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-rw-r--r--Build/source/texk/web2c/luatexdir/lua/texluajitc.w575
1 files changed, 0 insertions, 575 deletions
diff --git a/Build/source/texk/web2c/luatexdir/lua/texluajitc.w b/Build/source/texk/web2c/luatexdir/lua/texluajitc.w
deleted file mode 100644
index f54f9c8d4a4..00000000000
--- a/Build/source/texk/web2c/luatexdir/lua/texluajitc.w
+++ /dev/null
@@ -1,575 +0,0 @@
-/*
-** LuaJIT frontend. Runs commands, scripts, read-eval-print (REPL) etc.
-** Copyright (C) 2005-2012 Mike Pall. See Copyright Notice in luajit.h
-**
-** Major portions taken verbatim or adapted from the Lua interpreter.
-** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
-*/
-
-@ @c
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define luajit_c
-
-#include "lua.h"
-#include "lauxlib.h"
-#include "lualib.h"
-#include "luajit.h"
-
-#include "lj_arch.h"
-
-#if LJ_TARGET_POSIX
-#include <unistd.h>
-#define lua_stdin_is_tty() isatty(0)
-#elif LJ_TARGET_WINDOWS
-#include <io.h>
-#ifdef __BORLANDC__
-#define lua_stdin_is_tty() isatty(_fileno(stdin))
-#else
-#define lua_stdin_is_tty() _isatty(_fileno(stdin))
-#endif
-#else
-#define lua_stdin_is_tty() 1
-#endif
-
-#if !LJ_TARGET_CONSOLE
-#include <signal.h>
-#endif
-
-#include "lua/luatex-api.h"
-
-static lua_State *globalL = NULL;
-static const char *progname = LUA_PROGNAME;
-
-#if !LJ_TARGET_CONSOLE
-static void lstop(lua_State *L, lua_Debug *ar)
-{
- (void)ar; /* unused arg. */
- lua_sethook(L, NULL, 0, 0);
- /* Avoid luaL_error -- a C hook doesn't add an extra frame. */
- luaL_where(L, 0);
- lua_pushfstring(L, "%sinterrupted!", lua_tostring(L, -1));
- lua_error(L);
-}
-
-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);
-}
-#endif
-
-static void print_usage(void)
-{
- fprintf(stderr,
- "usage: %s [options]... [script [args]...].\n"
- "Available options are:\n"
- " -e chunk Execute string " LUA_QL("chunk") ".\n"
- " -l name Require library " LUA_QL("name") ".\n"
- " -b ... Save or list bytecode.\n"
- " -j cmd Perform LuaJIT control command.\n"
- " -O[opt] Control LuaJIT optimizations.\n"
- " -i Enter interactive mode after executing " LUA_QL("script") ".\n"
- " -v Show version information.\n"
- " -E Ignore environment variables.\n"
- " -- Stop handling options.\n"
- " - Execute stdin and stop handling options.\n"
- ,
- progname);
- fflush(stderr);
-}
-
-static void l_message(const char *pname, const char *msg)
-{
- if (pname) fprintf(stderr, "%s: ", pname);
- fprintf(stderr, "%s\n", msg);
- fflush(stderr);
-}
-
-static int report(lua_State *L, int status)
-{
- if (status && !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);
- }
- return status;
-}
-
-static int traceback(lua_State *L)
-{
- if (!lua_isstring(L, 1)) { /* Non-string error object? Try metamethod. */
- if (lua_isnoneornil(L, 1) ||
- !luaL_callmeta(L, 1, "__tostring") ||
- !lua_isstring(L, -1))
- return 1; /* Return non-string error object. */
- lua_remove(L, 1); /* Replace object by result of __tostring metamethod. */
- }
- luaL_traceback(L, L, lua_tostring(L, 1), 1);
- return 1;
-}
-
-static int docall(lua_State *L, int narg, int clear)
-{
- 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 */
