diff options
| author | Peter Breitenlohner <peb@mppmu.mpg.de> | 2013-03-13 09:12:00 +0000 |
|---|---|---|
| committer | Peter Breitenlohner <peb@mppmu.mpg.de> | 2013-03-13 09:12:00 +0000 |
| commit | 1a7786896676cbcb52e977d4e874e5cc17edfdaf (patch) | |
| tree | 491b842e7068b366b259ad107b08305208030098 /Build/source/texk | |
| parent | 9d04ce36142d98e5ed18507eeff52977885bc31b (diff) | |
prepare for luaTeX 0.75.0: Add luatexdir/lua52/
git-svn-id: svn://tug.org/texlive/trunk@29366 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk')
67 files changed, 21237 insertions, 116 deletions
diff --git a/Build/source/texk/web2c/ChangeLog b/Build/source/texk/web2c/ChangeLog index afcb409d4ec..ce7648c06f6 100644 --- a/Build/source/texk/web2c/ChangeLog +++ b/Build/source/texk/web2c/ChangeLog @@ -1,3 +1,8 @@ +2013-03-12 Peter Breitenlohner <peb@mppmu.mpg.de> + + * Makefile.am: Add luatexdir/am/liblua52.am for LuaTeX 0.75.0. + * configure.ac: New conditional USE_DLOPEN. + 2013-03-11 Karl Berry <karl@tug.org> * doc/web2c.texi (Initial TeX, Initial Metafont): initex diff --git a/Build/source/texk/web2c/Makefile.am b/Build/source/texk/web2c/Makefile.am index b883b576db0..beeb38abfab 100644 --- a/Build/source/texk/web2c/Makefile.am +++ b/Build/source/texk/web2c/Makefile.am @@ -1,6 +1,6 @@ ## Makefile.am for the TeX Live subdirectory texk/web2c/ ## -## Copyright (C) 2009-2012 Peter Breitenlohner <tex-live@tug.org> +## Copyright (C) 2009-2013 Peter Breitenlohner <tex-live@tug.org> ## You may freely use, modify and/or distribute this file. ## ACLOCAL_AMFLAGS = -I ../../m4 -I m4 @@ -204,6 +204,7 @@ include $(srcdir)/pdftexdir/am/pdftosrc.am ## luaTeX include $(srcdir)/luatexdir/am/luatex.am include $(srcdir)/luatexdir/am/liblua51.am +include $(srcdir)/luatexdir/am/liblua52.am include $(srcdir)/luatexdir/am/luasocket.am include $(srcdir)/luatexdir/am/luamisc.am include $(srcdir)/luatexdir/am/luafontforge.am diff --git a/Build/source/texk/web2c/Makefile.in b/Build/source/texk/web2c/Makefile.in index 08b734af8dd..154e74e4eb3 100644 --- a/Build/source/texk/web2c/Makefile.in +++ b/Build/source/texk/web2c/Makefile.in @@ -76,8 +76,8 @@ TESTS = tangle.test $(am__EXEEXT_41) ctiedir/ctie.test \ $(am__append_14) $(am__append_23) $(am__append_28) \ $(am__append_34) $(am__append_38) $(am__append_40) \ $(am__append_46) $(am__append_50) $(am__append_52) \ - $(am__append_57) $(am__append_64) $(am__append_74) \ - $(am__append_77) $(am__append_78) $(am__append_81) \ + $(am__append_57) $(am__append_64) $(am__append_76) \ + $(am__append_79) $(am__append_80) $(am__append_83) \ libmd5/md5.test DIST_COMMON = $(srcdir)/am/bootstrap.am $(srcdir)/am/web.am \ $(srcdir)/am/cweb.am $(srcdir)/am/texmf.am \ @@ -92,6 +92,7 @@ DIST_COMMON = $(srcdir)/am/bootstrap.am $(srcdir)/am/web.am \ $(srcdir)/pdftexdir/am/pdftosrc.am \ $(srcdir)/luatexdir/am/luatex.am \ $(srcdir)/luatexdir/am/liblua51.am \ + $(srcdir)/luatexdir/am/liblua52.am \ $(srcdir)/luatexdir/am/luasocket.am \ $(srcdir)/luatexdir/am/luamisc.am \ $(srcdir)/luatexdir/am/luafontforge.am \ @@ -188,21 +189,23 @@ DIST_COMMON = $(srcdir)/am/bootstrap.am $(srcdir)/am/web.am \ @LUATEX_TRUE@@WIN32_FALSE@am__append_63 = luatex$(EXEEXT):texlua luatex$(EXEEXT):texluac @LUATEX_TRUE@am__append_64 = $(luatex_tests) @MINGW32_FALSE@am__append_65 = -DLUA_USE_POSIX -@LUATEX_TRUE@@cross_FALSE@am__append_66 = txt2zlib -@XETEX_TRUE@am__append_67 = xetex -@XETEX_MACOSX_TRUE@am__append_68 = -DXETEX_MAC -@XETEX_MACOSX_FALSE@am__append_69 = -DXETEX_OTHER $(POPPLER_INCLUDES) \ +@WIN32_FALSE@am__append_66 = -DLUA_USE_POSIX +@USE_DLOPEN_TRUE@@WIN32_FALSE@am__append_67 = -DLUA_USE_DLOPEN +@LUATEX_TRUE@@cross_FALSE@am__append_68 = txt2zlib +@XETEX_TRUE@am__append_69 = xetex +@XETEX_MACOSX_TRUE@am__append_70 = -DXETEX_MAC +@XETEX_MACOSX_FALSE@am__append_71 = -DXETEX_OTHER $(POPPLER_INCLUDES) \ @XETEX_MACOSX_FALSE@ $(LIBPNG_INCLUDES) $(FONTCONFIG_INCLUDES) -@XETEX_MACOSX_FALSE@am__append_70 = $(POPPLER_LIBS) $(LIBPNG_LIBS) $(FONTCONFIG_LIBS) -@XETEX_MACOSX_FALSE@am__append_71 = $(POPPLER_DEPEND) $(LIBPNG_DEPEND) -@XETEX_MACOSX_TRUE@am__append_72 = \ +@XETEX_MACOSX_FALSE@am__append_72 = $(POPPLER_LIBS) $(LIBPNG_LIBS) $(FONTCONFIG_LIBS) +@XETEX_MACOSX_FALSE@am__append_73 = $(POPPLER_DEPEND) $(LIBPNG_DEPEND) +@XETEX_MACOSX_TRUE@am__append_74 = \ @XETEX_MACOSX_TRUE@ xetexdir/XeTeXFontInst_Mac.cpp \ @XETEX_MACOSX_TRUE@ xetexdir/XeTeXFontInst_Mac.h \ @XETEX_MACOSX_TRUE@ xetexdir/XeTeXFontMgr_Mac.mm \ @XETEX_MACOSX_TRUE@ xetexdir/XeTeXFontMgr_Mac.h \ @XETEX_MACOSX_TRUE@ xetexdir/XeTeX_mac.c -@XETEX_MACOSX_FALSE@am__append_73 = \ +@XETEX_MACOSX_FALSE@am__append_75 = \ @XETEX_MACOSX_FALSE@ xetexdir/XeTeXFontMgr_FC.cpp \ @XETEX_MACOSX_FALSE@ xetexdir/XeTeXFontMgr_FC.h \ @XETEX_MACOSX_FALSE@ xetexdir/XeTeX_pic.c \ @@ -215,93 +218,93 @@ DIST_COMMON = $(srcdir)/am/bootstrap.am $(srcdir)/am/web.am \ @XETEX_MACOSX_FALSE@ xetexdir/pngimage.c \ @XETEX_MACOSX_FALSE@ xetexdir/pngimage.h -@XETEX_TRUE@am__append_74 = $(xetex_tests) -@OTANGLE_TRUE@am__append_75 = $(omegaware_tools) -@OMFONTS_FALSE@@OTANGLE_TRUE@am__append_76 = $(omegaware_font_tools) -@OTANGLE_TRUE@am__append_77 = $(OTANGLE_tests) -@OMFONTS_FALSE@@OTANGLE_TRUE@am__append_78 = $(OMFONTS_tests) -@OTANGLE_TRUE@am__append_79 = pltotf tftopl -@ALEPH_TRUE@am__append_80 = aleph -@ALEPH_TRUE@am__append_81 = $(aleph_tests) -@TEX_SYNCTEX_TRUE@am__append_82 = -I$(srcdir)/synctexdir \ +@XETEX_TRUE@am__append_76 = $(xetex_tests) +@OTANGLE_TRUE@am__append_77 = $(omegaware_tools) +@OMFONTS_FALSE@@OTANGLE_TRUE@am__append_78 = $(omegaware_font_tools) +@OTANGLE_TRUE@am__append_79 = $(OTANGLE_tests) +@OMFONTS_FALSE@@OTANGLE_TRUE@am__append_80 = $(OMFONTS_tests) +@OTANGLE_TRUE@am__append_81 = pltotf tftopl +@ALEPH_TRUE@am__append_82 = aleph +@ALEPH_TRUE@am__append_83 = $(aleph_tests) +@TEX_SYNCTEX_TRUE@am__append_84 = -I$(srcdir)/synctexdir \ @TEX_SYNCTEX_TRUE@ $(ZLIB_INCLUDES) -D__SyncTeX__ \ @TEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-tex.h\" -@TEX_SYNCTEX_TRUE@am__append_83 = $(ZLIB_LIBS) -@TEX_SYNCTEX_TRUE@am__append_84 = $(ZLIB_DEPEND) -@TEX_SYNCTEX_TRUE@am__append_85 = \ +@TEX_SYNCTEX_TRUE@am__append_85 = $(ZLIB_LIBS) +@TEX_SYNCTEX_TRUE@am__append_86 = $(ZLIB_DEPEND) +@TEX_SYNCTEX_TRUE@am__append_87 = \ @TEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @TEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @TEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @TEX_SYNCTEX_TRUE@ synctexdir/synctex-tex.h -@ETEX_SYNCTEX_TRUE@am__append_86 = -I$(srcdir)/synctexdir \ +@ETEX_SYNCTEX_TRUE@am__append_88 = -I$(srcdir)/synctexdir \ @ETEX_SYNCTEX_TRUE@ $(ZLIB_INCLUDES) -D__SyncTeX__ \ @ETEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-etex.h\" -@ETEX_SYNCTEX_TRUE@am__append_87 = $(ZLIB_LIBS) -@ETEX_SYNCTEX_TRUE@am__append_88 = $(ZLIB_DEPEND) -@ETEX_SYNCTEX_TRUE@am__append_89 = \ +@ETEX_SYNCTEX_TRUE@am__append_89 = $(ZLIB_LIBS) +@ETEX_SYNCTEX_TRUE@am__append_90 = $(ZLIB_DEPEND) +@ETEX_SYNCTEX_TRUE@am__append_91 = \ @ETEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @ETEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @ETEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @ETEX_SYNCTEX_TRUE@ synctexdir/synctex-etex.h -@PTEX_SYNCTEX_TRUE@am__append_90 = -I$(srcdir)/synctexdir \ +@PTEX_SYNCTEX_TRUE@am__append_92 = -I$(srcdir)/synctexdir \ @PTEX_SYNCTEX_TRUE@ $(ZLIB_INCLUDES) -D__SyncTeX__ \ @PTEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-ptex.h\" -@PTEX_SYNCTEX_TRUE@am__append_91 = $(ZLIB_LIBS) -@PTEX_SYNCTEX_TRUE@am__append_92 = $(ZLIB_DEPEND) -@PTEX_SYNCTEX_TRUE@am__append_93 = \ +@PTEX_SYNCTEX_TRUE@am__append_93 = $(ZLIB_LIBS) +@PTEX_SYNCTEX_TRUE@am__append_94 = $(ZLIB_DEPEND) +@PTEX_SYNCTEX_TRUE@am__append_95 = \ @PTEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @PTEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @PTEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @PTEX_SYNCTEX_TRUE@ synctexdir/synctex-ptex.h -@UPTEX_SYNCTEX_TRUE@am__append_94 = -I$(srcdir)/synctexdir \ +@UPTEX_SYNCTEX_TRUE@am__append_96 = -I$(srcdir)/synctexdir \ @UPTEX_SYNCTEX_TRUE@ $(ZLIB_INCLUDES) -D__SyncTeX__ \ @UPTEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-uptex.h\" -@UPTEX_SYNCTEX_TRUE@am__append_95 = $(ZLIB_LIBS) -@UPTEX_SYNCTEX_TRUE@am__append_96 = $(ZLIB_DEPEND) -@UPTEX_SYNCTEX_TRUE@am__append_97 = \ +@UPTEX_SYNCTEX_TRUE@am__append_97 = $(ZLIB_LIBS) +@UPTEX_SYNCTEX_TRUE@am__append_98 = $(ZLIB_DEPEND) +@UPTEX_SYNCTEX_TRUE@am__append_99 = \ @UPTEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @UPTEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @UPTEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @UPTEX_SYNCTEX_TRUE@ synctexdir/synctex-uptex.h -@EPTEX_SYNCTEX_TRUE@am__append_98 = -I$(srcdir)/synctexdir \ +@EPTEX_SYNCTEX_TRUE@am__append_100 = -I$(srcdir)/synctexdir \ @EPTEX_SYNCTEX_TRUE@ $(ZLIB_INCLUDES) -D__SyncTeX__ \ @EPTEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-eptex.h\" -@EPTEX_SYNCTEX_TRUE@am__append_99 = $(ZLIB_LIBS) -@EPTEX_SYNCTEX_TRUE@am__append_100 = $(ZLIB_DEPEND) -@EPTEX_SYNCTEX_TRUE@am__append_101 = \ +@EPTEX_SYNCTEX_TRUE@am__append_101 = $(ZLIB_LIBS) +@EPTEX_SYNCTEX_TRUE@am__append_102 = $(ZLIB_DEPEND) +@EPTEX_SYNCTEX_TRUE@am__append_103 = \ @EPTEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @EPTEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @EPTEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @EPTEX_SYNCTEX_TRUE@ synctexdir/synctex-eptex.h -@EUPTEX_SYNCTEX_TRUE@am__append_102 = -I$(srcdir)/synctexdir \ +@EUPTEX_SYNCTEX_TRUE@am__append_104 = -I$(srcdir)/synctexdir \ @EUPTEX_SYNCTEX_TRUE@ $(ZLIB_INCLUDES) -D__SyncTeX__ \ @EUPTEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-euptex.h\" -@EUPTEX_SYNCTEX_TRUE@am__append_103 = $(ZLIB_LIBS) -@EUPTEX_SYNCTEX_TRUE@am__append_104 = $(ZLIB_DEPEND) -@EUPTEX_SYNCTEX_TRUE@am__append_105 = \ +@EUPTEX_SYNCTEX_TRUE@am__append_105 = $(ZLIB_LIBS) +@EUPTEX_SYNCTEX_TRUE@am__append_106 = $(ZLIB_DEPEND) +@EUPTEX_SYNCTEX_TRUE@am__append_107 = \ @EUPTEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @EUPTEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @EUPTEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @EUPTEX_SYNCTEX_TRUE@ synctexdir/synctex-euptex.h -@PDFTEX_SYNCTEX_TRUE@am__append_106 = -I$(srcdir)/synctexdir \ +@PDFTEX_SYNCTEX_TRUE@am__append_108 = -I$(srcdir)/synctexdir \ @PDFTEX_SYNCTEX_TRUE@ -D__SyncTeX__ \ @PDFTEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-pdftex.h\" -@PDFTEX_SYNCTEX_TRUE@am__append_107 = \ +@PDFTEX_SYNCTEX_TRUE@am__append_109 = \ @PDFTEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @PDFTEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @PDFTEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @PDFTEX_SYNCTEX_TRUE@ synctexdir/synctex-pdftex.h -@XETEX_SYNCTEX_TRUE@am__append_108 = -I$(srcdir)/synctexdir \ +@XETEX_SYNCTEX_TRUE@am__append_110 = -I$(srcdir)/synctexdir \ @XETEX_SYNCTEX_TRUE@ -D__SyncTeX__ \ @XETEX_SYNCTEX_TRUE@ -DSYNCTEX_ENGINE_H=\"synctex-xetex.h\" -@XETEX_SYNCTEX_TRUE@am__append_109 = \ +@XETEX_SYNCTEX_TRUE@am__append_111 = \ @XETEX_SYNCTEX_TRUE@ synctexdir/synctex.c \ @XETEX_SYNCTEX_TRUE@ synctexdir/synctex.h \ @XETEX_SYNCTEX_TRUE@ synctexdir/synctex-common.h \ @@ -452,6 +455,41 @@ am_liblua51_a_OBJECTS = luatexdir/lua51/liblua51_a-lapi.