Safe Haskell | None |
---|---|
Language | Haskell2010 |
Basic types useful everywhere we play with buffers.
Documentation
Direction of movement inside a buffer
reverseDir :: Direction -> Direction Source #
mayReverse :: Direction -> [a] -> [a] Source #
reverse if Backward
directionElim :: Direction -> a -> a -> a Source #
A mark in a buffer
Reference to a buffer.
A point in a buffer
Size of a buffer region