1 <?xml version="1.0" encoding="ISO-8859-1" ?>
3 If ref is present, then all of <simpleType>, form and type must be absent
6 <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://foo" xmlns:foo="http://foo">
10 <attribute ref="foo:bar" type="string"/>
14 <attribute name="bar" type="string"/>