From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] parsing: old and new ways
Date: Fri, 14 Dec 2001 21:57:05 +0100 [thread overview]
Message-ID: <20011214215705.A12178@verdot.inria.fr> (raw)
In-Reply-To: <3C1A569B.3E718623@wanadoo.fr>; from philippe.esperet@wanadoo.fr on Fri, Dec 14, 2001 at 08:44:27PM +0100
Hi,
On Fri, Dec 14, 2001 at 08:44:27PM +0100, Philippe Esperet wrote:
> # Grammar.Entry.parse mirror (Stream.of_string "abcba");;
> Exception:
> Stdpp.Exc_located ((0, 5), Stream.Error "illegal begin of mirror").
>
> What am I missing?
The problem is the lexer you use. You took "Plexer.make ()" which
considers "abcba" as a token, therefore not matching the keywords
"a", "b" or "c".
To get the same result you should give the string "a b c b a" as
input...
... or use another lexer, not "Plexer.make ()", which would return
each input character as token. It should be easy. If you need help
to write it, ask me.
--
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/
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prev parent reply other threads:[~2001-12-14 20:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-14 19:44 Philippe Esperet
2001-12-14 20:57 ` Daniel de Rauglaudre [this message]
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