From 010bb1ef926177bea51a7cea749ceb913353dacd Mon Sep 17 00:00:00 2001
From: "Rebecca G. Bettencourt" <beckiejo@gmail.com>
Date: Tue, 2 Oct 2018 22:08:10 -0700
Subject: [PATCH] Add option to remove padding character from EAN-13

---
 LICENSE             |  2 +-
 README.md           | 14 +++++++-------
 barcode-readme.html |  4 +++-
 barcode.php         | 10 ++++++----
 4 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/LICENSE b/LICENSE
index 2f30740..4435b33 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Kreative Software
+Copyright (c) 2016-2018 Kreative Software
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index bd512da..3f755b7 100644
--- a/README.md
+++ b/README.md
@@ -50,13 +50,13 @@ barcode.php?f=svg&s=qr&d=HELLO%20WORLD&sf=8&ms=r&md=0.8
 
 `s` - Symbology (type of barcode). One of:
 ```
-    upc-a     code-39         qr     dmtx
-    upc-e     code-39-ascii   qr-l   dmtx-s
-    ean-13    code-93         qr-m   dmtx-r
-    ean-8     code-93-ascii   qr-q   gs1-dmtx
-    ean-128   code-128        qr-h   gs1-dmtx-s
-              codabar                gs1-dmtx-r
-              itf
+    upc-a          code-39         qr     dmtx
+    upc-e          code-39-ascii   qr-l   dmtx-s
+    ean-8          code-93         qr-m   dmtx-r
+    ean-13         code-93-ascii   qr-q   gs1-dmtx
+    ean-13-pad     code-128        qr-h   gs1-dmtx-s
+    ean-13-nopad   codabar                gs1-dmtx-r
+    ean-128        itf
 ```
 
 `d` - Data. For UPC or EAN, use `*` for missing digit. For Codabar, use `ABCD` or `ENT*` for start and stop characters. For QR, encode in Shift-JIS for kanji mode.
diff --git a/barcode-readme.html b/barcode-readme.html
index ebbbb2d..c138abb 100644
--- a/barcode-readme.html
+++ b/barcode-readme.html
@@ -73,8 +73,10 @@ barcode.php?f=svg&s=qr&d=HELLO%20WORLD&sf=8&ms=r&md=0.8
 					<td>
 						<code>upc-a</code><br>
 						<code>upc-e</code><br>
-						<code>ean-13</code><br>
 						<code>ean-8</code><br>
+						<code>ean-13</code><br>
+						<code>ean-13-pad</code><br>
+						<code>ean-13-nopad</code><br>
 						<code>ean-128</code>
 					</td>
 					<td>
diff --git a/barcode.php b/barcode.php
index 384e670..b111501 100644
--- a/barcode.php
+++ b/barcode.php
@@ -4,7 +4,7 @@
 
 barcode.php - Generate barcodes from a single PHP file. MIT license.
 
-Copyright (c) 2016 Kreative Software.
+Copyright (c) 2016-2018 Kreative Software.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -216,7 +216,9 @@ class barcode_generator {
 		switch (strtolower(preg_replace('/[^A-Za-z0-9]/', '', $symbology))) {
 			case 'upca'       : return $this->upc_a_encode($data);
 			case 'upce'       : return $this->upc_e_encode($data);
-			case 'ean13'      : return $this->ean_13_encode($data);
+			case 'ean13nopad' : return $this->ean_13_encode($data, ' ');
+			case 'ean13pad'   : return $this->ean_13_encode($data, '>');
+			case 'ean13'      : return $this->ean_13_encode($data, '>');
 			case 'ean8'       : return $this->ean_8_encode($data);
 			case 'code39'     : return $this->code_39_encode($data);
 			case 'code39ascii': return $this->code_39_ascii_encode($data);
@@ -720,7 +722,7 @@ class barcode_generator {
 		return array('g' => 'l', 'b' => $blocks);
 	}
 
-	private function ean_13_encode($data) {
+	private function ean_13_encode($data, $pad) {
 		$data = $this->ean_13_normalize($data);
 		$blocks = array();
 		/* Quiet zone, start, first digit (as parity). */
@@ -788,7 +790,7 @@ class barcode_generator {
 		);
 		$blocks[] = array(
 			'm' => array(array(0, 9, 0)),
-			'l' => array('>', 0.5, 2/3)
+			'l' => array($pad, 0.5, 2/3)
 		);
 		/* Return code. */
 		return array('g' => 'l', 'b' => $blocks);