module Byebug::EnableDisableFunctions

def enable_disable_display(is_enable, args)
  if 0 == @state.display.size
    return errmsg('No display expressions have been set')
  end
  args.each do |pos|
    pos, err = get_int(pos, "#{is_enable} display", 1, @state.display.size)
    return errmsg(err) unless err.nil?
    @state.display[pos - 1][0] = ('enable' == is_enable)
  end
end