Re: [XOM-interest] Non NCName IDs

> > I'm not sure what you mean by "registered".  If you mean recognised as
> > an ID and normalised as one, then yes.  This is (by design) the same
> > as for an ID attribute declared in a DTD: validity does not affect
> > normalisation or type assignment.

>   And that's how we end up with software expecting id('1234') or 
> id('foo bar') to work in XPath. I still think it's a disaster to
> let this go though while we had the opportunity to block it and
> force the cleanup for xml:id

If it had been changed, it would have been the only case where the
type of an attribute depended on its value.

-- Richard