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 flags    the flags to update
 233  *  \param arg      the subarguments to decode.
 234  *                  If null, then activate all the flags.
 235  *  \param no       length of the potential "no-" prefix.
 236  *                  Can be 0 or 3. If 3, negate the action of the subargument.
 237  *  \param err      length of a potential "error=".
 238  *                  Can be 0 or 5. If 5, treat the subargument as a CATEGORY.
 239  *
 240  *  If VALUE != 0 then KEY sets flags and no-KEY clears them.
 241  *  If VALUE == 0 then KEY clears all flags from \c all and no-KEY sets all
 242  *  flags from \c all.  Thus no-none = all and no-all = none.
 243  */
 244 static void
 245 warning_argmatch (int *flags, char *arg, size_t no, size_t err)
 246 {
 247   int value = 0;
 248   if (!err || arg[no + err++] != '\0')
 249     value = XARGMATCH ("--warning", arg + no + err,
 250                        warnings_args, warnings_types);
 251
 252   if (value)
 253     {
 254       if (no)
 255         *flags &= ~value;
 256       else
 257         {
 258           if (err)
 259             warnings_flag |= value;
 260           *flags |= value;
 261         }
 262     }
 263   else
 264     {
 265       /* With a simpler 'if (no)' version, -Werror means -Werror=all
 266          (or rather, -Werror=no-none, but that syntax is invalid).
 267          The difference is:
 268          - Werror activates all errors, but not the warnings
 269          - Werror=all activates errors, and all warnings */
 270       if (no ? !err : err)
 271         *flags |= Wall;
 272       else
 273         *flags &= ~Wall;
 274     }
 275 }
 276
 277 /** Decode a comma-separated list of arguments from -W.
 278  *
 279  *  \param args     comma separated list of effective subarguments to decode.
 280  *                  If 0, then activate all the flags.
 281  */
 282 static void
 283 warnings_argmatch (char *args)
 284 {
 285   if (args)
 286     for (args = strtok (args, ","); args; args = strtok (NULL, ","))
 287       {
 288         size_t no = STRPREFIX_LIT ("no-", args) ? 3 : 0;
 289         size_t err = STRPREFIX_LIT ("error", args + no) ? 5 : 0;
 290
 291         warning_argmatch (err ? &errors_flag : &warnings_flag,
 292                           args, no, err);
 293       }
 294   else
 295     warnings_flag |= Wall;
 296 }
 297
 298 const char * const warnings_args[] =
 299 {
 300   "none",
 301   "midrule-values",
 302   "yacc",
 303   "conflicts-sr",
 304   "conflicts-rr",
 305   "deprecated",
 306   "precedence",
 307   "other",
 308   "all",
 309   "error",
 310   0
 311 };
 312
 313 const int warnings_types[] =
 314 {
 315   Wnone,
 316   Wmidrule_values,
 317   Wyacc,
 318   Wconflicts_sr,
 319   Wconflicts_rr,
 320   Wdeprecated,
 321   Wprecedence,
 322   Wother,
 323   Wall,
 324   Werror
 325 };
 326
 327 ARGMATCH_VERIFY (warnings_args, warnings_types);
 328
 329 /*-----------------------.
 330 | --feature's handling.  |
 331 `-----------------------*/
 332
 333 static const char * const feature_args[] =
 334 {
 335   "none",
 336   "caret", "diagnostics-show-caret",
 337   "all",
 338   0
 339 };
 340
 341 static const int feature_types[] =
 342 {
 343   feature_none,
 344   feature_caret, feature_caret,
 345   feature_all
 346 };
 347
 348 ARGMATCH_VERIFY (feature_args, feature_types);
 349
 350 /*-------------------------------------------.
