Regexpert
Regexpert is an attempt to remove the need to worry about which regular expression to use for validating an email, a postcode, or a social security number. Its inspired by the django.contrib.localflavor libraries and Datamapper dm-more’s dm-validations module.
Example
Instead of googling “email regexp”, and then coming up with numerous arguments about the right regexp to use, just use Regexpert
validates_format_of :email, :with => Regexpert::Format::EmailAddress
BOOM!!! no work, no worries.
Copyright © 2008 [Matthew Rudy Jacobs], released under the MIT license