ERB::Util#html_escape creates fewer objects

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7513 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/base.rb

@@ -1,5 +1,15 @@
 require 'erb'
 
+class ERB
+  module Util
+    HTML_ESCAPE = { '&' => '&amp;', '"' => '&quot;', '>' => '&gt;', '<' => '&lt;' }
+
+    def html_escape(s)
+      s.to_s.gsub(/[&\"><]/) { |special| HTML_ESCAPE[special] }
+    end
+  end
+end
+
 module ActionView #:nodoc:
   class ActionViewError < StandardError #:nodoc:
   end