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