* NEWS: The -g and --graph options now output graphs in Graphviz

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 25d042cea046c969f42350f3fe02d031fb962d6f..52f97e17346a14aed2ca67026c96415832d1f6c3 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -1,6 +1,7 @@
-/* Parse command line arguments for bison.
-   Copyright 1984, 1986, 1989, 1992, 2000, 2001, 2002
-   Free Software Foundation, Inc.
+/* Parse command line arguments for Bison.
+
+   Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+   2005, 2006 Free Software Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -16,33 +17,108 @@
 
    You should have received a copy of the GNU General Public License
    along with Bison; see the file COPYING.  If not, write to the Free
 
    You should have received a copy of the GNU General Public License
    along with Bison; see the file COPYING.  If not, write to the Free

-   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.  */
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.  */

 
 

+#include <config.h>

 #include "system.h"
 #include "system.h"

-#include "getopt.h"
-#include "argmatch.h"
+#include "revision.h"
+
+#include <argmatch.h>
+#include <configmake.h>
+#include <error.h>
+
+/* Hack to get <getopt.h> to declare getopt with a prototype.  */
+#if lint && ! defined __GNU_LIBRARY__
+# define __GNU_LIBRARY__
+# define HACK_FOR___GNU_LIBRARY___PROTOTYPE 1
+#endif
+
+#include <getopt.h>
+
+#ifdef HACK_FOR___GNU_LIBRARY___PROTOTYPE
+# undef __GNU_LIBRARY__
+# undef HACK_FOR___GNU_LIBRARY___PROTOTYPE
+#endif
+

 #include "complain.h"
 #include "complain.h"

-#include "getargs.h"
-#include "options.h"

 #include "files.h"
 #include "files.h"

+#include "getargs.h"
+#include "uniqstr.h"
+
+bool debug_flag;
+bool defines_flag;
+bool graph_flag;
+bool locations_flag;
+bool no_lines_flag;
+bool no_parser_flag;
+bool token_table_flag;
+bool yacc_flag;        /* for -y */
+
+bool error_verbose = false;

 
 

-int debug_flag = 0;
-int defines_flag = 0;
-int locations_flag = 0;
-int no_lines_flag = 0;
-int no_parser_flag = 0;
-int report_flag = 0;
-int token_table_flag = 0;
-int yacc_flag = 0;     /* for -y */
-int graph_flag = 0;
-int trace_flag = 0;
+bool nondeterministic_parser = false;
+bool glr_parser = false;
+bool pure_parser = false;
+bool push_parser = false;
+
+int report_flag = report_none;
+int trace_flag = trace_none;
+int warnings_flag = warnings_none;

 
 const char *skeleton = NULL;
 const char *include = NULL;
 
 extern char *program_name;
 
 
 const char *skeleton = NULL;
 const char *include = NULL;
 
 extern char *program_name;
 

+
+/** Decode an option's set of keys.
+ *
+ *  \param option   option being decoded.
+ *  \paran keys     array of valid subarguments.
+ *  \param values   array of corresponding (int) values.
+ *  \param flag     the flags to update
+ *  \param args     colon separated list of effective subarguments to decode.
+ *                  If 0, then activate all the flags.
+ *
+ *  The special value 0 resets the flags to 0.
+ */
+static void
+flags_argmatch (const char *option,
+               const char * const keys[], const int values[],
+               int *flags, char *args)
+{
+  if (args)
+    {
+      args = strtok (args, ",");
+      do
+       {
+         int value = XARGMATCH (option, args, keys, values);
+         if (value == 0)
+           *flags = 0;
+         else
+           *flags |= value;
+       }
+      while ((args = strtok (NULL, ",")));
+    }
+  else
+    *flags = ~0;
+}
+
+/** Decode a set of sub arguments.
+ *
+ *  \param FlagName  the flag familly to update.
+ *  \param args      the effective sub arguments to decode.
+ *
+ *  \arg FlagName_args   the list of keys.
+ *  \arg FlagName_types  the list of values.
+ *  \arg FlagName_flag   the flag to update.
+ */
+#define FLAGS_ARGMATCH(FlagName, Args)                                 \
+  flags_argmatch ("--" #FlagName, FlagName ## _args, FlagName ## _types, \
+                 &FlagName ## _flag, Args)
+
+

