- From: David Woolley <forums@david-woolley.me.uk>
- Date: Mon, 30 Apr 2007 21:23:32 +0100
- To: www-html@w3.org
Lachlan Hunt wrote: > > Tina Holmboe wrote: >> >> Can you enumerate the features that /cannot/ be implemented? > > There are many, but ok. > Most of the list /can/ be implemented. I believe what Tina was asking was which features of HTML cannot be implemented because they are either theoretically impossible (self contradictory, halting problem, etc.) or because they would have performance problems, or an inordinately high implementation cost. I'm sure she knows that the majority of web sites would break if used with a user agent that fully validated against the specification. (I suspect that she was not putting a high priority on the features that are only implied by the formal SGML definition, rather than the narrative.)
Received on Monday, 30 April 2007 20:24:01 UTC