Remove subdomain from string in ruby

Question

I\'m looping over a series of URLs and want to clean them up. I have the following code:

# Parse url to remove http, path and check format
o_url = URI.parse(         


        

Answer 1

Detecting the subdomain of a URL is non-trivial to do in a general sense - it's easy if you just consider the basic ones, but once you get into international territory this becomes tricky.

Edit: Consider stuff like http://mylocalschool.k12.oh.us et al.