Implement filter

System/File/Local/Directory.php

@@ -83,10 +83,15 @@ class Directory extends FileAbstract implements DirectoryInterface
 
         $list     = [];
         $path     = rtrim($path, '\\/');
-
-        foreach ($iterator = new \RecursiveIteratorIterator(
+        $iterator = new \RecursiveIteratorIterator(
             new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS),
-            \RecursiveIteratorIterator::SELF_FIRST) as $item
+            \RecursiveIteratorIterator::SELF_FIRST);
+
+        if ($filter !== '*') {
+            return \RegexIterator($iterator, '/' . $filter . '/i', \RecursiveRegexIterator::GET_MATCH);
+        }
+
+        foreach ($iterator as $item
         ) {
             $list[] = str_replace('\\', '/', $iterator->getSubPathname());
         }