mirror of https://gitee.com/bigwinds/arangodb
102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief Ahuacatl, parser
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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 2014 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 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 ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2012-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "Ahuacatl/ahuacatl-parser.h"
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#include "Ahuacatl/ahuacatl-parser-functions.h"
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors / destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create the parser
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////////////////////////////////////////////////////////////////////////////////
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TRI_aql_parser_t* TRI_CreateParserAql (const char* const query,
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const size_t queryLength) {
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TRI_aql_parser_t* parser;
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int res;
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TRI_ASSERT(query);
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parser = (TRI_aql_parser_t*) TRI_Allocate(TRI_UNKNOWN_MEM_ZONE, sizeof(TRI_aql_parser_t), false);
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if (parser == NULL) {
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return NULL;
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}
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res = TRI_InitVectorPointer2(&parser->_scopes, TRI_UNKNOWN_MEM_ZONE, 4);
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if (res != TRI_ERROR_NO_ERROR) {
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, parser);
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return NULL;
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}
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res = TRI_InitVectorPointer2(&parser->_stack, TRI_UNKNOWN_MEM_ZONE, 4);
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if (res != TRI_ERROR_NO_ERROR) {
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TRI_DestroyVectorPointer(&parser->_scopes);
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, parser);
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return NULL;
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}
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parser->_buffer = (char*) query;
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parser->_queryLength = queryLength;
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parser->_length = (size_t) queryLength;
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parser->_offset = 0;
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return parser;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief free a parse context
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////////////////////////////////////////////////////////////////////////////////
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void TRI_FreeParserAql (TRI_aql_parser_t* const parser) {
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if (parser != NULL) {
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TRI_DestroyVectorPointer(&parser->_scopes);
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TRI_DestroyVectorPointer(&parser->_stack);
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// free lexer
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Ahuacatllex_destroy(parser->_scanner);
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TRI_Free(TRI_UNKNOWN_MEM_ZONE, parser);
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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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}\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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