111 lines
4.8 KiB
C++
111 lines
4.8 KiB
C++
/*
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* Copyright (C) 2013, 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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/*
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* !!!!! DO NOT EDIT THIS FILE !!!!!
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*
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* This file was generated from
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* dictionary/structure/v4/ver4_patricia_trie_node_reader.cpp
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*/
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#include "dictionary/structure/backward/v402/ver4_patricia_trie_node_reader.h"
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#include "dictionary/header/header_policy.h"
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#include "dictionary/structure/pt_common/dynamic_pt_reading_utils.h"
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#include "dictionary/structure/pt_common/patricia_trie_reading_utils.h"
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#include "dictionary/structure/backward/v402/content/probability_dict_content.h"
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#include "dictionary/structure/backward/v402/content/probability_entry.h"
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#include "dictionary/structure/backward/v402/ver4_patricia_trie_reading_utils.h"
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#include "dictionary/utils/buffer_with_extendable_buffer.h"
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#include "dictionary/utils/forgetting_curve_utils.h"
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namespace latinime {
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namespace backward {
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namespace v402 {
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const PtNodeParams Ver4PatriciaTrieNodeReader::fetchPtNodeInfoFromBufferAndProcessMovedPtNode(
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const int ptNodePos, const int siblingNodePos) const {
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if (ptNodePos < 0 || ptNodePos >= mBuffer->getTailPosition()) {
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// Reading invalid position because of bug or broken dictionary.
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AKLOGE("Fetching PtNode info from invalid dictionary position: %d, dictionary size: %d",
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ptNodePos, mBuffer->getTailPosition());
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ASSERT(false);
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return PtNodeParams();
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}
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const bool usesAdditionalBuffer = mBuffer->isInAdditionalBuffer(ptNodePos);
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const uint8_t *const dictBuf = mBuffer->getBuffer(usesAdditionalBuffer);
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int pos = ptNodePos;
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const int headPos = ptNodePos;
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if (usesAdditionalBuffer) {
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pos -= mBuffer->getOriginalBufferSize();
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}
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const PatriciaTrieReadingUtils::NodeFlags flags =
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PatriciaTrieReadingUtils::getFlagsAndAdvancePosition(dictBuf, &pos);
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const int parentPosOffset =
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DynamicPtReadingUtils::getParentPtNodePosOffsetAndAdvancePosition(
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dictBuf, &pos);
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const int parentPos =
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DynamicPtReadingUtils::getParentPtNodePos(parentPosOffset, headPos);
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int codePoints[MAX_WORD_LENGTH];
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const int codePointCount = PatriciaTrieReadingUtils::getCharsAndAdvancePosition(
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dictBuf, flags, MAX_WORD_LENGTH, mHeaderPolicy->getCodePointTable(), codePoints, &pos);
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int terminalIdFieldPos = NOT_A_DICT_POS;
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int terminalId = Ver4DictConstants::NOT_A_TERMINAL_ID;
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int probability = NOT_A_PROBABILITY;
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if (PatriciaTrieReadingUtils::isTerminal(flags)) {
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terminalIdFieldPos = pos;
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if (usesAdditionalBuffer) {
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terminalIdFieldPos += mBuffer->getOriginalBufferSize();
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}
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terminalId = Ver4PatriciaTrieReadingUtils::getTerminalIdAndAdvancePosition(dictBuf, &pos);
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const ProbabilityEntry probabilityEntry =
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mProbabilityDictContent->getProbabilityEntry(terminalId);
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if (probabilityEntry.hasHistoricalInfo()) {
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probability = ForgettingCurveUtils::decodeProbability(
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probabilityEntry.getHistoricalInfo(), mHeaderPolicy);
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} else {
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probability = probabilityEntry.getProbability();
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}
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}
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int childrenPosFieldPos = pos;
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if (usesAdditionalBuffer) {
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childrenPosFieldPos += mBuffer->getOriginalBufferSize();
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}
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int childrenPos = DynamicPtReadingUtils::readChildrenPositionAndAdvancePosition(
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dictBuf, &pos);
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if (usesAdditionalBuffer && childrenPos != NOT_A_DICT_POS) {
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childrenPos += mBuffer->getOriginalBufferSize();
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}
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if (usesAdditionalBuffer) {
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pos += mBuffer->getOriginalBufferSize();
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}
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// Sibling position is the tail position of original PtNode.
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int newSiblingNodePos = (siblingNodePos == NOT_A_DICT_POS) ? pos : siblingNodePos;
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// Read destination node if the read node is a moved node.
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if (DynamicPtReadingUtils::isMoved(flags)) {
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// The destination position is stored at the same place as the parent position.
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return fetchPtNodeInfoFromBufferAndProcessMovedPtNode(parentPos, newSiblingNodePos);
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} else {
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return PtNodeParams(headPos, flags, parentPos, codePointCount, codePoints,
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terminalIdFieldPos, terminalId, probability, childrenPosFieldPos, childrenPos,
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newSiblingNodePos);
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}
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}
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} // namespace v402
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} // namespace backward
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} // namespace latinime
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