--- /dev/null
+<?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\Translation\Exception\InvalidResourceException;
+use Symfony\Component\Translation\Exception\NotFoundResourceException;
+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, $domain = 'messages')
+ {
+ if (!stream_is_local($resource)) {
+ throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
+ }
+
+ if (!is_dir($resource)) {
+ throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
+ }
+
+ try {
+ $rb = new \ResourceBundle($locale, $resource);
+ } catch (\Exception $e) {
+ // HHVM compatibility: constructor throws on invalid resource
+ $rb = null;
+ }
+
+ if (!$rb) {
+ throw new InvalidResourceException(sprintf('Cannot load resource "%s"', $resource));
+ } elseif (intl_is_failure($rb->getErrorCode())) {
+ throw new InvalidResourceException($rb->getErrorMessage(), $rb->getErrorCode());
+ }
+
+ $messages = $this->flatten($rb);
+ $catalogue = new MessageCatalogue($locale);
+ $catalogue->add($messages, $domain);
+
+ if (class_exists('Symfony\Component\Config\Resource\DirectoryResource')) {
+ $catalogue->addResource(new DirectoryResource($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;
+ }
+}