new file mode 100644
--- /dev/null
+++ b/library/smarty/libs/sysplugins/smartyexception.php
@@ -0,0 +1,14 @@
+<?php
+
+/**
+ * Smarty exception class
+ *
+ * @package Smarty
+ */
+class SmartyException extends Exception {
+    public static $escape = false;
+
+    public function __toString() {
+        return ' --> Smarty: ' . (self::$escape ? htmlentities($this->message) : $this->message) . ' <-- ';
+    }
+}