Domain Names
<?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.java2s.com" xmlns="http://www.java2s.com" elementFormDefault="qualified"> <xs:simpleType name="ip_DomainName"> <xs:restriction base="xs:string"> <xs:pattern value="((([A-Za-z0-9])|([A-Za-z0-9][A-Za-z0-9\-]* [A-Za-z0-9]))\.)+(com|edu|gov|mil|net|org)" /> </xs:restriction> </xs:simpleType> </xs:schema>