<?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\Component\Translation\Loader;
 
 use Symfony\Component\Config\Resource\FileResource;
 use Symfony\Component\Config\Util\XmlUtils;
 use Symfony\Component\Translation\Exception\InvalidResourceException;
 use Symfony\Component\Translation\Exception\NotFoundResourceException;
 use Symfony\Component\Translation\MessageCatalogue;
 
 /**
  * QtFileLoader loads translations from QT Translations XML files.
  *
  * @author Benjamin Eberlei <kontakt@beberlei.de>
  */
 class QtFileLoader implements LoaderInterface
 {
     /**
      * {@inheritdoc}
      */
     public function load($resource, $locale, $domain = 'messages')
     {
         if (!stream_is_local($resource)) {
             throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
         }
 
         if (!file_exists($resource)) {
             throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
         }
 
         try {
             $dom = XmlUtils::loadFile($resource);
         } catch (\InvalidArgumentException $e) {
             throw new InvalidResourceException(sprintf('Unable to load "%s".', $resource), $e->getCode(), $e);
         }
 
         $internalErrors = libxml_use_internal_errors(true);
         libxml_clear_errors();
 
         $xpath = new \DOMXPath($dom);
         $nodes = $xpath->evaluate('//TS/context/name[text()="'.$domain.'"]');
 
         $catalogue = new MessageCatalogue($locale);
         if (1 == $nodes->length) {
             $translations = $nodes->item(0)->nextSibling->parentNode->parentNode->getElementsByTagName('message');
             foreach ($translations as $translation) {
                 $translationValue = (string) $translation->getElementsByTagName('translation')->item(0)->nodeValue;
 
                 if (!empty($translationValue)) {
                     $catalogue->set(
                         (string) $translation->getElementsByTagName('source')->item(0)->nodeValue,
                         $translationValue,
                         $domain
                     );
                 }
                 $translation = $translation->nextSibling;
             }
 
             if (class_exists('Symfony\Component\Config\Resource\FileResource')) {
                 $catalogue->addResource(new FileResource($resource));
             }
         }
 
         libxml_use_internal_errors($internalErrors);
 
         return $catalogue;
     }
 }