$(OBJEXT) \ luatexdir/lua51/liblua51_a-lvm.$(OBJEXT) \ luatexdir/lua51/liblua51_a-lzio.$(OBJEXT) liblua51_a_OBJECTS = $(am_liblua51_a_OBJECTS) +liblua52_a_AR = $(AR) $(ARFLAGS) +liblua52_a_LIBADD = +am_liblua52_a_OBJECTS = luatexdir/lua52/liblua52_a-lapi.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lauxlib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lbaselib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lbitlib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lcode.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lcorolib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lctype.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ldblib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ldebug.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ldo.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ldump.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lfunc.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lgc.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-linit.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-liolib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-llex.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lmathlib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lmem.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-loadlib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lobject.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lopcodes.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-loslib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lparser.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lstate.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lstring.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lstrlib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ltable.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ltablib.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-ltm.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lundump.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lvm.$(OBJEXT) \ + luatexdir/lua52/liblua52_a-lzio.$(OBJEXT) +liblua52_a_OBJECTS = $(am_liblua52_a_OBJECTS) libluamisc_a_AR = $(AR) $(ARFLAGS) libluamisc_a_LIBADD = am_libluamisc_a_OBJECTS = \ @@ -1126,27 +1164,27 @@ am__v_OBJCXXLD_ = $(am__v_OBJCXXLD_@AM_DEFAULT_V@) am__v_OBJCXXLD_0 = @echo " OBJCXXLD" $@; am__v_OBJCXXLD_1 = SOURCES = $(libff_a_SOURCES) $(libkanji_a_SOURCES) \ - $(liblua51_a_SOURCES) $(libluamisc_a_SOURCES) \ - $(EXTRA_libluamisc_a_SOURCES) $(libluasocket_a_SOURCES) \ - $(libluatex_a_SOURCES) $(nodist_libluatex_a_SOURCES) \ - $(libmd5_a_SOURCES) $(nodist_libmf_a_SOURCES) \ - $(libmplib_a_SOURCES) $(nodist_libmplib_a_SOURCES) \ - $(libpdftex_a_SOURCES) $(EXTRA_libpdftex_a_SOURCES) \ - $(libukanji_a_SOURCES) $(libxetex_a_SOURCES) \ - $(dist_aleph_SOURCES) $(nodist_aleph_SOURCES) \ - $(nodist_bibtex_SOURCES) $(nodist_call_luatex_SOURCES) \ - $(nodist_call_mpost_SOURCES) $(nodist_ctangle_SOURCES) \ - $(nodist_ctangleboot_SOURCES) $(nodist_ctie_SOURCES) \ - $(nodist_cweave_SOURCES) $(nodist_dvicopy_SOURCES) \ - $(nodist_dvitype_SOURCES) $(dist_eptex_SOURCES) \ - $(nodist_eptex_SOURCES) $(dist_etex_SOURCES) \ - $(nodist_etex_SOURCES) $(dist_euptex_SOURCES) \ - $(nodist_euptex_SOURCES) $(gftodvi_SOURCES) \ - $(nodist_gftodvi_SOURCES) $(nodist_gftopk_SOURCES) \ - $(nodist_gftype_SOURCES) $(nodist_inimf_SOURCES) \ - $(nodist_initex_SOURCES) $(luatex_SOURCES) \ - $(nodist_EXTRA_luatex_SOURCES) $(md5main_SOURCES) \ - $(dist_mf_SOURCES) $(dist_mf_nowin_SOURCES) \ + $(liblua51_a_SOURCES) $(liblua52_a_SOURCES) \ + $(libluamisc_a_SOURCES) $(EXTRA_libluamisc_a_SOURCES) \ + $(libluasocket_a_SOURCES) $(libluatex_a_SOURCES) \ + $(nodist_libluatex_a_SOURCES) $(libmd5_a_SOURCES) \ + $(nodist_libmf_a_SOURCES) $(libmplib_a_SOURCES) \ + $(nodist_libmplib_a_SOURCES) $(libpdftex_a_SOURCES) \ + $(EXTRA_libpdftex_a_SOURCES) $(libukanji_a_SOURCES) \ + $(libxetex_a_SOURCES) $(dist_aleph_SOURCES) \ + $(nodist_aleph_SOURCES) $(nodist_bibtex_SOURCES) \ + $(nodist_call_luatex_SOURCES) $(nodist_call_mpost_SOURCES) \ + $(nodist_ctangle_SOURCES) $(nodist_ctangleboot_SOURCES) \ + $(nodist_ctie_SOURCES) $(nodist_cweave_SOURCES) \ + $(nodist_dvicopy_SOURCES) $(nodist_dvitype_SOURCES) \ + $(dist_eptex_SOURCES) $(nodist_eptex_SOURCES) \ + $(dist_etex_SOURCES) $(nodist_etex_SOURCES) \ + $(dist_euptex_SOURCES) $(nodist_euptex_SOURCES) \ + $(gftodvi_SOURCES) $(nodist_gftodvi_SOURCES) \ + $(nodist_gftopk_SOURCES) $(nodist_gftype_SOURCES) \ + $(nodist_inimf_SOURCES) $(nodist_initex_SOURCES) \ + $(luatex_SOURCES) $(nodist_EXTRA_luatex_SOURCES) \ + $(md5main_SOURCES) $(dist_mf_SOURCES) $(dist_mf_nowin_SOURCES) \ $(nodist_mft_SOURCES) $(nodist_mpost_SOURCES) \ $(nodist_odvicopy_SOURCES) $(nodist_odvitype_SOURCES) \ $(nodist_ofm2opl_SOURCES) $(nodist_opl2ofm_SOURCES) \ @@ -1176,16 +1214,16 @@ SOURCES = $(libff_a_SOURCES) $(libkanji_a_SOURCES) \ $(nodist_wovp2ovf_SOURCES) $(dist_xetex_SOURCES) \ $(nodist_xetex_SOURCES) $(nodist_EXTRA_xetex_SOURCES) DIST_SOURCES = $(libff_a_SOURCES) $(libkanji_a_SOURCES) \ - $(liblua51_a_SOURCES) $(libluamisc_a_SOURCES) \ - $(EXTRA_libluamisc_a_SOURCES) $(libluasocket_a_SOURCES) \ - $(libluatex_a_SOURCES) $(libmd5_a_SOURCES) \ - $(libmplib_a_SOURCES) $(am__libpdftex_a_SOURCES_DIST) \ - $(EXTRA_libpdftex_a_SOURCES) $(libukanji_a_SOURCES) \ - $(am__libxetex_a_SOURCES_DIST) $(dist_aleph_SOURCES) \ - $(am__dist_eptex_SOURCES_DIST) $(am__dist_etex_SOURCES_DIST) \ - $(am__dist_euptex_SOURCES_DIST) $(gftodvi_SOURCES) \ - $(luatex_SOURCES) $(md5main_SOURCES) $(dist_mf_SOURCES) \ - $(dist_mf_nowin_SOURCES) $(pbibtex_SOURCES) \ + $(liblua51_a_SOURCES) $(liblua52_a_SOURCES) \ + $(libluamisc_a_SOURCES) $(EXTRA_libluamisc_a_SOURCES) \ + $(libluasocket_a_SOURCES) $(libluatex_a_SOURCES) \ + $(libmd5_a_SOURCES) $(libmplib_a_SOURCES) \ + $(am__libpdftex_a_SOURCES_DIST) $(EXTRA_libpdftex_a_SOURCES) \ + $(libukanji_a_SOURCES) $(am__libxetex_a_SOURCES_DIST) \ + $(dist_aleph_SOURCES) $(am__dist_eptex_SOURCES_DIST) \ + $(am__dist_etex_SOURCES_DIST) $(am__dist_euptex_SOURCES_DIST) \ + $(gftodvi_SOURCES) $(luatex_SOURCES) $(md5main_SOURCES) \ + $(dist_mf_SOURCES) $(dist_mf_nowin_SOURCES) $(pbibtex_SOURCES) \ $(am__dist_pdftex_SOURCES_DIST) $(pdftosrc_SOURCES) \ $(pdvitype_SOURCES) $(ppltotf_SOURCES) \ $(am__dist_ptex_SOURCES_DIST) $(ptftopl_SOURCES) \ @@ -1705,8 +1743,8 @@ proglib = lib/lib.a dist_man_MANS = synctexdir/man1/synctex.1 synctexdir/man5/synctex.5 nodist_man_MANS = EXTRA_LIBRARIES = libmf.a libmplib.a libkanji.a libukanji.a \ - libpdftex.a liblua51.a libluasocket.a libluamisc.a libff.a \ - libluatex.a libxetex.a libmd5.a + libpdftex.a liblua51.a liblua52.a libluasocket.a libluamisc.a \ + libff.a libluatex.a libxetex.a libmd5.a EXTRA_DIST = PROJECTS cftests cpascal.h help.h w2c/config.h \ triptrap-sh tangle.web tangle.ch tangleboot.pin cwebdir \ ctangleboot.cin cwebboot.cin cwebboot.hin tangle.test \ @@ -1798,6 +1836,8 @@ EXTRA_DIST = PROJECTS cftests cpascal.h help.h w2c/config.h \ $(luatex_tests) luatexdir/lua51/Makefile \ luatexdir/lua51/liolib.c luatexdir/lua51/lua.c \ luatexdir/lua51/luac.c luatexdir/lua51/print.c \ + luatexdir/lua52/Makefile luatexdir/lua52/lua.hpp \ + luatexdir/lua52/lua.c luatexdir/lua52/luac.c \ luatexdir/luasocket/src/socket_lua.c \ luatexdir/luasocket/src/ftp_lua.c \ luatexdir/luasocket/src/http_lua.c \ @@ -2114,18 +2154,18 @@ tie_CPPFLAGS = $(AM_CPPFLAGS) -DNOT_WEB2C initex_CPPFLAGS = -DEXEPROG=\"tex.exe\" nodist_initex_SOURCES = callexe.c initex_LDADD = -tex_CPPFLAGS = $(AM_CPPFLAGS) $(am__append_82) +tex_CPPFLAGS = $(AM_CPPFLAGS) $(am__append_84) # With --enable-ipc, TeX may need to link with -lsocket. -tex_LDADD = $(LDADD) $(ipc_socketlibs) $(am__append_83) +tex_LDADD = $(LDADD) $(ipc_socketlibs) $(am__append_85) # TeX C sources tex_c_h = texini.c tex0.c texcoerce.h texd.h nodist_tex_SOURCES = $(tex_c_h) tex-pool.c -dist_tex_SOURCES = texextra.c $(am__append_85) +dist_tex_SOURCES = texextra.c $(am__append_87) # We must create texd.h before building the tex_OBJECTS. -tex_prereq = texd.h $(am__append_84) +tex_prereq = texd.h $(am__append_86) tex_ch_srcs = \ tex.web \ tex.ch \ @@ -2193,19 +2233,19 @@ psout_c_h = mppsout.h psout.c mplibps.h svgout_c_h = mplibsvg.h mpsvgout.h svgout.c libmplib_web = mplibdir/mp.w mplibdir/psout.w mplibdir/svgout.w \ mplibdir/mpmath.w mplibdir/tfmin.w -etex_CPPFLAGS = $(AM_CPPFLAGS) $(am__append_86) +etex_CPPFLAGS = $(AM_CPPFLAGS) $(am__append_88) # With --enable-ipc, e-TeX may need to link with -lsocket. -etex_LDADD = $(LDADD) $(ipc_socketlibs) $(am__append_87) +etex_LDADD = $(LDADD) $(ipc_socketlibs) $(am__append_89) # e-TeX C sources etex_c_h = etexini.c etex0.c etexcoerce.h etexd.h nodist_etex_SOURCES = $(etex_c_h) etex-pool.c dist_etex_SOURCES = etexdir/etexextra.c etexdir/etexextra.h \ - etexdir/etex_version.h $(am__append_89) + etexdir/etex_version.h $(am__append_91) # We must create etexd.h and etexdir/etex_version.h before building the etex_OBJECTS. -etex_prereq = etexd.h etexdir/etex_version.h $(am__append_88) +etex_prereq = etexd.h etexdir/etex_version.h $(am__append_90) etex_web_srcs = \ tex.web \ etexdir/etex.ch @@ -2240,20 +2280,20 @@ pweb_tests = ptexdir/pbibtex.test ptexdir/pdvitype.test \ pproglib = lib/libp.a libkanji_a_SOURCES = ptexdir/kanji.c ptexdir/kanji.h libkanji_a_CPPFLAGS = $(ptex_cppflags) -ptex_CPPFLAGS = $(ptex_cppflags) $(am__append_90) +ptex_CPPFLAGS = $(ptex_cppflags) $(am__append_92) # With --enable-ipc, pTeX may need to link with -lsocket. -ptex_LDADD = $(ptex_ldadd) $(ipc_socketlibs) $(am__append_91) +ptex_LDADD = $(ptex_ldadd) $(ipc_socketlibs) $(am__append_93) ptex_DEPENDENCIES = $(ptex_dependencies) # pTeX C sources ptex_c_h = ptexini.c ptex0.c ptexcoerce.h ptexd.h nodist_ptex_SOURCES = $(ptex_c_h) ptex-pool.c dist_ptex_SOURCES = ptexdir/ptexextra.c ptexdir/ptexextra.h \ - ptexdir/ptex_version.h $(am__append_93) + ptexdir/ptex_version.h $(am__append_95) # We must create ptexd.h and ptexdir/ptex_version.h before building the ptex_OBJECTS. -ptex_prereq = ptexd.h ptexdir/ptex_version.h $(am__append_92) +ptex_prereq = ptexd.h ptexdir/ptex_version.h $(am__append_94) ptex_web_srcs = \ tex.web \ tex.ch @@ -2287,22 +2327,22 @@ ptftopl_DEPENDENCIES = $(ptex_dependencies) # e-pTeX Tests # eptex_tests = eptexdir/eptrip.test -eptex_CPPFLAGS = $(PTEXENC_INCLUDES) $(AM_CPPFLAGS) $(am__append_98) +eptex_CPPFLAGS = $(PTEXENC_INCLUDES) $(AM_CPPFLAGS) $(am__append_100) # With --enable-ipc, e-pTeX may need to link with -lsocket. eptex_LDADD = libkanji.a $(pproglib) $(PTEXENC_LIBS) $(LDADD) \ - $(ipc_socketlibs) $(am__append_99) + $(ipc_socketlibs) $(am__append_101) eptex_DEPENDENCIES = libkanji.a $(pproglib) $(PTEXENC_DEPEND) $(default_dependencies) # e-pTeX C sources eptex_c_h = eptexini.c eptex0.c eptexcoerce.h eptexd.h nodist_eptex_SOURCES = $(eptex_c_h) eptex-pool.c dist_eptex_SOURCES = eptexdir/eptexextra.c eptexdir/eptexextra.h \ - eptexdir/eptex_version.h $(am__append_101) + eptexdir/eptex_version.h $(am__append_103) # We must create eptexd.h and eptexdir/eptex_version.h before building the eptex_OBJECTS. eptex_prereq = eptexd.h etexdir/etex_version.h ptexdir/ptex_version.h \ - eptexdir/eptex_version.h $(am__append_100) + eptexdir/eptex_version.h $(am__append_102) eptex_web_srcs = \ tex.web \ etexdir/etex.ch \ @@ -2338,21 +2378,21 @@ upweb_tests = \ libukanji_a_SOURCES = uptexdir/kanji.c uptexdir/kanji.h uptexdir/kanji_dump.c libukanji_a_CPPFLAGS = $(uptex_cppflags) -uptex_CPPFLAGS = $(uptex_cppflags) $(am__append_94) +uptex_CPPFLAGS = $(uptex_cppflags) $(am__append_96) # With --enable-ipc, upTeX may need to link with -lsocket. -uptex_LDADD = $(uptex_ldadd) $(ipc_socketlibs) $(am__append_95) +uptex_LDADD = $(uptex_ldadd) $(ipc_socketlibs) $(am__append_97) uptex_DEPENDENCIES = $(uptex_dependencies) # upTeX C sources uptex_c_h = uptexini.c uptex0.c uptexcoerce.h uptexd.h nodist_uptex_SOURCES = $(uptex_c_h) uptex-pool.c dist_uptex_SOURCES = uptexdir/uptexextra.c uptexdir/uptexextra.h \ - uptexdir/uptex_version.h $(am__append_97) + uptexdir/uptex_version.h $(am__append_99) # We must create uptexd.h and uptexdir/uptex_version.h before building the uptex_OBJECTS. uptex_prereq = uptexd.h ptexdir/ptex_version.h \ - uptexdir/uptex_version.h $(am__append_96) + uptexdir/uptex_version.h $(am__append_98) uptex_web_srcs = \ tex.web \ tex.ch @@ -2387,23 +2427,23 @@ uptftopl_DEPENDENCIES = $(uptex_dependencies) # e-upTeX Tests # euptex_tests = euptexdir/euptrip.test -euptex_CPPFLAGS = $(PTEXENC_INCLUDES) $(AM_CPPFLAGS) $(am__append_102) +euptex_CPPFLAGS = $(PTEXENC_INCLUDES) $(AM_CPPFLAGS) $(am__append_104) # With --enable-ipc, e-upTeX may need to link with -lsocket. euptex_LDADD = libukanji.a $(pproglib) $(PTEXENC_LIBS) $(LDADD) \ - $(ipc_socketlibs) $(am__append_103) + $(ipc_socketlibs) $(am__append_105) euptex_DEPENDENCIES = libukanji.a $(pproglib) $(PTEXENC_DEPEND) $(default_dependencies) # e-upTeX C sources euptex_c_h = euptexini.c euptex0.c euptexcoerce.h euptexd.h nodist_euptex_SOURCES = $(euptex_c_h) euptex-pool.c dist_euptex_SOURCES = euptexdir/euptexextra.c euptexdir/euptexextra.h \ - $(am__append_105) + $(am__append_107) # We must create euptexd.h and [eu]ptexdir/[eu]ptex_version.h before building the euptex_OBJECTS. euptex_prereq = euptexd.h etexdir/etex_version.h \ ptexdir/ptex_version.h eptexdir/eptex_version.h \ - uptexdir/uptex_version.h $(am__append_104) + uptexdir/uptex_version.h $(am__append_106) euptex_web_srcs = \ tex.web \ etexdir/etex.ch \ @@ -2438,7 +2478,7 @@ pdftex_dependencies = $(proglib) $(KPATHSEA_DEPEND) $(LIBPNG_DEPEND) \ # Force Automake to use CXXLD for linking nodist_EXTRA_pdftex_SOURCES = dummy.cxx pdf_tangle = WEBINPUTS=.:$(srcdir)/pdftexdir AM_V_P=$(AM_V_P) $(SHELL) ./tangle-sh $@ $(TANGLE) -pdftex_CPPFLAGS = $(pdftex_cppflags) $(am__append_106) +pdftex_CPPFLAGS = $(pdftex_cppflags) $(am__append_108) pdftex_CXXFLAGS = $(WARNING_CXXFLAGS) # With --enable-ipc, pdfTeX may need to link with -lsocket. @@ -2451,7 +2491,7 @@ pdftex_c_h = pdftexini.c pdftex0.c pdftexcoerce.h pdftexd.h nodist_pdftex_SOURCES = $(pdftex_c_h) pdftex-pool.c dist_pdftex_SOURCES = pdftexdir/pdftexextra.c pdftexdir/pdftexextra.h \ pdftexdir/pdftex_version.h pdftexdir/etex_version.h \ - $(am__append_107) + $(am__append_109) pdftex_ch_srcs = \ pdftexdir/pdftex.web \ pdftexdir/tex.ch0 \ @@ -2578,6 +2618,67 @@ liblua51_a_SOURCES = \ luatexdir/lua51/lzio.c \ luatexdir/lua51/lzio.h +liblua52_a_CPPFLAGS = -I$(top_srcdir)/luatexdir/lua52 \ + -DLUA_COMPAT_MODULE $(am__append_66) $(am__append_67) +liblua52_a_CFLAGS = $(WARNING_CFLAGS) +liblua52_a_SOURCES = \ + luatexdir/lua52/lapi.c \ + luatexdir/lua52/lapi.h \ + luatexdir/lua52/lauxlib.c \ + luatexdir/lua52/lauxlib.h \ + luatexdir/lua52/lbaselib.c \ + luatexdir/lua52/lbitlib.c \ + luatexdir/lua52/lcode.c \ + luatexdir/lua52/lcode.h \ + luatexdir/lua52/lcorolib.c \ + luatexdir/lua52/lctype.c \ + luatexdir/lua52/lctype.h \ + luatexdir/lua52/ldblib.c \ + luatexdir/lua52/ldebug.c \ + luatexdir/lua52/ldebug.h \ + luatexdir/lua52/ldo.c \ + luatexdir/lua52/ldo.h \ + luatexdir/lua52/ldump.c \ + luatexdir/lua52/lfunc.c \ + luatexdir/lua52/lfunc.h \ + luatexdir/lua52/lgc.c \ + luatexdir/lua52/lgc.h \ + luatexdir/lua52/linit.c \ + luatexdir/lua52/liolib.c \ + luatexdir/lua52/llex.c \ + luatexdir/lua52/llex.h \ + luatexdir/lua52/llimits.h \ + luatexdir/lua52/lmathlib.c \ + luatexdir/lua52/lmem.c \ + luatexdir/lua52/lmem.h \ + luatexdir/lua52/loadlib.c \ + luatexdir/lua52/lobject.c \ + luatexdir/lua52/lobject.h \ + luatexdir/lua52/lopcodes.c \ + luatexdir/lua52/lopcodes.h \ + luatexdir/lua52/loslib.c \ + luatexdir/lua52/lparser.c \ + luatexdir/lua52/lparser.h \ + luatexdir/lua52/lstate.c \ + luatexdir/lua52/lstate.h \ + luatexdir/lua52/lstring.c \ + luatexdir/lua52/lstring.h \ + luatexdir/lua52/lstrlib.c \ + luatexdir/lua52/ltable.c \ + luatexdir/lua52/ltable.h \ + luatexdir/lua52/ltablib.c \ + luatexdir/lua52/ltm.c \ + luatexdir/lua52/ltm.h \ + luatexdir/lua52/lua.h \ + luatexdir/lua52/luaconf.h \ + luatexdir/lua52/lualib.h \ + luatexdir/lua52/lundump.c \ + luatexdir/lua52/lundump.h \ + luatexdir/lua52/lvm.c \ + luatexdir/lua52/lvm.h \ + luatexdir/lua52/lzio.c \ + luatexdir/lua52/lzio.h + libluasocket_a_DEPENDENCIES = $(ZLIB_DEPEND) liblua51.a libluasocket_a_CPPFLAGS = \ -DLUASOCKET_DEBUG -I$(top_srcdir)/luatexdir/luasocket -I$(srcdir)/luatexdir/lua51 @@ -2904,16 +3005,16 @@ libxetex = libxetex.a xetex_cppflags = $(AM_CPPFLAGS) -I$(srcdir)/xetexdir \ -DXETEX_BUILD_DATE="\"`date +%Y%m%d%H`\"" $(ICU_INCLUDES) \ $(FREETYPE2_INCLUDES) $(TECKIT_INCLUDES) $(HARFBUZZ_INCLUDES) \ - $(GRAPHITE2_INCLUDES) $(am__append_68) $(am__append_69) \ + $(GRAPHITE2_INCLUDES) $(am__append_70) $(am__append_71) \ $(ZLIB_INCLUDES) xetex_ldadd = $(libxetex) $(HARFBUZZ_LIBS) $(GRAPHITE2_LIBS) \ - $(ICU_LIBS) $(TECKIT_LIBS) $(am__append_70) $(FREETYPE2_LIBS) \ + $(ICU_LIBS) $(TECKIT_LIBS) $(am__append_72) $(FREETYPE2_LIBS) \ $(ZLIB_LIBS) xetex_dependencies = $(proglib) $(KPATHSEA_DEPEND) $(ICU_DEPEND) \ $(TECKIT_DEPEND) $(HARFBUZZ_DEPEND) $(GRAPHITE2_DEPEND) \ - $(am__append_71) $(FREETYPE2_DEPEND) $(ZLIB_DEPEND) + $(am__append_73) $(FREETYPE2_DEPEND) $(ZLIB_DEPEND) @XETEX_MACOSX_TRUE@xetex_LDFLAGS = -framework ApplicationServices -framework Cocoa -xetex_CPPFLAGS = $(xetex_cppflags) $(am__append_108) +xetex_CPPFLAGS = $(xetex_cppflags) $(am__append_110) xetex_CFLAGS = # $(WARNING_CFLAGS) xetex_CXXFLAGS = # $(WARNING_CXXFLAGS) xetex_LDADD = $(xetex_ldadd) $(LDADD) $(ipc_socketlibs) @@ -2924,7 +3025,7 @@ xetex_c_h = xetexini.c xetex0.c xetexcoerce.h xetexd.h nodist_xetex_SOURCES = $(xetex_c_h) xetex-pool.c dist_xetex_SOURCES = xetexdir/xetexextra.c xetexdir/xetexextra.h \ xetexdir/etex_version.h xetexdir/xetex_version.h \ - $(am__append_109) + $(am__append_111) xetex_ch_srcs = \ xetexdir/xetex.web \ xetexdir/tex.ch0 \ @@ -2945,7 +3046,7 @@ libxetex_a_SOURCES = xetexdir/MathTable.h xetexdir/XeTeXFontInst.cpp \ xetexdir/XeTeXOTMath.h xetexdir/XeTeX_ext.c \ xetexdir/XeTeX_ext.h xetexdir/XeTeXswap.h xetexdir/trans.c \ xetexdir/trans.h xetexdir/hz.cpp xetexdir/xetex.h \ - $(am__append_72) $(am__append_73) + $(am__append_74) $(am__append_75) # We must create xetexd.h etc. before building the libxetex_a_OBJECTS. libxetex_prereq = xetexd.h $(xetex_dependencies) @@ -3147,7 +3248,7 @@ all: ff-config.h .SUFFIXES: .c .cc .cin .cpp .cxx .h .hin .lo .log .mm .o .obj .p .pin .test .test$(EXEEXT) .trs am--refresh: Makefile @: -$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(srcdir)/am/bootstrap.am $(srcdir)/am/web.am $(srcdir)/am/cweb.am $(srcdir)/am/texmf.am $(srcdir)/mplibdir/am/mplib.am $(srcdir)/mplibdir/am/libmplib.am $(srcdir)/etexdir/am/etex.am $(srcdir)/ptexdir/am/ptex.am $(srcdir)/eptexdir/am/eptex.am $(srcdir)/uptexdir/am/uptex.am $(srcdir)/euptexdir/am/euptex.am $(srcdir)/pdftexdir/am/pdftex.am $(srcdir)/pdftexdir/am/libpdftex.am $(srcdir)/pdftexdir/am/ttf2afm.am $(srcdir)/pdftexdir/am/pdftosrc.am $(srcdir)/luatexdir/am/luatex.am $(srcdir)/luatexdir/am/liblua51.am $(srcdir)/luatexdir/am/luasocket.am $(srcdir)/luatexdir/am/luamisc.am $(srcdir)/luatexdir/am/luafontforge.am $(srcdir)/luatexdir/am/libluatex.am $(srcdir)/luatexdir/am/txt2zlib.am $(srcdir)/xetexdir/am/xetex.am $(srcdir)/omegaware/am/omegaware.am $(srcdir)/alephdir/am/aleph.am $(srcdir)/synctexdir/am/synctex.am $(srcdir)/libmd5/am/md5.am $(srcdir)/../am/bin_links.am $(am__configure_deps) +$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(srcdir)/am/bootstrap.am $(srcdir)/am/web.am $(srcdir)/am/cweb.am $(srcdir)/am/texmf.am $(srcdir)/mplibdir/am/mplib.am $(srcdir)/mplibdir/am/libmplib.am $(srcdir)/etexdir/am/etex.am $(srcdir)/ptexdir/am/ptex.am $(srcdir)/eptexdir/am/eptex.am $(srcdir)/uptexdir/am/uptex.am $(srcdir)/euptexdir/am/euptex.am $(srcdir)/pdftexdir/am/pdftex.am $(srcdir)/pdftexdir/am/libpdftex.am $(srcdir)/pdftexdir/am/ttf2afm.am $(srcdir)/pdftexdir/am/pdftosrc.am $(srcdir)/luatexdir/am/luatex.am $(srcdir)/luatexdir/am/liblua51.am $(srcdir)/luatexdir/am/liblua52.am $(srcdir)/luatexdir/am/luasocket.am $(srcdir)/luatexdir/am/luamisc.am $(srcdir)/luatexdir/am/luafontforge.am $(srcdir)/luatexdir/am/libluatex.am $(srcdir)/luatexdir/am/txt2zlib.am $(srcdir)/xetexdir/am/xetex.am $(srcdir)/omegaware/am/omegaware.am $(srcdir)/alephdir/am/aleph.am $(srcdir)/synctexdir/am/synctex.am $(srcdir)/libmd5/am/md5.am $(srcdir)/../am/bin_links.am $(am__configure_deps) @for dep in $?; do \ case '$(am__configure_deps)' in \ *$$dep*) \ @@ -3169,7 +3270,7 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \ cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \ esac; -$(srcdir)/am/bootstrap.am $(srcdir)/am/web.am $(srcdir)/am/cweb.am $(srcdir)/am/texmf.am $(srcdir)/mplibdir/am/mplib.am $(srcdir)/mplibdir/am/libmplib.am $(srcdir)/etexdir/am/etex.am $(srcdir)/ptexdir/am/ptex.am $(srcdir)/eptexdir/am/eptex.am $(srcdir)/uptexdir/am/uptex.am $(srcdir)/euptexdir/am/euptex.am $(srcdir)/pdftexdir/am/pdftex.am $(srcdir)/pdftexdir/am/libpdftex.am $(srcdir)/pdftexdir/am/ttf2afm.am $(srcdir)/pdftexdir/am/pdftosrc.am $(srcdir)/luatexdir/am/luatex.am $(srcdir)/luatexdir/am/liblua51.am $(srcdir)/luatexdir/am/luasocket.am $(srcdir)/luatexdir/am/luamisc.am $(srcdir)/luatexdir/am/luafontforge.am $(srcdir)/luatexdir/am/libluatex.am $(srcdir)/luatexdir/am/txt2zlib.am $(srcdir)/xetexdir/am/xetex.am $(srcdir)/omegaware/am/omegaware.am $(srcdir)/alephdir/am/aleph.am $(srcdir)/synctexdir/am/synctex.am $(srcdir)/libmd5/am/md5.am $(srcdir)/../am/bin_links.am: +$(srcdir)/am/bootstrap.am $(srcdir)/am/web.am $(srcdir)/am/cweb.am 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+@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -MT luatexdir/lua52/liblua52_a-ltm.obj -MD -MP -MF luatexdir/lua52/$(DEPDIR)/liblua52_a-ltm.Tpo -c -o luatexdir/lua52/liblua52_a-ltm.obj `if test -f 'luatexdir/lua52/ltm.c'; then $(CYGPATH_W) 'luatexdir/lua52/ltm.c'; else $(CYGPATH_W) '$(srcdir)/luatexdir/lua52/ltm.c'; fi` +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) luatexdir/lua52/$(DEPDIR)/liblua52_a-ltm.Tpo luatexdir/lua52/$(DEPDIR)/liblua52_a-ltm.