<?php

/*

 * This file is part of Twig.

 *

 * (c) 2010 Fabien Potencier

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

/**

 * Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.

 *

 * <pre>

 * {% sandbox %}

 *     {% include 'user.html' %}

 * {% endsandbox %}

 * </pre>

 *

 * @see http://www.twig-project.org/doc/api.html#sandbox-extension for details

 */

class Twig_TokenParser_Sandbox extends Twig_TokenParser

{

    /**

     * Parses a token and returns a node.

     *

     * @param Twig_Token $token A Twig_Token instance

     *

     * @return Twig_NodeInterface A Twig_NodeInterface instance

     */

    public function parse(Twig_Token $token)

    {

        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);

        $body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);

        $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);

        return new Twig_Node_Sandbox($body, $token->getLine(), $this->getTag());

    }

    public function decideBlockEnd(Twig_Token $token)

    {

        return $token->test('endsandbox');

    }

    /**

     * Gets the tag name associated with this token parser.

     *

     * @param string The tag name

     */

    public function getTag()

    {

        return 'sandbox';

    }

}