From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] possible camlp4 problem/bug with literal booleans in expr quotations.
Date: Thu, 9 Jan 2003 12:00:38 +0100 [thread overview]
Message-ID: <20030109120038.A14144@verdot.inria.fr> (raw)
In-Reply-To: <3E1D5A7B.6050309@wanadoo.nl>; from maas@wanadoo.nl on Thu, Jan 09, 2003 at 12:18:19PM +0100
Hi,
On Thu, Jan 09, 2003 at 12:18:19PM +0100, Maas-Maarten Zeeman wrote:
> EXTEND
> expr: LEVEL "expr1"
> [ [ "forever"; body=expr ->
> <:expr< while true do { $body$ } >> ] ];
> END;;
Not "true", but "True": in Revised syntax, which is used in quotations
of syntax trees, the constructors "True" and "False" must start with
an uppercase letter.
If you write it with a lowercase letter, the generated syntax tree
will represent the *variable* (not the *constructor*) named "true",
which does not exist in OCaml.
--
Daniel de RAUGLAUDRE
http://cristal.inria.fr/~ddr/
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prev parent reply other threads:[~2003-01-09 11:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-09 11:18 Maas-Maarten Zeeman
2003-01-09 11:00 ` Daniel de Rauglaudre [this message]
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