1 files changed, 77 insertions, 0 deletions
diff --git a/lib/smarty/sysplugins/smarty_internal_method_loadfilter.php b/lib/smarty/sysplugins/smarty_internal_method_loadfilter.php
new file mode 100644
index 0000000..66d80d4
--- /dev/null
+++ b/lib/smarty/sysplugins/smarty_internal_method_loadfilter.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * Smarty Method LoadFilter
+ *
+ * Smarty::loadFilter() method
+ *
+ * @package    Smarty
+ * @subpackage PluginsInternal
+ * @author     Uwe Tews
+ */
+class Smarty_Internal_Method_LoadFilter
+{
+    /**
+     * Valid for Smarty and template object
+     *
+     * @var int
+     */
+    public $objMap = 3;
+
+    /**
+     * Valid filter types
+     *
+     * @var array
+     */
+    private $filterTypes = array('pre' => true, 'post' => true, 'output' => true, 'variable' => true);
+
+    /**
+     * load a filter of specified type and name
+     *
+     * @api  Smarty::loadFilter()
+     *
+     * @link http://www.smarty.net/docs/en/api.load.filter.tpl
+     *
+     * @param \Smarty_Internal_TemplateBase|\Smarty_Internal_Template|\Smarty $obj
+     * @param string                                                          $type filter type
+     * @param string                                                          $name filter name
+     *
+     * @return bool
+     * @throws SmartyException if filter could not be loaded
+     */
+    public function loadFilter(Smarty_Internal_TemplateBase $obj, $type, $name)
+    {
+        $smarty = $obj->_getSmartyObj();
+        $this->_checkFilterType($type);
+        $_plugin = "smarty_{$type}filter_{$name}";
+        $_filter_name = $_plugin;
+        if (is_callable($_plugin)) {
+            $smarty->registered_filters[ $type ][ $_filter_name ] = $_plugin;
+            return true;
+        }
+        if ($smarty->loadPlugin($_plugin)) {
+            if (class_exists($_plugin, false)) {
+                $_plugin = array($_plugin, 'execute');
+            }
+            if (is_callable($_plugin)) {
+                $smarty->registered_filters[ $type ][ $_filter_name ] = $_plugin;
+                return true;
+            }
+        }
+        throw new SmartyException("{$type}filter '{$name}' not found or callable");
+    }
+
+    /**
+     * Check if filter type is valid
+     *
+     * @param string $type
+     *
+     * @throws \SmartyException
+     */
+    public function _checkFilterType($type)
+    {
+        if (!isset($this->filterTypes[ $type ])) {
+            throw new SmartyException("Illegal filter type '{$type}'");
+        }
+    }
+}