 /*----------------------.
 | --report's handling.  |
 `----------------------*/
 /*----------------------.
 | --report's handling.  |
 `----------------------*/


@@ -54,7 +130,8 @@ static const char * const report_args[] =
   "none",
   "state", "states",
   "itemset", "itemsets",
   "none",
   "state", "states",
   "itemset", "itemsets",

-  "lookahead", "lookaheads",
+  "lookahead", "lookaheads", "look-ahead",
+  "solved",

   "all",
   0
 };
   "all",
   0
 };


@@ -64,58 +141,121 @@ static const int report_types[] =
   report_none,
   report_states, report_states,
   report_states | report_itemsets, report_states | report_itemsets,
   report_none,
   report_states, report_states,
   report_states | report_itemsets, report_states | report_itemsets,

-  report_states | report_lookaheads, report_states | report_lookaheads,
+  report_states | report_lookahead_tokens,
+  report_states | report_lookahead_tokens,
+  report_states | report_lookahead_tokens,
+  report_states | report_solved_conflicts,

   report_all
 };
 
   report_all
 };
 

+ARGMATCH_VERIFY (report_args, report_types);

 
 

-static void
-report_argmatch (char *args)
+
+/*---------------------.
+| --trace's handling.  |
+`---------------------*/
+
+static const char * const trace_args[] =

 {
 {

-  ARGMATCH_ASSERT (report_args, report_types);
-  do
-    {
-      int report = XARGMATCH ("--report", args,
-                             report_args, report_types);
-      if (report == report_none)
-       report_flag = report_none;
-      else
-       report_flag |= report;
-    }
-  while ((args = strtok (NULL, ",")));
-}
+  /* In a series of synonyms, present the most meaningful first, so
+     that argmatch_valid be more readable.  */
+  "none       - no traces",
+  "scan       - grammar scanner traces",
+  "parse      - grammar parser traces",
+  "automaton  - construction of the automaton",
+  "bitsets    - use of bitsets",
+  "grammar    - reading, reducing the grammar",
+  "resource   - memory consumption (where available)",
+  "sets       - grammar sets: firsts, nullable etc.",
+  "tools      - m4 invocation",
+  "m4         - m4 traces",
+  "skeleton   - skeleton postprocessing",
+  "time       - time consumption",
+  "all        - all of the above",
+  0
+};
+
+static const int trace_types[] =
+{
+  trace_none,
+  trace_scan,
+  trace_parse,
+  trace_automaton,
+  trace_bitsets,
+  trace_grammar,
+  trace_resource,
+  trace_sets,
+  trace_tools,
+  trace_m4,
+  trace_skeleton,
+  trace_time,
+  trace_all
+};

 
 

-/*---------------------------.
-| Display the help message.  |
-`---------------------------*/
+ARGMATCH_VERIFY (trace_args, trace_types);

 
 

-static void
-usage (FILE *stream)
+
+/*------------------------.
+| --warnings's handling.  |
+`------------------------*/
+
+static const char * const warnings_args[] =

 {
 {

-  /* Some efforts were made to ease the translators' task, please
-     continue.  */
-  fputs (_("\
-GNU bison generates parsers for LALR(1) grammars.\n"), stream);
-  putc ('\n', stream);
+  /* In a series of synonyms, present the most meaningful first, so
+     that argmatch_valid be more readable.  */
+  "none       - no warnings",
+  "error      - warnings are errors",
+  "yacc       - incompatibilities with POSIX YACC",
+  "all        - all of the above",
+  0
+};

 
 

-  fprintf (stream, _("\
-Usage: %s [OPTION]... FILE\n"), program_name);
-  putc ('\n', stream);
+static const int warnings_types[] =
+{
+  warnings_none,
+  warnings_error,
+  warnings_yacc,
+  warnings_all
+};

 
 

