From: Christophe Raffalli <Christophe.Raffalli@univ-savoie.fr>
To: Tom Ridge <tom.j.ridge+list@googlemail.com>
Cc: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] Str, regular expressions, longest match
Date: Tue, 30 Sep 2014 14:47:00 +0200 [thread overview]
Message-ID: <20140930124659.GC23852@d45.lama> (raw)
In-Reply-To: <CABooLwNvJ_4frafqjjV0zpoDbduAV5MmVjdrNL=o3ibgMEVoLg@mail.gmail.com>
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On 14-09-29 21:04:17, Tom Ridge wrote:
> Dear All,
> I am trying to use the Str module to match regular expressions. I want to
> return the longest match.
> let txt = "ab"
> let reg = "a\\|ab"
> let _ =A
> A let b = Str.string_match (Str.regexp reg) txt 0 in
> A Str.matched_string txt
> After the last line, the string "a" is apparently matched. But I hope that
> the result should be "ab". If I reverse the order of the alternatives in
> the regular expression, the string "ab" is matched. I don't want the order
> of the alternatives to matter. What am I doing wrong? What can I do to
> match the longest substring?
> Thanks
> Tom
Hello,
I had the same problem just last week and almost wrote the same mail.
This is at least a bug in the documentation ?
Cheers,
Christophe
--
Christophe Raffalli
Universite de Savoie
Batiment Le Chablais, bureau 21
73376 Le Bourget-du-Lac Cedex
tel: (33) 4 79 75 81 03
fax: (33) 4 79 75 87 42
mail: Christophe.Raffalli@univ-savoie.fr
www: http://www.lama.univ-savoie.fr/~RAFFALLI
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next prev parent reply other threads:[~2014-09-30 12:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-29 20:04 Tom Ridge
2014-09-30 12:47 ` Christophe Raffalli [this message]
2014-10-01 16:28 ` Xavier Leroy
2014-10-01 19:10 ` Tom Ridge
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