1 <?php

     2 

     3 /*

     4  * This file is part of Twig.

     5  *

     6  * (c) 2009 Fabien Potencier

     7  *

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

     9  * file that was distributed with this source code.

    10  */

    11 class Twig_Extension_Escaper extends Twig_Extension

    12 {

    13     protected $autoescape;

    14 

    15     public function __construct($autoescape = true)

    16     {

    17         $this->autoescape = $autoescape;

    18     }

    19 

    20     /**

    21      * Returns the token parser instances to add to the existing list.

    22      *

    23      * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances

    24      */

    25     public function getTokenParsers()

    26     {

    27         return array(new Twig_TokenParser_AutoEscape());

    28     }

    29 

    30     /**

    31      * Returns the node visitor instances to add to the existing list.

    32      *

    33      * @return array An array of Twig_NodeVisitorInterface instances

    34      */

    35     public function getNodeVisitors()

    36     {

    37         return array(new Twig_NodeVisitor_Escaper());

    38     }

    39 

    40     /**

    41      * Returns a list of filters to add to the existing list.

    42      *

    43      * @return array An array of filters

    44      */

    45     public function getFilters()

    46     {

    47         return array(

    48             'raw' => new Twig_Filter_Function('twig_raw_filter', array('is_safe' => array('all'))),

    49         );

    50     }

    51 

    52     public function isGlobal()

    53     {

    54         return $this->autoescape;

    55     }

    56 

    57     /**

    58      * Returns the name of the extension.

    59      *

    60      * @return string The extension name

    61      */

    62     public function getName()

    63     {

    64         return 'escaper';

    65     }

    66 }

    67 

    68 /**

    69  * Marks a variable as being safe.

    70  *

    71  * @param string $string A PHP variable

    72  */

    73 function twig_raw_filter($string)

    74 {

    75     return $string;

    76 }

    77