% luainit.w % % Copyright 2006-2014 Taco Hoekwater % % This file is part of LuaTeX. % % LuaTeX is free software; you can redistribute it and/or modify it under % the terms of the GNU General Public License as published by the Free % Software Foundation; either version 2 of the License, or (at your % option) any later version. % % LuaTeX is distributed in the hope that it will be useful, but WITHOUT % ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or % FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public % License for more details. % % You should have received a copy of the GNU General Public License along % with LuaTeX; if not, see . @ @c static const char _svn_version[] = "$Id: luainit.w 4956 2014-03-28 12:12:17Z luigi $" "$URL: https://foundry.supelec.fr/svn/luatex/trunk/source/texk/web2c/luatexdir/lua/luainit.w $"; #include "ptexlib.h" #include #include "lua/luatex-api.h" /* internalized strings: see luatex-api.h */ set_make_keys; @ TH: TODO This file is getting a bit messy, but it is not simple to fix unilaterally. Better to wait until Karl has some time (after texlive 2008) so we can synchronize with kpathsea. One problem, for instance, is that I would like to resolve the full executable path. |kpse_set_program_name()| does that, indirectly (by setting SELFAUTOLOC in the environment), but it does much more, making it hard to use for our purpose. In fact, it sets three C variables: |kpse_invocation_name| |kpse_invocation_short_name| |kpse->program_name| and five environment variables: SELFAUTOLOC SELFAUTODIR SELFAUTOPARENT SELFAUTOGRANDPARENT progname @c const_string LUATEX_IHELP[] = { #ifdef LuajitTeX "Usage: luajittex --lua=FILE [OPTION]... [TEXNAME[.tex]] [COMMANDS]", " or: luajittex --lua=FILE [OPTION]... \\FIRST-LINE", " or: luajittex --lua=FILE [OPTION]... &FMT ARGS", " Run LuajitTeX on TEXNAME, usually creating TEXNAME.pdf.", #else "Usage: luatex --lua=FILE [OPTION]... [TEXNAME[.tex]] [COMMANDS]", " or: luatex --lua=FILE [OPTION]... \\FIRST-LINE", " or: luatex --lua=FILE [OPTION]... &FMT ARGS", " Run LuaTeX on TEXNAME, usually creating TEXNAME.pdf.", #endif " Any remaining COMMANDS are processed as luatex input, after TEXNAME is read.", "", " Alternatively, if the first non-option argument begins with a backslash,", #ifdef LuajitTeX " luajittex interprets all non-option arguments as an input line.", #else " luatex interprets all non-option arguments as an input line.", #endif "", " Alternatively, if the first non-option argument begins with a &, the", " next word is taken as the FMT to read, overriding all else. Any", " remaining arguments are processed as above.", "", " If no arguments or options are specified, prompt for input.", "", " The following regular options are understood: ", "", " --8bit ignored, input is assumed to be in UTF-8 encoding", " --credits display credits and exit", " --debug-format enable format debugging", " --default-translate-file= ignored, input is assumed to be in UTF-8 encoding", " --disable-write18 disable \\write18{SHELL COMMAND}", " --draftmode switch on draft mode (generates no output PDF)", " --enable-write18 enable \\write18{SHELL COMMAND}", " --etex ignored, the etex extensions are always active", " --[no-]file-line-error disable/enable file:line:error style messages", " --[no-]file-line-error-style aliases of --[no-]file-line-error", " --fmt=FORMAT load the format file FORMAT", " --halt-on-error stop processing at the first error", " --help display help and exit", #ifdef LuajitTeX " --ini be iniluajittex, for dumping formats", #else " --ini be iniluatex, for dumping formats", #endif " --interaction=STRING set interaction mode (STRING=batchmode/nonstopmode/scrollmode/errorstopmode)", " --jobname=STRING set the job