1 <?xml version="1.0"?> 2 <!DOCTYPE doc [ 3 <!ELEMENT doc (src | dest)*> 4 <!ELEMENT src EMPTY> 5 <!ELEMENT dest EMPTY> 6 <!ATTLIST src ref IDREF #IMPLIED> 7 <!ATTLIST dest id ID #IMPLIED> 8 ]> 9 <doc> 10 <src ref="foo"/> 11 <dest id="foo"/> 12 <src ref="foo"/> 13 </doc> 14
