* SPDX-License-Identifier: MIT */ declare(strict_types=1); namespace Respect\Validation\Rules; use Attribute; use Respect\Validation\Message\Template; use Respect\Validation\Rules\Core\Simple; use function is_string; use function preg_match; #[Attribute(Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)] #[Template( '{{subject}} must be a valid MAC address', '{{subject}} must not be a valid MAC address', )] final class MacAddress extends Simple { public function isValid(mixed $input): bool { if (!is_string($input)) { return false; } return preg_match('/^(([0-9a-fA-F]{2}-){5}|([0-9a-fA-F]{2}:){5})[0-9a-fA-F]{2}$/', $input) > 0; } }