PHPIDS
Current file: /home/mario/workspace/php-ids.org/trunk/lib/IDS/vendors/htmlpurifier/HTMLPurifier/AttrTransform.php
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       1                 : <?php                                                                          
       2                 :                                                                                
       3                 : /**                                                                            
       4                 :  * Processes an entire attribute array for corrections needing multiple values.
       5                 :  *                                                                             
       6                 :  * Occasionally, a certain attribute will need to be removed and popped onto   
       7                 :  * another value.  Instead of creating a complex return syntax for             
       8                 :  * HTMLPurifier_AttrDef, we just pass the whole attribute array to a           
       9                 :  * specialized object and have that do the special work.  That is the          
      10                 :  * family of HTMLPurifier_AttrTransform.                                       
      11                 :  *                                                                             
      12                 :  * An attribute transformation can be assigned to run before or after          
      13                 :  * HTMLPurifier_AttrDef validation.  See HTMLPurifier_HTMLDefinition for       
      14                 :  * more details.                                                               
      15                 :  */                                                                            
      16                 :                                                                                
      17                 : abstract class HTMLPurifier_AttrTransform                                      
      18               1 : {                                                                              
      19                 :                                                                                
      20                 :     /**                                                                        
      21                 :      * Abstract: makes changes to the attributes dependent on multiple values. 
      22                 :      *                                                                         
      23                 :      * @param $attr Assoc array of attributes, usually from                    
      24                 :      *              HTMLPurifier_Token_Tag::$attr                              
      25                 :      * @param $config Mandatory HTMLPurifier_Config object.                    
      26                 :      * @param $context Mandatory HTMLPurifier_Context object                   
      27                 :      * @returns Processed attribute array.                                     
      28                 :      */                                                                        
      29                 :     abstract public function transform($attr, $config, $context);              
      30                 :                                                                                
      31                 :     /**                                                                        
      32                 :      * Prepends CSS properties to the style attribute, creating the            
      33                 :      * attribute if it doesn't exist.                                          
      34                 :      * @param $attr Attribute array to process (passed by reference)           
      35                 :      * @param $css CSS to prepend                                              
      36                 :      */                                                                        
      37                 :     public function prependCSS(&$attr, $css) {                                 
      38               0 :         $attr['style'] = isset($attr['style']) ? $attr['style'] : '';          
      39               0 :         $attr['style'] = $css . $attr['style'];                                
      40               0 :     }                                                                          
      41                 :                                                                                
      42                 :     /**                                                                        
      43                 :      * Retrieves and removes an attribute                                      
      44                 :      * @param $attr Attribute array to process (passed by reference)           
      45                 :      * @param $key Key of attribute to confiscate                              
      46                 :      */                                                                        
      47                 :     public function confiscateAttr(&$attr, $key) {                             
      48               0 :         if (!isset($attr[$key])) return null;                                  
      49               0 :         $value = $attr[$key];                                                  
      50               0 :         unset($attr[$key]);                                                    
      51               0 :         return $value;                                                         
      52                 :     }                                                                          
      53                 :                                                                                
      54                 : }                                                                              
      55                 :                                                                                

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