mirror of
https://github.com/moses-smt/mosesdecoder.git
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71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/***********************************************************************
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Moses - statistical machine translation system
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Copyright (C) 2006-2011 University of Edinburgh
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#include "Alignment.h"
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#include "phrase-extract/syntax-common/exception.h"
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#include <algorithm>
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#include <cassert>
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#include <cstdlib>
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namespace MosesTraining
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{
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void ReadAlignment(const std::string &s, Alignment &a)
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{
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const std::string digits = "0123456789";
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a.clear();
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std::string::size_type begin = 0;
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while (true) {
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std::string::size_type end = s.find("-", begin);
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if (end == std::string::npos) {
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return;
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}
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int src = std::atoi(s.substr(begin, end-begin).c_str());
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if (end+1 == s.size()) {
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throw Syntax::Exception("Target index missing");
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}
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begin = end+1;
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end = s.find_first_not_of(digits, begin+1);
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int tgt;
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if (end == std::string::npos) {
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tgt = std::atoi(s.substr(begin).c_str());
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a.push_back(std::make_pair(src, tgt));
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return;
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} else {
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tgt = std::atoi(s.substr(begin, end-begin).c_str());
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a.push_back(std::make_pair(src, tgt));
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}
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begin = end+1;
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}
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}
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void FlipAlignment(Alignment &a)
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{
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for (Alignment::iterator p = a.begin(); p != a.end(); ++p) {
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std::swap(p->first, p->second);
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}
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}
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} // namespace MosesTraining
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