From: Remi VANICAT <vanicat@labri.u-bordeaux.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] infix precedence
Date: Tue, 28 May 2002 17:54:27 +0200 [thread overview]
Message-ID: <8766181d58.dlv@wanadoo.fr> (raw)
In-Reply-To: <Pine.SOL.4.20.0205281136470.10102-100000@csa.bu.edu> (dengping zhu's message of "Tue, 28 May 2002 11:42:27 -0400 (EDT)")
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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next prev parent reply other threads:[~2002-05-28 15:53 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-28 15:42 dengping zhu
2002-05-28 15:54 ` Remi VANICAT [this message]
2002-05-28 16:00 ` John Prevost
2002-05-28 17:19 ` dengping zhu
2002-05-28 18:07 ` John Prevost
2002-05-28 18:16 ` dengping zhu
2002-05-28 18:32 ` Daniel de Rauglaudre
2002-05-28 18:48 ` dengping zhu
2002-05-28 22:44 ` Daniel de Rauglaudre
2002-05-29 2:48 ` dengping zhu
2002-05-29 8:42 ` Daniel de Rauglaudre
2002-06-21 17:54 ` dengping zhu
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