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EmojiExtension.php
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EmojiExtension.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bridge\Twig\Extension;
use Symfony\Component\Emoji\EmojiTransliterator;
use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;
/**
* @author Grégoire Pineau <lyrixx@lyrixx.info>
*/
final class EmojiExtension extends AbstractExtension
{
private static array $transliterators = [];
public function __construct()
{
if (!class_exists(EmojiTransliterator::class)) {
throw new \LogicException('You cannot use the "emojify" filter as the "Emoji" component is not installed. Try running "composer require symfony/emoji".');
}
}
public function getFilters(): array
{
return [
new TwigFilter('emojify', $this->emojify(...)),
];
}
public function emojify(string $string, string $catalog = 'slack'): string
{
try {
$tr = self::$transliterators[$catalog] ??= EmojiTransliterator::create($catalog, EmojiTransliterator::REVERSE);
} catch (\IntlException $e) {
throw new \LogicException(sprintf('The emoji catalog "%s" is not available.', $catalog), previous: $e);
}
return (string) $tr->transliterate($string);
}
}