From 986bcded55b7821c4fd54703d8cab7af8cd141eb Mon Sep 17 00:00:00 2001
From: David Maus <maus@hab.de>
Date: Tue, 7 Nov 2017 14:51:55 +0100
Subject: [PATCH] Regelsatz: Export/Import Klasse und Mapping Metadata optional

---
 src/ruleset.rnc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ruleset.rnc b/src/ruleset.rnc
index 815e19f..3f2a9d0 100644
--- a/src/ruleset.rnc
+++ b/src/ruleset.rnc
@@ -153,12 +153,12 @@ PicaPlusImportMappingElements =
 
 MetsModsSerialization =
    element METS {
-      MetsModsSerializationClass
+      MetsModsSerializationClass?
     & MetsModsSerializationNamespace*
     & MetsModsSerializationAnchorQuery?
     & MetsModsSerializationAnchorIdentifierMetadataType?
     & MetsModsSerializationValueRegExp?
-    & MetsModsSerializationMetadataMapping+
+    & MetsModsSerializationMetadataMapping*
     & MetsModsSerializationDocStructMapping+
    }
 
-- 
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