2007-02-27 Paolo Bonzini <bonzini@gnu.org>

[bison.git] / data / glr.cc

diff --git a/data/glr.cc b/data/glr.cc
index a3cafe8e0a05d27197e1ffb4d264d1306bc5a685..f653c416a751d13c424e76d324591019104611f3 100644 (file)
--- a/data/glr.cc
+++ b/data/glr.cc
@@ -1,7 +1,8 @@
-m4_divert(-1)                                                       -*- C -*-
+                                                                    -*- C -*-
 
 # C++ GLR skeleton for Bison
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
+# Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -52,11 +53,15 @@ m4_define([b4_pure_flag],      [1])
 
 # The header is mandatory.
 b4_defines_if([],
-              [m4_fatal(b4_skeleton[: using %defines is mandatory])])
+              [b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
 
 m4_include(b4_pkgdatadir/[c++.m4])
 m4_include(b4_pkgdatadir/[location.cc])
 
+m4_define([b4_parser_class_name],
+          [b4_percent_define_get([[parser_class_name]])])
+m4_define([b4_namespace],
+          [b4_percent_define_get([[namespace]])])
 
 # Save the parse parameters.
 m4_define([b4_parse_param_orig], m4_defn([b4_parse_param]))
@@ -122,8 +127,12 @@ namespace ]b4_namespace[
 ]dnl In this section, the parse param are the original parse_params.
 m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
 [  /// Build a parser object.
-  ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)
-    : yycdebug_ (&std::cerr)]b4_parse_param_cons[
+  ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
+    :])[
+#if YYDEBUG
+    ]m4_ifset([b4_parse_param], [  ], [ :])[yydebug_ (false),
+      yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[
+#endif]b4_parse_param_cons[
   {
   }
 
@@ -185,16 +194,16 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
   ]b4_parser_class_name[::debug_level_type
   ]b4_parser_class_name[::debug_level () const
   {
-    return ::yydebug;
+    return yydebug_;
   }
 
   void
   ]b4_parser_class_name[::set_debug_level (debug_level_type l)
   {
-    ::yydebug = l;
+    yydebug_ = l;
   }
 
-#endif /* ! YYDEBUG */
+#endif
 ]m4_popdef([b4_parse_param])dnl
 [} // namespace ]b4_namespace[
 
@@ -212,7 +221,8 @@ m4_defn([b4_parse_param])))],
 m4_include(b4_pkgdatadir/[glr.c])
 m4_popdef([b4_parse_param])
 
-@output @output_header_name@
+m4_divert_push(0)
+@output(b4_spec_defines_file@)
 b4_copyright([Skeleton interface for Bison GLR parsers in C++],
   [2002, 2003, 2004, 2005, 2006])[
 
@@ -221,9 +231,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C++],
 #ifndef PARSER_HEADER_H
 # define PARSER_HEADER_H
 
-]m4_ifdef([b4_start_header],
-[[/* Copy the %start-header blocks.  */
-]b4_user_start_header])[
+]b4_percent_code_get([[requires]])[
 
 #include <string>
 #include <iostream>
@@ -244,19 +252,6 @@ namespace ]b4_namespace[
 # define YYDEBUG ]b4_debug_flag[
 #endif
 
-/* Enabling verbose error messages.  */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE ]b4_error_verbose_flag[
-#endif
-
-/* Enabling the token table.  */
-#ifndef YYTOKEN_TABLE
-# define YYTOKEN_TABLE ]b4_token_table[
-#endif
-
 /* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
    If N is 0, then set CURRENT to the empty location which ends
    the previous symbol: RHS[0] (always defined).  */
@@ -286,8 +281,9 @@ namespace ]b4_namespace[
 #ifndef YYSTYPE
 ]m4_ifdef([b4_stype],
 [    union semantic_type
+    {
 b4_user_stype
-       ;],
+    };],
 [m4_if(b4_tag_seen_flag, 0,
 [[    typedef int semantic_type;]],
 [[    typedef YYSTYPE semantic_type;]])])[
@@ -295,7 +291,7 @@ b4_user_stype
     typedef YYSTYPE semantic_type;
 #endif
     /// Symbol locations.
-    typedef ]b4_location_type[ location_type;
+    typedef ]b4_percent_define_get([[location_type]])[ location_type;
     /// Tokens.
     struct token
     {
@@ -350,7 +346,10 @@ b4_user_stype
                                   const semantic_type* yyvaluep,
                                   const location_type* yylocationp);
   private:
-#endif /* ! YYDEBUG */
+    /* Debugging.  */
+    int yydebug_;
+    std::ostream* yycdebug_;
+#endif
 
 
     /// \brief Reclaim the memory associated to a symbol.
@@ -363,13 +362,11 @@ b4_user_stype
                             semantic_type* yyvaluep,
                             location_type* yylocationp);
 
-    /* Debugging.  */
-    std::ostream* yycdebug_;
 ]b4_parse_param_vars[
   };
 
 ]dnl Redirections for glr.c.
-m4_ifset([b4_global_tokens_and_yystype],
+b4_percent_define_flag_if([[global_tokens_and_yystype]],
 [b4_token_defines(b4_tokens)])
 [
 #ifndef YYSTYPE
@@ -381,8 +378,7 @@ m4_ifset([b4_global_tokens_and_yystype],
 
 }
 
-]m4_ifdef([b4_end_header],
-[[/* Copy the %end-header blocks.  */
-]b4_end_header])[]dnl
+]b4_percent_code_get([[provides]])[]dnl
 
 [#endif /* ! defined PARSER_HEADER_H */]
+m4_divert_pop(0)