Note: Was tired when I wrote this. Really, really tired.

Is there a bug in the Ruby version?

Testing word dabble
Should work for this word -  Expected: "Delta Echo Lima Tango Alpha  Alpha Lima Papa Hotel Alpha  Bravo Romeo Alpha Victor Oscar  Bravo Romeo Alpha Victor Oscar  Lima India Mike Alpha  Echo Charlie Hotel Oscar"

That's not dabble, that's delta alpha bravo bravo lima echo (dabble in nato alphabet in nato alphabet)