Provide an additional sub-message for clarity.

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 962dad4db1ff8f7fa6c31bf94ab1009bb0282375..876130e02dffa6fe06868859d9760e04bbd99fe6 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -283,15 +283,16 @@ Operation modes:\n\
 
       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 location support\n\
-  -D, --define=NAME[=VALUE]  same as `%define NAME \"VALUE\"'\n\
-  -p, --name-prefix=PREFIX   prepend PREFIX to the external symbols\n\
-  -l, --no-lines             don't generate `#line' directives\n\
-  -k, --token-table          include a table of token names\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 location support\n\
+  -D, --define=NAME[=VALUE]        similar to `%define NAME \"VALUE\"'\n\
+  -F, --force-define=NAME[=VALUE]  override `%define NAME \"VALUE\"'\n\
+  -p, --name-prefix=PREFIX         prepend PREFIX to the external symbols\n\
+  -l, --no-lines                   don't generate `#line' directives\n\
+  -k, --token-table                include a table of token names\n\
 \n\
 "), stdout);
 
@@ -379,11 +380,7 @@ skeleton_arg (char const *arg, int prio, location loc)
       skeleton = arg;
     }
   else if (prio == skeleton_prio)
-    {
-      char const *msg =
-       _("multiple skeleton declarations are invalid");
-      complain_at (loc, msg);
-    }
+    complain_at (loc, _("multiple skeleton declarations are invalid"));
 }
 
 void
@@ -419,6 +416,7 @@ language_argmatch (char const *arg, int prio, location loc)
    Should be computed from long_options.  */
 static char const short_options[] =
   "D:"
+  "F:"
   "L:"
   "S:"
   "T::"
@@ -486,6 +484,7 @@ static struct option const long_options[] =
   /* Parser.  */
   { "debug",         no_argument,               0,   't' },
   { "define",        required_argument,         0,   'D' },
+  { "force-define",   required_argument,         0,   'F' },
   { "locations",      no_argument,              0, LOCATIONS_OPTION },
   { "no-lines",       no_argument,               0,   'l' },
   { "raw",            no_argument,               0,     0 },
@@ -534,13 +533,16 @@ getargs (int argc, char *argv[])
        break;
 
       case 'D': /* -DNAME[=VALUE]. */
+      case 'F': /* -FNAME[=VALUE]. */
         {
           char* name = optarg;
           char* value = strchr (optarg, '=');
           if (value)
             *value++ = 0;
           muscle_percent_define_insert (name, command_line_location (),
-                                        value ? value : "");
+                                        value ? value : "",
+                                        c == 'D' ? MUSCLE_PERCENT_DEFINE_D
+                                                 : MUSCLE_PERCENT_DEFINE_F);
         }
        break;