2.2.5.2 CaseInsensitiveTrueFalseOrEmpty

The definition of the CaseInsensitiveTrueFalseOrEmpty simple type is as follows.

 <s:simpleType name="CaseInsensitiveTrueFalseOrEmpty">
   <s:restriction base="s:string">
     <s:pattern value="([Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee])?"/>
   </s:restriction>
 </s:simpleType>