From 0dc6a49ef5ed84c95cc4e0e9764057edd40b6b14 Mon Sep 17 00:00:00 2001
From: Reinhard Pointner <rednoah@users.noreply.github.com>
Date: Thu, 7 Apr 2016 16:43:40 +0000
Subject: [PATCH] Deal with empty strings as if they're null in the format

---
 source/net/filebot/format/ExpressionFormatFunctions.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/net/filebot/format/ExpressionFormatFunctions.java b/source/net/filebot/format/ExpressionFormatFunctions.java
index c7aaf90d..c83d8d35 100644
--- a/source/net/filebot/format/ExpressionFormatFunctions.java
+++ b/source/net/filebot/format/ExpressionFormatFunctions.java
@@ -31,6 +31,9 @@ public class ExpressionFormatFunctions {
 				return null;
 			}
 		}
+		if (object instanceof CharSequence && object.toString().isEmpty()) {
+			return null;
+		}
 		return object;
 	}