2.3.6.1.3.4 UniqueIdentifierWithoutBracesOrEmpty
This simple type specifies the restrictions for specifying a GUID without braces or an empty string.
Referenced by: DummyContentTypeElement.DummyContentType@web
<xsd:simpleType name="UniqueIdentifierWithoutBracesOrEmpty">
<xsd:restriction base="xsd:string">
<xsd:pattern value="[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}|"/>
<xsd:minLength value="0"/>
</xsd:restriction>
</xsd:simpleType>