[Mediawiki-l] Propagating notes on Category pages to subcategories

[Jim Hu]

I'd like to have a parser extension that would copy specific text from  
a category page to all of its subcategories.  I'm imagining that it  
would be something where there would be a tag to mark text to  
propagate below to all subcategories, sub-subcategories etc, and  
another set of tags that would be like an RSS aggregator for all the  
text from ancestor categories.

Does such a thing exist?  Any thoughts on how bad performance would be?

Thanks!

Jim
=====================================
Jim Hu
Associate Professor
Dept. of Biochemistry and Biophysics
2128 TAMU
Texas A&M Univ.
College Station, TX 77843-2128
979-862-4054