require "torischuyler_palindrome/version" module TorischuylerPalindrome # Returns true for a palindrome, false otherwise. def palindrome? processed_content == processed_content.reverse end private # Returns content for palindrome testing. def processed_content self.to_s.scan(/[a-z\d]/i).join.downcase end end class String include TorischuylerPalindrome end class Integer include TorischuylerPalindrome end