name to STRING", " --kpathsea-debug=NUMBER set path searching debugging flags according to the bits of NUMBER", " --lua=s load and execute a lua initialization script", " --[no-]mktex=FMT disable/enable mktexFMT generation (FMT=tex/tfm)", " --nosocket disable the lua socket library", " --output-comment=STRING use STRING for DVI file comment instead of date (no effect for PDF)", " --output-directory=DIR use existing DIR as the directory to write files in", " --output-format=FORMAT use FORMAT for job output; FORMAT is 'dvi' or 'pdf'", " --[no-]parse-first-line disable/enable parsing of the first line of the input file", " --progname=STRING set the program name to STRING", " --recorder enable filename recorder", " --safer disable easily exploitable lua commands", " --[no-]shell-escape disable/enable \\write18{SHELL COMMAND}", " --shell-restricted restrict \\write18 to a list of commands given in texmf.cnf", " --synctex=NUMBER enable synctex", " --translate-file= ignored, input is assumed to be in UTF-8 encoding", " --version display version and exit", "", "Alternate behaviour models can be obtained by special switches", "", " --luaonly run a lua file, then exit", " --luaconly byte-compile a lua file, then exit", " --luahashchars the bits used by current Lua interpreter for strings hashing", #ifdef LuajitTeX " --jiton turns the JIT compiler on (default off)", " --jithash=STRING choose the hash function for the lua strings (lua51|luajit20: default lua51)", #endif "", "See the reference manual for more information about the startup process.", NULL }; @ The return value will be the directory of the executable, e.g.: \.{c:/TeX/bin} @c static char *ex_selfdir(char *argv0) { #if defined(WIN32) #if defined(__MINGW32__) char path[PATH_MAX], *fp; /* SearchPath() always gives back an absolute directory */ if (SearchPath(NULL, argv0, ".exe", PATH_MAX, path, NULL) == 0) FATAL1("Can't determine where the executable %s is.\n", argv0); /* slashify the dirname */ for (fp = path; fp && *fp; fp++) if (IS_DIR_SEP(*fp)) *fp = DIR_SEP; #else /* __MINGW32__ */ #define PATH_MAX 512 char short_path[PATH_MAX], path[PATH_MAX], *fp; /* SearchPath() always gives back an absolute directory */ if (SearchPath(NULL, argv0, ".exe", PATH_MAX, short_path, &fp) == 0) FATAL1("Can't determine where the executable %s is.\n", argv0); if (getlongpath(path, short_path, sizeof(path)) == 0) { FATAL1("This path points to an invalid file : %s\n", short_path); } #endif /* __MINGW32__ */ return xdirname(path); #else /* WIN32 */ return kpse_selfdir(argv0); #endif } @ @c static void prepare_cmdline(lua_State * L, char **av, int ac, int zero_offset) { int i; char *s; luaL_checkstack(L, ac + 3, "too many arguments to script"); lua_createtable(L, 0, 0); for (i = 0; i < ac; i++) { lua_pushstring(L, av[i]); lua_rawseti(L, -2, (i - zero_offset)); } lua_setglobal(L, "arg"); lua_getglobal(L, "os"); s = ex_selfdir(argv[0]); lua_pushstring(L, s); xfree(s); lua_setfield(L, -2, "selfdir"); return; } @ @c string input_name = NULL; static string user_progname = NULL; char *startup_filename = NULL; int lua_only = 0; int lua_offset = 0; unsigned char show_luahashchars = 0; #ifdef LuajitTeX int luajiton = 0; char *jithash_hashname = NULL; #endif int safer_option = 0; int nosocket_option = 0; @ Reading the options. @ Test whether getopt found an option ``A''. Assumes the option index is in the variable |option_index|, and the option table in a variable |long_options|. @c #define ARGUMENT_IS(a) STREQ (long_options[option_index].name, a) /* SunOS cc can't initialize automatic structs, so make this static. */ static struct option long_options[] = { {"fmt", 1, 0, 0}, {"lua", 1, 0, 0}, {"luaonly", 0, 0, 0}, {"luahashchars", 0, 0, 0}, #ifdef LuajitTeX {"jiton", 0, 0, 0}, {"jithash", 1, 0, 0}, #endif {"safer", 0, &safer_option, 1}, {"nosocket", 0, &nosocket_option, 1}, {"help", 0, 0, 0}, {"ini", 0, &ini_version, 1}, {"interaction", 1, 0, 0}, {"halt-on-error", 0, &haltonerrorp, 1}, {"kpathsea-debug", 1, 0, 0}, {"progname", 1, 0, 0}, {"version", 0, 0, 0}, {"credits", 0, 0, 0}, {"recorder", 0, &recorder_enabled, 1}, {"etex", 0, 0, 0}, {"output-comment", 1, 0, 0}, {"output-directory", 1, 0, 0}, {"draftmode", 0, 0, 0}, {"output-format", 1, 0, 0}, {"shell-escape", 0, &shellenabledp, 1}, {"no-shell-escape", 0, &shellenabledp, -1}, {"enable-write18", 0, &shellenabledp, 1}, {"disable-write18", 0, &shellenabledp, -1}, {"shell-restricted", 0, 0, 0}, {"debug-format", 0, &debug_format_file, 1}, {"file-line-error-style", 0, &filelineerrorstylep, 1}, {"no-file-line-error-style", 0, &filelineerrorstylep, -1}, /* Shorter option names for the above. */ {"file-line-error", 0, &filelineerrorstylep, 1}, {"no-file-line-error", 0, &filelineerrorstylep, -1}, {"jobname", 1, 0, 0}, {"parse-first-line", 0, &parsefirstlinep, 1}, {"no-parse-first-line", 0, &parsefirstlinep, -1}, {"translate-file", 1, 0, 0}, {"default-translate-file", 1, 0, 0}, {"8bit", 0, 0, 0}, {"mktex", 1, 0, 0}, {"no-mktex", 1, 0, 0}, /* Synchronization: just like "interaction" above */ {"synctex", 1, 0, 0}, {0, 0, 0, 0} }; @ @c int lua_numeric_field_by_index(lua_State * L, int name_index, int dflt) { register int i = dflt; lua_rawgeti(L, LUA_REGISTRYINDEX, name_index); /* fetch the stringptr */ lua_rawget(L, -2); if (lua_type(L, -1) == LUA_TNUMBER) { i = lua_roundnumber(L, -1); } lua_pop(L, 1); return i; } @ @c static void parse_options(int ac, char **av) { #ifdef WIN32 /* save argc and argv */ int sargc = argc; char **sargv = argv; #endif int g; /* `getopt' return code. */ int option_index; char *firstfile = NULL; opterr = 0; /* dont whine */ #ifdef LuajitTeX if ((strstr(argv[0], "luajittexlua") != NULL) || (strstr(argv[0], "texluajit") != NULL)) { #else if ((strstr(argv[0], "luatexlua") != NULL) || (strstr(argv[0], "texlua") != NULL)) { #endif lua_only = 1; luainit = 1; } for (;;) { g = getopt_long_only(ac, av, "+", long_options, &option_index); if (g == -1) /* End of arguments, exit the loop. */ break; if (g == '?') { /* Unknown option. */ if (!luainit) fprintf(stderr,"%s: unrecognized option '%s'\n", argv[0], argv[optind-1]); continue; } assert(g == 0); /* We have no short option names. */ if (ARGUMENT_IS("luaonly")) { lua_only = 1; lua_offset = optind; luainit = 1; } else if (ARGUMENT_IS("lua")) { startup_filename = optarg; lua_offset = (optind - 1); luainit = 1; #ifdef LuajitTeX } else if (ARGUMENT_IS("jiton")) { luajiton = 1; } else if (ARGUMENT_IS("jithash")) { size_t len = strlen(optarg); if (len<16) jithash_hashname = optarg; else{ WARNING2("hash name truncated to 15 characters from %d. (%s)", (int) len, optarg); jithash_hashname = (string) xmalloc(16); strncpy(jithash_hashname, optarg, 15); jithash_hashname[15] = 0; } #endif } else if (ARGUMENT_IS("luahashchars")) { show_luahashchars = 1; } else if (ARGUMENT_IS("kpathsea-debug")) { kpathsea_debug |= atoi(optarg); } else if (ARGUMENT_IS("progname")) { user_progname = optarg; } else if (ARGUMENT_IS("jobname")) { c_job_name = optarg; } else if (ARGUMENT_IS("fmt")) { dump_name = optarg; } else if (ARGUMENT_IS("output-directory")) { output_directory = optarg; } else if (ARGUMENT_IS("output-comment")) { size_t len = strlen(optarg); if (len < 256) { output_comment = optarg; } else { WARNING2("Comment truncated to 255 characters from %d. (%s)", (int) len, optarg); output_comment = (string) xmalloc(256); strncpy(output_comment, optarg, 255); output_comment[255] = 0; } } else if (ARGUMENT_IS("shell-restricted")) { shellenabledp = 