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From: William Lovas <wlovas@stwing.upenn.edu>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Pattern matching over elements at the front of a container
Date: Sun, 27 Jun 2004 07:40:09 -0400	[thread overview]
Message-ID: <20040627114008.GA16927@force.stwing.upenn.edu> (raw)
In-Reply-To: <20040627101124.GA29390@redhat.com>

On Sun, Jun 27, 2004 at 11:11:24AM +0100, Richard Jones wrote:
> 
> Also, being able to pattern match on substrings would be useful, if a
> notation could be introduced for it.  Something like:
> 
> match str with
>   "prefix" ^ str -> ...

It seems like all of these requests are really just asking for a generic
method for defining different ways of pattern matching data types.  After
hearing about why `eqtype' isn't right for O'Caml, i'd doubt any of these
ad-hoc pattern matching transformations would be either -- support for a
mechanism like views [1] would be better.  Which probably means "not
anytime soon" :)

cheers,
William

[1] http://www.haskell.org/development/views.html

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  reply	other threads:[~2004-06-27 11:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-26 11:15 Jon Harrop
2004-06-26 13:36 ` skaller
2004-06-27 10:11 ` Richard Jones
2004-06-27 11:40   ` William Lovas [this message]
2004-06-28  7:57 ` Luc Maranget
2004-06-28 12:01   ` Jon Harrop
2004-06-28 12:50     ` Luc Maranget
2004-06-28 17:09       ` Jon Harrop

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