Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Translation\Loader;
Chris@0: 
Chris@0: use Symfony\Component\Translation\MessageCatalogue;
Chris@0: 
Chris@0: /**
Chris@0:  * ArrayLoader loads translations from a PHP array.
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: class ArrayLoader implements LoaderInterface
Chris@0: {
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function load($resource, $locale, $domain = 'messages')
Chris@0:     {
Chris@0:         $this->flatten($resource);
Chris@0:         $catalogue = new MessageCatalogue($locale);
Chris@0:         $catalogue->add($resource, $domain);
Chris@0: 
Chris@0:         return $catalogue;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Flattens an nested array of translations.
Chris@0:      *
Chris@0:      * The scheme used is:
Chris@17:      *   'key' => ['key2' => ['key3' => 'value']]
Chris@0:      * Becomes:
Chris@0:      *   'key.key2.key3' => 'value'
Chris@0:      *
Chris@0:      * This function takes an array by reference and will modify it
Chris@0:      *
Chris@0:      * @param array  &$messages The array that will be flattened
Chris@0:      * @param array  $subnode   Current subnode being parsed, used internally for recursive calls
Chris@0:      * @param string $path      Current path being parsed, used internally for recursive calls
Chris@0:      */
Chris@0:     private function flatten(array &$messages, array $subnode = null, $path = null)
Chris@0:     {
Chris@0:         if (null === $subnode) {
Chris@0:             $subnode = &$messages;
Chris@0:         }
Chris@0:         foreach ($subnode as $key => $value) {
Chris@17:             if (\is_array($value)) {
Chris@0:                 $nodePath = $path ? $path.'.'.$key : $key;
Chris@0:                 $this->flatten($messages, $value, $nodePath);
Chris@0:                 if (null === $path) {
Chris@0:                     unset($messages[$key]);
Chris@0:                 }
Chris@0:             } elseif (null !== $path) {
Chris@0:                 $messages[$path.'.'.$key] = $value;
Chris@0:             }
Chris@0:         }
Chris@0:     }
Chris@0: }