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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\DirectoryResource;
/**
* IcuResFileLoader loads translations from a resource bundle.
*
* @author stealth35
*/
class IcuResFileLoader implements LoaderInterface
{
/**
* {@inheritdoc}
*/
public function load($resource, $locale, $domain = 'messages')
{
$rb = new \ResourceBundle($locale, $resource);
if (!$rb) {
throw new \RuntimeException("cannot load this resource : $resource");
} elseif (intl_is_failure($rb->getErrorCode())) {
throw new \RuntimeException($rb->getErrorMessage(), $rb->getErrorCode());
}
$messages = $this->flatten($rb);
$catalogue = new MessageCatalogue($locale);
$catalogue->add($messages, $domain);
$catalogue->addResource(new DirectoryResource($resource));
return $catalogue;
}
/**
* Flattens an ResourceBundle
*
* The scheme used is:
* key { key2 { key3 { "value" } } }
* Becomes:
* 'key.key2.key3' => 'value'
*
* This function takes an array by reference and will modify it
*
* @param \ResourceBundle $rb the ResourceBundle that will be flattened
* @param array $messages used internally for recursive calls
* @param string $path current path being parsed, used internally for recursive calls
*
* @return array the flattened ResourceBundle
*/
protected function flatten(\ResourceBundle $rb, array &$messages = array(), $path = null)
{
foreach ($rb as $key => $value) {
$nodePath = $path ? $path.'.'.$key : $key;
if ($value instanceof \ResourceBundle) {
$this->flatten($value, $messages, $nodePath);
} else {
$messages[$nodePath] = $value;
}
}
return $messages;
}
}
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