- From: Charles McCathieNevile <charlesn@srl.rmit.EDU.AU>
- Date: Wed, 18 Nov 1998 12:34:18 +1100 (EST)
- To: Nir Dagan <nir@nirdagan.com>
- cc: WAI GL <w3c-wai-gl@w3.org>
Hmm. So when are you going to send us some of these poems? *smile* To the point: CLASS and REL are similar beasties. Both allow extension of semantics. REL has some values which are suggested by W3C (eg stylesheet) and probably lots which are introduced by people building their intranets out of HTML and fancy parsers. But where a REL value is widely accepted, this is a Good Thing (TM), as it allows for reproduceable functions to be added to HTML. If there were some (more or less) standard CLASS values then we could reuse stylesheets as well. But as Nir says, if we want to reserve values we need to give a long lead time. (Much as there is a long lead time before the reserved terms LONGDESC, OBJECT, etc are actually really useful.) In the case we are discussing, we are looking for a way to deal with clusters of links. the MAP element was designed to do so. In the transition from HTML 3.2 to HTML 4.0 it was made much better at it. In the next transition there may be a few more improvements (allow AREA and block-level content, make it block level?). At that point the WAI may wish to suggest that several CLASS values be 'reserved'. To allow browsers to set them as display:none would be more than I was happy with - I would prefer for defaults to simply shift them to the end of a page. But given the amount of lead time before any of this is likely to actually be implemented, the whole prospect does not concern me unduly. It is important that IF we look at this path then there is an onus on EO to ensure that this is well known, Internationally. An alternative would be to allow an attribute NAV to the element MAP. But it does seem redundant - MAPs made of AREAs don't have any initial rendering (although good things like lynx offer the possibility) and MAPs are collections of links - I find it hard to think of an example where this is not a navigation system. Not that that means it doesn't happen. So although in principle I think that we can reserve a CLASS value or two, in practice I do not see that it is necessary. Charles McCathieNevile
Received on Tuesday, 17 November 1998 20:38:08 UTC