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    <h3>Editing: IcuDatFileLoader.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Translation\Loader;

use Symfony\Component\Config\Resource\FileResource;
use Symfony\Component\Translation\Exception\InvalidResourceException;
use Symfony\Component\Translation\Exception\NotFoundResourceException;
use Symfony\Component\Translation\MessageCatalogue;

/**
 * IcuResFileLoader loads translations from a resource bundle.
 *
 * @author stealth35
 */
class IcuDatFileLoader extends IcuResFileLoader
{
    /**
     * {@inheritdoc}
     */
    public function load($resource, string $locale, string $domain = 'messages')
    {
        if (!stream_is_local($resource.'.dat')) {
            throw new InvalidResourceException(sprintf('This is not a local file &quot;%s&quot;.', $resource));
        }

        if (!file_exists($resource.'.dat')) {
            throw new NotFoundResourceException(sprintf('File &quot;%s&quot; not found.', $resource));
        }

        try {
            $rb = new \ResourceBundle($locale, $resource);
        } catch (\Exception $e) {
            $rb = null;
        }

        if (!$rb) {
            throw new InvalidResourceException(sprintf('Cannot load resource &quot;%s&quot;.', $resource));
        } elseif (intl_is_failure($rb-&gt;getErrorCode())) {
            throw new InvalidResourceException($rb-&gt;getErrorMessage(), $rb-&gt;getErrorCode());
        }

        $messages = $this-&gt;flatten($rb);
        $catalogue = new MessageCatalogue($locale);
        $catalogue-&gt;add($messages, $domain);

        if (class_exists(FileResource::class)) {
            $catalogue-&gt;addResource(new FileResource($resource.'.dat'));
        }

        return $catalogue;
    }
}
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