Posted PaceAPPCategories

[Tim Bray <Tim.Bray@xxxxxxx>]

At http://www.intertwingly.net/wiki/pie/PaceAPPCategories

Based on PaceCategoryListing2.  In an introspection document, you  
either have an href= or you don't.  If not, you contain atom:category  
elements directly.  If you do, it has to point to a Categories  
document, whose root is <app:categories> with <atom:category>  
children.  The only thing that's not obvious is that  
<app:categories>, when it's the root of a Categories doc, can have a  
@scheme attribute to provide a default, if you want a couple of  
hundred categories and not to provide the category@scheme for all of  
them.

This seems to be about the minimum I can think of that would give APP  
category listing, without trying to stretch too far or solve the  
whole problem.

 -Tim