Safe Haskell | None |
---|---|

Language | Haskell2010 |

- io :: MonadBase IO m => IO a -> m a
- fst3 :: (a, b, c) -> a
- snd3 :: (a, b, c) -> b
- trd3 :: (a, b, c) -> c
- class SemiNum absolute relative | absolute -> relative where
- singleton :: a -> [a]
- list :: b -> (a -> [a] -> b) -> [a] -> b
- nubSet :: Ord a => [a] -> [a]
- mapAdjust' :: Ord k => (a -> a) -> k -> Map k a -> Map k a
- mapFromFoldable :: (Foldable t, Ord k) => t (k, a) -> Map k a
- groupBy' :: (a -> a -> Bool) -> [a] -> [[a]]
- chain :: (a -> a -> Bool) -> [a] -> ([a], [a])
- commonPrefix :: Eq a => [[a]] -> [a]
- findPL :: (a -> Bool) -> [a] -> Maybe (PointedList a)
- swapFocus :: (PointedList a -> PointedList a) -> PointedList a -> PointedList a
- dummyPut :: a -> Put
- dummyGet :: Default a => Get a
- makeLensesWithSuffix :: [Char] -> Name -> Q [Dec]

# Documentation

class SemiNum absolute relative | absolute -> relative where Source

mapAdjust' :: Ord k => (a -> a) -> k -> Map k a -> Map k a Source

As Map.adjust, but the combining function is applied strictly.

mapFromFoldable :: (Foldable t, Ord k) => t (k, a) -> Map k a Source

Generalisation of `fromList`

to arbitrary foldables.

groupBy' :: (a -> a -> Bool) -> [a] -> [[a]] Source

Alternative to groupBy.

groupBy' (\a b -> abs (a - b) <= 1) [1,2,3] = [[1,2,3]]

whereas

groupBy (\a b -> abs (a - b) <= 1) [1,2,3] = [[1,2],[3]]

TODO: Check in ghc 6.12 release if groupBy == groupBy'.

commonPrefix :: Eq a => [[a]] -> [a] Source

Return the longest common prefix of a set of lists.

P(xs) === all (isPrefixOf (commonPrefix xs)) xs length s > length (commonPrefix xs) --> not (all (isPrefixOf s) xs)

findPL :: (a -> Bool) -> [a] -> Maybe (PointedList a) Source

Finds the first element satisfying the predicate, and returns a zipper pointing at it.

swapFocus :: (PointedList a -> PointedList a) -> PointedList a -> PointedList a Source

Given a function which moves the focus from index A to index B, return a function which swaps the elements at indexes A and B and then moves the focus. See Yi.Editor.swapWinWithFirstE for an example.