From 4d250d90dfc8c0580627f896a2c316b861431abf Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Thu, 12 Sep 2024 19:30:32 -0600
Subject: [PATCH] Work around bug #76 decoding particular MS+ effect

---
 zoomzt2.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/zoomzt2.py b/zoomzt2.py
index f778509..6417580 100644
--- a/zoomzt2.py
+++ b/zoomzt2.py
@@ -89,7 +89,11 @@
 TXE1 = Struct(
     Const(b"TXE1"),
     "length" / Int32ul,
-    "description" / PaddedString(this.length, "ascii"),
+    "peekdescription" / Peek(FixedSized(this.length, PaddedString(this.length, "ascii"))),
+    "description" /  IfThenElse(lambda ctx: ctx.peekdescription == None,
+         "description" / Bytes(this.length),
+         "description" / PaddedString(this.length, "ascii"),
+    ),
 )
 
 INFO = Struct(