boof

// to save bytes...
var T = true;

/* TLDs as of Jan 2013
 * For faster lookup we store TLDs as properties of an object.
 *
 * Source: http://data.iana.org/TLD/tlds-alpha-by-domain.txt
*/ 
var topLevelDomains = {
    'ac':T,'ad':T,'ae':T,'aero':T,'af':T,'ag':T,'ai':T,'al':T,'am':T,'an':T,'ao':T,'aq':T,'ar':T,'arpa':T,'as':T,'asia':T,'at':T,'au':T,'aw':T,'ax':T,'az':T,

boof

require 'rubygems'
require 'not_naughty'

# Load the validations you want to use.
NotNaughty::Validation.load 'length', 'presence'

Person = Struct.new(:name) do
  extend NotNaughty
  validates(:name) { presence and length :minimum => 4 }
end