163 lines
3.6 KiB
Text
163 lines
3.6 KiB
Text
/* Copyright (C) 2004, 2005, 2006, 2009 Laboratoire d'Informatique de
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** Paris 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
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** Université Pierre et Marie Curie.
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**
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** This file is part of Spot, a model checking library.
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**
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** Spot is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** Spot is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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** or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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** License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with Spot; see the file COPYING. If not, write to the Free
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** Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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** 02111-1307, USA.
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*/
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%language "C++"
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%locations
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%defines
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%name-prefix "evtgbayy"
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%debug
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%error-verbose
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%code requires
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{
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#include <string>
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#include "public.hh"
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#include "evtgba/symbol.hh"
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}
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%parse-param {spot::evtgba_parse_error_list &error_list}
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%parse-param {spot::evtgba_explicit* &result}
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%union
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{
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int token;
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std::string* str;
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spot::rsymbol_set* symset;
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}
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%code
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{
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/* evtgbaparse.hh and parsedecl.hh include each other recursively.
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We mut ensure that YYSTYPE is declared (by the above %union)
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before parsedecl.hh uses it. */
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#include "parsedecl.hh"
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/* Ugly hack so that Bison use tgbayylex, not yylex.
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(%name-prefix doesn't work for the lalr1.cc skeleton
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at the time of writing.) */
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#define yylex evtgbayylex
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}
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%token <str> STRING UNTERMINATED_STRING
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%token <str> IDENT
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%type <str> strident string
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%type <symset> acc_list
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%token ACC_DEF
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%token INIT_DEF
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%destructor { delete $$; } STRING UNTERMINATED_STRING IDENT
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strident string acc_list
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%printer { debug_stream() << *$$; } STRING UNTERMINATED_STRING IDENT
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strident string
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%%
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evtgba: lines
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/* At least one line. */
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lines: line
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| lines line
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;
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line: strident ',' strident ',' strident ',' acc_list ';'
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{
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result->add_transition(*$1, *$5, *$7, *$3);
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delete $1;
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delete $5;
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delete $3;
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delete $7;
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}
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| ACC_DEF acc_decl ';'
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| INIT_DEF init_decl ';'
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;
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string: STRING
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| UNTERMINATED_STRING
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{
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$$ = $1;
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error_list.push_back(spot::evtgba_parse_error(@1,
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"unterminated string"));
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}
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strident: string | IDENT
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acc_list:
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{
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$$ = new spot::rsymbol_set;
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}
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| acc_list strident
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{
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$$ = $1;
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$$->insert(spot::rsymbol(*$2));
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delete $2;
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}
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;
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acc_decl:
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| acc_decl strident
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{
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result->declare_acceptance_condition(*$2);
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delete $2;
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}
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;
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init_decl:
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| init_decl strident
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{
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result->set_init_state(*$2);
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delete $2;
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}
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;
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%%
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void
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evtgbayy::parser::error(const location_type& location,
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const std::string& message)
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{
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error_list.push_back(spot::evtgba_parse_error(location, message));
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}
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namespace spot
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{
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evtgba_explicit*
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evtgba_parse(const std::string& name,
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evtgba_parse_error_list& error_list,
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bool debug)
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{
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if (evtgbayyopen(name))
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{
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error_list.push_back
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(evtgba_parse_error(evtgbayy::location(),
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std::string("Cannot open file ") + name));
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return 0;
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}
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evtgba_explicit* result = new evtgba_explicit();
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evtgbayy::parser parser(error_list, result);
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parser.set_debug_level(debug);
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parser.parse();
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evtgbayyclose();
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return result;
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}
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}
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// Local Variables:
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// mode: c++
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// End:
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