Hi sarah,
This is untested but should work:
QRegExp regExp("(m|c)_([0-9]{6}).rcp");
if(regExp.exactMatch(fileName))
{
//Here we know that filename matches the pattern
QString letter = regExp.cap(1); //Will be "m" or "c"
QString number = regExp.cap(2); //Will contain the six digits as a
string
}
Regular expressions are a vast topic, you will find a lot of documentation
by googling it.
Etienne
2014-04-04 13:01 GMT+02:00 André Somers <[email protected]>:
> sarah jones schreef op 4-4-2014 12:47:
>
> Hi
> How would you advise that I ensure a QString object is of a given format.
> In particular I want to check that a QString conforms to the following
> m_ or c_
> followed by 6 digits (0-9)
> followed by ".rcd"
>
> so m_000001.rcd matches as does c_000003.rcd
> but not m_aa00002.rcd
> etc
>
> A regular expression sounds like the right tool for that. See
> QRegularExpression (Qt5) or QRegExp (Qt4).
>
> André
>
>
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