gistfile1.diff

diff --git a/lib/nokogiri/xml/node_set.rb b/lib/nokogiri/xml/node_set.rb
index 37b3848..149e90e 100644
--- a/lib/nokogiri/xml/node_set.rb
+++ b/lib/nokogiri/xml/node_set.rb
@@ -240,6 +240,14 @@ module Nokogiri
         end
       end
 
+      def map
+        a = []
+        length.times do |x|
+          a << yield(self[x])
+        end
+        a
+      end
+
       ###
       # Get the inner text of all contained Node objects
       def inner_text