File indexing completed on 2024-12-22 05:36:21

 <?php
 
 /**
  * Validates tel (for phone numbers).
  *
  * The relevant specifications for this protocol are RFC 3966 and RFC 5341,
  * but this class takes a much simpler approach: we normalize phone
  * numbers so that they only include (possibly) a leading plus,
  * and then any number of digits and x'es.
  */
 
 class HTMLPurifier_URIScheme_tel extends HTMLPurifier_URIScheme
 {
     /**
      * @type bool
      */
     public $browsable = false;
 
     /**
      * @type bool
      */
     public $may_omit_host = true;
 
     /**
      * @param HTMLPurifier_URI $uri
      * @param HTMLPurifier_Config $config
      * @param HTMLPurifier_Context $context
      * @return bool
      */
     public function doValidate(&$uri, $config, $context)
     {
         $uri->userinfo = null;
         $uri->host     = null;
         $uri->port     = null;
 
         // Delete all non-numeric characters, non-x characters
         // from phone number, EXCEPT for a leading plus sign.
         $uri->path = preg_replace('/(?!^\+)[^\dx]/', '',
                      // Normalize e(x)tension to lower-case
                      str_replace('X', 'x', $uri->path));
 
         return true;
     }
 }
 
 // vim: et sw=4 sts=4