 351 | Display the help message and exit STATUS.  |
 352 `-------------------------------------------*/
 353
 354 static void usage (int) ATTRIBUTE_NORETURN;
 355
 356 static void
 357 usage (int status)
 358 {
 359   if (status != 0)
 360     fprintf (stderr, _("Try `%s --help' for more information.\n"),
 361              program_name);
 362   else
 363     {
 364       /* For ../build-aux/cross-options.pl to work, use the format:
 365                 ^  -S, --long[=ARGS] (whitespace)
 366          A --long option is required.
 367          Otherwise, add exceptions to ../build-aux/cross-options.pl.  */
 368
 369       printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
 370       fputs (_("\
 371 Generate a deterministic LR or generalized LR (GLR) parser employing\n\
 372 LALR(1), IELR(1), or canonical LR(1) parser tables.  IELR(1) and\n\
 373 canonical LR(1) support is experimental.\n\
 374 \n\
 375 "), stdout);
 376
 377       fputs (_("\
 378 Mandatory arguments to long options are mandatory for short options too.\n\
 379 "), stdout);
 380       fputs (_("\
 381 The same is true for optional arguments.\n\
 382 "), stdout);
 383
 384       fputs (_("\
 385 \n\
 386 Operation modes:\n\
 387   -h, --help                 display this help and exit\n\
 388   -V, --version              output version information and exit\n\
 389       --print-localedir      output directory containing locale-dependent data\n\
 390       --print-datadir        output directory containing skeletons and XSLT\n\
 391   -y, --yacc                 emulate POSIX Yacc\n\
 392   -W, --warnings[=CATEGORY]  report the warnings falling in CATEGORY\n\
 393   -f, --feature[=FEATURE]    activate miscellaneous features\n\
 394 \n\
 395 "), stdout);
 396
 397       fputs (_("\
 398 Parser:\n\
 399   -L, --language=LANGUAGE          specify the output programming language\n\
 400   -S, --skeleton=FILE              specify the skeleton to use\n\
 401   -t, --debug                      instrument the parser for tracing\n\
 402                                    same as `-Dparse.trace'\n\
 403       --locations                  enable location support\n\
 404   -D, --define=NAME[=VALUE]        similar to '%define NAME \"VALUE\"'\n\
 405   -F, --force-define=NAME[=VALUE]  override '%define NAME \"VALUE\"'\n\
 406   -p, --name-prefix=PREFIX         prepend PREFIX to the external symbols\n\
 407                                    deprecated by '-Dapi.prefix=PREFIX'\n\
 408   -l, --no-lines                   don't generate '#line' directives\n\
 409   -k, --token-table                include a table of token names\n\
 410 "), stdout);
 411       putc ('\n', stdout);
 412
 413       /* Keep -d and --defines separate so that ../build-aux/cross-options.pl
 414        * won't assume that -d also takes an argument.  */
 415       fputs (_("\
 416 Output:\n\
 417       --defines[=FILE]       also produce a header file\n\
 418   -d                         likewise but cannot specify FILE (for POSIX Yacc)\n\
 419   -r, --report=THINGS        also produce details on the automaton\n\
 420       --report-file=FILE     write report to FILE\n\
 421   -v, --verbose              same as `--report=state'\n\
 422   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\
 423   -o, --output=FILE          leave output to FILE\n\
 424   -g, --graph[=FILE]         also output a graph of the automaton\n\
 425   -x, --xml[=FILE]           also output an XML report of the automaton\n\
 426                              (the XML schema is experimental)\n\
 427 "), stdout);
 428       putc ('\n', stdout);
 429
 430       fputs (_("\
 431 Warning categories include:\n\
 432   `midrule-values'    unset or unused midrule values\n\
 433   `yacc'              incompatibilities with POSIX Yacc\n\
 434   `conflicts-sr'      S/R conflicts (enabled by default)\n\
 435   `conflicts-rr'      R/R conflicts (enabled by default)\n\
 436   `deprecated'        obsolete constructs\n\
 437   `precedence'        useless precedence and associativity\n\
 438   `other'             all other warnings (enabled by default)\n\
 439   `all'               all the warnings\n\
 440   `no-CATEGORY'       turn off warnings in CATEGORY\n\
 441   `none'              turn off all the warnings\n\
 442   `error[=CATEGORY]'  treat warnings as errors\n\
 443 "), stdout);
 444       putc ('\n', stdout);
 445
 446       fputs (_("\
 447 THINGS is a list of comma separated words that can include:\n\
 448   `state'        describe the states\n\
 449   `itemset'      complete the core item sets with their closure\n\
 450   `lookahead'    explicitly associate lookahead tokens to items\n\
 451   `solved'       describe shift/reduce conflicts solving\n\
 452   `all'          include all the above information\n\
 453   `none'         disable the report\n\
 454 "), stdout);
 455       putc ('\n', stdout);
 456
 457       fputs (_("\
 458 FEATURE is a list of comma separated words that can include:\n\
 459   `caret'        show errors with carets\n\
 460   `all'          all of the above\n\
 461   `none'         disable all of the above\n\
 462   "), stdout);
 463
 464       putc ('\n', stdout);
 465       printf (_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
 466       printf (_("%s home page: <%s>.\n"), PACKAGE_NAME, PACKAGE_URL);
 467       fputs (_("General help using GNU software: "
 468                "<http://www.gnu.org/gethelp/>.\n"),
 469              stdout);
 470       /* Don't output this redundant message for English locales.
