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