I wrote an Elixir library to handle non-strict URL operations, including parsing from string, serializing to string, and wildcard-matching different URL components. It’s a rather faithful port of a Ruby Gem I wrote a few months ago.

It’s called Fuzzyurl: https://github.com/gamache/fuzzyurl.ex

Docs here: http://hexdocs.pm/fuzzyurl/0.2.0/Fuzzyurl.html

Hope it’s useful!