I didn't want anyone to cheat and have the method just return what the solution's tests look for. Probably unncessary, but I completed a 2 kyu problem with that method once, and I didn't want anyone circumventing my kata with that. I see you have a working solution now. Do you know what the issue was?

Maybe, but it does it in four tests instead of one. Doing it all with one test was the point of this exercise.

http://xkcd.com/936/

That's a good idea. I thought I was being pretty blunt by writing everything but the regex for the user, but I still see multiple solutions that use several regex statements strung together and one that doesn't even use regex at all! I'll look into updating the kata this evening.

Considering this kata is in the regex section, is completing this kata without using regex really the best solution possible? :P