Right. I was thinking of the (?>..) example that only matches upto two deep.
m{ \(
(
[^()]+ # x+
|
\( [^()]* \)
)+
\)
}x
Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.