00001 /*********************************************************************** 00002 Moses - statistical machine translation system 00003 Copyright (C) 2006-2012 University of Edinburgh 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Lesser General Public 00007 License as published by the Free Software Foundation; either 00008 version 2.1 of the License, or (at your option) any later version. 00009 00010 This library 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 GNU 00013 Lesser General Public License for more details. 00014 00015 You should have received a copy of the GNU Lesser General Public 00016 License along with this library; if not, write to the Free Software 00017 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00018 ***********************************************************************/ 00019 00020 #pragma once 00021 00022 #include "IntermediateVarSpanNode.h" 00023 00024 #include <memory> 00025 #include <vector> 00026 00027 namespace Moses 00028 { 00029 00030 struct ApplicableRuleTrie; 00031 struct VarSpanNode; 00032 00035 class VarSpanTrieBuilder 00036 { 00037 public: 00038 std::auto_ptr<VarSpanNode> Build(ApplicableRuleTrie &); 00039 00040 private: 00041 typedef std::vector<IntermediateVarSpanNode> NodeVec; 00042 struct NodeVecState { 00043 std::size_t m_size; 00044 IntermediateVarSpanNode m_lastNode; 00045 }; 00046 void Build(ApplicableRuleTrie &, NodeVec &, VarSpanNode &); 00047 void RecordState(const NodeVec &, NodeVecState &); 00048 void RestoreState(const NodeVecState &, NodeVec &); 00049 }; 00050 00051 }