This gives less functionality than XML DTDs, since you can have
multiple ATTLISTs for one element type. XSchema should provide that;
maybe
<!ATTLIST XSC:AttDef
ElementType NMTOKEN #IMPLIED>
If the AttDef specifies an ElementType, it applies to the named
element type. If not, and it is contained in an ElementDecl, then it
applies to that element type; otherwise it is an error.
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This is acceptable to me, though I still maintain a preference for what I
consider the much more easily read (and even managed, in my world) nesting
solution. This is a moderate solution that certainly expands the capabilities
of XSchema without exploding everything open. XSchema processors should be
able to normalize this without too much hell breaking loose.
Simon St.Laurent
Dynamic HTML: A Primer / XML: A Primer / Cookies