KnpMarkdownBundle/DependencyInjection/MarkdownExtension.php

<?php

namespace Bundle\MarkdownBundle\DependencyInjection;

use Symfony\Component\DependencyInjection\Extension\Extension;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\DependencyInjection\ContainerBuilder;

class MarkdownExtension extends Extension
{

    public function parserLoad($config, ContainerBuilder $container)
    {
        $loader = new XmlFileLoader($container, __DIR__.'/../Resources/config');
        $loader->load('parser.xml');

        if(isset($config['class'])) {
            $container->setParameter('markdown.parser.class', $config['class']);
        }
    }

    public function helperLoad($config, ContainerBuilder $container)
    {
        $loader = new XmlFileLoader($container, __DIR__.'/../Resources/config');
        $loader->load('helper.xml');
    }

    public function twigLoad($config, ContainerBuilder $container)
    {
        $loader = new XmlFileLoader($container, __DIR__.'/../Resources/config');
        $loader->load('twig.xml');
    }

    /**
     * Returns the base path for the XSD files.
     *
     * @return string The XSD base path
     */
    public function getXsdValidationBasePath()
    {
        return null;
    }

    public function getNamespace()
    {
        return 'http://www.symfony-project.org/schema/dic/symfony';
    }

    public function getAlias()
    {
        return 'markdown';
    }

}