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<?php
/*
* This file is part of Respect/Validation.
*
* (c) Alexandre Gomes Gaigalas <[email protected]>
* For the full copyright and license information, please view the "LICENSE.md"
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace Respect\Validation\Rules;
use function ctype_cntrl;
/**
* Validates if all of the characters in the provided string, are control characters.
* @author Andre Ramaciotti <[email protected]>
* @author Danilo Correa <[email protected]>
* @author Henrique Moody <[email protected]>
* @author Nick Lombard <[email protected]>
final class Control extends AbstractFilterRule
{
* {@inheritDoc}
protected function validateFilteredInput(string $input): bool
return ctype_cntrl($input);
}