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#ifndef MOZC_REWRITER_TRANSLITERATION_REWRITER_H_
#define MOZC_REWRITER_TRANSLITERATION_REWRITER_H_

#include <cstdint>
#include <string>
#include <vector>

#include "base/port.h"
#include "converter/segments.h"
#include "dictionary/pos_matcher.h"
#include "rewriter/rewriter_interface.h"

namespace mozc {

class TransliterationRewriter : public RewriterInterface {
 public:
  explicit TransliterationRewriter(const dictionary::POSMatcher &pos_matcher);
  ~TransliterationRewriter() override;

  int capability(const ConversionRequest &request) const override;

  bool Rewrite(const ConversionRequest &request,
               Segments *segments) const override;

  void Finish(const ConversionRequest &request, Segments *segments) override {}

 private:
  void InitT13nCandidate(const std::string &key, const std::string &value,
                         uint16_t lid, uint16_t rid,
                         Segment::Candidate *cand) const;
  // Sets transliteration values into segment.  If t13ns is invalid,
  // false is returned.
  bool SetTransliterations(const std::vector<std::string> &t13ns,
                           const std::string &key, Segment *segment) const;
  bool FillT13nsFromComposer(const ConversionRequest &request,
                             Segments *segments) const;
  bool FillT13nsFromKey(Segments *segments) const;
  bool AddRawNumberT13nCandidates(const ConversionRequest &request,
                                  Segments *segments) const;

  const uint16_t unknown_id_;

  DISALLOW_COPY_AND_ASSIGN(TransliterationRewriter);
};

}  // namespace mozc

#endif  // MOZC_REWRITER_TRANSLITERATION_REWRITER_H_
