library/HTMLPurifier/TagTransform.php

   1 <?php
   2
   3 /**
   4  * Defines a mutation of an obsolete tag into a valid tag.
   5  */
   6 abstract class HTMLPurifier_TagTransform
   7 {
   8
   9     /**
  10      * Tag name to transform the tag to.
  11      */
  12     public $transform_to;
  13
  14     /**
  15      * Transforms the obsolete tag into the valid tag.
  16      * @param $tag Tag to be transformed.
  17      * @param $config Mandatory HTMLPurifier_Config object
  18      * @param $context Mandatory HTMLPurifier_Context object
  19      */
  20     abstract public function transform($tag, $config, $context);
  21
  22     /**
  23      * Prepends CSS properties to the style attribute, creating the
  24      * attribute if it doesn't exist.
  25      * @warning Copied over from AttrTransform, be sure to keep in sync
  26      * @param $attr Attribute array to process (passed by reference)
  27      * @param $css CSS to prepend
  28      */
  29     protected function prependCSS(&$attr, $css) {
  30         $attr['style'] = isset($attr['style']) ? $attr['style'] : '';
  31         $attr['style'] = $css . $attr['style'];
  32     }
  33
  34 }
  35
  36 // vim: et sw=4 sts=4