src/getargs.c

   1 /* Parse command line arguments for Bison.
   2
   3    Copyright (C) 1984, 1986, 1989, 1992, 2000-2013 Free Software
   4    Foundation, Inc.
   5
   6    This file is part of Bison, the GNU Compiler Compiler.
   7
   8    This program is free software: you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation, either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #include <config.h>
  22 #include "system.h"
  23 #include "output.h"
  24
  25 #include <argmatch.h>
  26 #include <c-strcase.h>
  27 #include <configmake.h>
  28 #include <error.h>
  29 #include <getopt.h>
  30 #include <progname.h>
  31
  32 #include "complain.h"
  33 #include "files.h"
  34 #include "getargs.h"
  35 #include "muscle-tab.h"
  36 #include "quote.h"
  37 #include "uniqstr.h"
  38
  39 bool defines_flag;
  40 bool graph_flag;
  41 bool xml_flag;
  42 bool no_lines_flag;
  43 bool token_table_flag;
  44 bool yacc_flag; /* for -y */
  45
  46 bool nondeterministic_parser = false;
  47 bool glr_parser = false;
  48
  49 int feature_flag = feature_caret;
  50 int report_flag = report_none;
  51 int trace_flag = trace_none;
  52
  53 static struct bison_language const valid_languages[] = {
  54   { "c", "c-skel.m4", ".c", ".h", true },
  55   { "c++", "c++-skel.m4", ".cc", ".hh", true },
  56   { "java", "java-skel.m4", ".java", ".java", false },
  57   { "", "", "", "", false }
  58 };
  59
  60 int skeleton_prio = default_prio;
  61 const char *skeleton = NULL;
  62 int language_prio = default_prio;
  63 struct bison_language const *language = &valid_languages[0];
  64 const char *include = NULL;
  65
  66 /** Decode an option's key.
  67  *
  68  *  \param option   option being decoded.
  69  *  \param keys     array of valid subarguments.
  70  *  \param values   array of corresponding (int) values.
  71  *  \param all      the all value.
  72  *  \param flags    the flags to update
  73  *  \param arg      the subarguments to decode.
  74  *                  If null, then activate all the flags.
  75  *  \param no       length of the potential "no-" prefix.
  76  *                  Can be 0 or 3. If 3, negate the action of the subargument.
  77  *
  78  *  If VALUE != 0 then KEY sets flags and no-KEY clears them.
  79  *  If VALUE == 0 then KEY clears all flags from \c all and no-KEY sets all
  80  *  flags from \c all.  Thus no-none = all and no-all = none.
  81  */
  82 static void
  83 flag_argmatch (const char *option,
  84                const char * const keys[], const int values[],
  85                int all, int *flags, char *arg, size_t no)
  86 {
  87   int value = 0;
  88   value = XARGMATCH (option, arg + no, keys, values);
  89
  90   if (value)
  91     {
  92       if (no)
  93         *flags &= ~value;
  94       else
  95         *flags |= value;
  96     }
  97   else
  98     {
  99       if (no)
 100         *flags |= all;
 101       else
 102         *flags &= ~all;
 103     }
 104 }
 105
 106 /** Decode an option's set of keys.
 107  *
 108  *  \param option   option being decoded.
 109  *  \param keys     array of valid subarguments.
 110  *  \param values   array of corresponding (int) values.
 111  *  \param all      the all value.
 112  *  \param flags    the flags to update
 113  *  \param args     comma separated list of effective subarguments to decode.
 114  *                  If 0, then activate all the flags.
 115  */
 116 static void
 117 flags_argmatch (const char *option,
 118                 const char * const keys[], const int values[],
 119                 int all, int *flags, char *args)
 120 {
 121   if (args)
 122     for (args = strtok (args, ","); args; args = strtok (NULL, ","))
 123       {
 124         size_t no = STRPREFIX_LIT ("no-", args) ? 3 : 0;
 125         flag_argmatch (option, keys,
 126                        values, all, flags, args, no);
 127       }
 128   else
 129     *flags |= all;
 130 }
 131
 132
 133 /** Decode a set of sub arguments.
