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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\Component\Translation\Loader;
use Symfony\Component\Translation\MessageCatalogue;
use Symfony\Component\Config\Resource\FileResource;
/**
* XliffFileLoader loads translations from XLIFF files.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @api
*/
class XliffFileLoader implements LoaderInterface
{
/**
* {@inheritdoc}
*
* @api
*/
public function load($resource, $locale, $domain = 'messages')
{
if (!stream_is_local($resource)) {
throw new \InvalidArgumentException(sprintf('This is not a local file "%s".', $resource));
}
$xml = $this->parseFile($resource);
$xml->registerXPathNamespace('xliff', 'urn:oasis:names:tc:xliff:document:1.2');
$catalogue = new MessageCatalogue($locale);
foreach ($xml->xpath('//xliff:trans-unit') as $translation) {
if (2 !== count($translation)) {
continue;
}
$catalogue->set((string) $translation->source, (string) $translation->target, $domain);
}
$catalogue->addResource(new FileResource($resource));
return $catalogue;
}
/**
* Validates and parses the given file into a SimpleXMLElement
*
* @param string $file
*
* @return SimpleXMLElement
*/
private function parseFile($file)
{
$dom = new \DOMDocument();
$current = libxml_use_internal_errors(true);
if (!@$dom->load($file, defined('LIBXML_COMPACT') ? LIBXML_COMPACT : 0)) {
throw new \RuntimeException(implode("\n", $this->getXmlErrors()));
}
$location = str_replace('\\', '/', __DIR__).'/schema/dic/xliff-core/xml.xsd';
$parts = explode('/', $location);
if (0 === stripos($location, 'phar://')) {
$tmpfile = tempnam(sys_get_temp_dir(), 'sf2');
if ($tmpfile) {
copy($location, $tmpfile);
$parts = explode('/', str_replace('\\', '/', $tmpfile));
}
}
$drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';
$location = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));
$source = file_get_contents(__DIR__.'/schema/dic/xliff-core/xliff-core-1.2-strict.xsd');
$source = str_replace('http://www.w3.org/2001/xml.xsd', $location, $source);
if (!@$dom->schemaValidateSource($source)) {
throw new \RuntimeException(implode("\n", $this->getXmlErrors()));
}
$dom->validateOnParse = true;
$dom->normalizeDocument();
libxml_use_internal_errors($current);
return simplexml_import_dom($dom);
}
/**
* Returns the XML errors of the internal XML parser
*
* @return array An array of errors
*/
private function getXmlErrors()
{
$errors = array();
foreach (libxml_get_errors() as $error) {
$errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
$error->code,
trim($error->message),
$error->file ? $error->file : 'n/a',
$error->line,
$error->column
);
}
libxml_clear_errors();
libxml_use_internal_errors(false);
return $errors;
}
}
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