NelmioApiDocBundle/DependencyInjection/Configuration.php

<?php

/*
 * This file is part of the ApiDocBundle package.
 *
 * (c) EXSyst
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace EXSyst\Bundle\ApiDocBundle\DependencyInjection;

use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;

class Configuration implements ConfigurationInterface
{
    public function getConfigTreeBuilder()
    {
        $treeBuilder = new TreeBuilder();
        $treeBuilder
            ->root('exsyst_api_doc')
            ->children()
                ->arrayNode('routes')
                    ->info('Filter the routes that are documented')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->arrayNode('path_patterns')
                            ->example(array('^/api', '^/api(?!/admin)'))
                            ->prototype('scalar')->end()
                        ->end()
                    ->end()
                ->end()
            ->end();


        return $treeBuilder;
    }
}