1 <!DOCTYPE doc [ 2 <!ELEMENT doc (norm+)> 3 <!ELEMENT norm EMPTY> 4 <!ATTLIST norm attr NMTOKENS #IMPLIED> 5 ]> 6 <doc> 7 <norm attr = ' foo bar 8 '/> 9 <norm attr = 'foobar 10 11 '/> 12 <norm attr = 'foo bar '/> 13 <norm attr = ' foo  bar'/> 14 </doc> 15
