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#include <iostream>
#include <vector>
#include <boost/program_options.hpp>
#include <boost/program_options/variables_map.hpp>
#include "filelib.h"
#include "tdict.h"
#include "scorer.h"
using namespace std;
namespace po = boost::program_options;
void InitCommandLine(int argc, char** argv, po::variables_map* conf) {
po::options_description opts("Configuration options");
opts.add_options()
("reference,r",po::value<vector<string> >(), "[REQD] Reference translation(s) (tokenized text file)")
("loss_function,l",po::value<string>()->default_value("ibm_bleu"), "Scoring metric (ibm_bleu, nist_bleu, koehn_bleu, ter, combi)")
("in_file,i", po::value<string>()->default_value("-"), "Input file")
("help,h", "Help");
po::options_description dcmdline_options;
dcmdline_options.add(opts);
po::store(parse_command_line(argc, argv, dcmdline_options), *conf);
bool flag = false;
if (!conf->count("reference")) {
cerr << "Please specify one or more references using -r <REF1.TXT> -r <REF2.TXT> ...\n";
flag = true;
}
if (flag || conf->count("help")) {
cerr << dcmdline_options << endl;
exit(1);
}
}
int main(int argc, char** argv) {
po::variables_map conf;
InitCommandLine(argc, argv, &conf);
const string loss_function = conf["loss_function"].as<string>();
ScoreType type = ScoreTypeFromString(loss_function);
DocScorer ds(type, conf["reference"].as<vector<string> >(), "");
cerr << "Loaded " << ds.size() << " references for scoring with " << loss_function << endl;
ReadFile rf(conf["in_file"].as<string>());
Score* acc = NULL;
istream& in = *rf.stream();
int lc = 0;
while(in) {
string line;
getline(in, line);
if (line.empty() && !in) break;
vector<WordID> sent;
TD::ConvertSentence(line, &sent);
Score* sentscore = ds[lc]->ScoreCandidate(sent);
if (!acc) { acc = sentscore->GetZero(); }
acc->PlusEquals(*sentscore);
delete sentscore;
++lc;
}
assert(lc > 0);
if (lc > ds.size()) {
cerr << "Too many (" << lc << ") translations in input, expected " << ds.size() << endl;
return 1;
}
if (lc != ds.size())
cerr << "Fewer sentences in hyp (" << lc << ") than refs ("
<< ds.size() << "): scoring partial set!\n";
float score = acc->ComputeScore();
string details;
acc->ScoreDetails(&details);
delete acc;
cerr << details << endl;
cout << score << endl;
return 0;
}
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