mistpark 2.0 infrasturcture lands

[friendica.git] / library / HTMLPurifier / TagTransform.php

diff --git a/library/HTMLPurifier/TagTransform.php b/library/HTMLPurifier/TagTransform.php
new file mode 100644 (file)
index 0000000..210a447
--- /dev/null
+++ b/library/HTMLPurifier/TagTransform.php
@@ -0,0 +1,36 @@
+<?php
+
+/**
+ * Defines a mutation of an obsolete tag into a valid tag.
+ */
+abstract class HTMLPurifier_TagTransform
+{
+
+    /**
+     * Tag name to transform the tag to.
+     */
+    public $transform_to;
+
+    /**
+     * Transforms the obsolete tag into the valid tag.
+     * @param $tag Tag to be transformed.
+     * @param $config Mandatory HTMLPurifier_Config object
+     * @param $context Mandatory HTMLPurifier_Context object
+     */
+    abstract public function transform($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 $attr Attribute array to process (passed by reference)
+     * @param $css CSS to prepend
+     */
+    protected function prependCSS(&$attr, $css) {
+        $attr['style'] = isset($attr['style']) ? $attr['style'] : '';
+        $attr['style'] = $css . $attr['style'];
+    }
+
+}
+
+// vim: et sw=4 sts=4