From: Hunt Jon <jona.hunt777@...>
Date: 2009-09-28T12:48:28+09:00
Subject: Getting a valid URL from a command line

Hi - I'm working on the script below, which attempts at getting
a user input and validate that the input is formed like a URL.
And if the user fails to input, it should ask again.

require 'uri'
puts "Type a URL"
begin
  url = gets.chomp
  URI.parse(url) # should raise if a variable 'url' is malformed.
rescue URI::InvalidURIError
  puts "That is not a valid URL. Try again."
  retry
end

I expect that if I run "URI.parse()" it should raise an error, but
it doesn't happen.

Can anybody help me on this one?

Jon