gistfile1.rb

 def link_to(*args, &block)
        if block_given?
          options      = args.first || {}
          html_options = args.second
          concat(link_to(capture(&block), options, html_options))
        else
          name         = args.first
          options      = args.second || {}
          html_options = args.third

          url = url_for(options)

          if html_options
            html_options = html_options.stringify_keys
            href = html_options['href']
            convert_options_to_javascript!(html_options, url)
            tag_options = tag_options(html_options)
          else
            tag_options = nil
          end

          href_attr = "href=\"#{url}\"" unless href
          "<a #{href_attr}#{tag_options}>#{name || url}</a>"
        end
      end