1 files changed, 12 insertions, 14 deletions
diff --git a/activesupport/lib/active_support/xml_mini.rb b/activesupport/lib/active_support/xml_mini.rb
index 8ae8e7cefe..d2a882b685 100644
--- a/activesupport/lib/active_support/xml_mini.rb
+++ b/activesupport/lib/active_support/xml_mini.rb
@@ -1,21 +1,19 @@
-# = XmlMini
 module ActiveSupport
+  # = XmlMini
   module XmlMini
     extend self
+    delegate :parse, :to => :@backend
 
-    CONTENT_KEY = '__content__'.freeze
-
-    # Hook the correct parser into XmlMini
-    def hook_parser
-      begin
-        require 'xml/libxml' unless defined? LibXML
-        require "active_support/xml_mini/libxml.rb"
-      rescue MissingSourceFile => e
-        require "active_support/xml_mini/rexml.rb"
-      end
+    def backend=(name)
+      require "active_support/xml_mini/#{name.to_s.downcase}.rb"
+      @backend = ActiveSupport.const_get("XmlMini_#{name}")
     end
+  end
 
-    hook_parser
-
+  begin
+    gem 'libxml-ruby', '=0.9.4', '=0.9.7'
+    XmlMini.backend = 'LibXML'
+  rescue Gem::LoadError
+    XmlMini.backend = 'REXML'
   end
-end
-\ No newline at end of file
+end