New file: skeleton for GLR (Generalized LR) parser.

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 3a74ea1dc74405310d2993b5596d67a241495be3..5789152ab32013b8034e7fc9dca0f3e1a49d093e 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -1,5 +1,6 @@
 /* Parse command line arguments for bison.
-   Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc.
+   Copyright 1984, 1986, 1989, 1992, 2000, 2001, 2002
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -18,22 +19,21 @@
    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
    02111-1307, USA.  */
 
-#include <stdio.h>
-#include "getopt.h"
 #include "system.h"
-#include "files.h"
+#include "getopt.h"
+#include "argmatch.h"
 #include "complain.h"
 #include "getargs.h"
-#include "xalloc.h"
 #include "options.h"
+#include "files.h"
 
 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 verbose_flag = 0;
 int yacc_flag = 0;     /* for -y */
 int graph_flag = 0;
 int trace_flag = 0;
@@ -43,6 +43,51 @@ const char *include = NULL;
 
 extern char *program_name;
 
+/*----------------------.
+| --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",
+  "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_lookaheads, report_states | report_lookaheads,
+  report_states | report_solved_conflicts,
+  report_all
+};
+
+
+static void
+report_argmatch (char *args)
+{
+  ARGMATCH_ASSERT (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, ",")));
+}
+
 /*---------------------------.
 | Display the help message.  |
 `---------------------------*/
@@ -88,13 +133,25 @@ Parser:\n\
   fputs (_("\
 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\
   -o, --output=FILE          leave output to FILE\n\
   -g, --graph                also produce a VCG description of the automaton\n\
 "), stream);
   putc ('\n', stream);
 
+  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\
+  `lookahead'    explicitly associate lookaheads to items\n\
+  `solved'       describe shift/reduce conflicts solving\n\
+  `all'          include all the above information\n\
+  `none'         disable the report\n\
+"), stream);
+  putc ('\n', stream);
+
   fputs (_("\
 Report bugs to <bug-bison@gnu.org>.\n"), stream);
 }
@@ -109,14 +166,13 @@ version (FILE *stream)
 {
   /* Some efforts were made to ease the translators' task, please
      continue.  */
-  fprintf (stream, _("\
-bison (GNU Bison) %s"), VERSION);
+  fprintf (stream, _("bison (GNU Bison) %s"), VERSION);
   putc ('\n', stream);
+  fputs (_("Written by Robert Corbett and Richard Stallman.\n"), stream);
   putc ('\n', stream);
 
-  fputs (_("\
-Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc.\n"),
-        stream);
+  fprintf (stream,
+          _("Copyright (C) %d Free Software Foundation, Inc.\n"), 2002);
 
   fputs (_("\
 This is free software; see the source for copying conditions.  There is NO\n\
@@ -170,7 +226,7 @@ getargs (int argc, char *argv[])
        break;
 
       case 'v':
-       verbose_flag = 1;
+       report_flag |= report_states;
        break;
 
       case 'S':
@@ -196,10 +252,6 @@ getargs (int argc, char *argv[])
        token_table_flag = 1;
        break;
 
-      case 'r':
-       fatal (_("`%s' is no longer supported"), "--raw");
-       break;
-
       case 'n':
        no_parser_flag = 1;
        break;
@@ -220,6 +272,10 @@ getargs (int argc, char *argv[])
        spec_name_prefix = optarg;
        break;
 
+      case 'r':
+       report_argmatch (optarg);
+       break;
+
       default:
        fprintf (stderr, _("Try `%s --help' for more information.\n"),
                 program_name);