1 <?xml version='1.0'?> 2 <!DOCTYPE root [ 3 <!ENTITY % deftest '<!ELEMENT test (#PCDATA) >' > 4 <!ENTITY % defmiddle '<!ELEMENT middle (test) >' > 5 <!ENTITY % defroot '<!ELEMENT root (middle) >' > 6 %defroot;%defmiddle;%deftest; 7 ]> 8 <root><middle><test>sample</test></middle></root> 9
