To get some page box:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pprect</span> <span class="o">*</span> <span class="n">ppdict_get_box</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">pprect</span> <span class="o">*</span><span class="n">rect</span><span class="p">);</span> +<span class="o">//</span> <span class="n">eg</span><span class="o">.</span> <span class="n">ppdict_get_box</span><span class="p">(</span><span class="n">pagedict</span><span class="p">,</span> <span class="s2">"MediaBox"</span><span class="p">,</span> <span class="o">&</span><span class="n">rect</span><span class="p">)</span> +</pre></div> +</div> +<p>The later not only checks the pagedict, but also goes through parent page nodes.</p> +</div> +<div class="section" id="transforms"> +<h2>Transforms<a class="headerlink" href="#transforms" title="Permalink to this headline">¶</a></h2> +<p>Transformations are given as 6-number arrays, but with a special intent. +<code class="docutils literal notranslate"><span class="pre">pplib</span></code> provides a basic interface for these special arrays:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppnum</span> <span class="n">xx</span><span class="p">,</span> <span class="n">xy</span><span class="p">,</span> <span class="n">yx</span><span class="p">,</span> <span class="n">yy</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">;</span> +<span class="p">}</span> <span class="n">ppmatrix</span><span class="p">;</span> +</pre></div> +</div> +<p>This type is used only by helper functions - PDF parser is not aware of the matrix type. +To convert <code class="docutils literal notranslate"><span class="pre">pparray</span></code> to <code class="docutils literal notranslate"><span class="pre">ppmatrix</span></code>:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppmatrix</span> <span class="o">*</span> <span class="n">pparray_to_matrix</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">ppmatrix</span> <span class="o">*</span><span class="n">matrix</span><span class="p">);</span> +</pre></div> +</div> +<p>In example:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppmatrix</span> <span class="n">matrix</span><span class="p">;</span> +<span class="k">if</span> <span class="p">(</span><span class="n">pparray_to_matrix</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="o">&</span><span class="n">matrix</span><span class="p">)</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">)</span> + <span class="p">;</span> <span class="o">//</span> <span class="n">do</span> <span class="n">something</span> <span class="k">with</span> <span class="n">matrix</span> +</pre></div> +</div> +<p>To get the matrix from dict:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ppmatrix</span> <span class="o">*</span> <span class="n">ppdict_get_matrix</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppmatrix</span> <span class="o">*</span><span class="n">matrix</span><span class="p">);</span> +<span class="o">//</span> <span class="n">eg</span><span class="o">.</span> <span class="n">ppdict_get_matrix</span><span class="p">(</span><span class="n">imagedict</span><span class="p">,</span> <span class="s2">"Matrix"</span><span class="p">,</span> <span class="o">&</span><span class="n">matrix</span><span class="p">)</span> +</pre></div> +</div> +</div> +<div class="section" id="errors-handling"> +<h2>Errors handling<a class="headerlink" href="#errors-handling" title="Permalink to this headline">¶</a></h2> +<p><code class="docutils literal notranslate"><span class="pre">pplib</span></code> is not verbose, but might happen that it needs to log some error message, eg. when parsing +of some PDF boject fails due to invalid offsets. By default, <code class="docutils literal notranslate"><span class="pre">pplib</span></code> prints the message to stdout, eg.:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">invalid</span> <span class="mi">123</span> <span class="mi">0</span> <span class="n">R</span> <span class="nb">object</span> <span class="n">at</span> <span class="n">offset</span> <span class="mi">123123</span> +</pre></div> +</div> +<p>To replace the default logger, you can provide your own:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">pplog_callback</span> <span class="p">(</span><span class="n">pplogger_callback</span> <span class="n">logger</span><span class="p">,</span> <span class="n">void</span> <span class="o">*</span><span class="n">alien</span><span class="p">);</span> +</pre></div> +</div> +<p><code class="docutils literal notranslate"><span class="pre">pplogger_callback</span></code> is a function:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">your_callback</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">message</span><span class="p">,</span> <span class="n">void</span> <span class="o">*</span><span class="n">alien</span><span class="p">);</span> +</pre></div> +</div> +<p>In example, to redirect messages to stderr you may define a function:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">void</span> <span class="n">your_callback</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">message</span><span class="p">,</span> <span class="n">void</span> <span class="o">*</span><span class="n">alien</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">fprintf</span><span class="p">((</span><span class="n">FILE</span> <span class="o">*</span><span class="p">)</span><span class="n">alien</span><span class="p">,</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">ooops: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">message</span><span class="p">);</span> +<span class="p">}</span> +</pre></div> +</div> +<p>Then set the callback somewhere before loading documents:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">pplog_callback</span><span class="p">(</span><span class="n">your_callback</span><span class="p">,</span> <span class="n">stderr</span><span class="p">);</span> +</pre></div> +</div> +<p>(example 2 uses that).</p> +<p>To set the default log messages prefix, eg. <code class="docutils literal notranslate"><span class="pre">pplib:</span></code>, use:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">int</span> <span class="n">pplog_prefix</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">prefix</span><span class="p">)</span> +</pre></div> +</div> +<p>Default is empty. The function succeeds if provided prefix is reasonably short (less then 32 bytes).</p> +</div> +</div> + + + </div> + </div> + </div> + <div class="clearer"></div> + </div> + <div class="related" role="navigation" aria-label="related navigation"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + >index</a></li> + <li class="right" > + <a href="ppcode.html" title="Examples" + >next</a> |</li> + <li class="right" > + <a href="pplib.html" title="pplib" + >previous</a> |</li> + <li class="nav-item nav-item-0"><a href="pplib.html">pplib 0.1 documentation</a> »</li> + </ul> + </div> + <div class="footer" role="contentinfo"> + © Copyright 2018, p.jackowski@gust.org.pl. + Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.7.4. + </div> + </body> +</html>
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/ppcode.html b/Build/source/texk/web2c/luatexdir/luapplib/html/ppcode.html new file mode 100644 index 00000000000..e65000d0fd5 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/ppcode.html @@ -0,0 +1,923 @@ + + +<!doctype html> + +<html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> + <title>Examples — pplib 0.1 documentation</title> + <link rel="stylesheet" href="_static/bizstyle.css" type="text/css" /> + <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> + <script type="text/javascript" src="_static/documentation_options.js"></script> + <script type="text/javascript" src="_static/jquery.js"></script> + <script type="text/javascript" src="_static/underscore.js"></script> + <script type="text/javascript" src="_static/doctools.js"></script> + <script type="text/javascript" src="_static/bizstyle.js"></script> + <link rel="index" title="Index" href="genindex.html" /> + <link rel="search" title="Search" href="search.html" /> + <link rel="prev" title="pplib" href="ppapi.html" /> + <meta name="viewport" content="width=device-width,initial-scale=1.0"> + <!--[if lt IE 9]> + <script type="text/javascript" src="_static/css3-mediaqueries.js"></script> + <![endif]--> + </head><body> + <div class="related" role="navigation" aria-label="related navigation"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + accesskey="I">index</a></li> + <li class="right" > + <a href="ppapi.html" title="pplib" + accesskey="P">previous</a> |</li> + <li class="nav-item nav-item-0"><a href="pplib.html">pplib 0.1 documentation</a> »</li> + </ul> + </div> + <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> + <div class="sphinxsidebarwrapper"> + <h3><a href="pplib.html">Table Of Contents</a></h3> + <ul> +<li><a class="reference internal" href="#">Examples</a><ul> +<li><a class="reference internal" href="#example-1">Example 1</a></li> +<li><a class="reference internal" href="#example-2">Example 2</a></li> +<li><a class="reference internal" href="#example-3">Example 3</a></li> +<li><a class="reference internal" href="#ppapi-h">ppapi.h</a></li> +</ul> +</li> +<li><a class="reference internal" href="#changes">Changes</a><ul> +<li><a class="reference internal" href="#v0-97">v0.97</a></li> +<li><a class="reference internal" href="#v0-98">v0.98</a></li> +<li><a class="reference internal" href="#v0-99">v0.99</a></li> +<li><a class="reference internal" href="#v1-00">v1.00</a></li> +<li><a class="reference internal" href="#v1-01">v1.01</a></li> +<li><a class="reference internal" href="#v1-02">v1.02</a></li> +<li><a class="reference internal" href="#v1-03">v1.03</a></li> +<li><a class="reference internal" href="#v1-04">v1.04</a></li> +</ul> +</li> +<li><a class="reference internal" href="#todo">TODO</a></li> +</ul> + + <h4>Previous topic</h4> + <p class="topless"><a href="ppapi.html" + title="previous chapter"><code class="docutils literal notranslate"><span class="pre">pplib</span></code></a></p> + <div role="note" aria-label="source link"> + <h3>This Page</h3> + <ul class="this-page-menu"> + <li><a href="_sources/ppcode.rst.txt" + rel="nofollow">Show Source</a></li> + </ul> + </div> +<div id="searchbox" style="display: none" role="search"> + <h3>Quick search</h3> + <div class="searchformwrapper"> + <form class="search" action="search.html" method="get"> + <input type="text" name="q" /> + <input type="submit" value="Go" /> + <input type="hidden" name="check_keywords" value="yes" /> + <input type="hidden" name="area" value="default" /> + </form> + </div> +</div> +<script type="text/javascript">$('#searchbox').show(0);</script> + </div> + </div> + + <div class="document"> + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body" role="main"> + + <div class="section" id="examples"> +<h1>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h1> +<div class="section" id="example-1"> +<h2>Example 1<a class="headerlink" href="#example-1" title="Permalink to this headline">¶</a></h2> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> +<span class="c1">#include <stdio.h></span> +<span class="c1">#include "ppapi.h"</span> + +<span class="n">static</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">sizenum</span> <span class="p">(</span><span class="n">size_t</span> <span class="n">s</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">static</span> <span class="n">char</span> <span class="n">buffer</span><span class="p">[</span><span class="mi">32</span><span class="p">];</span> + <span class="k">if</span> <span class="p">(</span><span class="n">s</span> <span class="o"><</span> <span class="mi">1000</span><span class="p">)</span> + <span class="n">sprintf</span><span class="p">(</span><span class="n">buffer</span><span class="p">,</span> <span class="s2">"</span><span class="si">%u</span><span class="s2">B"</span><span class="p">,</span> <span class="p">(</span><span class="n">unsigned</span><span class="p">)</span><span class="n">s</span><span class="p">);</span> + <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">s</span> <span class="o"><</span> <span class="mi">1000000</span><span class="p">)</span> + <span class="n">sprintf</span><span class="p">(</span><span class="n">buffer</span><span class="p">,</span> <span class="s2">"</span><span class="si">%.2f</span><span class="s2">kB"</span><span class="p">,</span> <span class="p">(</span><span class="n">double</span><span class="p">)(</span><span class="n">s</span><span class="p">)</span> <span class="o">/</span> <span class="mi">1000</span><span class="p">);</span> + <span class="k">else</span> + <span class="n">sprintf</span><span class="p">(</span><span class="n">buffer</span><span class="p">,</span> <span class="s2">"</span><span class="si">%.2f</span><span class="s2">MB"</span><span class="p">,</span> <span class="p">(</span><span class="n">double</span><span class="p">)(</span><span class="n">s</span><span class="p">)</span> <span class="o">/</span> <span class="mi">1000000</span><span class="p">);</span> + <span class="k">return</span> <span class="n">buffer</span><span class="p">;</span> +<span class="p">}</span> + +<span class="n">static</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">crypt_info</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">switch</span> <span class="p">(</span><span class="n">ppdoc_crypt_status</span><span class="p">(</span><span class="n">pdf</span><span class="p">))</span> + <span class="p">{</span> + <span class="n">case</span> <span class="n">PPCRYPT_NONE</span><span class="p">:</span> + <span class="k">return</span> <span class="s2">"none"</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPCRYPT_DONE</span><span class="p">:</span> + <span class="k">return</span> <span class="s2">"empty password"</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPCRYPT_PASS</span><span class="p">:</span> + <span class="k">return</span> <span class="s2">"nonempty password"</span><span class="p">;</span> + <span class="n">default</span><span class="p">:</span> + <span class="k">break</span><span class="p">;</span> + <span class="p">}</span> + <span class="k">return</span> <span class="s2">"this shouldn't happen"</span><span class="p">;</span> +<span class="p">}</span> + +<span class="n">static</span> <span class="n">void</span> <span class="n">print_info</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">ppdict</span> <span class="o">*</span><span class="n">info</span><span class="p">;</span> + <span class="n">ppstring</span> <span class="n">creator</span><span class="p">,</span> <span class="n">producer</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">memused</span><span class="p">,</span> <span class="n">memwaste</span><span class="p">;</span> + + <span class="k">if</span> <span class="p">((</span><span class="n">info</span> <span class="o">=</span> <span class="n">ppdoc_info</span><span class="p">(</span><span class="n">pdf</span><span class="p">))</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">)</span> + <span class="p">{</span> + <span class="k">if</span> <span class="p">((</span><span class="n">creator</span> <span class="o">=</span> <span class="n">ppdict_rget_string</span><span class="p">(</span><span class="n">info</span><span class="p">,</span> <span class="s2">"Creator"</span><span class="p">))</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">)</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" creator: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">ppstring_decoded</span><span class="p">(</span><span class="n">creator</span><span class="p">));</span> + <span class="k">if</span> <span class="p">((</span><span class="n">producer</span> <span class="o">=</span> <span class="n">ppdict_rget_string</span><span class="p">(</span><span class="n">info</span><span class="p">,</span> <span class="s2">"Producer"</span><span class="p">))</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">)</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" producer: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">ppstring_decoded</span><span class="p">(</span><span class="n">producer</span><span class="p">));</span> + <span class="p">}</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" version: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">ppdoc_version_string</span><span class="p">(</span><span class="n">pdf</span><span class="p">));</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" protection: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">crypt_info</span><span class="p">(</span><span class="n">pdf</span><span class="p">));</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" filesize: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">sizenum</span><span class="p">(</span><span class="n">ppdoc_file_size</span><span class="p">(</span><span class="n">pdf</span><span class="p">)));</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" objects: "</span> <span class="n">PPUINTF</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">ppdoc_objects</span><span class="p">(</span><span class="n">pdf</span><span class="p">));</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" pagecount: "</span> <span class="n">PPUINTF</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">ppdoc_page_count</span><span class="p">(</span><span class="n">pdf</span><span class="p">));</span> + <span class="n">memused</span> <span class="o">=</span> <span class="n">ppdoc_memory</span><span class="p">(</span><span class="n">pdf</span><span class="p">,</span> <span class="o">&</span><span class="n">memwaste</span><span class="p">);</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" memused: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">sizenum</span><span class="p">(</span><span class="n">memused</span><span class="p">));</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">" memwaste: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">sizenum</span><span class="p">(</span><span class="n">memwaste</span><span class="p">));</span> +<span class="p">}</span> + +<span class="n">static</span> <span class="nb">int</span> <span class="n">usage</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">argv0</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"pplib "</span> <span class="n">pplib_version</span> <span class="s2">", "</span> <span class="n">pplib_author</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"usage: </span><span class="si">%s</span><span class="s2"> file1.pdf file2.pdf ...</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">argv0</span><span class="p">);</span> + <span class="k">return</span> <span class="mi">0</span><span class="p">;</span> +<span class="p">}</span> + +<span class="nb">int</span> <span class="n">main</span> <span class="p">(</span><span class="nb">int</span> <span class="n">argc</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">**</span><span class="n">argv</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">filepath</span><span class="p">;</span> + <span class="nb">int</span> <span class="n">a</span><span class="p">;</span> + <span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">;</span> + + <span class="k">if</span> <span class="p">(</span><span class="n">argc</span> <span class="o"><</span> <span class="mi">2</span><span class="p">)</span> + <span class="k">return</span> <span class="n">usage</span><span class="p">(</span><span class="n">argv</span><span class="p">[</span><span class="mi">0</span><span class="p">]);</span> + <span class="k">for</span> <span class="p">(</span><span class="n">a</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="n">a</span> <span class="o"><</span> <span class="n">argc</span><span class="p">;</span> <span class="o">++</span><span class="n">a</span><span class="p">)</span> + <span class="p">{</span> + <span class="n">filepath</span> <span class="o">=</span> <span class="n">argv</span><span class="p">[</span><span class="n">a</span><span class="p">];</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"loading </span><span class="si">%s</span><span class="s2">... "</span><span class="p">,</span> <span class="n">filepath</span><span class="p">);</span> + <span class="n">pdf</span> <span class="o">=</span> <span class="n">ppdoc_load</span><span class="p">(</span><span class="n">filepath</span><span class="p">);</span> + <span class="k">if</span> <span class="p">(</span><span class="n">pdf</span> <span class="o">==</span> <span class="n">NULL</span><span class="p">)</span> + <span class="p">{</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"failed</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="k">continue</span><span class="p">;</span> + <span class="p">}</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"done.</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">print_info</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="n">ppdoc_free</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="p">}</span> + <span class="k">return</span> <span class="mi">0</span><span class="p">;</span> +<span class="p">}</span> +</pre></div> +</div> +</div> +<div class="section" id="example-2"> +<h2>Example 2<a class="headerlink" href="#example-2" title="Permalink to this headline">¶</a></h2> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> +<span class="c1">#include <stdio.h></span> +<span class="c1">#include <assert.h></span> +<span class="c1">#include "ppapi.h"</span> + +<span class="n">static</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">get_file_name</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">path</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">fn</span><span class="p">,</span> <span class="o">*</span><span class="n">p</span><span class="p">;</span> + <span class="k">for</span> <span class="p">(</span><span class="n">fn</span> <span class="o">=</span> <span class="n">p</span> <span class="o">=</span> <span class="n">path</span><span class="p">;</span> <span class="o">*</span><span class="n">p</span> <span class="o">!=</span> <span class="s1">'</span><span class="se">\0</span><span class="s1">'</span><span class="p">;</span> <span class="o">++</span><span class="n">p</span><span class="p">)</span> + <span class="k">if</span> <span class="p">(</span><span class="o">*</span><span class="n">p</span> <span class="o">==</span> <span class="s1">'</span><span class="se">\\</span><span class="s1">'</span> <span class="o">||</span> <span class="o">*</span><span class="n">p</span> <span class="o">==</span> <span class="s1">'/'</span><span class="p">)</span> + <span class="n">fn</span> <span class="o">=</span> <span class="n">p</span> <span class="o">+</span> <span class="mi">1</span><span class="p">;</span> + <span class="k">return</span> <span class="n">fn</span><span class="p">;</span> +<span class="p">}</span> + +<span class="n">static</span> <span class="n">void</span> <span class="n">box_info</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="n">pagedict</span><span class="p">,</span> <span class="n">FILE</span> <span class="o">*</span><span class="n">fh</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">boxes</span><span class="p">[]</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"MediaBox"</span><span class="p">,</span> <span class="s2">"CropBox"</span><span class="p">,</span> <span class="s2">"BleedBox"</span><span class="p">,</span> <span class="s2">"TrimBox"</span><span class="p">,</span> <span class="s2">"ArtBox"</span><span class="p">};</span> + <span class="n">pprect</span> <span class="n">rect</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">i</span><span class="p">;</span> + <span class="k">for</span> <span class="p">(</span><span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o"><</span> <span class="n">sizeof</span><span class="p">(</span><span class="n">boxes</span><span class="p">)</span> <span class="o">/</span> <span class="n">sizeof</span><span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="p">);</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> + <span class="k">if</span> <span class="p">(</span><span class="n">ppdict_get_box</span><span class="p">(</span><span class="n">pagedict</span><span class="p">,</span> <span class="n">boxes</span><span class="p">[</span><span class="n">i</span><span class="p">],</span> <span class="o">&</span><span class="n">rect</span><span class="p">))</span> + <span class="n">fprintf</span><span class="p">(</span><span class="n">fh</span><span class="p">,</span> <span class="s2">"</span><span class="si">%%%%</span><span class="s2"> </span><span class="si">%s</span><span class="s2"> [</span><span class="si">%f</span><span class="s2"> </span><span class="si">%f</span><span class="s2"> </span><span class="si">%f</span><span class="s2"> </span><span class="si">%f</span><span class="s2">]</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">boxes</span><span class="p">[</span><span class="n">i</span><span class="p">],</span> <span class="n">rect</span><span class="o">.</span><span class="n">lx</span><span class="p">,</span> <span class="n">rect</span><span class="o">.</span><span class="n">ly</span><span class="p">,</span> <span class="n">rect</span><span class="o">.</span><span class="n">rx</span><span class="p">,</span> <span class="n">rect</span><span class="o">.</span><span class="n">ry</span><span class="p">);</span> +<span class="p">}</span> + +<span class="n">static</span> <span class="nb">int</span> <span class="n">usage</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">argv0</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"pplib "</span> <span class="n">pplib_version</span> <span class="s2">", "</span> <span class="n">pplib_author</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"usage: </span><span class="si">%s</span><span class="s2"> file1.pdf file2.pdf ...</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">argv0</span><span class="p">);</span> + <span class="k">return</span> <span class="mi">0</span><span class="p">;</span> +<span class="p">}</span> + +<span class="c1">#define OUTDIR "."</span> + +<span class="n">static</span> <span class="n">void</span> <span class="n">log_callback</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">message</span><span class="p">,</span> <span class="n">void</span> <span class="o">*</span><span class="n">alien</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">fprintf</span><span class="p">((</span><span class="n">FILE</span> <span class="o">*</span><span class="p">)</span><span class="n">alien</span><span class="p">,</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">ooops: </span><span class="si">%s</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">message</span><span class="p">);</span> +<span class="p">}</span> + +<span class="nb">int</span> <span class="n">main</span> <span class="p">(</span><span class="nb">int</span> <span class="n">argc</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">**</span><span class="n">argv</span><span class="p">)</span> +<span class="p">{</span> + <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">filepath</span><span class="p">,</span> <span class="o">*</span><span class="n">filename</span><span class="p">;</span> + <span class="nb">int</span> <span class="n">a</span><span class="p">;</span> + <span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">;</span> + <span class="n">ppref</span> <span class="o">*</span><span class="n">pageref</span><span class="p">;</span> + <span class="n">ppdict</span> <span class="o">*</span><span class="n">pagedict</span><span class="p">;</span> + <span class="nb">int</span> <span class="n">pageno</span><span class="p">;</span> + <span class="n">char</span> <span class="n">outname</span><span class="p">[</span><span class="mi">1024</span><span class="p">];</span> + <span class="n">FILE</span> <span class="o">*</span><span class="n">fh</span><span class="p">;</span> + <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">;</span> + <span class="n">uint8_t</span> <span class="o">*</span><span class="n">data</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> + <span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">;</span> + <span class="n">ppobj</span> <span class="o">*</span><span class="n">obj</span><span class="p">;</span> + <span class="n">ppname</span> <span class="n">op</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">operators</span><span class="p">;</span> + + <span class="k">if</span> <span class="p">(</span><span class="n">argc</span> <span class="o"><</span> <span class="mi">2</span><span class="p">)</span> + <span class="k">return</span> <span class="n">usage</span><span class="p">(</span><span class="n">argv</span><span class="p">[</span><span class="mi">0</span><span class="p">]);</span> + <span class="n">ppstream_init_buffers</span><span class="p">();</span> + <span class="n">pplog_callback</span><span class="p">(</span><span class="n">log_callback</span><span class="p">,</span> <span class="n">stderr</span><span class="p">);</span> + <span class="n">context</span> <span class="o">=</span> <span class="n">ppcontext_new</span><span class="p">();</span> + <span class="k">for</span> <span class="p">(</span><span class="n">a</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> <span class="n">a</span> <span class="o"><</span> <span class="n">argc</span><span class="p">;</span> <span class="o">++</span><span class="n">a</span><span class="p">)</span> + <span class="p">{</span> + <span class="n">filepath</span> <span class="o">=</span> <span class="n">argv</span><span class="p">[</span><span class="n">a</span><span class="p">];</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"loading </span><span class="si">%s</span><span class="s2">... "</span><span class="p">,</span> <span class="n">filepath</span><span class="p">);</span> + <span class="n">pdf</span> <span class="o">=</span> <span class="n">ppdoc_load</span><span class="p">(</span><span class="n">filepath</span><span class="p">);</span> + <span class="k">if</span> <span class="p">(</span><span class="n">pdf</span> <span class="o">==</span> <span class="n">NULL</span><span class="p">)</span> + <span class="p">{</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"failed</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="k">continue</span><span class="p">;</span> + <span class="p">}</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"done.