1; restrictedshell = 1; } else if (ARGUMENT_IS("output-format")) { pdf_output_option = 1; if (strcmp(optarg, "dvi") == 0) { pdf_output_value = 0; } else if (strcmp(optarg, "pdf") == 0) { pdf_output_value = 2; } else { WARNING1("Ignoring unknown value `%s' for --output-format", optarg); pdf_output_option = 0; } } else if (ARGUMENT_IS("draftmode")) { pdf_draftmode_option = 1; pdf_draftmode_value = 1; } else if (ARGUMENT_IS("mktex")) { kpse_maketex_option(optarg, true); } else if (ARGUMENT_IS("no-mktex")) { kpse_maketex_option(optarg, false); } else if (ARGUMENT_IS("interaction")) { /* These numbers match CPP defines */ if (STREQ(optarg, "batchmode")) { interactionoption = 0; } else if (STREQ(optarg, "nonstopmode")) { interactionoption = 1; } else if (STREQ(optarg, "scrollmode")) { interactionoption = 2; } else if (STREQ(optarg, "errorstopmode")) { interactionoption = 3; } else { WARNING1("Ignoring unknown argument `%s' to --interaction", optarg); } } else if (ARGUMENT_IS("synctex")) { /* Synchronize TeXnology: catching the command line option as a long */ synctexoption = (int) strtol(optarg, NULL, 0); } else if (ARGUMENT_IS("help")) { usagehelp(LUATEX_IHELP, BUG_ADDRESS); } else if (ARGUMENT_IS("version")) { print_version_banner(); /* *INDENT-OFF* */ #ifdef LuajitTeX puts("\n\nExecute 'luajittex --credits' for credits and version details.\n\n" #else puts("\n\nExecute 'luatex --credits' for credits and version details.\n\n" #endif "There is NO warranty. Redistribution of this software is covered by\n" "the terms of the GNU General Public License, version 2 or (at your option)\n" "any later version. For more information about these matters, see the file\n" "named COPYING and the LuaTeX source.\n\n" #ifdef LuajitTeX "LuaTeX is Copyright 2014 Taco Hoekwater, the LuaTeX Team.\n" "Libraries and JIT extensions by Luigi Scarso, the LuaTeX SwigLib team.\n"); #else "Copyright 2014 Taco Hoekwater, the LuaTeX Team.\n"); #endif /* *INDENT-ON* */ uexit(0); } else if (ARGUMENT_IS("credits")) { char *versions; initversionstring(&versions); print_version_banner(); /* *INDENT-OFF* */ puts("\n\nThe LuaTeX team is Hans Hagen, Hartmut Henkel, Taco Hoekwater.\n" #ifdef LuajitTex "LuajitTeX merges and builds upon (parts of) the code from these projects:\n\n" #else "LuaTeX merges and builds upon (parts of) the code from these projects:\n\n" #endif "tex by Donald Knuth\n" "etex by Peter Breitenlohner, Phil Taylor and friends\n" "omega by John Plaice and Yannis Haralambous\n" "aleph by Giuseppe Bilotta\n" "pdftex by Han The Thanh and friends\n" "kpathsea by Karl Berry, Olaf Weber and others\n" "lua by Roberto Ierusalimschy, Waldemar Celes,\n" " Luiz Henrique de Figueiredo\n" "metapost by John Hobby, Taco Hoekwater and friends.\n" "poppler by Derek Noonburg, Kristian H\\ogsberg (partial)\n" #ifdef LuajitTeX "fontforge by George Williams (partial)\n" "luajit by Mike Pall\n\n" #else "fontforge by George Williams (partial)\n\n" #endif "Some extensions to lua and additional lua libraries are used, as well as\n" "libraries for graphic inclusion. More details can be found in the source.\n" "Code development was sponsored by a grant from Colorado State University\n" #ifdef LuajitTeX "via the 'oriental tex' project, the TeX User Groups, and donations.\n" "The additional libraries and the LuaJIT extensions are provided by the LuaTeX SwigLib project.\n"); #else "via the 'oriental tex' project, the TeX User Groups, and donations.