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From: Stephane Glondu <Stephane.Glondu@crans.org>
To: Jonathan Roewen <jonathan.roewen@gmail.com>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Syntax errors with match and interface files
Date: Thu, 21 Jul 2005 17:26:24 -0700	[thread overview]
Message-ID: <42E03D30.5000406@crans.org> (raw)
In-Reply-To: <ad8cfe7e05072115424fc8d1eb@mail.gmail.com>

Hi,

Jonathan Roewen wrote:
> I'm getting a curious syntax error:
>
> [...]
>
> try
> let put c = putch c; Queue.add c buffer in
> match char_code with
> | Key.kEnter -> put '\n'
> | Key.kBksp -> put '\b'
> | ch -> put (Key.to_char ch)
> with Key.Not_printable -> ()

You cannot use defined variables as patterns (this is a common mistake).
Variables appearing in a pattern are always bound to (parts) of the
matched value. Something close to what you want would be :

try
let put c = putch c; Queue.add c buffer in
match char_code with
| ch when ch = Key.kEnter -> put '\n'
| ch when ch = Key.kBksp -> put '\b'
| ch -> put (Key.to_char ch)
with Key.Not_printable -> ()


Stephane Glondu.


  reply	other threads:[~2005-07-22  0:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-07-21 22:42 Jonathan Roewen
2005-07-22  0:26 ` Stephane Glondu [this message]
2005-07-22  5:47 ` skaller

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