 134  *
 135  *  \param FlagName  the flag familly to update.
 136  *  \param Args      the effective sub arguments to decode.
 137  *  \param All       the "all" value.
 138  *
 139  *  \arg FlagName_args   the list of keys.
 140  *  \arg FlagName_types  the list of values.
 141  *  \arg FlagName_flag   the flag to update.
 142  */
 143 #define FLAGS_ARGMATCH(FlagName, Args, All)                             \
 144   flags_argmatch ("--" #FlagName, FlagName ## _args, FlagName ## _types, \
 145                   All, &FlagName ## _flag, Args)
 146
 147
 148 /*----------------------.
 149 | --report's handling.  |
 150 `----------------------*/
 151
 152 static const char * const report_args[] =
 153 {
 154   /* In a series of synonyms, present the most meaningful first, so
 155      that argmatch_valid be more readable.  */
 156   "none",
 157   "state", "states",
 158   "itemset", "itemsets",
 159   "lookahead", "lookaheads", "look-ahead",
 160   "solved",
 161   "all",
 162   0
 163 };
 164
 165 static const int report_types[] =
 166 {
 167   report_none,
 168   report_states, report_states,
 169   report_states | report_itemsets, report_states | report_itemsets,
 170   report_states | report_lookahead_tokens,
 171   report_states | report_lookahead_tokens,
 172   report_states | report_lookahead_tokens,
 173   report_states | report_solved_conflicts,
 174   report_all
 175 };
 176
 177 ARGMATCH_VERIFY (report_args, report_types);
 178
 179
 180 /*---------------------.
 181 | --trace's handling.  |
 182 `---------------------*/
 183
 184 static const char * const trace_args[] =
 185 {
 186   "none       - no traces",
 187   "scan       - grammar scanner traces",
 188   "parse      - grammar parser traces",
 189   "automaton  - construction of the automaton",
 190   "bitsets    - use of bitsets",
 191   "grammar    - reading, reducing the grammar",
 192   "resource   - memory consumption (where available)",
 193   "sets       - grammar sets: firsts, nullable etc.",
 194   "muscles    - m4 definitions passed to the skeleton",
 195   "tools      - m4 invocation",
 196   "m4         - m4 traces",
 197   "skeleton   - skeleton postprocessing",
 198   "time       - time consumption",
 199   "ielr       - IELR conversion",
 200   "all        - all of the above",
 201   0
 202 };
 203
 204 static const int trace_types[] =
 205 {
 206   trace_none,
 207   trace_scan,
 208   trace_parse,
 209   trace_automaton,
 210   trace_bitsets,
 211   trace_grammar,
 212   trace_resource,
 213   trace_sets,
 214   trace_muscles,
 215   trace_tools,
 216   trace_m4,
 217   trace_skeleton,
 218   trace_time,
 219   trace_ielr,
 220   trace_all
 221 };
 222
 223 ARGMATCH_VERIFY (trace_args, trace_types);
 224
 225
 226 /*------------------------.
 227 | --warnings's handling.  |
 228 `------------------------*/
 229
 230 /** Decode a single argument from -W.
 231  *
 232  *  \param arg      the subarguments to decode.
 233  *                  If null, then activate all the flags.
 234  *  \param no       length of the potential "no-" prefix.
 235  *                  Can be 0 or 3. If 3, negate the action of the subargument.
 236  *  \param err      length of a potential "error=".
 237  *                  Can be 0 or 6. If 6, treat the subargument as a CATEGORY.
 238  *
 239  *  If VALUE != 0 then KEY sets flags and no-KEY clears them.
 240  *  If VALUE == 0 then KEY clears all flags from \c all and no-KEY sets all
 241  *  flags from \c all.  Thus no-none = all and no-all = none.
