QRegExp for everything inside [ ]

[Forgive]

instead.

[lgeyer]

You'll just have to escape <code>[</code> and <code>]</code> within your pattern, as they are used to group expressions.
@
QRegExp pattern("\[.*\]"); // double slash, as you want to escape the
// brackets within your pattern, not within
// the string passed to the ctor
@
Be aware that if there are nested brackets you'll receive a greedy match, as QRegExp::setMinimal() is false per default.