</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">switch</span> <span class="p">(</span><span class="n">ppdoc_crypt_status</span><span class="p">(</span><span class="n">pdf</span><span class="p">))</span> + <span class="p">{</span> + <span class="n">case</span> <span class="n">PPCRYPT_NONE</span><span class="p">:</span> + <span class="n">case</span> <span class="n">PPCRYPT_DONE</span><span class="p">:</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPCRYPT_PASS</span><span class="p">:</span> + <span class="k">if</span> <span class="p">(</span><span class="n">ppdoc_crypt_pass</span><span class="p">(</span><span class="n">pdf</span><span class="p">,</span> <span class="s2">"dummy"</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="n">NULL</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">==</span> <span class="n">PPCRYPT_DONE</span> <span class="o">||</span> <span class="n">ppdoc_crypt_pass</span><span class="p">(</span><span class="n">pdf</span><span class="p">,</span> <span class="n">NULL</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="s2">"dummy"</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span> <span class="o">==</span> <span class="n">PPCRYPT_DONE</span><span class="p">)</span> + <span class="k">break</span><span class="p">;</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"sorry, password needed</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">ppdoc_free</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="k">continue</span><span class="p">;</span> + <span class="n">case</span> <span class="n">PPCRYPT_FAIL</span><span class="p">:</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"sorry, encryption failed</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="n">ppdoc_free</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="k">continue</span><span class="p">;</span> + <span class="p">}</span> + <span class="n">filename</span> <span class="o">=</span> <span class="n">get_file_name</span><span class="p">(</span><span class="n">filepath</span><span class="p">);</span> + <span class="n">sprintf</span><span class="p">(</span><span class="n">outname</span><span class="p">,</span> <span class="n">OUTDIR</span> <span class="s2">"/</span><span class="si">%s</span><span class="s2">.out"</span><span class="p">,</span> <span class="n">filename</span><span class="p">);</span> + <span class="n">fh</span> <span class="o">=</span> <span class="n">fopen</span><span class="p">(</span><span class="n">outname</span><span class="p">,</span> <span class="s2">"wb"</span><span class="p">);</span> + <span class="k">if</span> <span class="p">(</span><span class="n">fh</span> <span class="o">==</span> <span class="n">NULL</span><span class="p">)</span> + <span class="p">{</span> + <span class="n">printf</span><span class="p">(</span><span class="s2">"can't open </span><span class="si">%s</span><span class="s2"> for writing</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">outname</span><span class="p">);</span> + <span class="k">continue</span><span class="p">;</span> + <span class="p">}</span> + <span class="k">for</span> <span class="p">(</span><span class="n">pageref</span> <span class="o">=</span> <span class="n">ppdoc_first_page</span><span class="p">(</span><span class="n">pdf</span><span class="p">),</span> <span class="n">pageno</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> + <span class="n">pageref</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> + <span class="n">pageref</span> <span class="o">=</span> <span class="n">ppdoc_next_page</span><span class="p">(</span><span class="n">pdf</span><span class="p">),</span> <span class="o">++</span><span class="n">pageno</span><span class="p">)</span> + <span class="p">{</span> + <span class="n">pagedict</span> <span class="o">=</span> <span class="n">pageref</span><span class="o">-></span><span class="nb">object</span><span class="o">.</span><span class="n">dict</span><span class="p">;</span> + <span class="o">/*</span> <span class="n">decompress</span> <span class="n">contents</span> <span class="n">data</span> <span class="o">*/</span> + <span class="n">fprintf</span><span class="p">(</span><span class="n">fh</span><span class="p">,</span> <span class="s2">"</span><span class="si">%%%%</span><span class="s2"> PAGE </span><span class="si">%d</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">pageno</span><span class="p">);</span> + <span class="n">box_info</span><span class="p">(</span><span class="n">pagedict</span><span class="p">,</span> <span class="n">fh</span><span class="p">);</span> + <span class="k">for</span> <span class="p">(</span><span class="n">stream</span> <span class="o">=</span> <span class="n">ppcontents_first</span><span class="p">(</span><span class="n">pagedict</span><span class="p">);</span> + <span class="n">stream</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> + <span class="n">stream</span> <span class="o">=</span> <span class="n">ppcontents_next</span><span class="p">(</span><span class="n">pagedict</span><span class="p">,</span> <span class="n">stream</span><span class="p">))</span> + <span class="p">{</span> + <span class="k">for</span> <span class="p">(</span><span class="n">data</span> <span class="o">=</span> <span class="n">ppstream_first</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> + <span class="n">data</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> + <span class="n">data</span> <span class="o">=</span> <span class="n">ppstream_next</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">))</span> + <span class="n">fwrite</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">fh</span><span class="p">);</span> + <span class="n">ppstream_done</span><span class="p">(</span><span class="n">stream</span><span class="p">);</span> + <span class="p">}</span> + <span class="o">/*</span> <span class="n">now</span> <span class="n">parse</span> <span class="n">contents</span> <span class="o">*/</span> + <span class="k">for</span> <span class="p">(</span><span class="n">stream</span> <span class="o">=</span> <span class="n">ppcontents_first</span><span class="p">(</span><span class="n">pagedict</span><span class="p">);</span> + <span class="n">stream</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> + <span class="n">stream</span> <span class="o">=</span> <span class="n">ppcontents_next</span><span class="p">(</span><span class="n">pagedict</span><span class="p">,</span> <span class="n">stream</span><span class="p">))</span> + <span class="p">{</span> + <span class="n">operators</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> + <span class="k">for</span> <span class="p">(</span><span class="n">obj</span> <span class="o">=</span> <span class="n">ppcontents_first_op</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="o">&</span><span class="n">op</span><span class="p">);</span> + <span class="n">obj</span> <span class="o">!=</span> <span class="n">NULL</span><span class="p">;</span> + <span class="n">obj</span> <span class="o">=</span> <span class="n">ppcontents_next_op</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">,</span> <span class="o">&</span><span class="n">op</span><span class="p">))</span> + <span class="o">++</span><span class="n">operators</span><span class="p">;</span> + <span class="n">fprintf</span><span class="p">(</span><span class="n">fh</span><span class="p">,</span> <span class="s2">"</span><span class="si">%%%%</span><span class="s2"> OPERATORS count "</span> <span class="n">PPSIZEF</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">operators</span><span class="p">);</span> + <span class="n">ppstream_done</span><span class="p">(</span><span class="n">stream</span><span class="p">);</span> + <span class="o">//</span><span class="n">obj</span> <span class="o">=</span> <span class="n">ppcontents_parse</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">stream</span><span class="p">,</span> <span class="o">&</span><span class="n">size</span><span class="p">);</span> + <span class="o">//</span><span class="n">fprintf</span><span class="p">(</span><span class="n">fh</span><span class="p">,</span> <span class="s2">"</span><span class="si">%%%%</span><span class="s2"> items count "</span> <span class="n">PPSIZEF</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> <span class="n">size</span><span class="p">);</span> + <span class="n">fprintf</span><span class="p">(</span><span class="n">fh</span><span class="p">,</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span> + <span class="p">}</span> + <span class="n">ppcontext_done</span><span class="p">(</span><span class="n">context</span><span class="p">);</span> + <span class="p">}</span> + <span class="n">fclose</span><span class="p">(</span><span class="n">fh</span><span class="p">);</span> + <span class="n">ppdoc_free</span><span class="p">(</span><span class="n">pdf</span><span class="p">);</span> + <span class="p">}</span> + <span class="n">ppcontext_free</span><span class="p">(</span><span class="n">context</span><span class="p">);</span> + <span class="n">ppstream_free_buffers</span><span class="p">();</span> + <span class="k">return</span> <span class="mi">0</span><span class="p">;</span> +<span class="p">}</span> +</pre></div> +</div> +</div> +<div class="section" id="example-3"> +<h2>Example 3<a class="headerlink" href="#example-3" title="Permalink to this headline">¶</a></h2> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> +#include <stdio.h> +//#include "ppapi.h" +#include "pplib.h" +#include "assert.h" + +static int usage (const char *argv0) +{ + printf("pplib " pplib_version ", " pplib_author "\n"); + printf("usage: %s file1.pdf file2.pdf ...\n", argv0); + return 0; +} + +static void print_result_filter (ppstream *stream, int decode) +{ + ppstream_filter info; + size_t i; + + ppstream_filter_info(stream, &info, decode); + printf("when %s: /Filter [", decode ? "uncompressed" : "compressed"); + for (i = 0; i < info.count; ++i) + printf(" /%s", ppstream_filter_name[info.filters[i]]); + printf(" ]"); + if (info.params != NULL) + { + printf(" /DecodeParms ["); + for (i = 0; i < info.count; ++i) + printf(" %s", info.params[i] != NULL ? "<<...>>" : "null"); + printf(" ]"); + } + printf("\n"); +} + +static void print_stream_info (ppref *ref, ppstream *stream) +{ + size_t length; + printf("object %lu %lu R\n", (unsigned long)ref->number, (unsigned long)ref->version); + if (stream->flags & PPSTREAM_FILTER) + printf("filtered "); + else + printf("plain "); + if (stream->flags & PPSTREAM_IMAGE) + printf("image "); + else + printf("stream "); + if (stream->flags & PPSTREAM_ENCRYPTED) + printf("encrypted "); + if (stream->flags & PPSTREAM_NOT_SUPPORTED) + printf("invalid "); + if (!ppdict_rget_uint(stream->dict, "Length", &length)) + length = 0; + assert(stream->length == length); + printf("length %lu (/Length %lu)\n", (unsigned long)stream->length, (unsigned long)length); + print_result_filter(stream, 0); + print_result_filter(stream, 1); + printf("\n"); +} + +int main (int argc, const char **argv) +{ + const char *filepath; + int a; + ppdoc *pdf; + ppxref *xref; + ppxsec *xsec; + size_t xi; + ppuint refnum; + ppref *ref; + + if (argc < 2) + return usage(argv[0]); + for (a = 1; a < argc; ++a) + { + filepath = argv[a]; + printf("loading %s... ", filepath); + pdf = ppdoc_load(filepath); + if (pdf == NULL) + { + printf("failed\n"); + continue; + } + printf("done.\n"); + for (xref = ppdoc_xref(pdf); xref != NULL; xref = ppxref_prev(xref)) + { + for (xi = 0, xsec = xref->sects; xi < xref->size; ++xi, ++xsec) + { + for (refnum = xsec->first, ref = xsec->refs; refnum <= xsec->last; ++refnum, ++ref) + { + if (ref->object.type != PPSTREAM) + continue; + print_stream_info(ref, ref->object.stream); + } + } + } + ppdoc_free(pdf); + } + return 0; +} +</pre></div> +</div> +</div> +<div class="section" id="ppapi-h"> +<h2>ppapi.h<a class="headerlink" href="#ppapi-h" title="Permalink to this headline">¶</a></h2> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> +<span class="c1">#ifndef PP_API_H</span> +<span class="c1">#define PP_API_H</span> + +<span class="c1">#include <stdint.h></span> +<span class="c1">#include <stddef.h></span> +<span class="c1">#include <string.h></span> + +<span class="c1">#include "ppconf.h"</span> + +<span class="c1">#define pplib_version "v1.03"</span> +<span class="c1">#define pplib_author "p.jackowski@gust.org.pl"</span> + +<span class="o">/*</span> <span class="n">types</span> <span class="o">*/</span> + +<span class="n">typedef</span> <span class="n">int64_t</span> <span class="n">ppint</span><span class="p">;</span> +<span class="n">typedef</span> <span class="n">size_t</span> <span class="n">ppuint</span><span class="p">;</span> <span class="o">//</span> <span class="n">machine</span> <span class="n">word</span> + +<span class="n">typedef</span> <span class="n">double</span> <span class="n">ppnum</span><span class="p">;</span> +<span class="n">typedef</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppname</span><span class="p">;</span> +<span class="n">typedef</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppstring</span><span class="p">;</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> + <span class="nb">int</span> <span class="n">flags</span><span class="p">;</span> +<span class="p">}</span> <span class="n">_ppname</span><span class="p">;</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> + <span class="nb">int</span> <span class="n">flags</span><span class="p">;</span> +<span class="p">}</span> <span class="n">_ppstring</span><span class="p">;</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="n">ppobj</span> <span class="n">ppobj</span><span class="p">;</span> +<span class="n">typedef</span> <span class="n">struct</span> <span class="n">ppref</span> <span class="n">ppref</span><span class="p">;</span> + + +<span class="c1">#if ARM_COMPLIANT</span> +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppobj</span> <span class="o">*</span><span class="n">data</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> + <span class="n">ppnum</span> <span class="n">PPARRAY_ALIGNMENT</span><span class="p">;</span> +<span class="p">}</span> <span class="n">pparray</span><span class="p">;</span> +<span class="c1">#else</span> +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppobj</span> <span class="o">*</span><span class="n">data</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> +<span class="p">}</span> <span class="n">pparray</span><span class="p">;</span> +<span class="c1">#endif</span> + + +<span class="c1">#if ARM_COMPLIANT</span> +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppobj</span> <span class="o">*</span><span class="n">data</span><span class="p">;</span> + <span class="n">ppname</span> <span class="o">*</span><span class="n">keys</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> + <span class="n">ppnum</span> <span class="n">PPDICT_ALIGNMENT</span><span class="p">;</span> +<span class="p">}</span> <span class="n">ppdict</span><span class="p">;</span> + +<span class="c1">#else</span> +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppobj</span> <span class="o">*</span><span class="n">data</span><span class="p">;</span> + <span class="n">ppname</span> <span class="o">*</span><span class="n">keys</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">size</span><span class="p">;</span> +<span class="p">}</span> <span class="n">ppdict</span><span class="p">;</span> +<span class="c1">#endif</span> + +<span class="n">typedef</span> <span class="n">enum</span> <span class="p">{</span> + <span class="n">PPSTREAM_BASE16</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> + <span class="n">PPSTREAM_BASE85</span><span class="p">,</span> + <span class="n">PPSTREAM_RUNLENGTH</span><span class="p">,</span> + <span class="n">PPSTREAM_FLATE</span><span class="p">,</span> + <span class="n">PPSTREAM_LZW</span><span class="p">,</span> + <span class="n">PPSTREAM_CCITT</span><span class="p">,</span> + <span class="n">PPSTREAM_DCT</span><span class="p">,</span> + <span class="n">PPSTREAM_JBIG2</span><span class="p">,</span> + <span class="n">PPSTREAM_JPX</span><span class="p">,</span> + <span class="n">PPSTREAM_CRYPT</span> +<span class="p">}</span> <span class="n">ppstreamtp</span><span class="p">;</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppstreamtp</span> <span class="o">*</span><span class="n">filters</span><span class="p">;</span> + <span class="n">ppdict</span> <span class="o">**</span><span class="n">params</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">count</span><span class="p">;</span> +<span class="p">}</span> <span class="n">ppstream_filter</span><span class="p">;</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> + <span class="n">void</span> <span class="o">*</span><span class="nb">input</span><span class="p">,</span> <span class="o">*</span><span class="n">I</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">offset</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">length</span><span class="p">;</span> + <span class="n">ppstream_filter</span> <span class="nb">filter</span><span class="p">;</span> + <span class="n">ppobj</span> <span class="o">*</span><span class="n">filespec</span><span class="p">;</span> + <span class="n">ppstring</span> <span class="n">cryptkey</span><span class="p">;</span> + <span class="nb">int</span> <span class="n">flags</span><span class="p">;</span> +<span class="p">}</span> <span class="n">ppstream</span><span class="p">;</span> + +<span class="n">PPDEF</span> <span class="n">extern</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppstream_filter_name</span><span class="p">[];</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppstream_filter_type</span> <span class="p">(</span><span class="n">ppname</span> <span class="n">filtername</span><span class="p">,</span> <span class="n">ppstreamtp</span> <span class="o">*</span><span class="n">filtertype</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppstream_filter_info</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">ppstream_filter</span> <span class="o">*</span><span class="n">info</span><span class="p">,</span> <span class="nb">int</span> <span class="n">decode</span><span class="p">);</span> + +<span class="c1">#define PPSTREAM_FILTER (1<<0)</span> +<span class="c1">#define PPSTREAM_IMAGE (1<<1)</span> +<span class="c1">#define PPSTREAM_ENCRYPTED_AES (1<<2)</span> +<span class="c1">#define PPSTREAM_ENCRYPTED_RC4 (1<<3)</span> +<span class="c1">#define PPSTREAM_ENCRYPTED (PPSTREAM_ENCRYPTED_AES|PPSTREAM_ENCRYPTED_RC4)</span> +<span class="c1">#define PPSTREAM_ENCRYPTED_OWN (1<<4)</span> +<span class="c1">#define PPSTREAM_NOT_SUPPORTED (1<<6)</span> + +<span class="c1">#define ppstream_compressed(stream) ((stream)->flags & (PPSTREAM_FILTER|PPSTREAM_IMAGE))</span> +<span class="c1">#define ppstream_filtered(stream) ((stream)->flags & PPSTREAM_FILTER)</span> +<span class="c1">#define ppstream_image(stream) ((stream)->flags & PPSTREAM_IMAGE)</span> +<span class="c1">#define ppstream_encrypted(stream) ((stream)->flags & PPSTREAM_ENCRYPTED)</span> + +<span class="n">typedef</span> <span class="n">enum</span> <span class="p">{</span> + <span class="n">PPNONE</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> + <span class="n">PPNULL</span><span class="p">,</span> + <span class="n">PPBOOL</span><span class="p">,</span> + <span class="n">PPINT</span><span class="p">,</span> + <span class="n">PPNUM</span><span class="p">,</span> + <span class="n">PPNAME</span><span class="p">,</span> + <span class="n">PPSTRING</span><span class="p">,</span> + <span class="n">PPARRAY</span><span class="p">,</span> + <span class="n">PPDICT</span><span class="p">,</span> + <span class="n">PPSTREAM</span><span class="p">,</span> + <span class="n">PPREF</span> +<span class="p">}</span> <span class="n">ppobjtp</span><span class="p">;</span> + +<span class="n">PPDEF</span> <span class="n">extern</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppobj_kind</span><span class="p">[];</span> + +<span class="n">struct</span> <span class="n">ppobj</span> <span class="p">{</span> + <span class="n">ppobjtp</span> <span class="nb">type</span><span class="p">;</span> + <span class="n">union</span> <span class="p">{</span> + <span class="n">ppint</span> <span class="n">integer</span><span class="p">;</span> + <span class="n">ppnum</span> <span class="n">number</span><span class="p">;</span> + <span class="n">ppname</span> <span class="n">name</span><span class="p">;</span> + <span class="n">ppstring</span> <span class="n">string</span><span class="p">;</span> + <span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">;</span> + <span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">;</span> + <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">;</span> + <span class="n">ppref</span> <span class="o">*</span><span class="n">ref</span><span class="p">;</span> + <span class="n">void</span> <span class="o">*</span><span class="nb">any</span><span class="p">;</span> + <span class="p">};</span> +<span class="p">};</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="n">ppxref</span> <span class="n">ppxref</span><span class="p">;</span> + +<span class="n">struct</span> <span class="n">ppref</span> <span class="p">{</span> + <span class="n">ppobj</span> <span class="nb">object</span><span class="p">;</span> + <span class="n">ppuint</span> <span class="n">number</span><span class="p">,</span> <span class="n">version</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">offset</span><span class="p">;</span> + <span class="n">size_t</span> <span class="n">length</span><span class="p">;</span> + <span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">;</span> +<span class="p">};</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="n">ppdoc</span> <span class="n">ppdoc</span><span class="p">;</span> + +<span class="o">/*</span> <span class="nb">object</span> <span class="o">*/</span> + +<span class="c1">#define ppobj_get_null(o) ((o)->type == PPNULL ? 1 : 0)</span> +<span class="c1">#define ppobj_get_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : 0)</span> +<span class="c1">#define ppobj_get_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : 0)</span> +<span class="c1">#define ppobj_get_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : 0)</span> +<span class="c1">#define ppobj_get_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : 0)))</span> +<span class="c1">#define ppobj_get_name(o) ((o)->type == PPNAME ? (o)->name : NULL)</span> +<span class="c1">#define ppobj_get_string(o) ((o)->type == PPSTRING ? (o)->string : NULL)</span> +<span class="c1">#define ppobj_get_array(o) ((o)->type == PPARRAY ? (o)->array : NULL)</span> +<span class="c1">#define ppobj_get_dict(o) ((o)->type == PPDICT ? (o)->dict : NULL)</span> +<span class="c1">#define ppobj_get_stream(o) ((o)->type == PPSTREAM ? (o)->stream : NULL)</span> +<span class="c1">#define ppobj_get_ref(o) ((o)->type == PPREF ? (o)->ref : NULL)</span> + +<span class="c1">#define ppobj_rget_obj(o) ((o)->type == PPREF ? ppref_obj((o)->ref) : o)</span> +<span class="c1">#define ppobj_rget_null(o) ((o)->type == PPNULL ? 1 : ((o)->type == PPREF ? ppobj_get_null(ppref_obj((o)->ref)) : 0))</span> +<span class="c1">#define ppobj_rget_bool(o, v) ((o)->type == PPBOOL ? ((v = ((o)->integer != 0)), 1) : ((o)->type == PPREF ? ppobj_get_bool(ppref_obj((o)->ref), v) : 0))</span> +<span class="c1">#define ppobj_rget_int(o, v) ((o)->type == PPINT ? ((v = (o)->integer), 1) : ((o)->type == PPREF ? ppobj_get_int(ppref_obj((o)->ref), v) : 0))</span> +<span class="c1">#define ppobj_rget_uint(o, v) ((o)->type == PPINT && (o)->integer >= 0 ? ((v = (ppuint)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_uint(ppref_obj((o)->ref), v) : 0))</span> +<span class="c1">#define ppobj_rget_num(o, v) ((o)->type == PPNUM ? ((v = (o)->number), 1) : (((o)->type == PPINT ? ((v = (ppnum)((o)->integer)), 1) : ((o)->type == PPREF ? ppobj_get_num(ppref_obj((o)->ref), v) : 0))))</span> +<span class="c1">#define ppobj_rget_name(o) ((o)->type == PPNAME ? (o)->name : ((o)->type == PPREF ? ppobj_get_name(ppref_obj((o)->ref)) : NULL))</span> +<span class="c1">#define ppobj_rget_string(o) ((o)->type == PPSTRING ? (o)->string : ((o)->type == PPREF ? ppobj_get_string(ppref_obj((o)->ref)) : NULL))</span> +<span class="c1">#define ppobj_rget_array(o) ((o)->type == PPARRAY ? (o)->array : ((o)->type == PPREF ? ppobj_get_array(ppref_obj((o)->ref)) : NULL))</span> +<span class="c1">#define ppobj_rget_dict(o) ((o)->type == PPDICT ? (o)->dict : ((o)->type == PPREF ? ppobj_get_dict(ppref_obj((o)->ref)) : NULL))</span> +<span class="c1">#define ppobj_rget_stream(o) ((o)->type == PPSTREAM ? (o)->stream : ((o)->type == PPREF ? ppobj_get_stream(ppref_obj((o)->ref)) : NULL))</span> +<span class="c1">#define ppobj_rget_ref(o) ((o)->type == PPREF ? (o)->ref : ((o)->type == PPREF ? ppobj_get_ref(ppref_obj((o)->ref)) : NULL))</span> + +<span class="c1">#define ppobj_get_bool_value(o) ((o)->type == PPBOOL ? ((o)->integer != 0) : 0)</span> +<span class="c1">#define ppobj_get_int_value(o) ((o)->type == PPINT ? (o)->integer : 0)</span> +<span class="c1">#define ppobj_get_num_value(o) ((o)->type == PPNUM ? (o)->number : ((o)->type == PPINT ? (ppnum)((o)->integer) : 0.0))</span> + +<span class="o">/*</span> <span class="n">name</span> <span class="o">*/</span> + +<span class="c1">#define ppname_is(name, s) (memcmp(name, s, sizeof("" s) - 1) == 0)</span> +<span class="c1">#define ppname_eq(name, n) (memcmp(name, s, ppname_size(name)) == 0)</span> + +<span class="c1">#if ARM_COMPLIANT</span> +<span class="c1">#define _ppname_ghost(name) (((const _ppname *)((void *)name)) - 1)</span> +<span class="c1">#else</span> +<span class="c1">#define _ppname_ghost(name) (((const _ppname *)(name)) - 1)</span> +<span class="c1">#endif</span> + +<span class="c1">#define ppname_size(name) (_ppname_ghost(name)->size)</span> +<span class="c1">#define ppname_exec(name) (_ppname_ghost(name)->flags & PPNAME_EXEC)</span> + +<span class="c1">#define PPNAME_ENCODED (1 << 0)</span> +<span class="c1">#define PPNAME_DECODED (1 << 1)</span> +<span class="c1">#define PPNAME_EXEC (1 << 1)</span> + +<span class="n">PPAPI</span> <span class="n">ppname</span> <span class="n">ppname_decoded</span> <span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppname</span> <span class="n">ppname_encoded</span> <span class="p">(</span><span class="n">ppname</span> <span class="n">name</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">string</span> <span class="o">*/</span> + +<span class="c1">#if ARM_COMPLIANT</span> +<span class="c1">#define _ppstring_ghost(string) (((const _ppstring *)((void *)string)) - 1)</span> +<span class="c1">#else</span> +<span class="c1">#define _ppstring_ghost(string) (((const _ppstring *)(string)) - 1)</span> +<span class="c1">#endif</span> + +<span class="c1">#define ppstring_size(string) (_ppstring_ghost(string)->size)</span> + +<span class="c1">#define PPSTRING_ENCODED (1 << 0)</span> +<span class="c1">#define PPSTRING_DECODED (1 << 1)</span> +<span class="o">//</span><span class="c1">#define PPSTRING_EXEC (1 << 2) // postscript only</span> +<span class="c1">#define PPSTRING_PLAIN 0</span> +<span class="c1">#define PPSTRING_BASE16 (1 << 3)</span> +<span class="c1">#define PPSTRING_BASE85 (1 << 4)</span> +<span class="c1">#define PPSTRING_UTF16BE (1 << 5)</span> +<span class="c1">#define PPSTRING_UTF16LE (1 << 6)</span> + +<span class="c1">#define ppstring_type(string) (_ppstring_ghost(string)->flags & (PPSTRING_BASE16|PPSTRING_BASE85))</span> +<span class="c1">#define ppstring_hex(string) (_ppstring_ghost(string)->flags & PPSTRING_BASE16)</span> +<span class="c1">#define ppstring_utf(string) (_ppstring_ghost(string)->flags & (PPSTRING_UTF16BE|PPSTRING_UTF16LE))</span> + +<span class="n">PPAPI</span> <span class="n">ppstring</span> <span class="n">ppstring_decoded</span> <span class="p">(</span><span class="n">ppstring</span> <span class="n">string</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstring</span> <span class="n">ppstring_encoded</span> <span class="p">(</span><span class="n">ppstring</span> <span class="n">string</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">array</span> <span class="o">*/</span> + +<span class="c1">#define pparray_size(array) ((array)->size)</span> +<span class="c1">#define pparray_at(array, index) ((array)->data + index)</span> + +<span class="c1">#define pparray_first(array, index, obj) ((index) = 0, (obj) = pparray_at(array, 0))</span> +<span class="c1">#define pparray_next(index, obj) (++(index), ++(obj))</span> + +<span class="c1">#define pparray_get(array, index) (index < (array)->size ? pparray_at(array, index) : NULL)</span> + +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">pparray_get_obj</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_get_bool</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_get_int</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_get_uint</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppuint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_get_num</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppnum</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppname</span> <span class="n">pparray_get_name</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstring</span> <span