Possible negative match

diff --git a/wcfsetup/install/files/lib/util/DirectoryUtil.class.php b/wcfsetup/install/files/lib/util/DirectoryUtil.class.php
index 3614e7462c1ed50cf6b0fa29ac0a20e1942d7093..6e01af6d5e3dfad5c49ad48cf84b25e45d61271c 100644 (file)
--- a/wcfsetup/install/files/lib/util/DirectoryUtil.class.php
+++ b/wcfsetup/install/files/lib/util/DirectoryUtil.class.php
@@ -136,10 +136,12 @@ class DirectoryUtil {
        /**
         * Returns a sorted list of files
         *
-        * @param       integer         $order  sort-order
+        * @param       integer         $order                  sort-order
+        * @param       string          $pattern                        pattern to match
+        * @param       boolean         $negativeMatch  should the pattern be inversed
         * @return      array<string>
         */
-       public function getFiles($order = SORT_ASC, $pattern = '') {
+       public function getFiles($order = SORT_ASC, $pattern = '', $negativeMatch = false) {
                // scan the folder
                $this->scanFiles();
                $files = $this->files;
@@ -147,7 +149,7 @@ class DirectoryUtil {
                // sort out non matching files
                if (!empty($pattern)) {
                        foreach ($files as $filename => $value) {
-                               if (!preg_match($pattern, $filename)) unset($files[$filename]);
+                               if (!preg_match($pattern, $filename) == $negativeMatch) unset($files[$filename]);
                        }
                }
 
@@ -170,10 +172,12 @@ class DirectoryUtil {
        /**
         * Returns a sorted list of files, with DirectoryIterator object as value
         *
-        * @param       integer                         $order  sort-order
+        * @param       integer                         $order                  sort-order
+        * @param       string                          $pattern                        pattern to match
+        * @param       boolean                         $negativeMatch  should the pattern be inversed
         * @return      array<DirectoryIterator>
         */
-       public function getFilesObj($order = SORT_ASC, $pattern = '') {
+       public function getFilesObj($order = SORT_ASC, $pattern = '', $negativeMatch = false) {
                // scan the folder
                $this->scanFilesObj();
                $objects = $this->filesObj;
@@ -181,7 +185,7 @@ class DirectoryUtil {
                // sort out non matching files
                if (!empty($pattern)) {
                        foreach ($objects as $filename => $value) {
-                               if (!preg_match($pattern, $filename)) unset($objects[$filename]);
+                               if (!preg_match($pattern, $filename) == $negativeMatch) unset($objects[$filename]);
                        }
                }