[uf-discuss] Plazes & Microformats

[Ryan King]

On Apr 19, 2006, at 1:44 PM, David Janes -- BlogMatrix wrote:
> Scott Reynen wrote:
>> On Apr 19, 2006, at 2:23 PM, Ryan King wrote:
>>> That's right. The reason you can't collapse a 'vcard' class name  
>>> and its 'fn' class name is that it makes putting a 'vcard' class  
>>> name inside another one becomes ambiguous.
>> I've seen this explanation a few times, and I've never personally  
>> found the separation of vcard and fn to be a problem, but I don't  
>> understand the explanation.   Couldn't the spec prevent such  
>> ambiguity simply by stating that vcard and fn in the same node  
>> should be treated by parsers as an fn node within the vcard node.   
>> More generally, why doesn't nearest-in-parent [1] start with the  
>> current node rather than the parent node?
>> [1] http://microformats.org/wiki/algorithm-nearest-in-parent
>
> This is great place to continue this debate. The issue (as I  
> understand it) is that this optimization doesn't allow nested vcards:
>
> <span class="vcard fn">[SPAM-DATA]</span>

This would still be a problem if it were nested inside another hcard.  
(remember, @class is an order-insignificant list.)

-ryan

> The reason, as I see it, is that because you've asserted "fn",  
> [SPAN-DATA] can pretty well only be a FN because otherwise you're  
> asserting something that isn't true logically.
>
> Thus, in terms of this particular optimization, there is no  
> particular need for worrying about nested vcards since it can't  
> happen from a logical point of view.
>
> Regards, etc...
> David
>
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--
Ryan King
ryan at technorati.com