class="n">pparray_get_string</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">pparray</span> <span class="o">*</span> <span class="n">pparray_get_array</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">pparray_get_dict</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="o">//</span><span class="n">PPAPI</span> <span class="n">ppstream</span> <span class="o">*</span> <span class="n">pparray_get_stream</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">pparray_get_ref</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> + +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">pparray_rget_obj</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_rget_bool</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_rget_int</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_rget_uint</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppuint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pparray_rget_num</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">,</span> <span class="n">ppnum</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppname</span> <span class="n">pparray_rget_name</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstring</span> <span class="n">pparray_rget_string</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">pparray</span> <span class="o">*</span> <span class="n">pparray_rget_array</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">pparray_rget_dict</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstream</span> <span class="o">*</span> <span class="n">pparray_rget_stream</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">pparray_rget_ref</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">index</span><span class="p">);</span> + +<span class="o">/*</span> <span class="nb">dict</span> <span class="o">*/</span> + +<span class="c1">#define ppdict_size(dict) ((dict)->size)</span> +<span class="c1">#define ppdict_at(dict, index) ((dict)->data + index)</span> +<span class="c1">#define ppdict_key(dict, index) ((dict)->keys[index])</span> + +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppdict_get_obj</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_get_bool</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_get_int</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_get_uint</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppuint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_get_num</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppnum</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppname</span> <span class="n">ppdict_get_name</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstring</span> <span class="n">ppdict_get_string</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">pparray</span> <span class="o">*</span> <span class="n">ppdict_get_array</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppdict_get_dict</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="o">//</span><span class="n">PPAPI</span> <span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppdict_get_stream</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdict_get_ref</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> + +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppdict_rget_obj</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_rget_bool</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_rget_int</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_rget_uint</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppuint</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdict_rget_num</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppnum</span> <span class="o">*</span><span class="n">v</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppname</span> <span class="n">ppdict_rget_name</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstring</span> <span class="n">ppdict_rget_string</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">pparray</span> <span class="o">*</span> <span class="n">ppdict_rget_array</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppdict_rget_dict</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppdict_rget_stream</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdict_rget_ref</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">);</span> + +<span class="c1">#define ppdict_first(dict, pkey, obj) (pkey = (dict)->keys, obj = (dict)->data)</span> +<span class="c1">#define ppdict_next(pkey, obj) (++(pkey), ++(obj))</span> + +<span class="o">/*</span> <span class="n">stream</span> <span class="o">*/</span> + +<span class="c1">#define ppstream_dict(stream) ((stream)->dict)</span> + +<span class="n">PPAPI</span> <span class="n">uint8_t</span> <span class="o">*</span> <span class="n">ppstream_first</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">size</span><span class="p">,</span> <span class="nb">int</span> <span class="n">decode</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">uint8_t</span> <span class="o">*</span> <span class="n">ppstream_next</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">size</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">uint8_t</span> <span class="o">*</span> <span class="n">ppstream_all</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">size</span><span class="p">,</span> <span class="nb">int</span> <span class="n">decode</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppstream_done</span> <span class="p">(</span><span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">);</span> + +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppstream_init_buffers</span> <span class="p">(</span><span class="n">void</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppstream_free_buffers</span> <span class="p">(</span><span class="n">void</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">ref</span> <span class="o">*/</span> + +<span class="c1">#define ppref_obj(ref) (&(ref)->object)</span> + +<span class="o">/*</span> <span class="n">xref</span> <span class="o">*/</span> + +<span class="n">PPAPI</span> <span class="n">ppxref</span> <span class="o">*</span> <span class="n">ppdoc_xref</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppxref</span> <span class="o">*</span> <span class="n">ppxref_prev</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppxref_trailer</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppxref_catalog</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdict</span> <span class="o">*</span> <span class="n">ppxref_info</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppxref_pages</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppxref_find</span> <span class="p">(</span><span class="n">ppxref</span> <span class="o">*</span><span class="n">xref</span><span class="p">,</span> <span class="n">ppuint</span> <span class="n">refnumber</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">doc</span> <span class="o">*/</span> + +<span class="n">PPAPI</span> <span class="n">ppdoc</span> <span class="o">*</span> <span class="n">ppdoc_load</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">filename</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppdoc</span> <span class="o">*</span> <span class="n">ppdoc_mem</span> <span class="p">(</span><span class="n">const</span> <span class="n">void</span> <span class="o">*</span><span class="n">data</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">size</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppdoc_free</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> + +<span class="c1">#define ppdoc_trailer(pdf) ppxref_trailer(ppdoc_xref(pdf))</span> +<span class="c1">#define ppdoc_catalog(pdf) ppxref_catalog(ppdoc_xref(pdf))</span> +<span class="c1">#define ppdoc_info(pdf) ppxref_info(ppdoc_xref(pdf))</span> +<span class="c1">#define ppdoc_pages(pdf) ppxref_pages(ppdoc_xref(pdf))</span> + +<span class="n">PPAPI</span> <span class="n">ppuint</span> <span class="n">ppdoc_page_count</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_page</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="n">ppuint</span> <span class="n">index</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_first_page</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppref</span> <span class="o">*</span> <span class="n">ppdoc_next_page</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> + +<span class="n">PPAPI</span> <span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppcontents_first</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppstream</span> <span class="o">*</span> <span class="n">ppcontents_next</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">crypt</span> <span class="o">*/</span> + +<span class="n">typedef</span> <span class="n">enum</span> <span class="p">{</span> + <span class="n">PPCRYPT_NONE</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> + <span class="n">PPCRYPT_DONE</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span> + <span class="n">PPCRYPT_FAIL</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> + <span class="n">PPCRYPT_PASS</span> <span class="o">=</span> <span class="o">-</span><span class="mi">2</span> +<span class="p">}</span> <span class="n">ppcrypt_status</span><span class="p">;</span> + +<span class="n">PPAPI</span> <span class="n">ppcrypt_status</span> <span class="n">ppdoc_crypt_status</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppcrypt_status</span> <span class="n">ppdoc_crypt_pass</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="n">const</span> <span class="n">void</span> <span class="o">*</span><span class="n">userpass</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">userpasslength</span><span class="p">,</span> <span class="n">const</span> <span class="n">void</span> <span class="o">*</span><span class="n">ownerpass</span><span class="p">,</span> <span class="n">size_t</span> <span class="n">ownerpasslength</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">permission</span> <span class="n">flags</span><span class="p">,</span> <span class="n">effect</span> <span class="ow">in</span> <span class="n">Acrobat</span> <span class="n">File</span> <span class="o">-></span> <span class="n">Properties</span> <span class="o">-></span> <span class="n">Security</span> <span class="n">tab</span> <span class="o">*/</span> + +<span class="n">PPAPI</span> <span class="n">ppint</span> <span class="n">ppdoc_permissions</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> + +<span class="c1">#define PPDOC_ALLOW_PRINT (1<<2) // printing</span> +<span class="c1">#define PPDOC_ALLOW_MODIFY (1<<3) // filling form fields, signing, creating template pages</span> +<span class="c1">#define PPDOC_ALLOW_COPY (1<<4) // copying, copying for accessibility</span> +<span class="c1">#define PPDOC_ALLOW_ANNOTS (1<<5) // filling form fields, copying, signing</span> +<span class="c1">#define PPDOC_ALLOW_EXTRACT (1<<9) // contents copying for accessibility</span> +<span class="c1">#define PPDOC_ALLOW_ASSEMBLY (1<<10) // (no effect)</span> +<span class="c1">#define PPDOC_ALLOW_PRINT_HIRES (1<<11) // (no effect)</span> + +<span class="o">/*</span> <span class="n">context</span> <span class="o">*/</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="n">ppcontext</span> <span class="n">ppcontext</span><span class="p">;</span> + +<span class="n">PPAPI</span> <span class="n">ppcontext</span> <span class="o">*</span> <span class="n">ppcontext_new</span> <span class="p">(</span><span class="n">void</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppcontext_done</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">ppcontext_free</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">contents</span> <span class="n">parser</span> <span class="o">*/</span> + +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppcontents_first_op</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">psize</span><span class="p">,</span> <span class="n">ppname</span> <span class="o">*</span><span class="n">pname</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppcontents_next_op</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">psize</span><span class="p">,</span> <span class="n">ppname</span> <span class="o">*</span><span class="n">pname</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppobj</span> <span class="o">*</span> <span class="n">ppcontents_parse</span> <span class="p">(</span><span class="n">ppcontext</span> <span class="o">*</span><span class="n">context</span><span class="p">,</span> <span class="n">ppstream</span> <span class="o">*</span><span class="n">stream</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">psize</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">boxes</span> <span class="ow">and</span> <span class="n">transforms</span> <span class="o">*/</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppnum</span> <span class="n">lx</span><span class="p">,</span> <span class="n">ly</span><span class="p">,</span> <span class="n">rx</span><span class="p">,</span> <span class="n">ry</span><span class="p">;</span> +<span class="p">}</span> <span class="n">pprect</span><span class="p">;</span> + +<span class="n">PPAPI</span> <span class="n">pprect</span> <span class="o">*</span> <span class="n">pparray_to_rect</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">pprect</span> <span class="o">*</span><span class="n">rect</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">pprect</span> <span class="o">*</span> <span class="n">ppdict_get_rect</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">pprect</span> <span class="o">*</span><span class="n">rect</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">pprect</span> <span class="o">*</span> <span class="n">ppdict_get_box</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">pprect</span> <span class="o">*</span><span class="n">rect</span><span class="p">);</span> + +<span class="n">typedef</span> <span class="n">struct</span> <span class="p">{</span> + <span class="n">ppnum</span> <span class="n">xx</span><span class="p">,</span> <span class="n">xy</span><span class="p">,</span> <span class="n">yx</span><span class="p">,</span> <span class="n">yy</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">;</span> +<span class="p">}</span> <span class="n">ppmatrix</span><span class="p">;</span> + +<span class="n">PPAPI</span> <span class="n">ppmatrix</span> <span class="o">*</span> <span class="n">pparray_to_matrix</span> <span class="p">(</span><span class="n">pparray</span> <span class="o">*</span><span class="n">array</span><span class="p">,</span> <span class="n">ppmatrix</span> <span class="o">*</span><span class="n">matrix</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppmatrix</span> <span class="o">*</span> <span class="n">ppdict_get_matrix</span> <span class="p">(</span><span class="n">ppdict</span> <span class="o">*</span><span class="nb">dict</span><span class="p">,</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">name</span><span class="p">,</span> <span class="n">ppmatrix</span> <span class="o">*</span><span class="n">matrix</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">logger</span> <span class="o">*/</span> + +<span class="n">typedef</span> <span class="n">void</span> <span class="p">(</span><span class="o">*</span><span class="n">pplogger_callback</span><span class="p">)</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">message</span><span class="p">,</span> <span class="n">void</span> <span class="o">*</span><span class="n">alien</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">void</span> <span class="n">pplog_callback</span> <span class="p">(</span><span class="n">pplogger_callback</span> <span class="n">logger</span><span class="p">,</span> <span class="n">void</span> <span class="o">*</span><span class="n">alien</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">pplog_prefix</span> <span class="p">(</span><span class="n">const</span> <span class="n">char</span> <span class="o">*</span><span class="n">prefix</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">version</span> <span class="o">*/</span> + +<span class="n">PPAPI</span> <span class="n">const</span> <span class="n">char</span> <span class="o">*</span> <span class="n">ppdoc_version_string</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="nb">int</span> <span class="n">ppdoc_version_number</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="nb">int</span> <span class="o">*</span><span class="n">minor</span><span class="p">);</span> + +<span class="o">/*</span> <span class="n">doc</span> <span class="n">info</span> <span class="o">*/</span> + +<span class="n">PPAPI</span> <span class="n">size_t</span> <span class="n">ppdoc_file_size</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">ppuint</span> <span class="n">ppdoc_objects</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">);</span> +<span class="n">PPAPI</span> <span class="n">size_t</span> <span class="n">ppdoc_memory</span> <span class="p">(</span><span class="n">ppdoc</span> <span class="o">*</span><span class="n">pdf</span><span class="p">,</span> <span class="n">size_t</span> <span class="o">*</span><span class="n">waste</span><span class="p">);</span> + +<span class="c1">#endif</span> +</pre></div> +</div> +</div> +</div> +<div class="section" id="changes"> +<h1>Changes<a class="headerlink" href="#changes" title="Permalink to this headline">¶</a></h1> +<div class="section" id="v0-97"> +<h2>v0.97<a class="headerlink" href="#v0-97" title="Permalink to this headline">¶</a></h2> +<p>First release integrated with luatex sources, plus portability changes from Luigi.</p> +</div> +<div class="section" id="v0-98"> +<h2>v0.98<a class="headerlink" href="#v0-98" title="Permalink to this headline">¶</a></h2> +<p>Changed references resolving in case of incremental updates; tech notes ppxref_find() in ppxref.c.</p> +</div> +<div class="section" id="v0-99"> +<h2>v0.99<a class="headerlink" href="#v0-99" title="Permalink to this headline">¶</a></h2> +<p>Fixed streams handling; null characters should NOT be gobbled after “stream†keyword</p> +</div> +<div class="section" id="v1-00"> +<h2>v1.00<a class="headerlink" href="#v1-00" title="Permalink to this headline">¶</a></h2> +<p>Fixed streams handling (Luigi); object streams updated before other streams +Revised streams handling, ppstream API extended</p> +</div> +<div class="section" id="v1-01"> +<h2>v1.01<a class="headerlink" href="#v1-01" title="Permalink to this headline">¶</a></h2> +<p>Fixed names handling (thanks Hans); digits after ‘#’ weren’t skipped</p> +</div> +<div class="section" id="v1-02"> +<h2>v1.02<a class="headerlink" href="#v1-02" title="Permalink to this headline">¶</a></h2> +<p>Fixed page finder (thanks Luigi)</p> +</div> +<div class="section" id="v1-03"> +<h2>v1.03<a class="headerlink" href="#v1-03" title="Permalink to this headline">¶</a></h2> +<p>Fixed TIFF predictor (thanks folks)</p> +</div> +<div class="section" id="v1-04"> +<h2>v1.04<a class="headerlink" href="#v1-04" title="Permalink to this headline">¶</a></h2> +<p>Fixed TIFF predictor for ARM</p> +</div> +</div> +<div class="section" id="todo"> +<h1>TODO<a class="headerlink" href="#todo" title="Permalink to this headline">¶</a></h1> +<ul class="simple"> +<li>external streams (egzotic)</li> +</ul> +</div> + + + </div> + </div> + </div> + <div class="clearer"></div> + </div> + <div class="related" role="navigation" aria-label="related navigation"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + >index</a></li> + <li class="right" > + <a href="ppapi.html" title="pplib" + >previous</a> |</li> + <li class="nav-item nav-item-0"><a href="pplib.html">pplib 0.1 documentation</a> 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\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/html/pplib.html b/Build/source/texk/web2c/luatexdir/luapplib/html/pplib.html new file mode 100644 index 00000000000..add2b726adf --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/html/pplib.html @@ -0,0 +1,140 @@ + + +<!doctype html> + +<html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> + <title>pplib — pplib 0.1 documentation</title> + <link rel="stylesheet" href="_static/bizstyle.css" type="text/css" /> + <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> + <script type="text/javascript" src="_static/documentation_options.js"></script> + <script type="text/javascript" src="_static/jquery.js"></script> + <script type="text/javascript" src="_static/underscore.js"></script> + <script type="text/javascript" src="_static/doctools.js"></script> + 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class="topless"><a href="ppapi.html" + title="next chapter"><code class="docutils literal notranslate"><span class="pre">pplib</span></code></a></p> + <div role="note" aria-label="source link"> + <h3>This Page</h3> + <ul class="this-page-menu"> + <li><a href="_sources/pplib.rst.txt" + rel="nofollow">Show Source</a></li> + </ul> + </div> +<div id="searchbox" style="display: none" role="search"> + <h3>Quick search</h3> + <div class="searchformwrapper"> + <form class="search" action="search.html" method="get"> + <input type="text" name="q" /> + <input type="submit" value="Go" /> + <input type="hidden" name="check_keywords" value="yes" /> + <input type="hidden" name="area" value="default" /> + </form> + </div> +</div> +<script type="text/javascript">$('#searchbox').show(0);</script> + </div> + </div> + + <div class="document"> + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body" role="main"> + + <div class="section" id="pplib"> +<h1>pplib<a class="headerlink" href="#pplib" title="Permalink to this headline">¶</a></h1> +<div class="toctree-wrapper compound"> +<ul> +<li class="toctree-l1"><a class="reference internal" href="ppapi.html"><code class="docutils literal notranslate"><span class="pre">pplib</span></code></a></li> +<li class="toctree-l1"><a class="reference internal" href="ppapi.html#c-api">C-API</a><ul> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#types">Types</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#object">Object</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#names">Names</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#string">String</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#array">Array</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#dict">Dict</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#stream">Stream</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#filters">Filters</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#ref">Ref</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#xref">XRef</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#pdf">PDF</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#encryption">Encryption</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#pages">Pages</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#contents">Contents</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#boxes">Boxes</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#transforms">Transforms</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppapi.html#errors-handling">Errors handling</a></li> +</ul> +</li> +<li class="toctree-l1"><a class="reference internal" href="ppcode.html">Examples</a><ul> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#example-1">Example 1</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#example-2">Example 2</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#example-3">Example 3</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#ppapi-h">ppapi.h</a></li> +</ul> +</li> +<li class="toctree-l1"><a class="reference internal" href="ppcode.html#changes">Changes</a><ul> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#v0-97">v0.97</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#v0-98">v0.98</a></li> +<li class="toctree-l2"><a class="reference internal" href="ppcode.html#v0-99">v0.99</a></li> +<li class="toctree-l2"><a class="reference internal" 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\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h b/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h index 6d591ca05fb..a61ca04a089 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppapi.h @@ -8,7 +8,7 @@ #include "ppconf.h" -#define pplib_version "v0.97" +#define pplib_version "v1.03" #define pplib_author "p.jackowski@gust.org.pl" /* types */ @@ -34,7 +34,7 @@ typedef struct ppobj ppobj; typedef struct ppref ppref; -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT typedef struct { ppobj *data; size_t size; @@ -48,7 +48,7 @@ typedef struct { #endif -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT typedef struct { ppobj *data; ppname *keys; @@ -64,23 +64,51 @@ typedef struct { } ppdict; #endif +typedef enum { + PPSTREAM_BASE16 = 0, + PPSTREAM_BASE85, + PPSTREAM_RUNLENGTH, + PPSTREAM_FLATE, + PPSTREAM_LZW, + PPSTREAM_CCITT, + PPSTREAM_DCT, + PPSTREAM_JBIG2, + PPSTREAM_JPX, + PPSTREAM_CRYPT +} ppstreamtp; + +typedef struct { + ppstreamtp *filters; + ppdict **params; + size_t count; +} ppstream_filter; typedef struct { ppdict *dict; void *input, *I; size_t offset; size_t length; + ppstream_filter filter; + ppobj *filespec; ppstring cryptkey; int flags; } ppstream; -#define PPSTREAM_COMPRESSED (1<<0) -#define PPSTREAM_ENCRYPTED_AES (1<<1) -#define PPSTREAM_ENCRYPTED_RC4 (1<<2) +PPDEF extern const char * ppstream_filter_name[]; +PPAPI int ppstream_filter_type (ppname filtername, ppstreamtp *filtertype); +PPAPI void ppstream_filter_info (ppstream *stream, ppstream_filter *info, int decode); + +#define PPSTREAM_FILTER (1<<0) +#define PPSTREAM_IMAGE (1<<1) +#define PPSTREAM_ENCRYPTED_AES (1<<2) +#define PPSTREAM_ENCRYPTED_RC4 (1<<3) #define PPSTREAM_ENCRYPTED (PPSTREAM_ENCRYPTED_AES|PPSTREAM_ENCRYPTED_RC4) -#define PPSTREAM_ENCRYPTED_OWN (1<<3) +#define PPSTREAM_ENCRYPTED_OWN (1<<4) +#define PPSTREAM_NOT_SUPPORTED (1<<6) -#define ppstream_compressed(stream) ((stream)->flags & PPSTREAM_COMPRESSED) +#define ppstream_compressed(stream) ((stream)->flags & (PPSTREAM_FILTER|PPSTREAM_IMAGE)) +#define ppstream_filtered(stream) ((stream)->flags & PPSTREAM_FILTER) +#define ppstream_image(stream) ((stream)->flags & PPSTREAM_IMAGE) #define ppstream_encrypted(stream) ((stream)->flags & PPSTREAM_ENCRYPTED) typedef enum { @@ -162,7 +190,7 @@ typedef struct ppdoc ppdoc; #define ppname_is(name, s) (memcmp(name, s, sizeof("" s) - 1) == 0) #define ppname_eq(name, n) (memcmp(name, s, ppname_size(name)) == 0) -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define _ppname_ghost(name) (((const _ppname *)((void *)name)) - 1) #else #define _ppname_ghost(name) (((const _ppname *)(name)) - 1) @@ -180,7 +208,7 @@ PPAPI ppname ppname_encoded (ppname name); /* string */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define _ppstring_ghost(string) (((const _ppstring *)((void *)string)) - 1) #else #define _ppstring_ghost(string) (((const _ppstring *)(string)) - 1) diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppconf.h b/Build/source/texk/web2c/luatexdir/luapplib/ppconf.h index 57edc205a54..85d6dcb13a6 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppconf.h +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppconf.h @@ -2,6 +2,14 @@ #ifndef PP_CONF_H #define PP_CONF_H +//#include "utilarm.h" // keep in sync +#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ ||( defined(__sun) && defined(__SVR4))
+# define ARM_COMPLIANT 1
+#else
+# define ARM_COMPLIANT 0
+#endif
