# File lib/maruku/input/parse_block.rb, line 158
  def read_ald(src)
    if (l = src.shift_line) =~ AttributeDefinitionList
      id = $1
      al = read_attribute_list(CharSource.new($2, src))
      self.ald[id] = al;
      md_ald(id, al)
    else
      maruku_error "Bug Bug:\n#{l.inspect}"
      nil
    end
  end