* src/reader.c (symbols_output): New, extracted from...

[bison.git] / src / reader.c

diff --git a/src/reader.c b/src/reader.c
index 80ed485a3621dc63ff317c31295c488ed4ae4022..03c0d31197ea3ee3902ca5eceaeacb2b8c799750 100644 (file)
--- a/src/reader.c
+++ b/src/reader.c
@@ -724,7 +724,6 @@ token_buffer);
        }
 
       prev = t;
-
     }
 }
 
@@ -852,7 +851,7 @@ parse_thong_decl (void)
   token_t token;
   struct bucket *symbol;
   char *typename = 0;
-  int usrtoknum = 0;
+  int usrtoknum = SUNDEF;
 
   token = lex ();              /* fetch typename or first token */
   if (token == tok_typename)
@@ -963,16 +962,13 @@ parse_skel_decl (void)
 static void
 read_declarations (void)
 {
-  int c;
-  int tok;
-
   for (;;)
     {
-      c = skip_white_space ();
+      int c = skip_white_space ();
 
       if (c == '%')
        {
-         tok = parse_percent_token ();
+         token_t tok = parse_percent_token ();
 
          switch (tok)
            {
@@ -1034,6 +1030,13 @@ read_declarations (void)
            case tok_noop:
              break;
 
+           case tok_stropt:
+           case tok_intopt:
+           case tok_obsolete:
+           case tok_illegal:
+             abort ();
+             break;
+
            default:
              complain (_("unrecognized: %s"), token_buffer);
              skip_to_char ('%');
@@ -1724,6 +1727,9 @@ token_translations_init (void)
       /* A token string alias? */
       if (bp->user_token_number == SALIAS)
        continue;
+
+      assert (bp->user_token_number != SUNDEF);
+
       /* A token which translation has already been set? */
       if (token_translations[bp->user_token_number] != 2)
        complain (_("tokens %s and %s both assigned number %d"),
@@ -1810,7 +1816,7 @@ packsymbols (void)
 
       if (bp->class == token_sym)
        {
-         if (bp->user_token_number == 0)
+         if (bp->user_token_number == SUNDEF)
            bp->user_token_number = ++last_user_token_number;
          if (bp->user_token_number > max_user_token_number)
            max_user_token_number = bp->user_token_number;
@@ -1826,6 +1832,22 @@ packsymbols (void)
 
   error_token_number = errtoken->value;
 
+  if (startval->class == unknown_sym)
+    fatal (_("the start symbol %s is undefined"), startval->tag);
+  else if (startval->class == token_sym)
+    fatal (_("the start symbol %s is a token"), startval->tag);
+
+  start_symbol = startval->value;
+}
+
+
+/*-----------------------------------.
+| Output definition of token names.  |
+`-----------------------------------*/
+
+static void
+symbols_output (void)
+{
   {
     struct obstack tokendefs;
     obstack_init (&tokendefs);
@@ -1840,13 +1862,6 @@ packsymbols (void)
     output_token_defines (&table_obstack);
 #endif
 
-  if (startval->class == unknown_sym)
-    fatal (_("the start symbol %s is undefined"), startval->tag);
-  else if (startval->class == token_sym)
-    fatal (_("the start symbol %s is a token"), startval->tag);
-
-  start_symbol = startval->value;
-
   if (defines_flag)
     {
       output_token_defines (&defines_obstack);
@@ -2014,6 +2029,7 @@ reader (void)
   /* Assign the symbols their symbol numbers.  Write #defines for the
      token symbols into FDEFINES if requested.  */
   packsymbols ();
+  symbols_output ();
   /* Convert the grammar into the format described in gram.h.  */
   packgram ();
 }