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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Translation\Loader;
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use Symfony\Component\Config\Resource\DirectoryResource;
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use Symfony\Component\Translation\Exception\InvalidResourceException;
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use Symfony\Component\Translation\Exception\NotFoundResourceException;
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use Symfony\Component\Translation\MessageCatalogue;
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/**
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* IcuResFileLoader loads translations from a resource bundle.
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*
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* @author stealth35
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*/
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class IcuResFileLoader implements LoaderInterface
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{
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public function load(mixed $resource, string $locale, string $domain = 'messages'): MessageCatalogue
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{
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if (!stream_is_local($resource)) {
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throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
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}
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if (!is_dir($resource)) {
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throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
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}
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try {
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$rb = new \ResourceBundle($locale, $resource);
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} catch (\Exception) {
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$rb = null;
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}
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if (!$rb) {
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throw new InvalidResourceException(sprintf('Cannot load resource "%s".', $resource));
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} elseif (intl_is_failure($rb->getErrorCode())) {
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throw new InvalidResourceException($rb->getErrorMessage(), $rb->getErrorCode());
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}
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$messages = $this->flatten($rb);
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$catalogue = new MessageCatalogue($locale);
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$catalogue->add($messages, $domain);
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if (class_exists(DirectoryResource::class)) {
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$catalogue->addResource(new DirectoryResource($resource));
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}
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return $catalogue;
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}
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/**
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* Flattens an ResourceBundle.
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*
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* The scheme used is:
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* key { key2 { key3 { "value" } } }
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* Becomes:
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* 'key.key2.key3' => 'value'
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*
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* This function takes an array by reference and will modify it
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*
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* @param \ResourceBundle $rb The ResourceBundle that will be flattened
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* @param array $messages Used internally for recursive calls
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* @param string $path Current path being parsed, used internally for recursive calls
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*/
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protected function flatten(\ResourceBundle $rb, array &$messages = [], string $path = null): array
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{
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foreach ($rb as $key => $value) {
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$nodePath = $path ? $path.'.'.$key : $key;
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if ($value instanceof \ResourceBundle) {
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$this->flatten($value, $messages, $nodePath);
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} else {
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$messages[$nodePath] = $value;
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}
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}
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return $messages;
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}
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}
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