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#pragma once
/*
* Rule.h
* extract
*
* Created by Hieu Hoang on 19/07/2010.
* Copyright 2010 __MyCompanyName__. All rights reserved.
*
*/
#include <vector>
#include <iostream>
#include "LatticeNode.h"
#include "SymbolSequence.h"
#include "Global.h"
class Lattice;
class SentenceAlignment;
class Global;
class RuleCollection;
class SyntaxNode;
class TunnelCollection;
class RuleElement
{
protected:
const LatticeNode *m_latticeNode;
public:
size_t symbolPos[2];
RuleElement(const RuleElement ©);
RuleElement(const LatticeNode &latticeNode, size_t sourcePos);
const LatticeNode &GetLatticeNode() const
{ return *m_latticeNode; }
};
class Rule
{
friend std::ostream& operator<<(std::ostream &out, const Rule &obj);
protected:
typedef std::vector<RuleElement> CollType;
CollType m_coll;
typedef std::vector<RuleElement*> CollTypeTarget;
CollTypeTarget m_targetSorted;
const SyntaxNode *m_lhsS, *m_lhsT;
SymbolSequence m_source, m_target;
void SortTargetLHS();
bool IsHole(const TunnelCollection &holeColl) const;
const LatticeNode &GetLatticeNode(size_t ind) const;
void CreateSymbolsInterna();
public:
// init
Rule(const LatticeNode *latticeNode);
// create new rule by appending node to prev rule
Rule(const Rule &prevRule, const LatticeNode *latticeNode);
// create copy with lhs
Rule(const Rule ©, const SyntaxNode *lhsS, const SyntaxNode *lhsT);
// can continue to add to this rule
bool CanRecurse(const Global &global, const TunnelCollection &holeColl) const;
virtual ~Rule();
// can add this to the set of rules
bool IsValid(const Global &global, const TunnelCollection &holeColl) const;
size_t GetNumSymbols() const;
bool AdjacentDefaultNonTerms() const;
bool MaxNonTerm(const Global &global) const;
void CreateRules(RuleCollection &rules
, const Lattice &lattice
, const SentenceAlignment &sentence
, const Global &global);
std::pair<size_t, size_t> GetSpan(size_t direction) const;
int Compare(const Rule &compare) const;
bool operator<(const Rule &compare) const;
std::string ToString() const;
void CreateSymbols();
DEBUG_OUTPUT();
};
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