Bug #9974
Updated by nobu (Nobuyoshi Nakada) almost 10 years ago
~~~
$ ruby -v
ruby 2.2.0dev (2014-06-23 trunk 46517) [x86_64-darwin13]
$ ruby -ruri -e "puts URI.parse('http://test_example')"
http://test_example
~~~
Compare to Ruby 2.1.2:
~~~
$ ruby -v
ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]
$ ruby -ruri -e "puts URI.parse('http://test_example')"
/Users/gabriel/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/uri/generic.rb:214:in `initialize': the scheme http does not accept registry part: test_example (or bad hostname?) (URI::InvalidURIError)
from /Users/gabriel/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/uri/http.rb:84:in `initialize'
from /Users/gabriel/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/uri/common.rb:214:in `new'
from /Users/gabriel/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/uri/common.rb:214:in `parse'
from /Users/gabriel/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/uri/common.rb:747:in `parse'
from -e:1:in `<main>'
~~~
This appears to be a regression as hostnames cannot legally contain underscores: http://en.wikipedia.org/wiki/Hostname#Restrictions%5Fon%5Fvalid%5Fhost%5Fnames