In Regards to your letter <199606121022.MAA24997@yggdrasil.ethz.ch>: > "If you want to know that, something's wrong with your design" :-) Except in those rare situtations where one is evolving perl code using GPA techniques and needs to determine the resulting "evolved" code tree :) tim. time@ice.com <http://www.ice.com/> USENET - a slow moving self parody... ph