Validating a string matches a regular expression

import 'package:luthor/luthor.dart';

void main() {
  final validator = l.string().regex(RegExp(r'^[a-zA-Z0-9]+$'));
  print(validator.validateValue('Hello123'));
}

import 'package:luthor/luthor.dart';
import 'package:freezed_annotation/freezed_annotation.dart';

part 'regex.freezed.dart';
part 'regex.g.dart';

@luthor
@freezed
abstract class RegexSchema with _$RegexSchema {
  const factory RegexSchema({
    @MatchRegex(r'^[a-zA-Z0-9]+$') required String value,
  }) = _RegexSchema;

  factory RegexSchema.fromJson(Map<String, dynamic> json) =>
      _$RegexSchemaFromJson(json);
}

void main() {
  final result = $RegexSchemaValidate({'value': 'Hello123'});

  switch (result) {
    case SchemaValidationSuccess(data: final data):
      print('✅ Valid: ${data.value}');
    case SchemaValidationError(errors: final errors):
      print('❌ Errors: $errors');
  }
}