\n"); #endif /* *INDENT-ON* */ puts(versions); uexit(0); } } /* attempt to find |input_name| / |dump_name| */ if (lua_only) { if (argv[optind]) { startup_filename = xstrdup(argv[optind]); lua_offset = optind; } } else if (argv[optind] && argv[optind][0] == '&') { dump_name = xstrdup(argv[optind] + 1); } else if (argv[optind] && argv[optind][0] != '\\') { if (argv[optind][0] == '*') { input_name = xstrdup(argv[optind] + 1); } else { firstfile = xstrdup(argv[optind]); if ((strstr(firstfile, ".lua") == firstfile + strlen(firstfile) - 4) || (strstr(firstfile, ".luc") == firstfile + strlen(firstfile) - 4) || (strstr(firstfile, ".LUA") == firstfile + strlen(firstfile) - 4) || (strstr(firstfile, ".LUC") == firstfile + strlen(firstfile) - 4)) { if (startup_filename == NULL) { startup_filename = firstfile; lua_offset = optind; lua_only = 1; luainit = 1; } } else { input_name = firstfile; } } #ifdef WIN32 } else if (sargv[sargc-1] && sargv[sargc-1][0] != '-' && sargv[sargc-1][0] != '\\') { if (sargv[sargc-1][0] == '&') dump_name = xstrdup(sargv[sargc-1] + 1); else { char *p; if (sargv[sargc-1][0] == '*') input_name = xstrdup(sargv[sargc-1] + 1); else input_name = xstrdup(sargv[sargc-1]); sargv[sargc-1] = normalize_quotes(input_name, "argument"); /* Same as input_name = (char *)xbasename(input_name); but without cast const => non-const. */ input_name += xbasename(input_name) - input_name; p = strrchr(input_name, '.'); if (p != NULL && strcasecmp(p, ".tex") == 0) *p = '\0'; if (!c_job_name) c_job_name = normalize_quotes(input_name, "jobname"); } if (safer_option) /* --safer implies --nosocket */ nosocket_option = 1; return; #endif } if (safer_option) /* --safer implies --nosocket */ nosocket_option = 1; /* Finalize the input filename. */ if (input_name != NULL) { argv[optind] = normalize_quotes(input_name, "argument"); } } @ test for readability @c #define is_readable(a) (stat(a,&finfo)==0) && S_ISREG(finfo.st_mode) && \ (f=fopen(a,"r")) != NULL && !fclose(f) @ @c static char *find_filename(char *name, const char *envkey) { struct stat finfo; char *dirname = NULL; char *filename = NULL; FILE *f; if (is_readable(name)) { return name; } else { dirname = getenv(envkey); if ((dirname != NULL) && strlen(dirname)) { dirname = xstrdup(getenv(envkey)); if (*(dirname + strlen(dirname) - 1) == '/') { *(dirname + strlen(dirname) - 1) = 0; } filename = xmalloc((unsigned) (strlen(dirname) + strlen(name) + 2)); filename = concat3(dirname, "/", name); if (is_readable(filename)) { xfree(dirname); return filename; } xfree(filename); } } return NULL; } @ @c static void init_kpse(void) { if (!user_progname) { user_progname = dump_name; } else if (!dump_name) { dump_name = user_progname; } if (!user_progname) { if (ini_version) { if (input_name) { char *p = input_name + strlen(input_name) - 1; while (p >= input_name) { if (IS_DIR_SEP (*p)) { p++; input_name = p; break; } p--; } user_progname = remove_suffix (input_name); } if (!user_progname) { user_progname = kpse_program_basename(argv[0]); } } else { if (!dump_name) { dump_name = kpse_program_basename(argv[0]); } user_progname = dump_name; } } kpse_set_program_enabled(kpse_fmt_format, MAKE_TEX_FMT_BY_DEFAULT, kpse_src_compile); kpse_set_program_name(argv[0], user_progname); init_shell_escape(); /* set up 'restrictedshell' */ program_name_set = 1; } @ @c static void fix_dumpname(void) { int dist; if (dump_name) { /* adjust array for Pascal and provide extension, if needed */ dist = (int) (strlen(dump_name) - strlen(DUMP_EXT)); if (strstr(dump_name, DUMP_EXT) == dump_name + dist) TEX_format_default = dump_name; else TEX_format_default = concat(dump_name, DUMP_EXT); } else { /* For |dump_name| to be NULL is a bug. */ if (!ini_version) abort(); } } @ lua require patch @ Auxiliary function for kpse search @c static const char *luatex_kpse_find_aux(lua_State *L, const char *name, kpse_file_format_type format, const char *errname) { const char *filename; const char *altname; altname = luaL_gsub(L, name, ".", "/"); /* Lua convention */ filename = kpse_find_file(altname, format, false); if (filename == NULL) { filename = kpse_find_file(name, format, false); } if (filename == NULL) { lua_pushfstring(L, "\n\t[kpse %s searcher] file not found: " LUA_QS, errname, name); } return filename; } @ The lua search function. When kpathsea is not initialized, then it runs the normal lua function that is saved in the registry, otherwise it uses kpathsea. two registry ref variables are needed: one for the actual lua function, the other for its environment . @c static int lua_loader_function = 0; static int luatex_kpse_lua_find(lua_State * L) { const char *filename; const char *name; name = luaL_checkstring(L, 1); if (program_name_set == 0) { lua_rawgeti(L, LUA_REGISTRYINDEX, lua_loader_function); lua_pushvalue(L, -2); lua_call(L, 1, 1); return 1; } filename = luatex_kpse_find_aux(L, name, kpse_lua_format, "lua"); if (filename == NULL) return 1; /* library not found in this path */ if (luaL_loadfile(L, filename) != 0) { luaL_error(L, "error loading module %s from file %s:\n\t%s", lua_tostring(L, 1), filename, lua_tostring(L, -1)); } return 1; /* library loaded successfully */ } @ @c static int clua_loader_function = 0; extern int searcher_C_luatex (lua_State *L, const char *name, const char *filename); static int luatex_kpse_clua_find(lua_State * L) { const char *filename; const char *name; if (safer_option) { lua_pushliteral(L, "\n\t[C searcher disabled in safer mode]"); return 1; /* library not found in this path */ } name = luaL_checkstring(L, 1); if (program_name_set == 0) { lua_rawgeti(L, LUA_REGISTRYINDEX, clua_loader_function); lua_pushvalue(L, -2); lua_call(L, 1, 1); return 1; } else { const char *path_saved; char *prefix, *postfix, *p, *total; char *extensionless; char *temp_name; int j; filename = luatex_kpse_find_aux(L, name, kpse_clua_format, "C"); if (filename == NULL) return 1; /* library not found in this path */ extensionless = strdup(filename); if (!extensionless) return 1; /* allocation failure */ /* Fix Issue 850: replace '.' with LUA_DIRSEP */ temp_name = strdup(name); for(j=0; ; j++){ if ((unsigned char)temp_name[j]=='\0') { break; } if ((unsigned char)temp_name[j]=='.'){ temp_name[j]=LUA_DIRSEP[0]; } } p = strstr(extensionless, temp_name); if (!p) return 1; /* this would be exceedingly weird */ *p = '\0'; prefix = strdup(extensionless); if (!prefix) return 1; /* allocation failure */ postfix = strdup(p+strlen(name)); if (!postfix) return 1; /* allocation failure */ total = malloc(strlen(prefix)+strlen(postfix)+2); if (!total) return 1; /* allocation failure */ snprintf(total,strlen(prefix)+strlen(postfix)+2, "%s?%s", prefix, postfix); /* save package.path */ lua_getglobal(L,"package"); lua_getfield(L,-1,"cpath"); path_saved = lua_tostring(L,-1); lua_pop(L,1); /* set package.path = "?" */ lua_pushstring(L,total); lua_setfield(L,-2,"cpath"); lua_pop(L,1); /* pop "package" */ /* run function */ lua_rawgeti(L, LUA_REGISTRYINDEX, clua_loader_function); lua_pushstring(L, name); lua_call(L, 1, 1); /* restore package.path */ lua_getglobal(L,"package"); lua_pushstring(L,path_saved); lua_setfield(L,-2,"cpath"); lua_pop(L,1); /* pop "package" */ free(extensionless); free(total); free(temp_name); return 1; } } @ Setting up the new search functions. This replaces package.searchers[2] and package.searchers[3] with the functions defined above. @c static void setup_lua_path(lua_State * L) { lua_getglobal(L, "package"); #ifdef LuajitTeX lua_getfield(L, -1, "loaders"); #else lua_getfield(L, -1, "searchers"); #endif lua_rawgeti(L, -1, 2); /* package.searchers[2] */ lua_loader_function = luaL_ref(L, LUA_REGISTRYINDEX); lua_pushcfunction(L, luatex_kpse_lua_find); lua_rawseti(L, -2, 2); /* replace the normal lua loader */ lua_rawgeti(L, -1, 