2 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
3 elementFormDefault="qualified"
4 attributeFormDefault="unqualified">
5 <xs:simpleType name="myDouble">
6 <xs:union memberTypes="xs:double">
8 <xs:restriction base="xs:string">
9 <xs:pattern value="\s*(N/A)?\s*"/>
14 <xs:element name="element1" type="myDouble"/>
15 <xs:element name="element2">
18 <xs:extension base="myDouble">
19 <xs:attribute name="att" type="xs:string"/>