 242  */
 243 static void
 244 warning_argmatch (char const *arg, size_t no, size_t err)
 245 {
 246   int value = XARGMATCH ("--warning", arg + no + err,
 247                          warnings_args, warnings_types);
 248
 249   /* -Wnone == -Wno-all, and -Wno-none == -Wall.  */
 250   if (!value)
 251     {
 252       value = Wall;
 253       no = !no;
 254     }
 255
 256   if (no)
 257     {
 258       size_t b;
 259       for (b = 0; b < warnings_size; ++b)
 260         if (value & 1 << b)
 261           {
 262             if (err)
 263               {
 264                 /* -Wno-error=foo: if foo enabled as an error,
 265                    make it a warning.  */
 266                 if (warnings_flag[b] == severity_error)
 267                   warnings_flag[b] = severity_warning;
 268               }
 269             else
 270               /* -Wno-foo.  */
 271               warnings_flag[b] = severity_disabled;
 272           }
 273     }
 274   else
 275     {
 276       size_t b;
 277       for (b = 0; b < warnings_size; ++b)
 278         if (value & 1 << b)
 279           /* -Wfoo and -Werror=foo. */
 280           warnings_flag[b] = err ? severity_error : severity_warning;
 281     }
 282 }
 283
 284 /** Decode a comma-separated list of arguments from -W.
 285  *
 286  *  \param args     comma separated list of effective subarguments to decode.
 287  *                  If 0, then activate all the flags.
 288  */
 289 static void
 290 warnings_argmatch (char *args)
 291 {
 292   if (args)
 293     for (args = strtok (args, ","); args; args = strtok (NULL, ","))
 294       if (STREQ (args, "error"))
 295         warnings_are_errors = true;
 296       else if (STREQ (args, "no-error"))
 297         {
 298           warnings_are_errors = false;
 299           warning_argmatch ("no-error=all", 3, 6);
 300         }
 301       else
 302         {
 303           size_t no = STRPREFIX_LIT ("no-", args) ? 3 : 0;
 304           size_t err = STRPREFIX_LIT ("error=", args + no) ? 6 : 0;
 305
 306           warning_argmatch (args, no, err);
 307         }
 308   else
 309     warning_argmatch ("all", 0, 0);
 310 }
 311
 312 const char * const warnings_args[] =
 313 {
 314   "none",
 315   "midrule-values",
 316   "yacc",
 317   "conflicts-sr",
 318   "conflicts-rr",
 319   "deprecated",
 320   "precedence",
 321   "other",
 322   "all",
 323   "error",
 324   0
 325 };
 326
 327 const int warnings_types[] =
 328 {
 329   Wnone,
 330   Wmidrule_values,
 331   Wyacc,
 332   Wconflicts_sr,
 333   Wconflicts_rr,
 334   Wdeprecated,
 335   Wprecedence,
 336   Wother,
 337   Wall,
 338   Werror
 339 };
 340
 341 ARGMATCH_VERIFY (warnings_args, warnings_types);
 342
 343 /*-----------------------.
 344 | --feature's handling.  |
 345 `-----------------------*/
 346
 347 static const char * const feature_args[] =
 348 {
 349   "none",
 350   "caret", "diagnostics-show-caret",
 351   "all",
 352   0
 353 };
 354
 355 static const int feature_types[] =
 356 {
 357   feature_none,
 358   feature_caret, feature_caret,
 359   feature_all
 360 };
 361
 362 ARGMATCH_VERIFY (feature_args, feature_types);
 363
 364 /*-------------------------------------------.
 365 | Display the help message and exit STATUS.  |
 366 `-------------------------------------------*/
 367
 368 static void usage (int) ATTRIBUTE_NORETURN;
 369
 370 static void
 371 usage (int status)
 372 {
 373   if (status != 0)
 374     fprintf (stderr, _("Try `%s --help' for more information.\n"),
 375              program_name);
 376   else
 377     {
 378       /* For ../build-aux/cross-options.pl to work, use the format:
 379                 ^  -S, --long[=ARGS] (whitespace)
