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/**
* Epochal Phrase Extraction.
*
* (C) Moses: http://www.statmt.org/moses/
* (C) Ceslav Przywara, UFAL MFF UK, 2011
*
* $Id$
*/
#include <string>
#include <iostream>
#include <fstream>
#include <string.h>
#include "config.h"
#include "phrase-extract.h"
#include "shared.h"
#define REQUIRED_PARAMS_NUM 5
//// Output processor declaration.
class FlushingOutputProcessor: public OutputProcessor {
private:
const bool _compactOutputFlag;
public:
FlushingOutputProcessor(bool compactOutputFlag): _compactOutputFlag(compactOutputFlag) {}
void operator() (const std::string& srcPhrase, const std::string& tgtPhrase, const std::string& orientationInfo, const alignment_t& alignment, const size_t frequency, int mode);
};
//// Global variables.
// output files
std::ofstream extractFile; // extract
std::ofstream extractFileInv; // extract.inv
std::ofstream extractFileOrientation; // extract.o
////
bool compactOutputFlag = false; // Generate compact output:
// Each phrase pair is printed only once with its frequency prepended.
// Note that compacted output is not compatible with std phrase-extract format.
//// Functions.
void program_info(void) {
std::cerr
<< "Epochal Phrase Extraction (" << PACKAGE_STRING << ") written by Ceslav Przywara (based on PhraseExtract v1.4 by Philipp Koehn).\n"
<< "Compiled with "
#ifdef USE_UNORDERED_MAP
<< "std::tr1::unordered_map"
#else
<< "std::map"
#endif
<< " implementation.\n"
;
}
void read_optional_params(int argc, char* argv[], int optionalParamsStart);
void usage(const char* programName) {
std::cerr << std::endl << "Syntax: " << std::string(programName) << " tgt src align extract lossy-counter [lossy-counter-2 [...]] [--compact] [--sort] [orientation [ --model [wbe|phrase|hier]-[msd|mslr|mono] ]]" << std::endl;
std::cerr << get_lossy_counting_params_format();
exit(1);
}
/*******************************************************************************
* MAIN *
******************************************************************************/
int main(int argc, char* argv[]) {
// Welcome user with program info!
program_info();
if (argc <= REQUIRED_PARAMS_NUM) {
usage(argv[0]);
}
const char* fileNameE = argv[1];
const char* fileNameF = argv[2];
const char* fileNameA = argv[3];
std::string fileNameExtract = std::string(argv[4]);
// Init lossy counters.
std::string lossyCountersParams;
int paramIdx = 5;
while ( (argc > paramIdx) && (*argv[paramIdx] != '-') ) {
std::string param = std::string(argv[paramIdx]);
if ( !parse_lossy_counting_params(param) ) {
usage(argv[0]);
}
lossyCountersParams += (" " + param);
++paramIdx;
}
if ( paramIdx == REQUIRED_PARAMS_NUM ) {
std::cerr << "ERROR: no Lossy Counting parameters specified!" << std::endl;
usage(argv[0]);
}
for ( size_t i = 1; i < lossyCounters.size(); ++i ) {
if ( lossyCounters[i] == NULL ) {
std::cerr << "ERROR: max phrase length set to " << maxPhraseLength << ", but no Lossy Counting parameters specified for phrase pairs of length " << i << "!" << std::endl;
usage(argv[0]);
}
}
if ( (argc > paramIdx) && (strcmp(argv[paramIdx], "--compact") == 0) ) {
compactOutputFlag = true;
++paramIdx;
}
if ( (argc > paramIdx) && (strcmp(argv[paramIdx], "--sort") == 0) ) {
sortedOutput = true;
++paramIdx;
}
//
read_optional_params(argc, argv, paramIdx);
std::cerr << "Starting epochal phrase table extraction with params:" << lossyCountersParams << std::endl;
std::cerr << "Output will be " << (sortedOutput ? "sorted" : "unsorted") << "." << std::endl;
// open input files
std::ifstream eFile(fileNameE);
std::ifstream fFile(fileNameF);
std::ifstream aFile(fileNameA);
// open output files
if (translationFlag) {
if (sortedOutput) {
extractFile.open((fileNameExtract + ".sorted").c_str());
extractFileInv.open((fileNameExtract + ".inv.sorted").c_str());
}
else {
extractFile.open(fileNameExtract.c_str());
extractFileInv.open((fileNameExtract + ".inv").c_str());
}
}
if (orientationFlag) {
extractFileOrientation.open((fileNameExtract + ".o").c_str());
}
//
readInput(eFile, fFile, aFile);
std::cerr << std::endl; // Leave the progress bar end on previous line.
// close input files
eFile.close();
fFile.close();
aFile.close();
FlushingOutputProcessor processor(compactOutputFlag);
processOutput(processor);
// close output files
if (translationFlag) {
extractFile.close();
extractFileInv.close();
}
if (orientationFlag) {
extractFileOrientation.close();
}
printStats();
} // end of main()
void FlushingOutputProcessor::operator()(const std::string& srcPhrase, const std::string& tgtPhrase, const std::string& orientationInfo, const alignment_t& alignment, const size_t frequency, int mode) {
size_t m = frequency;
if ( _compactOutputFlag ) {
// Prepend frequency.
if (translationFlag && (mode >= 0)) extractFile << frequency << " ||| ";
if (translationFlag && (mode <= 0)) extractFileInv << frequency << " ||| ";
if (orientationFlag && (mode >= 0)) extractFileOrientation << frequency << " ||| ";
m = 1; // Loop only once!
}
for ( size_t i = 0; i < m; ++i ) {
// alignment
if (translationFlag) {
if (mode >= 0) extractFile << srcPhrase << " ||| " << tgtPhrase << " |||";
if (mode <= 0) extractFileInv << tgtPhrase << " ||| " << srcPhrase << " |||";
for ( alignment_t::const_iterator alignIter = alignment.begin(); alignIter != alignment.end(); ++alignIter ) {
// Note that unsigned char isn't treated as numeric value by stream operators,
// so casting is necessary.
if (mode >= 0) extractFile << " " << (int) alignIter->first << "-" << (int) alignIter->second;
if (mode <= 0) extractFileInv << " " << (int) alignIter->second << "-" << (int) alignIter->first;
}
if (mode >= 0) extractFile << "\n";
if (mode <= 0) extractFileInv << "\n";
}
if (orientationFlag && (mode >= 0)) {
extractFileOrientation << srcPhrase << " ||| " << tgtPhrase << " ||| " << orientationInfo << "\n";
}
}
}
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