<xsd:simpleType name="AttributeDescriptionValue"> <xsd:restriction base="xsd:string"> <xsd:pattern value="((([0-2](\.[0-9]+)+)|([a-zA-Z]+([a-zA-Z0-9]|[-])*))(;([a-zA-Z0-9]|[-])+)*)"/> </xsd:restriction> </xsd:simpleType>