Notes On Indentations

Like all ML Language Family, Hamler is indentation sensitive. Any declaration in the same block should have the same level of indentation. In the case of a declaration spans more than one line, the other lines have to be intended past the first line.

flip x f = f
x                   -- NOT OKAY, Hamler will see x as a seperate declaration
flip f x = f
    x               -- OKAY, but not recommended

Let and Where Bindings

Keywords such as Let and Where introduces a new block, where further indentation is needed.

distance x y = sqrt z
  where
    z = x' + y'
    x' = x * x
    y' = y * y