Re: XSchema Spec Section 2.3, Draft 1

John Cowan (cowan@locke.ccil.org)
Thu, 11 Jun 1998 14:15:39 -0400


Simon St.Laurent wrote:

> I can accept dropping the PCData - it takes out a nuisance declaration - but
> now I wonder about PCData elements. They're technically Mixed but without any
> optional elements. Do we need PCData elements?

That was my original design. Ron thought it was clearer to allow
an explicit PCData element equivalent to an empty Mixed element,
and I acquiesced.

> Also, why does the element need a frequency attribute? Isn't that built into
> the nature of Mixed? It's not like you can nest a Mixed content model under a
> Choice or Seq directly or anything...

It *is* "built in", which is why it can sensibly be represented by a
#FIXED attribute. That way, people can see Mixed, Seq, and Choice
as adhering to a common "frequency architecture". Just a thought,
not anything I'm fanatical about.

-- 
John Cowan	http://www.ccil.org/~cowan		cowan@ccil.org
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)