2022-12-24 22:10:40 +08:00
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<?php
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/*
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2024-01-31 22:15:08 +08:00
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* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
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* SPDX-License-Identifier: MIT
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2022-12-24 22:10:40 +08:00
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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 Respect\Validation\Exceptions\ComponentException;
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use function is_null;
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use function mb_strlen;
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use function mb_substr;
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use function preg_match;
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use function sprintf;
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/**
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* Validate numbers in any base, even with non regular bases.
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*
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* @author Carlos André Ferrari <caferrari@gmail.com>
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author William Espindola <oi@williamespindola.com.br>
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*/
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final class Base extends AbstractRule
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{
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/**
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* @var string
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*/
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private $chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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/**
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* @var int
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*/
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private $base;
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/**
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* Initializes the Base rule.
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*/
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public function __construct(int $base, ?string $chars = null)
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{
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if (!is_null($chars)) {
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$this->chars = $chars;
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}
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$max = mb_strlen($this->chars);
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if ($base > $max) {
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throw new ComponentException(sprintf('a base between 1 and %s is required', $max));
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}
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$this->base = $base;
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}
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/**
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* {@inheritDoc}
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*/
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public function validate($input): bool
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{
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$valid = mb_substr($this->chars, 0, $this->base);
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return (bool) preg_match('@^[' . $valid . ']+$@', (string) $input);
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}
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}
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