summaryrefslogtreecommitdiff
path: root/Build/source/texk/web2c/luatexdir/lua/luainit.c
blob: 5b38f314644d5ce854d13d581d950b77fc0403a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
#include <sys/stat.h>

#include "luatex-api.h"
#include <ptexlib.h>

#include <luatexdir/luatexextra.h>

#ifndef program_invocation_name
/*  char *program_invocation_name = NULL; */
#endif

extern void parse_src_specials_option (char *n) ;

const_string LUATEX_IHELP[] = {
    "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.",
    "  Any remaining COMMANDS are processed as luatex input, after TEXNAME is read.",
    "",
    "  Alternatively, if the first non-option argument begins with a backslash,",
    "  interpret all non-option arguments as a line of luatex input.",
    "",
    "  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.",
    "",
    "  --lua=FILE               the lua initialization file",
    "  --safer                  disable some easily exploitable lua commands",
    "  --fmt=FORMAT             load the format file FORMAT",
    "  --ini                    be initex, for dumping formats",
    "  --help                   display this help and exit",
    "  --version                output version information 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",
    NULL
};

static void
prepare_cmdline(lua_State * L, char **argv, int argc, int zero_offset)
{
    int i;
    luaL_checkstack(L, argc + 3, "too many arguments to script");
    lua_createtable(L, 0, 0);
    for (i = 0; i < argc; i++) {
	  lua_pushstring(L, argv[i]);
	  lua_rawseti(L, -2, (i-zero_offset));
    }
    lua_setglobal(L, "arg");
    return;
}

extern string dump_name;
extern const_string c_job_name;
extern boolean srcspecialsoption;
extern char *last_source_name;
extern int last_lineno;

string input_name = NULL;

static string user_progname = NULL;

extern char *ptexbanner;
extern int program_name_set; /* in lkpselib.c */

/* for topenin() */
extern char **argv;
extern int argc;

char *startup_filename = NULL;
int lua_only = 0;
int lua_offset = 0;

int safer_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'.  */
#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},
      { "safer",                     0, &safer_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 },
      { "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 },
      { "debug-format",              0, &debug_format_file, 1 },
      { "src-specials",              2, 0, 0 },
      { "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 },
{0, 0, 0, 0}
};

static void
parse_options(int argc, char **argv)
{
  int g;			/* `getopt' return code.  */
  int option_index;
  char *firstfile = NULL;
  opterr = 0;			/* dont whine */
  for (;;) {
	g = getopt_long_only(argc, argv, "+", long_options, &option_index);
	
	if (g == -1)		/* End of arguments, exit the loop.  */
	    break;
	if (g == '?')		/* Unknown option.  */
	  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 ;
	  
	} 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")) {
      unsigned len = strlen (optarg);
      if (len < 256) {
        output_comment = optarg;
      } else {
        WARNING2 ("Comment truncated to 255 characters from %d. (%s)",
                  len, optarg);
        output_comment = (string)xmalloc (256);
        strncpy (output_comment, optarg, 255);
        output_comment[255] = 0;
      }

    } else if (ARGUMENT_IS ("src-specials")) {
       last_source_name = xstrdup("");
       /* Option `--src" without any value means `auto' mode. */
       if (optarg == NULL) {
         insertsrcspecialeverypar = true;
         insertsrcspecialauto = true;
         srcspecialsoption = true;
         srcspecialsp = true;
       } else {
          parse_src_specials_option(optarg);
       }

    } 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 @d's in *.ch */
      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("help")) {
	  usagehelp(LUATEX_IHELP, BUG_ADDRESS);
	  
