18 lines
414 B
Dart
18 lines
414 B
Dart
|
// Inspired by https://github.com/suragch/string_validator/blob/master/lib/src/validator.dart
|
||
|
|
|
||
|
|
final _ipv4 = RegExp(r'^(\d?\d?\d)\.(\d?\d?\d)\.(\d?\d?\d)\.(\d?\d?\d)$');
|
||
|
|
|
||
|
|
bool ipValidator(str) {
|
||
|
|
if (str == null) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!_ipv4.hasMatch(str)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
var parts = str.split('.');
|
||
|
|
parts.sort((a, b) => int.parse(a) - int.parse(b));
|
||
|
|
return int.parse(parts[3]) <= 255;
|
||
|
|
}
|