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='luatexdir/lua52/ltm.c' object='luatexdir/lua52/liblua52_a-ltm.obj' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -c -o luatexdir/lua52/liblua52_a-ltm.obj `if test -f 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object='luatexdir/lua52/liblua52_a-lundump.obj' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -c -o luatexdir/lua52/liblua52_a-lundump.obj `if test -f 'luatexdir/lua52/lundump.c'; then $(CYGPATH_W) 'luatexdir/lua52/lundump.c'; else $(CYGPATH_W) '$(srcdir)/luatexdir/lua52/lundump.c'; fi` + +luatexdir/lua52/liblua52_a-lvm.o: luatexdir/lua52/lvm.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -MT luatexdir/lua52/liblua52_a-lvm.o -MD -MP -MF luatexdir/lua52/$(DEPDIR)/liblua52_a-lvm.Tpo -c -o luatexdir/lua52/liblua52_a-lvm.o `test -f 'luatexdir/lua52/lvm.c' || echo '$(srcdir)/'`luatexdir/lua52/lvm.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) luatexdir/lua52/$(DEPDIR)/liblua52_a-lvm.Tpo luatexdir/lua52/$(DEPDIR)/liblua52_a-lvm.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='luatexdir/lua52/lvm.c' object='luatexdir/lua52/liblua52_a-lvm.o' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -c -o luatexdir/lua52/liblua52_a-lvm.o `test -f 'luatexdir/lua52/lvm.c' || echo '$(srcdir)/'`luatexdir/lua52/lvm.c + +luatexdir/lua52/liblua52_a-lvm.obj: luatexdir/lua52/lvm.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -MT luatexdir/lua52/liblua52_a-lvm.obj -MD -MP -MF luatexdir/lua52/$(DEPDIR)/liblua52_a-lvm.Tpo -c -o luatexdir/lua52/liblua52_a-lvm.obj `if test -f 'luatexdir/lua52/lvm.c'; then $(CYGPATH_W) 'luatexdir/lua52/lvm.c'; else $(CYGPATH_W) '$(srcdir)/luatexdir/lua52/lvm.c'; fi` +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) luatexdir/lua52/$(DEPDIR)/liblua52_a-lvm.Tpo luatexdir/lua52/$(DEPDIR)/liblua52_a-lvm.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='luatexdir/lua52/lvm.c' object='luatexdir/lua52/liblua52_a-lvm.obj' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -c -o luatexdir/lua52/liblua52_a-lvm.obj `if test -f 'luatexdir/lua52/lvm.c'; then $(CYGPATH_W) 'luatexdir/lua52/lvm.c'; else $(CYGPATH_W) '$(srcdir)/luatexdir/lua52/lvm.c'; fi` + +luatexdir/lua52/liblua52_a-lzio.o: luatexdir/lua52/lzio.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -MT luatexdir/lua52/liblua52_a-lzio.o -MD -MP -MF luatexdir/lua52/$(DEPDIR)/liblua52_a-lzio.Tpo -c -o luatexdir/lua52/liblua52_a-lzio.o `test -f 'luatexdir/lua52/lzio.c' || echo '$(srcdir)/'`luatexdir/lua52/lzio.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) luatexdir/lua52/$(DEPDIR)/liblua52_a-lzio.Tpo luatexdir/lua52/$(DEPDIR)/liblua52_a-lzio.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='luatexdir/lua52/lzio.c' object='luatexdir/lua52/liblua52_a-lzio.o' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -c -o luatexdir/lua52/liblua52_a-lzio.o `test -f 'luatexdir/lua52/lzio.c' || echo '$(srcdir)/'`luatexdir/lua52/lzio.c + +luatexdir/lua52/liblua52_a-lzio.obj: luatexdir/lua52/lzio.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -MT luatexdir/lua52/liblua52_a-lzio.obj -MD -MP -MF luatexdir/lua52/$(DEPDIR)/liblua52_a-lzio.Tpo -c -o luatexdir/lua52/liblua52_a-lzio.obj `if test -f 'luatexdir/lua52/lzio.c'; then $(CYGPATH_W) 'luatexdir/lua52/lzio.c'; else $(CYGPATH_W) '$(srcdir)/luatexdir/lua52/lzio.c'; fi` +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) luatexdir/lua52/$(DEPDIR)/liblua52_a-lzio.Tpo luatexdir/lua52/$(DEPDIR)/liblua52_a-lzio.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='luatexdir/lua52/lzio.c' object='luatexdir/lua52/liblua52_a-lzio.obj' libtool=no @AMDEPBACKSLASH@ +@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(liblua52_a_CPPFLAGS) $(CPPFLAGS) $(liblua52_a_CFLAGS) $(CFLAGS) -c -o luatexdir/lua52/liblua52_a-lzio.obj `if test -f 'luatexdir/lua52/lzio.c'; then $(CYGPATH_W) 'luatexdir/lua52/lzio.c'; else $(CYGPATH_W) '$(srcdir)/luatexdir/lua52/lzio.c'; fi` + luatexdir/luafilesystem/src/libluamisc_a-lfs.o: luatexdir/luafilesystem/src/lfs.c @am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libluamisc_a_CPPFLAGS) $(CPPFLAGS) $(libluamisc_a_CFLAGS) $(CFLAGS) -MT luatexdir/luafilesystem/src/libluamisc_a-lfs.o -MD -MP -MF luatexdir/luafilesystem/src/$(DEPDIR)/libluamisc_a-lfs.Tpo -c -o luatexdir/luafilesystem/src/libluamisc_a-lfs.o `test -f 'luatexdir/luafilesystem/src/lfs.c' || echo '$(srcdir)/'`luatexdir/luafilesystem/src/lfs.c @am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) luatexdir/luafilesystem/src/$(DEPDIR)/libluamisc_a-lfs.Tpo luatexdir/luafilesystem/src/$(DEPDIR)/libluamisc_a-lfs.Po @@ -10380,6 +11068,8 @@ distclean-generic: -rm -f luatexdir/lua/$(am__dirstamp) -rm -f luatexdir/lua51/$(DEPDIR)/$(am__dirstamp) -rm -f luatexdir/lua51/$(am__dirstamp) + -rm -f luatexdir/lua52/$(DEPDIR)/$(am__dirstamp) + -rm -f luatexdir/lua52/$(am__dirstamp) -rm -f luatexdir/luafilesystem/src/$(DEPDIR)/$(am__dirstamp) -rm -f luatexdir/luafilesystem/src/$(am__dirstamp) -rm -f luatexdir/luafontloader/fontforge/Unicode/$(DEPDIR)/$(am__dirstamp) @@ -10432,7 +11122,7 @@ clean-am: clean-binPROGRAMS clean-checkPROGRAMS clean-generic \ distclean: distclean-recursive -rm -f $(am__CONFIG_DISTCLEAN_FILES) - -rm -rf ./$(DEPDIR) alephdir/$(DEPDIR) eptexdir/$(DEPDIR) etexdir/$(DEPDIR) euptexdir/$(DEPDIR) libmd5/$(DEPDIR) luatexdir/$(DEPDIR) luatexdir/image/$(DEPDIR) luatexdir/lua/$(DEPDIR) luatexdir/lua51/$(DEPDIR) luatexdir/luafilesystem/src/$(DEPDIR) luatexdir/luafontloader/fontforge/Unicode/$(DEPDIR) luatexdir/luafontloader/fontforge/fontforge/$(DEPDIR) luatexdir/luafontloader/fontforge/gutils/$(DEPDIR) luatexdir/luafontloader/src/$(DEPDIR) luatexdir/luamd5/$(DEPDIR) luatexdir/luapeg/$(DEPDIR) luatexdir/luaprofiler/$(DEPDIR) luatexdir/luasocket/src/$(DEPDIR) luatexdir/luazip/src/$(DEPDIR) luatexdir/luazlib/$(DEPDIR) luatexdir/slnunicode/$(DEPDIR) luatexdir/utils/$(DEPDIR) mplibdir/$(DEPDIR) pdftexdir/$(DEPDIR) pdftexdir/regex/$(DEPDIR) ptexdir/$(DEPDIR) synctexdir/$(DEPDIR) uptexdir/$(DEPDIR) xetexdir/$(DEPDIR) + -rm -rf ./$(DEPDIR) alephdir/$(DEPDIR) eptexdir/$(DEPDIR) etexdir/$(DEPDIR) euptexdir/$(DEPDIR) libmd5/$(DEPDIR) luatexdir/$(DEPDIR) luatexdir/image/$(DEPDIR) luatexdir/lua/$(DEPDIR) luatexdir/lua51/$(DEPDIR) luatexdir/lua52/$(DEPDIR) luatexdir/luafilesystem/src/$(DEPDIR) luatexdir/luafontloader/fontforge/Unicode/$(DEPDIR) luatexdir/luafontloader/fontforge/fontforge/$(DEPDIR) luatexdir/luafontloader/fontforge/gutils/$(DEPDIR) luatexdir/luafontloader/src/$(DEPDIR) luatexdir/luamd5/$(DEPDIR) luatexdir/luapeg/$(DEPDIR) luatexdir/luaprofiler/$(DEPDIR) luatexdir/luasocket/src/$(DEPDIR) luatexdir/luazip/src/$(DEPDIR) luatexdir/luazlib/$(DEPDIR) luatexdir/slnunicode/$(DEPDIR) luatexdir/utils/$(DEPDIR) mplibdir/$(DEPDIR) pdftexdir/$(DEPDIR) pdftexdir/regex/$(DEPDIR) ptexdir/$(DEPDIR) synctexdir/$(DEPDIR) uptexdir/$(DEPDIR) xetexdir/$(DEPDIR) -rm -f Makefile distclean-am: clean-am distclean-compile distclean-generic \ distclean-hdr distclean-libtool distclean-tags @@ -10481,7 +11171,7 @@ installcheck-am: maintainer-clean: maintainer-clean-recursive -rm -f $(am__CONFIG_DISTCLEAN_FILES) -rm -rf $(top_srcdir)/autom4te.cache - -rm -rf ./$(DEPDIR) alephdir/$(DEPDIR) eptexdir/$(DEPDIR) etexdir/$(DEPDIR) euptexdir/$(DEPDIR) libmd5/$(DEPDIR) luatexdir/$(DEPDIR) luatexdir/image/$(DEPDIR) luatexdir/lua/$(DEPDIR) luatexdir/lua51/$(DEPDIR) luatexdir/luafilesystem/src/$(DEPDIR) luatexdir/luafontloader/fontforge/Unicode/$(DEPDIR) luatexdir/luafontloader/fontforge/fontforge/$(DEPDIR) luatexdir/luafontloader/fontforge/gutils/$(DEPDIR) luatexdir/luafontloader/src/$(DEPDIR) luatexdir/luamd5/$(DEPDIR) luatexdir/luapeg/$(DEPDIR) luatexdir/luaprofiler/$(DEPDIR) luatexdir/luasocket/src/$(DEPDIR) luatexdir/luazip/src/$(DEPDIR) luatexdir/luazlib/$(DEPDIR) luatexdir/slnunicode/$(DEPDIR) luatexdir/utils/$(DEPDIR) mplibdir/$(DEPDIR) pdftexdir/$(DEPDIR) pdftexdir/regex/$(DEPDIR) ptexdir/$(DEPDIR) synctexdir/$(DEPDIR) uptexdir/$(DEPDIR) xetexdir/$(DEPDIR) + -rm -rf ./$(DEPDIR) alephdir/$(DEPDIR) eptexdir/$(DEPDIR) etexdir/$(DEPDIR) euptexdir/$(DEPDIR) libmd5/$(DEPDIR) luatexdir/$(DEPDIR) luatexdir/image/$(DEPDIR) luatexdir/lua/$(DEPDIR) luatexdir/lua51/$(DEPDIR) luatexdir/lua52/$(DEPDIR) luatexdir/luafilesystem/src/$(DEPDIR) luatexdir/luafontloader/fontforge/Unicode/$(DEPDIR) luatexdir/luafontloader/fontforge/fontforge/$(DEPDIR) luatexdir/luafontloader/fontforge/gutils/$(DEPDIR) luatexdir/luafontloader/src/$(DEPDIR) luatexdir/luamd5/$(DEPDIR) luatexdir/luapeg/$(DEPDIR) luatexdir/luaprofiler/$(DEPDIR) luatexdir/luasocket/src/$(DEPDIR) luatexdir/luazip/src/$(DEPDIR) luatexdir/luazlib/$(DEPDIR) luatexdir/slnunicode/$(DEPDIR) luatexdir/utils/$(DEPDIR) mplibdir/$(DEPDIR) pdftexdir/$(DEPDIR) pdftexdir/regex/$(DEPDIR) ptexdir/$(DEPDIR) synctexdir/$(DEPDIR) uptexdir/$(DEPDIR) xetexdir/$(DEPDIR) -rm -f Makefile maintainer-clean-am: distclean-am maintainer-clean-generic diff --git a/Build/source/texk/web2c/configure b/Build/source/texk/web2c/configure index bbb361202e6..11db7c091e3 100755 --- a/Build/source/texk/web2c/configure +++ b/Build/source/texk/web2c/configure @@ -777,6 +777,8 @@ FONTCONFIG_INCLUDES PKG_CONFIG ipc_socketlibs lua_socketlibs +USE_DLOPEN_FALSE +USE_DLOPEN_TRUE WIN32_CALL_FALSE WIN32_CALL_TRUE MINGW32_FALSE @@ -18810,6 +18812,14 @@ fi lua_socketlibs="$lua_socketlibs $ac_cv_search_nanosleep" ;; esac fi + if test "x$ac_cv_header_dlfcn_h" = xyes; then + USE_DLOPEN_TRUE= + USE_DLOPEN_FALSE='#' +else + USE_DLOPEN_TRUE='#' + USE_DLOPEN_FALSE= +fi + @@ -23929,6 +23939,10 @@ if test -z "${WIN32_CALL_TRUE}" && test -z "${WIN32_CALL_FALSE}"; then as_fn_error $? "conditional \"WIN32_CALL\" was never defined. Usually this means the macro was only invoked conditionally." "$LINENO" 5 fi +if test -z "${USE_DLOPEN_TRUE}" && test -z "${USE_DLOPEN_FALSE}"; then + as_fn_error $? "conditional \"USE_DLOPEN\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi if test -z "${XETEX_MACOSX_TRUE}" && test -z "${XETEX_MACOSX_FALSE}"; then as_fn_error $? "conditional \"XETEX_MACOSX\" was never defined. Usually this means the macro was only invoked conditionally." "$LINENO" 5 diff --git a/Build/source/texk/web2c/configure.ac b/Build/source/texk/web2c/configure.ac index 1bab985a477..3573b51de8d 100644 --- a/Build/source/texk/web2c/configure.ac +++ b/Build/source/texk/web2c/configure.ac @@ -130,6 +130,7 @@ if test "x$kpse_cv_have_win32" = xno; then [no], [WEB2C_DISABLE([luatex], [no nanosleep()])], [lua_socketlibs="$lua_socketlibs $ac_cv_search_nanosleep"]) fi +AM_CONDITIONAL([USE_DLOPEN], [test "x$ac_cv_header_dlfcn_h" = xyes]) AC_SUBST([lua_socketlibs]) AC_SUBST([ipc_socketlibs]) diff --git a/Build/source/texk/web2c/luatexdir/ChangeLog b/Build/source/texk/web2c/luatexdir/ChangeLog index d1e0354c2cb..ab149bdc235 100644 --- a/Build/source/texk/web2c/luatexdir/ChangeLog +++ b/Build/source/texk/web2c/luatexdir/ChangeLog @@ -1,3 +1,7 @@ +2013-03-12 Peter Breitenlohner <peb@mppmu.mpg.de> + + * lua52/*, am/liblua52.am (new): Add lua-5.2.1 for 0.75.0. + 2013-01-29 Peter Breitenlohner <peb@mppmu.mpg.de> * am/luatex.am: Allow subdir-objects. diff --git