[Bug 5040] Hanlding of reference constraints on different kinds of elements

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5040





------- Comment #2 from sandygao@ca.ibm.com  2007-10-25 16:46 -------
The reference proposal covers part of the question raised by this bug, but not
all.

The remaining question is: If an SML reference is unresolved (that is,
sml:ref="true", sml:nilref="false", no target), then
- Should targetElement be satisfied or violated
- Should targetType be satisfied or violated

For completeness, what we did decide:

                Acyclic         targetRequired  targetElement   targetType
Non-reference   Satisfied       Satisfied       Satisfied       Satisfied
Null            Satisfied       Violated        Satisfied       Satisfied
Unresolved      Satisfied       Violated        ?               ?
Resolved        Check           Satisfied       Check           Check