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// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 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 <set>
#include <string>
#include "Factor.h"
class LanguageModel;
typedef std::set<Factor> FactorSet;
typedef std::set<std::string> StringSet;
/** collects factors
*
* All Factors in moses are accessed and created by a FactorCollection.
* By enforcing this strict creation processes (ie, forbidding factors
* from being created on the stack, etc), their memory addresses can
* be used as keys to uniquely identify them.
*/
class FactorCollection
{
friend std::ostream& operator<<(std::ostream&, const FactorCollection&);
protected:
FactorSet m_collection;
StringSet m_factorStringCollection;
public:
~FactorCollection();
bool Exists(FactorDirection direction, FactorType factorType, const std::string &factorString);
const Factor *AddFactor(FactorDirection direction, FactorType factorType, const std::string &factorString);
const Factor *AddFactor(FactorDirection direction, FactorType factorType, const std::string &factorString, LmId lmId);
void SetFactorLmId(const Factor *factor, LmId lmId);
void LoadVocab(FactorDirection direction, FactorType factorType, const std::string &fileName);
TO_STRING;
};
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