-  fputs (_("\
-If a long option shows an argument as mandatory, then it is mandatory\n\
-for the equivalent short option also.  Similarly for optional arguments.\n"),
-        stream);
-  putc ('\n', stream);
+ARGMATCH_VERIFY (warnings_args, warnings_types);

 
 

-  fputs (_("\
+
+/*-------------------------------------------.
+| Display the help message and exit STATUS.  |
+`-------------------------------------------*/
+
+static void usage (int) ATTRIBUTE_NORETURN;
+
+static void
+usage (int status)
+{
+  if (status != 0)
+    fprintf (stderr, _("Try `%s --help' for more information.\n"),
+            program_name);
+  else
+    {
+      printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
+      fputs (_("\
+Generate LALR(1) and GLR parsers.\n\
+\n\
+"), stdout);
+
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+
+      fputs (_("\
+\n\

 Operation modes:\n\
 Operation modes:\n\

-  -h, --help      display this help and exit\n\
-  -V, --version   output version information and exit\n\
-  -y, --yacc      emulate POSIX yacc\n"), stream);
-  putc ('\n', stream);
+  -h, --help                 display this help and exit\n\
+  -V, --version              output version information and exit\n\
+      --print-localedir      output directory containing locale-dependent data\n\
+  -y, --yacc                 emulate POSIX Yacc\n\
+\n\
+"), stdout);

 
 

-  fputs (_("\
+      fputs (_("\

 Parser:\n\
   -S, --skeleton=FILE        specify the skeleton to use\n\
   -t, --debug                instrument the parser for debugging\n\
 Parser:\n\
   -S, --skeleton=FILE        specify the skeleton to use\n\
   -t, --debug                instrument the parser for debugging\n\


@@ -124,29 +264,34 @@ Parser:\n\
   -l, --no-lines             don't generate `#line' directives\n\
   -n, --no-parser            generate the tables only\n\
   -k, --token-table          include a table of token names\n\
   -l, --no-lines             don't generate `#line' directives\n\
   -n, --no-parser            generate the tables only\n\
   -k, --token-table          include a table of token names\n\

-"), stream);
-  putc ('\n', stream);
+\n\
+"), stdout);

 
 

-  fputs (_("\
+      fputs (_("\

 Output:\n\
   -d, --defines              also produce a header file\n\
   -r, --report=THINGS        also produce details on the automaton\n\
   -v, --verbose              same as `--report=state'\n\
   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\
   -o, --output=FILE          leave output to FILE\n\
 Output:\n\
   -d, --defines              also produce a header file\n\
   -r, --report=THINGS        also produce details on the automaton\n\
   -v, --verbose              same as `--report=state'\n\
   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\
   -o, --output=FILE          leave output to FILE\n\

-  -g, --graph                also produce a VCG description of the automaton\n\
+  -g, --graph                also output a graph of the automaton\n\

 \n\
 \n\

+"), stdout);
+
+      fputs (_("\

 THINGS is a list of comma separated words that can include:\n\
   `state'        describe the states\n\
   `itemset'      complete the core item sets with their closure\n\
 THINGS is a list of comma separated words that can include:\n\
   `state'        describe the states\n\
   `itemset'      complete the core item sets with their closure\n\

-  `lookahead'    explicitly associate lookaheads to items\n\
+  `lookahead'    explicitly associate lookahead tokens to items\n\
+  `solved'       describe shift/reduce conflicts solving\n\

   `all'          include all the above information\n\
   `none'         disable the report\n\
   `all'          include all the above information\n\
   `none'         disable the report\n\

-"), stream);
-  putc ('\n', stream);
+"), stdout);

 
 

-  fputs (_("\
-Report bugs to <bug-bison@gnu.org>.\n"), stream);
+      printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
+    }
+
+  exit (status);

 }
 
 
 }
 
 


@@ -155,23 +300,24 @@ Report bugs to <bug-bison@gnu.org>.\n"), stream);
 `------------------------------*/
 
 static void
 `------------------------------*/
 
 static void

-version (FILE *stream)
+version (void)

