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Yajbir Singh f1b860b25c
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updated
2025-12-11 19:03:17 +05:30

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C++

/*
* (c) Copyright Ascensio System SIA 2010-2023
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
* street, Riga, Latvia, EU, LV-1050.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
#ifndef BINARY_COMMON_READER
#define BINARY_COMMON_READER
#include "../../../Binary/Presentation/BinaryFileReaderWriter.h"
#include "../../Sheets/Common/BinReaderWriterDefines.h"
namespace BinXlsxRW {
#define READ_TABLE_DEF(res, fReadFunction, arg) {\
res = m_oBufferedStream.Peek(4) == false ? c_oSerConstants::ErrorStream : c_oSerConstants::ReadOk;\
if (c_oSerConstants::ReadOk == res) {\
long readtabledefLen = m_oBufferedStream.GetLong();\
res = m_oBufferedStream.Peek(readtabledefLen) == false ? c_oSerConstants::ErrorStream : c_oSerConstants::ReadOk;\
if (c_oSerConstants::ReadOk == res) {\
READ1_DEF(readtabledefLen, res, fReadFunction, arg);\
}\
}\
}
#define READ1_DEF(stLen, res, fReadFunction, arg) {\
long read1defCurPos = 0;\
long read1defstart_pos = m_oBufferedStream.GetPos();\
while(read1defCurPos < (long)stLen)\
{\
BYTE read1defType = 0;\
if (false == m_oBufferedStream.GetUCharWithResult(&read1defType))\
break;\
ULONG read1defLength = m_oBufferedStream.GetULong();\
if (read1defLength + read1defCurPos > (ULONG)stLen)\
{\
m_oBufferedStream.Seek(read1defstart_pos + stLen);\
res = c_oSerConstants::ReadOk;\
break;\
}\
res = fReadFunction(read1defType, read1defLength, arg);\
if(res == c_oSerConstants::ReadUnknown)\
{\
m_oBufferedStream.GetPointer(read1defLength);\
res = c_oSerConstants::ReadOk;\
}\
else if(res != c_oSerConstants::ReadOk)\
break;\
read1defCurPos += read1defLength + 5;\
}\
}
#define READ2_DEF_SPREADSHEET(stLen, res, fReadFunction, arg) {\
long read2defCurPos = 0;\
while(read2defCurPos < stLen)\
{\
BYTE read2defType = 0;\
if (false == m_oBufferedStream.GetUCharWithResult(&read2defType))\
break;\
long read2defLenType = m_oBufferedStream.GetUChar();\
int read2defCurPosShift = 2;\
int read2defRealLen;\
switch(read2defLenType)\
{\
case c_oSerPropLenType::Null: read2defRealLen = 0;break;\
case c_oSerPropLenType::Byte: read2defRealLen = 1;break;\
case c_oSerPropLenType::Short: read2defRealLen = 2;break;\
case c_oSerPropLenType::Three: read2defRealLen = 3;break;\
case c_oSerPropLenType::Long: read2defRealLen = 4;break;\
case c_oSerPropLenType::Double: read2defRealLen = 8;break;\
case c_oSerPropLenType::Variable:\
read2defRealLen = m_oBufferedStream.GetLong();\
read2defCurPosShift += 4;\
break;\
default:res = c_oSerConstants::ErrorUnknown;break;\
}\
if(res == c_oSerConstants::ReadOk)\
res = fReadFunction(read2defType, read2defRealLen, arg);\
if(res == c_oSerConstants::ReadUnknown)\
{\
m_oBufferedStream.GetPointer(read2defRealLen);\
res = c_oSerConstants::ReadOk;\
}\
else if(res != c_oSerConstants::ReadOk)\
break;\
read2defCurPos += read2defRealLen + read2defCurPosShift;\
}\
}
class Binary_CommonReader
{
protected:
NSBinPptxRW::CBinaryFileReader& m_oBufferedStream;
public:
Binary_CommonReader(NSBinPptxRW::CBinaryFileReader& poBufferedStream) : m_oBufferedStream(poBufferedStream)
{
}
};
}
#endif // #ifndef BINARY_COMMON_READER