--- /dev/null
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 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>
+ *
+ * @final
+ */
+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->getSourceContext());
+ }
+ $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->getSourceContext());
+ }
+
+ $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';
+ }
+}