91 lines
4.3 KiB
C++
91 lines
4.3 KiB
C++
/*
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* Copyright (C) 2012 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_SUGGEST_IMPL_H
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#define LATINIME_SUGGEST_IMPL_H
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#include "defines.h"
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#include "suggest/core/suggest_interface.h"
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#include "suggest/core/policy/suggest_policy.h"
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namespace latinime {
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// Naming convention
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// - Distance: "Weighted" edit distance -- used both for spatial and language.
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// - Compound Distance: Spatial Distance + Language Distance -- used for pruning and scoring
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// - Cost: delta/diff for Distance -- used both for spatial and language
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// - Length: "Non-weighted" -- used only for spatial
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// - Probability: "Non-weighted" -- used only for language
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// - Score: Final calibrated score based on the compound distance, which is sent to java as the
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// priority of a suggested word
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class DicNode;
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class DicTraverseSession;
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class ProximityInfo;
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class Scoring;
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class Traversal;
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class Weighting;
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class Suggest : public SuggestInterface {
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public:
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AK_FORCE_INLINE Suggest(const SuggestPolicy *const suggestPolicy)
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: TRAVERSAL(suggestPolicy ? suggestPolicy->getTraversal() : 0),
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SCORING(suggestPolicy ? suggestPolicy->getScoring() : 0),
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WEIGHTING(suggestPolicy ? suggestPolicy->getWeighting() : 0) {}
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AK_FORCE_INLINE virtual ~Suggest() {}
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int getSuggestions(ProximityInfo *pInfo, void *traverseSession, int *inputXs, int *inputYs,
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int *times, int *pointerIds, int *inputCodePoints, int inputSize, int commitPoint,
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int *outWords, int *frequencies, int *outputIndices, int *outputTypes) const;
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(Suggest);
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void createNextWordDicNode(DicTraverseSession *traverseSession, DicNode *dicNode,
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const bool spaceSubstitution) const;
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int outputSuggestions(DicTraverseSession *traverseSession, int *frequencies,
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int *outputCodePoints, int *outputIndices, int *outputTypes) const;
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void initializeSearch(DicTraverseSession *traverseSession, int commitPoint) const;
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void expandCurrentDicNodes(DicTraverseSession *traverseSession) const;
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void processTerminalDicNode(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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void processExpandedDicNode(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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void weightChildNode(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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float getAutocorrectScore(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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void generateFeatures(
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DicTraverseSession *traverseSession, DicNode *dicNode, float *features) const;
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void processDicNodeAsOmission(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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void processDicNodeAsDigraph(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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void processDicNodeAsTransposition(DicTraverseSession *traverseSession,
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DicNode *dicNode) const;
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void processDicNodeAsInsertion(DicTraverseSession *traverseSession, DicNode *dicNode) const;
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void processDicNodeAsAdditionalProximityChar(DicTraverseSession *traverseSession,
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DicNode *dicNode, DicNode *childDicNode) const;
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void processDicNodeAsSubstitution(DicTraverseSession *traverseSession, DicNode *dicNode,
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DicNode *childDicNode) const;
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void processDicNodeAsMatch(DicTraverseSession *traverseSession,
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DicNode *childDicNode) const;
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// Inputs longer than this will autocorrect if the suggestion is multi-word
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static const int MIN_LEN_FOR_MULTI_WORD_AUTOCORRECT;
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static const int MIN_CONTINUOUS_SUGGESTION_INPUT_SIZE;
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// Threshold for autocorrection classifier
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static const float AUTOCORRECT_CLASSIFICATION_THRESHOLD;
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const Traversal *const TRAVERSAL;
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const Scoring *const SCORING;
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const Weighting *const WEIGHTING;
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};
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} // namespace latinime
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#endif // LATINIME_SUGGEST_IMPL_H
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