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ab3732f91f
SPDX IDs are shorter than licensing notes previously used, and adhere better to FOSS standards. It is also machine-readable.
30 lines
585 B
PHP
30 lines
585 B
PHP
<?php
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/*
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* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
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* SPDX-License-Identifier: MIT
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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 preg_match;
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/**
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* Validates whether the input contains only vowels.
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*
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author Nick Lombard <github@jigsoft.co.za>
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*/
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final class Vowel extends AbstractFilterRule
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{
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/**
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* {@inheritDoc}
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*/
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protected function validateFilteredInput(string $input): bool
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{
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return preg_match('/^[aeiouAEIOU]+$/', $input) > 0;
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}
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}
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