Does there exist a generalized version of the `words' function i. e. one that breaks an arbitrary list into parts by an arbitrary predicate? splitAt is not what I need. I had to write my own: -- A version of words, but works with any lists on any predicate. parts pred s = case dropWhile pred s of [] -> [] s' -> w : parts pred s'' where (w, s'') = break pred s' (just by parameterizing `words' found in Data.List with a predicate passed as a parameter). In case such a function already exists, what is its name? In the opposite case, can such a function be added to the standard library? (or why didn't it exist?) Dimitry Golubovsky Middletown, CT