- From: Lachlan Hunt <lachlan.hunt@lachy.id.au>
- Date: Sun, 27 Sep 2009 09:14:38 +0200
- To: Boris Zbarsky <bzbarsky@MIT.EDU>
- Cc: public-webapps <public-webapps@w3.org>
Boris Zbarsky wrote:
> On 9/26/09 4:36 PM, Lachlan Hunt wrote:
>> A scoped selector string is a string that begins with an exclamation
>> point followed by a the remainder of the selector.
>
> This assumes that '!' will never be allowed at the beginning of a CSS
> selector, right?
It does, but the workaround would be to insert an extra space at the
beginning.
I'd be willing to pick an alternative character to avoid any possible
clash. Perhaps a comma instead, like ",div div", which can never be
used at the beginning of a conforming group of selectors.
I'm also considering adjusting the idea it so that it will work when the
string simply begins with any combinator ('+', '~', or '>'), but we
still need something to use in place of the descendant combinator as the
space won't have the desired effect.
> Have you run this by the CSS working group?
Not yet, but will do so after I find out from this group if the
technique is viable.
>> e.g. The selector ">em, >strong" supported by JS libraries can simply be
>> prefixed with a "!", like "!>em, >strong" and the implementation will be
>> able to process it to become ":scope>em, :scope>strong". Of course, it
>> will also work with the other combinators.
>
> That processing still needs to be defined, right?
Yes. It would be useful to get feedback from implementers about how I
should define this.
--
Lachlan Hunt - Opera Software
http://lachy.id.au/
http://www.opera.com/
Received on Sunday, 27 September 2009 07:15:22 UTC