	} else if (ARGUMENT_IS("version")) {
	  char *versions;
	  initversionstring(&versions); 
          print_version_banner();

	  puts(
"\n\nLuaTeX merges and builds upon (parts of) the code from these projects:\n\n"
"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"
"xpdf      by Derek Noonberg (partial)\n"
"fontforge by George Williams (partial)\n\n"
"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"
"via the 'oriental tex' project, the TeX User Groups, and donations.\n\n"
"The LuaTeX team is Hans Hagen, Hartmut Henkel, Taco Hoekwater.\n\n"
"There is NO warranty. Redistribution of this software is covered by\n"
"the terms of the GNU General Public License, version 2. For more\n"
"information about these matters, see the file named COPYING and\n"
"the LuaTeX source.\n\n"
"Copyright 2008 Taco Hoekwater, the LuaTeX Team.\n");

	  puts(versions);
          uexit(0);	  
	}
  }
  /* attempt to find dump_name */
  if (argv[optind] && argv[optind][0] == '&') {
	dump_name = strdup(argv[optind] + 1);
  } else if (argv[optind] && argv[optind][0] != '\\') {
	if (argv[optind][0] == '*') {
	  input_name = strdup(argv[optind] + 1);
	} else {
	  firstfile = strdup(argv[optind]);
	  if (lua_only) {
		startup_filename = firstfile;
	  }  else {
		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) ||
			(strstr(argv[0],"luatexlua") != NULL) ||
            (strstr(argv[0],"texlua") != NULL)) {
		  startup_filename = firstfile;
		  lua_only = 1;
		  lua_offset = optind;		  
		  luainit = 1 ;
		} else {
		  input_name = firstfile;
		}
	  }
	}
  } else {
	if ((strstr(argv[0],"luatexlua") != NULL)||
        (strstr(argv[0],"texlua") != NULL)) {
	  lua_only = 1;
	  luainit = 1 ;
	}
  }
}

/* test for readability */
#define is_readable(a) (stat(a,&finfo)==0) && S_ISREG(finfo.st_mode) &&  \
  (f=fopen(a,"r")) != NULL && !fclose(f)

char *
find_filename(char *name, 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 = strdup(getenv(envkey));
	    if (*(dirname + strlen(dirname) - 1) == '/') {
		*(dirname + strlen(dirname) - 1) = 0;
	    }
	    filename = xmalloc(strlen(dirname) + strlen(name) + 2);
	    filename = concat3(dirname, "/", name);
	    if (is_readable(filename)) {
		xfree(dirname);
		return filename;
	    }
	    xfree(filename);
	}
    }
    return NULL;
}


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) {
	  user_progname = input_name;
	} else {
	  if(!startup_filename) {
		if (!dump_name) {
		  dump_name = strdup(argv[0]);
		  user_progname = dump_name;
		}
	  }
	}
  }
  if (!user_progname) {
	  fprintf(stdout,
			  "kpathsea mode needs a --progname or --fmt switch\n");
	  exit(1);
  } 

  kpse_set_program_enabled (kpse_fmt_format, MAKE_TEX_FMT_BY_DEFAULT,
                            kpse_src_compile);

  kpse_set_program_name(argv[0], user_progname);
  program_name_set=1;

  /* Needs program_name set.  */
  init_shell_escape ();
}

void
fix_dumpname (void) {
  int dist;
  if (dump_name) {
	/* adjust array for Pascal and provide extension, if needed */
	dist = strlen(dump_name) - strlen(DUMP_EXT);
	if (strstr(dump_name, DUMP_EXT) == dump_name + dist)
	  DUMP_VAR = concat(" ", dump_name);
	else
	  DUMP_VAR = concat3(" ", dump_name, DUMP_EXT);
	DUMP_LENGTH_VAR = strlen(DUMP_VAR + 1);
  } else {
	/* For dump_name to be NULL is a bug.  */
	if (!ini_version)
	  abort();
  }
}

void
lua_initialize(int ac, char **av)
{

  char *given_file = NULL;
  int kpse_init;
  int tex_table_id;
  int pdf_table_id;
  int token_table_id;
  int node_table_id;
  /* Save to pass along to topenin.  */
  argc = ac;
  argv = av;
	
  ptexbanner = BANNER;
  program_invocation_name = argv[0];

  /* be 'luac' */
  if (argc>1 &&
      (STREQ(argv[0],"texluac") ||
       STREQ(argv[1],"--luaconly") ||
       STREQ(argv[1],"--luac"))) {
    exit(luac_main(ac,av));
  }