 {
   /* Some efforts were made to ease the translators' task, please
      continue.  */
 {
   /* Some efforts were made to ease the translators' task, please
      continue.  */

-  fprintf (stream, _("bison (GNU Bison) %s"), VERSION);
-  putc ('\n', stream);
-  fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stream);
-  putc ('\n', stream);
+  printf (_("bison (GNU Bison) %s"), VERSION);
+  putc ('\n', stdout);
+  printf ("%s", revision);
+  fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout);
+  putc ('\n', stdout);

 
 

-  fprintf (stream,
-          _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2002);
+  fprintf (stdout,
+          _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2006);

 
   fputs (_("\
 This is free software; see the source for copying conditions.  There is NO\n\
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 "),
 
   fputs (_("\
 This is free software; see the source for copying conditions.  There is NO\n\
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 "),

-        stream);
+        stdout);

 }
 
 
 }
 
 


@@ -179,6 +325,58 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 | Process the options.  |
 `----------------------*/
 
 | Process the options.  |
 `----------------------*/
 

+/* Shorts options.  */
+static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::W";
+
+/* Values for long options that do not have single-letter equivalents.  */
+enum
+{
+  LOCATIONS_OPTION = CHAR_MAX + 1,
+  PRINT_LOCALEDIR_OPTION
+};
+
+static struct option const long_options[] =
+{
+  /* Operation modes. */
+  { "help",            no_argument,      0,   'h' },
+  { "version",         no_argument,      0,   'V' },
+  { "print-localedir", no_argument,      0,   PRINT_LOCALEDIR_OPTION },
+  { "warnings",        optional_argument, 0,   'W' },
+
+  /* Parser. */
+  { "name-prefix",   required_argument,          0,   'p' },
+  { "include",       required_argument,   0,   'I' },
+
+  /* Output. */
+  { "file-prefix", required_argument,  0,   'b' },
+  { "output",     required_argument,   0,   'o' },
+  { "output-file", required_argument,  0,   'o' },
+  { "graph",      optional_argument,   0,   'g' },
+  { "report",     required_argument,   0,   'r' },
+  { "verbose",    no_argument,         0,   'v' },
+
+  /* Hidden. */
+  { "trace",         optional_argument,   0,     'T' },
+
+  /* Output.  */
+  { "defines",     optional_argument,   0,   'd' },
+
+  /* Operation modes.  */
+  { "fixed-output-files", no_argument,  0,   'y' },
+  { "yacc",              no_argument,  0,   'y' },
+
+  /* Parser.  */
+  { "debug",         no_argument,               0,   't' },
+  { "locations",      no_argument,              0, LOCATIONS_OPTION },
+  { "no-lines",       no_argument,               0,   'l' },
+  { "no-parser",      no_argument,               0,   'n' },
+  { "raw",            no_argument,               0,     0 },
+  { "skeleton",       required_argument,         0,   'S' },
+  { "token-table",    no_argument,               0,   'k' },
+
+  {0, 0, 0, 0}
+};
+

 /* Under DOS, there is no difference on the case.  This can be
    troublesome when looking for `.tab' etc.  */
 #ifdef MSDOS
 /* Under DOS, there is no difference on the case.  This can be
    troublesome when looking for `.tab' etc.  */
 #ifdef MSDOS


@@ -192,35 +390,27 @@ getargs (int argc, char *argv[])
 {
   int c;
 
 {
   int c;
 

-  struct option *longopts = long_option_table_new ();
-  while ((c = getopt_long (argc, argv, shortopts, longopts, NULL)) != EOF)
+  while ((c = getopt_long (argc, argv, short_options, long_options, NULL))
+        != -1)

     switch (c)
       {
       case 0:
        /* Certain long options cause getopt_long to return 0.  */
        break;
 
     switch (c)
       {
       case 0:
        /* Certain long options cause getopt_long to return 0.  */
        break;
 

-      case 'y':
-       yacc_flag = 1;
+      case 'b':
+       spec_file_prefix = AS_FILE_NAME (optarg);

        break;
 
        break;
 

