| License | GPL-2 |
|---|---|
| Maintainer | yi-devel@googlegroups.com |
| Stability | experimental |
| Portability | portable |
| Safe Haskell | None |
| Language | Haskell2010 |
| Extensions |
|
Yi.Utils
Description
Various utility functions and instances used throughout Yi. Some of the functions from the now-removed Yi.Prelude found a new home here.
- 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
- 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
- makeClassyWithSuffix :: String -> Name -> Q [Dec]
- addSuffix :: Name -> String -> [DefName]
- makeLensesWithSuffix :: String -> 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.