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104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef GOB_DBASE_H
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#define GOB_DBASE_H
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#include "common/system.h"
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#include "common/util.h"
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#include "common/str.h"
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#include "common/stream.h"
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#include "common/array.h"
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namespace Gob {
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/**
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* A class for reading dBase files.
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*
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* Only dBase III files supported for now, and only field type
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* string is actually useful. Further missing is reading of MDX
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* index files and support for the external "Memo" data file.
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*/
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class dBase {
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public:
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enum Type {
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kTypeString = 0x43, // 'C'
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kTypeDate = 0x44, // 'D'
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kTypeBool = 0x4C, // 'L'
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kTypeMemo = 0x4D, // 'M'
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kTypeNumber = 0x4E // 'N'
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};
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/** A field description. */
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struct Field {
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Common::String name; ///< Name of the field.
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Type type; ///< Type of the field.
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uint8 size; ///< Size of raw field data in bytes.
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uint8 decimals; ///< Number of decimals the field holds.
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};
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/** A record. */
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struct Record {
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bool deleted; ///< Has this record been deleted?
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Common::Array<const byte *> fields; ///< Raw field data.
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};
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dBase();
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~dBase();
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bool load(Common::SeekableReadStream &stream);
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void clear();
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byte getVersion() const;
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/** Return the date the database was last updated. */
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TimeDate getLastUpdate() const;
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const Common::Array<Field> &getFields() const;
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const Common::Array<Record> &getRecords() const;
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/** Extract a string out of raw field data. */
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Common::String getString(const Record &record, int field) const;
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private:
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byte _version;
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bool _hasMemo;
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TimeDate _lastUpdate;
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Common::Array<Field> _fields;
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Common::Array<Record> _records;
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byte *_recordData;
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static inline uint32 stringLength(const byte *data, uint32 max);
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static inline Common::String readString(Common::SeekableReadStream &stream, int n);
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};
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} // End of namespace Gob
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#endif // GOB_DBASE_H
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