Change @dircategory from "GNU programming tools" to "Software development".

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 9882af917b44f4b60af50cc4eb5adbb1f21ce692..969c66115218d2546df51545c6d7300d47b3eec3 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -1,5 +1,7 @@
-/* Parse command line arguments for bison.
-   Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
+/* Parse command line arguments for Bison.
+
+   Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005
+   Free Software Foundation, Inc.

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


@@ -18,106 +20,237 @@
    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
    02111-1307, USA.  */
 
    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
    02111-1307, USA.  */
 

-#include <stdio.h>
-#include "getopt.h"

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

+
+#include <argmatch.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 "files.h"
 #include "getargs.h"
 #include "files.h"
 #include "getargs.h"

-
-int debug_flag = 0;
-int defines_flag = 0;
-int locations_flag = 0;
-int no_lines_flag = 0;
-int no_parser_flag = 0;
-int raw_flag = 0;
-int token_table_flag = 0;
-int verbose_flag = 0;
-int statistics_flag = 0;
-int yacc_flag = 0;     /* for -y */
+#include "uniqstr.h"
+
+bool debug_flag;
+bool defines_flag;
+bool locations_flag;
+bool no_lines_flag;
+bool no_parser_flag;
+int report_flag = report_none;
+bool token_table_flag;
+bool yacc_flag;        /* for -y */
+bool graph_flag;
+int trace_flag = trace_none;
+
+bool nondeterministic_parser = false;
+bool glr_parser = false;
+bool pure_parser = false;
+
+const char *skeleton = NULL;
+const char *include = NULL;

 
 extern char *program_name;
 
 extern char *program_name;

-const char *shortopts = "yvdhrltknVo:b:p:";
-static struct option longopts[] =
+
+
+/*---------------------.
+| --trace's handling.  |
+`---------------------*/
+
+static const char * const trace_args[] =

 {
 {

-  /* Operation modes. */
-  {"help",             no_argument,    0, 'h'},
-  {"version",          no_argument,    0, 'V'},
-  {"yacc",             no_argument,    0, 'y'},
-  {"fixed-output-files",no_argument,   0, 'y'},
+  /* In a series of synonyms, present the most meaningful first, so
+     that argmatch_valid be more readable.  */
+  "none       - no report",
+  "scan       - grammar scanner traces",
+  "parse      - grammar parser traces",
+  "automaton  - contruction of the automaton",
+  "bitsets    - use of bitsets",
+  "grammar    - reading, reducing of the grammar",
+  "resource   - memory consumption (where available)",
+  "sets       - grammar sets: firsts, nullable etc.",
+  "tools      - m4 invocation and preserve the temporary file",
+  "skeleton   - skeleton postprocessing",
+  "time       - time consumption",
+  "all        - all of the above",
+  0
+};

 
 

-  /* Parser. */
-  {"locations",                no_argument,    &locations_flag, 1},
-  /* was 'a';  apparently unused -wjh */
-  {"name-prefix",      required_argument,      0, 'p'},
-  {"no-lines",         no_argument,            0, 'l'},
-  {"no-parser",                no_argument,            0, 'n'},
-  {"raw",              no_argument,            0, 'r'},
-  {"token-table",      no_argument,            0, 'k'},
-  {"debug",            no_argument,            0, 'd'},
+static const int trace_types[] =
+{
+  trace_none,
+  trace_scan,
+  trace_parse,
+  trace_automaton,
+  trace_bitsets,
+  trace_grammar,
+  trace_resource,
+  trace_sets,
+  trace_tools,
+  trace_skeleton,
+  trace_time,
+  trace_all
+};

 
 

-  /* Output. */
-  {"defines",          no_argument,            0, 'd'},
-  {"verbose",          no_argument,            0, 'v'},
-  {"file-prefix",      required_argument,      0, 'b'},
-  {"output-file",      required_argument,      0, 'o'},

 
 

