src/lisp/list_iterator.hpp

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00001 //  SuperTux
00002 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
00003 //
00004 //  This program is free software: you can redistribute it and/or modify
00005 //  it under the terms of the GNU General Public License as published by
00006 //  the Free Software Foundation, either version 3 of the License, or
00007 //  (at your option) any later version.
00008 //
00009 //  This program is distributed in the hope that it will be useful,
00010 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 //  GNU General Public License for more details.
00013 //
00014 //  You should have received a copy of the GNU General Public License
00015 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
00016 
00017 #ifndef HEADER_SUPERTUX_LISP_LIST_ITERATOR_HPP
00018 #define HEADER_SUPERTUX_LISP_LIST_ITERATOR_HPP
00019 
00020 #include "lisp/lisp.hpp"
00021 
00022 namespace lisp {
00023 
00028 class ListIterator
00029 {
00030 public:
00031   ListIterator(const lisp::Lisp* cur);
00032 
00033   const std::string& item() const
00034   { return current_item; }
00035   const lisp::Lisp* lisp() const
00036   { return current_lisp; }
00037   const lisp::Lisp* value() const
00038   { return current_lisp->get_car(); }
00039   bool next();
00040 
00041 private:
00042   std::string current_item;
00043   const lisp::Lisp* current_lisp;
00044   const lisp::Lisp* cur;
00045 
00046 private:
00047   ListIterator(const ListIterator&);
00048   ListIterator& operator=(const ListIterator&);
00049 };
00050 
00051 }
00052 
00053 #endif
00054 
00055 /* EOF */

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