recognizer.h

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//
// Copyright RIME Developers
// Distributed under the BSD License
//
// 2012-01-01 GONG Chen <chen.sst@gmail.com>
//
#ifndef RIME_RECOGNIZER_H_
#define RIME_RECOGNIZER_H_
 
#include <boost/regex.hpp>
#include <rime/common.h>
#include <rime/processor.h>
 
namespace rime {
 
class Config;
class Segmentation;
 
struct RecognizerMatch {
  string tag;
  size_t start = 0, end = 0;
 
  RecognizerMatch() = default;
  RecognizerMatch(const string& a_tag, size_t a_start, size_t an_end)
      : tag(a_tag), start(a_start), end(an_end) {}
 
  bool found() const { return start < end; }
};
 
class RecognizerPatterns : public map<string, boost::regex> {
 public:
  void LoadConfig(Config* config, const string& name_space);
  RecognizerMatch GetMatch(const string& input,
                           const Segmentation& segmentation) const;
};
 
class Recognizer : public Processor {
 public:
  Recognizer(const Ticket& ticket);
 
  virtual ProcessResult ProcessKeyEvent(const KeyEvent& key_event);
 
 protected:
  RecognizerPatterns patterns_;
  bool use_space_ = false;
};
 
}  // namespace rime
 
#endif  // RIME_RECOGNIZER_H_