W3C home > Mailing lists > Public > www-style@w3.org > April 2005

Re: [CSS3] xml namespace

From: Ian Hickson <ian@hixie.ch>
Date: Tue, 26 Apr 2005 17:12:41 +0000 (UTC)
To: "Henry S. Thompson" <ht@inf.ed.ac.uk>
Cc: www-style@w3.org
Message-ID: <Pine.LNX.4.61.0504261705400.4611@dhalsim.dreamhost.com>

On Tue, 26 Apr 2005, Henry S. Thompson wrote:
>>>> What's the use case? [for binding 'xml' to the XML namespace 
>>>> automatically]
>>> I have no idea
>> I am very reluctant for us to add features without good use cases, 
>> especially when they make things more complicated.
> I hear you, but you are operating in a constrained environment here
> --- Insofar as you're adding namespace support to CSS3, you really
> ought to do so in a way that respects the Namespace REC itself as
> closely as possible.

Namespaces in CSS aren't just limited to applying to namespaces in XML 
(The CSS model in general applies to more than XML, it applies to any tree 

> It simply confuses users if you take almost-all-but-not-quite of what 
> that REC says, and it says that 'xml' is pre-bound exclusively and 
> irrevocably to 'http://www.w3.org/XML/1998/namespace' and _vice versa_.

I would argue that most users don't know that 'xml' is bound to anything 
and that most users will never use it.

> I don't see how it makes things more complicated for _users_, and it's 
> trivial for implementors.

Many things are trivial. Together they add up to a QA nightmare of 
exceptions on exceptions.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Tuesday, 26 April 2005 17:13:10 UTC

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