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/***********************************************************************
Moses - statistical machine translation system
Copyright (C) 2006-2012 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#pragma once
#include "IntermediateVarSpanNode.h"
#include <memory>
#include <vector>
namespace Moses
{
struct ApplicableRuleTrie;
struct VarSpanNode;
/** @todo what is this?
*/
class VarSpanTrieBuilder
{
public:
std::auto_ptr<VarSpanNode> Build(ApplicableRuleTrie &);
private:
typedef std::vector<IntermediateVarSpanNode> NodeVec;
struct NodeVecState {
std::size_t m_size;
IntermediateVarSpanNode m_lastNode;
};
void Build(ApplicableRuleTrie &, NodeVec &, VarSpanNode &);
void RecordState(const NodeVec &, NodeVecState &);
void RestoreState(const NodeVecState &, NodeVec &);
};
}
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