mirror of https://gitee.com/bigwinds/arangodb
116 lines
3.9 KiB
C
116 lines
3.9 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief fulltext query functionality
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2010-2011 triagens GmbH, Cologne, Germany
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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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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012, triagens GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "fulltext-query.h"
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#include "BasicsC/common.h"
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#include "BasicsC/utf8-helper.h"
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup VocBase
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief normalise a word for a fulltext search query
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////////////////////////////////////////////////////////////////////////////////
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char* TRI_NormaliseWordFulltextIndex (const char* word, const size_t wordLength) {
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char* copy;
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char* copy2;
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size_t outLength;
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int32_t outLength2;
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// normalise string
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copy = TR_normalize_utf8_to_NFC(TRI_UNKNOWN_MEM_ZONE, word, wordLength, &outLength);
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if (copy == NULL) {
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return NULL;
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}
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// lower case string
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copy2 = TR_tolower_utf8(TRI_UNKNOWN_MEM_ZONE, copy, (int32_t) outLength, &outLength2);
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, copy);
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return copy2;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free fulltext search query options
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FreeQueryFulltextIndex (FTS_query_t* query) {
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if (query == 0) {
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return;
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}
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if (query->_localOptions != 0) {
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, query->_localOptions);
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}
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if (query->_texts != 0) {
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size_t i;
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for (i = 0; i < query->_len; ++i) {
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, query->_texts[i]);
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}
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, query->_texts);
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}
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, query);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief query the fulltext index
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////////////////////////////////////////////////////////////////////////////////
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FTS_document_ids_t* TRI_FindDocumentsFulltextIndex (FTS_index_t* fulltextIndex,
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FTS_query_t* query) {
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return FTS_FindDocuments(fulltextIndex, query);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free the results of a fulltext query
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FreeResultsFulltextIndex (FTS_document_ids_t* result) {
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assert(result);
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FTS_Free_Documents(result);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
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// End:
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