From: Stalkern 2 <stalkern2@tin.it>
To: Xavier Leroy <xavier.leroy@inria.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] tree walking with... specular rec functions? what else?
Date: Mon, 12 May 2003 08:55:06 +0200 [thread overview]
Message-ID: <200305120855.06867.stalkern2@tin.it> (raw)
In-Reply-To: <20030511180242.A21831@pauillac.inria.fr>
Il Sunday 11 May 2003 18:02, Xavier Leroy ha scritto:
> > I've a simple tree structure and I want to walk it. Since in such a
> > simple tree structure I can go AFAIK only sidewards or
> > upwards/downwards, and I need to do both, I guess what can be an
> > efficent way to do so.
>
> That sounds like a job for Gérard Huet's "zippers":
>
> G. Huet. The Zipper. Journal of Functional Programming, 7 (5), Sept
> 1997, pp. 549--554.
>
> Apparently, the paper isn't freely available on-line, but see
>
> http://www.informatik.uni-bonn.de/~ralf/publications/TheWeb.ps.gz
>
> for a quick overview of the zipper, and more advanced stuff.
>
Thank you very much. I'm now using also a posting about zippers on this list
http://caml.inria.fr/archives/200304/msg00202.html and I was suggested to
take a look at http://pauillac.inria.fr/~remy/cours/appsem/ocaml-ml.html
Thank you
Ernesto Torresin
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next prev parent reply other threads:[~2003-05-12 6:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-09 9:56 Stalkern 2
2003-05-09 15:23 ` Brian Hurt
2003-05-12 12:57 ` John Carr
2003-05-12 13:35 ` Michal Moskal
2003-05-12 15:06 ` David Brown
2003-05-12 15:24 ` Xavier Leroy
2003-05-11 16:02 ` Xavier Leroy
2003-05-12 6:55 ` Stalkern 2 [this message]
2003-05-12 10:14 ` Gérard Huet
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