# C++ skeleton for Bison
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-# Free Software Foundation, Inc.
+# Copyright (C) 2002-2010 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
m4_pushdef([b4_copyright_years],
- [2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009])
+ [2002-2010])
m4_define([b4_parser_class_name],
[b4_percent_define_get([[parser_class_name]])])
b4_defines_if([],
[b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
-b4_locations_if(
-[# Backward compatibility.
-m4_define([b4_location_constructors])
-m4_include(b4_pkgdatadir/[location.cc])])
+b4_locations_if([b4_percent_define_ifdef([[location_type]], [],
+ [# Backward compatibility.
+ m4_define([b4_location_constructors])
+ m4_include(b4_pkgdatadir/[location.cc])])])
m4_include(b4_pkgdatadir/[stack.hh])
b4_variant_if([m4_include(b4_pkgdatadir/[variant.hh])])
#include <string>
#include <iostream>
#include "stack.hh"
+]b4_locations_if([b4_percent_define_ifdef([[location_type]], [],
+ [[#include "location.hh"]])])[
-]b4_namespace_open[
-]b4_locations_if([ class position;
- class location;])[
-]b4_variant_if([b4_variant_define])[
-]b4_namespace_close[
-
-]b4_locations_if([#include "location.hh"])[
+]b4_variant_if([b4_namespace_open
+b4_variant_define
+b4_namespace_close])[
/* Enabling traces. */
#ifndef YYDEBUG
b4_percent_code_get[]dnl
[#ifndef YY_
-# if YYENABLE_NLS
+# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* FIXME: INFRINGES ON USER NAME SPACE */
# define YY_(msgid) dgettext ("bison-runtime", msgid)
symbol_type yyla;]b4_locations_if([[
/// The locations where the error started and ended.
- stack_symbol_type yyerror_range[2];]])[
+ stack_symbol_type yyerror_range[3];]])[
/// $$ and @@$.
stack_symbol_type yylhs;
}
]b4_locations_if([[
- yyerror_range[0].location = yyla.location;]])[
+ yyerror_range[1].location = yyla.location;]])[
if (yyerrstatus_ == 3)
{
/* If just tried and failed to reuse lookahead token after an
/* Return failure if at end of input. */
if (yyla.type == yyeof_)
YYABORT;
- else
+ else if (!yyempty)
{
yy_destroy_ ("Error: discarding", yyla);
yyempty = true;
code. */
if (false)
goto yyerrorlab;]b4_locations_if([[
- yyerror_range[0].location = yystack_[yylen - 1].location;]])b4_variant_if([[
+ yyerror_range[1].location = yystack_[yylen - 1].location;]])b4_variant_if([[
/* $$ was initialized before running the user action. */
yy_destroy_ ("Error: discarding", yylhs);]])[
/* Do not reclaim the symbols of the rule which action triggered
if (yystack_.size () == 1)
YYABORT;
]b4_locations_if([[
- yyerror_range[0].location = yystack_[0].location;]])[
+ yyerror_range[1].location = yystack_[0].location;]])[
yy_destroy_ ("Error: popping", yystack_[0]);
yypop_ ();
YY_STACK_PRINT ();
}
]b4_locations_if([[
- yyerror_range[1].location = yyla.location;
- YYLLOC_DEFAULT (error_token.location, (yyerror_range - 1), 2);]])[
+ yyerror_range[2].location = yyla.location;
+ YYLLOC_DEFAULT (error_token.location, yyerror_range, 2);]])[
/* Shift the error token. */
error_token.state = yyn;