I have set up a highly experimental (read: pre-pre-alpha) tool on the
toolserver to search for combinations of key/value pairs in templates.
Like TemplateTiger, but for the live site (one day...)
URL:
http://toolserver.org/~magnus/knights_template.php
(as in "Knights Templar", sorry, couldn't resist)
What does it do (or should do):
Find actors on Wikipedia that have a book by publisher McFarland cited
as source? No problem:
http://tinyurl.com/chadva
(will take a few seconds)
All templates used on [[Roy Scheider]], with key/value pairs:
http://tinyurl.com/dkpbh7
Things that need fixing (like, everything):
* Slooow
* Only en.wikipedia
* Only 16K pages indexed at the moment (some Recent Changes snapshots)
* Only templates used directly in the article are indexed
* Needs continuous update (can run on cron, but disabled because text
retrieval and DB storage too slow to keep up with RC)
* Needs better query interface
* Might cause database size problems
All in all, it would be much better directly integrated into MediaWiki
(no need for text retrieval/parsing, no bulk updates). But I've been
saying that for years, at least this is a first attempt.
Cheers,
Magnus