 380          A --long option is required.
 381          Otherwise, add exceptions to ../build-aux/cross-options.pl.  */
 382
 383       printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
 384       fputs (_("\
 385 Generate a deterministic LR or generalized LR (GLR) parser employing\n\
 386 LALR(1), IELR(1), or canonical LR(1) parser tables.  IELR(1) and\n\
 387 canonical LR(1) support is experimental.\n\
 388 \n\
 389 "), stdout);
 390
 391       fputs (_("\
 392 Mandatory arguments to long options are mandatory for short options too.\n\
 393 "), stdout);
 394       fputs (_("\
 395 The same is true for optional arguments.\n\
 396 "), stdout);
 397
 398       fputs (_("\
 399 \n\
 400 Operation modes:\n\
 401   -h, --help                 display this help and exit\n\
 402   -V, --version              output version information and exit\n\
 403       --print-localedir      output directory containing locale-dependent data\n\
 404       --print-datadir        output directory containing skeletons and XSLT\n\
 405   -y, --yacc                 emulate POSIX Yacc\n\
 406   -W, --warnings[=CATEGORY]  report the warnings falling in CATEGORY\n\
 407   -f, --feature[=FEATURE]    activate miscellaneous features\n\
 408 \n\
 409 "), stdout);
 410
 411       fputs (_("\
 412 Parser:\n\
 413   -L, --language=LANGUAGE          specify the output programming language\n\
 414   -S, --skeleton=FILE              specify the skeleton to use\n\
 415   -t, --debug                      instrument the parser for tracing\n\
 416                                    same as `-Dparse.trace'\n\
 417       --locations                  enable location support\n\
 418   -D, --define=NAME[=VALUE]        similar to '%define NAME \"VALUE\"'\n\
 419   -F, --force-define=NAME[=VALUE]  override '%define NAME \"VALUE\"'\n\
 420   -p, --name-prefix=PREFIX         prepend PREFIX to the external symbols\n\
 421                                    deprecated by '-Dapi.prefix=PREFIX'\n\
 422   -l, --no-lines                   don't generate '#line' directives\n\
 423   -k, --token-table                include a table of token names\n\
 424 "), stdout);
 425       putc ('\n', stdout);
 426
 427       /* Keep -d and --defines separate so that ../build-aux/cross-options.pl
 428        * won't assume that -d also takes an argument.  */
 429       fputs (_("\
 430 Output:\n\
 431       --defines[=FILE]       also produce a header file\n\
 432   -d                         likewise but cannot specify FILE (for POSIX Yacc)\n\
 433   -r, --report=THINGS        also produce details on the automaton\n\
 434       --report-file=FILE     write report to FILE\n\
 435   -v, --verbose              same as `--report=state'\n\
 436   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\
 437   -o, --output=FILE          leave output to FILE\n\
 438   -g, --graph[=FILE]         also output a graph of the automaton\n\
 439   -x, --xml[=FILE]           also output an XML report of the automaton\n\
 440                              (the XML schema is experimental)\n\
 441 "), stdout);
 442       putc ('\n', stdout);
 443
 444       fputs (_("\
 445 Warning categories include:\n\
 446   `midrule-values'    unset or unused midrule values\n\
 447   `yacc'              incompatibilities with POSIX Yacc\n\
 448   `conflicts-sr'      S/R conflicts (enabled by default)\n\
 449   `conflicts-rr'      R/R conflicts (enabled by default)\n\
 450   `deprecated'        obsolete constructs\n\
 451   `precedence'        useless precedence and associativity\n\
 452   `other'             all other warnings (enabled by default)\n\
 453   `all'               all the warnings\n\
 454   `no-CATEGORY'       turn off warnings in CATEGORY\n\
 455   `none'              turn off all the warnings\n\
 456   `error[=CATEGORY]'  treat warnings as errors\n\
 457 "), stdout);
 458       putc ('\n', stdout);
 459
 460       fputs (_("\
 461 THINGS is a list of comma separated words that can include:\n\
 462   `state'        describe the states\n\
 463   `itemset'      complete the core item sets with their closure\n\
 464   `lookahead'    explicitly associate lookahead tokens to items\n\
 465   `solved'       describe shift/reduce conflicts solving\n\
 466   `all'          include all the above information\n\
 467   `none'         disable the report\n\
 468 "), stdout);
 469       putc ('\n', stdout);
 470
 471       fputs (_("\
 472 FEATURE is a list of comma separated words that can include:\n\
 473   `caret'        show errors with carets\n\
 474   `all'          all of the above\n\
 475   `none'         disable all of the above\n\
 476   "), stdout);
 477
 478       putc ('\n', stdout);
 479       printf (_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
 480       printf (_("%s home page: <%s>.\n"), PACKAGE_NAME, PACKAGE_URL);
 481       fputs (_("General help using GNU software: "
 482                "<http://www.gnu.org/gethelp/>.\n"),
 483              stdout);
 484       /* Don't output this redundant message for English locales.
