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45 lines
1 KiB
PHP
45 lines
1 KiB
PHP
<?php
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/*
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* This file is part of Respect/Validation.
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*
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* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the "LICENSE.md"
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* file that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace Respect\Validation\Rules;
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use function is_null;
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use function is_scalar;
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use function preg_match;
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/**
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* Validates whether a string contains no whitespace (spaces, tabs and line breaks).
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*
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* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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* @author Augusto Pascutti <augusto@phpsp.org.br>
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* @author Danilo Benevides <danilobenevides01@gmail.com>
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* @author Henrique Moody <henriquemoody@gmail.com>
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*/
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final class NoWhitespace extends AbstractRule
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{
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/**
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* {@inheritdoc}
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*/
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public function validate($input): bool
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{
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if (is_null($input)) {
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return true;
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}
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if (false === is_scalar($input)) {
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return false;
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}
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return !preg_match('#\s#', (string) $input);
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}
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}
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