parse_require

# File lib/rdoc/parsers/parse_rb.rb, line 2407
  def parse_require(context, comment)
    skip_tkspace_comment
    tk = get_tk
    if tk.kind_of? TkLPAREN
      skip_tkspace_comment
      tk = get_tk
    end

    name = nil
    case tk
    when TkSTRING
      name = tk.text
#    when TkCONSTANT, TkIDENTIFIER, TkIVAR, TkGVAR
#      name = tk.name
    when TkDSTRING
      warn "Skipping require of dynamic string: #{tk.text}"
 #   else
 #     warn "'require' used as variable"
    end
    if name
      context.add_require(Require.new(name, comment))
    else
      unget_tk(tk)
    end
  end