-#if !LJ_TARGET_CONSOLE
- signal(SIGINT, laction);
-#endif
- status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);
-#if !LJ_TARGET_CONSOLE
- signal(SIGINT, SIG_DFL);
-#endif
- lua_remove(L, base); /* remove traceback function */
- /* force a complete garbage collection in case of errors */
- if (status != 0) lua_gc(L, LUA_GCCOLLECT, 0);
- return status;
-}
-
-static void print_version(void)
-{
- fputs(LUAJIT_VERSION " -- " LUAJIT_COPYRIGHT ". " LUAJIT_URL "\n", stdout);
-}
-
-static void print_jit_status(lua_State *L)
-{
- int n;
- const char *s;
- lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
- lua_getfield(L, -1, "jit"); /* Get jit.* module table. */
- lua_remove(L, -2);
- lua_getfield(L, -1, "status");
- lua_remove(L, -2);
- n = lua_gettop(L);
- lua_call(L, 0, LUA_MULTRET);
- fputs(lua_toboolean(L, n) ? "JIT: ON" : "JIT: OFF", stdout);
- for (n++; (s = lua_tostring(L, n)); n++) {
- putc(' ', stdout);
- fputs(s, stdout);
- }
- putc('\n', stdout);
-}
-
-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) || docall(L, 0, 1);
- 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) || docall(L, 0, 1);
- return report(L, status);
-}
-
-static int dolibrary(lua_State *L, const char *name)
-{
- lua_getglobal(L, "require");
- lua_pushstring(L, name);
- return report(L, docall(L, 1, 1));
-}
-
-static void write_prompt(lua_State *L, int firstline)
-{
- const char *p;
- lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");
- p = lua_tostring(L, -1);
- if (p == NULL) p = firstline ? LUA_PROMPT : LUA_PROMPT2;
- fputs(p, stdout);
- fflush(stdout);
- lua_pop(L, 1); /* remove global */
-}
-
-static int incomplete(lua_State *L, int status)
-{
- if (status == LUA_ERRSYNTAX) {
- size_t lmsg;
- const char *msg = lua_tolstring(L, -1, &lmsg);
- const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
- if (strstr(msg, LUA_QL("<eof>")) == tp) {
- lua_pop(L, 1);
- return 1;
- }
- }
- return 0; /* else... */
-}
-
-static int pushline(lua_State *L, int firstline)
-{
- char buf[LUA_MAXINPUT];
- write_prompt(L, firstline);
- if (fgets(buf, LUA_MAXINPUT, stdin)) {
- size_t len = strlen(buf);
- if (len > 0 && buf[len-1] == '\n')
- buf[len-1] = '\0';
- if (firstline && buf[0] == '=')
- lua_pushfstring(L, "return %s", buf+1);
- else
- lua_pushstring(L, buf);
- return 1;
- }
- return 0;
-}
-
-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 */
- status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=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_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 == 0) status = docall(L, 0, 0);
- report(L, status);
- if (status == 0 && lua_gettop(L) > 0) { /* any result to print? */
- lua_getglobal(L, "print");
- lua_insert(L, 1);
- if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)
- l_message(progname,
- lua_pushfstring(L, "error calling " LUA_QL("print") " (%s)",
- lua_tostring(L, -1)));
- }
- }
- lua_settop(L, 0); /* clear stack */
- fputs("\n", stdout);
- fflush(stdout);
- 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 == 0)
- status = docall(L, narg, 0);
- else
- lua_pop(L, narg);
- return report(L, status);
-}
-
-/* Load add-on module. */
-static int loadjitmodule(lua_State *L)
-{
