<?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;
/**
* ArrayLoader loads translations from a PHP array.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @api
*/
class ArrayLoader implements LoaderInterface
{
/**
* {@inheritdoc}
*
* @api
*/
public function load($resource, $locale, $domain = 'messages')
{
$this->flatten($resource);
$catalogue = new MessageCatalogue($locale);
$catalogue->add($resource, $domain);
return $catalogue;
}
/**
* Flattens an nested array of translations
*
* The scheme used is:
* 'key' => array('key2' => array('key3' => 'value'))
* Becomes:
* 'key.key2.key3' => 'value'
*
* This function takes an array by reference and will modify it
*
* @param array &$messages The array that will be flattened
* @param array $subnode Current subnode being parsed, used internally for recursive calls
* @param string $path Current path being parsed, used internally for recursive calls
*/
private function flatten(array &$messages, array $subnode = null, $path = null)
{
if (null === $subnode) {
$subnode =& $messages;
}
foreach ($subnode as $key => $value) {
if (is_array($value)) {
$nodePath = $path ? $path.'.'.$key : $key;
$this->flatten($messages, $value, $nodePath);
if (null === $path) {
unset($messages[$key]);
}
} elseif (null !== $path) {
$messages[$path.'.'.$key] = $value;
}
}
}
}
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