00001 // This file is a part of Aurelia. 00002 // Copyright (C) 2010 Valentin David 00003 // Copyright (C) 2010 University of Bergen 00004 // 00005 // This program is free software: you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation, either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program. If not, see <http://www.gnu.org/licenses/>. 00017 #ifndef __TOPDOWN_HH 00018 # define __TOPDOWN_HH 00019 00020 # include "../strategies.hh" 00021 00022 namespace aurelia { 00023 00026 template <typename S> 00027 struct topdown_strategy { 00028 private: S s; 00029 public: topdown_strategy(const S& s): s(s) {} 00030 template <typename T> 00031 T operator()(const T& term) const { 00032 return (s < all(*this))(term); 00033 } 00034 }; 00035 00039 template <typename S> 00040 topdown_strategy<S> topdown(const S& s) { 00041 return topdown_strategy<S>(s); 00042 } 00043 00044 } 00045 00046 #endif