parse_require

# File lib/rdoc/parser/ruby.rb, line 1569
  def parse_require(context, comment)
    skip_tkspace_comment
    tk = get_tk

    if TkLPAREN === tk then
      skip_tkspace_comment
      tk = get_tk
    end

    name = tk.text if TkSTRING === tk

    if name then
      @top_level.add_require RDoc::Require.new(name, comment)
    else
      unget_tk tk
    end
  end