Fredrik,

If you're still listening, I am gonna try and tackle this one but I 
would like to know why you or the famous Jeffrey of the Regexp world 
claims that there is already code in the Regexp Engine for Atomic 
Grouping?  Adding a hook for (?>...) should be trivial but I don't wanna 
re-invent the wheel if the proper stack-unwind code already exists.  
Thanks.  Of course, Andrew (a.k.a. A.M. Kuchling) already asked this 
question and you did not answer it, so I guess you're not reading this, 
but if you are, please respond.  Thanks!