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Re: W3C URN scheme 'root' doesn't exist?

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Tue, 24 Jun 2014 09:10:38 +1000
Message-ID: <CAHp8n2nPaKu6q-fs69PAT+x5i8BrbsZBRTfdQt8q=SZGOFJpew@mail.gmail.com>
To: Dave Singer <singer@apple.com>
Cc: "Henry S. Thompson" <ht@inf.ed.ac.uk>, Robin Berjon <robin@w3.org>, TAG List <www-tag@w3.org>
We would need to be consistent for all constants defined in the spec in
defining such a referencing scheme. Also, it has no impact on the normative
implementations of UAs. I would therefore suggest to add a sentence like
this to an introductory section with an explanation of how to find the URLs
for all defined constants, maybe with a kind value add an example.

Best Regards,
Silvia.
On 24 Jun 2014 07:21, "David Singer" <singer@apple.com> wrote:

> I would actually prefer that ‘the w3c’ simply decide, I think.  Ideally
> there is a sentence somewhere saying roughly
>
> “The URI to identify an HTML[5] track ‘kind’ value, when used in other
> contexts, is http://…”
>
> As I say, DASH uses a Scheme (think, namespace) + Value pair.
>
> On Jun 23, 2014, at 12:08 , Robin Berjon <robin@w3.org> wrote:
>
> > On 23/06/2014 19:09 , David Singer wrote:
> >> On Jun 23, 2014, at 10:06 , Henry S. Thompson <ht@inf.ed.ac.uk>
> >> wrote:
> >>> David Singer writes:
> >>>> Since we want permanent labels, I fear that tying them to a
> >>>> version of the spec and its anchors and/or sections, and
> >>>> location, might be fragile.  And, as Robin points out, we don’t
> >>>> need choice.
> >>>
> >>> The whole point of W3C's usage of undated URIs is so that the
> >>> location _doesn't_ change.  As long as there is a W3C,
> >>> http://www.w3.org/TR/html5/#attr-trace-kind-subtitles will
> >>> resolve. That's as good a promise as you're going to get
> >>> (persistence as commonly understood is a service-level guarantee,
> >>> _not_ a property of names!).
> >>
> >> and when HTML5 moves to HTML6 or 7?  Is the name really specific to
> >> this version of HTML?
> >
> > That's why I suggested using /html/ instead of /html5/ if you want
> something that updates with versions. If you want something that's
> guaranteed to be absolutely stable forever, use the dated version as Henry
> suggests (or a namespace document).
> >
> >> what if some editor decides to change the name of the anchor
> >> (consistently in the document), so now it’s
> >>
> >> http://www.w3.org/TR/html5/#attribute-trace-kind-subtitles
> >>
> >> is there really a guarantee of stability for anchor names?
> >
> > That's undocumented, so if you need it to resolve (I thought you just
> needed names) then you shouldn't rely on it — we've broken these several
> times before. In practice we probably won't break this for /html5/; we will
> almost certainly break them in some future version.
> >
> > --
> > Robin Berjon - http://berjon.com/ - @robinberjon
>
> David Singer
> Manager, Software Standards, Apple Inc.
>
>
Received on Monday, 23 June 2014 23:11:05 UTC

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