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951c16e8e6Since we have the ability to use `not` as a prefix, having rules that validate negative behaviour makes them a bit inflexible, verbose, and harder to understand. This commit will refactor the `NotEmoji` and rename it to `Emoji`. It will no longer check if the string contains emojis, but rather if the string is an emoji or not. I’m also adding support to more emojis, since the rule was a bit outdated. This change will make the validator more strict, but will make it useful in other scenarios. However, later on, I would like to create a rule called `has` which, could use a validator like `Emoji` to check if the input _has_ emojis. Assisted-by: Cursor (claude-4.5-opus-high)
62 lines
2 KiB
PHP
62 lines
2 KiB
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 Attribute;
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use Respect\Validation\Message\Template;
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use Respect\Validation\Rules\Core\Simple;
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use function is_string;
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use function preg_match;
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#[Attribute(Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)]
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#[Template(
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'{{subject}} must be an emoji',
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'{{subject}} must not be an emoji',
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)]
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final class Emoji extends Simple
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{
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private const string REGEX = <<<'REGEX'
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(?:
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# Tag sequence for country flags
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[\x{1F1E6}-\x{1F1FF}]{2}
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# Tag sequence for subdivision flags
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\x{1F3F4}[\x{E0020}-\x{E007E}]+\x{E007F}
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# Keycap sequences
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[0-9#*](?:\x{FE0F})?\x{20E3}
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# Standard emoji cluster:
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\p{Extended_Pictographic} # base emoji
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(?:\x{FE0F})? # optional emoji variant selector
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(?:[\x{1F3FB}-\x{1F3FF}])? # optional skin tone modifier
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(?: # optionally repeat ZWJ sequences:
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\x{200D} # ZWJ
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(?: # joined element:
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\p{Extended_Pictographic} # another emoji
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[\x{2640}\x{2642}\x{26A7}] # or gender symbol
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)
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(?:\x{FE0F})? # optional variant selector
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(?:[\x{1F3FB}-\x{1F3FF}])? # optional skin tone modifier
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)* # ...zero or more times
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)
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REGEX;
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public function isValid(mixed $input): bool
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{
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if (!is_string($input)) {
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return false;
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}
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return preg_match('/^' . self::REGEX . '+$/ux', $input) === 1;
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}
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}
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