-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
+# 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
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
-
+#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
-
+#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301 USA
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This skeleton produces a C++ class that encapsulates a C glr parser.
# user must initialize the first positions (in particular the
# filename member).
-
# We require a pure interface using locations.
-m4_define([b4_location_flag], [1])
-m4_define([b4_pure], [1])
+m4_define([b4_locations_flag], [1])
+m4_define([b4_pure_flag], [1])
+
+# The header is mandatory.
+b4_defines_if([],
+ [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]))
b4_parse_param)[
{
]b4_parse_param_use[]dnl
-[ yyparser.yy_symbol_print_ (yytype, yyvaluep]b4_location_if([, yylocationp])[);
+[ yyparser.yy_symbol_print_ (yytype, yyvaluep]b4_locations_if([, yylocationp])[);
}
]])
# Declare yyerror.
m4_append([b4_post_prologue],
-[/* Line __line__ of glr.cc. */
-b4_syncline([@oline@], [@ofile@])
+[b4_syncline([@oline@], [@ofile@])
b4_c_ansi_function_decl([yyerror],
[static void],
# Define yyerror.
m4_append([b4_epilogue],
-[/* Line __line__ of glr.cc. */
-b4_syncline([@oline@], [@ofile@])[
+[b4_syncline([@oline@], [@ofile@])[
/*------------------.
| Report an error. |
`------------------*/
]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[
{
}
]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[
m4_include(b4_pkgdatadir/[glr.c])
m4_popdef([b4_parse_param])
-
-@output @output_header_name@
-b4_copyright([C++ Skeleton parser for GLALR(1) parsing with Bison],
- [2002, 2003, 2004, 2005, 2006])[
+m4_divert_push(0)
+@output(b4_spec_defines_file@)
+b4_copyright([Skeleton interface for Bison GLR parsers in C++],
+ [2002, 2003, 2004, 2005, 2006])[
/* C++ GLR parser skeleton written by Akim Demaille. */
#ifndef PARSER_HEADER_H
# define PARSER_HEADER_H
+]b4_percent_code_get([[requires]])[
+
#include <string>
#include <iostream>
class location;
}
-/* Copy the first part of user declarations. */
-]b4_pre_prologue[
-
-]/* Line __line__ of glr.cc. */
-b4_syncline([@oline@], [@ofile@])[
-
#include "location.hh"
/* Enabling traces. */
#ifndef YYDEBUG
-# define YYDEBUG ]b4_debug[
-#endif
-
-/* Enabling verbose error messages. */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE ]b4_error_verbose[
-#endif
-
-/* Enabling the token table. */
-#ifndef YYTOKEN_TABLE
-# define YYTOKEN_TABLE ]b4_token_table[
-#endif
-
-#if 0
-/* Copy the second part of user declarations. */
-]b4_post_prologue[
-
-]/* Line __line__ of glr.cc. */
-
-b4_syncline([@oline@], [@ofile@])[
+# define YYDEBUG ]b4_debug_flag[
#endif
/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
#ifndef YYSTYPE
]m4_ifdef([b4_stype],
[ union semantic_type
-b4_stype
-/* Line __line__ of lalr1.cc. */
-b4_syncline([@oline@], [@ofile@])
- ;],
-[ typedef int semantic_type;])[
+ {
+b4_user_stype
+ };],
+[m4_if(b4_tag_seen_flag, 0,
+[[ typedef int semantic_type;]],
+[[ typedef YYSTYPE semantic_type;]])])[
#else
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
{
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.
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
}
-#endif /* ! defined PARSER_HEADER_H */]
+]b4_percent_code_get([[provides]])[]dnl
+
+[#endif /* ! defined PARSER_HEADER_H */]
+m4_divert_pop(0)
projects / bison.git / blobdiff