Comment changes.

[bison.git] / src / symtab.c

diff --git a/src/symtab.c b/src/symtab.c
index 8385135136781b20507d0cc8fd67a9b2870cb0ad..13b755491ce74aba30938379b3e73bff6783265f 100644 (file)
--- a/src/symtab.c
+++ b/src/symtab.c
@@ -1,7 +1,7 @@
 /* Symbol table manager for Bison.
 
 /* Symbol table manager for Bison.
 

-   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004, 2005, 2006, 2007 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008
+   Free Software Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -168,6 +168,23 @@ symbol_type_set (symbol *sym, uniqstr type_name, location loc)
     }
 }
 
     }
 }
 

+/*-----------------------------------.
+| Get the CLASS associated with SYM. |
+`-----------------------------------*/
+
+const char *
+symbol_class_get_string (symbol *sym)
+{
+  if (sym->class)
+    {
+      if (sym->class == token_sym)
+       return "terminal";
+      else if (sym->class == nterm_sym)
+       return "nonterminal";
+    }
+  return "unknown";
+}
+

 
 /*-----------------------------------------.
 | Set the DESTRUCTOR associated with SYM.  |
 
 /*-----------------------------------------.
 | Set the DESTRUCTOR associated with SYM.  |


@@ -341,8 +358,6 @@ symbol_user_token_number_set (symbol *sym, int user_token_number, location loc)
 {
   int *user_token_numberp;
 
 {
   int *user_token_numberp;
 

-  aver (sym->class == token_sym);
-

   if (sym->user_token_number != USER_NUMBER_ALIAS)
     user_token_numberp = &sym->user_token_number;
   else
   if (sym->user_token_number != USER_NUMBER_ALIAS)
     user_token_numberp = &sym->user_token_number;
   else


@@ -821,9 +836,8 @@ symbols_token_translations_init (void)
   token_translations = xnmalloc (max_user_token_number + 1,
                                 sizeof *token_translations);
 
   token_translations = xnmalloc (max_user_token_number + 1,
                                 sizeof *token_translations);
 

-  /* Initialize all entries for literal tokens to 2, the internal
-     token number for $undefined, which represents all invalid inputs.
-     */
+  /* Initialize all entries for literal tokens to the internal token
+     number for $undefined, which represents all invalid inputs.  */

   for (i = 0; i < max_user_token_number + 1; i++)
     token_translations[i] = undeftoken->number;
   symbols_do (symbol_translation_processor, NULL);
   for (i = 0; i < max_user_token_number + 1; i++)
     token_translations[i] = undeftoken->number;
   symbols_do (symbol_translation_processor, NULL);