diff --git a/lib/awesome_print/ext/mongoid.rb b/lib/awesome_print/ext/mongoid.rb
index 9496c0b..722d661 100644
--- a/lib/awesome_print/ext/mongoid.rb
+++ b/lib/awesome_print/ext/mongoid.rb
@@ -1,3 +1,8 @@
+# Copyright (c) 2010-2011 Michael Dvorkin
+#
+# Awesome Print is freely distributable under the terms of MIT license.
+# See LICENSE file or http://www.opensource.org/licenses/mit-license.php
+#------------------------------------------------------------------------------
module AwesomePrint
module Mongoid
diff --git a/lib/awesome_print/ext/nokogiri.rb b/lib/awesome_print/ext/nokogiri.rb
new file mode 100644
index 0000000..eac34b2
--- /dev/null
+++ b/lib/awesome_print/ext/nokogiri.rb
@@ -0,0 +1,45 @@
+# Copyright (c) 2010-2011 Michael Dvorkin
+#
+# Awesome Print is freely distributable under the terms of MIT license.
+# See LICENSE file or http://www.opensource.org/licenses/mit-license.php
+#------------------------------------------------------------------------------
+module AwesomePrint
+ module Nokogiri
+
+ def self.included(base)
+ base.send :alias_method, :cast_without_nokogiri, :cast
+ base.send :alias_method, :cast, :cast_with_nokogiri
+ end
+
+ # Add Nokogiri XML Node and NodeSet names to the dispatcher pipeline.
+ #------------------------------------------------------------------------------
+ def cast_with_nokogiri(object, type)
+ cast = cast_without_nokogiri(object, type)
+ if (defined?(::Nokogiri::XML::Node) && object.is_a?(::Nokogiri::XML::Node)) ||
+ (defined?(::Nokogiri::XML::NodeSet) && object.is_a?(::Nokogiri::XML::NodeSet))
+ cast = :nokogiri_xml_node
+ end
+ cast
+ end
+
+ #------------------------------------------------------------------------------
+ def awesome_nokogiri_xml_node(object)
+ if object.is_a?(::Nokogiri::XML::NodeSet) && object.empty?
+ return "[]"
+ end
+ xml = object.to_xml(:indent => 2)
+ #
+ # Colorize tag, id/class name, and contents.
+ #
+ xml.gsub!(/(<)(\/?[A-Za-z1-9]+)/) { |tag| "#{$1}#{colorize($2, :keyword)}" }
+ xml.gsub!(/(id|class)="[^"]+"/i) { |id| colorize(id, :class) }
+ xml.gsub!(/>([^<]+)#{contents}<"
+ end
+ xml
+ end
+ end
+end
+
+AwesomePrint::Formatter.send(:include, AwesomePrint::Nokogiri)
diff --git a/spec/ext/nokogiri_spec.rb b/spec/ext/nokogiri_spec.rb
new file mode 100644
index 0000000..cc8e5e8
--- /dev/null
+++ b/spec/ext/nokogiri_spec.rb
@@ -0,0 +1,53 @@
+require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
+
+begin
+ require "nokogiri"
+ require "awesome_print/ext/nokogiri"
+
+ describe "AwesomePrint/Nokogiri" do
+ before do
+ stub_dotfile!
+ end
+
+ it "should colorize tags" do
+ xml = Nokogiri::XML('')
+ xml.ai.should == <<-EOS
+\e[1;32m
+\e[0m<\e[1;36mhtml\e[0m>\e[1;32m
+ \e[0m<\e[1;36mbody\e[0m>\e[1;32m
+ \e[0m<\e[1;36mh1\e[0m/>\e[1;32m
+ \e[0m<\e[1;36m/body\e[0m>\e[1;32m
+\e[0m<\e[1;36m/html\e[0m>
+EOS
+ end
+
+ it "should colorize contents" do
+ xml = Nokogiri::XML('Hello
')
+ xml.ai.should == <<-EOS
+\e[1;32m
+\e[0m<\e[1;36mhtml\e[0m>\e[1;32m
+ \e[0m<\e[1;36mbody\e[0m>\e[1;32m
+ \e[0m<\e[1;36mh1\e[0m>\e[1;32mHello\e[0m<\e[1;36m/h1\e[0m>\e[1;32m
+ \e[0m<\e[1;36m/body\e[0m>\e[1;32m
+\e[0m<\e[1;36m/html\e[0m>
+EOS
+ end
+
+ it "should colorize class and id" do
+ xml = Nokogiri::XML('
')
+ xml.ai.should == <<-EOS
+\e[1;32m
+\e[0m<\e[1;36mhtml\e[0m>\e[1;32m
+ \e[0m<\e[1;36mbody\e[0m>\e[1;32m
+ \e[0m<\e[1;36mh1\e[0m>\e[1;32m
+ \e[0m<\e[1;36mspan\e[0m \e[1;33mid=\"hello\"\e[0m \e[1;33mclass=\"world\"\e[0m/>\e[1;32m
+ \e[0m<\e[1;36m/h1\e[0m>\e[1;32m
+ \e[0m<\e[1;36m/body\e[0m>\e[1;32m
+\e[0m<\e[1;36m/html\e[0m>
+EOS
+ end
+ end
+
+rescue LoadError => error
+ puts "Skipping Nokogiri specs: #{error}"
+end