+ + /* Aux flags: PPDLL -- indicates a part of a shared library diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.c b/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.c index 780ec78be12..faab9af51c3 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.c @@ -6,11 +6,6 @@ /* crypt struct */ -#define CRYPT_AES (1<<0) -#define CRYPT_RC4 (1<<1) -#define CRYPT_MD (1<<2) -#define CRYPT_NOMD (1<<3) - static ppcrypt * ppcrypt_create (ppheap **pheap) { ppcrypt *crypt; @@ -19,7 +14,7 @@ static ppcrypt * ppcrypt_create (ppheap **pheap) return crypt; } -static int ppcrypt_type (ppcrypt *crypt, ppname cryptname, ppuint *length, int *cryptflags) +int ppcrypt_type (ppcrypt *crypt, ppname cryptname, ppuint *length, int *cryptflags) { ppdict *filterdict; ppname filtertype; @@ -31,21 +26,21 @@ static int ppcrypt_type (ppcrypt *crypt, ppname cryptname, ppuint *length, int * return 0; *cryptflags = 0; if (ppname_is(filtertype, "V2")) - *cryptflags |= CRYPT_RC4; + *cryptflags |= PPCRYPT_INFO_RC4; else if (ppname_is(filtertype, "AESV2")) - *cryptflags |= CRYPT_AES; + *cryptflags |= PPCRYPT_INFO_AES; else if (ppname_is(filtertype, "AESV3")) - *cryptflags |= CRYPT_AES, default256 = 1; + *cryptflags |= PPCRYPT_INFO_AES, default256 = 1; else return 0; /* pdf spec page. 134: /Length is said to be optional bit-length of the key, but it seems to be a mistake, as Acrobat produces /Length key with bytes lengths, opposite to /Length key of the main encrypt dict. */ if (length != NULL) if (!ppdict_get_uint(filterdict, "Length", length)) - *length = (*cryptflags & CRYPT_RC4) ? 5 : (default256 ? 32 : 16); + *length = (*cryptflags & PPCRYPT_INFO_RC4) ? 5 : (default256 ? 32 : 16); /* one of metadata flags is set iff there is an explicit EncryptMetadata key */ if (ppdict_get_bool(filterdict, "EncryptMetadata", &cryptmd)) - *cryptflags |= (cryptmd ? CRYPT_MD : CRYPT_NOMD); + *cryptflags |= (cryptmd ? PPCRYPT_INFO_MD : PPCRYPT_INFO_NOMD); return 1; } @@ -296,21 +291,21 @@ ppcrypt_status ppdoc_crypt_init (ppdoc *pdf, const void *userpass, size_t userpa /* streams filter */ if ((name = ppdict_get_name(encrypt, "StmF")) != NULL && ppcrypt_type(crypt, name, &stmkeylength, &cryptflags)) { - if (cryptflags & CRYPT_AES) + if (cryptflags & PPCRYPT_INFO_AES) crypt->flags |= PPCRYPT_STREAM_AES; - else if (cryptflags & CRYPT_RC4) + else if (cryptflags & PPCRYPT_INFO_RC4) crypt->flags |= PPCRYPT_STREAM_RC4; - if (cryptflags & CRYPT_NOMD) + if (cryptflags & PPCRYPT_INFO_NOMD) crypt->flags |= PPCRYPT_NO_METADATA; - else if (cryptflags & CRYPT_MD) + else if (cryptflags & PPCRYPT_INFO_MD) crypt->flags &= ~PPCRYPT_NO_METADATA; } /* else identity */ /* strings filter */ if ((name = ppdict_get_name(encrypt, "StrF")) != NULL && ppcrypt_type(crypt, name, &strkeylength, &cryptflags)) { - if (cryptflags & CRYPT_AES) + if (cryptflags & PPCRYPT_INFO_AES) crypt->flags |= PPCRYPT_STRING_AES; - else if (cryptflags & CRYPT_RC4) + else if (cryptflags & PPCRYPT_INFO_RC4) crypt->flags |= PPCRYPT_STRING_RC4; } /* else identity */ @@ -489,7 +484,7 @@ Since streams and strings might theoretically be encrypted with different filter decryption state here. */ -static ppstring ppcrypt_stmkey (ppcrypt *crypt, ppref *ref, int aes, ppheap **pheap) +ppstring ppcrypt_stmkey (ppcrypt *crypt, ppref *ref, int aes, ppheap **pheap) { ppstring cryptkeystring; //if (crypt->cryptkeylength > 0) @@ -522,107 +517,3 @@ static ppstring ppcrypt_stmkey (ppcrypt *crypt, ppref *ref, int aes, ppheap **ph cryptkeystring = ppstring_internal(crypt->cryptkey, crypt->cryptkeylength, pheap); return ppstring_decoded(cryptkeystring); } - -void ppstream_info (ppstream *stream, ppdoc *pdf) -{ // just after the stream creation - ppdict *dict; - ppobj *fobj, *pobj; - pparray *farray; - ppname fname, owncryptfilter, tname; - ppcrypt *crypt; - ppref *ref; - size_t i; - int owncrypt, cflags; - - dict = stream->dict; - ppdict_rget_uint(dict, "Length", &stream->length); - - if ((fobj = ppdict_get_obj(dict, "Filter")) != NULL) - { - fobj = ppobj_preloaded(pdf, fobj); - switch (fobj->type) - { - case PPNAME: - stream->flags |= PPSTREAM_COMPRESSED; - break; - case PPARRAY: - if (fobj->array->size > 0) - stream->flags |= PPSTREAM_COMPRESSED; - break; - default: - break; - } - } - if ((crypt = pdf->crypt) == NULL || (ref = crypt->ref) == NULL) - return; - owncrypt = 0; - owncryptfilter = NULL; - if (fobj != NULL) - { - if ((pobj = ppdict_get_obj(dict, "DecodeParms")) != NULL) - pobj = ppobj_preloaded(pdf, pobj); - switch (fobj->type) - { - case PPNAME: - if (ppname_is(fobj->name, "Crypt")) - { - owncrypt = 1; - if (pobj != NULL && pobj->type == PPDICT) // /Type /CryptFilterDecodeParms - owncryptfilter = ppdict_get_name(pobj->dict, "Name"); - } - break; - case PPARRAY: - farray = fobj->array; - for (i = 0; i < farray->size; ++i) - { - if ((fname = pparray_get_name(farray, i)) != NULL && ppname_is(fname, "Crypt")) - { - owncrypt = 1; - if (pobj != NULL && pobj->type == PPARRAY && (pobj = pparray_get_obj(pobj->array, i)) != NULL) - { - pobj = ppobj_preloaded(pdf, pobj); - if (pobj != NULL && pobj->type == PPDICT) // /Type /CryptFilterDecodeParms - owncryptfilter = ppdict_get_name(pobj->dict, "Name"); - } - break; - } - } - break; - default: - break; - } - } - - if (owncrypt) - { - stream->flags |= PPSTREAM_ENCRYPTED_OWN; - /* Seems a common habit to use just /Crypt filter name with no params, which defaults to /Identity. - A real example with uncompressed metadata: <</Filter[/Crypt]/Length 4217/Subtype/XML/Type/Metadata>> */ - if (owncryptfilter != NULL && !ppname_is(owncryptfilter, "Identity")) - { - if (crypt->map != NULL && ppcrypt_type(crypt, owncryptfilter, NULL, &cflags)) - { - if (cflags & CRYPT_AES) - stream->flags |= PPSTREAM_ENCRYPTED_AES; - else if (cflags & CRYPT_RC4) - stream->flags |= PPSTREAM_ENCRYPTED_RC4; - } - } - } - else - { - if ((crypt->flags & PPCRYPT_NO_METADATA) && (tname = ppdict_get_name(dict, "Type")) != NULL && ppname_is(tname, "Metadata")) - ; /* special treatment of metadata stream; we assume that explicit /Filter /Crypt setup overrides document level setup of EncryptMetadata. */ - else - { - if (crypt->flags & PPCRYPT_STREAM_RC4) - stream->flags |= PPSTREAM_ENCRYPTED_RC4; - else if (crypt->flags & PPCRYPT_STREAM_AES) - stream->flags |= PPSTREAM_ENCRYPTED_AES; - } - } - - /* finally, if the stream is encrypted with non-identity crypt (implicit or explicit), make and save the crypt key */ - if (stream->flags & PPSTREAM_ENCRYPTED) - stream->cryptkey = ppcrypt_stmkey(crypt, ref, ((stream->flags & PPSTREAM_ENCRYPTED_AES) != 0), &pdf->heap); -} diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.h b/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.h index fc74cfe37ed..ae8cdbdbc60 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.h +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppcrypt.h @@ -49,6 +49,11 @@ typedef struct { #define PPCRYPT_RC4 (PPCRYPT_STREAM_RC4|PPCRYPT_STRING_RC4) #define PPCRYPT_AES (PPCRYPT_STREAM_AES|PPCRYPT_STRING_AES) +#define PPCRYPT_INFO_AES (1<<0) +#define PPCRYPT_INFO_RC4 (1<<1) +#define PPCRYPT_INFO_MD (1<<2) +#define PPCRYPT_INFO_NOMD (1<<3) + ppcrypt_status ppdoc_crypt_init (ppdoc *pdf, const void *userpass, size_t userpasslength, const void *ownerpass, size_t ownerpasslength); int ppstring_decrypt (ppcrypt *crypt, const void *input, size_t size, void *output, size_t *newsize); @@ -56,6 +61,7 @@ int ppstring_decrypt (ppcrypt *crypt, const void *input, size_t size, void *outp #define ppcrypt_end_ref(crypt) ((crypt)->ref = NULL, (crypt)->cryptkeylength = 0) #define ppcrypt_ref(pdf, crypt) ((crypt = (pdf)->crypt) != NULL && crypt->ref != NULL) -void ppstream_info (ppstream *stream, ppdoc *pdf); +int ppcrypt_type (ppcrypt *crypt, ppname cryptname, ppuint *length, int *cryptflags); +ppstring ppcrypt_stmkey (ppcrypt *crypt, ppref *ref, int aes, ppheap **pheap); #endif
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppheap.c b/Build/source/texk/web2c/luatexdir/luapplib/ppheap.c index f05e1b7a5df..d2a885b5352 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppheap.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppheap.c @@ -7,12 +7,14 @@ #define ppheap_head(heap) ((uint8_t *)((heap) + 1)) -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT # define PPHEAP_ARCH_ARM # define PPHEAP_NEED_ALIGNMENT #endif - +#if defined(__sun) && defined(__SVR4) +# define PPHEAP_NEED_ALIGNMENT +#endif #ifdef PPHEAP_NEED_ALIGNMENT /* Tests has shown that long double seems to work: */ @@ -276,6 +278,10 @@ void * ppheap_take (ppheap **pheap, size_t size) #ifdef PPHEAP_NEED_ALIGNMENT /* Todo: only if data%sizeof(aligned_data) != 0 */ p_aligned_data = malloc(size); + if (!p_aligned_data) { + fprintf(stderr,"! fatal error: unable to setup aligned pointer for ppheap_take\n"); + exit(EXIT_FAILURE); + } memcpy(p_aligned_data,data,size); align_save_into_set(p_aligned_data); return (void *)p_aligned_data; @@ -410,6 +416,10 @@ void * ppheap_flush (iof *O, size_t *psize) // not from explicit ppheap ** !!! #ifdef PPHEAP_NEED_ALIGNMENT /* Todo: only if data%sizeof(aligned_data) != 0 */ p_aligned_data = malloc(size); + if (!p_aligned_data) { + fprintf(stderr,"! fatal error: unable to setup aligned pointer for ppheap_flush\n"); + exit(EXIT_FAILURE); + } memcpy(p_aligned_data,data,size); align_save_into_set(p_aligned_data); return (void *)p_aligned_data; diff --git a/Build/source/texk/web2c/luatexdir/luapplib/pplib.h b/Build/source/texk/web2c/luatexdir/luapplib/pplib.h index e753cfa0514..a3bf1eb180a 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/pplib.h +++ b/Build/source/texk/web2c/luatexdir/luapplib/pplib.h @@ -9,6 +9,7 @@ #include "utiliof.h" #include "utillog.h" +#include "utilarm.h" #include "ppapi.h" #include "ppheap.h" diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppload.c b/Build/source/texk/web2c/luatexdir/luapplib/ppload.c index 0ad286e5769..14b8bca1992 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppload.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppload.c @@ -70,7 +70,7 @@ const char ppname_byte_lookup[] = { (ppname)(ghost + 1)) -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define ppname_set_alter_ego(name, ghost, ego) do {\ ppname temp;\ ppname *temp1;\ @@ -82,7 +82,7 @@ const char ppname_byte_lookup[] = { #define ppname_set_alter_ego(name, ghost, ego) (*((ppname *)(name + (ghost)->size + 1)) = ego) #endif -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define ppname_get_alter_ego(name) (*((ppname *)( (void*)(name + ppname_size(name) + 1)))) #else #define ppname_get_alter_ego(name) (*((ppname *)(name + ppname_size(name) + 1))) @@ -114,11 +114,13 @@ static ppname ppscan_name (iof *I, ppheap **pheap) O = ppheap_buffer(pheap, sizeof(_ppname), PPNAME_INIT); for (p = encoded, e = encoded + ghost1->size; p < e; ++p) { - if (*p == '#' && p + 2 < e ){ + if (*p == '#' && p + 2 < e) { v1 = base16_value(p[1]); v2 = base16_value(p[2]); iof_put(O, ((v1<<4)+v2)); - }else + p += 2; + } + else iof_put(O, *p); } decoded = ppname_flush_with_ego(O, ghost2, size, 0|PPNAME_DECODED); @@ -151,11 +153,13 @@ static ppname ppscan_exec (iof *I, ppheap **pheap, int first) O = ppheap_buffer(pheap, sizeof(_ppname), PPNAME_INIT); for (p = encoded, e = encoded + ghost1->size; p < e; ++p) { - if (*p == '#' && p + 2 < e ){ + if (*p == '#' && p + 2 < e) { v1 = base16_value(p[1]); v2 = base16_value(p[2]); iof_put(O, ((v1<<4)+v2)); - }else + p += 2; + } + else iof_put(O, *p); } decoded = ppname_flush_with_ego(O, ghost2, size, PPNAME_EXEC|PPNAME_DECODED); @@ -221,14 +225,14 @@ ppname ppname_encoded (ppname name) -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define ppstring_set_alter_ego(string, ghost, ego) (*((ppstring *)((void *)(string + (ghost)->size + 1))) = ego) #else #define ppstring_set_alter_ego(string, ghost, ego) (*((ppstring *)(string + (ghost)->size + 1)) = ego) #endif -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define ppstring_get_alter_ego(string) (*((ppstring *)((void *)(string + ppstring_size(string) + 1)))) #else #define ppstring_get_alter_ego(string) (*((ppstring *)(string + ppstring_size(string) + 1))) @@ -1391,14 +1395,18 @@ static int ppscan_start_stream (iof *I, ppdoc *pdf, size_t *streamoffset) int c; ppscan_find(I); if (ppscan_key(I, "stream")) - { // skip 1 or 2 whites (here we shouldn't just gobble all blanks) + { // PJ20180912 bugfix: we were gobbling white characters (also null byte), while "stream" may be followed by EOL + // pdf spec page 60: "CARRIAGE RETURN and a LINE FEED or just a LINE FEED, and not by a CARRIAGE RETURN alone" c = iof_char(I); - if (ignored_char(c)) + if (c == 0x0D) { - c = iof_next(I); - if (ignored_char(c)) + if (iof_next(I) == 0x0A) // should be ++I->pos; } + else if (c == 0x0A) + { + ++I->pos; + } *streamoffset = ppdoc_reader_tell(pdf, I); return 1; } @@ -1557,12 +1565,7 @@ static ppxref * ppxref_load_stream (iof *I, ppdoc *pdf, size_t xrefoffset) if (obj->type != PPDICT || !ppscan_start_stream(I, pdf, &streamoffset)) return NULL; xrefstream = ppstream_create(pdf, obj->dict, streamoffset); - /* All normal streams go through ppstream_info(), but it makes no sense for trailer stream (no crypt allowed, no refs yet). - So we just record the length and informative flag. Here we have to expect that /Length and /Filter are not indirects. */ - if (!ppdict_get_uint(obj->dict, "Length", &xrefstream->length)) - return NULL; - if (ppdict_get_obj(obj->dict, "Filter") != NULL) - xrefstream->flags |= PPSTREAM_COMPRESSED; + ppstream_info(xrefstream, pdf); if ((fieldwidths = ppdict_get_array(xrefstream->dict, "W")) != NULL) { if (!pparray_get_uint(fieldwidths, 0, &w1)) w1 = 0; @@ -1776,23 +1779,34 @@ Here is the proc: - estimate object length to avoid fread-ing more than necessary (not perfect but enough) - fseek() to the proper offset, fread() entry data or its part - parse the object with ppscan_obj(I, pdf, xref), where xref is not necessarily top pdf->xref - - save the actual ref->length (not sure if we need that?) + (since v0.98 xref actually no longer matters, see xref_find() notes) + - save the actual ref->length (not used so far, but we keep that so..) - make a stream if a dict is followed by "stream" keyword, also save the stream offset - free the list + +PJ2080916: Luigi and Hans fixeed a bug (rev 6491); a document having a stream with /Length being +a reference, that was stored in /ObjStm, and therefore not yet resolved when caching /Length key +value as stream->offset (ppstream_info()). At the end, references were resolved propertly, but +the stream was no readable; stream->offset == 0. In rev6491 ObjStm streams are loaded before +others streams. */ static int ppdoc_load_objstm (ppstream *stream, ppdoc *pdf, ppxref *xref); +#define ppref_is_objstm(ref, stream, type) \ + ((ref)->xref->trailer.type == PPSTREAM && (type = ppdict_get_name((stream)->dict, "Type")) != NULL && ppname_is(type, "ObjStm")) + + static void ppdoc_load_entries (ppdoc *pdf) { size_t objects, sectionindex, refnumber, offindex; + size_t streams = 0, object_streams = 0, redundant_indirections = 0; ppnum linearized; ppref **offmap, **pref, *ref; ppxref *xref; ppxsec *xsec; ppobj *obj; ppname type; - int redundant_indirection = 0; ppcrypt *crypt; ppstream *stream; @@ -1835,34 +1849,65 @@ static void ppdoc_load_entries (ppdoc *pdf) if (offindex == 1 && ppdict_get_num(obj->dict, "Linearized", &linearized)) // /Linearized value is a version number, default 1.0 pdf->flags |= PPDOC_LINEARIZED; break; + case PPSTREAM: + ++streams; + if (ppref_is_objstm(ref, obj->stream, type)) + ++object_streams; + break; case PPREF: - redundant_indirection = 1; + ++redundant_indirections; break; default: break; } - // if pdf->crypt crypt->ref = NULL } - /* refs pointngs refs? cut. */ - if (redundant_indirection) + /* cut references pointing to references (rare). doing for all effectively cuts all insane chains */ + for (pref = offmap; redundant_indirections > 0; ) + { + ref = *pref++; + if (ref->object.type == PPREF) + { + --redundant_indirections; + ref->object = ref->object.ref->object; + } + } + + /* load pdf 1.5 object streams _before_ other streams */ + for (pref = offmap; object_streams > 0; ) { - for (offindex = 0, pref = offmap; offindex < objects; ++offindex) + ref = *pref++; + obj = &ref->object; + if (obj->type != PPSTREAM) + continue; + stream = obj->stream; + if (ppref_is_objstm(ref, stream, type)) { - ref = *pref++; - if (ref->object.type == PPREF) - ref->object = ref->object.ref->object; // doing for all effectively cuts all insane chains + --object_streams; + if (crypt != NULL) + { + ppcrypt_start_ref(crypt, ref); + ppstream_info(stream, pdf); + ppcrypt_end_ref(crypt); + } + else + { + ppstream_info(stream, pdf); + } + if (!ppdoc_load_objstm(stream, pdf, ref->xref)) + loggerf("invalid objects stream %s at offset " PPSIZEF, ppref_str(ref->number, ref->version), ref->offset); + } } - /* now handle streams; update stream info (eg. /Length), load pdf 1.5 object streams - we could do earlier but then we would need to struggle with indirects */ - for (offindex = 0, pref = offmap; offindex < objects; ++offindex) + /* now handle other streams */ + for (pref = offmap; streams > 0; ) { ref = *pref++; obj = &ref->object; if (obj->type != PPSTREAM) continue; + --streams; stream = obj->stream; if (crypt != NULL) { @@ -1874,9 +1919,6 @@ static void ppdoc_load_entries (ppdoc *pdf) { ppstream_info(stream, pdf); } - if (ref->xref->trailer.type == PPSTREAM && (type = ppdict_get_name(stream->dict, "Type")) != NULL && ppname_is(type, "ObjStm")) // somewhat dummy.. - if (!ppdoc_load_objstm(stream, pdf, ref->xref)) - loggerf("invalid objects stream %s at offset " PPSIZEF, ppref_str(ref->number, ref->version), ref->offset); } pp_free(offmap); } @@ -1899,7 +1941,7 @@ ppobj * ppdoc_load_entry (ppdoc *pdf, ppref *ref) return &ref->object; // PPNONE } stack = &pdf->stack; - xref = ref->xref; // to resolve indirects properly + xref = ref->xref; if ((obj = ppscan_obj(I, pdf, xref)) == NULL) { loggerf("invalid %s object at offset " PPSIZEF, ppref_str(ref->number, ref->version), ref->offset); @@ -2232,8 +2274,10 @@ scan_array: dict = o->dict; if ((kids = pppage_node(dict, &count, &type)) != NULL) { - if (index <= count) + if (index <= count) { + index = count - index + 1; goto scan_array; + } index -= count; continue; } diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppstream.c b/Build/source/texk/web2c/luatexdir/luapplib/ppstream.c index 0e4be7b8e28..8aa94cb0a09 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppstream.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppstream.c @@ -11,6 +11,10 @@ ppstream * ppstream_create (ppdoc *pdf, ppdict *dict, size_t offset) //if (!ppdict_rget_uint(dict, "Length", &stream->length)) // may be indirect pointing PPNONE at this moment // stream->length = 0; stream->length = 0; + stream->filespec = NULL; + stream->filter.filters = NULL; + stream->filter.params = NULL; + stream->filter.count = 0; stream->input = &pdf->input; stream->I = NULL; stream->cryptkey = NULL; @@ -18,54 +22,6 @@ ppstream * ppstream_create (ppdoc *pdf, ppdict *dict, size_t offset) return stream; } -/* codecs */ - -enum { - PPSTREAM_UNKNOWN = -1, - PPSTREAM_BASE16 = 0, - PPSTREAM_BASE85, - PPSTREAM_RUNLENGTH, - PPSTREAM_FLATE, - PPSTREAM_LZW, - PPSTREAM_CCITT, - PPSTREAM_DCT, - PPSTREAM_JBIG2, - PPSTREAM_JPX, - PPSTREAM_CRYPT -}; - -static int ppstream_codec_type (ppname name) -{ // one of those places where some hash wuld be nice.. - switch (name[0]) - { - case 'A': - if (ppname_is(name, "ASCIIHexDecode")) return PPSTREAM_BASE16; - if (ppname_is(name, "ASCII85Decode")) return PPSTREAM_BASE85; - break; - case 'R': - if (ppname_is(name, "RunLengthDecode")) return PPSTREAM_RUNLENGTH; - break; - case 'F': - if (ppname_is(name, "FlateDecode")) return PPSTREAM_FLATE; - break; - case 'L': - if (ppname_is(name, "LZWDecode")) return PPSTREAM_LZW; - break; - case 'D': - if (ppname_is(name, "DCTDecode")) return PPSTREAM_DCT; - break; - case 'C': - if (ppname_is(name, "CCITTFaxDecode")) return PPSTREAM_CCITT; - if (ppname_is(name, "Crypt")) return PPSTREAM_CRYPT; - break; - case 'J': - if (ppname_is(name, "JPXDecode")) return PPSTREAM_JPX; - if (ppname_is(name, "JBIG2Decode")) return PPSTREAM_JBIG2; - break; - } - return PPSTREAM_UNKNOWN; -} - static iof * ppstream_predictor (ppdict *params, iof *N) { ppint predictor, rowsamples, components, samplebits; @@ -81,14 +37,14 @@ static iof * ppstream_predictor (ppdict *params, iof *N) return iof_filter_predictor_decoder(N, (int)predictor, (int)rowsamples, (int)components, (int)samplebits); } -static iof * ppstream_decoder (ppstream *stream, int codectype, ppdict *params, iof *N) +static iof * ppstream_decoder (ppstream *stream, ppstreamtp filtertype, ppdict *params, iof *N) { int flags; iof *F, *P; ppint earlychange; ppstring cryptkey; - switch (codectype) + switch (filtertype) { case PPSTREAM_BASE16: return iof_filter_base16_decoder(N); @@ -137,18 +93,15 @@ static iof * ppstream_decoder (ppstream *stream, int codectype, ppdict *params, case PPSTREAM_DCT: case PPSTREAM_JBIG2: case PPSTREAM_JPX: - case PPSTREAM_UNKNOWN: break; } return NULL; } -#define ppstream_image(type) (type == PPSTREAM_DCT || type == PPSTREAM_JBIG2 || PPSTREAM_JPX) - #define ppstream_source(stream) iof_filter_stream_coreader((iof_file *)((stream)->input), (size_t)((stream)->offset), (size_t)((stream)->length)) #define ppstream_auxsource(filename) iof_filter_file_reader(filename) -static ppname ppstream_filter_name (ppobj *filterobj, size_t index) +static ppname ppstream_get_filter_name (ppobj *filterobj, size_t index) { if (filterobj->type == PPNAME) return index == 0 ? filterobj->name : NULL; @@ -157,7 +110,7 @@ static ppname ppstream_filter_name (ppobj *filterobj, size_t index) return NULL; } -static ppdict * ppstream_filter_params (ppobj *paramsobj, size_t index) +static ppdict * ppstream_get_filter_params (ppobj *paramsobj, size_t index) { if (paramsobj->type == PPDICT) return index == 0 ? paramsobj->dict : NULL; @@ -176,66 +129,64 @@ static const char * ppstream_aux_filename (ppobj *filespec) return NULL; } +#define ppstream_image_filter(fcode) (fcode == PPSTREAM_DCT || fcode == PPSTREAM_CCITT || fcode == PPSTREAM_JBIG2 || fcode == PPSTREAM_JPX) + iof * ppstream_read (ppstream *stream, int decode, int all) { - ppdict *dict; iof *I, *F; - int codectype, external, owncrypt; - ppobj *filterobj, *paramsobj, *filespecobj; - ppname filter; - ppdict *params; - size_t index; + ppstreamtp *filtertypes, filtertype; + int owncrypt; + ppdict **filterparams, *fparams; + size_t index, filtercount; const char *filename; if (ppstream_iof(stream) != NULL) return NULL; // usage error - dict = stream->dict; - if ((filespecobj = ppdict_rget_obj(dict, "F")) != NULL) + if (stream->filespec != NULL) { - filename = ppstream_aux_filename(filespecobj); + filename = ppstream_aux_filename(stream->filespec); // mockup, basic support I = filename != NULL ? ppstream_auxsource(filename) : NULL; - external = 1; } else { I = ppstream_source(stream); - external = 0; } if (I == NULL) return NULL; + /* If the stream is encrypted, decipher is the first to be applied */ owncrypt = (stream->flags & PPSTREAM_ENCRYPTED_OWN) != 0; if (!owncrypt) { - if (stream->cryptkey != NULL) - { /* implied global crypt */ + if (stream->cryptkey != NULL && stream->filespec == NULL) + { /* implied global crypt; does not apply to external files (pdf psec page 115), except for embedded file streams (not supported so far) */ if ((F = ppstream_decoder(stream, PPSTREAM_CRYPT, NULL, I)) == NULL) goto stream_error; I = F; } /* otherwise no crypt at all or /Identity */ } + if (decode || owncrypt) { - filterobj = ppdict_rget_obj(dict, external ? "FFilter" : "Filter"); - if (filterobj != NULL) + if ((filtercount = stream->filter.count) > 0) { - paramsobj = ppdict_rget_obj(dict, external ? "FDecodeParms" : "DecodeParms"); - for (index = 0, filter = ppstream_filter_name(filterobj, 0); filter != NULL; filter = ppstream_filter_name(filterobj, ++index)) + filtertypes = stream->filter.filters; + filterparams = stream->filter.params; + for (index = 0; index < filtercount; ++index) { - params = paramsobj != NULL ? ppstream_filter_params(paramsobj, index) : NULL; - codectype = ppstream_codec_type(filter); - if ((F = ppstream_decoder(stream, codectype, params, I)) != NULL) + fparams = filterparams != NULL ? filterparams[index] : NULL; + filtertype = filtertypes[index]; + if ((F = ppstream_decoder(stream, filtertype, fparams, I)) != NULL) { I = F; - if (owncrypt && !decode && codectype == PPSTREAM_CRYPT) + if (owncrypt && !decode && filtertype == PPSTREAM_CRYPT) break; // /Crypt filter should always be first, so in practise we return decrypted but compressed continue; } - if (!ppstream_image(codectype)) // something unexpected - goto stream_error; - else // just treat image data (jpeg/jbig) as the target data - break; + if (!ppstream_image_filter(filtertype)) + goto stream_error; // failed to create non-image filter, something unexpected + break; } } } @@ -297,6 +248,234 @@ void ppstream_done (ppstream *stream) } } +/* fetching stream info +PJ20190916: revealed it makes sense to do a lilbit more just after parsing stream entry to simplify stream operations +and extend ppstream api +*/ + +/* stream filters */ + +const char * ppstream_filter_name[] = { + "ASCIIHexDecode", + "ASCII85Decode", + "RunLengthDecode", + "FlateDecode", + "LZWDecode", + "CCITTFaxDecode", + "DCTDecode", + "JBIG2Decode", + "JPXDecode", + "Crypt" +}; + +int ppstream_filter_type (ppname name, ppstreamtp *filtertype) +{ + switch (name[0]) + { + case 'A': + if (ppname_is(name, "ASCIIHexDecode")) { *filtertype = PPSTREAM_BASE16; return 1; } + if (ppname_is(name, "ASCII85Decode")) { *filtertype = PPSTREAM_BASE85; return 1; } + break; + case 'R': + if (ppname_is(name, "RunLengthDecode")) { *filtertype = PPSTREAM_RUNLENGTH; return 1; } + break; + case 'F': + if (ppname_is(name, "FlateDecode")) { *filtertype = PPSTREAM_FLATE; return 1; } + break; + case 'L': + if (ppname_is(name, "LZWDecode")) { *filtertype = PPSTREAM_LZW; return 1; } + break; + case 'D': + if (ppname_is(name, "DCTDecode")) { *filtertype = PPSTREAM_DCT; return 1; } + break; + case 'C': + if (ppname_is(name, "CCITTFaxDecode")) { *filtertype = PPSTREAM_CCITT; return 1; } + if (ppname_is(name, "Crypt")) { *filtertype = PPSTREAM_CRYPT; return 1; } + break; + case 'J': + if (ppname_is(name, "JPXDecode")) { *filtertype = PPSTREAM_JPX; return 1; } + if (ppname_is(name, "JBIG2Decode")) { *filtertype = PPSTREAM_JBIG2; return 1; } + break; + } + return 0; +} + +void ppstream_info (ppstream *stream, ppdoc *pdf) +{ // called in ppdoc_load_entries() for every stream, but after loading non-stream objects (eg. /Length..) + ppdict *dict, *fparams; + ppobj *fobj, *pobj; + ppname fname, tname, owncryptfilter = NULL; + ppcrypt *crypt; + ppref *ref; + size_t i; + int cflags; + + ppstreamtp *filtertypes = NULL, filtertype; + ppdict **filterparams = NULL; + size_t filtercount = 0, farraysize = 0; + + const char *filterkey, *paramskey; + + dict = stream->dict; + ppdict_rget_uint(dict, "Length", &stream->length); + + if ((stream->filespec = ppdict_get_obj(dict, "F")) != NULL) + { + stream->flags |= PPSTREAM_NOT_SUPPORTED; + filterkey = "FFilter", paramskey = "FDecodeParms"; + } + else + filterkey = "Filter", paramskey = "DecodeParms"; + + if ((fobj = ppdict_rget_obj(dict, filterkey)) != NULL) + { + switch (fobj->type) + { + case PPNAME: + farraysize = 1; + break; + case PPARRAY: + farraysize = fobj->array->size; + break; + default: + break; + } + if (farraysize > 0) + { + filtertypes = ppheap_take(&pdf->heap, farraysize * sizeof(ppstreamtp)); + if ((pobj = ppdict_rget_obj(dict, paramskey)) != NULL) + filterparams = ppheap_take(&pdf->heap, farraysize * sizeof(ppdict *)); + for (i = 0; i < farraysize; ++i) + { + if ((fname = ppstream_get_filter_name(fobj, i)) != NULL && ppstream_filter_type(fname, &filtertype)) + { + filtertypes[filtercount] = filtertype; + if (pobj != NULL) + { + fparams = ppstream_get_filter_params(pobj, i); + filterparams[filtercount] = fparams; + } + else + fparams = NULL; + switch (filtertype) + { + case PPSTREAM_BASE16: + case PPSTREAM_BASE85: + case PPSTREAM_RUNLENGTH: + case PPSTREAM_FLATE: + case PPSTREAM_LZW: + stream->flags |= PPSTREAM_FILTER; + break; + case PPSTREAM_CCITT: + case PPSTREAM_DCT: + case PPSTREAM_JBIG2: + case PPSTREAM_JPX: + stream->flags |= PPSTREAM_IMAGE; + break; + case PPSTREAM_CRYPT: + stream->flags |= PPSTREAM_ENCRYPTED_OWN; + owncryptfilter = fparams != NULL ? ppdict_get_name(fparams, "Name") : NULL; // /Type /CryptFilterDecodeParms /Name ... + if (i != 0) // we assume it is first + stream->flags |= PPSTREAM_NOT_SUPPORTED; + break; + } + ++filtercount; + } + else + { + stream->flags |= PPSTREAM_NOT_SUPPORTED; + } + } + } + } + stream->filter.filters = filtertypes; + stream->filter.params = filterparams; + stream->filter.count = filtercount; + + if ((crypt = pdf->crypt) == NULL || (ref = crypt->ref) == NULL) + return; + if (stream->flags & PPSTREAM_ENCRYPTED_OWN) + { + /* Seems a common habit to use just /Crypt filter name with no params, which defaults to /Identity. + A real example with uncompressed metadata: <</Filter[/Crypt]/Length 4217/Subtype/XML/Type/Metadata>> */ + if (owncryptfilter != NULL && !ppname_is(owncryptfilter, "Identity") && stream->filespec == NULL) // ? + { + if (crypt->map != NULL && ppcrypt_type(crypt, owncryptfilter, NULL, &cflags)) + { + if (cflags & PPCRYPT_INFO_AES) + stream->flags |= PPSTREAM_ENCRYPTED_AES; + else if (cflags & PPCRYPT_INFO_RC4) + stream->flags |= PPSTREAM_ENCRYPTED_RC4; + } + } + } + else + { + if ((crypt->flags & PPCRYPT_NO_METADATA) && (tname = ppdict_get_name(dict, "Type")) != NULL && ppname_is(tname, "Metadata")) + ; /* special treatment of metadata stream; we assume that explicit /Filter /Crypt setup overrides document level setup of EncryptMetadata. */ + else if (stream->filespec == NULL) /* external files are not encrypted, expect embedded files (not supported yet) */ + { + if (crypt->flags & PPCRYPT_STREAM_RC4) + stream->flags |= PPSTREAM_ENCRYPTED_RC4; + else if (crypt->flags & PPCRYPT_STREAM_AES) + stream->flags |= PPSTREAM_ENCRYPTED_AES; + } + } + + /* finally, if the stream is encrypted with non-identity crypt (implicit or explicit), make and save the crypt key */ + if (stream->flags & PPSTREAM_ENCRYPTED) + stream->cryptkey = ppcrypt_stmkey(crypt, ref, ((stream->flags & PPSTREAM_ENCRYPTED_AES) != 0), &pdf->heap); +} + +void ppstream_filter_info (ppstream *stream, ppstream_filter *info, int decode) +{ + size_t from, index; + ppstreamtp filtertype; + ppdict *params; + + *info = stream->filter; + if (info->count > 0) + { + from = (stream->flags & PPSTREAM_ENCRYPTED_OWN) && info->filters[0] == PPSTREAM_CRYPT ? 1 : 0; + if (decode) + { + for (index = from; index < info->count; ++index) + { + filtertype = info->filters[index]; + if (ppstream_image_filter(filtertype)) + { + break; + } + } + } + else + { + index = from; + } + if (index > 0) { + info->count -= index; + if (info->count > 0) + { + info->filters += index; + if (info->params != NULL) + { + info->params += index; + for (index = 0, params = NULL; index < info->count; ++index) + if ((params = info->params[index]) != NULL) + break; + if (params == NULL) + info->params = NULL; + } + } + else + { + info->filters = NULL; + info->params = NULL; + } + } + } +} + /* */ void ppstream_init_buffers (void) diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppstream.h b/Build/source/texk/web2c/luatexdir/luapplib/ppstream.h index ae5c19cd9f2..37e34c56ade 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppstream.h +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppstream.h @@ -5,5 +5,6 @@ ppstream * ppstream_create (ppdoc *pdf, ppdict *dict, size_t offset); iof * ppstream_read (ppstream *stream, int decode, int all); #define ppstream_iof(stream) ((iof *)((stream)->I)) +void ppstream_info (ppstream *stream, ppdoc *pdf); #endif
