<?php
/**
* Defines a mutation of an obsolete tag into a valid tag.
*/
abstract class HTMLPurifier_TagTransform
{
/**
* Tag name to transform the tag to.
* @type string
*/
public $transform_to;
/**
* Transforms the obsolete tag into the valid tag.
* @param HTMLPurifier_Token_Tag $tag Tag to be transformed.
* @param HTMLPurifier_Config $config Mandatory HTMLPurifier_Config object
* @param HTMLPurifier_Context $context Mandatory HTMLPurifier_Context object
*/
abstract public function transform($tag, $config, $context);
/**
* Prepends CSS properties to the style attribute, creating the
* attribute if it doesn't exist.
* @warning Copied over from AttrTransform, be sure to keep in sync
* @param array $attr Attribute array to process (passed by reference)
* @param string $css CSS to prepend
*/
protected function prependCSS(&$attr, $css)
{
$attr['style'] = isset($attr['style']) ? $attr['style'] : '';
$attr['style'] = $css . $attr['style'];
}
}
// vim: et sw=4 sts=4