 485          Note we still output for 'C' so that it gets included in the
 486          man page.  */
 487       const char *lc_messages = setlocale (LC_MESSAGES, NULL);
 488       if (lc_messages && !STREQ (lc_messages, "en_"))
 489         /* TRANSLATORS: Replace LANG_CODE in this URL with your language
 490            code <http://translationproject.org/team/LANG_CODE.html> to
 491            form one of the URLs at http://translationproject.org/team/.
 492            Otherwise, replace the entire URL with your translation team's
 493            email address.  */
 494         fputs (_("Report translation bugs to "
 495                  "<http://translationproject.org/team/>.\n"), stdout);
 496       fputs (_("For complete documentation, run: info bison.\n"), stdout);
 497     }
 498
 499   exit (status);
 500 }
 501
 502
 503 /*------------------------------.
 504 | Display the version message.  |
 505 `------------------------------*/
 506
 507 static void
 508 version (void)
 509 {
 510   /* Some efforts were made to ease the translators' task, please
 511      continue.  */
 512   printf (_("bison (GNU Bison) %s"), VERSION);
 513   putc ('\n', stdout);
 514   fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout);
 515   putc ('\n', stdout);
 516
 517   fprintf (stdout,
 518            _("Copyright (C) %d Free Software Foundation, Inc.\n"),
 519            PACKAGE_COPYRIGHT_YEAR);
 520
 521   fputs (_("\
 522 This is free software; see the source for copying conditions.  There is NO\n\
 523 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 524 "),
 525          stdout);
 526 }
 527
 528
 529 /*-------------------------------------.
 530 | --skeleton and --language handling.  |
 531 `--------------------------------------*/
 532
 533 void
 534 skeleton_arg (char const *arg, int prio, location loc)
 535 {
 536   if (prio < skeleton_prio)
 537     {
 538       skeleton_prio = prio;
 539       skeleton = arg;
 540     }
 541   else if (prio == skeleton_prio)
 542     complain (&loc, complaint,
 543               _("multiple skeleton declarations are invalid"));
 544 }
 545
 546 void
 547 language_argmatch (char const *arg, int prio, location loc)
 548 {
 549   char const *msg;
 550
 551   if (prio < language_prio)
 552     {
 553       int i;
 554       for (i = 0; valid_languages[i].language[0]; i++)
 555         if (c_strcasecmp (arg, valid_languages[i].language) == 0)
 556           {
 557             language_prio = prio;
 558             language = &valid_languages[i];
 559             return;
 560           }
 561       msg = _("%s: invalid language");
 562     }
 563   else if (language_prio == prio)
 564     msg = _("multiple language declarations are invalid");
 565   else
 566     return;
 567
 568   complain (&loc, complaint, msg, quotearg_colon (arg));
 569 }
 570
 571 /*----------------------.
 572 | Process the options.  |
 573 `----------------------*/
 574
 575 /* Shorts options.
