# File lib/kramdown/parser/kramdown/link.rb, line 48
      def add_link(el, href, title, alt_text = nil)
        if el.type == :a
          el.attr['href'] = href
        else
          el.attr['src'] = href
          el.attr['alt'] = alt_text
          el.children.clear
        end
        el.attr['title'] = title if title
        @tree.children << el
      end