Re: [Caml-list] infix precedence

[Remi VANICAT <vanicat@labri.u-bordeaux.fr>]

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
-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners