diff -r 2f6f6f7551ca -r 32102edaa81b web/wp-includes/Text/Diff.php
--- a/web/wp-includes/Text/Diff.php	Thu Sep 16 15:45:36 2010 +0000
+++ b/web/wp-includes/Text/Diff.php	Mon Nov 19 18:26:13 2012 +0100
@@ -6,10 +6,8 @@
  * The original PHP version of this code was written by Geoffrey T. Dairiki
  * <dairiki@dairiki.org>, and is used/adapted with his permission.
  *
- * $Horde: framework/Text_Diff/Diff.php,v 1.26 2008/01/04 10:07:49 jan Exp $
- *
  * Copyright 2004 Geoffrey T. Dairiki <dairiki@dairiki.org>
- * Copyright 2004-2008 The Horde Project (http://www.horde.org/)
+ * Copyright 2004-2010 The Horde Project (http://www.horde.org/)
  *
  * See the enclosed file COPYING for license information (LGPL). If you did
  * not receive this file, see http://opensource.org/licenses/lgpl-license.php.
@@ -66,6 +64,44 @@
     }
 
     /**
+     * returns the number of new (added) lines in a given diff.
+     *
+     * @since Text_Diff 1.1.0
+     *
+     * @return integer The number of new lines
+     */
+    function countAddedLines()
+    {
+        $count = 0;
+        foreach ($this->_edits as $edit) {
+            if (is_a($edit, 'Text_Diff_Op_add') ||
+                is_a($edit, 'Text_Diff_Op_change')) {
+                $count += $edit->nfinal();
+            }
+        }
+        return $count;
+    }
+
+    /**
+     * Returns the number of deleted (removed) lines in a given diff.
+     *
+     * @since Text_Diff 1.1.0
+     *
+     * @return integer The number of deleted lines
+     */
+    function countDeletedLines()
+    {
+        $count = 0;
+        foreach ($this->_edits as $edit) {
+            if (is_a($edit, 'Text_Diff_Op_delete') ||
+                is_a($edit, 'Text_Diff_Op_change')) {
+                $count += $edit->norig();
+            }
+        }
+        return $count;
+    }
+
+    /**
      * Computes a reversed diff.
      *
      * Example: