Convert underscores to dashes in some %define variable names.

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 45557733c6c5770168aea0cf5516883f98f8cd04..962dad4db1ff8f7fa6c31bf94ab1009bb0282375 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.
 
@@ -176,10 +176,12 @@ static const char * const trace_args[] =
   "grammar    - reading, reducing the grammar",
   "resource   - memory consumption (where available)",
   "sets       - grammar sets: firsts, nullable etc.",
+  "muscles    - m4 definitions passed to the skeleton",
   "tools      - m4 invocation",
   "m4         - m4 traces",
   "skeleton   - skeleton postprocessing",
   "time       - time consumption",
+  "ielr       - IELR conversion",
   "all        - all of the above",
   0
 };
@@ -194,10 +196,12 @@ static const int trace_types[] =
   trace_grammar,
   trace_resource,
   trace_sets,
+  trace_muscles,
   trace_tools,
   trace_m4,
   trace_skeleton,
   trace_time,
+  trace_ielr,
   trace_all
 };
 
@@ -214,7 +218,7 @@ static const char * const warnings_args[] =
      that argmatch_valid be more readable.  */
   "none            - no warnings",
   "midrule-values  - unset or unused midrule values",
-  "yacc            - incompatibilities with POSIX YACC",
+  "yacc            - incompatibilities with POSIX Yacc",
   "all             - all of the above",
   "error           - warnings are errors",
   0
@@ -246,9 +250,15 @@ usage (int status)
             program_name);
   else
     {
+      /* For ../build-aux/cross-options.pl to work, use the format:
+               ^  -S, --long[=ARGS] (whitespace)
+        A --long option is required.
+        Otherwise, add exceptions to ../build-aux/cross-options.pl.  */
+
       printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
       fputs (_("\
-Generate LALR(1) and GLR parsers.\n\
+Generate a deterministic or GLR parser employing LALR(1), IELR(1), or\n\
+canonical LR(1) parser tables.\n\
 \n\
 "), stdout);
 
@@ -305,7 +315,7 @@ Output:\n\
       fputs (_("\
 Warning categories include:\n\
   `midrule-values'  unset or unused midrule values\n\
-  `yacc'            incompatibilities with POSIX YACC\n\
+  `yacc'            incompatibilities with POSIX Yacc\n\
   `all'             all the warnings\n\
   `no-CATEGORY'     turn off warnings in CATEGORY\n\
   `none'            turn off all the warnings\n\
@@ -529,9 +539,8 @@ getargs (int argc, char *argv[])
           char* value = strchr (optarg, '=');
           if (value)
             *value++ = 0;
-          else
-            value = "";
-          muscle_percent_define_insert (name, command_line_location (), value);
+          muscle_percent_define_insert (name, command_line_location (),
+                                        value ? value : "");
         }
        break;
 
@@ -654,3 +663,11 @@ getargs (int argc, char *argv[])
   current_file = grammar_file = uniqstr_new (argv[optind]);
   MUSCLE_INSERT_C_STRING ("file_name", grammar_file);
 }
+
+void
+tr (char *s, char from, char to)
+{
+  for (; *s; s++)
+    if (*s == from)
+      *s = to;
+}