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/
