From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Camlp4: varargs ie a la Printf
Date: Tue, 18 Jun 2002 08:27:35 +0200 [thread overview]
Message-ID: <20020618082735.G11335@verdot.inria.fr> (raw)
In-Reply-To: <15629.62581.329369.773250@is002254.saclay.cea.fr>; from basile.starynkevitch@cea.fr on Mon, Jun 17, 2002 at 04:38:45PM +0200
Hi,
On Mon, Jun 17, 2002 at 04:38:45PM +0200, Basile STARYNKEVITCH wrote:
> Pcaml.expr: LEVEL "top"
> [ [ "trace" ; trid = UIDENT ; fmt = STRING ; args = LIST0 Pcaml.expr ; "end" ->
> let lctrid = String.lowercase trid in
> [...]
> (Printf.sprintf $str:fmt$
> (**** WHAT SHOULD BE ADDED HERE? *****)
John Malecki answered correcly (how to create an AST of a list), but
I would just add that "args = LIST0 Pcaml.expr" does not work without
separator, because if you have "a b c" on input, it does not return
the list of a, b and c, but the application of the function a to b and
c.
A solution is to call Pcaml.expr at the level just after the application,
i.e. for the normal and revised syntaxes: ".":
args = LIST0 (Pcaml.expr LEVEL ".)
--
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/
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prev parent reply other threads:[~2002-06-18 6:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-17 14:38 Basile STARYNKEVITCH
2002-06-17 14:59 ` Alain Frisch
2002-06-17 16:20 ` John Malecki
2002-06-18 6:27 ` Daniel de Rauglaudre [this message]
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