* {% 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 %} * */ class Twig_TokenParser_AutoEscape 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) { $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 Boolean.', $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)) { 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'); } /** * Gets the tag name associated with this token parser. * * @return string The tag name */ public function getTag() { return 'autoescape'; } }