From 13b39903d23f5a603f27cbb360803d07087b4f4d Mon Sep 17 00:00:00 2001
From: Connor Tumbleson <connor.tumbleson@gmail.com>
Date: Sat, 26 Dec 2015 06:59:57 -0500
Subject: [PATCH] empty or null values should not be matched

---
 .../main/java/brut/androlib/res/data/value/ResStringValue.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResStringValue.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResStringValue.java
index a7cabc59..94f568c8 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResStringValue.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResStringValue.java
@@ -65,6 +65,9 @@ public class ResStringValue extends ResScalarValue {
     }
 
     private String checkIfStringIsNumeric(String val) {
+        if (val == null || val.isEmpty()) {
+            return val;
+        }
         return allDigits.matcher(val).matches() ? "\\ " + val : val;
     }