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+// config_data.cc
+// robert - programme du robot 2005. {{{
+//
+// Copyright (C) 2005 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2005.
+// 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/config.hh"
+#include "config/config_data.hh"
+#include "config/parser_extra.hh"
+#include "parser.hh"
+#include "lexer.hh"
+
+#include <stdexcept>
+
+/// Constructeur. Traite les arguments de la ligne de commande et lit le
+/// fichier de configuration. Les arguments traités sont retiré de la
+/// ligne de commande.
+ConfigData::ConfigData (int &argc, char **&argv)
+{
+ parse ("rc/config");
+}
+
+/// Constructeur. Fourni en plus un fichier de configuration différent de
+/// celui par défaut.
+ConfigData::ConfigData (int &argc, char **&argv, const std::string &file)
+{
+ parse (file);
+}
+
+/// Récupère une valeur de configuration.
+const any &
+ConfigData::get (const std::string &id) const
+{
+ Data::const_iterator i = data_.find (id);
+ if (i == data_.end ())
+ throw std::runtime_error (id + ": config item not found");
+ return i->second;
+}
+
+/// Ajoute une valeur de configuration. VAL prend l'ancienne valeur ou un any
+/// vide.
+void
+ConfigData::add (const std::string &id, any &val)
+{
+ any &a = data_[id];
+ a.swap (val);
+}
+
+int yyparse (void *);
+
+/// Lance le parseur.
+void
+ConfigData::parse (const std::string &file)
+{
+ FILE *f;
+ f = fopen (file.c_str (), "r");
+ if (!f)
+ throw std::runtime_error ("can not open config file \"" + file + "\"");
+ try
+ {
+ // Crée un scaner, initialise son tampon d'entré, puis parse.
+ yyscan_t scanner;
+ YY_BUFFER_STATE buf;
+ ParserExtra pe (*this);
+ yylex_init (&scanner);
+ yyset_extra (&pe, 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)
+ throw std::runtime_error ("parse error");
+ }
+ catch (const std::runtime_error &e)
+ {
+ fclose (f);
+ throw std::runtime_error ("in config file \"" + file + "\": "
+ + e.what ());
+ }
+ fclose (f);
+}
+
+/* Shut up warning for this wrongly declared static function. */
+static int
+yy_init_globals (yyscan_t yyscanner)
+{
+ return yy_init_globals (yyscanner);
+}
+