a/Build/source/texk/web2c/luatexdir/am/liblua52.am b/Build/source/texk/web2c/luatexdir/am/liblua52.am new file mode 100644 index 00000000000..5f4ad91045c --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/am/liblua52.am @@ -0,0 +1,84 @@ +## texk/web2c/luatexdir/am/liblua52.am: Makefile fragment for liblua52. +## +## Copyright (C) 2009-2013 Peter Breitenlohner <tex-live@tug.org> +## You may freely use, modify and/or distribute this file. + +## liblua52 +## +EXTRA_LIBRARIES += liblua52.a + +liblua52_a_CPPFLAGS = -I$(top_srcdir)/luatexdir/lua52 -DLUA_COMPAT_MODULE +if !WIN32 +liblua52_a_CPPFLAGS += -DLUA_USE_POSIX +if USE_DLOPEN +liblua52_a_CPPFLAGS += -DLUA_USE_DLOPEN +endif USE_DLOPEN +endif !WIN32 +liblua52_a_CFLAGS = $(WARNING_CFLAGS) + +liblua52_a_SOURCES = \ + luatexdir/lua52/lapi.c \ + luatexdir/lua52/lapi.h \ + luatexdir/lua52/lauxlib.c \ + luatexdir/lua52/lauxlib.h \ + luatexdir/lua52/lbaselib.c \ + luatexdir/lua52/lbitlib.c \ + luatexdir/lua52/lcode.c \ + luatexdir/lua52/lcode.h \ + luatexdir/lua52/lcorolib.c \ + luatexdir/lua52/lctype.c \ + luatexdir/lua52/lctype.h \ + luatexdir/lua52/ldblib.c \ + luatexdir/lua52/ldebug.c \ + luatexdir/lua52/ldebug.h \ + luatexdir/lua52/ldo.c \ + luatexdir/lua52/ldo.h \ + luatexdir/lua52/ldump.c \ + luatexdir/lua52/lfunc.c \ + luatexdir/lua52/lfunc.h \ + luatexdir/lua52/lgc.c \ + luatexdir/lua52/lgc.h \ + luatexdir/lua52/linit.c \ + luatexdir/lua52/liolib.c \ + luatexdir/lua52/llex.c \ + luatexdir/lua52/llex.h \ + luatexdir/lua52/llimits.h \ + luatexdir/lua52/lmathlib.c \ + luatexdir/lua52/lmem.c \ + luatexdir/lua52/lmem.h \ + luatexdir/lua52/loadlib.c \ + luatexdir/lua52/lobject.c \ + luatexdir/lua52/lobject.h \ + luatexdir/lua52/lopcodes.c \ + luatexdir/lua52/lopcodes.h \ + luatexdir/lua52/loslib.c \ + luatexdir/lua52/lparser.c \ + luatexdir/lua52/lparser.h \ + luatexdir/lua52/lstate.c \ + luatexdir/lua52/lstate.h \ + luatexdir/lua52/lstring.c \ + luatexdir/lua52/lstring.h \ + luatexdir/lua52/lstrlib.c \ + luatexdir/lua52/ltable.c \ + luatexdir/lua52/ltable.h \ + luatexdir/lua52/ltablib.c \ + luatexdir/lua52/ltm.c \ + luatexdir/lua52/ltm.h \ + luatexdir/lua52/lua.h \ + luatexdir/lua52/luaconf.h \ + luatexdir/lua52/lualib.h \ + luatexdir/lua52/lundump.c \ + luatexdir/lua52/lundump.h \ + luatexdir/lua52/lvm.c \ + luatexdir/lua52/lvm.h \ + luatexdir/lua52/lzio.c \ + luatexdir/lua52/lzio.h + +## Not used +## +EXTRA_DIST += \ + luatexdir/lua52/Makefile \ + luatexdir/lua52/lua.hpp \ + luatexdir/lua52/lua.c \ + luatexdir/lua52/luac.c + diff --git a/Build/source/texk/web2c/luatexdir/lua52/Makefile b/Build/source/texk/web2c/luatexdir/lua52/Makefile new file mode 100644 index 00000000000..8c9ee677ee0 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/Makefile @@ -0,0 +1,187 @@ +# 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 -lncurses" + +macosx: + $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_MACOSX" SYSLIBS="-lreadline" + +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/texk/web2c/luatexdir/lua52/lapi.c b/Build/source/texk/web2c/luatexdir/lua52/lapi.c new file mode 100644 index 00000000000..1854fe6159e --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lapi.c @@ -0,0 +1,1281 @@ +/* +** $Id: lapi.c,v 2.164 2012/06/08 15:14:04 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) + +#define api_checkvalidindex(L, i) api_check(L, isvalid(i), "invalid index") + + +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 (idx > LUA_REGISTRYINDEX) { + 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 || idx <= LUA_REGISTRYINDEX) + ? 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_checkvalidindex(L, 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_checkvalidindex(L, p); + for (q = L->top; q>p; q--) 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); + api_checkvalidindex(L, fr); + 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)) { + changenvalue(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); + api_checkvalidindex(L, t); + 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); + api_checkvalidindex(L, t); + 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_checkvalidindex(L, o); + 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); + api_checkvalidindex(L, t); + 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); + api_checkvalidindex(L, t); + 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); + api_checkvalidindex(L, obj); + 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_checkvalidindex(L, o); + 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_checkvalidindex(L, 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); + lua_unlock(L); + 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/texk/web2c/luatexdir/lua52/lapi.h b/Build/source/texk/web2c/luatexdir/lua52/lapi.h new file mode 100644 index 00000000000..0909a3911d2 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lapi.h @@ -0,0 +1,24 @@ +/* +** $Id: lapi.h,v 2.7 2009/11/27 15:37:59 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/texk/web2c/luatexdir/lua52/lauxlib.c b/Build/source/texk/web2c/luatexdir/lua52/lauxlib.c new file mode 100644 index 00000000000..36ae7e629f5 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lauxlib.c @@ -0,0 +1,958 @@ +/* +** $Id: lauxlib.c,v 1.244 2012/05/31 20:28:45 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_pushfstring(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", ar.name); + } + 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_pushfstring(L, "%s", 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 bit 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 != *(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/texk/web2c/luatexdir/lua52/lauxlib.h b/Build/source/texk/web2c/luatexdir/lua52/lauxlib.h new file mode 100644 index 00000000000..ac4d15fbb94 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lauxlib.h @@ -0,0 +1,212 @@ +/* +** $Id: lauxlib.h,v 1.120 2011/11/29 15:55:08 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/texk/web2c/luatexdir/lua52/lbaselib.c b/Build/source/texk/web2c/luatexdir/lua52/lbaselib.c new file mode 100644 index 00000000000..dbfcb02cfc9 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lbaselib.c @@ -0,0 +1,459 @@ +/* +** $Id: lbaselib.c,v 1.274 2012/04/27 14:13:19 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) { + if (status == LUA_OK) + return 1; + else { + 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); /* 'env' parameter? */ + int status = luaL_loadfilex(L, fname, mode); + if (status == LUA_OK && env) { /* 'env' parameter? */ + lua_pushvalue(L, 3); + lua_setupvalue(L, -2, 1); /* set it as 1st upvalue of loaded chunk */ + } + return load_aux(L, status); +} + + +/* +** {====================================================== +** 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; + int top = lua_gettop(L); + const char *s = lua_tolstring(L, 1, &l); + const char *mode = luaL_optstring(L, 3, "bt"); + 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); + } + if (status == LUA_OK && top >= 4) { /* is there an 'env' argument */ + lua_pushvalue(L, 4); /* environment for loaded function */ + lua_setupvalue(L, -2, 1); /* set it as 1st upvalue */ + } + return load_aux(L, status); +} + +/* }====================================================== */ + + +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) 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/texk/web2c/luatexdir/lua52/lbitlib.c b/Build/source/texk/web2c/luatexdir/lua52/lbitlib.c new file mode 100644 index 00000000000..7533b85c5a4 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lbitlib.c @@ -0,0 +1,209 @@ +/* +** $Id: lbitlib.c,v 1.16 2011/06/20 16:35:23 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); + 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 +*/ +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/texk/web2c/luatexdir/lua52/lcode.c b/Build/source/texk/web2c/luatexdir/lua52/lcode.c new file mode 100644 index 00000000000..614e452f9c5 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lcode.c @@ -0,0 +1,882 @@ +/* +** $Id: lcode.c,v 2.60 2011/08/30 16:26:41 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))); + incr_top(L); + 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/texk/web2c/luatexdir/lua52/lcode.h b/Build/source/texk/web2c/luatexdir/lua52/lcode.h new file mode 100644 index 00000000000..5a1fa9feac6 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lcode.h @@ -0,0 +1,83 @@ +/* +** $Id: lcode.h,v 1.58 2011/08/30 16:26:41 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/texk/web2c/luatexdir/lua52/lcorolib.c b/Build/source/texk/web2c/luatexdir/lua52/lcorolib.c new file mode 100644 index 00000000000..c7932d90f25 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lcorolib.c @@ -0,0 +1,155 @@ +/* +** $Id: lcorolib.c,v 1.4 2012/04/27 18:59:04 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); + } + 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/texk/web2c/luatexdir/lua52/lctype.c b/Build/source/texk/web2c/luatexdir/lua52/lctype.c new file mode 100644 index 00000000000..55e433a5dd7 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lctype.c @@ -0,0 +1,52 @@ +/* +** $Id: lctype.c,v 1.11 2011/10/03 16:19:23 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/texk/web2c/luatexdir/lua52/lctype.h b/Build/source/texk/web2c/luatexdir/lua52/lctype.h new file mode 100644 index 00000000000..99c7d122376 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lctype.h @@ -0,0 +1,95 @@ +/* +** $Id: lctype.h,v 1.12 2011/07/15 12:50:29 roberto Exp $ +** 'ctype' functions for Lua +** See Copyright Notice in lua.h +*/ + +#ifndef lctype_h +#define lctype_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 '_' +*/ +#define lislalpha(c) testprop(c, MASK(ALPHABIT)) +#define lislalnum(c) testprop(c, (MASK(ALPHABIT) | MASK(DIGITBIT))) +#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/texk/web2c/luatexdir/lua52/ldblib.c b/Build/source/texk/web2c/luatexdir/lua52/ldblib.c new file mode 100644 index 00000000000..c0226945737 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ldblib.c @@ -0,0 +1,398 @@ +/* +** $Id: ldblib.c,v 1.132 2012/01/19 20:14:44 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 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"); + 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"); + 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); + 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 */ + } + 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); + 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/texk/web2c/luatexdir/lua52/ldebug.c b/Build/source/texk/web2c/luatexdir/lua52/ldebug.c new file mode 100644 index 00000000000..43f8f046fff --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ldebug.c @@ -0,0 +1,580 @@ +/* +** $Id: ldebug.c,v 2.89 2012/01/20 22:05:50 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)); +} + + +/* +** 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); + 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); + } + } + 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 = findlocal(L, ar->i_ci, n, &pos); + lua_lock(L); + if (name) + setobjs2s(L, pos, L->top - 1); + L->top--; /* pop value */ + 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); + 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 */ + 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); + 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); + incr_top(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 */ +} + + +/* +** 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' */ + 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 = pc; + break; + } + case OP_TFORCALL: { + if (reg >= a + 2) setreg = pc; /* affect all regs above its base */ + break; + } + case OP_CALL: + case OP_TAILCALL: { + if (reg >= a) setreg = pc; /* affect all registers above base */ + 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) + pc += b; /* do the jump */ + break; + } + case OP_TEST: { + if (reg == a) setreg = pc; /* jumped code can change 'a' */ + break; + } + default: + if (testAMode(op) && reg == a) /* any instruction that set A */ + setreg = pc; + 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(p2)); + 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 */ + incr_top(L); + 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/texk/web2c/luatexdir/lua52/ldebug.h b/Build/source/texk/web2c/luatexdir/lua52/ldebug.h new file mode 100644 index 00000000000..fe39556b062 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ldebug.h @@ -0,0 +1,34 @@ +/* +** $Id: ldebug.h,v 2.7 2011/10/07 20:45:19 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/texk/web2c/luatexdir/lua52/ldo.c b/Build/source/texk/web2c/luatexdir/lua52/ldo.c new file mode 100644 index 00000000000..d18e33cd418 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ldo.c @@ -0,0 +1,668 @@ +/* +** $Id: ldo.c,v 2.105 2012/06/08 15:14:04 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 */ + 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; + 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; + luaD_checkstack(L, p->maxstacksize); + func = restorestack(L, funcr); + n = cast_int(L->top - func) - 1; /* number of real arguments */ + for (; n < p->numparams; n++) + setnilvalue(L->top++); /* complete missing arguments */ + base = (!p->is_vararg) ? func + 1 : adjust_varargs(L, p, n); + 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; + 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--; + luaC_checkGC(L); +} + + +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); + /* finish 'lua_callk' */ + 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 */ + 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; + 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 = 1; /* do not allow yields */ + 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 metamethod/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/texk/web2c/luatexdir/lua52/ldo.h b/Build/source/texk/web2c/luatexdir/lua52/ldo.h new file mode 100644 index 00000000000..27b837d999e --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ldo.h @@ -0,0 +1,46 @@ +/* +** $Id: ldo.h,v 2.20 2011/11/29 15:55:08 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/texk/web2c/luatexdir/lua52/ldump.c b/Build/source/texk/web2c/luatexdir/lua52/ldump.c new file mode 100644 index 00000000000..d5e6a47cb38 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ldump.c @@ -0,0 +1,173 @@ +/* +** $Id: ldump.c,v 2.17 2012/01/23 23:02:10 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/texk/web2c/luatexdir/lua52/lfunc.c b/Build/source/texk/web2c/luatexdir/lua52/lfunc.c new file mode 100644 index 00000000000..4fd27fe5ebb --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lfunc.c @@ -0,0 +1,161 @@ +/* +** $Id: lfunc.c,v 2.29 2012/05/08 13:53:33 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); + if (p->v == level) { /* found a corresponding upvalue? */ + if (isdead(g, o)) /* is it dead? */ + changewhite(o); /* resurrect it */ + return p; + } + resetoldbit(o); /* may create a newer upval after this one */ + 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/texk/web2c/luatexdir/lua52/lfunc.h b/Build/source/texk/web2c/luatexdir/lua52/lfunc.h new file mode 100644 index 00000000000..e236a717c65 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lfunc.h @@ -0,0 +1,33 @@ +/* +** $Id: lfunc.h,v 2.8 2012/05/08 13:53:33 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/texk/web2c/luatexdir/lua52/lgc.c b/Build/source/texk/web2c/luatexdir/lua52/lgc.c new file mode 100644 index 00000000000..06f972a7254 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lgc.c @@ -0,0 +1,1205 @@ +/* +** $Id: lgc.c,v 2.133 2012/05/31 21:28:59 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 200 + + + + +/* +** standard negative debt for GC; a reasonable "time" to wait before +** starting a new cycle +*/ +#define stddebtest(g,e) (-cast(l_mem, (e)/PAUSEADJ) * g->gcpause) +#define stddebt(g) stddebtest(g, gettotalbytes(g)) + + +/* +** '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(isgenerational(g) || g->gcstate != GCSpause); + lua_assert(gch(o)->tt != LUA_TTABLE); + if (keepinvariant(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 markroot (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 (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) * 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) { + StkId o = th->stack; + if (o == NULL) + return 1; /* stack not completely built yet */ + for (; o < th->top; o++) + 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); + } + return sizeof(lua_State) + sizeof(TValue) * th->stacksize; +} + + +/* +** 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 (!keepinvariant(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 (!(all || iswhite(curr))) /* 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 (!keepinvariant(g)) /* not keeping invariant? */ + makewhite(g, o); /* "sweep" object */ + else + resetoldbit(o); /* see MOVE OLD rule */ + } +} + +/* }====================================================== */ + + +/* +** {====================================================== +** GC control +** ======================================================= +*/ + + +#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 sweeped. +*/ +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 = -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: { + g->GCmemtrav = 0; /* start to count memory traversed */ + if (!isgenerational(g)) + markroot(g); /* start a new collection */ + /* in any case, root must be marked at this point */ + lua_assert(!iswhite(obj2gco(g->mainthread)) + && !iswhite(gcvalue(&g->l_registry))); + 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); + 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 cycle */ + luaC_runtilstate(L, bitmask(GCSpause)); + if (gettotalbytes(g) > (estimate / 100) * g->gcmajorinc) + g->GCestimate = 0; /* signal for a major collection */ + } + luaE_setdebt(g, stddebt(g)); +} + + +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 */ + /* 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) + debt = stddebtest(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; + int someblack = keepinvariant(g); + 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 (someblack) { /* 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)); + /* run entire collector */ + luaC_runtilstate(L, ~bitmask(GCSpause)); + luaC_runtilstate(L, bitmask(GCSpause)); + if (origkind == KGC_GEN) { /* generational mode? */ + /* generational mode must always start in propagate phase */ + luaC_runtilstate(L, bitmask(GCSpropagate)); + } + g->gckind = origkind; + luaE_setdebt(g, stddebt(g)); + if (!isemergency) /* do not run finalizers during emergency GC */ + callallpendingfinalizers(L, 1); +} + +/* }====================================================== */ + + diff --git a/Build/source/texk/web2c/luatexdir/lua52/lgc.h b/Build/source/texk/web2c/luatexdir/lua52/lgc.h new file mode 100644 index 00000000000..bdd5cce6cf8 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lgc.h @@ -0,0 +1,147 @@ +/* +** $Id: lgc.h,v 2.56 2012/05/23 15:43:14 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) + +/* +** macro 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) + + +/* +** 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/texk/web2c/luatexdir/lua52/linit.c b/Build/source/texk/web2c/luatexdir/lua52/linit.c new file mode 100644 index 00000000000..8d3aa6576fc --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/linit.c @@ -0,0 +1,67 @@ +/* +** $Id: linit.c,v 1.32 2011/04/08 19:17:36 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/texk/web2c/luatexdir/lua52/liolib.c b/Build/source/texk/web2c/luatexdir/lua52/liolib.c new file mode 100644 index 00000000000..adcf99cb13c --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/liolib.c @@ -0,0 +1,653 @@ +/* +** $Id: liolib.c,v 2.108 2011/11/25 12:50:03 roberto Exp $ +** Standard I/O (and system) library +** See Copyright Notice in lua.h +*/ + + +/* +** This must come before the inclusion of 'stdio.h'. +*/ +#include <c-auto.h> + + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define liolib_c +#define LUA_LIB + +#include "lua.h" + +#include "lauxlib.h" +#include "lualib.h" + + + +/* +** {====================================================== +** 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/lua_ftell: configuration for longer offsets +** ======================================================= +*/ + +#if !defined(lua_fseek) /* { */ + +#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 + +#else + +#define l_fseek(f,o,w) fseek(f,o,w) +#define l_ftell(f) ftell(f) +#define l_seeknum long + +#endif + +#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); + int i = 0; + /* check whether 'mode' matches '[rwa]%+?b?' */ + if (!