Has been reraised above with more clarity

Yes, changed everything to radii.

The description doesn't mention that the user should validate anything.

Fixed

Nope, radiuses is not radii.

Fixed

Let's work together in making it more regular then :). Radiuses is the new radii.

I didn't write the Haskell, but I've fixed it.

Bump! It has been four months now.

Issue still isn't fixed...

jnicol's solution fails to preserve the trailing white spaces.

I'm not sure who made the Python and Haskell translations from my original JS solution

Whenever you see my name on the contributer's list, there's a high chance that I translated the kata to Haskell. However, none can address this issue at this point. Katas with 500+ solutions can only get edited by moderators. If a moderator sees this: @sru's solution is fine and can safely replace the one provided in the test cases.

Sorry for the inconvenience :/.

This is for the Haskell kata, right? I'm not sure who made the Python and Haskell translations from my original JS solution, but it wasn't me, and since I don't know Haskell I can't address this issue :(

Yes ,the kata is broken. jnicol's solution fails to preserve the trailing white spaces. Which is what I guess is used in the random testing.

An easy counter example : "a ". (" " works btw)

I'll give you that, I was still learning Haskell when I wrote this.

Actually…. (The translator's solution always gets credited to the original author)

Oh, the irony. :) I'll give you that, I was still learning Haskell when I wrote this.