-  /* Hidden. */
-  {"statistics",       no_argument,    &statistics_flag, 1},
-  {0, 0, 0, 0}
+static void
+trace_argmatch (char *args)
+{
+  verify (trace_constraint, ARGMATCH_CONSTRAINT (trace_args, trace_types));
+  if (args)
+    {
+      args = strtok (args, ",");
+      do
+       {
+         int trace = XARGMATCH ("--trace", args,
+                                trace_args, trace_types);
+         if (trace == trace_none)
+           trace_flag = trace_none;
+         else
+           trace_flag |= trace;
+       }
+      while ((args = strtok (NULL, ",")));
+    }
+  else
+    trace_flag = trace_all;
+}
+
+
+/*----------------------.
+| --report's handling.  |
+`----------------------*/
+
+static const char * const report_args[] =
+{
+  /* In a series of synonyms, present the most meaningful first, so
+     that argmatch_valid be more readable.  */
+  "none",
+  "state", "states",
+  "itemset", "itemsets",
+  "look-ahead", "lookahead", "lookaheads",
+  "solved",
+  "all",
+  0
+};
+
+static const int report_types[] =
+{
+  report_none,
+  report_states, report_states,
+  report_states | report_itemsets, report_states | report_itemsets,
+  report_states | report_look_ahead_tokens,
+  report_states | report_look_ahead_tokens,
+  report_states | report_look_ahead_tokens,
+  report_states | report_solved_conflicts,
+  report_all

 };
 
 };
 

-/*---------------------------.
-| Display the help message.  |
-`---------------------------*/

 
 static void
 
 static void

-usage (FILE *stream)
+report_argmatch (char *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);
+  verify (report_constraint, ARGMATCH_CONSTRAINT (report_args, report_types));
+  args = strtok (args, ",");
+  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, ",")));
+}

 
 

-  fprintf (stream, _("\
+
+/*-------------------------------------------.
+| 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
+    {
+      /* Some efforts were made to ease the translators' task, please
+        continue.  */
+      fputs (_("\
+GNU bison generates parsers for LALR(1) grammars.\n"), stdout);
+      putc ('\n', stdout);
+
+      fprintf (stdout, _("\

 Usage: %s [OPTION]... FILE\n"), program_name);
 Usage: %s [OPTION]... FILE\n"), program_name);

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

 
 

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

 
 

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

 Operation modes:\n\
   -h, --help      display this help and exit\n\
   -V, --version   output version information and exit\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);
+  -y, --yacc      emulate POSIX yacc\n"), stdout);
+      putc ('\n', stdout);

 
 

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

 Parser:\n\
 Parser:\n\

+  -S, --skeleton=FILE        specify the skeleton to use\n\

   -t, --debug                instrument the parser for debugging\n\
       --locations            enable locations computation\n\
   -p, --name-prefix=PREFIX   prepend PREFIX to the external symbols\n\
   -l, --no-lines             don't generate `#line' directives\n\
   -n, --no-parser            generate the tables only\n\
   -t, --debug                instrument the parser for debugging\n\
       --locations            enable locations computation\n\
   -p, --name-prefix=PREFIX   prepend PREFIX to the external symbols\n\
   -l, --no-lines             don't generate `#line' directives\n\
   -n, --no-parser            generate the tables only\n\

-  -r, --raw                  number the tokens from 3\n\

   -k, --token-table          include a table of token names\n\
   -k, --token-table          include a table of token names\n\

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

 
 

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

 Output:\n\
   -d, --defines              also produce a header file\n\
 Output:\n\
   -d, --defines              also produce a header file\n\

-  -v, --verbose              also produce an explanation of the automaton\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\
   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\

-  -o, --output-file=FILE     leave output to FILE\n"), stream);
-  putc ('\n', stream);
+  -o, --output=FILE          leave output to FILE\n\
+  -g, --graph                also produce a VCG description of the automaton\n\
+"), stdout);
+      putc ('\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\
+  `look-ahead'   explicitly associate look-ahead tokens to items\n\
+  `solved'       describe shift/reduce conflicts solving\n\
+  `all'          include all the above information\n\
+  `none'         disable the report\n\
+"), stdout);
+      putc ('\n', stdout);
+
+      fputs (_("\
+Report bugs to <bug-bison@gnu.org>.\n"), stdout);
+    }

 
 

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

 }
 
 
 }
 
 


