actually an RFC colud be useful.
Stop with the marketing gag and lets explain why:
what the module offers is a kind of synthetic data generation language, i.e. it is a mean to describe a set of values in a very very condensed form.
How?

Think about a Regex pattern that instead of filtering the matching data it actually produces it,
i.e. for example the rule:

[01]{2} 
produces the array '00' , '01' ,'10' , '11'.
[download]

Regards,
Ex Novice with now 0 geek points.

PS: can one have a negative geek point total?

Regards,
Ex Novice with now 0 geek points.

PS: can one have a negative geek point total?


Yep, however for one thing they're not called "geek points", but Experience Points, or XP in brief. OTOH it won't last much, unless you put much effort in it. Anyway, what's more important: don't be an XP whore! (Hey, I knew it would have been useful! :-)