From c530854aadfbbfd07a5c87e8e45b86ddebd79ecb Mon Sep 17 00:00:00 2001
From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Wed, 29 Dec 2004 16:04:07 +0000
Subject: [PATCH] skip fields with length 0, OpenIsis produce binary junk in
 this case.

git-svn-id: file:///home/dpavlin/svn/Biblio-Isis/trunk@10 4670fa4d-42ec-0310-ab5b-a66af6943492
---
 IsisDB.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/IsisDB.pm b/IsisDB.pm
index 6ca64f1..ac0e051 100644
--- a/IsisDB.pm
+++ b/IsisDB.pm
@@ -329,6 +329,9 @@ print ("Error: The MFN:".$mfn." is not found in MST(".$value.")");
 	read($self->{'fileMST'},$buff,$fld_len);
 
 	for (my $i = 0 ; $i < $NVF ; $i++) {
+		# skip zero-sized fields
+		next if ($FieldLEN[$i] == 0);
+
 		push @{$self->{record}->{$FieldTAG[$i]}}, substr($buff,$FieldPOS[$i],$FieldLEN[$i]);
 	}
 	close(fileMST);
-- 
2.20.1