3); /* package.searchers[3] */ clua_loader_function = luaL_ref(L, LUA_REGISTRYINDEX); lua_pushcfunction(L, luatex_kpse_clua_find); lua_rawseti(L, -2, 3); /* replace the normal lua lib loader */ lua_pop(L, 2); /* pop the array and table */ } @ helper variables for the safe keeping of table ids @c int tex_table_id; int pdf_table_id; int token_table_id; int node_table_id; @ @c int l_pack_type_index [PACK_TYPE_SIZE] ; int l_group_code_index [GROUP_CODE_SIZE]; int l_math_style_name_index [MATH_STYLE_NAME_SIZE]; int l_dir_par_index [DIR_PAR_SIZE]; int l_dir_text_index [DIR_TEXT_SIZE]; #if defined(WIN32) || defined(__MINGW32__) || defined(__CYGWIN__) char **suffixlist; # define EXE_SUFFIXES ".com;.exe;.bat;.cmd;.vbs;.vbe;.js;.jse;.wsf;.wsh;.ws;.tcl;.py;.pyw" @ @c static void mk_suffixlist(void) { char **p; char *q, *r, *v; int n; # if defined(__CYGWIN__) v = xstrdup(EXE_SUFFIXES); # else v = (char *) getenv("PATHEXT"); if (v) /* strlwr() exists also in MingW */ v = (char *) strlwr(xstrdup(v)); else v = xstrdup(EXE_SUFFIXES); # endif q = v; n = 0; while ((r = strchr(q, ';')) != NULL) { n++; r++; q = r; } if (*q) n++; suffixlist = (char **) xmalloc((n + 2) * sizeof(char *)); p = suffixlist; *p = xstrdup(".dll"); p++; q = v; while ((r = strchr(q, ';')) != NULL) { *r = '\0'; *p = xstrdup(q); p++; r++; q = r; } if (*q) { *p = xstrdup(q); p++; } *p = NULL; free(v); } #endif @ @c void lua_initialize(int ac, char **av) { char *given_file = NULL; char *banner; int kpse_init; static char LC_CTYPE_C[] = "LC_CTYPE=C"; static char LC_COLLATE_C[] = "LC_COLLATE=C"; static char LC_NUMERIC_C[] = "LC_NUMERIC=C"; #ifdef LuajitTeX static char engine_luatex[] = "engine=luajittex"; #else static char engine_luatex[] = "engine=luatex"; #endif /* Save to pass along to topenin. */ argc = ac; argv = av; if (luatex_svn < 0) { #ifdef LuajitTeX const char *fmt = "This is LuajitTeX, Version %s" WEB2CVERSION; #else const char *fmt = "This is LuaTeX, Version %s" WEB2CVERSION; #endif size_t len; len = strlen(fmt) + strlen(luatex_version_string) ; banner = xmalloc(len); sprintf(banner, fmt, luatex_version_string); } else { #ifdef LuajitTeX const char *fmt = "This is LuajitTeX, Version %s" WEB2CVERSION " (rev %d)"; #else const char *fmt = "This is LuaTeX, Version %s" WEB2CVERSION " (rev %d)"; #endif size_t len; len = strlen(fmt) + strlen(luatex_version_string) + 6; banner = xmalloc(len); sprintf(banner, fmt, luatex_version_string, luatex_svn); } ptexbanner = banner; kpse_invocation_name = kpse_program_basename(argv[0]); /* be 'luac' */ if (argc >1) { #ifdef LuajitTeX if (FILESTRCASEEQ(kpse_invocation_name, "texluajitc")) exit(luac_main(ac, av)); if (STREQ(argv[1], "--luaconly") || STREQ(argv[1], "--luac")) { char *argv1 = xmalloc (strlen ("luajittex") + 1); av[1] = argv1; strcpy (av[1], "luajittex"); exit(luac_main(--ac, ++av)); } #else if (FILESTRCASEEQ(kpse_invocation_name, "texluac")) exit(luac_main(ac, av)); if (STREQ(argv[1], "--luaconly") || STREQ(argv[1], "--luac")) { strcpy(av[1], "luatex"); exit(luac_main(--ac, ++av)); } #endif } #if defined(WIN32) || defined(__MINGW32__) || defined(__CYGWIN__) mk_suffixlist(); #endif /* Must be initialized before options are parsed. */ interactionoption = 4; dump_name = NULL; /* 0 means "disable Synchronize TeXnology". synctexoption is a *.web variable. We initialize it to a weird value to catch the -synctex command line flag At runtime, if synctexoption is not |INT_MAX|, then it contains the command line option provided, otherwise no such option was given by the user. */ #define SYNCTEX_NO_OPTION INT_MAX synctexoption = SYNCTEX_NO_OPTION; /* parse commandline */ parse_options(ac, av); if (lua_only) shellenabledp = true; /* make sure that the locale is 'sane' (for lua) */ putenv(LC_CTYPE_C); putenv(LC_COLLATE_C); putenv(LC_NUMERIC_C); /* this is sometimes needed */ putenv(engine_luatex); luainterpreter(); /* init internalized strings */ set_init_keys; lua_pushstring(Luas,"lua.functions"); lua_newtable(Luas); lua_settable(Luas,LUA_REGISTRYINDEX); /* here start the key definitions */ set_pack_type_index; set_l_group_code_index; set_l_math_style_name_index; set_l_dir_par_index; set_l_dir_text_index; prepare_cmdline(Luas, argv, argc, lua_offset); /* collect arguments */ setup_lua_path(Luas); if (startup_filename != NULL) { given_file = xstrdup(startup_filename); startup_filename = find_filename(startup_filename, "LUATEXDIR"); } /* now run the file */ if (startup_filename != NULL) { char *v1; /* hide the 'tex' and 'pdf' table */ tex_table_id = hide_lua_table(Luas, "tex"); token_table_id = hide_lua_table(Luas, "token"); node_table_id = hide_lua_table(Luas, "node"); pdf_table_id = hide_lua_table(Luas, "pdf"); if (luaL_loadfile(Luas, startup_filename)) { fprintf(stdout, "%s\n", lua_tostring(Luas, -1)); exit(1); } /* */ init_tex_table(Luas); if (lua_pcall(Luas, 0, 0, 0)) { fprintf(stdout, "%s\n", lua_tostring(Luas, -1)); lua_traceback(Luas); exit(1); } /* no filename? quit now! */ if (!input_name) { get_lua_string("texconfig", "jobname", &input_name); } if (!dump_name) { get_lua_string("texconfig", "formatname", &dump_name); } if (lua_only) { if (given_file) free(given_file); /* this is not strictly needed but it pleases valgrind */ lua_close(Luas); exit(0); } /* unhide the 'tex' and 'pdf' table */ unhide_lua_table(Luas, "tex", tex_table_id); unhide_lua_table(Luas, "pdf", pdf_table_id); unhide_lua_table(Luas, "token", token_table_id); unhide_lua_table(Luas, "node", node_table_id); /* |kpse_init| */ kpse_init = -1; get_lua_boolean("texconfig", "kpse_init", &kpse_init); if (kpse_init != 0) { luainit = 0; /* re-enable loading of texmf.cnf values, see luatex.ch */ init_kpse(); } /* |prohibit_file_trace| (boolean) */ tracefilenames = 1; get_lua_boolean("texconfig", "trace_file_names", &tracefilenames); /* |file_line_error| */ filelineerrorstylep = false; get_lua_boolean("texconfig", "file_line_error", &filelineerrorstylep); /* |halt_on_error| */ haltonerrorp = false; get_lua_boolean("texconfig", "halt_on_error", &haltonerrorp); /* |restrictedshell| */ v1 = NULL; get_lua_string("texconfig", "shell_escape", &v1); if (v1) { if (*v1 == 't' || *v1 == 'y' || *v1 == '1') { shellenabledp = 1; } else if (*v1 == 'p') { shellenabledp = 1; restrictedshell = 1; } free(v1); } /* If shell escapes are restricted, get allowed cmds from cnf. */ if (shellenabledp && restrictedshell == 1) { v1 = NULL; get_lua_string("texconfig", "shell_escape_commands", &v1); if (v1) { mk_shellcmdlist(v1); free(v1); } } fix_dumpname(); } else { if (luainit) { if (given_file) { fprintf(stdout, "%s file %s not found\n", (lua_only ? "Script" : "Configuration"), given_file); free(given_file); } else { fprintf(stdout, "No %s file given\n", (lua_only ? "script" : "configuration")); } exit(1); } else { /* init */ init_kpse(); fix_dumpname(); } } } @ @c void check_texconfig_init(void) { if (Luas != NULL) { lua_getglobal(Luas, "texconfig"); if (lua_istable(Luas, -1)) { lua_getfield(Luas, -1, "init"); if (lua_isfunction(Luas, -1)) { int i = lua_pcall(Luas, 0, 0, 0); if (i != 0) { /* Can't be more precise here, called before TeX initialization */ fprintf(stderr, "This went wrong: %s\n", lua_tostring(Luas, -1)); error(); } } } } } @ @c void write_svnversion(char *v) { char *a_head, *n; char *a = xstrdup(v); size_t l = strlen("$Id: luatex.web "); if (a != NULL) { a_head = a; if (strlen(a) > l) a += l; n = a; while (*n != '\0' && *n != ' ') n++; *n = '\0'; fprintf(stdout, " luatex.web >= v%s", a); free(a_head); } }