vendor/symfony/translation/Symfony/Component/Translation/Loader/QtFileLoader.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Translation\Loader;
  13
  14 use Symfony\Component\Translation\MessageCatalogue;
  15 use Symfony\Component\Translation\Exception\InvalidResourceException;
  16 use Symfony\Component\Translation\Exception\NotFoundResourceException;
  17 use Symfony\Component\Config\Resource\FileResource;
  18
  19 /**
  20  * QtFileLoader loads translations from QT Translations XML files.
  21  *
  22  * @author Benjamin Eberlei <kontakt@beberlei.de>
  23  *
  24  * @api
  25  */
  26 class QtFileLoader implements LoaderInterface
  27 {
  28     /**
  29      * {@inheritdoc}
  30      *
  31      * @api
  32      */
  33     public function load($resource, $locale, $domain = 'messages')
  34     {
  35         if (!stream_is_local($resource)) {
  36             throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
  37         }
  38
  39         if (!file_exists($resource)) {
  40             throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
  41         }
  42
  43         $dom = new \DOMDocument();
  44         $current = libxml_use_internal_errors(true);
  45         if (!@$dom->load($resource, defined('LIBXML_COMPACT') ? LIBXML_COMPACT : 0)) {
  46             throw new InvalidResourceException(implode("\n", $this->getXmlErrors()));
  47         }
  48
  49         $xpath = new \DOMXPath($dom);
  50         $nodes = $xpath->evaluate('//TS/context/name[text()="'.$domain.'"]');
  51
  52         $catalogue = new MessageCatalogue($locale);
  53         if ($nodes->length == 1) {
  54             $translations = $nodes->item(0)->nextSibling->parentNode->parentNode->getElementsByTagName('message');
  55             foreach ($translations as $translation) {
  56                 $catalogue->set(
  57                     (string) $translation->getElementsByTagName('source')->item(0)->nodeValue,
  58                     (string) $translation->getElementsByTagName('translation')->item(0)->nodeValue,
  59                     $domain
  60                 );
  61                 $translation = $translation->nextSibling;
  62             }
  63             $catalogue->addResource(new FileResource($resource));
  64         }
  65
  66         libxml_use_internal_errors($current);
  67
  68         return $catalogue;
  69     }
  70
  71     /**
  72      * Returns the XML errors of the internal XML parser
  73      *
  74      * @return array An array of errors
  75      */
  76     private function getXmlErrors()
  77     {
  78         $errors = array();
  79         foreach (libxml_get_errors() as $error) {
  80             $errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
  81                 LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
  82                 $error->code,
  83                 trim($error->message),
  84                 $error->file ? $error->file : 'n/a',
  85                 $error->line,
  86                 $error->column
  87             );
  88         }
  89
  90         libxml_clear_errors();
  91         libxml_use_internal_errors(false);
  92
  93         return $errors;
  94     }
  95 }