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/pptest3.c b/Build/source/texk/web2c/luatexdir/luapplib/pptest3.c new file mode 100644 index 00000000000..0b96b229ad0 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/pptest3.c @@ -0,0 +1,98 @@ + +#include <stdio.h> +//#include "ppapi.h" +#include "pplib.h" +#include "assert.h" + +static int usage (const char *argv0) +{ + printf("pplib " pplib_version ", " pplib_author "\n"); + printf("usage: %s file1.pdf file2.pdf ...\n", argv0); + return 0; +} + +static void print_result_filter (ppstream *stream, int decode) +{ + ppstream_filter info; + size_t i; + + ppstream_filter_info(stream, &info, decode); + printf("when %s: /Filter [", decode ? "uncompressed" : "compressed"); + for (i = 0; i < info.count; ++i) + printf(" /%s", ppstream_filter_name[info.filters[i]]); + printf(" ]"); + if (info.params != NULL) + { + printf(" /DecodeParms ["); + for (i = 0; i < info.count; ++i) + printf(" %s", info.params[i] != NULL ? "<<...>>" : "null"); + printf(" ]"); + } + printf("\n"); +} + +static void print_stream_info (ppref *ref, ppstream *stream) +{ + size_t length; + printf("object %lu %lu R\n", (unsigned long)ref->number, (unsigned long)ref->version); + if (stream->flags & PPSTREAM_FILTER) + printf("filtered "); + else + printf("plain "); + if (stream->flags & PPSTREAM_IMAGE) + printf("image "); + else + printf("stream "); + if (stream->flags & PPSTREAM_ENCRYPTED) + printf("encrypted "); + if (stream->flags & PPSTREAM_NOT_SUPPORTED) + printf("invalid "); + if (!ppdict_rget_uint(stream->dict, "Length", &length)) + length = 0; + assert(stream->length == length); + printf("length %lu (/Length %lu)\n", (unsigned long)stream->length, (unsigned long)length); + print_result_filter(stream, 0); + print_result_filter(stream, 1); + printf("\n"); +} + +int main (int argc, const char **argv) +{ + const char *filepath; + int a; + ppdoc *pdf; + ppxref *xref; + ppxsec *xsec; + size_t xi; + ppuint refnum; + ppref *ref; + + if (argc < 2) + return usage(argv[0]); + for (a = 1; a < argc; ++a) + { + filepath = argv[a]; + printf("loading %s... ", filepath); + pdf = ppdoc_load(filepath); + if (pdf == NULL) + { + printf("failed\n"); + continue; + } + printf("done.\n"); + for (xref = ppdoc_xref(pdf); xref != NULL; xref = ppxref_prev(xref)) + { + for (xi = 0, xsec = xref->sects; xi < xref->size; ++xi, ++xsec) + { + for (refnum = xsec->first, ref = xsec->refs; refnum <= xsec->last; ++refnum, ++ref) + { + if (ref->object.type != PPSTREAM) + continue; + print_stream_info(ref, ref->object.stream); + } + } + } + ppdoc_free(pdf); + } + return 0; +} diff --git a/Build/source/texk/web2c/luatexdir/luapplib/ppxref.c b/Build/source/texk/web2c/luatexdir/luapplib/ppxref.c index 984f6cbe327..648d7f1d32a 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/ppxref.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/ppxref.c @@ -87,6 +87,25 @@ ppref * ppxref_find_local (ppxref *xref, ppuint refnumber) return NULL; } +/* +PJ 20180910 + +So far we were resolving references in the context of the current xref: + +- if a given object is found in this xref, than this is the object +- otherwise older xrefs are queried in order +- only in linearized documents older body may refer to object from newer xref + +Hans sent a document where an incremental update (newer body) has only an updated page object +(plus /Metadata and /Info), but /Root (catalog) and /Pages dict refs are defined only in the older body. +If we resolve references using the approach so far, we actually drop the update; newer objects are parsed +and linked to the newest xref, but never linked to objects tree. Assuming we will never need to interpret +older versions, makes sense to assume, that the newest object version is always the correct version. + +*/ + +#if 0 + ppref * ppxref_find (ppxref *xref, ppuint refnumber) { ppref *ref; @@ -115,6 +134,21 @@ ppref * ppxref_find (ppxref *xref, ppuint refnumber) return NULL; } +#else + +ppref * ppxref_find (ppxref *xref, ppuint refnumber) +{ + ppref *ref; + ppxref *other; + + for (other = xref->pdf->xref; other != NULL; other = other->prev) + if ((ref = ppxref_find_local(other, refnumber)) != NULL) + return ref; + return NULL; +} + +#endif + ppdict * ppxref_trailer (ppxref *xref) { switch (xref->trailer.type) diff --git a/Build/source/texk/web2c/luatexdir/luapplib/util/utilarm.h b/Build/source/texk/web2c/luatexdir/luapplib/util/utilarm.h new file mode 100644 index 00000000000..546c6d4dd1a --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/luapplib/util/utilarm.h @@ -0,0 +1,10 @@ +#ifndef UTIL_ARM_H
+#define UTIL_ARM_H
+
+#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ ||( defined(__sun) && defined(__SVR4))
+# define ARM_COMPLIANT 1
+#else
+# define ARM_COMPLIANT 0
+#endif
+
+#endif
\ No newline at end of file diff --git a/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c b/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c index ce9c129e249..4416161eab3 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/util/utilfpred.c @@ -6,7 +6,7 @@ /* Here we implement predictor filters used with flate and lzw compressions in PDF streams. The main idea of data prediction -is to compute and output the differences between data records instead of this records. Adjacent pixels in images are usually +is to compute and output the differences between data records instead of those records. Adjacent pixels in images are usually similar, so differences between pixel values tends to be zero. And both Flate and LZW performs better when the input is rather smooth. Although a preliminary use of predictors is related to bitmap data, The actual need for predictor filter came from the fact that xref streams may also be predicted (usually with PNG up-predictor). @@ -24,7 +24,7 @@ PDF specification allows to use several predictor algorithms, specified by /Pred All PNG predictors works on bytes, regardless the image color-depth. While encoding, every input data byte is decreased by the appropriate byte of the previous pixel. Even if the pixel does not fit a full byte, PNG predictors use an artificial pixel size rounded up to a full byte. PNG predictors utilizes previous (left) pixel, pixel above and previous to above -pixel. In case of PNG, the type of the predictor is written on a dedicated byte on the beginning of every scanline. It +pixel. In case of PNG, the type of the predictor is written on a dedicated byte at the beginning of every scanline. It means all predictor functions must maintain and information about left, above and left-above pixels. Despite the same differencing idea, TIFF predictors are different. The prediction process bases on pixel components, @@ -38,20 +38,13 @@ input value (or 0 at the beginning of the scanline) and output a difference betw previously decoded value (or zero) and outputs their sum. When encoding, the result is cast to the proper unsigned integer, when decoding, modulo 256 (or appropriate) is used, which makes encoding and decoding looseless. -Some extra bits trickery is involved in TIFF predictor function, when components doesn't fit bytes boundary. In that case, -an input is treated as an bits stream. Every input byte is "buffered" in a larger integer, as its lower bits (from right). +Some extra bits trickery is involved in TIFF predictor function, when components don't fit bytes boundary. In that case, +an input is treated as a bits stream. Every input byte is "buffered" in a larger integer, as its lower bits (from right). Every output value is taken from its higher (left) bits. In a special case of bits-per-component equal 1, we buffer all pixel bits and use XOR to compute bits difference between pixels. I've excerpted that trick from poppler, but I'm not really sure if it works any better, especially when the number of components per pixel is 1. In that case we do a hard bit-by-bit work anyway. -Predictor codecs state keeps a notion of surrounding pixels. PNG predictors uses left, up and upleft -pixel data, while TIFF predictor (2) only needs the previous (left) pixel. Important to note that PNG -predictors always work on bytes, no matter of color-depth (bits per component), while TIFF predictor -works on pixel components, which not necessarily fits into a complete byte. However, for PNG predictor -the size of a pixel still matters, because 'left' and 'upleft' refers to a corresponding pixel byte, -not necessarily previous byte. - In PNG prediction, we record every pixel byte (in decoded form) in state->rowsave. At the end of a scanline we copy state->rowsave to state->rowup, so that in the next scanline we can access up-pixel byte. Left pixel byte is accessed as state->rowsave (the byte recently stored or virtual left edge byte \0). @@ -60,8 +53,10 @@ at the left edge of the row). Both state->rowup and state->rowsave has a safe sp that are permanently \0. */ -#define predictor_component_t unsigned short -#define predictor_pixel1b_t unsigned int +#define predictor_component_t uint16_t +#define predictor_pixel1b_t uint32_t + +#define MAX_COMPONENTS 8 typedef struct predictor_state { int default_predictor; /* default predictor indicator */ @@ -70,7 +65,7 @@ typedef struct predictor_state { int compbits; /* number of bits per component (/DecodeParms << /BitsPerComponent ... >>) */ int components; /* number of components (/DecodeParms << /Colors ... >>) */ uint8_t *buffer; /* temporary private buffer area */ - uint8_t *rowin; /* an input row buffer position */ + uint8_t *rowin; /* an input row buffer position */ int rowsize; /* size of a current scanline in bytes (rounded up) */ int rowend; /* an input buffer end position */ int rowindex; /* an output buffer position */ @@ -81,8 +76,9 @@ typedef struct predictor_state { int pixelsize; /* number of bytes per pixel (rounded up) */ }; struct { /* used by TIFF predictor codecs */ + predictor_component_t compbuffer[MAX_COMPONENTS]; union { - predictor_component_t *prevcomp; /* an array of left pixel components */ + predictor_component_t *prevcomp; /* an array of left pixel components, typically eq ->compbuffer */ predictor_pixel1b_t *prevpixel; /* left pixel value stored on a single integer (for 1bit color-depth) */ }; int compin, compout; /* bit stream buffers */ @@ -98,7 +94,23 @@ typedef struct predictor_state { enum { STATUS_LAST = 0, - STATUS_CONTINUE = 1 // any value different then IOFEOF, IOFERR, ... + STATUS_CONTINUE = 1 // any value different then IOFEOF, IOFERR, ... which are < 0 +}; + +/* +Predictor type identifiers (pdf spec 76). lpdf doesn't hire the codec if predictor is 1. Predictor 15 indicates +that the type of PNG prediction algorithm may change in subsequent lines. We always check algorithm marker anyway. +*/ + +enum predictor_code { + NONE_PREDICTOR = 1, + TIFF_PREDICTOR = 2, + PNG_NONE_PREDICTOR = 10, + PNG_SUB_PREDICTOR = 11, + PNG_UP_PREDICTOR = 12, + PNG_AVERAGE_PREDICTOR = 13, + PNG_PAETH_PREDICTOR = 14, + PNG_OPTIMUM_PREDICTOR = 15 }; predictor_state * predictor_decoder_init (predictor_state *state, int predictor, int rowsamples, int components, int compbits) @@ -116,31 +128,19 @@ predictor_state * predictor_decoder_init (predictor_state *state, int predictor, state->components = components; state->compbits = compbits; - if (predictor == 2) + if (predictor == TIFF_PREDICTOR) { /* tiff predictor */ size_t compbuf, pixbuf; - compbuf = state->components * sizeof(predictor_component_t); + compbuf = components * sizeof(predictor_component_t); pixbuf = 1 * sizeof(predictor_pixel1b_t); state->pixbufsize = (int)(compbuf > pixbuf ? compbuf : pixbuf); - buffersize = rowsize + state->pixbufsize; + buffersize = rowsize * sizeof(uint8_t); buffer = (uint8_t *)util_calloc(buffersize, 1); -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ - { /*memory leak */ - predictor_component_t *c; - if (state->pixbufsize%(sizeof(predictor_component_t))) { - c = malloc(state->pixbufsize - state->pixbufsize%(sizeof(predictor_component_t)) + sizeof(predictor_component_t) ); - } else { - c = malloc(state->pixbufsize); - } - memcpy(c,(state->rowin + rowsize),state->pixbufsize); - if (state->prevcomp){ - free(state->prevcomp); - } - state->prevcomp = c; - } -#else - state->prevcomp = (predictor_component_t *)(state->rowin + rowsize); -#endif + if (state->pixbufsize > sizeof(state->compbuffer)) // components > MAX_COMPONENTS + state->prevcomp = (predictor_component_t *)util_calloc(state->pixbufsize, 1); + else + state->prevcomp = state->compbuffer; + // &state->prevcomp == &state->prevpixel state->sampleindex = state->compindex = 0; state->bitsin = state->bitsout = 0; state->compin = state->compout = 0; @@ -173,30 +173,16 @@ predictor_state * predictor_encoder_init (predictor_state *state, int predictor, void predictor_decoder_close (predictor_state *state) { util_free(state->buffer); + if (state->default_predictor == TIFF_PREDICTOR && state->prevcomp != NULL && state->prevcomp != state->compbuffer) + util_free(state->prevcomp); } void predictor_encoder_close (predictor_state *state) { - util_free(state->buffer); + predictor_decoder_close(state); } /* -Predictor type identifiers (pdf spec 76). lpdf doesn't hire the codec if predictor is 1. Predictor 15 indicates -that the type of PNG prediction algorithm may change in subsequent lines. We always check algorithm marker anyway. -*/ - -enum predictor_code { - NONE_PREDICTOR = 1, - TIFF_PREDICTOR = 2, - PNG_NONE_PREDICTOR = 10, - PNG_SUB_PREDICTOR = 11, - PNG_UP_PREDICTOR = 12, - PNG_AVERAGE_PREDICTOR = 13, - PNG_PAETH_PREDICTOR = 14, - PNG_OPTIMUM_PREDICTOR = 15 -}; - -/* All predoctor codecs first read the entire data row into a buffer. This is not crucial for the process, but allows to separate read/write states. In particular, there is one place in which codec functions may return on EOD. @@ -254,20 +240,22 @@ static int read_scanline (predictor_state *state, iof *I, int size) #define ensure_output_bytes(O, n) if (!iof_ensure(O, n)) return IOFFULL -#define tobyte(c) ((unsigned char)(c)) -#define tocomp(c) ((unsigned short)(c)) +#define tobyte(c) ((uint8_t)(c)) +#define tocomp(c) ((uint16_t)(c)) #define row_byte(state) (state->rowin[state->rowindex]) +/* png predictor macros; on bytes */ + #define up_pixel_byte(state) (state->rowup[state->rowindex]) #define upleft_pixel_byte(state) (state->rowup[state->rowindex - state->pixelsize]) #define left_pixel_byte(state) (state->rowsave[state->rowindex - state->pixelsize]) - #define save_pixel_byte(state, c) (state->rowsave[state->rowindex] = c) +/* tiff predictor macros; on components */ + #define left_pixel_component(state) (state->prevcomp[state->compindex]) // tiff predictor with 2, 4, 8, 16 components #define left_pixel_value(state) (state->prevpixel[0]) // tiff predictor with 1bit components - #define save_pixel_component(state, c) ((void)\ ((state->prevcomp[state->compindex] = c), \ (++state->compindex < state->components || (state->compindex = 0)))) @@ -418,7 +406,7 @@ iof_status predictor_decode_state (iof *I, iof *O, predictor_state *state) d = row_byte(state) << 8; ++state->rowindex; d |= row_byte(state); - c = (d + left_pixel_component(state)) & 0xff; + c = (d + left_pixel_component(state)) & 0xffff; save_pixel_component(state, c); iof_set2(O, c >> 8, c & 0xff); } diff --git a/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c b/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c index 7d07cf12d81..2a1c6c7eeb8 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/util/utiliof.c @@ -8,6 +8,8 @@ #include "utillog.h" #include "utiliof.h" +#include "utilarm.h" + /* commons */ void * iof_copy_data (const void *data, size_t size) @@ -2001,7 +2003,7 @@ void iof_filters_free (void) iof_filters_heap = NULL; } -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT #define iof_heap_get(hp, ghost, data, siz) \ (ghost = (iof_heap_ghost *)((void*)((hp)->pos)), \ ghost->heap = hp, \ diff --git a/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c b/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c index 66532073023..aa640ec24f9 100644 --- a/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c +++ b/Build/source/texk/web2c/luatexdir/luapplib/util/utilsha.c @@ -1,6 +1,8 @@ /* sha2 implementation by Aaron D. Gifford (http://www.aarongifford.com) */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#include "utilarm.h" + +#if ARM_COMPLIANT #include <stdlib.h> #endif @@ -44,9 +46,6 @@ */ #include <string.h> /* memcpy()/memset() or bcopy()/bzero() */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ -#include <stdlib.h> -#endif #include <assert.h> /* assert() */ //#include "sha2.h" #include "utilsha.h" @@ -450,7 +449,7 @@ static void SHA256_Transform(SHA256_CTX* context, const uint32_t* data) { uint32_t T1, T2, *W256; int j; -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT W256 = (uint32_t*)((void *)context->buffer); #else W256 = (uint32_t*)context->buffer; @@ -552,7 +551,7 @@ static void SHA256_Update(SHA256_CTX* context, const uint8_t *data, size_t len) context->bitcount += freespace << 3; len -= freespace; data += freespace; -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT SHA256_Transform(context, (uint32_t*)((void *)context->buffer)); #else SHA256_Transform(context, (uint32_t*)context->buffer); @@ -569,8 +568,8 @@ static void SHA256_Update(SHA256_CTX* context, const uint8_t *data, size_t len) } while (len >= SHA256_BLOCK_LENGTH) { /* Process as many complete blocks as we can */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ - SHA256_Transform(context, (const uint32_t*)(const void *)(data)); +#if ARM_COMPLIANT + SHA256_Transform(context, (const uint32_t*)(const void *)(data)); #else SHA256_Transform(context, (const uint32_t*)data); #endif @@ -589,7 +588,7 @@ static void SHA256_Update(SHA256_CTX* context, const uint8_t *data, size_t len) } static void SHA256_Final(uint8_t digest[], SHA256_CTX* context) { -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT uint32_t *d ; #else uint32_t *d = (uint32_t*)digest; @@ -599,7 +598,7 @@ static void SHA256_Final(uint8_t digest[], SHA256_CTX* context) { /* Sanity check: */ assert(context != (SHA256_CTX*)0); -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT d = malloc(sizeof(uint32_t)*8); /* why 8 ? see below for loop */ assert(d); #endif @@ -623,7 +622,7 @@ static void SHA256_Final(uint8_t digest[], SHA256_CTX* context) { MEMSET_BZERO(&context->buffer[usedspace], SHA256_BLOCK_LENGTH - usedspace); } /* Do second-to-last transform: */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT SHA256_Transform(context, (uint32_t*)(void *)(context->buffer)); #else SHA256_Transform(context, (uint32_t*)context->buffer); @@ -645,9 +644,8 @@ static void SHA256_Final(uint8_t digest[], SHA256_CTX* context) { context->buffer64[SHA256_SHORT_BLOCK_LENGTH / sizeof(uint64_t)] = context->bitcount; /* Final transform: */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ - SHA256_Transform(context, (uint32_t*)((void *)(context->buffer))); - +#if ARM_COMPLIANT + SHA256_Transform(context, (uint32_t*)((void *)(context->buffer))); #else SHA256_Transform(context, (uint32_t*)context->buffer); @@ -667,7 +665,7 @@ static void SHA256_Final(uint8_t digest[], SHA256_CTX* context) { #endif } -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT memcpy(digest,d,SHA256_DIGEST_LENGTH); free(d); #endif @@ -912,7 +910,7 @@ static void SHA512_Update(SHA512_CTX* context, const uint8_t *data, size_t len) ADDINC128(context->bitcount, freespace << 3); len -= freespace; data += freespace; -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT SHA512_Transform(context, (uint64_t*)((void *)context->buffer)); #else SHA512_Transform(context, (uint64_t*)context->buffer); @@ -928,10 +926,10 @@ static void SHA512_Update(SHA512_CTX* context, const uint8_t *data, size_t len) } while (len >= SHA512_BLOCK_LENGTH) { /* Process as many complete blocks as we can */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ - SHA512_Transform(context, (uint64_t*)((void *)context->buffer)); +#if ARM_COMPLIANT + SHA512_Transform(context, (uint64_t*)((void *)context->buffer)); #else - SHA512_Transform(context, (uint64_t*)context->buffer); + SHA512_Transform(context, (uint64_t*)context->buffer); #endif ADDINC128(context->bitcount, SHA512_BLOCK_LENGTH << 3); len -= SHA512_BLOCK_LENGTH; @@ -967,7 +965,7 @@ static void SHA512_Last(SHA512_CTX* context) { MEMSET_BZERO(&context->buffer[usedspace], SHA512_BLOCK_LENGTH - usedspace); } /* Do second-to-last transform: */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT SHA512_Transform(context, (uint64_t*)((void *)context->buffer)); #else SHA512_Transform(context, (uint64_t*)context->buffer); @@ -991,7 +989,7 @@ static void SHA512_Last(SHA512_CTX* context) { context->buffer64[SHA512_SHORT_BLOCK_LENGTH / sizeof(uint64_t) + 1] = context->bitcount[0]; /* Final transform: */ -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT SHA512_Transform(context, (uint64_t*)((void *)context->buffer)); #else SHA512_Transform(context, (uint64_t*)context->buffer); @@ -1000,16 +998,15 @@ static void SHA512_Last(SHA512_CTX* context) { } static void SHA512_Final(uint8_t digest[], SHA512_CTX* context) { -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT uint64_t *d ; #else uint64_t *d = (uint64_t*)digest; - #endif /* Sanity check: */ assert(context != (SHA512_CTX*)0); -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT d = malloc(sizeof(uint64_t)*8); /* why 8 ? see below for loop */ assert(d); #endif @@ -1032,7 +1029,7 @@ static void SHA512_Final(uint8_t digest[], SHA512_CTX* context) { MEMCPY_BCOPY(d, context->state, SHA512_DIGEST_LENGTH); #endif } -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT memcpy(digest,d,SHA512_DIGEST_LENGTH); free(d); #endif @@ -1089,7 +1086,7 @@ static void SHA384_Update(SHA384_CTX* context, const uint8_t* data, size_t len) } static void SHA384_Final(uint8_t digest[], SHA384_CTX* context) { -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT uint64_t *d; #else uint64_t *d = (uint64_t*)digest; @@ -1099,7 +1096,7 @@ static void SHA384_Final(uint8_t digest[], SHA384_CTX* context) { /* Sanity check: */ assert(context != (SHA384_CTX*)0); -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT d = malloc(sizeof(uint64_t)*6); /* why 6 ? see below for loop */ assert(d); #endif @@ -1122,7 +1119,7 @@ static void SHA384_Final(uint8_t digest[], SHA384_CTX* context) { MEMCPY_BCOPY(d, context->state, SHA384_DIGEST_LENGTH); #endif } -#if defined __arm__ || defined __ARM__ || defined ARM || defined __ARM || defined __arm || defined __ARM_ARCH ||defined __aarch64__ +#if ARM_COMPLIANT memcpy(digest,d,SHA384_DIGEST_LENGTH); free(d); #endif diff --git a/Build/source/texk/web2c/luatexdir/luapplib/zlib/zconf.h b/Build/source/texk/web2c/luatexdir/luapplib/zlib/zconf.h deleted file mode 100644 index 02ce56c4313..00000000000 --- a/Build/source/texk/web2c/luatexdir/luapplib/zlib/zconf.h +++ /dev/null @@ -1,428 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - * Even better than compiling with -DZ_PREFIX would be to use configure to set - * this permanently in zconf.h using "./configure --zprefix". - */ -#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ - -/* all linked symbols */ -# define _dist_code z__dist_code -# define _length_code z__length_code -# define _tr_align z__tr_align -# define _tr_flush_block z__tr_flush_block -# define _tr_init z__tr_init -# define _tr_stored_block z__tr_stored_block -# define _tr_tally z__tr_tally -# define adler32 z_adler32 -# define adler32_combine z_adler32_combine -# define adler32_combine64 z_adler32_combine64 -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define crc32 z_crc32 -# define crc32_combine z_crc32_combine -# define crc32_combine64 z_crc32_combine64 -# define deflate z_deflate -# define deflateBound z_deflateBound -# define deflateCopy z_deflateCopy -# define deflateEnd z_deflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateInit_ z_deflateInit_ -# define deflateParams z_deflateParams -# define deflatePrime z_deflatePrime -# define deflateReset z_deflateReset -# define deflateSetDictionary z_deflateSetDictionary -# define deflateSetHeader z_deflateSetHeader -# define deflateTune z_deflateTune -# define deflate_copyright z_deflate_copyright -# define get_crc_table z_get_crc_table -# define gz_error z_gz_error -# define gz_intmax z_gz_intmax -# define gz_strwinerror z_gz_strwinerror -# define gzbuffer z_gzbuffer -# define gzclearerr z_gzclearerr -# define gzclose z_gzclose -# define gzclose_r z_gzclose_r -# define gzclose_w z_gzclose_w -# define gzdirect z_gzdirect -# define gzdopen z_gzdopen -# define gzeof z_gzeof -# define gzerror z_gzerror -# define gzflush z_gzflush -# define gzgetc z_gzgetc -# define gzgets z_gzgets -# define gzoffset z_gzoffset -# define gzoffset64 z_gzoffset64 -# define gzopen z_gzopen -# define gzopen64 z_gzopen64 -# define gzprintf z_gzprintf -# define gzputc z_gzputc -# define gzputs z_gzputs -# define gzread z_gzread -# define gzrewind z_gzrewind -# define gzseek z_gzseek -# define gzseek64 z_gzseek64 -# define gzsetparams z_gzsetparams -# define gztell z_gztell -# define gztell64 z_gztell64 -# define gzungetc z_gzungetc -# define gzwrite z_gzwrite -# define inflate z_inflate -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define inflateBackInit_ z_inflateBackInit_ -# define inflateCopy z_inflateCopy -# define inflateEnd z_inflateEnd -# define inflateGetHeader z_inflateGetHeader -# define inflateInit2_ z_inflateInit2_ -# define inflateInit_ z_inflateInit_ -# define inflateMark z_inflateMark -# define inflatePrime z_inflatePrime -# define inflateReset z_inflateReset -# define inflateReset2 z_inflateReset2 -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateUndermine z_inflateUndermine -# define inflate_copyright z_inflate_copyright -# define inflate_fast z_inflate_fast -# define inflate_table z_inflate_table -# define uncompress z_uncompress -# define zError z_zError -# define zcalloc z_zcalloc -# define zcfree z_zcfree -# define zlibCompileFlags z_zlibCompileFlags -# define zlibVersion z_zlibVersion - -/* all zlib typedefs in zlib.h and zconf.h */ -# define Byte z_Byte -# define Bytef z_Bytef -# define alloc_func z_alloc_func -# define charf z_charf -# define free_func z_free_func -# define gzFile z_gzFile -# define gz_header z_gz_header -# define gz_headerp z_gz_headerp -# define in_func z_in_func -# define intf z_intf -# define out_func z_out_func -# define uInt z_uInt -# define uIntf z_uIntf -# define uLong z_uLong -# define uLongf z_uLongf -# define voidp z_voidp -# define voidpc z_voidpc -# define voidpf z_voidpf - -/* all zlib structs in zlib.h and zconf.h */ -# define gz_header_s z_gz_header_s -# define internal_state z_internal_state - -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include <windows.h> - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ -# define Z_HAVE_UNISTD_H -#endif - -#ifdef STDC -# include <sys/types.h> /* for off_t */ -#endif - -/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and - * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even - * though the former does not conform to the LFS document), but considering - * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as - * equivalently requesting no 64-bit operations - */ -#if -_LARGEFILE64_SOURCE - -1 == 1 -# undef _LARGEFILE64_SOURCE -#endif - -#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) -# include <unistd.h> /* for SEEK_* and off_t */ -# ifdef VMS -# include <unixio.h> /* for off_t */ -# endif -# ifndef z_off_t -# define z_off_t off_t -# endif -#endif - -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif - -#ifndef z_off_t -# define z_off_t long -#endif - -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 -# define z_off64_t off64_t -#else -# define z_off64_t z_off_t -#endif - -#if defined(__OS400__) -# define NO_vsnprintf -#endif - -#if defined(__MVS__) -# define NO_vsnprintf -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) - #pragma map(deflateInit_,"DEIN") - #pragma map(deflateInit2_,"DEIN2") - #pragma map(deflateEnd,"DEEND") - #pragma map(deflateBound,"DEBND") - #pragma map(inflateInit_,"ININ") - #pragma map(inflateInit2_,"ININ2") - #pragma map(inflateEnd,"INEND") - #pragma map(inflateSync,"INSY") - #pragma map(inflateSetDictionary,"INSEDI") - #pragma map(compressBound,"CMBND") - #pragma map(inflate_table,"INTABL") - #pragma map(inflate_fast,"INFA") - #pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ diff --git a/Build/source/texk/web2c/luatexdir/luapplib/zlib/zlib.h b/Build/source/texk/web2c/luatexdir/luapplib/zlib/zlib.h deleted file mode 100644 index bfbba83e8ee..00000000000 --- a/Build/source/texk/web2c/luatexdir/luapplib/zlib/zlib.h +++ /dev/null @@ -1,1613 +0,0 @@ -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.2.5, April 19th, 2010 - - Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -#ifndef ZLIB_H -#define ZLIB_H - -#include "zconf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZLIB_VERSION "1.2.5" -#define ZLIB_VERNUM 0x1250 -#define ZLIB_VER_MAJOR 1 -#define ZLIB_VER_MINOR 2 -#define ZLIB_VER_REVISION 5 -#define ZLIB_VER_SUBREVISION 0 - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed data. - This version of the library supports only one compression method (deflation) - but other algorithms will be added later and will have the same stream - interface. - - Compression can be done in a single step if the buffers are large enough, - or can be done by repeated calls of the compression function. In the latter - case, the application must provide more input and/or consume the output - (providing more output space) before each call. - - The compressed data format used by default by the in-memory functions is - the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped - around a deflate stream, which is itself documented in RFC 1951. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio using the functions that start - with "gz". The gzip format is different from the zlib format. gzip is a - gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. - - This library can optionally read and write gzip streams in memory as well. - - The zlib format was designed to be compact and fast for use in memory - and on communications channels. The gzip format was designed for single- - file compression on file systems, has a larger header than zlib to maintain - directory information, and uses a different, slower check method than zlib. