Re^3: Yet Another Rosetta Code Problem (Perl, Ruby, Python, Haskell, ...)

[eyepopslikeamosquito]

I really dont like the regex magic of the ruby solution, cant you guys think of another solution :-)

How about some inject magic?

x = s.split(//).inject([]) {|a,e| (a.last && a.last[e] ? a.last : a) <
+< e; a}