floating attributes in XSchema Spec Section 2.4, Draft 2

Simon St.Laurent SimonStL at classic.msn.com
Fri Jun 26 01:41:16 BST 1998

Chris Maden writes:
> In XSchema 1.0, an attribute declaration (XSC:AttDef element) must
> be nested within the element declaration (XSC:ElementDecl element)
> for the element to which the attribute belongs.

This gives less functionality than XML DTDs, since you can have
multiple ATTLISTs for one element type.  XSchema should provide that;

          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.

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

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