mirror of
https://github.com/moses-smt/mosesdecoder.git
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137 lines
3.0 KiB
C++
137 lines
3.0 KiB
C++
#ifndef moses_PrefixTreeMap_h
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#define moses_PrefixTreeMap_h
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#include<vector>
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#include<climits>
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#include<iostream>
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#include <map>
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#include "PrefixTree.h"
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#include "File.h"
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#include "LVoc.h"
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#include "ObjectPool.h"
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namespace Moses
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{
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typedef PrefixTreeF<LabelId,OFF_T> PTF;
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typedef FilePtr<PTF> CPT;
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typedef std::vector<CPT> Data;
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typedef LVoc<std::string> WordVoc;
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/** @todo How is this used in the pb binary phrase table?
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*/
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class GenericCandidate
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{
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public:
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typedef std::vector<IPhrase> PhraseList;
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typedef std::vector< std::vector<float> > ScoreList;
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public:
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GenericCandidate() {
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};
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GenericCandidate(const GenericCandidate& other)
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: m_PhraseList(other.m_PhraseList), m_ScoreList(other.m_ScoreList) {
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};
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GenericCandidate(const PhraseList& p, const ScoreList& s)
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: m_PhraseList(p), m_ScoreList(s) {
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};
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~GenericCandidate() {
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};
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public:
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size_t NumPhrases() const {
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return m_PhraseList.size();
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};
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size_t NumScores() const {
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return m_ScoreList.size();
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};
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const IPhrase& GetPhrase(unsigned int i) const {
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return m_PhraseList.at(i);
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}
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const std::vector<float>& GetScore(unsigned int i) const {
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return m_ScoreList.at(i);
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}
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void readBin(FILE* f);
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void writeBin(FILE* f) const;
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private:
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PhraseList m_PhraseList;
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ScoreList m_ScoreList;
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};
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/** @todo How is this used in the pb binary phrase table?
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*/
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struct PPimp {
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PTF const*p;
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unsigned idx;
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bool root;
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PPimp(PTF const* x,unsigned i,bool b) : p(x),idx(i),root(b) {}
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bool isValid() const {
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return root || (p && idx<p->size());
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}
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bool isRoot() const {
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return root;
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}
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PTF const* ptr() const {
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return p;
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}
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};
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/** @todo How is this used in the pb binary phrase table?
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*/
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class Candidates : public std::vector<GenericCandidate>
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{
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typedef std::vector<GenericCandidate> MyBase;
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public:
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Candidates() : MyBase() {
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};
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void writeBin(FILE* f) const;
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void readBin(FILE* f);
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};
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class PrefixTreeMap
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{
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public:
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PrefixTreeMap() : m_FileSrc(0), m_FileTgt(0) {
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PTF::setDefault(InvalidOffT);
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}
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~PrefixTreeMap();
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public:
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static const LabelId MagicWord;
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void FreeMemory();
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int Read(const std::string& fileNameStem, int numVocs = -1);
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void GetCandidates(const IPhrase& key, Candidates* cands);
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void GetCandidates(const PPimp& p, Candidates* cands);
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std::vector< std::string const * > ConvertPhrase(const IPhrase& p, unsigned int voc) const;
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IPhrase ConvertPhrase(const std::vector< std::string >& p, unsigned int voc) const;
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LabelId ConvertWord(const std::string& w, unsigned int voc) const;
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std::string ConvertWord(LabelId w, unsigned int voc) const;
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public: //low level
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PPimp* GetRoot();
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PPimp* Extend(PPimp* p, LabelId wi);
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PPimp* Extend(PPimp* p, const std::string w, size_t voc) {
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return Extend(p, ConvertWord(w,voc));
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}
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private:
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Data m_Data;
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FILE* m_FileSrc;
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FILE* m_FileTgt;
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std::vector<WordVoc*> m_Voc;
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ObjectPool<PPimp> m_PtrPool;
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std::map<std::string,WordVoc> m_vocs;
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};
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}
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#endif
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