# File lib/wicked_pdf/wicked_pdf_helper/assets.rb, line 15
      def wicked_pdf_stylesheet_link_tag(*sources)
        stylesheet_contents = sources.collect do |source|
          source = WickedPdfHelper.add_extension(source, 'css')
          "<style type='text/css'>#{read_asset(source)}</style>"
        end.join("\n")

        stylesheet_contents.gsub(ASSET_URL_REGEX) do
          if Regexp.last_match[1].starts_with?('data:')
            "url(#{Regexp.last_match[1]})"
          else
            "url(#{wicked_pdf_asset_path(Regexp.last_match[1])})"
          end
        end.html_safe
      end