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

@@ -1,16 +1,24 @@
 require 'kmff_palindrome/version'
 
-class String
-
+module KmffPalindrome
   # 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.scan(/[a-z]/i).join.downcase
+    self.to_s.scan(/[a-z\d]/i).join.downcase
   end
+end
+
+
+class String
+ include KmffPalindrome
+end
+
+class Integer
+  include KmffPalindrome
 end