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Re: [xml-dev] which xml schema tools do it right concerning including attributes xml:lang and xml:space

From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
Date: 22 Apr 2002 15:21:46 +0100
To: "Stanley Guan" <stanley.guan@oracle.com>
Cc: "Dare Obasanjo" <dareo@microsoft.com>, <xmlschema-dev@w3.org>
Message-ID: <f5bsn5ng6f9.fsf@cogsci.ed.ac.uk>
"Stanley Guan" <stanley.guan@oracle.com> writes:

> ----- Original Message -----
> From: "Henry S. Thompson" <ht@cogsci.ed.ac.uk>
> To: "Dare Obasanjo" <dareo@microsoft.com>
> Cc: "Paul Hermans" <paul_hermans@protext.be>; <xml-dev@lists.xml.org>;
> <xmlschema-dev@w3.org>
> Sent: Friday, April 19, 2002 2:27 AM
> Subject: Re: [xml-dev] which xml schema tools do it right concerning
> including attributes xml:lang and xml:space
> 
> 
> (snip)
> >
> > XSV does the same, i.e. it only fetches one schema document per
> > imported namespace, regardless of how many <import> elements it
> > encounters.
> 
> Does this mean when you import a specific namespace, you need to
> specify the top schema document.
> 
> For example, if you try to import two schema documents in the
> same namespace, only the first import succeeds even the second
> document does contain additional type definitions or element
> declarations.
> 
> So, for the given example, people should use a proxy to contain
> both documents and provide it to the schema processor via the
> "import" schema component.  Am I right about this?

Precisely.

> The point I try to bring up with is:
>    Should the schema processor decide whether to fetch a
>    schema document based on:
>      i) namespace only, or
>     ii) schemaLocation and namespace?

We're still learning what works best.  XSV chooses (i) for <import>
and previously un-encountered namespace names, (ii) for <include>.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2002, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
		     URL: http://www.ltg.ed.ac.uk/~ht/
 [mail really from me _always_ has this .sig -- mail without it is forged spam]
Received on Monday, 22 April 2002 10:22:00 GMT

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