QString - Removing non-alphanumeric chars

[maximus]

I am using this function to remove non-alphanumeric from a QString. I use this function before saving to a file on the OS, I need this since theses char are not permitted by the OS for a filename.

With this function (code under), The compiler is giving me warning that I would like to fix:
warning: C4129: '[' : unrecognized character escape sequence
warning: C4129: ']' : unrecognized character escape sequence

Or maybe there is a function like this that already exists in QString or QFile?
Thank you!

QString Util::cleanQString(QString toClean) {  
    QString toReturn = toClean;
    toReturn.remove(QRegExp(QString::fromUtf8("[-`~!@#$%^&*()_—+=|:;<>«»,.?/{}\'\"\\\[\\\]\\\\]")));
    return toReturn;
}

[Karen Morrissey]

@maximus You don't directly escape the "[" and "]", so "\\[", not "\\\[". The pattern string you want to use is "[-`~!@#$%^&*()_—+=|:;<>«»,.?/{}\'\"\\[\\]\\\\]".

[maximus]

Thanks you, that fixed the error.
QRegex are always like writting chinese to me

[SGaist]

Hi,

If I may, you should change for QRegularExpression (the regexp itself doesn't change). It has better performances.

To help you build your regex, there's the regex example that you can use that provides a good starting point to write them.

For QRegularExpression, you need to get the 5.6 sources to get the equivalent helper program.