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<?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\Bridge\Twig\Translation;
use Symfony\Component\Finder\Finder;
use Symfony\Component\Translation\Extractor\ExtractorInterface;
use Symfony\Component\Translation\MessageCatalogue;
/**
* TwigExtractor extracts translation messages from a twig template.
*
* @author Michel Salib <michelsalib@hotmail.com>
* @author Fabien Potencier <fabien@symfony.com>
*/
class TwigExtractor implements ExtractorInterface
{
/**
* Default domain for found messages.
*
* @var string
*/
private $defaultDomain = 'messages';
/**
* Prefix for found message.
*
* @var string
*/
private $prefix = '';
/**
* The twig environment.
*
* @var \Twig_Environment
*/
private $twig;
public function __construct(\Twig_Environment $twig)
{
$this->twig = $twig;
}
/**
* {@inheritDoc}
*/
public function extract($directory, MessageCatalogue $catalogue)
{
// load any existing translation files
$finder = new Finder();
$files = $finder->files()->name('*.twig')->sortByName()->in($directory);
foreach ($files as $file) {
$this->extractTemplate(file_get_contents($file->getPathname()), $catalogue);
}
}
/**
* {@inheritDoc}
*/
public function setPrefix($prefix)
{
$this->prefix = $prefix;
}
protected function extractTemplate($template, MessageCatalogue $catalogue)
{
$visitor = $this->twig->getExtension('translator')->getTranslationNodeVisitor();
$visitor->enable();
$this->twig->parse($this->twig->tokenize($template));
foreach ($visitor->getMessages() as $message) {
$catalogue->set(trim($message[0]), $this->prefix.trim($message[0]), $message[1] ? $message[1] : $this->defaultDomain);
}
$visitor->disable();
}
}