From 6ebf8251f504a850431467896ccb22c5de278f91 Mon Sep 17 00:00:00 2001
From: Francis Gonzales <fgonzalestello91@gmail.com>
Date: Mon, 18 Jul 2016 11:47:52 -0500
Subject: [PATCH 1/2] Update Code128.php

Avoiding warning in the last character https://github.com/zendframework/zend-barcode/issues/28
---
 src/Barcode/Code128.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Barcode/Code128.php b/src/Barcode/Code128.php
index 245960073..d17e7d7ce 100644
--- a/src/Barcode/Code128.php
+++ b/src/Barcode/Code128.php
@@ -180,7 +180,10 @@ public function hasValidCharacters($value)
                     break;
             }
 
-            $value = $strWrapper->substr($value, 1, null);
+            if (!empty($value) && $value != '') {
+                $value = $strWrapper->substr($value, 1, null);
+            }
+            
             $read  = $set;
         }
 

From 5551b3d698b1eae7502936e406cc280019c2052f Mon Sep 17 00:00:00 2001
From: Francis Gonzales <fgonzalestello91@gmail.com>
Date: Mon, 18 Jul 2016 11:54:40 -0500
Subject: [PATCH 2/2] Update Code128.php

---
 src/Barcode/Code128.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Barcode/Code128.php b/src/Barcode/Code128.php
index d17e7d7ce..da4172f75 100644
--- a/src/Barcode/Code128.php
+++ b/src/Barcode/Code128.php
@@ -180,7 +180,7 @@ public function hasValidCharacters($value)
                     break;
             }
 
-            if (!empty($value) && $value != '') {
+            if (!empty($value) && strlen($value) > 1) {
                 $value = $strWrapper->substr($value, 1, null);
             }