<?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="test"> <xs:complexType> <xs:attribute name="test1" type="myType"/> <xs:attribute name="test2" type="myType"/> <xs:attribute name="test3" type="myType"/> <xs:attribute name="test4" type="myType"/> <xs:attribute name="test5" type="myType"/> </xs:complexType> </xs:element> <xs:simpleType name="myType"> <xs:restriction base="xs:string"> <xs:pattern value="[56;&#]"/> </xs:restriction> </xs:simpleType> </xs:schema>