--- /dev/null
+<?php
+
+/**
+ * Pre-transform that changes deprecated bgcolor attribute to CSS.
+ */
+class HTMLPurifier_AttrTransform_BgColor extends HTMLPurifier_AttrTransform
+{
+ /**
+ * @param array $attr
+ * @param HTMLPurifier_Config $config
+ * @param HTMLPurifier_Context $context
+ * @return array
+ */
+ public function transform($attr, $config, $context)
+ {
+ if (!isset($attr['bgcolor'])) {
+ return $attr;
+ }
+
+ $bgcolor = $this->confiscateAttr($attr, 'bgcolor');
+ // some validation should happen here
+
+ $this->prependCSS($attr, "background-color:$bgcolor;");
+ return $attr;
+ }
+}
+
+// vim: et sw=4 sts=4