ruby on rails - routes.rb - match file extension when multiple periods exist in filename

Question

I have created a route plus controller for doing dynamic css in ruby on rails as per the instructions here:

http://www.misuse.org/science/2006/09/26/dynamic-css-in-r

Answer 1

Use a regex to match the filename?

map.connect 'rcss/:rcssfile',
  :controller => 'rcss',
  :action => 'rcss',
  :requirements => {:rcssfile => /.+\.rcss/ }

This would match (anything).rcss - you could adjust the regex for various suffixes.