<?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\Extension;

use Symfony\Component\Yaml\Dumper as YamlDumper;

/**

 * Provides integration of the Yaml component with Twig.

 *

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

 */

class YamlExtension extends \Twig_Extension

{

    /**

     * {@inheritdoc}

     */

    public function getFilters()

    {

        return array(

            'yaml_encode' => new \Twig_Filter_Method($this, 'encode'),

            'yaml_dump'   => new \Twig_Filter_Method($this, 'dump'),

        );

    }

    public function encode($input, $inline = 0)

    {

        static $dumper;

        if (null === $dumper) {

            $dumper = new YamlDumper();

        }

        return $dumper->dump($input, $inline);

    }

    public function dump($value)

    {

        if (is_resource($value)) {

            return '%Resource%';

        }

        if (is_array($value) || is_object($value)) {

            return '%'.gettype($value).'% '.$this->encode($value);

        }

        return $value;

    }

    /**

     * Returns the name of the extension.

     *

     * @return string The extension name

     */

    public function getName()

    {

        return 'yaml';

    }

}