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// Copyright 2010-2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This dictionary supports system dicitonary that will belookup from
// value, rather than key.
// Token's key, cost, ids will not be looked up due to performance concern
#ifndef MOZC_DICTIONARY_SYSTEM_VALUE_DICTIONARY_H_
#define MOZC_DICTIONARY_SYSTEM_VALUE_DICTIONARY_H_
#include <string>
#include "base/port.h"
#include "base/scoped_ptr.h"
#include "base/string_piece.h"
#include "dictionary/dictionary_interface.h"
#include "storage/louds/louds_trie.h"
namespace mozc {
class POSMatcher;
namespace dictionary {
class DictionaryFile;
class SystemDictionaryCodecInterface;
class ValueDictionary : public DictionaryInterface {
public:
virtual ~ValueDictionary();
static ValueDictionary *CreateValueDictionaryFromFile(
const POSMatcher& pos_matcher, const string &filename);
static ValueDictionary *CreateValueDictionaryFromImage(
const POSMatcher& pos_matcher, const char *ptr, int len);
// Implementation of DictionaryInterface
virtual bool HasKey(StringPiece key) const;
virtual bool HasValue(StringPiece value) const;
virtual void LookupPredictive(
StringPiece key, bool use_kana_modifier_insensitive_lookup,
Callback *callback) const;
virtual void LookupPrefix(
StringPiece key, bool use_kana_modifier_insensitive_lookup,
Callback *callback) const;
virtual void LookupExact(StringPiece key, Callback *callback) const;
virtual void LookupReverse(StringPiece str, Callback *callback) const;
private:
explicit ValueDictionary(const POSMatcher& pos_matcher);
bool OpenDictionaryFile();
storage::louds::LoudsTrie value_trie_;
scoped_ptr<DictionaryFile> dictionary_file_;
const SystemDictionaryCodecInterface *codec_;
const uint16 suggestion_only_word_id_;
DISALLOW_COPY_AND_ASSIGN(ValueDictionary);
};
} // namespace dictionary
} // namespace mozc
#endif // MOZC_DICTIONARY_SYSTEM_VALUE_DICTIONARY_H_