You're replying to a comment by bluestorm.

bluestorm Permalink
December 15, 2009, 07:57

These extensions make regular expressions powerful enough to describe some context-free grammars.

Discutable wording, as (purely) regular languages already are a subset of context-free languages.

Reply To This Comment

(why do I need your e-mail?)

(Your twitter handle, if you have one.)

Type the word "server_180": (just to make sure you're a human)

Please preview the comment before submitting to make sure it's OK.