Re: [Haskell-cafe] Why is $ right associative instead of leftassociative?

5 Feb 2006

      Tomasz Zielonka wrote:
...
The only problem I see right now is related to change locality. If I
have a chain like this:
f x y .
   g x $
   z
and I want to add some transformation between g and z I have to
change one line and insert another
f x y .
   g x .
   h x y $
   z
With right-associative $ it would be only one line-add. Probably not a
very strong argument.
How about:

      f x y
      . g x
      $ z

then you only need to add the line

      . h x y

This is similar to how people often format lists:

     a =
          [ first
          , second
          , third
          ]

Regards, Brian.

Re: [Haskell-cafe] Why is $ right associative instead of leftassociative?

Brian Hulley