- lua_getglobal(L, "require");
- lua_pushliteral(L, "jit.");
- lua_pushvalue(L, -3);
- lua_concat(L, 2);
- if (lua_pcall(L, 1, 1, 0)) {
- const char *msg = lua_tostring(L, -1);
- if (msg && !strncmp(msg, "module ", 7)) {
- err:
- l_message(progname,
- "unknown luaJIT command or jit.* modules not installed");
- return 1;
- } else {
- return report(L, 1);
- }
- }
- lua_getfield(L, -1, "start");
- if (lua_isnil(L, -1)) goto err;
- lua_remove(L, -2); /* Drop module table. */
- return 0;
-}
-
-/* Run command with options. */
-static int runcmdopt(lua_State *L, const char *opt)
-{
- int narg = 0;
- if (opt && *opt) {
- for (;;) { /* Split arguments. */
- const char *p = strchr(opt, ',');
- narg++;
- if (!p) break;
- if (p == opt)
- lua_pushnil(L);
- else
- lua_pushlstring(L, opt, (size_t)(p - opt));
- opt = p + 1;
- }
- if (*opt)
- lua_pushstring(L, opt);
- else
- lua_pushnil(L);
- }
- return report(L, lua_pcall(L, narg, 0, 0));
-}
-
-/* JIT engine control command: try jit library first or load add-on module. */
-static int dojitcmd(lua_State *L, const char *cmd)
-{
- const char *opt = strchr(cmd, '=');
- lua_pushlstring(L, cmd, opt ? (size_t)(opt - cmd) : strlen(cmd));
- lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
- lua_getfield(L, -1, "jit"); /* Get jit.* module table. */
- lua_remove(L, -2);
- lua_pushvalue(L, -2);
- lua_gettable(L, -2); /* Lookup library function. */
- if (!lua_isfunction(L, -1)) {
- lua_pop(L, 2); /* Drop non-function and jit.* table, keep module name. */
- if (loadjitmodule(L))
- return 1;
- } else {
- lua_remove(L, -2); /* Drop jit.* table. */
- }
- lua_remove(L, -2); /* Drop module name. */
- return runcmdopt(L, opt ? opt+1 : opt);
-}
-
-/* Optimization flags. */
-static int dojitopt(lua_State *L, const char *opt)
-{
- lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
- lua_getfield(L, -1, "jit.opt"); /* Get jit.opt.* module table. */
- lua_remove(L, -2);
- lua_getfield(L, -1, "start");
- lua_remove(L, -2);
- return runcmdopt(L, opt);
-}
-
-/* Save or list bytecode. */
-static int dobytecode(lua_State *L, char **argv)
-{
- int narg = 0;
- lua_pushliteral(L, "bcsave");
- if (loadjitmodule(L))
- return 1;
- if (argv[0][2]) {
- narg++;
- argv[0][1] = '-';
- lua_pushstring(L, argv[0]+1);
- }
- for (argv++; *argv != NULL; narg++, argv++)
- lua_pushstring(L, *argv);
- return report(L, lua_pcall(L, narg, 0, 0));
-}
-
-/* check that argument has no extra characters at the end */
-#define notail(x) {if ((x)[2] != '\0') return -1;}
-
-#define FLAGS_INTERACTIVE 1
-#define FLAGS_VERSION 2
-#define FLAGS_EXEC 4
-#define FLAGS_OPTION 8
-#define FLAGS_NOENV 16
-
-static int collectargs(char **argv, int *flags)
-{
- int i;
- for (i = 1; argv[i] != NULL; i++) {
- if (argv[i][0] != '-') /* Not an option? */
- return i;
- switch (argv[i][1]) { /* Check option. */
- case '-':
- notail(argv[i]);
- return (argv[i+1] != NULL ? i+1 : 0);
- case '\0':
- return i;
- case 'i':
- notail(argv[i]);
- *flags |= FLAGS_INTERACTIVE;
- /* fallthrough */
- case 'v':
- notail(argv[i]);
- *flags |= FLAGS_VERSION;
- break;
- case 'e':
- *flags |= FLAGS_EXEC;
- case 'j': /* LuaJIT extension */
- case 'l':
- *flags |= FLAGS_OPTION;
- if (argv[i][2] == '\0') {
