Initial commit.

lib/htmlpurifier-3.0.0/library/HTMLPurifier/AttrTransform/BdoDir.php

@@ -0,0 +1,30 @@
+<?php
+
+require_once 'HTMLPurifier/AttrTransform.php';
+
+// this MUST be placed in post, as it assumes that any value in dir is valid
+
+HTMLPurifier_ConfigSchema::define(
+    'Attr', 'DefaultTextDir', 'ltr', 'string',
+    'Defines the default text direction (ltr or rtl) of the document '.
+    'being parsed.  This generally is the same as the value of the dir '.
+    'attribute in HTML, or ltr if that is not specified.'
+);
+HTMLPurifier_ConfigSchema::defineAllowedValues(
+    'Attr', 'DefaultTextDir', array( 'ltr', 'rtl' )
+);
+
+/**
+ * Post-trasnform that ensures that bdo tags have the dir attribute set.
+ */
+class HTMLPurifier_AttrTransform_BdoDir extends HTMLPurifier_AttrTransform
+{
+    
+    public function transform($attr, $config, $context) {
+        if (isset($attr['dir'])) return $attr;
+        $attr['dir'] = $config->get('Attr', 'DefaultTextDir');
+        return $attr;
+    }
+    
+}
+