X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/193d7c7054ba7197b0789e14965b739162319b5e..ad5feac4e2cd16569d8586f2eac6a9efeeadc038:/data/glr.cc?ds=sidebyside diff --git a/data/glr.cc b/data/glr.cc index 9322cf5e..12f629a4 100644 --- a/data/glr.cc +++ b/data/glr.cc @@ -1,22 +1,21 @@ -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 . # This skeleton produces a C++ class that encapsulates a C glr parser. @@ -46,14 +45,21 @@ m4_divert(-1) -*- C -*- # 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])) @@ -80,15 +86,14 @@ m4_define([b4_yy_symbol_print_generate], 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], @@ -99,8 +104,7 @@ b4_c_ansi_function_decl([yyerror], # Define yyerror. m4_append([b4_epilogue], -[/* Line __line__ of glr.cc. */ -b4_syncline([@oline@], [@ofile@])[ +[b4_syncline([@oline@], [@ofile@])[ /*------------------. | Report an error. | `------------------*/ @@ -121,8 +125,12 @@ 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[ { } @@ -184,16 +192,16 @@ 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[ @@ -211,29 +219,18 @@ 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]) -[ -/* As a special exception, you may create a larger work that contains - part or all of the Bison parser skeleton and distribute that work - under terms of your choice, so long as that work isn't itself a - parser generator using the skeleton or a modified version thereof - as a parser skeleton. Alternatively, if you modify or redistribute - the parser skeleton itself, you may (at your option) remove this - special exception, which will cause the skeleton and the resulting - Bison output files to be licensed under the GNU General Public - License without this special exception. - - This special exception was added by the Free Software Foundation in - version 2.2 of Bison. */ + [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 #include @@ -246,30 +243,11 @@ namespace ]b4_namespace[ 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[ +# define YYDEBUG ]b4_debug_flag[ #endif /* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N]. @@ -301,16 +279,17 @@ namespace ]b4_namespace[ #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 { @@ -365,7 +344,10 @@ b4_syncline([@oline@], [@ofile@]) 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. @@ -378,13 +360,11 @@ b4_syncline([@oline@], [@ofile@]) 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 @@ -396,4 +376,7 @@ m4_ifset([b4_global_tokens_and_yystype], } -#endif /* ! defined PARSER_HEADER_H */] +]b4_percent_code_get([[provides]])[]dnl + +[#endif /* ! defined PARSER_HEADER_H */] +m4_divert_pop(0)