From: Paul Snively <psnively@mac.com>
To: virgile.prevosto@m4x.org
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Question re: camlp4 parser
Date: Wed, 27 Jul 2005 18:27:11 -0700 [thread overview]
Message-ID: <5A709F2F-1728-4904-BAC2-C2E9CC5A3AA9@mac.com> (raw)
In-Reply-To: <2787337705072700045a275ce6@mail.gmail.com>
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On Jul 27, 2005, at 12:04 AM, Virgile Prevosto wrote:
> As any other pattern, stream patterns can be refined with a 'when'
> condition:
>
> let printable s =
> let buf = Buffer.create 100 in
> let rec aux = parser
> | [< '' '..'~' as c when c <> '=' && c <> '[';
> x = (Buffer.add_char buf c; aux) >] -> x
> | [< >] -> Buffer.contents buf
> in aux s ;;
>
> should do the trick. It might not be that convenient for a more
> complex set of excluded characters, but it is possible to write a char
> -> bool test outside of the stream parser.
>
Of course: it's all becoming quite clear now. Thanks for the
excellent suggestion and your patience with my naïvete. :-)
> --
> E tutto per oggi, a la prossima volta
> Virgile
>
> _______________________________________________
> Caml-list mailing list. Subscription management:
> http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list
> Archives: http://caml.inria.fr
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Best regards,
Paul Snively
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prev parent reply other threads:[~2005-07-28 1:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-26 0:11 Paul Snively
2005-07-26 1:17 ` [Caml-list] " Stephane Glondu
2005-07-26 16:43 ` Paul Snively
2005-07-26 17:05 ` Stephane Glondu
2005-07-27 7:04 ` Virgile Prevosto
2005-07-28 1:27 ` Paul Snively [this message]
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