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Re: [xml-dev] namespaces redux (was: Re: [xml-dev] [XML Schema]Here's how to empower instance document authors to create their own root element)

On 16 October 2012 15:54, Liam R E Quin <liam@w3.org> wrote:
> On Tue, 2012-10-16 at 11:47 +0100, Andrew Welch wrote:
>> xmlns:c="config"
> This is still, of course, a URI, but now it is a relative URL.
> Please don't do this.
> Ah, for the reasons that John has said.
> It looks nice but it does *not* have the meaning you seem to think it
> does. Hmm, I should add that to the course notes I'm writing.
> One problem is that you can create non-portable documents - software is
> free (unfortunately) to resolve "config" as a relative URI reference
> using the base URI of the containing resource, so that the actual
> namespace URI in the document would vary depending on the document's
> location.

....which is clearly madness, surely, right?

> Another is software that will go use that relative URI to fetch a schema
> of some sort.

I also really wouldnt want that happening either...

> I was disappointed, as I'd always hoped we (the XMLers) would define a
> catalog of some sort that could be located at a namespace URI and used
> to locate schemas, DTDs, stylesheets, documentation, entity definitions,
> code fragments and so forth. RDDL-style. But the consensus was that such
> things are neither forbidden nor encouraged, and relative URIs should
> not be used as a namespace name.

why wedge it in with namespaces?  Why not some other xml: prefixed attribute?

Andrew Welch

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