| <!DOCTYPE doc [ | |
| <!ELEMENT doc (tst*)> | |
| <!ELEMENT tst (#PCDATA)> | |
| <!ATTLIST tst a NMTOKENS #IMPLIED> | |
| <!ATTLIST tst b CDATA #IMPLIED> | |
| <!ENTITY d "
"> | |
| <!ENTITY a "
"> | |
| <!ENTITY da "
"> | |
| ]> | |
| <doc> | |
| <tst a=" | |
| xyz" b=" | |
| xyz"/> | |
| <tst a="&d;&d;A&a; &a;B&da;" b="&d;&d;A&a; &a;B&da;"/> | |
| <tst a="

A

B
" b="

A

B
"/> | |
| <tst a=" x  y " b=" x  y "/> | |
| <tst a=" a b " b=" a b "/> | |
| <tst a=" a b " b=" a b "/> | |
| </doc> | |