System.IO.Streams.Combinators
inputFoldM
outputFoldM
fold
foldM
fold_
foldM_
any
all
maximum
minimum
unfoldM
map
mapM
mapM_
mapMaybe
contramap
contramapM
contramapM_
contramapMaybe
filter
filterM
filterOutput
filterOutputM
give
take
drop
ignore
zip
zipWith
zipWithM
unzip
intersperse
skipToEof
ignoreEof
atEndOfInput
atEndOfOutput