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135 lines
3.4 KiB
C++
135 lines
3.4 KiB
C++
// $Id$
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/***********************************************************************
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Moses - factored phrase-based language decoder
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Copyright (C) 2006 University of Edinburgh
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#ifndef moses_TargetPhraseCollection_h
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#define moses_TargetPhraseCollection_h
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#include <vector>
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#include <iostream>
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#include "TargetPhrase.h"
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#include "Util.h"
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namespace Moses
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{
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//! a list of target phrases that is translated from the same source phrase
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class TargetPhraseCollection
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{
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protected:
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friend std::ostream& operator<<(std::ostream &, const TargetPhraseCollection &);
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typedef std::vector<const TargetPhrase*> CollType;
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CollType m_collection;
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public:
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// iters
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typedef CollType::iterator iterator;
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typedef CollType::const_iterator const_iterator;
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TargetPhrase const*
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operator[](size_t const i) const
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{
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return m_collection.at(i);
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}
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iterator begin() {
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return m_collection.begin();
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}
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iterator end() {
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return m_collection.end();
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}
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const_iterator begin() const {
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return m_collection.begin();
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}
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const_iterator end() const {
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return m_collection.end();
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}
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TargetPhraseCollection()
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{}
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TargetPhraseCollection(const TargetPhraseCollection ©);
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virtual ~TargetPhraseCollection() {
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Remove();
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}
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const CollType &GetCollection() const {
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return m_collection;
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}
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//! divide collection into 2 buckets using std::nth_element, the top & bottom according to table limit
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void NthElement(size_t tableLimit);
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//! number of target phrases in this collection
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size_t GetSize() const {
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return m_collection.size();
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}
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//! wether collection has any phrases
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bool IsEmpty() const {
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return m_collection.empty();
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}
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//! add a new entry into collection
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void Add(TargetPhrase *targetPhrase) {
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m_collection.push_back(targetPhrase);
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}
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void Prune(bool adhereTableLimit, size_t tableLimit);
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void Sort(bool adhereTableLimit, size_t tableLimit);
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void Remove() {
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RemoveAllInColl(m_collection);
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}
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void Detach() {
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m_collection.clear();
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}
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};
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// LEGACY
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// DO NOT USE. NOT LEGACY CODE
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class TargetPhraseCollectionWithSourcePhrase : public TargetPhraseCollection
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{
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protected:
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//friend std::ostream& operator<<(std::ostream &, const TargetPhraseCollectionWithSourcePhrase &);
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// TODO boost::ptr_vector
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std::vector<Phrase> m_sourcePhrases;
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public:
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const std::vector<Phrase> &GetSourcePhrases() const {
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return m_sourcePhrases;
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}
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void Add(TargetPhrase *targetPhrase);
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void Add(TargetPhrase *targetPhrase, const Phrase &sourcePhrase);
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};
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struct CompareTargetPhrase {
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bool operator() (const TargetPhrase *a, const TargetPhrase *b) const;
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bool operator() (const TargetPhrase &a, const TargetPhrase &b) const;
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};
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}
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#endif
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