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[Caml-list] infix precedence
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Date: -- (:)
From: Remi VANICAT <vanicat@l...>
Subject: Re: [Caml-list] infix precedence
dengping zhu <zhudp@cs.bu.edu> writes:

> Hi, all, I have a question about the precedence of infix in ocaml.
> I define a few infixes as follow:
>
> let (^^) x y = ...
> let (^+) x y = ...
> let (^<) x y = ...
>
> Now how can I define the precedence of them?  At first, I want to use
> brackets to solve it, but later I find out it is almost impossible because
> there are a lot of recursive functions and combination of these infixes. 
>
> Can you give me any idea?

yes, the precedence of an infix in ocaml is driven by its first letter,
so :

let (^^) x y = ...
let (+^) x y = ...
let (<^) x y = ...

will make ^^ have the same precedence than ^,  +^ have the same
precedence than + and so one.

otherwise, camlp4 is the only solution.
-- 
Rémi Vanicat
vanicat@labri.u-bordeaux.fr
http://dept-info.labri.u-bordeaux.fr/~vanicat
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