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Re: change proposal for issue-86, was: ISSUE-86 - atom-id-stability - Chairs Solicit Proposals

From: Ian Hickson <ian@hixie.ch>
Date: Fri, 16 Apr 2010 20:11:06 +0000 (UTC)
To: "Tab Atkins Jr." <jackalmage@gmail.com>
Cc: Sam Ruby <rubys@intertwingly.net>, Edward O'Connor <hober0@gmail.com>, Julian Reschke <julian.reschke@gmx.de>, "public-html@w3.org WG" <public-html@w3.org>
Message-ID: <Pine.LNX.4.64.1004162008200.23507@ps20323.dreamhostps.com>
On Fri, 16 Apr 2010, Tab Atkins Jr. wrote:
> 
> "
> Let id be a user-agent-defined undereferenceable yet globally unique
> valid absolute URL. The same absolute URL must be generated for each
> run of this algorithm when given the same input. Let has-alternate be
> false.
> 
> Non-normative note: This may result in a single entry producing
> different ids, if the contents of the corresponding <article> change
> often.  This may produce an undesirable user experience in Atom feed
> consumers, as the single article may exist multiple times in the feed
> as distinct entries.  It is recommended that authors ensure that one
> of the previous conditions can be met, ensuring a stable id even if
> the contents of the article change.
> "

Something like the above seems fine to me, so long as we also added an 
extra clause saying the same URL should also be generated even if the 
input changed. Otherwise we're actually making the requirement even weaker 
than what HTML5 has now, which takes us even further away from what was 
argued Atom requires.

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Friday, 16 April 2010 20:11:35 GMT

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