55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
/*
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* Copyright (C) 2014, 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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#include "dictionary/structure/v2/ver2_pt_node_array_reader.h"
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#include "dictionary/structure/pt_common/patricia_trie_reading_utils.h"
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namespace latinime {
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bool Ver2PtNodeArrayReader::readPtNodeArrayInfoAndReturnIfValid(const int ptNodeArrayPos,
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int *const outPtNodeCount, int *const outFirstPtNodePos) const {
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if (ptNodeArrayPos < 0 || ptNodeArrayPos >= static_cast<int>(mBuffer.size())) {
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// Reading invalid position because of a bug or a broken dictionary.
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AKLOGE("Reading PtNode array info from invalid dictionary position: %d, dict size: %zd",
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ptNodeArrayPos, mBuffer.size());
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ASSERT(false);
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return false;
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}
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int readingPos = ptNodeArrayPos;
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const int ptNodeCountInArray = PatriciaTrieReadingUtils::getPtNodeArraySizeAndAdvancePosition(
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mBuffer.data(), &readingPos);
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*outPtNodeCount = ptNodeCountInArray;
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*outFirstPtNodePos = readingPos;
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return true;
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}
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bool Ver2PtNodeArrayReader::readForwardLinkAndReturnIfValid(const int forwordLinkPos,
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int *const outNextPtNodeArrayPos) const {
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if (forwordLinkPos < 0 || forwordLinkPos >= static_cast<int>(mBuffer.size())) {
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// Reading invalid position because of bug or broken dictionary.
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AKLOGE("Reading forward link from invalid dictionary position: %d, dict size: %zd",
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forwordLinkPos, mBuffer.size());
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ASSERT(false);
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return false;
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}
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// Ver2 dicts don't have forward links.
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*outNextPtNodeArrayPos = NOT_A_DICT_POS;
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return true;
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}
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} // namespace latinime
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