On: A regular expression to check for prime numbers

[arielpts]

Thank you very much for your great gem :)

Very usefull!

[tom-lord → arielpts]

Thanks :)

It's still "under development", while I add a few missing features, but as you can see from the README these are only for fairly obscure parts of the regex language! - E.g. POSIX groups, named properties, character set intersection, ...