 576    Should be computed from long_options.  */
 577 static char const short_options[] =
 578   "D:"
 579   "F:"
 580   "L:"
 581   "S:"
 582   "T::"
 583   "V"
 584   "W::"
 585   "b:"
 586   "d"
 587   "f::"
 588   "e"
 589   "g::"
 590   "h"
 591   "k"
 592   "l"
 593   "n"
 594   "o:"
 595   "p:"
 596   "r:"
 597   "t"
 598   "v"
 599   "x::"
 600   "y"
 601   ;
 602
 603 /* Values for long options that do not have single-letter equivalents.  */
 604 enum
 605 {
 606   LOCATIONS_OPTION = CHAR_MAX + 1,
 607   PRINT_LOCALEDIR_OPTION,
 608   PRINT_DATADIR_OPTION,
 609   REPORT_FILE_OPTION
 610 };
 611
 612 static struct option const long_options[] =
 613 {
 614   /* Operation modes. */
 615   { "help",            no_argument,       0,   'h' },
 616   { "version",         no_argument,       0,   'V' },
 617   { "print-localedir", no_argument,       0,   PRINT_LOCALEDIR_OPTION },
 618   { "print-datadir",   no_argument,       0,   PRINT_DATADIR_OPTION   },
 619   { "warnings",        optional_argument, 0,   'W' },
 620
 621   /* Parser. */
 622   { "name-prefix",   required_argument,   0,   'p' },
 623   { "include",       required_argument,   0,   'I' },
 624
 625   /* Output. */
 626   { "file-prefix", required_argument,   0,   'b' },
 627   { "output",      required_argument,   0,   'o' },
 628   { "output-file", required_argument,   0,   'o' },
 629   { "graph",       optional_argument,   0,   'g' },
 630   { "xml",         optional_argument,   0,   'x' },
 631   { "report",      required_argument,   0,   'r' },
 632   { "report-file", required_argument,   0,   REPORT_FILE_OPTION },
 633   { "verbose",     no_argument,         0,   'v' },
 634
 635   /* Hidden. */
 636   { "trace",         optional_argument,   0,     'T' },
 637
 638   /* Output.  */
 639   { "defines",     optional_argument,   0,   'd' },
 640   { "feature",     optional_argument,   0,   'f' },
 641
 642   /* Operation modes.  */
 643   { "fixed-output-files", no_argument,  0,   'y' },
 644   { "yacc",               no_argument,  0,   'y' },
 645
 646   /* Parser.  */
 647   { "debug",          no_argument,               0,   't' },
 648   { "define",         required_argument,         0,   'D' },
 649   { "force-define",   required_argument,         0,   'F' },
 650   { "locations",      no_argument,               0, LOCATIONS_OPTION },
 651   { "no-lines",       no_argument,               0,   'l' },
 652   { "raw",            no_argument,               0,     0 },
 653   { "skeleton",       required_argument,         0,   'S' },
 654   { "language",       required_argument,         0,   'L' },
 655   { "token-table",    no_argument,               0,   'k' },
 656
 657   {0, 0, 0, 0}
 658 };
 659
 660 /* Under DOS, there is no difference on the case.  This can be
 661    troublesome when looking for `.tab' etc.  */
 662 #ifdef MSDOS
 663 # define AS_FILE_NAME(File) (strlwr (File), (File))
 664 #else
 665 # define AS_FILE_NAME(File) (File)
 666 #endif
 667
 668 /* Build a location for the current command line argument. */
 669 static
 670 location
 671 command_line_location (void)
 672 {
 673   location res;
 674   /* "<command line>" is used in GCC's messages about -D. */
 675   boundary_set (&res.start, uniqstr_new ("<command line>"), optind - 1, -1);
 676   res.end = res.start;
 677   return res;
 678 }
 679
 680
 681 void
 682 getargs (int argc, char *argv[])
 683 {
 684   int c;
 685
 686   while ((c = getopt_long (argc, argv, short_options, long_options, NULL))
 687          != -1)
 688     switch (c)
 689       {
 690         /* ASCII Sorting for short options (i.e., upper case then
 691            lower case), and then long-only options.  */
 692
 693       case 0:
 694         /* Certain long options cause getopt_long to return 0.  */
 695         break;
 696
 697       case 'D': /* -DNAME[=VALUE]. */
 698       case 'F': /* -FNAME[=VALUE]. */
 699         {
 700           char* name = optarg;
 701           char* value = strchr (optarg, '=');
 702           if (value)
 703             *value++ = 0;
 704           muscle_percent_define_insert (name, command_line_location (),
 705                                         value ? value : "",