- i++;
- if (argv[i] == NULL) return -1;
- }
- break;
- case 'O': break; /* LuaJIT extension */
- case 'b': /* LuaJIT extension */
- if (*flags) return -1;
- *flags |= FLAGS_EXEC;
- return 0;
- case 'E':
- *flags |= FLAGS_NOENV;
- break;
- default: return -1; /* invalid option */
- }
- }
- return 0;
-}
-
-static int runargs(lua_State *L, char **argv, int n)
-{
- int i;
- for (i = 1; i < n; i++) {
- if (argv[i] == NULL) continue;
- 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)") != 0)
- return 1;
- break;
- }
- case 'l': {
- const char *filename = argv[i] + 2;
- if (*filename == '\0') filename = argv[++i];
- lua_assert(filename != NULL);
- if (dolibrary(L, filename))
- return 1; /* stop if file fails */
- break;
- }
- case 'j': { /* LuaJIT extension */
- const char *cmd = argv[i] + 2;
- if (*cmd == '\0') cmd = argv[++i];
- lua_assert(cmd != NULL);
- if (dojitcmd(L, cmd))
- return 1;
- break;
- }
- case 'O': /* LuaJIT extension */
- if (dojitopt(L, argv[i] + 2))
- return 1;
- break;
- case 'b': /* LuaJIT extension */
- return dobytecode(L, argv+i);
- default: break;
- }
- }
- return 0;
-}
-
-static int handle_luainit(lua_State *L)
-{
-#if LJ_TARGET_CONSOLE
- const char *init = NULL;
-#else
- const char *init = getenv(LUA_INIT);
-#endif
- if (init == NULL)
- return 0; /* status OK */
- else if (init[0] == 64)
- return dofile(L, init+1);
- else
- return dostring(L, init, "=" LUA_INIT);
-}
-
-struct Smain {
- char **argv;
- int argc;
- int status;
-};
-
-static int pmain(lua_State *L)
-{
- struct Smain *s = (struct Smain *)lua_touserdata(L, 1);
- char **argv = s->argv;
- int script;
- int flags = 0;
- globalL = L;
- if (argv[0] && argv[0][0]) progname = argv[0];
- LUAJIT_VERSION_SYM(); /* linker-enforced version check */
- script = collectargs(argv, &flags);
- if (script < 0) { /* invalid args? */
- print_usage();
- s->status = 1;
- return 0;
- }
- if ((flags & FLAGS_NOENV)) {
- lua_pushboolean(L, 1);
- lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
- }
- lua_gc(L, LUA_GCSTOP, 0); /* stop collector during initialization */
- luaL_openlibs(L); /* open libraries */
- lua_gc(L, LUA_GCRESTART, -1);
- if (!(flags & FLAGS_NOENV)) {
- s->status = handle_luainit(L);
- if (s->status != 0) return 0;
- }
- if ((flags & FLAGS_VERSION)) print_version();
- s->status = runargs(L, argv, (script > 0) ? script : s->argc);
- if (s->status != 0) return 0;
- if (script) {
- s->status = handle_script(L, argv, script);
- if (s->status != 0) return 0;
- }
- if ((flags & FLAGS_INTERACTIVE)) {
- print_jit_status(L);
- dotty(L);
- } else if (script == 0 && !(flags & (FLAGS_EXEC|FLAGS_VERSION))) {
- if (lua_stdin_is_tty()) {
- print_version();
- print_jit_status(L);
- dotty(L);
- } else {
- dofile(L, NULL); /* executes stdin as a file */
- }
- }
- return 0;
-}
-
-int luac_main(int argc, char **argv)
-{
- int status;
- struct Smain s;
- lua_State *L = lua_open(); /* create state */
- if (L == NULL) {
- l_message(argv[0], "cannot create state: not enough memory");
- return EXIT_FAILURE;
- }
- s.argc = argc;
- s.argv = argv;
- status = lua_cpcall(L, pmain, &s);
- report(L, status);
- lua_close(L);
- return (status || s.status) ? EXIT_FAILURE : EXIT_SUCCESS;
-}
-