Re: reading text file with MFC solution

From:

"Dan" <dn@dn-dn.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 22 Jul 2008 15:12:19 +0300

Message-ID:

<ObMI1Q$6IHA.3480@TK2MSFTNGP03.phx.gbl>

No error checking and probably with some "off by 1" errors but this is what
I came up with. Any comments are welcome. Thank you!

CStdioFile stdFile;
CFileException CFileEx;

if(!stdFile.Open(_T("C:\\products.txt"), CFile::modeNoTruncate |
CFile::modeRead| CFile::modeCreate, &CFileEx))
{
  CString strLine;
  CString strBarCode;
  CString strName;
  CString strQty;
  CString strPrice;

  while (stdFile.ReadString(strLine))
  {
   if (strLine.GetLength() == 0)
    continue;

   strLine.Trim();

   int iPos = strLine.Find(_T(' '), 0);

   int i = 0;

   if (iPos != -1)
   {
    for (i = 0; i < iPos; ++i)
     strBarCode += strLine.GetAt(i);
   }

   int iEndOfBarcode = i;

   int iWhiteSpace = strLine.ReverseFind(_T(' '));

   int iLineLength = strLine.GetLength();

   for (i = iWhiteSpace+1; i < iLineLength; ++i)
    strPrice += strLine.GetAt(i);

   while (strLine.GetAt(iWhiteSpace) == _T(' '))
    --iWhiteSpace; // get to end qty

   int iEndQty = iWhiteSpace;

   while (strLine.GetAt(iWhiteSpace) != _T(' '))
    --iWhiteSpace; // get to begin qty

   int iBeginQty = iWhiteSpace;

   for (i = iBeginQty; i < iEndQty; ++i)
    strQty += strLine.GetAt(i);

   while (strLine.GetAt(iBeginQty) == _T(' '))
    --iBeginQty; // get to the end of product name

   while (strLine.GetAt(iEndOfBarcode) == _T(' '))
    ++iEndOfBarcode; // get to beginning of product name

   for (int i = iEndOfBarcode; i < iBeginQty; ++i)
    strName += strLine.GetAt(i);

  }
}

stdFile.Close();

Dan