http://www.perlmonks.org?node_id=108182

Parse::RecDescent Tutorial is a little something I found this morning while groking Parse::RecDescent for use in a module I'm writing. Written by Jeffrey Goff back on 13 June '01, seems easier to digest in a first sitting than the wonderful if highly prolix Parse::RecDescent pod.

Using Parse::RecDescent by Craig Smith via "Der Zweiter Perl Workshop" is another good resource I just started reading.

Even Big Blue got into the act with Parsing with Perl modules by Teodor Zlatanov.