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diff --git a/vendor/smarty/smarty/docs/programmers/api-functions/api-register-default-plugin-handler.md b/vendor/smarty/smarty/docs/programmers/api-functions/api-register-default-plugin-handler.md
new file mode 100644
index 000000000..9447d9620
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+++ b/vendor/smarty/smarty/docs/programmers/api-functions/api-register-default-plugin-handler.md
@@ -0,0 +1,93 @@
+registerDefaultPluginHandler()
+
+register a function which gets called on undefined tags
+
+Description
+===========
+
+void
+
+registerDefaultPluginHandler
+
+mixed
+
+callback
+
+Register a default plugin handler which gets called if the compiler can
+not find a definition for a tag otherwise. It uses the following
+parameters:
+
+If during compilation Smarty encounters tag which is not defined
+internal, registered or loacted in the plugins folder it tries to
+resolve it by calling the registered default plugin handler. The handler
+may be called several times for same undefined tag looping over valid
+plugin types.
+
+
+    <?php
+
+    $smarty = new Smarty();
+    $smarty->registerDefaultPluginHandler('my_plugin_handler');
+
+    /**
+     * Default Plugin Handler
+     *
+     * called when Smarty encounters an undefined tag during compilation
+     * 
+     * @param string                     $name      name of the undefined tag
+     * @param string                     $type     tag type (e.g. Smarty::PLUGIN_FUNCTION, Smarty::PLUGIN_BLOCK, 
+                                                   Smarty::PLUGIN_COMPILER, Smarty::PLUGIN_MODIFIER, Smarty::PLUGIN_MODIFIERCOMPILER)
+     * @param Smarty_Internal_Template   $template     template object
+     * @param string                     &$callback    returned function name 
+     * @param string                     &$script      optional returned script filepath if function is external
+     * @param bool                       &$cacheable    true by default, set to false if plugin is not cachable (Smarty >= 3.1.8)
+     * @return bool                      true if successfull
+     */
+    function my_plugin_handler ($name, $type, $template, &$callback, &$script, &$cacheable)
+    {
+        switch ($type) {
+            case Smarty::PLUGIN_FUNCTION:
+                switch ($name) {
+                    case 'scriptfunction':
+                        $script = './scripts/script_function_tag.php';
+                        $callback = 'default_script_function_tag';
+                        return true;
+                    case 'localfunction':
+                        $callback = 'default_local_function_tag';
+                        return true;
+                    default:
+                    return false;
+                }
+            case Smarty::PLUGIN_COMPILER:
+                switch ($name) {
+                    case 'scriptcompilerfunction':
+                        $script = './scripts/script_compiler_function_tag.php';
+                        $callback = 'default_script_compiler_function_tag';
+                        return true;
+                    default:
+                    return false;
+                }
+            case Smarty::PLUGIN_BLOCK:
+                switch ($name) {
+                    case 'scriptblock':
+                        $script = './scripts/script_block_tag.php';
+                        $callback = 'default_script_block_tag';
+                        return true;
+                    default:
+                    return false;
+                }
+            default:
+            return false;
+        }
+     }
+
+    ?>
+
+      
+
+> **Note**
+>
+> The return callback must be static; a function name or an array of
+> class and method name.
+>
+> Dynamic callbacks like objects methods are not supported.