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never crash - even in case of corrupted input. -*/ - -typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); -typedef void (*free_func) OF((voidpf opaque, voidpf address)); - -struct internal_state; - -typedef struct z_stream_s { - Bytef *next_in; /* next input byte */ - uInt avail_in; /* number of bytes available at next_in */ - uLong total_in; /* total nb of input bytes read so far */ - - Bytef *next_out; /* next output byte should be put there */ - uInt avail_out; /* remaining free space at next_out */ - uLong total_out; /* total nb of bytes output so far */ - - char *msg; /* last error message, NULL if no error */ - struct internal_state FAR *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - voidpf opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: binary or text */ - uLong adler; /* adler32 value of the uncompressed data */ - uLong reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream FAR *z_streamp; - -/* - gzip header information passed to and from zlib routines. See RFC 1952 - for more details on the meanings of these fields. -*/ -typedef struct gz_header_s { - int text; /* true if compressed data believed to be text */ - uLong time; /* modification time */ - int xflags; /* extra flags (not used when writing a gzip file) */ - int os; /* operating system */ - Bytef *extra; /* pointer to extra field or Z_NULL if none */ - uInt extra_len; /* extra field length (valid if extra != Z_NULL) */ - uInt extra_max; /* space at extra (only when reading header) */ - Bytef *name; /* pointer to zero-terminated file name or Z_NULL */ - uInt name_max; /* space at name (only when reading header) */ - Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */ - uInt comm_max; /* space at comment (only when reading header) */ - int hcrc; /* true if there was or will be a header crc */ - int done; /* true when done reading gzip header (not used - when writing a gzip file) */ -} gz_header; - -typedef gz_header FAR *gz_headerp; - -/* - The application must update next_in and avail_in when avail_in has dropped - to zero. It must update next_out and avail_out when avail_out has dropped - to zero. The application must initialize zalloc, zfree and opaque before - calling the init function. All other fields are set by the compression - library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this if - the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers - returned by zalloc for objects of exactly 65536 bytes *must* have their - offset normalized to zero. The default allocation function provided by this - library ensures this (see zutil.c). To reduce memory requirements and avoid - any allocation of 64K objects, at the expense of compression ratio, compile - the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or progress - reports. After compression, total_in holds the total size of the - uncompressed data and may be saved for use in the decompressor (particularly - if the decompressor wants to decompress everything in a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -#define Z_BLOCK 5 -#define Z_TREES 6 -/* Allowed flush values; see deflate() and inflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative values - * are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_RLE 3 -#define Z_FIXED 4 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_TEXT 1 -#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */ -#define Z_UNKNOWN 2 -/* Possible values of the data_type field (though see inflate()) */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - - /* basic functions */ - -ZEXTERN const char * ZEXPORT zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is not - compatible with the zlib.h header file used by the application. This check - is automatically made by deflateInit and inflateInit. - */ - -/* -ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. If - zalloc and zfree are set to Z_NULL, deflateInit updates them to use default - allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at all - (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION - requests a default compromise between speed and compression (currently - equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if level is not a valid compression level, or - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). msg is set to null - if there is no error message. deflateInit does not perform any compression: - this will be done by deflate(). -*/ - - -ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). Some - output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming more - output, and updating avail_in or avail_out accordingly; avail_out should - never be zero before the call. The application can consume the compressed - output when it wants, for example when the output buffer is full (avail_out - == 0), or after each call of deflate(). If deflate returns Z_OK and with - zero avail_out, it must be called again after making room in the output - buffer because there might be more output pending. - - Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to - decide how much data to accumulate before producing output, in order to - maximize compression. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In - particular avail_in is zero after the call if enough output space has been - provided before the call.) Flushing may degrade compression for some - compression algorithms and so it should be used only when necessary. This - completes the current deflate block and follows it with an empty stored block - that is three bits plus filler bits to the next byte, followed by four bytes - (00 00 ff ff). - - If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the - output buffer, but the output is not aligned to a byte boundary. All of the - input data so far will be available to the decompressor, as for Z_SYNC_FLUSH. - This completes the current deflate block and follows it with an empty fixed - codes block that is 10 bits long. This assures that enough bytes are output - in order for the decompressor to finish the block before the empty fixed code - block. - - If flush is set to Z_BLOCK, a deflate block is completed and emitted, as - for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to - seven bits of the current block are held to be written as the next byte after - the next deflate block is completed. In this case, the decompressor may not - be provided enough bits at this point in order to complete decompression of - the data provided so far to the compressor. It may need to wait for the next - block to be emitted. This is for advanced applications that need to control - the emission of deflate blocks. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that - avail_out is greater than six to avoid repeated flush markers due to - avail_out == 0 on return. - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there was - enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the stream - are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least the - value returned by deflateBound (see below). If deflate does not return - Z_STREAM_END, then it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so far (that is, total_in bytes). - - deflate() may update strm->data_type if it can make a good guess about - the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered - binary. This field is only for information purposes and does not affect the - compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not - fatal, and deflate() can be called again with more input and more output - space to continue compressing. -*/ - - -ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any pending - output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, msg - may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the - exact value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller, or Z_STREAM_ERROR if the parameters are - invalid, such as a null pointer to the structure. msg is set to null if - there is no error message. inflateInit does not perform any decompression - apart from possibly reading the zlib header if present: actual decompression - will be done by inflate(). (So next_in and avail_in may be modified, but - next_out and avail_out are unused and unchanged.) The current implementation - of inflateInit() does not process any header information -- that is deferred - until inflate() is called. -*/ - - -ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing will - resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there is - no more input data or no more space in the output buffer (see below about - the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming more - output, and updating the next_* and avail_* values accordingly. The - application can consume the uncompressed output when it wants, for example - when the output buffer is full (avail_out == 0), or after each call of - inflate(). If inflate returns Z_OK and with zero avail_out, it must be - called again after making room in the output buffer because there might be - more output pending. - - The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH, - Z_BLOCK, or Z_TREES. Z_SYNC_FLUSH requests that inflate() flush as much - output as possible to the output buffer. Z_BLOCK requests that inflate() - stop if and when it gets to the next deflate block boundary. When decoding - the zlib or gzip format, this will cause inflate() to return immediately - after the header and before the first block. When doing a raw inflate, - inflate() will go ahead and process the first block, and will return when it - gets to the end of that block, or when it runs out of data. - - The Z_BLOCK option assists in appending to or combining deflate streams. - Also to assist in this, on return inflate() will set strm->data_type to the - number of unused bits in the last byte taken from strm->next_in, plus 64 if - inflate() is currently decoding the last block in the deflate stream, plus - 128 if inflate() returned immediately after decoding an end-of-block code or - decoding the complete header up to just before the first byte of the deflate - stream. The end-of-block will not be indicated until all of the uncompressed - data from that block has been written to strm->next_out. The number of - unused bits may in general be greater than seven, except when bit 7 of - data_type is set, in which case the number of unused bits will be less than - eight. data_type is set as noted here every time inflate() returns for all - flush options, and so can be used to determine the amount of currently - consumed input in bits. - - The Z_TREES option behaves as Z_BLOCK does, but it also returns when the - end of each deflate block header is reached, before any actual data in that - block is decoded. This allows the caller to determine the length of the - deflate block header for later use in random access within a deflate block. - 256 is added to the value of strm->data_type when inflate() returns - immediately after reaching the end of the deflate block header. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step (a - single call of inflate), the parameter flush should be set to Z_FINISH. In - this case all pending input is processed and all pending output is flushed; - avail_out must be large enough to hold all the uncompressed data. (The size - of the uncompressed data may have been saved by the compressor for this - purpose.) The next operation on this stream must be inflateEnd to deallocate - the decompression state. The use of Z_FINISH is never required, but can be - used to inform inflate that a faster approach may be used for the single - inflate() call. - - In this implementation, inflate() always flushes as much output as - possible to the output buffer, and always uses the faster approach on the - first call. So the only effect of the flush parameter in this implementation - is on the return value of inflate(), as noted below, or when it returns early - because Z_BLOCK or Z_TREES is used. - - If a preset dictionary is needed after this call (see inflateSetDictionary - below), inflate sets strm->adler to the adler32 checksum of the dictionary - chosen by the compressor and returns Z_NEED_DICT; otherwise it sets - strm->adler to the adler32 checksum of all output produced so far (that is, - total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described - below. At the end of the stream, inflate() checks that its computed adler32 - checksum is equal to that saved by the compressor and returns Z_STREAM_END - only if the checksum is correct. - - inflate() can decompress and check either zlib-wrapped or gzip-wrapped - deflate data. The header type is detected automatically, if requested when - initializing with inflateInit2(). Any information contained in the gzip - header is not retained, so applications that need that information should - instead use raw inflate, see inflateInit2() below, or inflateBack() and - perform their own processing of the gzip header and trailer. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect check - value), Z_STREAM_ERROR if the stream structure was inconsistent (for example - next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory, - Z_BUF_ERROR if no progress is possible or if there was not enough room in the - output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and - inflate() can be called again with more input and more output space to - continue decompressing. If Z_DATA_ERROR is returned, the application may - then call inflateSync() to look for a good compression block if a partial - recovery of the data is desired. -*/ - - -ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any pending - output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by the - caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - windowBits can also be -8..-15 for raw deflate. In this case, -windowBits - determines the window size. deflate() will then generate raw deflate data - with no zlib header or trailer, and will not compute an adler32 check value. - - windowBits can also be greater than 15 for optional gzip encoding. Add - 16 to windowBits to write a simple gzip header and trailer around the - compressed data instead of a zlib wrapper. The gzip header will have no - file name, no extra data, no comment, no modification time (set to zero), no - header crc, and the operating system will be set to 255 (unknown). If a - gzip stream is being written, strm->adler is a crc32 instead of an adler32. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but is - slow and reduces compression ratio; memLevel=9 uses maximum memory for - optimal speed. The default value is 8. See zconf.h for total memory usage - as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match), or Z_RLE to limit match distances to one (run-length - encoding). Filtered data consists mostly of small values with a somewhat - random distribution. In this case, the compression algorithm is tuned to - compress them better. The effect of Z_FILTERED is to force more Huffman - coding and less string matching; it is somewhat intermediate between - Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as - fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data. The - strategy parameter only affects the compression ratio but not the - correctness of the compressed output even if it is not set appropriately. - Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler - decoder for special applications. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid - method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is - incompatible with the version assumed by the caller (ZLIB_VERSION). msg is - set to null if there is no error message. deflateInit2 does not perform any - compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any call - of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size - provided in deflateInit or deflateInit2. Thus the strings most likely to be - useful should be put at the end of the dictionary, not at the front. In - addition, the current implementation of deflate will use at most the window - size minus 262 bytes of the provided dictionary. - - Upon return of this function, strm->adler is set to the adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) If a raw deflate was requested, then the - adler32 value is not computed and strm->adler is not set. - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and can - consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being Z_NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. The - stream will keep the same compression level and any other attributes that - may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL). -*/ - -ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different strategy. - If the compression level is changed, the input available so far is - compressed with the old level (and may be flushed); the new level will take - effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to be - compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if - strm->avail_out was zero. -*/ - -ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm, - int good_length, - int max_lazy, - int nice_length, - int max_chain)); -/* - Fine tune deflate's internal compression parameters. This should only be - used by someone who understands the algorithm used by zlib's deflate for - searching for the best matching string, and even then only by the most - fanatic optimizer trying to squeeze out the last compressed bit for their - specific input data. Read the deflate.c source code for the meaning of the - max_lazy, good_length, nice_length, and max_chain parameters. - - deflateTune() can be called after deflateInit() or deflateInit2(), and - returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream. - */ - -ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, - uLong sourceLen)); -/* - deflateBound() returns an upper bound on the compressed size after - deflation of sourceLen bytes. It must be called after deflateInit() or - deflateInit2(), and after deflateSetHeader(), if used. This would be used - to allocate an output buffer for deflation in a single pass, and so would be - called before deflate(). -*/ - -ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - deflatePrime() inserts bits in the deflate output stream. The intent - is that this function is used to start off the deflate output with the bits - leftover from a previous deflate stream when appending to it. As such, this - function can only be used for raw deflate, and must be used before the first - deflate() call after a deflateInit2() or deflateReset(). bits must be less - than or equal to 16, and that many of the least significant bits of value - will be inserted in the output. - - deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm, - gz_headerp head)); -/* - deflateSetHeader() provides gzip header information for when a gzip - stream is requested by deflateInit2(). deflateSetHeader() may be called - after deflateInit2() or deflateReset() and before the first call of - deflate(). The text, time, os, extra field, name, and comment information - in the provided gz_header structure are written to the gzip header (xflag is - ignored -- the extra flags are set according to the compression level). The - caller must assure that, if not Z_NULL, name and comment are terminated with - a zero byte, and that if extra is not Z_NULL, that extra_len bytes are - available there. If hcrc is true, a gzip header crc is included. Note that - the current versions of the command-line version of gzip (up through version - 1.3.x) do not support header crc's, and will report that it is a "multi-part - gzip file" and give up. - - If deflateSetHeader is not used, the default gzip header has text false, - the time set to zero, and os set to 255, with no extra, name, or comment - fields. The gzip header is returned to the default state by deflateReset(). - - deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. windowBits must be greater than or equal to the windowBits value - provided to deflateInit2() while compressing, or it must be equal to 15 if - deflateInit2() was not used. If a compressed stream with a larger window - size is given as input, inflate() will return with the error code - Z_DATA_ERROR instead of trying to allocate a larger window. - - windowBits can also be zero to request that inflate use the window size in - the zlib header of the compressed stream. - - windowBits can also be -8..-15 for raw inflate. In this case, -windowBits - determines the window size. inflate() will then process raw deflate data, - not looking for a zlib or gzip header, not generating a check value, and not - looking for any check values for comparison at the end of the stream. This - is for use with other formats that use the deflate compressed data format - such as zip. Those formats provide their own check values. If a custom - format is developed using the raw deflate format for compressed data, it is - recommended that a check value such as an adler32 or a crc32 be applied to - the uncompressed data as is done in the zlib, gzip, and zip formats. For - most applications, the zlib format should be used as is. Note that comments - above on the use in deflateInit2() applies to the magnitude of windowBits. - - windowBits can also be greater than 15 for optional gzip decoding. Add - 32 to windowBits to enable zlib and gzip decoding with automatic header - detection, or add 16 to decode only the gzip format (the zlib format will - return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a - crc32 instead of an adler32. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller, or Z_STREAM_ERROR if the parameters are - invalid, such as a null pointer to the structure. msg is set to null if - there is no error message. inflateInit2 does not perform any decompression - apart from possibly reading the zlib header if present: actual decompression - will be done by inflate(). (So next_in and avail_in may be modified, but - next_out and avail_out are unused and unchanged.) The current implementation - of inflateInit2() does not process any header information -- that is - deferred until inflate() is called. -*/ - -ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate, - if that call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the adler32 value returned by that call of inflate. - The compressor and decompressor must use exactly the same dictionary (see - deflateSetDictionary). For raw inflate, this function can be called - immediately after inflateInit2() or inflateReset() and before any call of - inflate() to set the dictionary. The application must insure that the - dictionary that was used for compression is provided. - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been - found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the - success case, the application may save the current current value of total_in - which indicates where valid compressed data was found. In the error case, - the application may repeatedly call inflateSync, providing more input each - time, until success or end of the input data. -*/ - -ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when randomly accessing a large stream. The - first pass through the stream can periodically record the inflate state, - allowing restarting inflate at those points when randomly accessing the - stream. - - inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being Z_NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. The - stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL). -*/ - -ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm, - int windowBits)); -/* - This function is the same as inflateReset, but it also permits changing - the wrap and window size requests. The windowBits parameter is interpreted - the same as it is for inflateInit2. - - inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL), or if - the windowBits parameter is invalid. -*/ - -ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - This function inserts bits in the inflate input stream. The intent is - that this function is used to start inflating at a bit position in the - middle of a byte. The provided bits will be used before any bytes are used - from next_in. This function should only be used with raw inflate, and - should be used before the first inflate() call after inflateInit2() or - inflateReset(). bits must be less than or equal to 16, and that many of the - least significant bits of value will be inserted in the input. - - If bits is negative, then the input stream bit buffer is emptied. Then - inflatePrime() can be called again to put bits in the buffer. This is used - to clear out bits leftover after feeding inflate a block description prior - to feeding inflate codes. - - inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm)); -/* - This function returns two values, one in the lower 16 bits of the return - value, and the other in the remaining upper bits, obtained by shifting the - return value down 16 bits. If the upper value is -1 and the lower value is - zero, then inflate() is currently decoding information outside of a block. - If the upper value is -1 and the lower value is non-zero, then inflate is in - the middle of a stored block, with the lower value equaling the number of - bytes from the input remaining to copy. If the upper value is not -1, then - it is the number of bits back from the current bit position in the input of - the code (literal or length/distance pair) currently being processed. In - that case the lower value is the number of bytes already emitted for that - code. - - A code is being processed if inflate is waiting for more input to complete - decoding of the code, or if it has completed decoding but is waiting for - more output space to write the literal or match data. - - inflateMark() is used to mark locations in the input data for random - access, which may be at bit positions, and to note those cases where the - output of a code may span boundaries of random access blocks. The current - location in the input stream can be determined from avail_in and data_type - as noted in the description for the Z_BLOCK flush parameter for inflate. - - inflateMark returns the value noted above or -1 << 16 if the provided - source stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm, - gz_headerp head)); -/* - inflateGetHeader() requests that gzip header information be stored in the - provided gz_header structure. inflateGetHeader() may be called after - inflateInit2() or inflateReset(), and before the first call of inflate(). - As inflate() processes the gzip stream, head->done is zero until the header - is completed, at which time head->done is set to one. If a zlib stream is - being decoded, then head->done is set to -1 to indicate that there will be - no gzip header information forthcoming. Note that Z_BLOCK or Z_TREES can be - used to force inflate() to return immediately after header processing is - complete and before any actual data is decompressed. - - The text, time, xflags, and os fields are filled in with the gzip header - contents. hcrc is set to true if there is a header CRC. (The header CRC - was valid if done is set to one.) If extra is not Z_NULL, then extra_max - contains the maximum number of bytes to write to extra. Once done is true, - extra_len contains the actual extra field length, and extra contains the - extra field, or that field truncated if extra_max is less than extra_len. - If name is not Z_NULL, then up to name_max characters are written there, - terminated with a zero unless the length is greater than name_max. If - comment is not Z_NULL, then up to comm_max characters are written there, - terminated with a zero unless the length is greater than comm_max. When any - of extra, name, or comment are not Z_NULL and the respective field is not - present in the header, then that field is set to Z_NULL to signal its - absence. This allows the use of deflateSetHeader() with the returned - structure to duplicate the header. However if those fields are set to - allocated memory, then the application will need to save those pointers - elsewhere so that they can be eventually freed. - - If inflateGetHeader is not used, then the header information is simply - discarded. The header is always checked for validity, including the header - CRC if present. inflateReset() will reset the process to discard the header - information. The application would need to call inflateGetHeader() again to - retrieve the header from the next gzip stream. - - inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits, - unsigned char FAR *window)); - - Initialize the internal stream state for decompression using inflateBack() - calls. The fields zalloc, zfree and opaque in strm must be initialized - before the call. If zalloc and zfree are Z_NULL, then the default library- - derived memory allocation routines are used. windowBits is the base two - logarithm of the window size, in the range 8..15. window is a caller - supplied buffer of that size. Except for special applications where it is - assured that deflate was used with small window sizes, windowBits must be 15 - and a 32K byte window must be supplied to be able to decompress general - deflate streams. - - See inflateBack() for the usage of these routines. - - inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of - the paramaters are invalid, Z_MEM_ERROR if the internal state could not be - allocated, or Z_VERSION_ERROR if the version of the library does not match - the version of the header file. -*/ - -typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *)); -typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); - -ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm, - in_func in, void FAR *in_desc, - out_func out, void FAR *out_desc)); -/* - inflateBack() does a raw inflate with a single call using a call-back - interface for input and output. This is more efficient than inflate() for - file i/o applications in that it avoids copying between the output and the - sliding window by simply making the window itself the output buffer. This - function trusts the application to not change the output buffer passed by - the output function, at least until inflateBack() returns. - - inflateBackInit() must be called first to allocate the internal state - and to initialize the state with the user-provided window buffer. - inflateBack() may then be used multiple times to inflate a complete, raw - deflate stream with each call. inflateBackEnd() is then called to free the - allocated state. - - A raw deflate stream is one with no zlib or gzip header or trailer. - This routine would normally be used in a utility that reads zip or gzip - files and writes out uncompressed files. The utility would decode the - header and process the trailer on its own, hence this routine expects only - the raw deflate stream to decompress. This is different from the normal - behavior of inflate(), which expects either a zlib or gzip header and - trailer around the deflate stream. - - inflateBack() uses two subroutines supplied by the caller that are then - called by inflateBack() for input and output. inflateBack() calls those - routines until it reads a complete deflate stream and writes out all of the - uncompressed data, or until it encounters an error. The function's - parameters and return types are defined above in the in_func and out_func - typedefs. inflateBack() will call in(in_desc, &buf) which should return the - number of bytes of provided input, and a pointer to that input in buf. If - there is no input available, in() must return zero--buf is ignored in that - case--and inflateBack() will return a buffer error. inflateBack() will call - out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() - should return zero on success, or non-zero on failure. If out() returns - non-zero, inflateBack() will return with an error. Neither in() nor out() - are permitted to change the contents of the window provided to - inflateBackInit(), which is also the buffer that out() uses to write from. - The length written by out() will be at most the window size. Any non-zero - amount of input may be provided by in(). - - For convenience, inflateBack() can be provided input on the first call by - setting strm->next_in and strm->avail_in. If that input is exhausted, then - in() will be called. Therefore strm->next_in must be initialized before - calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called - immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in - must also be initialized, and then if strm->avail_in is not zero, input will - initially be taken from strm->next_in[0 .. strm->avail_in - 1]. - - The in_desc and out_desc parameters of inflateBack() is passed as the - first parameter of in() and out() respectively when they are called. These - descriptors can be optionally used to pass any information that the caller- - supplied in() and out() functions need to do their job. - - On return, inflateBack() will set strm->next_in and strm->avail_in to - pass back any unused input that was provided by the last in() call. The - return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR - if in() or out() returned an error, Z_DATA_ERROR if there was a format error - in the deflate stream (in which case strm->msg is set to indicate the nature - of the error), or Z_STREAM_ERROR if the stream was not properly initialized. - In the case of Z_BUF_ERROR, an input or output error can be distinguished - using strm->next_in which will be Z_NULL only if in() returned an error. If - strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning - non-zero. (in() will always be called before out(), so strm->next_in is - assured to be defined if out() returns non-zero.) Note that inflateBack() - cannot return Z_OK. -*/ - -ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm)); -/* - All memory allocated by inflateBackInit() is freed. - - inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream - state was inconsistent. -*/ - -ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); -/* Return flags indicating compile-time options. - - Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: - 1.0: size of uInt - 3.2: size of uLong - 5.4: size of voidpf (pointer) - 7.6: size of z_off_t - - Compiler, assembler, and debug options: - 8: DEBUG - 9: ASMV or ASMINF -- use ASM code - 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention - 11: 0 (reserved) - - One-time table building (smaller code, but not thread-safe if true): - 12: BUILDFIXED -- build static block decoding tables when needed - 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed - 14,15: 0 (reserved) - - Library content (indicates missing functionality): - 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking - deflate code when not needed) - 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect - and decode gzip streams (to avoid linking crc code) - 18-19: 0 (reserved) - - Operation variations (changes in library functionality): - 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate - 21: FASTEST -- deflate algorithm with only one, lowest compression level - 22,23: 0 (reserved) - - The sprintf variant used by gzprintf (zero is best): - 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format - 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! - 26: 0 = returns value, 1 = void -- 1 means inferred string length returned - - Remainder: - 27-31: 0 (reserved) - */ - - - /* utility functions */ - -/* - The following utility functions are implemented on top of the basic - stream-oriented functions. To simplify the interface, some default options - are assumed (compression level and memory usage, standard memory allocation - functions). The source code of these utility functions can be modified if - you need special options. -*/ - -ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total size - of the destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); -/* - compressBound() returns an upper bound on the compressed size after - compress() or compress2() on sourceLen bytes. It would be used before a - compress() or compress2() call to allocate the destination buffer. -*/ - -ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total size - of the destination buffer, which must be large enough to hold the entire - uncompressed data. (The size of the uncompressed data must have been saved - previously by the compressor and transmitted to the decompressor by some - mechanism outside the scope of this compression library.) Upon exit, destLen - is the actual size of the uncompressed buffer. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. -*/ - - - /* gzip file access functions */ - -/* - This library supports reading and writing files in gzip (.gz) format with - an interface similar to that of stdio, using the functions that start with - "gz". The gzip format is different from the zlib format. gzip is a gzip - wrapper, documented in RFC 1952, wrapped around a deflate stream. -*/ - -typedef voidp gzFile; /* opaque gzip file descriptor */ - -/* -ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); - - Opens a gzip (.gz) file for reading or writing. The mode parameter is as - in fopen ("rb" or "wb") but can also include a compression level ("wb9") or - a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only - compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F' - for fixed code compression as in "wb9F". (See the description of - deflateInit2 for more information about the strategy parameter.) Also "a" - can be used instead of "w" to request that the gzip stream that will be - written be appended to the file. "+" will result in an error, since reading - and writing to the same gzip file is not supported. - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. - - gzopen returns NULL if the file could not be opened, if there was - insufficient memory to allocate the gzFile state, or if an invalid mode was - specified (an 'r', 'w', or 'a' was not provided, or '+' was provided). - errno can be checked to determine if the reason gzopen failed was that the - file could not be opened. -*/ - -ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); -/* - gzdopen associates a gzFile with the file descriptor fd. File descriptors - are obtained from calls like open, dup, creat, pipe or fileno (if the file - has been previously opened with fopen). The mode parameter is as in gzopen. - - The next call of gzclose on the returned gzFile will also close the file - descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor - fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd, - mode);. The duplicated descriptor should be saved to avoid a leak, since - gzdopen does not close fd if it fails. - - gzdopen returns NULL if there was insufficient memory to allocate the - gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not - provided, or '+' was provided), or if fd is -1. The file descriptor is not - used until the next gz* read, write, seek, or close operation, so gzdopen - will not detect if fd is invalid (unless fd is -1). -*/ - -ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size)); -/* - Set the internal buffer size used by this library's functions. The - default buffer size is 8192 bytes. This function must be called after - gzopen() or gzdopen(), and before any other calls that read or write the - file. The buffer memory allocation is always deferred to the first read or - write. Two buffers are allocated, either both of the specified size when - writing, or one of the specified size and the other twice that size when - reading. A larger buffer size of, for example, 64K or 128K bytes will - noticeably increase the speed of decompression (reading). - - The new buffer size also affects the maximum length for gzprintf(). - - gzbuffer() returns 0 on success, or -1 on failure, such as being called - too late. -*/ - -ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. If - the input file was not in gzip format, gzread copies the given number of - bytes into the buffer. - - After reaching the end of a gzip stream in the input, gzread will continue - to read, looking for another gzip stream, or failing that, reading the rest - of the input file directly without decompression. The entire input file - will be read if gzread is called until it returns less than the requested - len. - - gzread returns the number of uncompressed bytes actually read, less than - len for end of file, or -1 for error. -*/ - -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - voidpc buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes written or 0 in case of - error. -*/ - -ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the arguments to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written, or 0 in case of error. The number of - uncompressed bytes written is limited to 8191, or one less than the buffer - size given to gzbuffer(). The caller should assure that this limit is not - exceeded. If it is exceeded, then gzprintf() will return an error (0) with - nothing written. In this case, there may also be a buffer overflow with - unpredictable consequences, which is possible only if zlib was compiled with - the insecure functions sprintf() or vsprintf() because the secure snprintf() - or vsnprintf() functions were not available. This can be determined using - zlibCompileFlags(). -*/ - -ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - - gzputs returns the number of characters written, or -1 in case of error. -*/ - -ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or a - newline character is read and transferred to buf, or an end-of-file - condition is encountered. If any characters are read or if len == 1, the - string is terminated with a null character. If no characters are read due - to an end-of-file or len < 1, then the buffer is left untouched. - - gzgets returns buf which is a null-terminated string, or it returns NULL - for end-of-file or in case of error. If there was an error, the contents at - buf are indeterminate. -*/ - -ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. gzputc - returns the value that was written, or -1 in case of error. -*/ - -ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte or -1 - in case of end of file or error. -*/ - -ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); -/* - Push one character back onto the stream to be read as the first character - on the next read. At least one character of push-back is allowed. - gzungetc() returns the character pushed, or -1 on failure. gzungetc() will - fail if c is -1, and may fail if a character has been pushed but not read - yet. If gzungetc is used immediately after gzopen or gzdopen, at least the - output buffer size of pushed characters is allowed. (See gzbuffer above.) - The pushed character will be discarded if the stream is repositioned with - gzseek() or gzrewind(). -*/ - -ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter flush - is as in the deflate() function. The return value is the zlib error number - (see function gzerror below). gzflush is only permitted when writing. - - If the flush parameter is Z_FINISH, the remaining data is written and the - gzip stream is completed in the output. If gzwrite() is called again, a new - gzip stream will be started in the output. gzread() is able to read such - concatented gzip streams. - - gzflush should be called only when strictly necessary because it will - degrade compression if called too often. -*/ - -/* -ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); - - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -/* -ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); - - Returns the starting position for the next gzread or gzwrite on the given - compressed file. This position represents a number of bytes in the - uncompressed data stream, and is zero when starting, even if appending or - reading a gzip stream from the middle of a file using gzdopen(). - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -/* -ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file)); - - Returns the current offset in the file being read or written. This offset - includes the count of bytes that precede the gzip stream, for example when - appending or when using gzdopen() for reading. When reading, the offset - does not include as yet unused buffered input. This information can be used - for a progress indicator. On error, gzoffset() returns -1. -*/ - -ZEXTERN int ZEXPORT gzeof OF((gzFile file)); -/* - Returns true (1) if the end-of-file indicator has been set while reading, - false (0) otherwise. Note that the end-of-file indicator is set only if the - read tried to go past the end of the input, but came up short. Therefore, - just like feof(), gzeof() may return false even if there is no more data to - read, in the event that the last read request was for the exact number of - bytes remaining in the input file. This will happen if the input file size - is an exact multiple of the buffer size. - - If gzeof() returns true, then the read functions will return no more data, - unless the end-of-file indicator is reset by gzclearerr() and the input file - has grown since the previous end of file was detected. -*/ - -ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); -/* - Returns true (1) if file is being copied directly while reading, or false - (0) if file is a gzip stream being decompressed. This state can change from - false to true while reading the input file if the end of a gzip stream is - reached, but is followed by data that is not another gzip stream. - - If the input file is empty, gzdirect() will return true, since the input - does not contain a gzip stream. - - If gzdirect() is used immediately after gzopen() or gzdopen() it will - cause buffers to be allocated to allow reading the file to determine if it - is a gzip file. Therefore if gzbuffer() is used, it should be called before - gzdirect(). -*/ - -ZEXTERN int ZEXPORT gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file and - deallocates the (de)compression state. Note that once file is closed, you - cannot call gzerror with file, since its structures have been deallocated. - gzclose must not be called more than once on the same file, just as free - must not be called more than once on the same allocation. - - gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a - file operation error, or Z_OK on success. -*/ - -ZEXTERN int ZEXPORT gzclose_r OF((gzFile file)); -ZEXTERN int ZEXPORT gzclose_w OF((gzFile file)); -/* - Same as gzclose(), but gzclose_r() is only for use when reading, and - gzclose_w() is only for use when writing or appending. The advantage to - using these instead of gzclose() is that they avoid linking in zlib - compression or decompression code that is not used when only reading or only - writing respectively. If gzclose() is used, then both compression and - decompression code will be included the application when linking to a static - zlib library. -*/ - -ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the given - compressed file. errnum is set to zlib error number. If an error occurred - in the file system and not in the compression library, errnum is set to - Z_ERRNO and the application may consult errno to get the exact error code. - - The application must not modify the returned string. Future calls to - this function may invalidate the previously returned string. If file is - closed, then the string previously returned by gzerror will no longer be - available. - - gzerror() should be used to distinguish errors from end-of-file for those - functions above that do not distinguish those cases in their return values. -*/ - -ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); -/* - Clears the error and end-of-file flags for file. This is analogous to the - clearerr() function in stdio. This is useful for continuing to read a gzip - file that is being written concurrently. -*/ - - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the compression - library. -*/ - -ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is Z_NULL, this function returns the - required initial value for the checksum. - - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. - - Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -/* -ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, - z_off_t len2)); - - Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 - and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for - each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of - seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. -*/ - -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); -/* - Update a running CRC-32 with the bytes buf[0..len-1] and return the - updated CRC-32. If buf is Z_NULL, this function returns the required - initial value for the for the crc. Pre- and post-conditioning (one's - complement) is performed within this function so it shouldn't be done by the - application. - - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ - -/* -ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); - - Combine two CRC-32 check values into one. For two sequences of bytes, - seq1 and seq2 with lengths len1 and len2, CRC-32 check values were - calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 - check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and - len2. -*/ - - - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits, - unsigned char FAR *window, - const char *version, - int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) -#define inflateBackInit(strm, windowBits, window) \ - inflateBackInit_((strm), (windowBits), (window), \ - ZLIB_VERSION, sizeof(z_stream)) - -/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or - * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if - * both are true, the application gets the *64 functions, and the regular - * functions are changed to 64 bits) -- in case these are set on systems - * without large file support, _LFS64_LARGEFILE must also be true - */ -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); - ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); -#endif - -#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0 -# define gzopen gzopen64 -# define gzseek gzseek64 -# define gztell gztell64 -# define gzoffset gzoffset64 -# define adler32_combine adler32_combine64 -# define crc32_combine crc32_combine64 -# ifdef _LARGEFILE64_SOURCE - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int)); - ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); -# endif -#else - ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *)); - ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int)); - ZEXTERN z_off_t ZEXPORT gztell OF((gzFile)); - ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); -#endif - -/* hack for buggy compilers */ -#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) - struct internal_state {int dummy;}; -#endif - -/* undocumented functions */ -ZEXTERN const char * ZEXPORT zError OF((int)); -ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp)); -ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); -ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int)); - -#ifdef __cplusplus -} -#endif - -#endif /* ZLIB_H */ diff --git a/Build/source/texk/web2c/luatexdir/luatex.c b/Build/source/texk/web2c/luatexdir/luatex.c index 014d8bfd247..a057c3a6cc0 100644 --- a/Build/source/texk/web2c/luatexdir/luatex.c +++ b/Build/source/texk/web2c/luatexdir/luatex.c @@ -33,8 +33,8 @@ */ int luatex_version = 109; -int luatex_revision = '0'; -const char *luatex_version_string = "1.09.0"; +int luatex_revision = '2'; +const char *luatex_version_string = "1.09.2"; const char *engine_name = my_name; #include <kpathsea/c-ctype.h> diff --git a/Build/source/texk/web2c/luatexdir/luatex_svnversion.h b/Build/source/texk/web2c/luatexdir/luatex_svnversion.h index 90d51ef701c..95d9421d988 100644 --- a/Build/source/texk/web2c/luatexdir/luatex_svnversion.h +++ b/Build/source/texk/web2c/luatexdir/luatex_svnversion.h @@ -1 +1 @@ -#define luatex_svn_revision 6924 +#define luatex_svn_revision 7018 diff --git a/Build/source/texk/web2c/luatexdir/luatexcallbackids.h b/Build/source/texk/web2c/luatexdir/luatexcallbackids.h index a345edf64e6..4c5e5d140ba 100644 --- a/Build/source/texk/web2c/luatexdir/luatexcallbackids.h +++ b/Build/source/texk/web2c/luatexdir/luatexcallbackids.h @@ -74,6 +74,7 @@ typedef enum { new_graf_callback, page_objnum_provider_callback, make_extensible_callback, + process_pdf_image_content_callback, total_callbacks, } callback_callback_types; diff --git a/Build/source/texk/web2c/luatexdir/luazlib/lzlib.c b/Build/source/texk/web2c/luatexdir/luazlib/lzlib.c index 2de14e3f9e8..2f6f269180e 100644 --- a/Build/source/texk/web2c/luatexdir/luazlib/lzlib.c +++ b/Build/source/texk/web2c/luatexdir/luazlib/lzlib.c @@ -478,23 +478,18 @@ static int lzlib_decompress(lua_State *L) { zs.next_out = (Bytef*)luaL_prepbuffer(&b); zs.avail_out = LUAL_BUFFERSIZE; - /* bake some more */ - ret = inflate(&zs, Z_FINISH); - + ret = inflate(&zs, Z_NO_FLUSH); /* push gathered data */ luaL_addsize(&b, LUAL_BUFFERSIZE - zs.avail_out); - /* need dictionary? - no dictionary support here, so just quit */ if (ret == Z_NEED_DICT) break; - /* done processing? */ if (ret == Z_STREAM_END) break; - /* error condition? */ - if (ret != Z_BUF_ERROR) + if (ret != Z_OK) break; } diff --git a/Build/source/texk/web2c/luatexdir/pdf/pdfgen.c b/Build/source/texk/web2c/luatexdir/pdf/pdfgen.c index 0409dbc33dc..78ce165957f 100644 --- a/Build/source/texk/web2c/luatexdir/pdf/pdfgen.c +++ b/Build/source/texk/web2c/luatexdir/pdf/pdfgen.c @@ -2482,14 +2482,17 @@ void scan_pdfcatalog(PDF pdf) real conforming to the implementation limits of \PDF\ as specified in appendix C.1 of the \PDF\ standard. The maximum value of ints is |+2^32|, the maximum value of reals is |+2^15| and the smallest values of reals is - |1/(2^16)|. + |1/(2^16)|. We are quite large on precision, because it could happen that a + pdf file imported as figure has real numbers with an unusual (and possibly useless) + high precision. Later the formatter will write the numbers in the correct format. */ static pdffloat conv_double_to_pdffloat(double n) { pdffloat a; - a.e = 6; +/* was a.e = 6; */ + a.e = 9 ; a.m = i64round(n * ten_pow[a.e]); return a; } diff --git a/Build/source/texk/web2c/luatexdir/pdf/pdfimage.c b/Build/source/texk/web2c/luatexdir/pdf/pdfimage.c index a8cffb0c871..02e4237c820 100644 --- a/Build/source/texk/web2c/luatexdir/pdf/pdfimage.c +++ b/Build/source/texk/web2c/luatexdir/pdf/pdfimage.c @@ -24,8 +24,8 @@ with LuaTeX; if not, see <http://www.gnu.org/licenses/>. void place_img(PDF pdf, image_dict * idict, scaled_whd dim, int transform) { /*tex A transformation matrix: */ - float a[6]; - float xoff, yoff, tmp; + double a[6]; + double xoff, yoff, tmp; pdfstructure *p = pdf->pstruct; scaledpos pos = pdf->posstruct->pos; /*tex The number of digits after the decimal point: */ @@ -38,10 +38,10 @@ void place_img(PDF pdf, image_dict * idict, scaled_whd dim, int transform) a[1] = a[2] = 0; if (img_type(idict) == IMG_TYPE_PDF || img_type(idict) == IMG_TYPE_PDFMEMSTREAM || img_type(idict) == IMG_TYPE_PDFSTREAM) { - a[0] /= (float) img_xsize(idict); - a[3] /= (float) img_ysize(idict); - xoff = (float) img_xorig(idict) / (float) img_xsize(idict); - yoff = (float) img_yorig(idict) / (float) img_ysize(idict); + a[0] /= (double) img_xsize(idict); + a[3] /= (double) img_ysize(idict); + xoff = (double) img_xorig(idict) / (double) img_xsize(idict); + yoff = (double) img_yorig(idict) / (double) img_ysize(idict); r = 6; } else { if (img_type(idict) == IMG_TYPE_PNG) { @@ -49,7 +49,7 @@ void place_img(PDF pdf, image_dict * idict, scaled_whd dim, int transform) if ((groupref > 0) && (pdf->img_page_group_val == 0)) pdf->img_page_group_val = groupref; } - a[0] /= (float) one_hundred_bp; + a[0] /= (double) one_hundred_bp; a[3] = a[0]; xoff = yoff = 0; r = 4; @@ -90,14 +90,14 @@ void place_img(PDF pdf, image_dict * idict, scaled_whd dim, int transform) break; default:; } - xoff *= (float) dim.wd; - yoff *= (float) (dim.ht + dim.dp); - a[0] *= (float) dim.wd; - a[1] *= (float) (dim.ht + dim.dp); - a[2] *= (float) dim.wd; - a[3] *= (float) (dim.ht + dim.dp); - a[4] = (float) pos.h - xoff; - a[5] = (float) pos.v - yoff; + xoff *= (double) dim.wd; + yoff *= (double) (dim.ht + dim.dp); + a[0] *= (double) dim.wd; + a[1] *= (double) (dim.ht + dim.dp); + a[2] *= (double) dim.wd; + a[3] *= (double) (dim.ht + dim.dp); + a[4] = (double) pos.h - xoff; + a[5] = (double) pos.v - yoff; k = transform + img_rotation(idict); if ((transform & 7) > 3) k++; @@ -107,16 +107,16 @@ void place_img(PDF pdf, image_dict * idict, scaled_whd dim, int transform) break; case 1: /*tex rotation over 90 degrees (counterclockwise) */ - a[4] += (float) dim.wd; + a[4] += (double) dim.wd; break; case 2: /*tex rotation over 180 degrees (counterclockwise) */ - a[4] += (float) dim.wd; - a[5] += (float) (dim.ht + dim.dp); + a[4] += (double) dim.wd; + a[5] += (double) (dim.ht + dim.dp); break; case 3: /*tex rotation over 270 degrees (counterclockwise) */ - a[5] += (float) (dim.ht + dim.dp); + a[5] += (double) (dim.ht + dim.dp); break; default:; } diff --git a/Build/source/texk/web2c/luatexdir/pdf/pdflistout.c b/Build/source/texk/web2c/luatexdir/pdf/pdflistout.c index 9dbdaeefa28..86567c1dc4e 100644 --- a/Build/source/texk/web2c/luatexdir/pdf/pdflistout.c +++ b/Build/source/texk/web2c/luatexdir/pdf/pdflistout.c @@ -237,6 +237,8 @@ void hlist_out(PDF pdf, halfword this_box, int rule_callback_id) int i; /*tex DVI! \.