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
38: