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

 <?php
 
 /**
  * Validates a MultiLength as defined by the HTML spec.
  *
  * A multilength is either a integer (pixel count), a percentage, or
  * a relative number.
  */
 class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
 {
 
     /**
      * @param string $string
      * @param HTMLPurifier_Config $config
      * @param HTMLPurifier_Context $context
      * @return bool|string
      */
     public function validate($string, $config, $context)
     {
         $string = trim($string);
         if ($string === '') {
             return false;
         }
 
         $parent_result = parent::validate($string, $config, $context);
         if ($parent_result !== false) {
             return $parent_result;
         }
 
         $length = strlen($string);
         $last_char = $string[$length - 1];
 
         if ($last_char !== '*') {
             return false;
         }
 
         $int = substr($string, 0, $length - 1);
 
         if ($int == '') {
             return '*';
         }
         if (!is_numeric($int)) {
             return false;
         }
 
         $int = (int)$int;
         if ($int < 0) {
             return false;
         }
         if ($int == 0) {
             return '0';
         }
         if ($int == 1) {
             return '*';
         }
         return ((string)$int) . '*';
     }
 }
 
 // vim: et sw=4 sts=4