Question regarding attribute restriction

Is the following restriction on unitsOfMeasure1 valid, i.e., can I use the
tag <xs:enumeration value=""/> in the restriction?  Thanks!

Robert

<xs:element name="height">
	<xs:attribute name="unitsOfMeasure1" use="required">
		<xs:simpleType>
			<xs:restriction base="xs:token">
				<xs:enumeration value="ft"/>
				<xs:enumeration value=""/>
			</xs:restriction>
		</xs:simpleType>
	</xs:attribute>
	.....
</xs:element>

Received on Friday, 24 May 2002 05:05:44 UTC