X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/34376418e2406162a0a0be177cb4ce0794b42a51..9bcffa0c13d1abee13433f14cdb785cbb960425c:/data/glr.cc diff --git a/data/glr.cc b/data/glr.cc index d07b5a48..0bc1f9fa 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. -# This program is free software; you can redistribute it and/or modify +# Copyright (C) 2002-2012 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 -# 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. @@ -52,11 +51,14 @@ 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]) +b4_percent_define_ifdef([[location_type]], [], + [m4_include(b4_pkgdatadir/[location.cc])]) +m4_define([b4_parser_class_name], + [b4_percent_define_get([[parser_class_name]])]) # Save the parse parameters. m4_define([b4_parse_param_orig], m4_defn([b4_parse_param])) @@ -76,10 +78,10 @@ m4_define([b4_yy_symbol_print_generate], [static void], [[FILE *], []], [[int yytype], [yytype]], - [[const b4_namespace::b4_parser_class_name::semantic_type *yyvaluep], - [yyvaluep]], - [[const b4_namespace::b4_parser_class_name::location_type *yylocationp], - [yylocationp]], + [[const b4_namespace_ref::b4_parser_class_name::semantic_type *yyvaluep], + [yyvaluep]], + [[const b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], + [yylocationp]], b4_parse_param)[ { ]b4_parse_param_use[]dnl @@ -90,27 +92,27 @@ m4_define([b4_yy_symbol_print_generate], # 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], - [[b4_namespace::b4_parser_class_name::location_type *yylocationp], [yylocationp]], + [[const b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], + [yylocationp]], b4_parse_param, [[const char* msg], [msg]])]) # Define yyerror. m4_append([b4_epilogue], -[/* Line __line__ of glr.cc. */ -b4_syncline([@oline@], [@ofile@])[ +[b4_syncline([@oline@], [@ofile@])[ /*------------------. | Report an error. | `------------------*/ ]b4_c_ansi_function_def([yyerror], [static void], - [[b4_namespace::b4_parser_class_name::location_type *yylocationp], [yylocationp]], + [[const b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], + [yylocationp]], b4_parse_param, [[const char* msg], [msg]])[ { @@ -119,13 +121,16 @@ b4_syncline([@oline@], [@ofile@])[ } -namespace ]b4_namespace[ -{ +]b4_namespace_open[ ]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[ { } @@ -146,27 +151,31 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl inline void ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype, - const semantic_type* yyvaluep, const location_type* yylocationp) + const semantic_type* yyvaluep, + const location_type* yylocationp) { - /* Pacify ``unused variable'' warnings. */ - YYUSE (yyvaluep); YYUSE (yylocationp); + YYUSE (yyvaluep); + std::ostream& yyoutput = debug_stream (); + std::ostream& yyo = yyoutput; + YYUSE (yyo); switch (yytype) { ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl [ default: - break; + break; } } void ]b4_parser_class_name[::yy_symbol_print_ (int yytype, - const semantic_type* yyvaluep, const location_type* yylocationp) + const semantic_type* yyvaluep, + const location_type* yylocationp) { *yycdebug_ << (yytype < YYNTOKENS ? "token" : "nterm") - << ' ' << yytname[yytype] << " (" - << *yylocationp << ": "; + << ' ' << yytname[yytype] << " (" + << *yylocationp << ": "; yy_symbol_value_print_ (yytype, yyvaluep, yylocationp); *yycdebug_ << ')'; } @@ -187,18 +196,18 @@ 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[ +b4_namespace_close[ ]]) @@ -206,83 +215,58 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl # Let glr.c believe that the user arguments include the parser itself. m4_ifset([b4_parse_param], [m4_pushdef([b4_parse_param], - m4_dquote([[[b4_namespace::b4_parser_class_name& yyparser], [[yyparser]]],] + m4_dquote([[[b4_namespace_ref::b4_parser_class_name& yyparser], [[yyparser]]],] m4_defn([b4_parse_param])))], [m4_pushdef([b4_parse_param], - [[[[b4_namespace::b4_parser_class_name& yyparser], [[yyparser]]]]]) + [[[[b4_namespace_ref::b4_parser_class_name& yyparser], [[yyparser]]]]]) ]) 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])[ + [2002-2006, 2009-2012])[ /* C++ GLR parser skeleton written by Akim Demaille. */ -#ifndef PARSER_HEADER_H -# define PARSER_HEADER_H +]b4_cpp_guard_open([b4_spec_defines_file])[ + +]b4_percent_code_get([[requires]])[ #include #include +]b4_percent_define_ifdef([[location_type]], [], + [[#include "location.hh"]])[ /* Using locations. */ #define YYLSP_NEEDED ]b4_locations_flag[ -namespace ]b4_namespace[ -{ - class position; - 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_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). */ #ifndef YYLLOC_DEFAULT -# define YYLLOC_DEFAULT(Current, Rhs, N) \ - do \ - if (N) \ - { \ - (Current).begin = YYRHSLOC (Rhs, 1).begin; \ - (Current).end = YYRHSLOC (Rhs, N).end; \ - } \ - else \ - { \ - (Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end; \ - } \ +# define YYLLOC_DEFAULT(Current, Rhs, N) \ + do \ + if (N) \ + { \ + (Current).begin = YYRHSLOC (Rhs, 1).begin; \ + (Current).end = YYRHSLOC (Rhs, N).end; \ + } \ + else \ + { \ + (Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end; \ + } \ while (/*CONSTCOND*/ 0) #endif -namespace ]b4_namespace[ -{ +]b4_namespace_open[ /// A Bison parser. class ]b4_parser_class_name[ { @@ -291,16 +275,18 @@ 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]])[ location_type; /// Tokens. struct token { @@ -345,45 +331,36 @@ b4_syncline([@oline@], [@ofile@]) /// \param yyvaluep Its semantic value. /// \param yylocationp Its location. virtual void yy_symbol_value_print_ (int yytype, - const semantic_type* yyvaluep, - const location_type* yylocationp); + const semantic_type* yyvaluep, + const location_type* yylocationp); /// \brief Report a symbol on the debug stream. /// \param yytype The token type. /// \param yyvaluep Its semantic value. /// \param yylocationp Its location. virtual void yy_symbol_print_ (int yytype, - const semantic_type* yyvaluep, - const location_type* yylocationp); + const semantic_type* yyvaluep, + const location_type* yylocationp); private: -#endif /* ! YYDEBUG */ - - - /// \brief Reclaim the memory associated to a symbol. - /// \param yymsg Why this token is reclaimed. - /// \param yytype The symbol type. - /// \param yyvaluep Its semantic value. - /// \param yylocationp Its location. - inline void yydestruct_ (const char* yymsg, - int yytype, - semantic_type* yyvaluep, - location_type* yylocationp); - /* Debugging. */ + int yydebug_; std::ostream* yycdebug_; +#endif + ]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 -# define YYSTYPE ]b4_namespace[::]b4_parser_class_name[::semantic_type +# define YYSTYPE ]b4_namespace_ref[::]b4_parser_class_name[::semantic_type #endif #ifndef YYLTYPE -# define YYLTYPE ]b4_namespace[::]b4_parser_class_name[::location_type +# define YYLTYPE ]b4_namespace_ref[::]b4_parser_class_name[::location_type #endif -} - -#endif /* ! defined PARSER_HEADER_H */] +]b4_namespace_close[ +]b4_percent_code_get([[provides]])[ +]b4_cpp_guard_close([b4_spec_defines_file])[ +]m4_divert_pop(0)