Write a script and mod_rewrite rules to find old-school issue URLs and redirect to the appropriate views-based URLs

While converting all the issue queues to views and exposed filters, I tried to preserve some links as much as possible. However, certain things are completely impossible to recreate natively in views (partly due to how insanely it used to work). At the Cambridge d.o upgrade sprint we discussed trying to write some mod_rewrite rules that detect old-school project issue URLs, redirect to a script that tries to parse the args and redirect back to the appropriate views-based URL that now implements the desired listing. Using the old URLs currently gives form validation errors, which could be the cause of a lot of the problems people are reporting at #377546: "illegal choice" validation errors on many pages, for example:

http://drupal.org/project/issues?projects=11095&states=1,16,8,13,14,15,2...