WB 2.11.0

<?php

/*

 * This file is part of Twig.

 *

 * (c) 2009 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 to be escaped or not.

 *

 * <pre>

 * {% autoescape true %}

 *   Everything will be automatically escaped in this block

 * {% endautoescape %}

 *

 * {% autoescape false %}

 *   Everything will be outputed as is in this block

 * {% endautoescape %}

 *

 * {% autoescape true js %}

 *   Everything will be automatically escaped in this block

 *   using the js escaping strategy

 * {% endautoescape %}

 * </pre>

 */

class Twig_TokenParser_AutoEscape extends Twig_TokenParser

{

    public function parse(Twig_Token $token)

    {

        $lineno = $token->getLine();

        $stream = $this->parser->getStream();

        if ($stream->test(Twig_Token::BLOCK_END_TYPE)) {

            $value = 'html';

        } else {

            $expr = $this->parser->getExpressionParser()->parseExpression();

            if (!$expr instanceof Twig_Node_Expression_Constant) {

                throw new Twig_Error_Syntax('An escaping strategy must be a string or a bool.', $stream->getCurrent()->getLine(), $stream->getFilename());

            }

            $value = $expr->getAttribute('value');

            $compat = true === $value || false === $value;

            if (true === $value) {

                $value = 'html';

            }

            if ($compat && $stream->test(Twig_Token::NAME_TYPE)) {

                @trigger_error('Using the autoescape tag with "true" or "false" before the strategy name is deprecated since version 1.21.', E_USER_DEPRECATED);

                if (false === $value) {

                    throw new Twig_Error_Syntax('Unexpected escaping strategy as you set autoescaping to false.', $stream->getCurrent()->getLine(), $stream->getFilename());

                }

                $value = $stream->next()->getValue();

            }

        }

        $stream->expect(Twig_Token::BLOCK_END_TYPE);

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

        $stream->expect(Twig_Token::BLOCK_END_TYPE);

        return new Twig_Node_AutoEscape($value, $body, $lineno, $this->getTag());

    }

    public function decideBlockEnd(Twig_Token $token)

    {

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

    }

    public function getTag()

    {

        return 'autoescape';

    }

}