[Haskell-cafe] Function application layout
daniel.is.fischer at googlemail.com
Thu May 26 18:10:35 CEST 2011
On Thursday 26 May 2011 17:22:10, Jonas Almström Duregård wrote:
> Unfortunately it does not play nice with $.
> Also I'm not sure this can be used for defining trees or nested function
> application since a nesting of the operator inevitably require
It can't be nested, like ($) can't be nested. You could however add
infixl 1 ??
infixl 2 ???
to achieve the possibility of nesting (but you have to be careful with low-
precedence operators if you actually want to use that).
As far as I'm concerned, a left-associative version of ($) would sometimes
be nice (on the other hand, right-associativity of ($) is sometimes also
nice), but usually, I don't find parentheses too obnoxious.
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