File indexing completed on 2024-12-22 05:36:19

 <?php
 
 /**
  * Generic pre-transform that converts an attribute with a fixed number of
  * values (enumerated) to CSS.
  */
 class HTMLPurifier_AttrTransform_EnumToCSS extends HTMLPurifier_AttrTransform
 {
     /**
      * Name of attribute to transform from.
      * @type string
      */
     protected $attr;
 
     /**
      * Lookup array of attribute values to CSS.
      * @type array
      */
     protected $enumToCSS = array();
 
     /**
      * Case sensitivity of the matching.
      * @type bool
      * @warning Currently can only be guaranteed to work with ASCII
      *          values.
      */
     protected $caseSensitive = false;
 
     /**
      * @param string $attr Attribute name to transform from
      * @param array $enum_to_css Lookup array of attribute values to CSS
      * @param bool $case_sensitive Case sensitivity indicator, default false
      */
     public function __construct($attr, $enum_to_css, $case_sensitive = false)
     {
         $this->attr = $attr;
         $this->enumToCSS = $enum_to_css;
         $this->caseSensitive = (bool)$case_sensitive;
     }
 
     /**
      * @param array $attr
      * @param HTMLPurifier_Config $config
      * @param HTMLPurifier_Context $context
      * @return array
      */
     public function transform($attr, $config, $context)
     {
         if (!isset($attr[$this->attr])) {
             return $attr;
         }
 
         $value = trim($attr[$this->attr]);
         unset($attr[$this->attr]);
 
         if (!$this->caseSensitive) {
             $value = strtolower($value);
         }
 
         if (!isset($this->enumToCSS[$value])) {
             return $attr;
         }
         $this->prependCSS($attr, $this->enumToCSS[$value]);
         return $attr;
     }
 }
 
 // vim: et sw=4 sts=4