| <?xml version="1.0"?> | |
| <!DOCTYPE doc [ | |
| <!ELEMENT doc (#PCDATA)> | |
| <!ATTLIST doc At NMTOKEN "$$$"> | |
| <!ATTLIST doc Ok NMTOKEN "1abc_2"> | |
| <!ATTLIST doc bad IDREF "1abc_2"> | |
| <!ATTLIST doc ok2 IDREF "abc_2"> | |
| <!ATTLIST doc bad2 IDREFS "abc:1 1abc_2"> | |
| <!ATTLIST doc ok3 IDREFS "abc:1 a1bc_2"> | |
| ]> | |
| <doc val="v1"/> | |