X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/877519f8395b7a7610e52e7885dca4ede8984570..b6e3facf99b007dc0ccb9c615f6d9aba8d14a73f:/src/parse-gram.y

diff --git a/src/parse-gram.y b/src/parse-gram.y
index bf6af663..f4587351 100644
--- a/src/parse-gram.y
+++ b/src/parse-gram.y
@@ -1,6 +1,6 @@
 %{/* Bison Grammar Parser                             -*- C -*-
 
-   Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -20,6 +20,7 @@
    02110-1301  USA
 */
 
+#include <config.h>
 #include "system.h"
 
 #include "complain.h"
@@ -205,7 +206,11 @@ declaration:
   grammar_declaration
 | PROLOGUE                                 { prologue_augment ($1, @1); }
 | "%debug"                                 { debug_flag = true; }
-| "%define" string_content                 { muscle_insert ($2, "1"); }
+| "%define" string_content
+    {
+      static char one[] = "1";
+      muscle_insert ($2, one);
+    }
 | "%define" string_content string_content  { muscle_insert ($2, $3); }
 | "%defines"                               { defines_flag = true; }
 | "%error-verbose"                         { error_verbose = true; }
@@ -213,14 +218,14 @@ declaration:
 | "%expect-rr" INT			   { expected_rr_conflicts = $2; }
 | "%file-prefix" "=" string_content        { spec_file_prefix = $3; }
 | "%glr-parser"
-  {
-    nondeterministic_parser = true;
-    glr_parser = true;
-  }
+    {
+      nondeterministic_parser = true;
+      glr_parser = true;
+    }
 | "%initial-action {...}"
-  {
-    muscle_code_grow ("initial_action", $1, @1);
-  }
+    {
+      muscle_code_grow ("initial_action", $1, @1);
+    }
 | "%lex-param {...}"			   { add_param ("lex_param", $1, @1); }
 | "%locations"                             { locations_flag = true; }
 | "%name-prefix" "=" string_content        { spec_name_prefix = $3; }
@@ -246,9 +251,19 @@ grammar_declaration:
     }
 | "%union {...}"
     {
+      char const *body = $1;
+
+      if (typed)
+	{
+	  /* Concatenate the union bodies, turning the first one's
+	     trailing '}' into '\n', and omitting the second one's '{'.  */
+	  char *code = muscle_find ("stype");
+	  code[strlen (code) - 1] = '\n';
+	  body++;
+	}
+
       typed = true;
-      MUSCLE_INSERT_INT ("stype_line", @1.start.line);
-      muscle_insert ("stype", $1);
+      muscle_code_grow ("stype", body, @1);
     }
 | "%destructor {...}" symbols.1
     {
@@ -335,24 +350,24 @@ symbol_def:
      }
 | ID
      {
-       symbol_class_set ($1, current_class, @1);
+       symbol_class_set ($1, current_class, @1, true);
        symbol_type_set ($1, current_type, @1);
      }
 | ID INT
     {
-      symbol_class_set ($1, current_class, @1);
+      symbol_class_set ($1, current_class, @1, true);
       symbol_type_set ($1, current_type, @1);
       symbol_user_token_number_set ($1, $2, @2);
     }
 | ID string_as_id
     {
-      symbol_class_set ($1, current_class, @1);
+      symbol_class_set ($1, current_class, @1, true);
       symbol_type_set ($1, current_type, @1);
       symbol_make_alias ($1, $2, @$);
     }
 | ID INT string_as_id
     {
-      symbol_class_set ($1, current_class, @1);
+      symbol_class_set ($1, current_class, @1, true);
       symbol_type_set ($1, current_type, @1);
       symbol_user_token_number_set ($1, $2, @2);
       symbol_make_alias ($1, $3, @$);
@@ -380,10 +395,6 @@ grammar:
 rules_or_grammar_declaration:
   rules
 | grammar_declaration ";"
-    {
-      if (yacc_flag)
-	complain_at (@$, _("POSIX forbids declarations in the grammar"));
-    }
 | error ";"
     {
       yyerrok;
@@ -395,14 +406,14 @@ rules:
 ;
 
 rhses.1:
-  rhs                { grammar_rule_end (@1); }
-| rhses.1 "|" rhs    { grammar_rule_end (@3); }
+  rhs                { grammar_current_rule_end (@1); }
+| rhses.1 "|" rhs    { grammar_current_rule_end (@3); }
 | rhses.1 ";"
 ;
 
 rhs:
   /* Nothing.  */
-    { grammar_rule_begin (current_lhs, current_lhs_location); }
+    { grammar_current_rule_begin (current_lhs, current_lhs_location); }
 | rhs symbol
     { grammar_current_rule_symbol_append ($2, @2); }
 | rhs action
@@ -430,7 +441,7 @@ string_as_id:
   STRING
     {
       $$ = symbol_get (quotearg_style (c_quoting_style, $1), @1);
-      symbol_class_set ($$, token_sym, @1);
+      symbol_class_set ($$, token_sym, @1, false);
     }
 ;