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Re: sXBL: Extensibility and Versioning

From: Ian Hickson <ian@hixie.ch>
Date: Sat, 23 Oct 2004 16:39:50 +0000 (UTC)
To: Bjoern Hoehrmann <derhoermi@gmx.net>
Cc: www-svg@w3.org
Message-ID: <Pine.LNX.4.61.0410231635260.26459@dhalsim.dreamhost.com>

On Fri, 22 Oct 2004, Bjoern Hoehrmann wrote:
> 
> It seems the latest sXBL Working Draft does not discuss extensibility or 
> versioning of the format. It seems reasonable to expect that the 
> specification that replaces sXBL makes changes to the language that 
> would cause sXBL fragments to behave in unexpected ways or fail in old 
> processors that expect such fragments to be sXBL fragments.

sXBL will be an exact subset of XBL2. We've been very careful about that. 
In addition, for sXBL the SVG error handling rules are used, so 
unrecognised elements cause the processor to abort. So this won't be a 
problem. (We may want to also add to sXBL a rule saying that unexpected 
attributes are in error too, in case we expect to add attributes that 
change the processing model with no new elements.)

-- 
Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Saturday, 23 October 2004 16:39:52 UTC

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