URI.parse does not support IPv6 URLs

[Nicd]

Try the following:

URI.parse("http://[2607:f3f0:2:0:216:3cff:fef0:174a]/").authority

Expected result: "[2607:f3f0:2:0:216:3cff:fef0:174a]"
Actual result: "[2607"

Running Elixir 0.10.2-dev.

[josevalim]

Good catch! A pull request is appreciated. :)

[Nicd]

I'm fairly sure the problem is in the regex at uri.ex#L195, which does not take into account that IPv6 URLs have : inside them in places other than the port number. I will look into this when I get the time.

[brunoro]

The regexp used for parsing URIs comes from RFC3986 (http://tools.ietf.org/html/rfc3986#appendix-B), which already takes into account IPv6 addresses. You're right @Nicd, it comes from that other regexp used for splitting the authority.

[Nicd]

I am honored to have my server's IPv6 address appear in Elixir's source code (if this pull request goes through). ^_^