// config_parser.cc // marvin - programme du robot 2006. {{{ // // Copyright (C) 2006 Nicolas Schodet // // Robot APB Team/Efrei 2006. // Web: http://assos.efrei.fr/robot/ // Email: robot AT efrei DOT fr // // 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 // (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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // }}} #include "config_parser.hh" #include "config.hh" #include "parser.hh" #include "lexer.hh" #include #include int yyparse (void *); /// Constructeur. ConfigParser::ConfigParser (ConfigData &configData) : configData_ (configData) { } /// Lance le parseur sur un fichier. void ConfigParser::parseFile (const std::string &file) { FILE *f; f = fopen (file.c_str (), "r"); if (!f) throw std::runtime_error ("can not open file \"" + file + "\""); try { // Crée un scanner, initialise son tampon d'entré, puis parse. yyscan_t scanner; YY_BUFFER_STATE buf; Extra e (configData_, *this, true); yylex_init (&scanner); yyset_extra (&e, scanner); buf = yy_create_buffer (f, YY_READ_BUF_SIZE, scanner); yy_switch_to_buffer (buf, scanner); int ret = yyparse (scanner); yy_delete_buffer (buf, scanner); yylex_destroy (scanner); if (ret) { if (e.errorValid_) throw std::runtime_error (e.error_); else throw std::runtime_error ("parse error"); } } catch (const std::runtime_error &e) { fclose (f); throw std::runtime_error ("in file \"" + file + "\": " + e.what ()); } fclose (f); } /// Lance le parseur sur une chaîne. void ConfigParser::parseString (const std::string &s) { try { // Crée un scanner, initialise son tampon d'entré, puis parse. yyscan_t scanner; YY_BUFFER_STATE buf; Extra e (configData_, *this, false); yylex_init (&scanner); yyset_extra (&e, scanner); buf = yy_scan_bytes (s.data (), s.size (), scanner); int ret = yyparse (scanner); yy_delete_buffer (buf, scanner); yylex_destroy (scanner); if (ret) { if (e.errorValid_) throw std::runtime_error (e.error_); else throw std::runtime_error ("parse error"); } } catch (const std::runtime_error &e) { throw std::runtime_error ("in config string \"" + s + "\": " + e.what ()); } } /// Constructeur pour initialiser les références. ConfigParser::Extra::Extra (ConfigData &configData_, ConfigParser &configParser_, bool useLine) : configData (configData_), configParser (configParser_), line (1), errorValid_ (false), useLine_ (useLine) { } /// Recueille l'erreur de bison. void ConfigParser::Extra::error (const std::string &e) { if (!errorValid_) { error_ = e; errorValid_ = true; if (useLine_) { std::stringstream os; os << line; error_ += ", line "; error_ += os.str (); } } } /* Shut up warning for this wrongly declared static function. */ static int yy_init_globals (yyscan_t yyscanner) { return yy_init_globals (yyscanner); }