Ruby Golf Hamburg, 13.11.2013

To start coding on this challenge, first install all gems:

bundle install

Then, execute the test using guard:

bundle exec guard

Each time you change ruby_golf.rb, the tests are re-run and give you the state of your implementation and code metrics used for ranking.

Rules

only touch ruby_golf.rb
implement your solution within the pre-defined module methods
only non-whitespace characters within the method body are counted, no need to optimize the method definition
you can implement helper methods within the module, but be aware that they are counted towards the size of each method they're used in
stick to what stdlib gives you
DON'T use custom gems
DON'T go and annoy the organizers by being clever and exploiting their code