maint: run "make update-copyright"

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 77f147d35875f7e9c8f74b9168695bdfc046c98a..e750bfd4df9c4d078f44ad07c13f4f5e09ca43ce 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -1,7 +1,7 @@
 /* Parse command line arguments for Bison.
 
    Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
-   2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+   2005, 2006, 2007, 2008-2009 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -20,7 +20,6 @@
 
 #include <config.h>
 #include "system.h"
-#include "revision.h"
 #include "output.h"
 
 #include <argmatch.h>
@@ -71,9 +70,9 @@ static struct bison_language const valid_languages[] = {
   { "", "", "", "", false }
 };
 
-static int skeleton_prio = 2;
+int skeleton_prio = default_prio;
 const char *skeleton = NULL;
-static int language_prio = 2;
+int language_prio = default_prio;
 struct bison_language const *language = &valid_languages[0];
 const char *include = NULL;
 
@@ -253,6 +252,9 @@ Generate LALR(1) and GLR parsers.\n\
 
       fputs (_("\
 Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
+The same is true for optional arguments.\n\
 "), stdout);
 
       fputs (_("\
@@ -263,13 +265,14 @@ Operation modes:\n\
       --print-localedir      output directory containing locale-dependent data\n\
       --print-datadir        output directory containing skeletons and XSLT\n\
   -y, --yacc                 emulate POSIX Yacc\n\
-  -W, --warnings=[CATEGORY]  report the warnings falling in CATEGORY\n\
+  -W, --warnings[=CATEGORY]  report the warnings falling in CATEGORY\n\
 \n\
 "), stdout);
 
       fputs (_("\
 Parser:\n\
   -L, --language=LANGUAGE    specify the output programming language\n\
+                             (this is an experimental feature)\n\
   -S, --skeleton=FILE        specify the skeleton to use\n\
   -t, --debug                instrument the parser for debugging\n\
       --locations            enable locations computation\n\
@@ -279,9 +282,12 @@ Parser:\n\
 \n\
 "), stdout);
 
+      /* Keep -d and --defines separate so that ../build-aux/cross-options.pl
+       * won't assume that -d also takes an argument.  */
       fputs (_("\
 Output:\n\
-  -d, --defines[=FILE]       also produce a header file\n\
+      --defines[=FILE]       also produce a header file\n\
+  -d                         likewise but cannot specify FILE (for POSIX Yacc)\n\
   -r, --report=THINGS        also produce details on the automaton\n\
       --report-file=FILE     write report to FILE\n\
   -v, --verbose              same as `--report=state'\n\
@@ -332,7 +338,6 @@ version (void)
      continue.  */
   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);
 
@@ -410,7 +415,7 @@ static char const short_options[] =
   "S:"
   "T::"
   "V"
-  "W"
+  "W::"
   "b:"
   "d"
   "e"
@@ -503,46 +508,53 @@ getargs (int argc, char *argv[])
        /* Certain long options cause getopt_long to return 0.  */
        break;
 
-      case 'b':
-       spec_file_prefix = AS_FILE_NAME (optarg);
-       break;
-
-      case 'g':
-       /* Here, the -g and --graph=FILE options are differentiated.  */
-       graph_flag = true;
+      case 'd':
+       /* Here, the -d and --defines options are differentiated.  */
+       defines_flag = true;
        if (optarg)
-         spec_graph_file = xstrdup (AS_FILE_NAME (optarg));
+         spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
        break;
 
-      case 'x':
-       /* Here, the -x and --xml=FILE options are differentiated.  */
-       xml_flag = true;
-       if (optarg)
-         spec_xml_file = xstrdup (AS_FILE_NAME (optarg));
+      case 'I':
+       include = AS_FILE_NAME (optarg);
        break;
 
-      case 'h':
-       usage (EXIT_SUCCESS);
-
       case 'L':
-       language_argmatch (optarg, 0, NULL);
+       language_argmatch (optarg, command_line_prio, NULL);
        break;
 
       case 'S':
-       skeleton_arg (AS_FILE_NAME (optarg), 0, NULL);
+       skeleton_arg (AS_FILE_NAME (optarg), command_line_prio, NULL);
        break;
 
-      case 'I':
-       include = AS_FILE_NAME (optarg);
+      case 'T':
+       FLAGS_ARGMATCH (trace, optarg);
        break;
 
-      case 'd':
-       /* Here, the -d and --defines options are differentiated.  */
-       defines_flag = true;
+      case 'V':
+       version ();
+       exit (EXIT_SUCCESS);
+
+      case 'W':
        if (optarg)
-         spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
+         FLAGS_ARGMATCH (warnings, optarg);
+       else
+         warnings_flag |= warnings_all;
+       break;
+
+      case 'b':
+       spec_file_prefix = AS_FILE_NAME (optarg);
+       break;
+
+      case 'g':
+       graph_flag = true;
+       if (optarg)
+         spec_graph_file = xstrdup (AS_FILE_NAME (optarg));
        break;
 
+      case 'h':
+       usage (EXIT_SUCCESS);
+
       case 'k':
        token_table_flag = true;
        break;
@@ -563,35 +575,22 @@ getargs (int argc, char *argv[])
        FLAGS_ARGMATCH (report, optarg);
        break;
 
-      case REPORT_FILE_OPTION:
-       spec_verbose_file = xstrdup (AS_FILE_NAME (optarg));
-       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;
+      case 'x':
+       xml_flag = true;
+       if (optarg)
+         spec_xml_file = xstrdup (AS_FILE_NAME (optarg));
        break;
 
-      case 'W':
-       if (optarg)
-         FLAGS_ARGMATCH (warnings, optarg);
-       else
-         warnings_flag |= warnings_all;
+      case 'y':
+       yacc_flag = true;
        break;
 
       case LOCATIONS_OPTION:
@@ -606,6 +605,10 @@ getargs (int argc, char *argv[])
        printf ("%s\n", compute_pkgdatadir ());
        exit (EXIT_SUCCESS);
 
+      case REPORT_FILE_OPTION:
+       spec_verbose_file = xstrdup (AS_FILE_NAME (optarg));
+       break;
+
       default:
        usage (EXIT_FAILURE);
       }