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

@@ -1,24 +1,28 @@
 # frozen_string_literal: true
 
 require 'kpietrzk_palindrome/version'
-# Documentation comments
-class String
+
+module KpietrzkPalindrome
   # Returns true for a palindrome, false otherwise.
   def palindrome?
     processed_content == processed_content.reverse
   end
 
-  # Returns the letters in the string.
-  def letters
-
-  end
-
   private
 
   # Returns content for palindrome testing.
   def processed_content
-    scan(/[a-z]/i).join('').downcase
+    to_s.scan(/[a-z\d]/i).join('').downcase
   end
 
+end
 
+
+class String
+  include KpietrzkPalindrome
+
 end
+
+class Integer
+  include KpietrzkPalindrome
+end
\ No newline at end of file