Re: Alternative approach for key/keyref

> I would propose to replace "ancestors" with "parents", and to rewrite
> this subsection accordingly.  Then, 7.4 will become a lot simpler and
> we can still mimick ID/IDREF.
>
> Here is my rewrite.

To make a fair comparison of the relative complexity you need to do a 
formalization using inference rules that prove a keyAmbig() judgement.  If 
you do this, I think you will find your proposal is a little simpler, but a 
not lot.  It's certainly much weaker and in my view much more ad-hoc.

James