mosesdecoder/OnDiskPt/Main.cpp

276 lines
7.8 KiB
C++

// $Id$
/***********************************************************************
Moses - factored phrase-based, hierarchical and syntactic language decoder
Copyright (C) 2009 Hieu Hoang
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
***********************************************************************/
#include <algorithm>
#include <iostream>
#include <string>
#include <vector>
#include <iterator>
#include <cassert>
#include "moses/InputFileStream.h"
#include "moses/Util.h"
#include "moses/UserMessage.h"
#include "OnDiskWrapper.h"
#include "SourcePhrase.h"
#include "TargetPhrase.h"
#include "TargetPhraseCollection.h"
#include "Word.h"
#include "Vocab.h"
#include "Main.h"
using namespace std;
using namespace OnDiskPt;
int main (int argc, char * const argv[])
{
// insert code here...
Moses::ResetUserTime();
Moses::PrintUserTime("Starting");
if (argc != 8) {
std::cerr << "Usage: " << argv[0] << " numSourceFactors numTargetFactors numScores tableLimit sortScoreIndex inputPath outputPath" << std::endl;
return 1;
}
int numSourceFactors = Moses::Scan<int>(argv[1])
, numTargetFactors = Moses::Scan<int>(argv[2])
, numScores = Moses::Scan<int>(argv[3])
, tableLimit = Moses::Scan<int>(argv[4]);
TargetPhraseCollection::s_sortScoreInd = Moses::Scan<int>(argv[5]);
assert(TargetPhraseCollection::s_sortScoreInd < numScores);
const string filePath = argv[6]
,destPath = argv[7];
Moses::InputFileStream inStream(filePath);
OnDiskWrapper onDiskWrapper;
onDiskWrapper.BeginSave(destPath, numSourceFactors, numTargetFactors, numScores);
PhraseNode &rootNode = onDiskWrapper.GetRootSourceNode();
size_t lineNum = 0;
char line[100000];
//while(getline(inStream, line))
while(inStream.getline(line, 100000)) {
lineNum++;
if (lineNum%1000 == 0) cerr << "." << flush;
if (lineNum%10000 == 0) cerr << ":" << flush;
if (lineNum%100000 == 0) cerr << lineNum << flush;
//cerr << lineNum << " " << line << endl;
std::vector<float> misc(1);
SourcePhrase sourcePhrase;
TargetPhrase *targetPhrase = new TargetPhrase(numScores);
OnDiskPt::PhrasePtr spShort = Tokenize(sourcePhrase, *targetPhrase, line, onDiskWrapper, numScores, misc);
assert(misc.size() == onDiskWrapper.GetNumCounts());
rootNode.AddTargetPhrase(sourcePhrase, targetPhrase, onDiskWrapper, tableLimit, misc, spShort);
}
rootNode.Save(onDiskWrapper, 0, tableLimit);
onDiskWrapper.EndSave();
Moses::PrintUserTime("Finished");
//pause();
return 0;
} // main()
bool Flush(const OnDiskPt::SourcePhrase *prevSourcePhrase, const OnDiskPt::SourcePhrase *currSourcePhrase)
{
if (prevSourcePhrase == NULL)
return false;
assert(currSourcePhrase);
bool ret = (*currSourcePhrase > *prevSourcePhrase);
//cerr << *prevSourcePhrase << endl << *currSourcePhrase << " " << ret << endl << endl;
return ret;
}
OnDiskPt::PhrasePtr Tokenize(SourcePhrase &sourcePhrase, TargetPhrase &targetPhrase, char *line, OnDiskWrapper &onDiskWrapper, int numScores, vector<float> &misc)
{
size_t scoreInd = 0;
// MAIN LOOP
size_t stage = 0;
/* 0 = source phrase
1 = target phrase
2 = scores
3 = align
4 = count
*/
char *tok = strtok (line," ");
