49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LATINIME_BIGRAM_DICTIONARY_H
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#define LATINIME_BIGRAM_DICTIONARY_H
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#include <map>
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#include <stdint.h>
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#include "defines.h"
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namespace latinime {
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class BigramDictionary {
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public:
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BigramDictionary(const uint8_t *const streamStart);
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int getBigrams(const int *word, int length, int *inputCodePoints, int inputSize, int *outWords,
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int *frequencies, int *outputTypes) const;
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void fillBigramAddressToFrequencyMapAndFilter(const int *prevWord, const int prevWordLength,
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std::map<int, int> *map, uint8_t *filter) const;
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bool isValidBigram(const int *word1, int length1, const int *word2, int length2) const;
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~BigramDictionary();
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(BigramDictionary);
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void addWordBigram(int *word, int length, int frequency, int *bigramFreq, int *bigramCodePoints,
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int *outputTypes) const;
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bool checkFirstCharacter(int *word, int *inputCodePoints) const;
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int getBigramListPositionForWord(const int *prevWord, const int prevWordLength,
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const bool forceLowerCaseSearch) const;
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const uint8_t *const DICT_ROOT;
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// TODO: Re-implement proximity correction for bigram correction
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static const int MAX_ALTERNATIVES = 1;
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};
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} // namespace latinime
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#endif // LATINIME_BIGRAM_DICTIONARY_H
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