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From: Olivier Andrieu <andrieu@ijm.jussieu.fr>
To: Mike Potanin <potanin@mccme.ru>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] AST and "when"
Date: Wed, 29 Jan 2003 15:33:44 +0100	[thread overview]
Message-ID: <15927.58952.223959.906400@akasha.ijm.jussieu.fr> (raw)
In-Reply-To: <Pine.LNX.4.44.0301291416260.17617-100000@mccme.ru>

 Mike Potanin [Wednesday 29 January 2003] :
 > Can CamlP4 make "when" in pattern?
 > 
 > # <:expr< let p x = match x with a when a<0 -> 1 | b -> b in p z >>;;
 >                                    ^^^^
 > While expanding quotation "expr":
 > Parse error: '->' expected after [ipatt] (in [expression])

That should be :
<:expr< let p x = match x with [ a when a<0 -> 1 | b -> b ] in p z >>

AST quotations use the revised syntax.

-- 
   Olivier
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  reply	other threads:[~2003-01-29 14:33 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-01-29 11:20 Mike Potanin
2003-01-29 14:33 ` Olivier Andrieu [this message]
2003-01-29 15:33   ` Mike Potanin
2003-01-29 15:43     ` Olivier Andrieu
2003-01-29 16:51       ` Mike Potanin

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