Good morning! Here's my constant patch again (as attachment). I've modified it to use Carp 'croak'. Thanks to all who commented. Lukas PS: I'm sorry for the very long delay, but I've managed to add support for regular expressions and list values to my "ploki" interpreter! It took me quite some time because I have no idea how regexes are usually implemented (and I don't understand perl's reg{comp,exec}.c at all). It's still alpha, but you can get it at http://home.cs.tum.edu/~mai/ploki/ if you really want to.Thread Next