passes method

  1. @override
FutureOr<bool> passes(
  1. ValidationContext context
)
override

Validates the value using the given context.

Returns true if valid, otherwise false.

Implementation

@override
FutureOr<bool> passes(ValidationContext context) {
  final value = context.value;
  if (value == null || value is! String) return false;
  // Unicode letters, numbers, dash and underscore
  return RegExp(r'^[\p{L}\p{N}_-]+$', unicode: true).hasMatch(value);
}