> s.chars.chunk { |c| c }.map { |c, cs| xs.join }
=> ["Z", "BBB", "C", "ZZ"]

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In reply to Re: Yet Another Rosetta Code Problem (Perl, Ruby, Python, Haskell, ...) by Anonymous Monk
in thread Yet Another Rosetta Code Problem (Perl, Ruby, Python, Haskell, ...) by eyepopslikeamosquito

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