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#pragma once
#include <map>
#include <memory>
#include <set>
#include <string>
#include <vector>
#include "SyntaxNodeCollection.h"
#include "SyntaxTree.h"
namespace MosesTraining {
namespace Syntax {
/** Parses string representations of parse trees in Moses' XML format and
* converts them to SyntaxTree objects.
*
* This is a thin wrapper around the ProcessAndStripXMLTags function. After
* calling Parse(), the output from the ProcessAndStripXMLTags call (the
* sentence, node collection, label set, and top label set) are available via
* accessors.
*/
class XmlTreeParser {
public:
//! Parse a single sentence and return a SyntaxTree (with words attached).
std::auto_ptr<SyntaxTree> Parse(const std::string &, bool unescape=false);
//! Get the sentence string (as returned by ProcessAndStripXMLTags).
const std::string &sentence() const { return sentence_; }
//! Get the sentence as a vector of words.
const std::vector<std::string> &words() const { return words_; }
//! Get the node collection (as returned by ProcessAndStripXMLTags).
const SyntaxNodeCollection &node_collection() const {
return node_collection_;
}
//! Get the label set (as returned by ProcessAndStripXMLTags).
const std::set<std::string> &label_set() const { return label_set_; }
//! Get the top label set (as returned by ProcessAndStripXMLTags).
const std::map<std::string, int> &top_label_set() const {
return top_label_set_;
}
private:
void AttachWords(const std::vector<std::string> &, SyntaxTree &);
std::string sentence_;
SyntaxNodeCollection node_collection_;
std::set<std::string> label_set_;
std::map<std::string, int> top_label_set_;
std::vector<std::string> words_;
};
} // namespace Syntax
} // namespace MosesTraining
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