gotta learn regexp now it seems to be very usefull

Great! :)

A very high quality Kata overall with a clear, well thought-through Description which addresses ordinary and edge cases alike and a very rigorous set of test cases that achieves full code coverage through testing ordinary, edge and random cases, keep up the good work :D

or Gordon Gekko!.. or Anton Kreil if you know who that is haha

Solving this kata feels like being Bobby Axelrod! :-)

Just want to say love the theme, more trading kata please!

sorry for that

This should be labelled as "Suggestion".

Good stuff!
Just a couple of ideas if you are interested:

• for more complex Kata have baths with different shaped,sized edges eg: "/" instead of "|".
• make sentence about edges not being included stand out more in details.

:)

joga bonito