 471          Note we still output for 'C' so that it gets included in the
 472          man page.  */
 473       const char *lc_messages = setlocale (LC_MESSAGES, NULL);
 474       if (lc_messages && !STREQ (lc_messages, "en_"))
 475         /* TRANSLATORS: Replace LANG_CODE in this URL with your language
 476            code <http://translationproject.org/team/LANG_CODE.html> to
 477            form one of the URLs at http://translationproject.org/team/.
 478            Otherwise, replace the entire URL with your translation team's
 479            email address.  */
 480         fputs (_("Report translation bugs to "
 481                  "<http://translationproject.org/team/>.\n"), stdout);
 482       fputs (_("For complete documentation, run: info bison.\n"), stdout);
 483     }
 484
 485   exit (status);
 486 }
 487
 488
 489 /*------------------------------.
 490 | Display the version message.  |
 491 `------------------------------*/
 492
 493 static void
 494 version (void)
 495 {
 496   /* Some efforts were made to ease the translators' task, please
 497      continue.  */
 498   printf (_("bison (GNU Bison) %s"), VERSION);
 499   putc ('\n', stdout);
 500   fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout);
 501   putc ('\n', stdout);
 502
 503   fprintf (stdout,
 504            _("Copyright (C) %d Free Software Foundation, Inc.\n"),
 505            PACKAGE_COPYRIGHT_YEAR);
 506
 507   fputs (_("\
 508 This is free software; see the source for copying conditions.  There is NO\n\
 509 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 510 "),
 511          stdout);
 512 }
 513
 514
 515 /*-------------------------------------.
 516 | --skeleton and --language handling.  |
 517 `--------------------------------------*/
 518
 519 void
 520 skeleton_arg (char const *arg, int prio, location loc)
 521 {
 522   if (prio < skeleton_prio)
 523     {
 524       skeleton_prio = prio;
 525       skeleton = arg;
 526     }
 527   else if (prio == skeleton_prio)
 528     complain (&loc, complaint,
 529               _("multiple skeleton declarations are invalid"));
 530 }
 531
 532 void
 533 language_argmatch (char const *arg, int prio, location loc)
 534 {
 535   char const *msg;
 536
 537   if (prio < language_prio)
 538     {
 539       int i;
 540       for (i = 0; valid_languages[i].language[0]; i++)
 541         if (c_strcasecmp (arg, valid_languages[i].language) == 0)
 542           {
 543             language_prio = prio;
 544             language = &valid_languages[i];
 545             return;
 546           }
 547       msg = _("%s: invalid language");
 548     }
 549   else if (language_prio == prio)
 550     msg = _("multiple language declarations are invalid");
 551   else
 552     return;
 553
 554   complain (&loc, complaint, msg, quotearg_colon (arg));
 555 }
 556
 557 /*----------------------.
 558 | Process the options.  |
 559 `----------------------*/
 560
 561 /* Shorts options.