{DVI} byte location upon entry */ int saved_loc = 0; + /*tex safeguard */ + int dir_done = 0; /*tex DVI! what |dvi| should pop to */ scaledpos saved_pos = { 0, 0 }; int synctex = synctex_par ; @@ -576,12 +578,15 @@ void hlist_out(PDF pdf, halfword this_box, int rule_callback_id) localpos.dir = dir_dir(p); cur.h = 0; cur.v = 0; - } else { + dir_done = 1; + } else if (dir_done) { refpos->pos.h = dir_refpos_h(p); refpos->pos.v = dir_refpos_v(p); localpos.dir = dir_dir(p); cur.h = dir_cur_h(p); cur.v = dir_cur_v(p); + } else { + /*tex maybe issue a warning */ } break; case whatsit_node: diff --git a/Build/source/texk/web2c/luatexdir/pdf/pdftypes.h b/Build/source/texk/web2c/luatexdir/pdf/pdftypes.h index ef6a31e167d..67ffcbecb22 100644 --- a/Build/source/texk/web2c/luatexdir/pdf/pdftypes.h +++ b/Build/source/texk/web2c/luatexdir/pdf/pdftypes.h @@ -41,7 +41,7 @@ #ifdef _WIN32 # define i64round(a) (int64_t) win32_floor((a) + 0.5) #else -# define i64round(a) (int64_t) lround((a)) +# define i64round(a) (int64_t) llround((a)) #endif diff --git a/Build/source/texk/web2c/luatexdir/tex/mainbody.c b/Build/source/texk/web2c/luatexdir/tex/mainbody.c index ca9a79dbb02..9116d8bdb67 100644 --- a/Build/source/texk/web2c/luatexdir/tex/mainbody.c +++ b/Build/source/texk/web2c/luatexdir/tex/mainbody.c @@ -668,6 +668,7 @@ void close_files_and_terminate(void) print_ln(); } lua_a_close_out(log_file); + log_opened_global = false; } callback_id = callback_defined(wrapup_run_callback); if (callback_id > 0) { diff --git a/Build/source/texk/web2c/luatexdir/tex/maincontrol.c b/Build/source/texk/web2c/luatexdir/tex/maincontrol.c index 295e2c6ccae..2768bff72a2 100644 --- a/Build/source/texk/web2c/luatexdir/tex/maincontrol.c +++ b/Build/source/texk/web2c/luatexdir/tex/maincontrol.c @@ -131,9 +131,15 @@ static void run_node (void) { n = copy_node_list(n); } tail_append(n); + if (nodetype_has_attributes(type(n)) && node_attr(n) == null) { + build_attribute_list(n); + } while (vlink(n) != null) { n = vlink(n); tail_append(n); + if (nodetype_has_attributes(type(n)) && node_attr(n) == null) { + build_attribute_list(n); + } } } @@ -2692,9 +2698,8 @@ void prefixed_command(void) /*tex |letcharcode| */ scan_int(); if (cur_val > 0) { - cur_cs = active_to_cs(cur_val, true); - set_token_info(cur_cs, cur_cs + cs_token_flag); - p = cur_cs; + /*tex HH: I need to do a more extensive test later. */ + p = active_to_cs(cur_val, true); do { get_token(); } while (cur_cmd == spacer_cmd); diff --git a/Build/source/texk/web2c/luatexdir/tex/mlist.c b/Build/source/texk/web2c/luatexdir/tex/mlist.c index 8f6d71eb294..abeb3b461b3 100644 --- a/Build/source/texk/web2c/luatexdir/tex/mlist.c +++ b/Build/source/texk/web2c/luatexdir/tex/mlist.c @@ -1146,8 +1146,9 @@ static pointer char_box(internal_font_number f, int c, pointer bb) width(b) = char_width(f, c) + char_italic(f, c); height(b) = char_height(f, c); depth(b) = char_depth(f, c); + subtype(b) = math_char_list ; reset_attributes(b, bb); - p = new_char(f, c); + p = new_glyph(f, c); reset_attributes(p, bb); list_ptr(b) = p; return b; @@ -1475,8 +1476,10 @@ pointer make_extensible(internal_font_number fnt, halfword chr, scaled v, scaled } if (horizontal) { width(b) = b_max; + subtype(b) = math_h_extensible_list; } else { height(b) = b_max; + subtype(b) = math_v_extensible_list; } return b; } @@ -1537,8 +1540,9 @@ static pointer do_delimiter(pointer q, pointer d, int s, scaled v, boolean flat, extinfo *ext; f = null_font; c = 0; - if (d == null) + if (d == null) { goto FOUND; + } z = small_fam(d); x = small_char(d); i = 0; @@ -1650,9 +1654,11 @@ static pointer do_delimiter(pointer q, pointer d, int s, scaled v, boolean flat, reset_attributes(b, att); if (flat) { width(b) = 0; + subtype(b) = math_h_delimiter_list; } else { /*tex Use this width if no delimiter was found. */ width(b) = null_delimiter_space_par; + subtype(b) = math_v_delimiter_list; } if (delta != NULL) { *delta = 0; @@ -1876,7 +1882,7 @@ void run_mlist_to_hlist(halfword p, boolean penalties, int mstyle) */ -static pointer clean_box(pointer p, int s, int cur_style) +static pointer clean_box(pointer p, int s, int cur_style, halfword st) { /*tex beginning of a list to be boxed */ pointer q; @@ -1901,6 +1907,7 @@ static pointer clean_box(pointer p, int s, int cur_style) break; default: q = new_null_box(); + subtype(q) = math_list_list; goto FOUND; } mlist_to_hlist(mlist, false, s); @@ -1917,6 +1924,7 @@ static pointer clean_box(pointer p, int s, int cur_style) x = hpack(q, 0, additional, -1); if (x != q && q != null) reset_attributes(x, node_attr(q)); + subtype(x) = st; /*tex Here we save memory space in a common case. */ q = list_ptr(x); if (is_char_node(q)) { @@ -2061,9 +2069,10 @@ static void make_over(pointer q, int cur_style, int cur_size, int cur_fam) } } } - p = overbar(clean_box(nucleus(q), cramped_style(cur_style), cur_style), + p = overbar(clean_box(nucleus(q), cramped_style(cur_style), cur_style, math_nucleus_list), overbar_vgap(cur_style), used_thickness, overbar_kern(cur_style), node_attr(nucleus(q)), math_over_rule, cur_size, used_fam); + subtype(p) = math_over_list; math_list(nucleus(q)) = p; type(nucleus(q)) = sub_box_node; } @@ -2083,7 +2092,7 @@ static void make_under(pointer q, int cur_style, int cur_size, int cur_fam) scaled f, t; scaled used_thickness = underbar_rule(cur_style); scaled used_fam = cur_fam; - x = clean_box(nucleus(q), cur_style, cur_style); + x = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); p = new_kern(underbar_vgap(cur_style)); reset_attributes(p, node_attr(q)); couple_nodes(x,p); @@ -2104,6 +2113,7 @@ static void make_under(pointer q, int cur_style, int cur_size, int cur_fam) couple_nodes(p,r); y = vpackage(x, 0, additional, max_dimen, math_direction_par); reset_attributes(y, node_attr(q)); + subtype(y) = math_under_list; delta = height(y) + depth(y) + underbar_kern(cur_style); height(y) = height(x); depth(y) = delta - height(y); @@ -2170,7 +2180,7 @@ static void make_radical(pointer q, int cur_style) /*tex dimensions involved in the calculation */ scaled delta, clr, theta, h, f; scaled t, used_fam ; - x = clean_box(nucleus(q), cramped_style(cur_style), cur_style); + x = clean_box(nucleus(q), cramped_style(cur_style), cur_style, math_nucleus_list); clr = radical_vgap(cur_style); theta = radical_rule_par(cur_style); used_fam = small_fam(left_delimiter(q)); @@ -2240,10 +2250,11 @@ static void make_radical(pointer q, int cur_style) shift_amount(y) = (height(y) - theta) - (height(x) + clr); h = depth(y) + height(y); p = overbar(x, clr, theta, radical_kern(cur_style), node_attr(y), math_radical_rule, cur_size, used_fam); + subtype(p) = math_radical_list; couple_nodes(y,p); if (degree(q) != null) { scaled wr, br, ar; - pointer r = clean_box(degree(q), script_script_style, cur_style); + pointer r = clean_box(degree(q), script_script_style, cur_style, math_degree_list); reset_attributes(r, node_attr(degree(q))); wr = width(r); if (wr == 0) { @@ -2277,11 +2288,12 @@ static void make_radical(pointer q, int cur_style) /*tex Construct a vlist box: */ -static pointer wrapup_over_under_delimiter(pointer x, pointer y, pointer q, scaled shift_up, scaled shift_down) +static pointer wrapup_over_under_delimiter(pointer x, pointer y, pointer q, scaled shift_up, scaled shift_down, halfword st) { pointer p; pointer v = new_null_box(); type(v) = vlist_node; + subtype(v) = st; height(v) = shift_up + height(x); depth(v) = depth(y) + shift_down; reset_attributes(v, node_attr(q)); @@ -2354,7 +2366,7 @@ static void make_over_delimiter(pointer q, int cur_style) pointer x, y, v; scaled shift_up, shift_down, clr, delta, wd; boolean stack; - x = clean_box(nucleus(q), sub_style(cur_style), cur_style); + x = clean_box(nucleus(q), sub_style(cur_style), cur_style, math_nucleus_list); check_widths(q,x); y = do_delimiter(q, left_delimiter(q), cur_size, wd, true, cur_style, true, &stack, NULL, NULL); left_delimiter(q) = null; @@ -2367,7 +2379,7 @@ static void make_over_delimiter(pointer q, int cur_style) if (delta > 0) { shift_up = shift_up + delta; } - v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down); + v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down, math_over_delimiter_list); /*tex This also equals |width(y)|: */ width(v) = width(x); math_list(nucleus(q)) = v; @@ -2385,7 +2397,7 @@ static void make_under_delimiter(pointer q, int cur_style) pointer x, y, v; scaled shift_up, shift_down, clr, delta, wd; boolean stack; - y = clean_box(nucleus(q), sup_style(cur_style), cur_style); + y = clean_box(nucleus(q), sup_style(cur_style), cur_style, math_nucleus_list); check_widths(q,y); x = do_delimiter(q, left_delimiter(q), cur_size, wd, true, cur_style, true, &stack, NULL, NULL); left_delimiter(q) = null; @@ -2398,7 +2410,7 @@ static void make_under_delimiter(pointer q, int cur_style) if (delta > 0) { shift_down = shift_down + delta; } - v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down); + v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down, math_under_delimiter_list); /*tex This also equals |width(y)|: */ width(v) = width(y); math_list(nucleus(q)) = v; @@ -2416,7 +2428,7 @@ static void make_delimiter_over(pointer q, int cur_style) pointer x, y, v; scaled shift_up, shift_down, clr, actual, wd; boolean stack; - y = clean_box(nucleus(q), cur_style, cur_style); + y = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); check_widths(q,y); x = do_delimiter(q, left_delimiter(q), cur_size + (cur_size == script_script_size ? 0 : 1), wd, true, cur_style, true, &stack, NULL, NULL); left_delimiter(q) = null; @@ -2429,7 +2441,7 @@ static void make_delimiter_over(pointer q, int cur_style) if (actual < clr) { shift_up = shift_up + (clr-actual); } - v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down); + v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down, math_over_delimiter_list); /*tex This also equals |width(y)|: */ width(v) = width(x); math_list(nucleus(q)) = v; @@ -2447,7 +2459,7 @@ static void make_delimiter_under(pointer q, int cur_style) pointer x, y, v; scaled shift_up, shift_down, clr, actual, wd; boolean stack; - x = clean_box(nucleus(q), cur_style, cur_style); + x = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); check_widths(q,x); y = do_delimiter(q, left_delimiter(q), cur_size + (cur_size == script_script_size ? 0 : 1), wd, true, cur_style, true, &stack, NULL, NULL); left_delimiter(q) = null; @@ -2460,7 +2472,7 @@ static void make_delimiter_under(pointer q, int cur_style) if (actual<clr) { shift_down += (clr-actual); } - v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down); + v = wrapup_over_under_delimiter(x, y, q, shift_up, shift_down, math_under_delimiter_list); /*tex This also equals |width(y)|: */ width(v) = width(y); math_list(nucleus(q)) = v; @@ -2585,7 +2597,7 @@ static void do_make_math_accent(pointer q, internal_font_number f, int c, int fl } /*tex Compute the amount of skew, or set |s| to an alignment point */ s_is_absolute = compute_accent_skew(q, flags, &s); - x = clean_box(nucleus(q), cramped_style(cur_style), cur_style); + x = clean_box(nucleus(q), cramped_style(cur_style), cur_style, math_nucleus_list); w = width(x); h = height(x); if (do_new_math(cur_f) && !s_is_absolute) { @@ -2661,7 +2673,7 @@ static void do_make_math_accent(pointer q, internal_font_number f, int c, int fl subscr(q) = null; type(nucleus(q)) = sub_mlist_node; math_list(nucleus(q)) = x; - x = clean_box(nucleus(q), cur_style, cur_style); + x = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); delta = delta + height(x) - h; h = height(x); } @@ -2722,6 +2734,7 @@ static void do_make_math_accent(pointer q, internal_font_number f, int c, int fl } r = vpackage(y, 0, additional, max_dimen, math_direction_par); reset_attributes(r, node_attr(q)); + subtype(r) = math_accent_list; width(r) = width(x); y = r; if (flags & (TOP_CODE | OVERLAY_CODE)) { @@ -2815,8 +2828,8 @@ static void make_fraction(pointer q, int cur_style) are displaced from the baseline. */ - x = clean_box(numerator(q), num_style(cur_style), cur_style); - z = clean_box(denominator(q), denom_style(cur_style), cur_style); + x = clean_box(numerator(q), num_style(cur_style), cur_style, math_numerator_list); + z = clean_box(denominator(q), denom_style(cur_style), cur_style, math_denominator_list); if (middle_delimiter(q) != null) { delta = 0; m = do_delimiter(q, middle_delimiter(q), cur_size, delta, false, cur_style, true, NULL, NULL, NULL); @@ -2892,6 +2905,7 @@ static void make_fraction(pointer q, int cur_style) v = new_null_box(); reset_attributes(v, node_attr(q)); type(v) = hlist_node; + subtype(v) = math_numerator_list; list_ptr(v) = x; width(v) = width(x); height(v) = height(x) + shift_up; @@ -2901,6 +2915,7 @@ static void make_fraction(pointer q, int cur_style) v = new_null_box(); reset_attributes(v, node_attr(q)); type(v) = hlist_node; + subtype(v) = math_denominator_list; list_ptr(v) = z; width(v) = width(z); height(v) = height(z); @@ -2908,6 +2923,7 @@ static void make_fraction(pointer q, int cur_style) shift_amount(v) = shift_down; z = v; v = new_null_box(); + subtype(v) = math_fraction_list; reset_attributes(v, node_attr(q)); type(v) = hlist_node; if (height(x) > height(z)) { @@ -2954,6 +2970,7 @@ static void make_fraction(pointer q, int cur_style) */ v = new_null_box(); type(v) = vlist_node; + subtype(v) = math_fraction_list; height(v) = shift_up + height(x); depth(v) = depth(z) + shift_down; /*tex This also equals |width(z)|. */ @@ -2997,6 +3014,8 @@ static void make_fraction(pointer q, int cur_style) couple_nodes(v,r); y = hpack(l, 0, additional, -1); reset_attributes(y, node_attr(q)); + /*tex There can also be a nested one: */ + subtype(y) = math_fraction_list; assign_new_hlist(q, y); } @@ -3045,7 +3064,7 @@ static scaled make_op(pointer q, int cur_style) if (ok_size != undefined_math_parameter) { /*tex creating a temporary delimiter is the cleanest way */ y = new_node(delim_node, 0); - reset_attributes(y, node_attr(q)); + reset_attributes(y, node_attr(nucleus(q))); small_fam(y) = math_fam(nucleus(q)); small_char(y) = math_character(nucleus(q)); x = do_delimiter(q, y, text_size, ok_size, false, cur_style, true, NULL, &delta, NULL); @@ -3067,7 +3086,7 @@ static scaled make_op(pointer q, int cur_style) math_character(nucleus(q)) = c; } delta = char_italic(cur_f, cur_c); - x = clean_box(nucleus(q), cur_style, cur_style); + x = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); if (delta != 0) { if (do_new_math(cur_f)) { /*tex we never added italic correction */ @@ -3081,7 +3100,7 @@ static scaled make_op(pointer q, int cur_style) } else { /*tex normal size */ delta = char_italic(cur_f, cur_c); - x = clean_box(nucleus(q), cur_style, cur_style); + x = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); if (delta != 0) { if (do_new_math(cur_f)) { /*tex we never added italic correction */ @@ -3180,12 +3199,13 @@ static scaled make_op(pointer q, int cur_style) be skewed. */ - x = clean_box(supscr(q), sup_style(cur_style), cur_style); - y = clean_box(nucleus(q), cur_style, cur_style); - z = clean_box(subscr(q), sub_style(cur_style), cur_style); + x = clean_box(supscr(q), sup_style(cur_style), cur_style, math_sup_list); + y = clean_box(nucleus(q), cur_style, cur_style, math_nucleus_list); + z = clean_box(subscr(q), sub_style(cur_style), cur_style, math_sub_list); v = new_null_box(); reset_attributes(v, node_attr(q)); type(v) = vlist_node; + subtype(v) = math_limits_list; if (do_new_math(cur_f)) { n = nucleus(q); if (n != null) { @@ -3724,7 +3744,7 @@ static void make_scripts(pointer q, pointer p, scaled it, int cur_style, scaled should not exceed the baseline plus four-fifths of the x-height. */ - x = clean_box(subscr(q), (noadoptionnosubscript(q) ? cur_style : sub_style(cur_style)), cur_style); + x = clean_box(subscr(q), (noadoptionnosubscript(q) ? cur_style : sub_style(cur_style)), cur_style, math_sub_list); width(x) = width(x) + space_after_script(cur_style); switch (math_scripts_mode_par) { case 1: @@ -3774,7 +3794,7 @@ static void make_scripts(pointer q, pointer p, scaled it, int cur_style, scaled never descend below the baseline plus one-fourth of the x-height. */ - x = clean_box(supscr(q), (noadoptionnosupscript(q) ? cur_style : sup_style(cur_style)), cur_style); + x = clean_box(supscr(q), (noadoptionnosupscript(q) ? cur_style : sup_style(cur_style)), cur_style, math_sup_list); width(x) = width(x) + space_after_script(cur_style); switch (math_scripts_mode_par) { case 1: @@ -3832,7 +3852,7 @@ static void make_scripts(pointer q, pointer p, scaled it, int cur_style, scaled four-fifths of the x-height. */ - y = clean_box(subscr(q), (noadoptionnosubscript(q) ? cur_style : sub_style(cur_style)), cur_style); + y = clean_box(subscr(q), (noadoptionnosubscript(q) ? cur_style : sub_style(cur_style)), cur_style, math_sub_list); width(y) = width(y) + space_after_script(cur_style); switch (math_scripts_mode_par) { case 1: @@ -3912,6 +3932,7 @@ static void make_scripts(pointer q, pointer p, scaled it, int cur_style, scaled /*tex We end up with funny dimensions. */ x = vpackage(x, 0, additional, max_dimen, math_direction_par); reset_attributes(x, node_attr(q)); + subtype(x) = math_scripts_list; shift_amount(x) = shift_down; } } diff --git a/Build/source/texk/web2c/luatexdir/tex/packaging.c b/Build/source/texk/web2c/luatexdir/tex/packaging.c index e2b007f11ef..3d23c8b7320 100644 --- a/Build/source/texk/web2c/luatexdir/tex/packaging.c +++ b/Build/source/texk/web2c/luatexdir/tex/packaging.c @@ -2124,6 +2124,9 @@ void begin_box(int box_context) normal_paragraph(); } push_nest(); +/* new */ +/* eq_word_define(int_base + no_local_whatsits_code, 0); */ +eq_word_define(int_base + no_local_dirs_code, 0); cur_list.mode_field = -k; if (k == vmode) { prev_depth_par = ignore_depth; diff --git a/Build/source/texk/web2c/luatexdir/tex/printing.c b/Build/source/texk/web2c/luatexdir/tex/printing.c index 0a961071b05..6ad4634a1f3 100644 --- a/Build/source/texk/web2c/luatexdir/tex/printing.c +++ b/Build/source/texk/web2c/luatexdir/tex/printing.c @@ -466,7 +466,8 @@ void tprint(const char *sss) /*tex What is left is the 3 term/log settings. */ if (dolog || doterm) { buffer = xmalloc(strlen(sss)*3); - if (dolog) { + /*tex The |wrapup_run| callback acts when the log file is already closed.*/ + if (dolog && log_opened_global) { const unsigned char *ss = (const unsigned char *) sss; while (*ss) { int s = *ss++; diff --git a/Build/source/texk/web2c/luatexdir/tex/texnodes.c b/Build/source/texk/web2c/luatexdir/tex/texnodes.c index 1dd28cdf56d..e0bf1522749 100644 --- a/Build/source/texk/web2c/luatexdir/tex/texnodes.c +++ b/Build/source/texk/web2c/luatexdir/tex/texnodes.c @@ -345,15 +345,36 @@ subtype_info node_subtypes_marginkern[] = { }; subtype_info node_subtypes_list[] = { - { unknown_list, NULL, 0 }, - { line_list, NULL, 0 }, - { hbox_list, NULL, 0 }, - { indent_list, NULL, 0 }, - { align_row_list, NULL, 0 }, - { align_cell_list, NULL, 0 }, - { equation_list, NULL, 0 }, - { equation_number_list, NULL, 0 }, - { -1, NULL, 0 }, + { unknown_list, NULL, 0 }, + { line_list, NULL, 0 }, + { hbox_list, NULL, 0 }, + { indent_list, NULL, 0 }, + { align_row_list, NULL, 0 }, + { align_cell_list, NULL, 0 }, + { equation_list, NULL, 0 }, + { equation_number_list, NULL, 0 }, + { math_list_list, NULL, 0 }, + { math_char_list, NULL, 0 }, + { math_h_extensible_list, NULL, 0 }, + { math_v_extensible_list, NULL, 0 }, + { math_h_delimiter_list, NULL, 0 }, + { math_v_delimiter_list, NULL, 0 }, + { math_over_delimiter_list, NULL, 0 }, + { math_under_delimiter_list, NULL, 0 }, + { math_numerator_list, NULL, 0 }, + { math_denominator_list, NULL, 0 }, + { math_limits_list, NULL, 0 }, + { math_fraction_list, NULL, 0 }, + { math_nucleus_list, NULL, 0 }, + { math_sup_list, NULL, 0 }, + { math_sub_list, NULL, 0 }, + { math_degree_list, NULL, 0 }, + { math_scripts_list, NULL, 0 }, + { math_over_list, NULL, 0 }, + { math_under_list, NULL, 0 }, + { math_accent_list, NULL, 0 }, + { math_radical_list, NULL, 0 }, + { -1, NULL, 0 }, }; subtype_info node_subtypes_adjust[] = { @@ -610,14 +631,35 @@ void l_set_node_data(void) { init_node_key(node_subtypes_fence, right_noad_side, right) init_node_key(node_subtypes_fence, no_noad_side, no) - init_node_key(node_subtypes_list, unknown_list, unknown) - init_node_key(node_subtypes_list, line_list, line) - init_node_key(node_subtypes_list, hbox_list, box) - init_node_key(node_subtypes_list, indent_list, indent) - init_node_key(node_subtypes_list, align_row_list, alignment) - init_node_key(node_subtypes_list, align_cell_list, cell) - init_node_key(node_subtypes_list, equation_list, equation) - init_node_key(node_subtypes_list, equation_number_list, equationnumber) + init_node_key(node_subtypes_list, unknown_list, unknown) + init_node_key(node_subtypes_list, line_list, line) + init_node_key(node_subtypes_list, hbox_list, box) + init_node_key(node_subtypes_list, indent_list, indent) + init_node_key(node_subtypes_list, align_row_list, alignment) + init_node_key(node_subtypes_list, align_cell_list, cell) + init_node_key(node_subtypes_list, equation_list, equation) + init_node_key(node_subtypes_list, equation_number_list, equationnumber) + init_node_key(node_subtypes_list, math_list_list, math) + init_node_key(node_subtypes_list, math_char_list, mathchar) + init_node_key(node_subtypes_list, math_h_extensible_list, hextensible) + init_node_key(node_subtypes_list, math_v_extensible_list, vextensible) + init_node_key(node_subtypes_list, math_h_delimiter_list, hdelimiter) + init_node_key(node_subtypes_list, math_v_delimiter_list, vdelimiter) + init_node_key(node_subtypes_list, math_over_delimiter_list, overdelimiter) + init_node_key(node_subtypes_list, math_under_delimiter_list, underdelimiter) + init_node_key(node_subtypes_list, math_numerator_list, numerator) + init_node_key(node_subtypes_list, math_denominator_list, denominator) + init_node_key(node_subtypes_list, math_limits_list, limits) + init_node_key(node_subtypes_list, math_fraction_list, fraction) + init_node_key(node_subtypes_list, math_nucleus_list, nucleus) + init_node_key(node_subtypes_list, math_sup_list, sup) + init_node_key(node_subtypes_list, math_sub_list, sub) + init_node_key(node_subtypes_list, math_degree_list, degree) + init_node_key(node_subtypes_list, math_scripts_list, scripts) + init_node_key(node_subtypes_list, math_over_list, over) + init_node_key(node_subtypes_list, math_under_list, under) + init_node_key(node_subtypes_list, math_accent_list, accent) + init_node_key(node_subtypes_list, math_radical_list, radical) init_node_key(node_subtypes_math, before, beginmath) init_node_key(node_subtypes_math, after, endmath) @@ -4732,7 +4774,7 @@ halfword make_local_par_node(int mode) { int callback_id; halfword q; - halfword p = new_node(local_par_node,0); + halfword p = new_node(local_par_node,mode); local_pen_inter(p) = local_inter_line_penalty_par; local_pen_broken(p) = local_broken_penalty_par; if (local_left_box_par != null) { diff --git a/Build/source/texk/web2c/luatexdir/tex/texnodes.h b/Build/source/texk/web2c/luatexdir/tex/texnodes.h index e77e2916e71..848f9ea4799 100644 --- a/Build/source/texk/web2c/luatexdir/tex/texnodes.h +++ b/Build/source/texk/web2c/luatexdir/tex/texnodes.h @@ -248,14 +248,35 @@ typedef enum { /* todo, make an enum of this */ typedef enum { - unknown_list = 0, - line_list = 1, /* paragraph lines */ - hbox_list = 2, /* \.{\\hbox} */ - indent_list = 3, /* indentation box */ - align_row_list = 4, /* row from a \.{\\halign} or \.{\\valign} */ - align_cell_list = 5, /* cell from a \.{\\halign} or \.{\\valign} */ - equation_list = 6, /* display equation */ - equation_number_list = 7, /* display equation number */ + unknown_list = 0, + line_list = 1, /* paragraph lines */ + hbox_list = 2, /* \.{\\hbox} */ + indent_list = 3, /* indentation box */ + align_row_list = 4, /* row from a \.{\\halign} or \.{\\valign} */ + align_cell_list = 5, /* cell from a \.{\\halign} or \.{\\valign} */ + equation_list = 6, /* display equation */ + equation_number_list = 7, /* display equation number */ + math_list_list = 8, + math_char_list = 9, + math_h_extensible_list = 10, + math_v_extensible_list = 11, + math_h_delimiter_list = 12, + math_v_delimiter_list = 13, + math_over_delimiter_list = 14, + math_under_delimiter_list = 15, + math_numerator_list = 16, + math_denominator_list = 17, + math_limits_list = 18, + math_fraction_list = 19, + math_nucleus_list = 20, + math_sup_list = 21, + math_sub_list = 22, + math_degree_list = 23, + math_scripts_list = 24, + math_over_list = 25, + math_under_list = 26, + math_accent_list = 27, + math_radical_list = 28, } list_subtypes ; # define width(a) varmem[(a)+2].cint diff --git a/Build/source/texk/web2c/luatexdir/utils/utils.c b/Build/source/texk/web2c/luatexdir/utils/utils.c index 55ff1cb3e29..230a3aaa9c5 100644 --- a/Build/source/texk/web2c/luatexdir/utils/utils.c +++ b/Build/source/texk/web2c/luatexdir/utils/utils.c @@ -76,7 +76,10 @@ void make_subset_tag(fd_entry * fd) assert(fd != NULL); assert(fd->gl_tree != NULL); assert(fd->fontname != NULL); - assert(fd->subset_tag == NULL); + // assert(fd->subset_tag == NULL); +if (fd->subset_tag != NULL) { + return; +} fd->subset_tag = xtalloc(SUBSET_TAG_LENGTH + 1, char); do { md5_init(&pms); diff --git a/Build/source/texk/web2c/mplibdir/ChangeLog b/Build/source/texk/web2c/mplibdir/ChangeLog index e2c7244ebf0..90cedb96783 100644 --- a/Build/source/texk/web2c/mplibdir/ChangeLog +++ b/Build/source/texk/web2c/mplibdir/ChangeLog @@ -1,3 +1,12 @@ +2019-01-06 Luigi Scarso <luigi.scarso@gmail.com> + * Added r-mpost as an alias for mpost --restricted + + +2018-10-22 Luigi Scarso <luigi.scarso@gmail.com> + * Fixed a bug in cubic intersection in arbitrary precision math with low precision. + * Raised minimal precision to 2 for decimal and binary mode. + * Added 3 levels to the bisection algorithm for for cubic intersection. + 2018-08-27 Luigi Scarso <luigi.scarso@gmail.com> * separation of mpmathbinary from the the core diff --git a/Build/source/texk/web2c/mplibdir/mp.w b/Build/source/texk/web2c/mplibdir/mp.w index d52ad37ce8b..8afa03cd21c 100644 --- a/Build/source/texk/web2c/mplibdir/mp.w +++ b/Build/source/texk/web2c/mplibdir/mp.w @@ -756,7 +756,7 @@ defined. @<Glob...@>= integer bad; /* is some ``constant'' wrong? */ -@ Later on we will say `|if ( int_packets+17*int_increment>bistack_size )mp->bad=19;|', +@ Later on we will say `|if ( int_packets+(17+3)*int_increment>bistack_size )mp->bad=19;|', or something similar. In case you are wondering about the non-consequtive values of |bad|: most @@ -4797,7 +4797,7 @@ double mp_get_numeric_value (MP mp, const char *s, size_t l) { mp_loop_data *s; s = mp->loop_ptr; while (s != NULL && sym != s->var) - s = mp->loop_ptr->link; + s = s->link; if (s != NULL && sym == s->var ){ mp_xfree (ss); return number_to_double(s->old_value) ; @@ -4857,7 +4857,7 @@ mp_knot mp_get_path_value (MP mp, const char *s, size_t l) { char *ss = mp_xstrdup(mp,s); if (ss) { mp_sym sym = mp_id_lookup(mp,ss,l,false); - if (sym != NULL) { + if (sym != NULL && sym->v.data.node != NULL) { if (mp_type(sym->v.data.node) == mp_path_type) { mp_xfree (ss); return (mp_knot) sym->v.data.node->data.p; @@ -15680,7 +15680,7 @@ mp->bisect_stack = xmalloc ((bistack_size + 1), sizeof (mp_number)); xfree (mp->bisect_stack); @ @<Check the ``constant''...@>= -if (int_packets + 17 * int_increment > bistack_size) +if (int_packets + (17+2) * int_increment > bistack_size) mp->bad = 19; @ Computation of the min and max is a tedious but fairly fast sequence of @@ -15769,11 +15769,28 @@ and |(pp,mp_link(pp))|, respectively. @c static void mp_cubic_intersection (MP mp, mp_knot p, mp_knot pp) { mp_knot q, qq; /* |mp_link(p)|, |mp_link(pp)| */ + mp_number x_two_t; /* increment bit precision by x bit */ mp->time_to_go = max_patience; set_number_from_scaled (mp->max_t, 2); + new_number (x_two_t); + number_clone (x_two_t,two_t); + number_double(x_two_t); number_double(x_two_t); /* add x=3 bit of precision */ + number_double(x_two_t); @<Initialize for intersections at level zero@>; CONTINUE: while (1) { + /* When we are in arbitrary precision math, low precisions can */ + /* lead to acces locations beyond the stack_size: in this case */ + /* we say that there is no intersection.*/ + if ( ((x_packet (mp->xy))+4)>bistack_size || + ((u_packet (mp->uv))+4)>bistack_size || + ((y_packet (mp->xy))+4)>bistack_size || + ((v_packet (mp->uv))+4)>bistack_size ){ + set_number_from_scaled (mp->cur_t, 1); + set_number_from_scaled (mp->cur_tt, 1); + goto NOT_FOUND; + } + if (number_to_scaled (mp->delx) - mp->tol <= number_to_scaled (stack_max (x_packet (mp->xy))) - number_to_scaled (stack_min (u_packet (mp->uv)))) if (number_to_scaled (mp->delx) + mp->tol >= @@ -15783,7 +15800,8 @@ CONTINUE: if (number_to_scaled (mp->dely) + mp->tol >= number_to_scaled (stack_min (y_packet (mp->xy))) - number_to_scaled (stack_max (v_packet (mp->uv)))) { if (number_to_scaled (mp->cur_t) >= number_to_scaled (mp->max_t)) { - if (number_equal(mp->max_t, two_t)) { /* we've done 17 bisections */ + if (number_equal(mp->max_t, x_two_t)) { /* we've done 17+x bisections */ + number_divide_int(mp->cur_t,1<<3);number_divide_int(mp->cur_tt,1<<3); set_number_from_scaled (mp->cur_t, ((number_to_scaled (mp->cur_t) + 1)/2)); set_number_from_scaled (mp->cur_tt, ((number_to_scaled (mp->cur_tt) + 1)/2)); return; @@ -15798,6 +15816,7 @@ CONTINUE: if (mp->time_to_go > 0) { decr (mp->time_to_go); } else { + number_divide_int(mp->appr_t,1<<3);number_divide_int(mp->appr_tt,1<<3); while (number_less (mp->appr_t, unity_t)) { number_double(mp->appr_t); number_double(mp->appr_tt); diff --git a/Build/source/texk/web2c/mplibdir/mpmathbinary.w b/Build/source/texk/web2c/mplibdir/mpmathbinary.w index c2f8535a05b..a4312c52cb2 100644 --- a/Build/source/texk/web2c/mplibdir/mpmathbinary.w +++ b/Build/source/texk/web2c/mplibdir/mpmathbinary.w @@ -289,7 +289,7 @@ void * mp_initialize_binary_math (MP mp) { mpfr_set_d(math->precision_max.data.num, MAX_PRECISION, ROUNDING); mp_new_number (mp, &math->precision_min, mp_scaled_type); /* really should be |precision_bits_to_digits(MPFR_PREC_MIN)| but that produces a horrible number */ - mpfr_set_d(math->precision_min.data.num, 1.0 , ROUNDING); + mpfr_set_d(math->precision_min.data.num, 2.0 , ROUNDING); /* here are the constants for |scaled| objects */ mp_new_number (mp, &math->epsilon_t, mp_scaled_type); mpfr_set (math->epsilon_t.data.num, epsilon_mpfr_t, ROUNDING); diff --git a/Build/source/texk/web2c/mplibdir/mpmathdecimal.w b/Build/source/texk/web2c/mplibdir/mpmathdecimal.w index 54347cdf795..2ddc216470e 100644 --- a/Build/source/texk/web2c/mplibdir/mpmathdecimal.w +++ b/Build/source/texk/web2c/mplibdir/mpmathdecimal.w @@ -409,7 +409,7 @@ void * mp_initialize_decimal_math (MP mp) { mp_new_number (mp, &math->precision_max, mp_scaled_type); decNumberFromInt32(math->precision_max.data.num, DECNUMDIGITS); mp_new_number (mp, &math->precision_min, mp_scaled_type); - decNumberFromInt32(math->precision_min.data.num, 1); + decNumberFromInt32(math->precision_min.data.num, 2); /* here are the constants for |scaled| objects */ mp_new_number (mp, &math->epsilon_t, mp_scaled_type); decNumberCopy(math->epsilon_t.data.num, &epsilon_decNumber); diff --git a/Build/source/texk/web2c/mplibdir/mpost.w b/Build/source/texk/web2c/mplibdir/mpost.w index 43da635c3fc..0ce57955e88 100644 --- a/Build/source/texk/web2c/mplibdir/mpost.w +++ b/Build/source/texk/web2c/mplibdir/mpost.w @@ -1386,7 +1386,7 @@ main (int argc, char **argv) options->print_found_names = (int)true; { const char *base = cleaned_invocation_name(argv[0]); - if (FILESTRCASEEQ(base, "rmpost")){ + if (FILESTRCASEEQ(base, "rmpost")||FILESTRCASEEQ(base, "r-mpost")){ base++; restricted_mode = true; } @@ -1423,7 +1423,7 @@ main (int argc, char **argv) kpse_set_program_enabled (kpse_mem_format, MAKE_TEX_FMT_BY_DEFAULT, kpse_src_compile); kpse_set_program_name(argv[0], user_progname); - if (FILESTRCASEEQ(kpse_program_name, "rmpost")) + if (FILESTRCASEEQ(kpse_program_name, "rmpost")||FILESTRCASEEQ(kpse_program_name, "r-mpost")) kpse_program_name++; } @= /*@@=nullpass@@*/ @> diff --git a/Build/source/texk/web2c/pmpostdir/pmpost.ch b/Build/source/texk/web2c/pmpostdir/pmpost.ch index abd3c28a04f..c679be58908 100644 --- a/Build/source/texk/web2c/pmpostdir/pmpost.ch +++ b/Build/source/texk/web2c/pmpostdir/pmpost.ch @@ -244,7 +244,7 @@ else @z @x - if (FILESTRCASEEQ(base, "rmpost")){ + if (FILESTRCASEEQ(base, "rmpost")||FILESTRCASEEQ(base, "r-mpost")){ @y if (FILESTRCASEEQ(base, "r"@= @>P_UP@= @>"mpost")){ @z @@ -279,7 +279,7 @@ else @z @x - if (FILESTRCASEEQ(kpse_program_name, "rmpost")) + if (FILESTRCASEEQ(kpse_program_name, "rmpost")||FILESTRCASEEQ(kpse_program_name, "r-mpost")) @y if (FILESTRCASEEQ(kpse_program_name, "r"@= @>P_UP@= @>"mpost")) @z |
