# File lib/kramdown/parser/kramdown.rb, line 254
      def update_attr_with_ial(attr, ial)
        ial[:refs].each do |ref|
          update_attr_with_ial(attr, ref) if ref = @alds[ref]
        end if ial[:refs]
        ial.each do |k,v|
          if k == IAL_CLASS_ATTR
            attr[k] = (attr[k] || '') << " #{v}"
            attr[k].lstrip!
          elsif k.kind_of?(String)
            attr[k] = v
          end
        end
      end