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#pragma once
#include <map>
#include <vector>
#include <boost/functional/hash.hpp>
#include <boost/unordered_map.hpp>
#include <boost/version.hpp>
#include "moses/Syntax/SymbolEqualityPred.h"
#include "moses/Syntax/SymbolHasher.h"
#include "moses/TargetPhrase.h"
#include "moses/TargetPhraseCollection.h"
#include "moses/Terminal.h"
#include "moses/Util.h"
#include "moses/Word.h"
#include "RuleTrie.h"
namespace Moses
{
namespace Syntax
{
namespace S2T
{
class RuleTrieCYKPlus : public RuleTrie
{
public:
class Node
{
public:
typedef boost::unordered_map<Word, Node, SymbolHasher,
SymbolEqualityPred> SymbolMap;
bool IsLeaf() const {
return m_sourceTermMap.empty() && m_nonTermMap.empty();
}
bool HasRules() const {
return !m_targetPhraseCollection->IsEmpty();
}
void Prune(std::size_t tableLimit);
void Sort(std::size_t tableLimit);
Node *GetOrCreateChild(const Word &sourceTerm);
Node *GetOrCreateNonTerminalChild(const Word &targetNonTerm);
const Node *GetChild(const Word &sourceTerm) const;
const Node *GetNonTerminalChild(const Word &targetNonTerm) const;
TargetPhraseCollection::shared_ptr
GetTargetPhraseCollection() const {
return m_targetPhraseCollection;
}
TargetPhraseCollection::shared_ptr
GetTargetPhraseCollection() {
return m_targetPhraseCollection;
}
const SymbolMap &GetTerminalMap() const {
return m_sourceTermMap;
}
const SymbolMap &GetNonTerminalMap() const {
return m_nonTermMap;
}
Node() : m_targetPhraseCollection(new TargetPhraseCollection) {}
private:
SymbolMap m_sourceTermMap;
SymbolMap m_nonTermMap;
TargetPhraseCollection::shared_ptr m_targetPhraseCollection;
};
RuleTrieCYKPlus(const RuleTableFF *ff) : RuleTrie(ff) {}
const Node &GetRootNode() const {
return m_root;
}
bool HasPreterminalRule(const Word &) const;
private:
TargetPhraseCollection::shared_ptr
GetOrCreateTargetPhraseCollection
(const Phrase &source, const TargetPhrase &target, const Word *sourceLHS);
Node &GetOrCreateNode(const Phrase &source, const TargetPhrase &target,
const Word *sourceLHS);
void SortAndPrune(std::size_t);
Node m_root;
};
} // namespace S2T
} // namespace Syntax
} // namespace Moses
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