Question

I know that indent is important in Haskell. How can i indent this program?

qsort [] =[]
qsort (x:xs) = let bigsorted = [a| a<-xs,a>=x]
       smallsorted= [a| a<-xs,a<x]
       in qsort bigsorted ++ [x] ++ smallsorted

I am using the vim editor. Is there any way in which the program can be automatically indented?

Answer 1

Here smallsorted is not a part of the let block.

qsort [] =[]
qsort (x:xs) = let bigsorted = [a| a<-xs,a>=x]
                   smallsorted= [a| a<-xs,a<x]
                in qsort bigsorted ++ [x] ++ smallsorted