- From: David Woolley <forums@david-woolley.me.uk>
- Date: Fri, 07 Oct 2011 14:15:54 +0100
- To: Roland Steiner <rolandsteiner@google.com>
- CC: Barry van Oudtshoorn <bvanoudtshoorn@gmail.com>, www-style@w3.org
Roland Steiner wrote: > > My main question in all of this is: has anyone thought about how to > actually implement this without a) traversing the whole tree twice (once > to set selected styles, once to do inheritance), or b) do a full subtree > search every time on matching :has()? Additionally, how to handle > updating of nodes - it seems ANY node could be affected by changes > ANYWHERE in the DOM. That was essentially why this feature was rejected many years ago, and probably has been rejected several times since. The other problem is indefinite lookahead. You are more or less forced to render then backtrack, because there are some pages that never actually terminate, but grow with the addition of real time data. (My experience also, is that most things that keep being proposed and rejected, eventually get accepted!) -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work.
Received on Friday, 7 October 2011 13:16:29 UTC