65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
//
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// fsteam.h
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// Implements a file stream
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// for reading text files line by line with UNICODE
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// support (the standard C streams, only support
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// unicode as binary streams which are a pain to work
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// with)
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//
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// Copyright(C) Microsoft Corporation 2000
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// Author: Nadim Abdo (nadima)
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//
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#ifndef _fstream_h_
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#define _fstream_h_
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#define LINEBUF_SIZE 2048
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#define READ_BUF_SIZE 8192
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#define UNICODE_BOM 0xFEFF
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#define ERR_SUCCESS 1
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#define ERR_UNKNOWN -1
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#define ERR_OUT_OF_MEM -2
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#define ERR_CREATEFILE -3
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#define ERR_BUFTOOSMALL -4
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#define ERR_EOF -5
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#define ERR_NOTOPENFORREAD -6
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#define ERR_NOTOPENFORWRITE -7
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#define ERR_FILEOP -8
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class CTscFileStream
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{
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public:
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CTscFileStream();
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~CTscFileStream();
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INT OpenForRead(LPTSTR szFileName);
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INT OpenForWrite(LPTSTR szFileName, BOOL fWriteUnicode=TRUE);
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INT Write(LPWSTR szLine);
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INT ReadNextLine(LPTSTR szLine, INT lineSize);
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INT Close();
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BOOL IsOpenForWrite() {return _fOpenForWrite;}
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BOOL IsOpenForRead() {return _fOpenForRead;}
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private:
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inline void CheckFirstBufMarkedUnicode();
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inline void EatCRLF(LPWSTR szLine, INT nChars);
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private:
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HANDLE _hFile;
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PBYTE _pBuffer;
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PBYTE _pAnsiLineBuf;
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INT _cbAnsiBufSize;
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BOOL _fOpenForRead;
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BOOL _fOpenForWrite;
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BOOL _fReadToEOF;
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INT _curBytePtr;
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INT _curBufSize;
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TCHAR _szFileName[MAX_PATH+1];
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BOOL _fFileIsUnicode;
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BOOL _fAtStartOfFile;
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};
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#endif //_fstream_h_
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