<?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\Extractor;
  
  use Symfony\Component\Translation\MessageCatalogue;
  
  /**
   * ChainExtractor extracts translation messages from template files.
   *
   * @author Michel Salib <michelsalib@hotmail.com>
   */
  class ChainExtractor implements ExtractorInterface
  {
      /**
       * The extractors.
       *
       * @var ExtractorInterface[]
       */
      private $extractors = [];
  
      /**
       * Adds a loader to the translation extractor.
       */
      public function addExtractor(string $format, ExtractorInterface $extractor)
      {
          $this->extractors[$format] = $extractor;
      }
  
      /**
       * {@inheritdoc}
       */
      public function setPrefix(string $prefix)
      {
          foreach ($this->extractors as $extractor) {
              $extractor->setPrefix($prefix);
          }
      }
  
      /**
       * {@inheritdoc}
       */
      public function extract($directory, MessageCatalogue $catalogue)
      {
          foreach ($this->extractors as $extractor) {
              $extractor->extract($directory, $catalogue);
          }
      }
  }