Rob Church wrote:
It would, I think, be very possible to write some sort
of tool which
can quickly extract this information from page text, and then present
some sort of editor - saving it would require replacing the
information back into the page text, and saving this again, which
would conveniently handle the update, plus logging and versioning in
one go.
Rob Church
There's
http://commons.wikimedia.org/wiki/MediaWiki:HotCat.js for
categories.