>
> Would you say that a new basic text book about XML should
> hardly mention XInclude, XLink, and XPointer at all, at least
> not in whole chapters, but maybe in some paragraph in a
> chapter about failed standards?
In the case of XLink and XPointer, yes: I'd say these are historical
curiosities, and the only interest in them is in understanding why they
failed.
XInclude I think has some merit: even if it's not widely used, it's viable
to use it, and there are situations where I would recommend using it in
preference to external entity references. But plain URIs held in
user-defined attributes are probably just as effective for many
applications.
Regards,
Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay