lib/dhoard_palindrome.rb in dhoard_palindrome-0.1.0 vs lib/dhoard_palindrome.rb in dhoard_palindrome-0.2.0

@@ -1,22 +1,24 @@
 require "dhoard_palindrome/version"
 
-class String
+module DhoardPalindrome
 
   # Returns true for a palindrome, false otherwise.
   def palindrome?
     processed_content == processed_content.reverse
   end
 
-  # Returns the letters in a string
-  def letters
-  	letter_regex = /[a-zA-Z]/
-  	self.chars.select { |c| c.match(letter_regex)}.join
-  end
-
   private
 
     # Returns content for palindrome testing.
     def processed_content
-      scan(/[a-z]/i).join.downcase
+      self.to_s.scan(/[a-z]|\d/i).join.downcase
     end
 end
+
+class String
+  include DhoardPalindrome
+end
+
+class Integer
+	include DhoardPalindrome
+end
\ No newline at end of file