Yes, I know. At the time I posted this, documentation was much scarcer than it is now. In fact, I got into pmdev because I was asking tye so many questions he decided to let me find the answers myself. :-) Of course, I've yet to actually publish the tools whose contruction I needed this information for… but at least the most important chunk of the knowledge that wasn't available to me is available in use PerlMonksFacts;