* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Validator\Constraints; use Symfony\Component\Validator\Constraint; use Symfony\Component\Validator\ConstraintValidator; use Symfony\Component\Validator\Exception\UnexpectedTypeException; use Symfony\Component\Validator\Exception\UnexpectedValueException; /** * Validates whether a value match or not given regexp pattern. * * @author Bernhard Schussek * @author Joseph Bielawski */ class RegexValidator extends ConstraintValidator { public function validate(mixed $value, Constraint $constraint): void { if (!$constraint instanceof Regex) { throw new UnexpectedTypeException($constraint, Regex::class); } if (null === $value || '' === $value) { return; } if (!\is_scalar($value) && !$value instanceof \Stringable) { throw new UnexpectedValueException($value, 'string'); } $value = (string) $value; if (null !== $constraint->normalizer) { $value = ($constraint->normalizer)($value); } if ($constraint->match xor preg_match($constraint->pattern, $value)) { $this->context->buildViolation($constraint->message) ->setParameter('{{ value }}', $this->formatValue($value)) ->setParameter('{{ pattern }}', $constraint->pattern) ->setCode(Regex::REGEX_FAILED_ERROR) ->addViolation(); } } }