in reply to
Regular Expression Builder
Komodo from ActiveState includes a regular expression toolkit that allows you to see what a regex does as you have it, on a sample output.
I know this is not exactly what you are looking for but it might be helpful...
Computer science is merely the post-Turing decline of formal systems theory.
The same name on every site (unless it is taken already)
A different name for every site
The same name for sites I don't care about, but different names on sites I do care about
Different names for sites I don't care about, but the same name on sites I do care about
The anonymous account
Someone else's username
Root, after hacking into the site
Results (249 votes),