Reading text file

Hallo,

I try to read a line of text in a file that looks like this: 10N11M12R
where N, M and R are numbers from 1 to 2000.
For 3-digit numbers, I extracted N, M and R in this way:

Code:

 int count = 0; 
 int ch;
  try
    {
     
        CStdioFile file(_T("temp.txt"), CFile::modeRead);
        CString str,mainstr = _T("");
 
        while(file.ReadString(str))
        {
            mainstr += str;
            mainstr += _T("\n");
        }
         
        textBox2 ->SetWindowTextA(mainstr.Mid(3,3));   // N
        textBox3 ->SetWindowTextA(mainstr.Mid(10,3)); // M
        textBox4 ->SetWindowTextA(mainstr.Mid(17,3)); // R    
      
    }
    catch(CException* e)//Catch by pointer as exceptions in MFC are crap
    {
        MessageBox(_T("Error - unable to open file"));
        e->Delete();//Lame...very lame...but needed
 
    }

How can parse this line and determine the number of digits that contains N, M and R?

Thanks,

Haris

Id try something like this

Code:

nr_N = mainstr.Find('N',0);
nr_M = mainstr.Find('M', nr_N+1) - nr_N - 1;
nr_R = mainstr.GetLength() - ( nr_N + nr_M + 2);

This is not tested and propably wrong too but I hope you get the idea.
Kurt

How get all numbers by regex?

should get you started on finding integers within a string.

Thanks, I try with your Feedback

Haris

Thanks all, is now working.

The release work fine on Windows 7 but not on XP(SP3). I have installed on XP Framework 4 and installed the application.
Wen i try to write something througth the serialport, I get write failed. I cann't debug on Xp because VC 2010 ist not installed.
The application is a MFC in a static Library and I think isn't a dll problem. What can the problem be?

Haris