  /* Must be initialized before options are parsed.  */
  interactionoption = 4;
  dump_name = NULL;
  /* parse commandline */
  parse_options(ac, av);

  /* 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(0);
	  
  prepare_cmdline(Luas[0], argv, argc, lua_offset);	/* collect arguments */

  if (startup_filename != NULL) {
    given_file = xstrdup(startup_filename);
    startup_filename = find_filename(startup_filename, "LUATEXDIR");
  }
  /* now run the file */
  if (startup_filename != NULL) {
    /* hide the 'tex' and 'pdf' table */
    tex_table_id = hide_lua_table(Luas[0], "tex");
    token_table_id = hide_lua_table(Luas[0], "token");
    node_table_id = hide_lua_table(Luas[0], "node");
    pdf_table_id = hide_lua_table(Luas[0], "pdf");

    if (luaL_loadfile(Luas[0], startup_filename)) {
      fprintf(stdout, "%s\n",lua_tostring(Luas[0], -1));
      exit(1);
    }
    if (lua_pcall(Luas[0], 0, 0, 0)) {
      fprintf(stdout, "%s\n",lua_tostring(Luas[0], -1));
      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) || ((!input_name) && (!dump_name))) {
      exit(0);
    }
    /* unhide the 'tex' and 'pdf' table */
    unhide_lua_table(Luas[0], "tex", tex_table_id);
    unhide_lua_table(Luas[0], "pdf", pdf_table_id);
    unhide_lua_table(Luas[0], "token", token_table_id);
    unhide_lua_table(Luas[0], "node", node_table_id);
	  
    /* kpse_init */
    kpse_init = -1;
    get_lua_boolean("texconfig", "kpse_init", &kpse_init);

    if (kpse_init != 0) {
      init_kpse();
    }
    /* prohibit_file_trace (boolean) */
    tracefilenames = 1;
    get_lua_boolean("texconfig", "trace_file_names", &tracefilenames);
	  
    /* src_special_xx */
    insertsrcspecialauto = insertsrcspecialeverypar =
      insertsrcspecialeveryparend = insertsrcspecialeverycr =
      insertsrcspecialeverymath = insertsrcspecialeveryhbox =
      insertsrcspecialeveryvbox = insertsrcspecialeverydisplay =
      false;
    get_lua_boolean("texconfig", "src_special_auto",
		    &insertsrcspecialauto);
    get_lua_boolean("texconfig", "src_special_everypar",
		    &insertsrcspecialeverypar);
    get_lua_boolean("texconfig", "src_special_everyparend",
		    &insertsrcspecialeveryparend);
    get_lua_boolean("texconfig", "src_special_everycr",
		    &insertsrcspecialeverycr);
    get_lua_boolean("texconfig", "src_special_everymath",
		    &insertsrcspecialeverymath);
    get_lua_boolean("texconfig", "src_special_everyhbox",
		    &insertsrcspecialeveryhbox);
    get_lua_boolean("texconfig", "src_special_everyvbox",
		    &insertsrcspecialeveryvbox);
    get_lua_boolean("texconfig", "src_special_everydisplay",
		    &insertsrcspecialeverydisplay);

    srcspecialsp = insertsrcspecialauto | insertsrcspecialeverypar |
      insertsrcspecialeveryparend | insertsrcspecialeverycr |
      insertsrcspecialeverymath | insertsrcspecialeveryhbox |
      insertsrcspecialeveryvbox | insertsrcspecialeverydisplay;

    /* 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);
	  
    fix_dumpname();
  } else {
    if (luainit) {
      if (given_file) {
	fprintf(stdout, "%s file %s not found\n", (lua_only ? "Script" : "Configuration"), given_file);
      } else {
	fprintf(stdout, "No %s file given\n", (lua_only ? "script" : "configuration"));
      }
      exit(1);
    } else {
      /* init */
      init_kpse();
      fix_dumpname();
    }
  }
}