 706                                         c == 'D' ? MUSCLE_PERCENT_DEFINE_D
 707                                                  : MUSCLE_PERCENT_DEFINE_F);
 708         }
 709         break;
 710
 711       case 'I':
 712         include = AS_FILE_NAME (optarg);
 713         break;
 714
 715       case 'L':
 716         language_argmatch (optarg, command_line_prio,
 717                            command_line_location ());
 718         break;
 719
 720       case 'S':
 721         skeleton_arg (AS_FILE_NAME (optarg), command_line_prio,
 722                       command_line_location ());
 723         break;
 724
 725       case 'T':
 726         FLAGS_ARGMATCH (trace, optarg, trace_all);
 727         break;
 728
 729       case 'V':
 730         version ();
 731         exit (EXIT_SUCCESS);
 732
 733       case 'f':
 734         FLAGS_ARGMATCH (feature, optarg, feature_all);
 735         break;
 736
 737       case 'W':
 738         warnings_argmatch (optarg);
 739         break;
 740
 741       case 'b':
 742         spec_file_prefix = AS_FILE_NAME (optarg);
 743         break;
 744
 745       case 'd':
 746         /* Here, the -d and --defines options are differentiated.  */
 747         defines_flag = true;
 748         if (optarg)
 749           {
 750             free (spec_defines_file);
 751             spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
 752           }
 753         break;
 754
 755       case 'g':
 756         graph_flag = true;
 757         if (optarg)
 758           {
 759             free (spec_graph_file);
 760             spec_graph_file = xstrdup (AS_FILE_NAME (optarg));
 761           }
 762         break;
 763
 764       case 'h':
 765         usage (EXIT_SUCCESS);
 766
 767       case 'k':
 768         token_table_flag = true;
 769         break;
 770
 771       case 'l':
 772         no_lines_flag = true;
 773         break;
 774
 775       case 'o':
 776         spec_outfile = AS_FILE_NAME (optarg);
 777         break;
 778
 779       case 'p':
 780         spec_name_prefix = optarg;
 781         break;
 782
 783       case 'r':
 784         FLAGS_ARGMATCH (report, optarg, report_all);
 785         break;
 786
 787       case 't':
 788         muscle_percent_define_insert ("parse.trace",
 789                                       command_line_location (), "",
 790                                       MUSCLE_PERCENT_DEFINE_D);
 791         break;
 792
 793       case 'v':
 794         report_flag |= report_states;
 795         break;
 796
 797       case 'x':
 798         xml_flag = true;
 799         if (optarg)
 800           {
 801             free (spec_xml_file);
 802             spec_xml_file = xstrdup (AS_FILE_NAME (optarg));
 803           }
 804         break;
 805
 806       case 'y':
 807         warnings_flag[warning_yacc] = severity_error;
 808         yacc_flag = true;
 809         break;
 810
 811       case LOCATIONS_OPTION:
 812         muscle_percent_define_ensure ("locations",
 813                                       command_line_location (), true);
 814         break;
 815
 816       case PRINT_LOCALEDIR_OPTION:
 817         printf ("%s\n", LOCALEDIR);
 818         exit (EXIT_SUCCESS);
 819
 820       case PRINT_DATADIR_OPTION:
 821         printf ("%s\n", pkgdatadir ());
 822         exit (EXIT_SUCCESS);
 823
 824       case REPORT_FILE_OPTION:
 825         free (spec_verbose_file);
 826         spec_verbose_file = xstrdup (AS_FILE_NAME (optarg));
 827         break;
 828
 829       default:
 830         usage (EXIT_FAILURE);
 831       }
 832
 833   if (argc - optind != 1)
 834     {
 835       if (argc - optind < 1)
 836         error (0, 0, _("%s: missing operand"), quotearg_colon (argv[argc - 1]));
 837       else
 838         error (0, 0, _("extra operand %s"), quote (argv[optind + 1]));
 839       usage (EXIT_FAILURE);
 840     }
 841
 842   current_file = grammar_file = uniqstr_new (argv[optind]);
 843   MUSCLE_INSERT_C_STRING ("file_name", grammar_file);
 844 }
 845
 846 void
 847 tr (char *s, char from, char to)
 848 {
 849   for (; *s; s++)
 850     if (*s == from)
 851       *s = to;
 852 }