various issues

[Digitome Ltd]

>Peter Murray-Rust writes:
 > I think I start to understand.  By 'structure' you mean the tree structure
 > of each DTD?  In which case AFs are a way of providing multiple views of the
 > same document?

An AF is like a virtual class in OO-speak. HyTime is a bit like a set of 
virtual class definitions. From these virtual classes you derive your own
classes (DTDs) that inherit from their super-class(HyTime).

Multiple inheritance is allowwed. That is, a given DTD can inherit from
multiple AF super-classes.

I am on dodgier ground now but I think AF's are virtual rather than pure virtual
classes. I.e.  an AF can be a DTD if you want it to.

Hope this helps,

Sean




xml-dev: A list for W3C XML Developers
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To unsubscribe, send to majordomo at ic.ac.uk the following message;
unsubscribe xml-dev
List coordinator, Henry Rzepa (rzepa at ic.ac.uk)