1 files changed, 31 insertions, 0 deletions

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Lang.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Lang.php
new file mode 100644
index 00000000..591b8ca7
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Lang.php
@@ -0,0 +1,31 @@
+<?php

+

+/**

+ * Post-transform that copies lang's value to xml:lang (and vice-versa)

+ * @note Theoretically speaking, this could be a pre-transform, but putting

+ *       post is more efficient.

+ */

+class HTMLPurifier_AttrTransform_Lang extends HTMLPurifier_AttrTransform

+{

+

+    /**

+     * @param array $attr

+     * @param HTMLPurifier_Config $config

+     * @param HTMLPurifier_Context $context

+     * @return array

+     */

+    public function transform($attr, $config, $context)

+    {

+        $lang = isset($attr['lang']) ? $attr['lang'] : false;

+        $xml_lang = isset($attr['xml:lang']) ? $attr['xml:lang'] : false;

+

+        if ($lang !== false && $xml_lang === false) {

+            $attr['xml:lang'] = $lang;

+        } elseif ($xml_lang !== false) {

+            $attr['lang'] = $xml_lang;

+        }

+        return $attr;

+    }

+}

+

+// vim: et sw=4 sts=4