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Date: Fri, 18 Oct 2013 16:00:28 +0400
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From: Kakadu <kakadu.hafanana@gmail.com>
To: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
Cc: Caml List <caml-list@inria.fr>
Content-Type: text/plain; charset=ISO-8859-1
Subject: Re: [Caml-list] Camlp5 error when printing expression

many thanks.

On Thu, Oct 17, 2013 at 9:33 PM, Daniel de Rauglaudre
<daniel.de_rauglaudre@inria.fr> wrote:
> Hi,
>
> On Thu, Oct 17, 2013 at 07:00:13PM +0200, Kakadu wrote:
>
>> I have reached some problems with Camlp5 grammars. I can't apply
>> grammar [1]  to source file 'let _ = REPR (1)'. It says 'cannot print
>> expr; a missing case in camlp5; please report'.
>
> I guess you used:
>   camlp5o ./pa_log.cmo test.ml
>
> If it is the case, this message happens because you specified no
> pretty printer in the command line (there is no default pretty
> printer).
>
> In your "pa_log.ml" the expression
>     Eprinter.apply pr_expr Pprintf.empty_pc e
> fails because of that.
>
> Solution: use
>   camlp5o ./pa_log.cmo pr_o.cmo test.ml
>
> --
> Daniel de Rauglaudre
> http://pauillac.inria.fr/~ddr/
>
> --
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