Dict.hpp

/*
 * Open Chinese Convert
 *
 * Copyright 2010-2020 Carbo Kuo <byvoid@byvoid.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <list>
 
#include "Common.hpp"
#include "DictEntry.hpp"
 
namespace opencc {
class OPENCC_EXPORT Dict {
public:
  virtual Optional<const DictEntry*> Match(const char* word,
                                           size_t len) const = 0;

  Optional<const DictEntry*> Match(const std::string& word) const {
    return Match(word.c_str(), word.length());
  }

  virtual Optional<const DictEntry*> MatchPrefix(const char* word,
                                                 size_t len) const;

  Optional<const DictEntry*> MatchPrefix(const char* word) const {
    return MatchPrefix(word, KeyMaxLength());
  }

  Optional<const DictEntry*> MatchPrefix(const std::string& word) const {
    return MatchPrefix(word.c_str(), word.length());
  }

  virtual std::vector<const DictEntry*> MatchAllPrefixes(const char* word,
                                                         size_t len) const;

  std::vector<const DictEntry*>
  MatchAllPrefixes(const std::string& word) const {
    return MatchAllPrefixes(word.c_str(), word.length());
  }

  virtual size_t KeyMaxLength() const = 0;

  virtual LexiconPtr GetLexicon() const = 0;

  virtual const std::list<DictPtr>* GetDictGroupItems() const {
    return nullptr;
  }
};
} // namespace opencc