permalink generator

Hi everybody

I'm looking for a good permalink generator similar to this one
http://cubiq.org/the-perfect-php-clean-url-generator (but this is PHP)

I found this gem that looks like is doing what i need ,
http://rubygems.org/gems/friendly_id
but if you have better suggestion or comments just let me know

in my case I will try to use
http://norman.github.com/friendly_id/file.Guide.html

with :use_slug => true, :approximate_ascii => true
options

thanks Simone

+1 friendly_id

You can see the gems "most used" in http://ruby-toolbox.com/

Regards,
Juan Jose Vidal