mirror of https://gitee.com/bigwinds/arangodb
157 lines
5.9 KiB
C
157 lines
5.9 KiB
C
////////////////////////////////////////////////////////////////////////////////
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/// @brief csv functions
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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 Dr. Frank Celler
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/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_BASICS_C_CSV_H
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#define ARANGODB_BASICS_C_CSV_H 1
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#include "Basics/Common.h"
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// -----------------------------------------------------------------------------
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// --SECTION-- public types
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief parser states
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////////////////////////////////////////////////////////////////////////////////
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typedef enum {
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TRI_CSV_PARSER_BOL,
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TRI_CSV_PARSER_BOL2,
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TRI_CSV_PARSER_BOF,
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TRI_CSV_PARSER_WITHIN_FIELD,
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TRI_CSV_PARSER_WITHIN_QUOTED_FIELD,
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TRI_CSV_PARSER_CORRUPTED
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}
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TRI_csv_parser_states_e;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief template for CSV parser
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////////////////////////////////////////////////////////////////////////////////
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typedef struct TRI_csv_parser_s {
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TRI_csv_parser_states_e _state;
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TRI_memory_zone_t* _memoryZone;
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char _quote;
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char _separator;
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bool _useQuote;
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bool _useBackslash;
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char* _begin; // beginning of the input buffer
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char* _start; // start of the unproccessed part
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char* _written; // pointer to currently written character
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char* _current; // pointer to currently processed character
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char* _stop; // end of unproccessed part
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char* _end; // end of the input buffer
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size_t _row;
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size_t _column;
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void* _dataBegin;
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void* _dataAdd;
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void* _dataEnd;
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void (*begin) (struct TRI_csv_parser_s*, size_t row);
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void (*add) (struct TRI_csv_parser_s*, char const*, size_t, size_t row, size_t column, bool escaped);
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void (*end) (struct TRI_csv_parser_s*, char const*, size_t, size_t row, size_t column, bool escaped);
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size_t _nResize;
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size_t _nMemmove;
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size_t _nMemcpy;
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void *_data;
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}
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TRI_csv_parser_t;
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// -----------------------------------------------------------------------------
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// --SECTION-- constructors and destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief inits a CSV parser
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////////////////////////////////////////////////////////////////////////////////
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void TRI_InitCsvParser (TRI_csv_parser_t*,
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TRI_memory_zone_t*,
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void (*) (TRI_csv_parser_t*, size_t),
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void (*) (TRI_csv_parser_t*, char const*, size_t, size_t, size_t, bool),
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void (*) (TRI_csv_parser_t*, char const*, size_t, size_t, size_t, bool),
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void *vData);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief destroys a CSV parser
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////////////////////////////////////////////////////////////////////////////////
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void TRI_DestroyCsvParser (TRI_csv_parser_t* parser);
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// -----------------------------------------------------------------------------
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// --SECTION-- public functions
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set the separator
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///
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/// note that the separator string must be valid until the parser is destroyed
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////////////////////////////////////////////////////////////////////////////////
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void TRI_SetSeparatorCsvParser (TRI_csv_parser_t* parser,
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char separator);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set the quote character
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////////////////////////////////////////////////////////////////////////////////
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void TRI_SetQuoteCsvParser (TRI_csv_parser_t* parser,
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char quote,
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bool useQuote);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief whether or not a backslash is used to escape quotes
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////////////////////////////////////////////////////////////////////////////////
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void TRI_UseBackslashCsvParser (TRI_csv_parser_t* parser,
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bool value);
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////////////////////////////////////////////////////////////////////////////////
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/// @brief parses a CSV line
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////////////////////////////////////////////////////////////////////////////////
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int TRI_ParseCsvString (TRI_csv_parser_t*, char const*, size_t);
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#endif
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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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