Ruby regex: replace double slashes in URL

Question

I want to replace all multiple slashes in URL, apart from those in protocol definition ('http[s]://', 'ftp://' and etc). How do I do this?

This code replaces without any exceptions:

url.gsub(/\/\/+/, '/')

Answer 1

You just need to exclude any match which is preceeded by :

url.gsub(/([^:])\/\//, '\1/')

Answer 2

I tried using URI:

require "uri"
url = "http://host.com//foo//bar"
components = URI.split(url)
components[-4].gsub!(/\/+/, "/")
fixed_url = [components[0], "://", components[2], components[-4]].join

But that seemed hardly better than using a regex.