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