(mode[i] != '\0' && strchr("rwa", mode[i++]) != NULL && + (mode[i] != '+' || ++i) && /* skip if char is '+' */ + (mode[i] != 'b' || ++i) && /* skip if char is 'b' */ + (mode[i] == '\0'))) + return luaL_error(L, "invalid mode " LUA_QS + " (should match " LUA_QL("[rwa]%%+?b?") ")", 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/texk/web2c/luatexdir/lua52/llex.c b/Build/source/texk/web2c/luatexdir/lua52/llex.c new file mode 100644 index 00000000000..c4d8c65b6ff --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/llex.c @@ -0,0 +1,527 @@ +/* +** $Id: llex.c,v 2.61 2012/01/23 23:05:51 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) { + 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) + return luaO_pushfstring(ls->L, LUA_QS, s); + else + 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); + } + 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) + luaX_syntaxerror(ls, "chunk has too many lines"); +} + + +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 hexa 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/texk/web2c/luatexdir/lua52/llex.h b/Build/source/texk/web2c/luatexdir/lua52/llex.h new file mode 100644 index 00000000000..9ca8a29948c --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/llex.h @@ -0,0 +1,78 @@ +/* +** $Id: llex.h,v 1.72 2011/11/30 12:43:51 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/texk/web2c/luatexdir/lua52/llimits.h b/Build/source/texk/web2c/luatexdir/lua52/llimits.h new file mode 100644 index 00000000000..fc9de1a11be --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/llimits.h @@ -0,0 +1,309 @@ +/* +** $Id: llimits.h,v 1.99 2012/05/28 20:32:28 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) /* { */ +/* 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) +#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 = 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/texk/web2c/luatexdir/lua52/lmathlib.c b/Build/source/texk/web2c/luatexdir/lua52/lmathlib.c new file mode 100644 index 00000000000..c3c605e86b2 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lmathlib.c @@ -0,0 +1,283 @@ +/* +** $Id: lmathlib.c,v 1.81 2012/05/18 17:47:53 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" + + +/* macro 'l_tg' allows the addition of an 'l' or 'f' to all math operations */ +#if !defined(l_tg) +#define l_tg(x) (x) +#endif + + +#undef PI +#define PI (l_tg(3.1415926535897932384626433832795)) +#define RADIANS_PER_DEGREE (PI/180.0) + + + +static int math_abs (lua_State *L) { + lua_pushnumber(L, l_tg(fabs)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_sin (lua_State *L) { + lua_pushnumber(L, l_tg(sin)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_sinh (lua_State *L) { + lua_pushnumber(L, l_tg(sinh)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_cos (lua_State *L) { + lua_pushnumber(L, l_tg(cos)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_cosh (lua_State *L) { + lua_pushnumber(L, l_tg(cosh)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_tan (lua_State *L) { + lua_pushnumber(L, l_tg(tan)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_tanh (lua_State *L) { + lua_pushnumber(L, l_tg(tanh)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_asin (lua_State *L) { + lua_pushnumber(L, l_tg(asin)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_acos (lua_State *L) { + lua_pushnumber(L, l_tg(acos)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_atan (lua_State *L) { + lua_pushnumber(L, l_tg(atan)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_atan2 (lua_State *L) { + lua_pushnumber(L, l_tg(atan2)(luaL_checknumber(L, 1), + luaL_checknumber(L, 2))); + return 1; +} + +static int math_ceil (lua_State *L) { + lua_pushnumber(L, l_tg(ceil)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_floor (lua_State *L) { + lua_pushnumber(L, l_tg(floor)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_fmod (lua_State *L) { + lua_pushnumber(L, l_tg(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_tg(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_tg(sqrt)(luaL_checknumber(L, 1))); + return 1; +} + +static int math_pow (lua_State *L) { + lua_pushnumber(L, l_tg(pow)(luaL_checknumber(L, 1), + luaL_checknumber(L, 2))); + 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_tg(log)(x); + else { + lua_Number base = luaL_checknumber(L, 2); + if (base == 10.0) res = l_tg(log10)(x); + else res = l_tg(log)(x)/l_tg(log)(base); + } + lua_pushnumber(L, res); + return 1; +} + +#if defined(LUA_COMPAT_LOG10) +static int math_log10 (lua_State *L) { + lua_pushnumber(L, l_tg(log10)(luaL_checknumber(L, 1))); + return 1; +} +#endif + +static int math_exp (lua_State *L) { + lua_pushnumber(L, l_tg(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_tg(frexp)(luaL_checknumber(L, 1), &e)); + lua_pushinteger(L, e); + return 2; +} + +static int math_ldexp (lua_State *L) { + lua_pushnumber(L, l_tg(ldexp)(luaL_checknumber(L, 1), + luaL_checkint(L, 2))); + 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, 1.0 <= u, 1, "interval is empty"); + lua_pushnumber(L, l_tg(floor)(r*u) + 1.0); /* int in [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_tg(floor)(r*(u-l+1)) + l); /* int in [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/texk/web2c/luatexdir/lua52/lmem.c b/Build/source/texk/web2c/luatexdir/lua52/lmem.c new file mode 100644 index 00000000000..3f88496e09d --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lmem.c @@ -0,0 +1,99 @@ +/* +** $Id: lmem.c,v 1.84 2012/05/23 15:41:53 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/texk/web2c/luatexdir/lua52/lmem.h b/Build/source/texk/web2c/luatexdir/lua52/lmem.h new file mode 100644 index 00000000000..535dfe07f3d --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lmem.h @@ -0,0 +1,50 @@ +/* +** $Id: lmem.h,v 1.38 2011/12/02 13:26:54 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" + + +#define luaM_reallocv(L,b,on,n,e) \ + ((cast(size_t, (n)+1) > MAX_SIZET/(e)) ? /* +1 to avoid warnings */ \ + (luaM_toobig(L), (void *)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/texk/web2c/luatexdir/lua52/loadlib.c b/Build/source/texk/web2c/luatexdir/lua52/loadlib.c new file mode 100644 index 00000000000..a9959277bd8 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/loadlib.c @@ -0,0 +1,725 @@ +/* +** $Id: loadlib.c,v 1.111 2012/05/30 12:33:44 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/texk/web2c/luatexdir/lua52/lobject.c b/Build/source/texk/web2c/luatexdir/lua52/lobject.c new file mode 100644 index 00000000000..cf0f75446d3 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lobject.c @@ -0,0 +1,289 @@ +/* +** $Id: lobject.c,v 2.55 2011/11/30 19:30:16 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 * 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 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)); + incr_top(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; + setsvalue2s(L, L->top, luaS_newlstr(L, fmt, e-fmt)); + incr_top(L); + 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))); + incr_top(L); + break; + } + case 'f': { + setnvalue(L->top, cast_num(va_arg(argp, l_uacNumber))); + incr_top(L); + 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; + } + 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/texk/web2c/luatexdir/lua52/lobject.h b/Build/source/texk/web2c/luatexdir/lua52/lobject.h new file mode 100644 index 00000000000..ca75a028c20 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lobject.h @@ -0,0 +1,610 @@ +/* +** $Id: lobject.h,v 2.70 2012/05/11 14:10:50 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 */ + + +/* +** LUA_TSTRING variants */ +#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 changenvalue(o,x) check_exp(ttisnumber(o), num_(o)=(x)) + +#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 */ + struct Table *metatable; + TValue *array; /* array part */ + Node *node; + Node *lastfree; /* any free position is before this position */ + GCObject *gclist; + int sizearray; /* size of `array' array */ +} 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/texk/web2c/luatexdir/lua52/lopcodes.c b/Build/source/texk/web2c/luatexdir/lua52/lopcodes.c new file mode 100644 index 00000000000..ef73692754e --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lopcodes.c @@ -0,0 +1,107 @@ +/* +** $Id: lopcodes.c,v 1.49 2012/05/14 13:34:18 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/texk/web2c/luatexdir/lua52/lopcodes.h b/Build/source/texk/web2c/luatexdir/lua52/lopcodes.h new file mode 100644 index 00000000000..07d2b3f39aa --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lopcodes.h @@ -0,0 +1,288 @@ +/* +** $Id: lopcodes.h,v 1.142 2011/07/15 12:50:29 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 */ +}; + +LUAI_DDEC 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)) + + +LUAI_DDEC 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/texk/web2c/luatexdir/lua52/loslib.c b/Build/source/texk/web2c/luatexdir/lua52/loslib.c new file mode 100644 index 00000000000..489755b6f5e --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/loslib.c @@ -0,0 +1,323 @@ +/* +** $Id: loslib.c,v 1.39 2012/05/23 15:37:09 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, fromname); +} + + +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/texk/web2c/luatexdir/lua52/lparser.c b/Build/source/texk/web2c/luatexdir/lua52/lparser.c new file mode 100644 index 00000000000..b3eb3ca9231 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lparser.c @@ -0,0 +1,1635 @@ +/* +** $Id: lparser.c,v 2.128 2012/05/20 14:51:23 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=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 +*/ +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 stack top (for GC) */ +} + + +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/texk/web2c/luatexdir/lua52/lparser.h b/Build/source/texk/web2c/luatexdir/lua52/lparser.h new file mode 100644 index 00000000000..301167d4f5c --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lparser.h @@ -0,0 +1,119 @@ +/* +** $Id: lparser.h,v 1.70 2012/05/08 13:53:33 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/texk/web2c/luatexdir/lua52/lstate.c b/Build/source/texk/web2c/luatexdir/lua52/lstate.c new file mode 100644 index 00000000000..3c00c285596 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lstate.c @@ -0,0 +1,322 @@ +/* +** $Id: lstate.c,v 2.98 2012/05/30 12:33:44 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(size_t, 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 */ +} + + +/* +** 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 */ + 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 = lua_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; + } + else + luai_userstateopen(L); + return L; +} + + +LUA_API void lua_close (lua_State *L) { + L = G(L)->mainthread; /* only the main thread can be closed */ + lua_lock(L); + luai_userstateclose(L); + close_state(L); +} + + diff --git a/Build/source/texk/web2c/luatexdir/lua52/lstate.h b/Build/source/texk/web2c/luatexdir/lua52/lstate.h new file mode 100644 index 00000000000..29f810ba04a --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lstate.h @@ -0,0 +1,228 @@ +/* +** $Id: lstate.h,v 2.81 2012/06/08 15:14:04 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; /* how much to wait for a major GC (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/texk/web2c/luatexdir/lua52/lstring.c b/Build/source/texk/web2c/luatexdir/lua52/lstring.c new file mode 100644 index 00000000000..8b959f19d08 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lstring.c @@ -0,0 +1,185 @@ +/* +** $Id: lstring.c,v 2.24 2012/05/11 14:14:42 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 ^ 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 && + ts->tsv.len == l && + (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/texk/web2c/luatexdir/lua52/lstring.h b/Build/source/texk/web2c/luatexdir/lua52/lstring.h new file mode 100644 index 00000000000..d312ff3d2b1 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lstring.h @@ -0,0 +1,46 @@ +/* +** $Id: lstring.h,v 1.49 2012/02/01 21:57:15 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/texk/web2c/luatexdir/lua52/lstrlib.c b/Build/source/texk/web2c/luatexdir/lua52/lstrlib.c new file mode 100644 index 00000000000..e13098bb6ea --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lstrlib.c @@ -0,0 +1,972 @@ +/* +** $Id: lstrlib.c,v 1.176 2012/05/23 15:37:09 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 { + 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; + + +#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 (int c, const char *p, const char *ep) { + 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 *match (MatchState *ms, const char *s, const char *p); + + +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 ((s+i)<ms->src_end && singlematch(uchar(*(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 (s<ms->src_end && singlematch(uchar(*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) { + init: /* using goto's to optimize tail recursion */ + if (p == ms->p_end) /* end of pattern? */ + return s; /* match succeeded */ + switch (*p) { + case '(': { /* start capture */ + if (*(p+1) == ')') /* position capture? */ + return start_capture(ms, s, p+2, CAP_POSITION); + else + return start_capture(ms, s, p+1, CAP_UNFINISHED); + } + case ')': { /* end capture */ + return end_capture(ms, s, p+1); + } + case '$': { + if ((p+1) == ms->p_end) /* is the `$' the last char in pattern? */ + return (s == ms->src_end) ? s : NULL; /* check end of string */ + else goto dflt; + } + 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) return NULL; + p+=4; goto init; /* else return match(ms, s, p+4); */ + } + 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)) return NULL; + p=ep; goto init; /* else return match(ms, s, ep); */ + } + 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) return NULL; + p+=2; goto init; /* else return match(ms, s, p+2) */ + } + default: goto dflt; + } + } + default: dflt: { /* pattern class plus optional suffix */ + const char *ep = classend(ms, p); /* points to what is next */ + int m = s < ms->src_end && singlematch(uchar(*s), p, ep); + switch (*ep) { + case '?': { /* optional */ + const char *res; + if (m && ((res=match(ms, s+1, ep+1)) != NULL)) + return res; + p=ep+1; goto init; /* else return match(ms, s, ep+1); */ + } + case '*': { /* 0 or more repetitions */ + return max_expand(ms, s, p, ep); + } + case '+': { /* 1 or more repetitions */ + return (m ? max_expand(ms, s+1, p, ep) : NULL); + } + case '-': { /* 0 or more repetitions (minimum) */ + return min_expand(ms, s, p, ep); + } + default: { + if (!m) return NULL; + s++; p=ep; goto init; /* else return match(ms, s+1, ep); */ + } + } + } + } +} + + + +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.src_init = s; + ms.src_end = s + ls; + ms.p_end = p + lp; + do { + const char *res; + ms.level = 0; + 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.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; + 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.src_init = src; + ms.src_end = src+srcl; + ms.p_end = p + lp; + while (n < max_s) { + const char *e; + ms.level = 0; + 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/texk/web2c/luatexdir/lua52/ltable.c b/Build/source/texk/web2c/luatexdir/lua52/ltable.c new file mode 100644 index 00000000000..ffa5ecb36ad --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ltable.c @@ -0,0 +1,588 @@ +/* +** $Id: ltable.c,v 2.71 2012/05/23 15:37:09 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_TNIL: return luaO_nilobject; + case LUA_TSHRSTR: return luaH_getstr(t, rawtsvalue(key)); + case LUA_TNUMBER: { + int k; + lua_Number n = nvalue(key); + lua_number2int(k, n); + if (luai_numeq(cast_num(k), nvalue(key))) /* 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/texk/web2c/luatexdir/lua52/ltable.h b/Build/source/texk/web2c/luatexdir/lua52/ltable.h new file mode 100644 index 00000000000..2f6f5c2dc85 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ltable.h @@ -0,0 +1,41 @@ +/* +** $Id: ltable.h,v 2.16 2011/08/17 20:26:47 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) + + +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/texk/web2c/luatexdir/lua52/ltablib.c b/Build/source/texk/web2c/luatexdir/lua52/ltablib.c new file mode 100644 index 00000000000..a52add03da7 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ltablib.c @@ -0,0 +1,283 @@ +/* +** $Id: ltablib.c,v 1.63 2011/11/28 17:26:30 roberto Exp $ +** Library for Table Manipulation +** See Copyright Notice in lua.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 */ + if (pos > e) e = pos; /* `grow' array if necessary */ + 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 e = aux_getn(L, 1); + int pos = luaL_optint(L, 2, e); + if (!(1 <= pos && pos <= e)) /* position is outside bounds? */ + return 0; /* nothing to remove */ + lua_rawgeti(L, 1, pos); /* result = t[pos] */ + for ( ;pos<e; pos++) { + lua_rawgeti(L, 1, pos+1); + lua_rawseti(L, 1, pos); /* t[pos] = t[pos+1] */ + } + lua_pushnil(L); + lua_rawseti(L, 1, e); /* t[e] = 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, 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 = e - i + 1; /* number of elements */ + if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */ + 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/texk/web2c/luatexdir/lua52/ltm.c b/Build/source/texk/web2c/luatexdir/lua52/ltm.c new file mode 100644 index 00000000000..e70006dd7f6 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ltm.c @@ -0,0 +1,77 @@ +/* +** $Id: ltm.c,v 2.14 2011/06/02 19:31:40 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/texk/web2c/luatexdir/lua52/ltm.h b/Build/source/texk/web2c/luatexdir/lua52/ltm.h new file mode 100644 index 00000000000..89bdc19a1e1 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/ltm.h @@ -0,0 +1,57 @@ +/* +** $Id: ltm.h,v 2.11 2011/02/28 17:32:10 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/texk/web2c/luatexdir/lua52/lua.c b/Build/source/texk/web2c/luatexdir/lua52/lua.c new file mode 100644 index 00000000000..7614c7030b6 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lua.c @@ -0,0 +1,496 @@ +/* +** $Id: lua.c,v 1.205 2012/05/23 15:37:09 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); + lua_pop(L, 1); /* remove global */ + 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); + if (lua_readline(L, b, prmt) == 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/texk/web2c/luatexdir/lua52/lua.h b/Build/source/texk/web2c/luatexdir/lua52/lua.h new file mode 100644 index 00000000000..a3a3a70c69a --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lua.h @@ -0,0 +1,439 @@ +/* +** $Id: lua.h,v 1.283 2012/04/20 13:18:26 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 "1" + +#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) 1994-2012 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 + + + +/* +** 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) 1994-2012 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/texk/web2c/luatexdir/lua52/lua.hpp b/Build/source/texk/web2c/luatexdir/lua52/lua.hpp new file mode 100644 index 00000000000..ec417f59469 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lua.hpp @@ -0,0 +1,9 @@ +// 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/texk/web2c/luatexdir/lua52/luac.c b/Build/source/texk/web2c/luatexdir/lua52/luac.c new file mode 100644 index 00000000000..5081836d4cb --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/luac.c @@ -0,0 +1,432 @@ +/* +** $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 1.68 2011/09/30 10:21:20 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 (ttype(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/texk/web2c/luatexdir/lua52/luaconf.h b/Build/source/texk/web2c/luatexdir/lua52/luaconf.h new file mode 100644 index 00000000000..e6c09616e07 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/luaconf.h @@ -0,0 +1,548 @@ +/* +** $Id: luaconf.h,v 1.172 2012/05/11 14:14:42 roberto Exp $ +** Configuration file for Lua +** See Copyright Notice in lua.h +*/ + + +#ifndef lconfig_h +#define lconfig_h + +#include <c-auto.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 hexa 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 hexa 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 an 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 to consume 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 */ + + +/* +@@ lua_str2number converts a decimal numeric string to a number. +@@ lua_strx2number converts an hexadecimal numeric string to a number. +** In C99, 'strtod' do 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) - floor((a)/(b))*(b)) +#define luai_numpow(L,a,b) (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_CORE) && \ + 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. +** +@@ MS_ASMTRICK 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 MS_ASMTRICK +#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/texk/web2c/luatexdir/lua52/lualib.h b/Build/source/texk/web2c/luatexdir/lua52/lualib.h new file mode 100644 index 00000000000..9fd126bf78e --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lualib.h @@ -0,0 +1,55 @@ +/* +** $Id: lualib.h,v 1.43 2011/12/08 12:11:37 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/texk/web2c/luatexdir/lua52/lundump.c b/Build/source/texk/web2c/luatexdir/lua52/lundump.c new file mode 100644 index 00000000000..54de011a45d --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lundump.c @@ -0,0 +1,258 @@ +/* +** $Id: lundump.c,v 2.22 2012/05/08 13:53:33 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/texk/web2c/luatexdir/lua52/lundump.h b/Build/source/texk/web2c/luatexdir/lua52/lundump.h new file mode 100644 index 00000000000..2b8accecb8a --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lundump.h @@ -0,0 +1,28 @@ +/* +** $Id: lundump.h,v 1.39 2012/05/08 13:53:33 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 */ +LUAI_FUNC 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/texk/web2c/luatexdir/lua52/lvm.c b/Build/source/texk/web2c/luatexdir/lua52/lvm.c new file mode 100644 index 00000000000..b77eac26d0f --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lvm.c @@ -0,0 +1,868 @@ +/* +** $Id: lvm.c,v 2.152 2012/06/08 15:14:04 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 yieled */ + 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 */ + luaD_checkstack(L, 0); + /* 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/texk/web2c/luatexdir/lua52/lvm.h b/Build/source/texk/web2c/luatexdir/lua52/lvm.h new file mode 100644 index 00000000000..ec358224060 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lvm.h @@ -0,0 +1,45 @@ +/* +** $Id: lvm.h,v 2.17 2011/05/31 18:27:56 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(t1,t2) \ + (ttisequal(t1,t2) && luaV_equalobj_(NULL,t1,t2)) + + +/* 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/texk/web2c/luatexdir/lua52/lzio.c b/Build/source/texk/web2c/luatexdir/lua52/lzio.c new file mode 100644 index 00000000000..8b77054e0b8 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lzio.c @@ -0,0 +1,76 @@ +/* +** $Id: lzio.c,v 1.35 2012/05/14 13:34:18 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/texk/web2c/luatexdir/lua52/lzio.h b/Build/source/texk/web2c/luatexdir/lua52/lzio.h new file mode 100644 index 00000000000..08682301e8a --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/lua52/lzio.h @@ -0,0 +1,65 @@ +/* +** $Id: lzio.h,v 1.26 2011/07/15 12:48:03 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 |