# File lib/nokogiri/xml/builder.rb, line 5
      def initialize(&block)
        namespace = self.class.name.split('::')
        namespace[-1] = 'Document'
        @doc = eval(namespace.join('::')).new
        @parent = @doc
        @context = eval('self', block.binding)
        instance_eval(&block)
        @parent = @doc
      end