File indexing completed on 2024-12-22 05:36:18

 <?php
 
 /**
  * Framework class for strings that involve multiple values.
  *
  * Certain CSS properties such as border-width and margin allow multiple
  * lengths to be specified.  This class can take a vanilla border-width
  * definition and multiply it, usually into a max of four.
  *
  * @note Even though the CSS specification isn't clear about it, inherit
  *       can only be used alone: it will never manifest as part of a multi
  *       shorthand declaration.  Thus, this class does not allow inherit.
  */
 class HTMLPurifier_AttrDef_CSS_Multiple extends HTMLPurifier_AttrDef
 {
     /**
      * Instance of component definition to defer validation to.
      * @type HTMLPurifier_AttrDef
      * @todo Make protected
      */
     public $single;
 
     /**
      * Max number of values allowed.
      * @todo Make protected
      */
     public $max;
 
     /**
      * @param HTMLPurifier_AttrDef $single HTMLPurifier_AttrDef to multiply
      * @param int $max Max number of values allowed (usually four)
      */
     public function __construct($single, $max = 4)
     {
         $this->single = $single;
         $this->max = $max;
     }
 
     /**
      * @param string $string
      * @param HTMLPurifier_Config $config
      * @param HTMLPurifier_Context $context
      * @return bool|string
      */
     public function validate($string, $config, $context)
     {
         $string = $this->mungeRgb($this->parseCDATA($string));
         if ($string === '') {
             return false;
         }
         $parts = explode(' ', $string); // parseCDATA replaced \r, \t and \n
         $length = count($parts);
         $final = '';
         for ($i = 0, $num = 0; $i < $length && $num < $this->max; $i++) {
             if (ctype_space($parts[$i])) {
                 continue;
             }
             $result = $this->single->validate($parts[$i], $config, $context);
             if ($result !== false) {
                 $final .= $result . ' ';
                 $num++;
             }
         }
         if ($final === '') {
             return false;
         }
         return rtrim($final);
     }
 }
 
 // vim: et sw=4 sts=4