@@ -126,24 +259,23 @@ 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);
-  putc ('\n', stream);
+  printf (_("bison (GNU Bison) %s"), VERSION);
+  putc ('\n', stdout);
+  fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stdout);
+  putc ('\n', stdout);

 
 

-  fputs (_("\
-Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.\n"),
-        stream);
+  fprintf (stdout,
+          _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2005);

 
   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);

 }
 
 
 }
 
 


@@ -151,87 +283,165 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 | Process the options.  |
 `----------------------*/
 
 | Process the options.  |
 `----------------------*/
 

+/* Shorts options.  */
+const char *short_options = "yvegdhr:ltknVo:b:p:S:T::";
+
+/* Values for long options that do not have single-letter equivalents.  */
+enum
+{
+  LOCATIONS_OPTION = CHAR_MAX + 1
+};
+
+static struct option const long_options[] =
+{
+  /* Operation modes. */
+  { "help",          no_argument,              0,   'h' },
+  { "version",       no_argument,              0,   'V' },
+
+  /* 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
+# define AS_FILE_NAME(File) (strlwr (File), (File))
+#else
+# define AS_FILE_NAME(File) (File)
+#endif
+

 void
 getargs (int argc, char *argv[])
 {
   int c;
 
 void
 getargs (int argc, char *argv[])
 {
   int c;
 

-  while ((c = getopt_long (argc, argv, "yvdhrltknVo:b:p:", longopts, (int *)0))
-        != EOF)
-    {
-      switch (c)
-       {
-       case 0:
-         /* Certain long options cause getopt_long to return 0.  */
-         break;
-
-       case 'y':
-         yacc_flag = 1;
-         break;
-
-       case 'h':
-         usage (stdout);
-         exit (0);
-
-       case 'V':
-         version (stdout);
-         exit (0);
-
-       case 'v':
-         verbose_flag = 1;
-         break;
-
-       case 'd':
-         defines_flag = 1;
-         break;
-
-       case 'l':
-         no_lines_flag = 1;
-         break;
-
-       case 'k':
-         token_table_flag = 1;
-         break;
-
-       case 'r':
-         raw_flag = 1;
-         break;
-
-       case 'n':
-         no_parser_flag = 1;
-         break;
-
-       case 't':
-         debug_flag = 1;
-         break;
-
-       case 'o':
-         spec_outfile = optarg;
-         break;
-
-       case 'b':
-         spec_file_prefix = optarg;
-         break;
-
-       case 'p':
-         spec_name_prefix = optarg;
-         break;
-
-       default:
-         fprintf (stderr, _("Try `%s --help' for more information.\n"),
-                  program_name);
-         exit (1);
-       }
-    }
-
-  if (optind == argc)
+  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;
+
+      case 'y':
+       yacc_flag = true;
+       break;
+
+      case 'h':
+       usage (EXIT_SUCCESS);
+
+      case 'V':
+       version ();
+       exit (EXIT_SUCCESS);
+
+      case 'g':
+       /* Here, the -g and --graph=FILE options are differentiated.  */
+       graph_flag = true;
+       if (optarg)
+         spec_graph_file = AS_FILE_NAME (optarg);
+       break;
+
+      case 'v':
+       report_flag |= report_states;
+       break;
+
+      case 'S':
+       skeleton = AS_FILE_NAME (optarg);
+       break;
+
+      case 'I':
+       include = AS_FILE_NAME (optarg);
+       break;
+
+      case 'd':
+       /* Here, the -d and --defines options are differentiated.  */
+       defines_flag = true;
+       if (optarg)
+         spec_defines_file = AS_FILE_NAME (optarg);
+       break;
+
+      case 'l':
+       no_lines_flag = true;
+       break;
+
+      case LOCATIONS_OPTION:
+       locations_flag = true;
+       break;
+
+      case 'k':
+       token_table_flag = true;
+       break;
+
+      case 'n':
+       no_parser_flag = true;
+       break;
+
+      case 't':
+       debug_flag = true;
+       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':
+       report_argmatch (optarg);
+       break;
+
+      case 'T':
+       trace_argmatch (optarg);
+       break;
+
+      default:
+       usage (EXIT_FAILURE);
+      }
+
+  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]);

 }
 }