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Re: CSS selectors and xml:id

From: Ian Hickson <ian@hixie.ch>
Date: Sun, 8 May 2005 18:30:41 +0000 (UTC)
To: Bjoern Hoehrmann <derhoermi@gmx.net>
Cc: Chris Lilley <chris@w3.org>, www-style@w3.org, public-xml-core-wg@w3.org
Message-ID: <Pine.LNX.4.61.0505081825540.20097@dhalsim.dreamhost.com>

On Sun, 8 May 2005, Bjoern Hoehrmann wrote:
> The data:text/css,test{background:red}test#test{background:lime} is a 
> URI reference to the "test{background:lime}" fragment of the style 
> sheet. I sure hope there is no WHATWG proposal that changes that as that 
> would be incompatible with a broad range of URI and RFC 2397 
> implementations.

Um, data: URIs have no fragment identifiers. Why would "#" have any 
special meaning in data: URIs? (Having said that, data: URIs maybe 
_should_ have fragment identifiers, but that's another story.)

> Well, they don't really help demonstrate interoperable implementation of 
> xml:id in CSS implementations; even if all tests were correct, they have 
> too poor coverage to serve as argument for requiring xml:id support in 
> CSS 2.1. Some of the tests might of course be useful for other purposes.

Sure. In fact, the entire concept of "requiring xml:id support in CSS" is 
meaningless to me. UAs will support a technology or not, there's no point 
in a technology saying you must also support another technology, unless 
that technology is a pre-requisite for implementing the former.

xml:id is completely tangential to CSS.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
Received on Sunday, 8 May 2005 18:30:54 UTC

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