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https://github.com/moses-smt/mosesdecoder.git
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78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/***********************************************************************
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Moses - statistical machine translation system
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Copyright (C) 2006-2012 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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#pragma once
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#ifndef PCFG_PCFG_TREE_H_
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#define PCFG_PCFG_TREE_H_
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#include "syntax_tree.h"
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#include "xml_tree_writer.h"
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#include <string>
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namespace Moses {
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namespace PCFG {
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template<typename DerivedType>
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class PcfgTreeBase : public SyntaxTreeBase<std::string, DerivedType> {
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public:
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typedef std::string LabelType;
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typedef SyntaxTreeBase<LabelType, DerivedType> BaseType;
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PcfgTreeBase(const LabelType &label) : BaseType(label), score_(0.0) {}
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double score() const { return score_; }
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void set_score(double s) { score_ = s; }
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private:
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double score_;
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};
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class PcfgTree : public PcfgTreeBase<PcfgTree> {
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public:
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typedef PcfgTreeBase<PcfgTree> BaseType;
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PcfgTree(const BaseType::LabelType &label) : BaseType(label) {}
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};
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// Specialise XmlOutputHandler for PcfgTree.
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template<>
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class XmlOutputHandler<PcfgTree> {
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public:
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typedef std::map<std::string, std::string> AttributeMap;
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void GetLabel(const PcfgTree &tree, std::string &label) const {
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label = tree.label();
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}
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void GetAttributes(const PcfgTree &tree, AttributeMap &attribute_map) const {
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attribute_map.clear();
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double score = tree.score();
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if (score != 0.0) {
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std::ostringstream out;
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out << tree.score();
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attribute_map["pcfg"] = out.str();
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}
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}
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};
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} // namespace PCFG
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} // namespace Moses
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#endif
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