 562    Should be computed from long_options.  */
 563 static char const short_options[] =
 564   "D:"
 565   "F:"
 566   "L:"
 567   "S:"
 568   "T::"
 569   "V"
 570   "W::"
 571   "b:"
 572   "d"
 573   "f::"
 574   "e"
 575   "g::"
 576   "h"
 577   "k"
 578   "l"
 579   "n"
 580   "o:"
 581   "p:"
 582   "r:"
 583   "t"
 584   "v"
 585   "x::"
 586   "y"
 587   ;
 588
 589 /* Values for long options that do not have single-letter equivalents.  */
 590 enum
 591 {
 592   LOCATIONS_OPTION = CHAR_MAX + 1,
 593   PRINT_LOCALEDIR_OPTION,
 594   PRINT_DATADIR_OPTION,
 595   REPORT_FILE_OPTION
 596 };
 597
 598 static struct option const long_options[] =
 599 {
 600   /* Operation modes. */
 601   { "help",            no_argument,       0,   'h' },
 602   { "version",         no_argument,       0,   'V' },
 603   { "print-localedir", no_argument,       0,   PRINT_LOCALEDIR_OPTION },
 604   { "print-datadir",   no_argument,       0,   PRINT_DATADIR_OPTION   },
 605   { "warnings",        optional_argument, 0,   'W' },
 606
 607   /* Parser. */
 608   { "name-prefix",   required_argument,   0,   'p' },
 609   { "include",       required_argument,   0,   'I' },
 610
 611   /* Output. */
 612   { "file-prefix", required_argument,   0,   'b' },
 613   { "output",      required_argument,   0,   'o' },
 614   { "output-file", required_argument,   0,   'o' },
 615   { "graph",       optional_argument,   0,   'g' },
 616   { "xml",         optional_argument,   0,   'x' },
 617   { "report",      required_argument,   0,   'r' },
 618   { "report-file", required_argument,   0,   REPORT_FILE_OPTION },
 619   { "verbose",     no_argument,         0,   'v' },
 620
 621   /* Hidden. */
 622   { "trace",         optional_argument,   0,     'T' },
 623
 624   /* Output.  */
 625   { "defines",     optional_argument,   0,   'd' },
 626   { "feature",     optional_argument,   0,   'f' },
 627
 628   /* Operation modes.  */
 629   { "fixed-output-files", no_argument,  0,   'y' },
 630   { "yacc",               no_argument,  0,   'y' },
 631
 632   /* Parser.  */
 633   { "debug",          no_argument,               0,   't' },
 634   { "define",         required_argument,         0,   'D' },
 635   { "force-define",   required_argument,         0,   'F' },
 636   { "locations",      no_argument,               0, LOCATIONS_OPTION },
 637   { "no-lines",       no_argument,               0,   'l' },
 638   { "raw",            no_argument,               0,     0 },
 639   { "skeleton",       required_argument,         0,   'S' },
 640   { "language",       required_argument,         0,   'L' },
 641   { "token-table",    no_argument,               0,   'k' },
 642
 643   {0, 0, 0, 0}
 644 };
 645
 646 /* Under DOS, there is no difference on the case.  This can be
 647    troublesome when looking for `.tab' etc.  */
 648 #ifdef MSDOS
 649 # define AS_FILE_NAME(File) (strlwr (File), (File))
 650 #else
 651 # define AS_FILE_NAME(File) (File)
 652 #endif
 653
 654 /* Build a location for the current command line argument. */
 655 static
 656 location
 657 command_line_location (void)
 658 {
 659   location res;
 660   /* "<command line>" is used in GCC's messages about -D. */
 661   boundary_set (&res.start, uniqstr_new ("<command line>"), optind - 1, -1);
 662   res.end = res.start;
 663   return res;
 664 }
 665
 666
 667 void
 668 getargs (int argc, char *argv[])
 669 {
 670   int c;
 671
 672   while ((c = getopt_long (argc, argv, short_options, long_options, NULL))
 673          != -1)
 674     switch (c)
 675       {
 676         /* ASCII Sorting for short options (i.e., upper case then
 677            lower case), and then long-only options.  */
 678
 679       case 0:
 680         /* Certain long options cause getopt_long to return 0.  */
 681         break;
 682
 683       case 'D': /* -DNAME[=VALUE]. */
 684       case 'F': /* -FNAME[=VALUE]. */
 685         {
 686           char* name = optarg;
 687           char* value = strchr (optarg, '=');
 688           if (value)
 689             *value++ = 0;
 690           muscle_percent_define_insert (name, command_line_location (),
 691                                         value ? value : "",
