class Regexps {
  static final url =
      RegExp(r'/https?:\/\/(?:www\.)?([-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b)*(\/[\/\d\w\.-]*)*(?:[\?])*(.+)*/gi');
  static final ipAddress = RegExp(r'^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)(\.(?!$)|$)){4}$');
  static final domain = RegExp(r'^(([a-z0-9|-]+\.)*[a-z0-9|-]+\.[a-z]+)$');
}