231 lines
4.8 KiB
C++
231 lines
4.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////////
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//
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// File: fileio.cpp
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//
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// History: 06-Apr-01 markder Created.
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//
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// Desc: This file contains classes to encapsulate MBCS and UNICODE files.
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//
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////////////////////////////////////////////////////////////////////////////////////
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#include "StdAfx.h"
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#include "FileIO.h"
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CTextFile::CTextFile( LPCTSTR lpszFileName, UINT nOpenFlags ) :
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CFile(lpszFileName, nOpenFlags)
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{
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}
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CANSITextFile::CANSITextFile(LPCTSTR lpszFileName, UINT dwCodePage, UINT nOpenFlags) :
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CTextFile(lpszFileName, (nOpenFlags & (~CFile::typeText)) | CFile::typeBinary)
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{
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m_dwCodePage = dwCodePage;
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}
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CUTF8TextFile::CUTF8TextFile(LPCTSTR lpszFileName, UINT nOpenFlags) :
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CTextFile(lpszFileName, (nOpenFlags & (~CFile::typeText)) | CFile::typeBinary)
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{
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UCHAR EncodingMarker[3];
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EncodingMarker[0] = (UCHAR) 0xEF;
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EncodingMarker[1] = (UCHAR) 0xBB;
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EncodingMarker[2] = (UCHAR) 0xBF;
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Write(&EncodingMarker, 3);
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}
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CUTF16TextFile::CUTF16TextFile(LPCTSTR lpszFileName, UINT nOpenFlags) :
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CTextFile(lpszFileName, (nOpenFlags & (~CFile::typeText)) | CFile::typeBinary)
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{
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UCHAR EncodingMarker[2];
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EncodingMarker[0] = (UCHAR) 0xFF;
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EncodingMarker[1] = (UCHAR) 0xFE;
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Write(&EncodingMarker, 2);
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}
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void CANSITextFile::WriteString(LPCTSTR lpsz)
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{
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LPVOID lpBuf = NULL;
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LPVOID lpAllocatedBuffer = NULL;
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LONG nBufSize = 0;
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LONG nBytesToWrite = 0;
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CString csStringToWrite(lpsz);
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csStringToWrite.Replace(_T("\012"), _T("\015\012"));
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#ifdef UNICODE
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nBufSize = WideCharToMultiByte(
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m_dwCodePage,
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0,
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csStringToWrite,
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-1,
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NULL,
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0,
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NULL,
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NULL
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);
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lpAllocatedBuffer = malloc(nBufSize);
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if (lpAllocatedBuffer == NULL) {
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AfxThrowMemoryException();
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}
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lpBuf = lpAllocatedBuffer;
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nBytesToWrite = WideCharToMultiByte(
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m_dwCodePage,
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0,
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csStringToWrite,
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-1,
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(LPSTR) lpBuf,
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nBufSize,
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NULL,
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NULL
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);
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//
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// Take off NULL terminator
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//
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nBytesToWrite--;
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#else
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lpBuf = (LPVOID) (LPCSTR) csStringToWrite;
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nBytesToWrite = strlen(csStringToWrite); // we use strlen to get total bytes
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#endif
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if (nBytesToWrite == 0) {
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goto eh;
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}
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Write(lpBuf, nBytesToWrite);
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eh:
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if (lpAllocatedBuffer) {
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free(lpAllocatedBuffer);
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}
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}
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void CUTF8TextFile::WriteString(LPCTSTR lpsz)
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{
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LPVOID lpBuf = NULL;
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LPVOID lpAllocatedBuffer = NULL;
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LONG nBufSize = 0;
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LONG nBytesToWrite = 0;
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CString csStringToWrite(lpsz);
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csStringToWrite.Replace(_T("\012"), _T("\015\012"));
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#ifdef UNICODE
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nBufSize = WideCharToMultiByte(
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CP_UTF8,
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0,
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csStringToWrite,
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-1,
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NULL,
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0,
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NULL,
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NULL
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);
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lpAllocatedBuffer = malloc(nBufSize);
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if (lpAllocatedBuffer == NULL) {
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AfxThrowMemoryException();
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}
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lpBuf = lpAllocatedBuffer;
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nBytesToWrite = WideCharToMultiByte(
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CP_UTF8,
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0,
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csStringToWrite,
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-1,
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(LPSTR) lpBuf,
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nBufSize,
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NULL,
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NULL
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);
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//
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// Take off NULL terminator
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//
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nBytesToWrite--;
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#else
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lpBuf = (LPVOID) (LPCSTR) csStringToWrite;
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nBytesToWrite = strlen(csStringToWrite); // we use strlen to get total bytes
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#endif
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if (nBytesToWrite == 0) {
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goto eh;
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}
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Write(lpBuf, nBytesToWrite);
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eh:
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if (lpAllocatedBuffer) {
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free(lpAllocatedBuffer);
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}
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}
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void CUTF16TextFile::WriteString(LPCTSTR lpsz)
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{
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LPVOID lpBuf = NULL;
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LPVOID lpAllocatedBuffer = NULL;
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LONG nBufSize = 0;
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LONG nBytesToWrite = 0;
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CString csStringToWrite(lpsz);
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csStringToWrite.Replace(_T("\012"), _T("\015\012"));
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#ifdef UNICODE
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lpBuf = (LPVOID) (LPCWSTR) csStringToWrite;
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nBytesToWrite = csStringToWrite.GetLength() * sizeof(WCHAR);
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#else
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nBufSize = MultiByteToWideChar(
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CP_ACP,
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0,
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csStringToWrite,
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-1,
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NULL,
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0);
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lpAllocatedBuffer = malloc(nBufSize);
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if (lpAllocatedBuffer == NULL) {
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AfxThrowMemoryException();
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}
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lpBuf = lpAllocatedBuffer;
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nBytesToWrite = MultiByteToWideChar(
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CP_ACP,
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0,
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csStringToWrite,
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-1,
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lpBuf,
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nBufSize);
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//
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// Take off NULL terminator
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//
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nBytesToWrite -= sizeof(WCHAR);
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#endif
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if (nBytesToWrite == 0) {
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goto eh;
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}
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Write(lpBuf, nBytesToWrite);
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eh:
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if (lpAllocatedBuffer) {
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free(lpAllocatedBuffer);
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}
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}
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