Allow '.' to be a part of identifier, not a separator of format

Hi,

I have a question about available characters for url in Rails3.
Is it possible to include '.' as identifier of resources?

Background

In your ./config/routes.rb, you could do something like:

  ...
  map.connect '/movies/:title',
    :controller=>'movies',
    :action=>'by_title',
    :requirements=>{:title=>/[-_+.a-z0-9]+/i}

  ...

See Regular Expressions and Parameters on
http://api.rubyonrails.org/classes/ActionController/Routing.html for
more info.

Jeff