I was unclear. I didn't mean you should try to parse generic Perl regular expressions with P::RD, but instead that you can give your users a simpler syntax that they may like better. Your original message implied you don't need exact compatibility with the Perl regex syntax. With P::RD you can design a syntax that matches what the users need, rather than trying to teach them Perl regular expressions. I've found the latter to be a difficult battle for most users.