-      case 'h':
-       usage (stdout);
-       exit (0);
-
-      case 'V':
-       version (stdout);
-       exit (0);
-

       case 'g':
        /* Here, the -g and --graph=FILE options are differentiated.  */
       case 'g':
        /* Here, the -g and --graph=FILE options are differentiated.  */

-       graph_flag = 1;
-       spec_graph_file = AS_FILE_NAME (optarg);
+       graph_flag = true;
+       if (optarg)
+         spec_graph_file = AS_FILE_NAME (optarg);

        break;
 
        break;
 

-      case 'v':
-       report_flag |= report_states;
-       break;
+      case 'h':
+       usage (EXIT_SUCCESS);

 
       case 'S':
        skeleton = AS_FILE_NAME (optarg);
 
       case 'S':
        skeleton = AS_FILE_NAME (optarg);


@@ -232,59 +422,79 @@ getargs (int argc, char *argv[])
 
       case 'd':
        /* Here, the -d and --defines options are differentiated.  */
 
       case 'd':
        /* Here, the -d and --defines options are differentiated.  */

-       defines_flag = 1;
+       defines_flag = true;

        if (optarg)
          spec_defines_file = AS_FILE_NAME (optarg);
        break;
 
        if (optarg)
          spec_defines_file = AS_FILE_NAME (optarg);
        break;
 

-      case 'l':
-       no_lines_flag = 1;
-       break;
-

       case 'k':
       case 'k':

-       token_table_flag = 1;
+       token_table_flag = true;

        break;
 
        break;
 

-      case 'n':
-       no_parser_flag = 1;
+      case 'l':
+       no_lines_flag = true;

        break;
 
        break;
 

-      case 't':
-       debug_flag = 1;
+      case 'n':
+       no_parser_flag = true;

        break;
 
       case 'o':
        spec_outfile = AS_FILE_NAME (optarg);
        break;
 
        break;
 
       case 'o':
        spec_outfile = AS_FILE_NAME (optarg);
        break;
 

-      case 'b':
-       spec_file_prefix = AS_FILE_NAME (optarg);
-       break;
-

       case 'p':
        spec_name_prefix = optarg;
        break;
 
       case 'r':
       case 'p':
        spec_name_prefix = optarg;
        break;
 
       case 'r':

-       report_argmatch (optarg);
+       FLAGS_ARGMATCH (report, optarg);

        break;
 
        break;
 

+      case 'T':
+       FLAGS_ARGMATCH (trace, optarg);
+       break;
+
+      case 't':
+       debug_flag = true;
+       break;
+
+      case 'V':
+       version ();
+       exit (EXIT_SUCCESS);
+
+      case 'v':
+       report_flag |= report_states;
+       break;
+
+      case 'y':
+       yacc_flag = true;
+       break;
+
+      case 'W':
+       FLAGS_ARGMATCH (warnings, optarg);
+       break;
+
+      case LOCATIONS_OPTION:
+       locations_flag = true;
+       break;
+
+      case PRINT_LOCALEDIR_OPTION:
+       printf ("%s\n", LOCALEDIR);
+       exit (EXIT_SUCCESS);
+

       default:
       default:

-       fprintf (stderr, _("Try `%s --help' for more information.\n"),
-                program_name);
-       exit (1);
+       usage (EXIT_FAILURE);

       }
 
       }
 

-  free (longopts);
-
-  if (optind == argc)
+  if (argc - optind != 1)

     {
     {

-      fprintf (stderr, _("%s: no grammar file given\n"), program_name);
-      exit (1);
+      if (argc - optind < 1)
+       error (0, 0, _("missing operand after `%s'"), argv[argc - 1]);
+      else
+       error (0, 0, _("extra operand `%s'"), argv[optind + 1]);
+      usage (EXIT_FAILURE);

     }
     }

-  if (optind < argc - 1)
-    fprintf (stderr, _("%s: extra arguments ignored after `%s'\n"),
-            program_name, argv[optind]);

 
 

-  infile = argv[optind];
+  current_file = grammar_file = uniqstr_new (argv[optind]);

 }
 }