[uf-discuss] rel-tag for hierarchical categories

[Scott Reynen]

Andreas Haugstrup wrote:

>> Some parsers will still treat that as a single tag, but others  
>> will treat it as a hierarchy, and even in those systems treating  
>> it as a single tag, I think "software.httpsubscription" suggests a  
>> hierarchy to many humans.
>
> It won't be cool for those people who use system that don't see the  
> hierarchy.

I'm not sure what you mean by "won't be cool."  It doesn't break any  
functionality as far as I can tell, and successfully adds  
functionality for systems that support it (e.g. Foxylicious).  People  
are already using parent.child syntax for tags [1] [2], and it seems  
to be working just fine.

> Why not use two links:
>
> <a href="http://members.optusnet.com.au/benjamincarlyle/benjamin/ 
> blog/software">software</a>/<a href="http://members.optusnet.com.au/ 
> benjamincarlyle/benjamin/blog/software/ 
> httpsubscription">httpsubscription</a>

You could, but that doesn't give leave any indication that  
httpsubscription is meant as a subset of software.  Not particularly  
important in this case, but "politics.green" is quite different from  
"construction.green" or "color.green".

Peace,
Scott

[1] http://technorati.com/tag/food.cooking
[2] http://del.icio.us/tag/music.pop