From: Jean-Christophe Filliatre <filliatr@lri.fr>
To: Mehdi <mehdid@gmail.com>
Cc: jeremy <flashvan@gmail.com>, caml-list <caml-list@yquem.inria.fr>
Subject: Re: [Caml-list] How can I have a string matched my custom type?
Date: Mon, 28 May 2007 20:07:11 +0200 [thread overview]
Message-ID: <18011.6735.85307.153103@serveur9-10.lri.fr> (raw)
In-Reply-To: <765e2be00705281054h4f77a584y1f12f15c7bd0d284@mail.gmail.com>
Mehdi writes:
> There a little problem when you try to compute
>
> > let e = parse "1*3-2";;
>
>
> I get :
>
> > val e : expr = Times (Value "1", Value "3")
This is a Genlex limitation. "-2" is recognized as an integer
constant. Thus you need to add extra space:
======================================================================
# parse "1*3 - 2";;
- : expr = Minus (Times (Value "1", Value "3"), Value "2")
======================================================================
> I also didn't understand why there is this in "term" :
>
> > | _ -> f
> > | _ -> failwith "syntax error"
Simply because I wrote this code in a rush :-) Forget about the last
line.
--
Jean-Christophe
next prev parent reply other threads:[~2007-05-28 18:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-28 15:46 jeremy
2007-05-28 16:14 ` [Caml-list] " Jean-Christophe Filliatre
2007-05-28 17:54 ` Mehdi
2007-05-28 18:07 ` Jean-Christophe Filliatre [this message]
2007-05-28 18:23 ` Mehdi
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