From 035008bded080b646526643d71fdf8dee29739e2 Mon Sep 17 00:00:00 2001
From: Jens Kutilek <webmail@kutilek.de>
Date: Wed, 24 Sep 2014 12:21:33 +0200
Subject: [PATCH] Pad graphicType if len() < 4

---
 Lib/fontTools/ttLib/tables/sbixStrike.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Lib/fontTools/ttLib/tables/sbixStrike.py b/Lib/fontTools/ttLib/tables/sbixStrike.py
index dedc01f1b..3f5959d1d 100644
--- a/Lib/fontTools/ttLib/tables/sbixStrike.py
+++ b/Lib/fontTools/ttLib/tables/sbixStrike.py
@@ -116,6 +116,12 @@ class Strike(object):
 		elif name == "glyph":
 			if "graphicType" in attrs:
 				myFormat = attrs["graphicType"]
+				if len(myFormat) > 4:
+					from fontTools import ttLib
+					raise ttLib.TTLibError("graphicType must not be longer than 4 characters.")
+				elif len(myFormat) < 4:
+					# pad with spaces
+					myFormat += " " * (4 - len(myFormat))
 			else:
 				myFormat = None
 			if "glyphname" in attrs: