fileoperaton.cpp

实现WINCE下对文件数据的多维格式化读取

#include "StdAfx.h"

#include "FileOperation.h"

FileOperation::FileOperation()
{
}

FileOperation::~FileOperation()
{
}


BOOL FileOperation::setFileName( CString csFN )
{
	m_csFileName = csFN;
	
	return TRUE;
}


BOOL FileOperation::readFile( CString& csFile )
{
	DWORD			dwLength = 0;
	CFileException	e;
	CString			szCause;
    CString			strFormatted;
	int nErr		= 0;
	
	try
	{
		nErr = Open( m_csFileName, CFile::modeRead, &e );
	}
	catch ( CFileException* e )
	{
		e->GetErrorMessage( (LPTSTR)&szCause, 255);

		strFormatted = _T("The data file could not be opened because of this error: ");
		strFormatted += szCause;

		AfxMessageBox(strFormatted);
	
		throw;
	}

	if( ! nErr ){
	//	CString	csErr = m_csFileName + " file can`t find or can`t open";
	//	AfxMessageBox( csErr );
		return FALSE;
	}

	dwLength = GetLength();

	char*	pData;
	pData = new char[dwLength+1];
	memset( pData, 0x00, dwLength+1 );
	Read( pData, dwLength );
	csFile = pData;
	
	delete []pData;
	Close( ); 

	return TRUE;
}

BOOL FileOperation::writeFile( CString& csFile )
{
	CFileException	e;
	CString			szCause;
    CString			strFormatted;
	int				nErr = 0;
	
	try
	{
		nErr = Open( m_csFileName, CFile::modeReadWrite | CFile::modeCreate | 
												CFile::modeNoTruncate, &e );
	}
	catch (CFileException* e)
	{
		e->GetErrorMessage( (LPTSTR)&szCause, 255);

		strFormatted = _T("The data file could not be opened because of this error: ");
		strFormatted += szCause;

		AfxMessageBox(strFormatted);
	
		throw;
	}
	
	if( ! nErr ){
		CString	csErr = m_csFileName + " file can`t find or can`t open";
		AfxMessageBox( csErr );
		return FALSE;
	}
	
	int nCsLen = csFile.GetLength();
	LPTSTR  lpBuffer = csFile.GetBuffer(0);

	char* contxt = new char[nCsLen*2];
	memset( contxt, 0x00, sizeof( char ) );
	int nlen=	WideCharToMultiByte(CP_ACP,0,lpBuffer,nCsLen,0,0,0,0);
	WideCharToMultiByte(CP_ACP, 0, lpBuffer, nCsLen, contxt, nlen, NULL, NULL);

	SeekToEnd( ); 
	Write( contxt,  nlen );
	delete []contxt;
	Close( ); 

	return TRUE;
}


BOOL FileOperation::deleteFile()
{
	CFile::Remove( m_csFileName );

	return TRUE;
}


BOOL FileOperation::getFileNameForDelete()
{	
	return TRUE;
}


BOOL FileOperation::getList( CStringList* cArrayNameList, CString& sNameString, CString& theFlg )
{
	int			position_1 = 0;
	int			position_2 = 0;
	int			position_3 = 0;
	CString		sBuffer;
	BOOL		flg;

	position_2 = sNameString.Find( theFlg, position_1 );
	if( position_2 == -1 ){
		flg = FALSE;
		return flg;
	}

	int nPOS = 0;
	for( ;  ; )
	{
		position_2 = sNameString.Find( theFlg, position_1 );
	
		if( position_2 == -1 ){
			position_3 = sNameString.GetLength();
		//	deleteSpace( position_1, position_3, sNameString );
			if( position_1 == position_3 ){
				flg = FALSE;
				return flg;
			}else{
				sBuffer = sNameString.Mid( position_1, (nPOS) );
				cArrayNameList->AddTail( sBuffer );
			}
			break;
		}else{
			position_3	= position_2;
//			deleteSpace( position_1, position_3, sNameString );
		}
	
		if( position_1 == position_3 ){
			flg = FALSE;
			return flg;
		}else{
			if ( theFlg == "\n" )
				nPOS = position_3 - position_1-1;
			else
				nPOS = position_3 - position_1;
			sBuffer = sNameString.Mid( position_1, (nPOS) );
			cArrayNameList->AddTail( sBuffer );
		}

		position_1 = position_2 + theFlg.GetLength();
	}

	flg		= TRUE;
	return flg;
}