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Re: SD5 - Namespaces

From: Peter Murray-Rust <Peter@ursus.demon.co.uk>
Date: Wed, 21 May 1997 08:58:30 GMT
Message-Id: <6977@ursus.demon.co.uk>
To: w3c-sgml-wg@w3.org
In message <libSDtMail.9705201713.542.altheim@mehitabel> altheim writes:
> > > It isn't essential to have the ':', but it's much less elegant without it.
> > 
> > You can have it.  You have to declare it. XML as with SGML doesn't 
    ^^^^^^^^^^^^^^^   ^^^^^^^???^^^^^^^^^^^^
I don't think I *can* have it unless the ERB says so (productions [3]-[6]).
How would I declare it?

> > have to enforce it.  It is a neat idea.
> 
> I can't remember who mentioned it initially, but I kinda prefer two
> colons "::" to one ":", since it mirrors FPIs' namespace delimiter.

I'm happy to have two (C++-like).  James Clark rightly pointed out
that my SGML was simplistic, but it can still be done - and
the result is prettier:

<!DOCTYPE CML [
<!ENTITY % fq "CML::">
<!ENTITY % mol "%fq;MOL">
<!ENTITY % atom "%fq;ATOM">
<!ELEMENT CML (%mol;)*>
<!ELEMENT %mol; (%atom;)*>
<!ELEMENT %atom; (#PCDATA)>
]>
<CML>
<CML::MOL>
...
</CML::MOL>
</CML>


> Also, it's more unique (and hence explicit) than a single colon.
> Either way, agreed: a neat idea.
> 
> Murray
> 
	P.

-- 
Peter Murray-Rust, domestic net connection
Virtual School of Molecular Sciences
http://www.vsms.nottingham.ac.uk/
Received on Wednesday, 21 May 1997 04:12:32 UTC

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