[uf-discuss] Plazes & Microformats

[Ryan King]

On Apr 19, 2006, at 5:00 AM, Chris Messina wrote:

> I believe that this is possible, given that a proposed optimization to
> collapse vcard and fn into one class value (class="vcard fn") was
> rejected for this very reason.

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.

To answer Pieter's question, in hcard, nested hcards are possible.  
The standard use case would be the AGENT property of VCARD [http:// 
microformats.org/wiki/hcard-examples#3.5.4_AGENT_Type_Definition].

For (a somewhat realistic) example...

<div class="vcard">

     <span class="fn">Tantek Çelik</span>

     <span class="agent vcard">
        <!-- the order is actually irrelevant here class="vcard  
agent" is synonymous -->
        <span class="fn">Ryan King</span>
     </span>

</div>

The AGENT property of vcard can be either:

1. another vcard (default)
2. text
3. URI

So, we have the same options in hcard.

-ryan