Regex Registration Deny

Small module that allows you to use regex to validate fields on the registration form.

While there are alternative modules to validate fields on the registration form, I found that none of them allowed for regex checks on the name and email fields on registration. They also seemed to be overly complicated or only allowed for checking on the username or email address.
This module is quite simple and allows you to check any textfield on the registration form.

Alternatives:
user restrictions
custom username validation
field validation