Interpreting escape characters entered by user, best method?

Hi,
I have the situation where I need a user to be able to set a (some) characters to either separate fields or end a line in an input interpreter. Once I have a set of RegExp matches (QStringList), I then write them out. I have added options for the user to set how they want the fields separated and then the lines ended, the code to do it looks something like;

Code:

---

QByteArray result;
if(-1 != regExpMatcher.indexIn(regExpBuffer.constData()))
{
  regExpBuffer.clear();
  QStringList captures = regExpMatcher.capturedTexts();
  int numberOfCaps = captures.size();
  if(numberOfCaps > 1)
  {
    for(int i=1; i < numberOfCaps; i++)
    {
      result.append(captures.at(i));
      if(i != (numberOfCaps-1))
        result.append(seperator.toAscii());
    }
  }
  else
    result.append(captures.at(0));
  result.append(lineEnd.toAscii());
}

---

My problem is, if a user wants to enter a TAB as the seperator '\t' or some variant of a newline '\r\n'. How do I easily parse their input? What I would LOVE is something similar to the way the RegExps are done, some one character escapes for the common ones \0x00 (or \0xxx) for others. Of course I could write a parser, but surely there is an easy 'QT way' for this?

Any ideas?

Ok, so this may not be the 'best' method but it was easy enough and does the job as far as I am concerned.
Looking at the QByteArray there is a method 'fromPercentEncoding', I used it like

Code:

---

seperator = QByteArray::fromPercentEncoding(ui->yourInput->text().toAscii(), '\\');
lineEnd = QByteArray::fromPercentEncoding(ui->yourOtherInput->text().toAscii(), '\\');

---

Then to add it to output....

Code:

---

QByteArray result;
if(-1 != regExpMatcher.indexIn(regExpBuffer.constData()))
{
  regExpBuffer.clear();
  QStringList captures = regExpMatcher.capturedTexts();
  int numberOfCaps = captures.size();
  if(numberOfCaps > 1)
  {
    captures.removeAt(0);
    result += captures.join(seperator.constData()).toAscii();
  }
  else
    result.append(captures.at(0));
  result.append(lineEnd);
}

---

I would still be interested if anyone has other ideas, but this seemed simple enough to me.