 692                                         c == 'D' ? MUSCLE_PERCENT_DEFINE_D
 693                                                  : MUSCLE_PERCENT_DEFINE_F);
 694         }
 695         break;
 696
 697       case 'I':
 698         include = AS_FILE_NAME (optarg);
 699         break;
 700
 701       case 'L':
 702         language_argmatch (optarg, command_line_prio,
 703                            command_line_location ());
 704         break;
 705
 706       case 'S':
 707         skeleton_arg (AS_FILE_NAME (optarg), command_line_prio,
 708                       command_line_location ());
 709         break;
 710
 711       case 'T':
 712         FLAGS_ARGMATCH (trace, optarg, trace_all);
 713         break;
 714
 715       case 'V':
 716         version ();
 717         exit (EXIT_SUCCESS);
 718
 719       case 'f':
 720         FLAGS_ARGMATCH (feature, optarg, feature_all);
 721         break;
 722
 723       case 'W':
 724         warnings_argmatch (optarg);
 725         break;
 726
 727       case 'b':
 728         spec_file_prefix = AS_FILE_NAME (optarg);
 729         break;
 730
 731       case 'd':
 732         /* Here, the -d and --defines options are differentiated.  */
 733         defines_flag = true;
 734         if (optarg)
 735           {
 736             free (spec_defines_file);
 737             spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
 738           }
 739         break;
 740
 741       case 'g':
 742         graph_flag = true;
 743         if (optarg)
 744           {
 745             free (spec_graph_file);
 746             spec_graph_file = xstrdup (AS_FILE_NAME (optarg));
 747           }
 748         break;
 749
 750       case 'h':
 751         usage (EXIT_SUCCESS);
 752
 753       case 'k':
 754         token_table_flag = true;
 755         break;
 756
 757       case 'l':
 758         no_lines_flag = true;
 759         break;
 760
 761       case 'o':
 762         spec_outfile = AS_FILE_NAME (optarg);
 763         break;
 764
 765       case 'p':
 766         spec_name_prefix = optarg;
 767         break;
 768
 769       case 'r':
 770         FLAGS_ARGMATCH (report, optarg, report_all);
 771         break;
 772
 773       case 't':
 774         muscle_percent_define_insert ("parse.trace",
 775                                       command_line_location (), "",
 776                                       MUSCLE_PERCENT_DEFINE_D);
 777         break;
 778
 779       case 'v':
 780         report_flag |= report_states;
 781         break;
 782
 783       case 'x':
 784         xml_flag = true;
 785         if (optarg)
 786           {
 787             free (spec_xml_file);
 788             spec_xml_file = xstrdup (AS_FILE_NAME (optarg));
 789           }
 790         break;
 791
 792       case 'y':
 793         warnings_flag |= Wyacc;
 794         errors_flag |= Wyacc;
 795         yacc_flag = true;
 796         break;
 797
 798       case LOCATIONS_OPTION:
 799         muscle_percent_define_ensure ("locations",
 800                                       command_line_location (), true);
 801         break;
 802
 803       case PRINT_LOCALEDIR_OPTION:
 804         printf ("%s\n", LOCALEDIR);
 805         exit (EXIT_SUCCESS);
 806
 807       case PRINT_DATADIR_OPTION:
 808         printf ("%s\n", pkgdatadir ());
 809         exit (EXIT_SUCCESS);
 810
 811       case REPORT_FILE_OPTION:
 812         free (spec_verbose_file);
 813         spec_verbose_file = xstrdup (AS_FILE_NAME (optarg));
 814         break;
 815
 816       default:
 817         usage (EXIT_FAILURE);
 818       }
 819
 820   if (argc - optind != 1)
 821     {
 822       if (argc - optind < 1)
 823         error (0, 0, _("%s: missing operand"), quotearg_colon (argv[argc - 1]));
 824       else
 825         error (0, 0, _("extra operand %s"), quote (argv[optind + 1]));
 826       usage (EXIT_FAILURE);
 827     }
 828
 829   current_file = grammar_file = uniqstr_new (argv[optind]);
 830   MUSCLE_INSERT_C_STRING ("file_name", grammar_file);
 831 }
 832
 833 void
 834 tr (char *s, char from, char to)
 835 {
 836   for (; *s; s++)
 837     if (*s == from)
 838       *s = to;
 839 }