# File lib/wikicloth/core_ext.rb, line 38
    def auto_link
      doc = Nokogiri::HTML::DocumentFragment.parse(to_s)
      doc.xpath(".//text()").each do |node|
        autolink = Twitter::Autolink.auto_link_urls(node.to_s, :suppress_no_follow => true, :target_blank => false)
        autolink = HTMLEntities.new.decode(autolink) if node.parent.name == "pre"
        node.replace autolink
      end
      doc.to_s
    end