This Perlcast interview segment, recorded on October 12th 2005, is with Christopher M. Frenz. Chris recently authored "Pro Perl Parsing: Master parsing concepts and techniques using the Perl language.", a book published by Apress.
As a bonus, Apress will be giving away three copies of "Pro Perl Parsing". To enter the contest, simply listen to this interview and send an email to perlcast [at] gmail.com with the answer to the question: "Which is typically faster, a top-down or bottom-up parser?" Have your submissions in by October 20th 2005.