ModuleListLike-4.7.8.4Haskell2010

Data.ListLike.Utils

Utilities for Data.ListLike.ListLike and friends. More functions similar to Data.List but not part of the main typeclass.

Written by John Goerzen, jgoerzen@complete.org

11 values

PackageListLike-4.7.8.4
Exports11
LanguageHaskell2010
LicenceBSD-3-Clause
SourceUtils.hs

valueand :: ListLike full Bool => full -> Bool

Returns True if all elements are True

valueor :: ListLike full Bool => full -> Bool

Returns True if any element is True

valuesum :: (Num a, ListLike full a) => full -> a

The sum of the list

valueproduct :: (Num a, ListLike full a) => full -> a

The product of the list

valuezip

:: (ListLike full item, ListLike fullb itemb, ListLike result (item, itemb))
=> full
-> fullb
-> result

Takes two lists and returns a list of corresponding pairs.

valuezipWith

:: (ListLike full item, ListLike fullb itemb, ListLike result resultitem)
=> item -> itemb -> resultitem
-> full
-> fullb
-> result

Takes two lists and combines them with a custom combining function

valueunzip

:: (ListLike full (itema, itemb), ListLike ra itema, ListLike rb itemb)
=> full
-> (ra, rb)

Converts a list of pairs into two separate lists of elements

valuesequence_ :: (Monad m, FoldableLL full (m item)) => full -> m ()

Evaluate each action, ignoring the results. Same as mapM_ id.

valuetoMonadPlus :: (MonadPlus m, ListLike full a) => full -> m (a, full)

Converts to a MonadPlus instance

valuelist :: ListLike full a => b -> (a -> full -> b) -> full -> b

List-like destructor (like Data.Maybe.maybe)

valueintercalate :: (ListLike a item, ListLike b a) => a -> b -> a

intercalate xs xss is equivalent to (concat (intersperse xs xss)). It inserts the list xs in between the lists in xss and concatenates the result.