portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.

[bison.git] / src / print.c

diff --git a/src/print.c b/src/print.c
index fc35399375b36654ac34cb345602c77582b03586..d66fc38d5713830c992087e2d5c322ffec0fe732 100644 (file)
--- a/src/print.c
+++ b/src/print.c
@@ -1,7 +1,7 @@
 /* Print information on generated parser, for bison,
 
-   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005,
-   2007, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000-2005, 2007, 2009-2010 Free
+   Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -242,16 +242,16 @@ print_reductions (FILE *out, state *s)
 {
   transitions *trans = s->transitions;
   reductions *reds = s->reductions;
-  rule *default_rule = NULL;
+  rule *default_reduction = NULL;
   size_t width = 0;
   int i, j;
-  bool non_default_action = false;
+  bool default_reduction_only = true;
 
   if (reds->num == 0)
     return;
 
   if (yydefact[s->number] != 0)
-    default_rule = &rules[yydefact[s->number] - 1];
+    default_reduction = &rules[yydefact[s->number] - 1];
 
   bitset_zero (no_reduce_set);
   FOR_EACH_SHIFT (trans, i)
@@ -261,7 +261,7 @@ print_reductions (FILE *out, state *s)
       bitset_set (no_reduce_set, s->errs->symbols[i]->number);
 
   /* Compute the width of the lookahead token column.  */
-  if (default_rule)
+  if (default_reduction)
     width = strlen (_("$default"));
 
   if (reds->lookahead_tokens)
@@ -274,7 +274,7 @@ print_reductions (FILE *out, state *s)
            {
              if (! count)
                {
-                 if (reds->rules[j] != default_rule)
+                 if (reds->rules[j] != default_reduction)
                    max_length (&width, symbols[i]->tag);
                  count = true;
                }
@@ -299,16 +299,16 @@ print_reductions (FILE *out, state *s)
        bool defaulted = false;
        bool count = bitset_test (no_reduce_set, i);
         if (count)
-          non_default_action = true;
+          default_reduction_only = false;
 
        for (j = 0; j < reds->num; ++j)
          if (bitset_test (reds->lookahead_tokens[j], i))
            {
              if (! count)
                {
-                 if (reds->rules[j] != default_rule)
+                 if (reds->rules[j] != default_reduction)
                     {
-                      non_default_action = true;
+                      default_reduction_only = false;
                       print_reduction (out, width,
                                        symbols[i]->tag,
                                        reds->rules[j], true);
@@ -319,11 +319,11 @@ print_reductions (FILE *out, state *s)
                }
              else
                {
-                  non_default_action = true;
+                  default_reduction_only = false;
                  if (defaulted)
                    print_reduction (out, width,
                                     symbols[i]->tag,
-                                    default_rule, true);
+                                    default_reduction, true);
                  defaulted = false;
                  print_reduction (out, width,
                                   symbols[i]->tag,
@@ -332,15 +332,16 @@ print_reductions (FILE *out, state *s)
            }
       }
 
-  if (default_rule)
+  if (default_reduction)
     {
-      char *default_rules = muscle_percent_define_get ("lr.default_rules");
-      print_reduction (out, width, _("$default"), default_rule, true);
-      aver (0 == strcmp (default_rules, "all")
-            || (0 == strcmp (default_rules, "consistent")
-                && !non_default_action)
+      char *default_reductions =
+        muscle_percent_define_get ("lr.default-reductions");
+      print_reduction (out, width, _("$default"), default_reduction, true);
+      aver (0 == strcmp (default_reductions, "all")
+            || (0 == strcmp (default_reductions, "consistent")
+                && default_reduction_only)
             || (reds->num == 1 && reds->rules[0]->number == 0));
-      free (default_rules);
+      free (default_reductions);
     }
 }