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 

    16 /**

    17  * ArrayLoader loads translations from a PHP array.

    18  *

    19  * @author Fabien Potencier <fabien@symfony.com>

    20  *

    21  * @api

    22  */

    23 class ArrayLoader implements LoaderInterface

    24 {

    25     /**

    26      * {@inheritdoc}

    27      *

    28      * @api

    29      */

    30     public function load($resource, $locale, $domain = 'messages')

    31     {

    32         $this->flatten($resource);

    33         $catalogue = new MessageCatalogue($locale);

    34         $catalogue->add($resource, $domain);

    35 

    36         return $catalogue;

    37     }

    38 

    39     /**

    40      * Flattens an nested array of translations

    41      *

    42      * The scheme used is:

    43      *   'key' => array('key2' => array('key3' => 'value'))

    44      * Becomes:

    45      *   'key.key2.key3' => 'value'

    46      *

    47      * This function takes an array by reference and will modify it

    48      *

    49      * @param array $messages the array that will be flattened

    50      * @param array $subnode current subnode being parsed, used internally for recursive calls

    51      * @param string $path current path being parsed, used internally for recursive calls

    52      */

    53     private function flatten(array &$messages, array $subnode = null, $path = null)

    54     {

    55         if (null === $subnode) {

    56             $subnode =& $messages;

    57         }

    58         foreach ($subnode as $key => $value) {

    59             if (is_array($value)) {

    60                 $nodePath = $path ? $path.'.'.$key : $key;

    61                 $this->flatten($messages, $value, $nodePath);

    62                 if (null === $path) {

    63                     unset($messages[$key]);

    64                 }

    65             } elseif (null !== $path) {

    66                 $messages[$path.'.'.$key] = $value;

    67             }

    68         }

    69     }

    70 }