# File lib/sup/modes/edit-message-mode.rb, line 163
  def attach_file
    fn = BufferManager.ask_for_filename :attachment, "File name (enter for browser): "
    return unless fn
    begin
      Dir[fn].each do |f|
        @attachments << RMail::Message.make_file_attachment(f)
        @attachment_names << f
      end
      update
    rescue SystemCallError => e
      BufferManager.flash "Can't read #{fn}: #{e.message}"
    end
  end