OnDiskPt::PhrasePtr out(new Phrase());
while (tok != NULL) {
if (0 == strcmp(tok, "|||")) {
++stage;
} else {
switch (stage) {
case 0: {
WordPtr w = Tokenize(sourcePhrase, tok, true, true, onDiskWrapper, 1);
if (w != NULL)
out->AddWord(w);
break;
}
case 1: {
Tokenize(targetPhrase, tok, false, true, onDiskWrapper, 0);
break;
}
case 2: {
float score = Moses::Scan<float>(tok);
targetPhrase.SetScore(score, scoreInd);
++scoreInd;
break;
}
case 3: {
//targetPhrase.Create1AlignFromString(tok);
targetPhrase.CreateAlignFromString(tok);
break;
}
case 4:
++stage;
break;
/* case 5: {
// count info. Only store the 2nd one
float val = Moses::Scan<float>(tok);
misc[0] = val;
++stage;
break;
}*/
case 5: {
// count info. Only store the 2nd one
//float val = Moses::Scan<float>(tok);
//misc[0] = val;
++stage;
break;
}
case 6: {
// store only the 3rd one (rule count)
float val = Moses::Scan<float>(tok);
misc[0] = val;
++stage;
break;
}
default:
cerr << "ERROR in line " << line << endl;
assert(false);
break;
}
}
tok = strtok (NULL, " ");
} // while (tok != NULL)
assert(scoreInd == numScores);
targetPhrase.SortAlign();
return out;
} // Tokenize()
OnDiskPt::WordPtr Tokenize(OnDiskPt::Phrase &phrase
, const std::string &token, bool addSourceNonTerm, bool addTargetNonTerm
, OnDiskPt::OnDiskWrapper &onDiskWrapper, int retSourceTarget)
{
// retSourceTarget: 0 = don't return anything. 1 = source, 2 = target
bool nonTerm = false;
size_t tokSize = token.size();
int comStr =token.compare(0, 1, "[");
if (comStr == 0) {
comStr = token.compare(tokSize - 1, 1, "]");
nonTerm = comStr == 0;
}
OnDiskPt::WordPtr out;
if (nonTerm) {
// non-term
size_t splitPos = token.find_first_of("[", 2);
string wordStr = token.substr(0, splitPos);
if (splitPos == string::npos) {
// lhs - only 1 word
WordPtr word(new Word());
word->CreateFromString(wordStr, onDiskWrapper.GetVocab());
phrase.AddWord(word);
} else {
// source & target non-terms
if (addSourceNonTerm) {
WordPtr word(new Word());
word->CreateFromString(wordStr, onDiskWrapper.GetVocab());
phrase.AddWord(word);
if (retSourceTarget == 1) {
out = word;
}
}
wordStr = token.substr(splitPos, tokSize - splitPos);
if (addTargetNonTerm) {
WordPtr word(new Word());
word->CreateFromString(wordStr, onDiskWrapper.GetVocab());
phrase.AddWord(word);
if (retSourceTarget == 2) {
out = word;
}
}
}
} else {
// term
WordPtr word(new Word());
word->CreateFromString(token, onDiskWrapper.GetVocab());
phrase.AddWord(word);
out = word;
}
return out;
}
void InsertTargetNonTerminals(std::vector<std::string> &sourceToks, const std::vector<std::string> &targetToks, const ::AlignType &alignments)
{
for (int ind = alignments.size() - 1; ind >= 0; --ind) {
const ::AlignPair &alignPair = alignments[ind];
size_t sourcePos = alignPair.first
,targetPos = alignPair.second;
const string &target = targetToks[targetPos];
sourceToks.insert(sourceToks.begin() + sourcePos + 1, target);
}
}
class AlignOrderer
{
public:
bool operator()(const ::AlignPair &a, const ::AlignPair &b) const {
return a.first < b.first;
}
};
void SortAlign(::AlignType &alignments)
{
std::sort(alignments.begin(), alignments.end(), AlignOrderer());
}