add smarty lib

libs/sysplugins/smarty_internal_method_clearconfig.php

@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * Smarty Method ClearConfig
+ *
+ * Smarty::clearConfig() method
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ */
+class Smarty_Internal_Method_ClearConfig
+{
+    /**
+     * Valid for all objects
+     *
+     * @var int
+     */
+    public $objMap = 7;
+
+    /**
+     * clear a single or all config variables
+     *
+     * @api  Smarty::clearConfig()
+     * @link http://www.smarty.net/docs/en/api.clear.config.tpl
+     *
+     * @param \Smarty_Internal_Data|\Smarty_Internal_Template|\Smarty $data
+     * @param  string|null                                            $name variable name or null
+     *
+     * @return \Smarty_Internal_Data|\Smarty_Internal_Template|\Smarty
+     */
+    public function clearConfig(Smarty_Internal_Data $data, $name = null)
+    {
+        if (isset($name)) {
+            unset($data->config_vars[ $name ]);
+        } else {
+            $data->config_vars = array();
+        }
+        return $data;
+    }
+}