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From: Ted Zlatanov <tzz@lifelogs.com>
To: emacs-devel@gnu.org
Subject: Re: general lazy list facility for Emacs Lisp?
Date: Wed, 23 Mar 2011 12:12:34 -0500	[thread overview]
Message-ID: <87oc51rcal.fsf@lifelogs.com> (raw)
In-Reply-To: 877hbpzsy8.fsf@member.fsf.org

On Wed, 23 Mar 2011 17:45:35 +0100 Tassilo Horn <tassilo@member.fsf.org> wrote: 

TH> Ted Zlatanov <tzz@lifelogs.com> writes:
>> Is there a package for general lazy list management in Emacs Lisp?

TH> What's a lazy list?  Something like a LazySeq in Clojure, that is, a
TH> possibly infinite sequence of things that are only calculated when
TH> actually consumed ("realized")?

TH> If that's what you mean, I think the answer is no.

Yes, that's what I mean.  In Haskell such lists are simply part of the
core language; Perl 5 can hack them together with list accessors; Perl 6
has them in the core too...  I think "lazy list" is a popular term for
the general facility?  I'm surprised no one has needed them, whatever
the name :)

Slightly related: is there a general memoization package or standard
approach to memoizing functions?

Ted




  reply	other threads:[~2011-03-23 17:12 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-23 15:07 general lazy list facility for Emacs Lisp? Ted Zlatanov
2011-03-23 16:45 ` Tassilo Horn
2011-03-23 17:12   ` Ted Zlatanov [this message]
2011-03-23 17:46     ` Thierry Volpiatto
2011-03-23 18:09       ` Ted Zlatanov
2011-03-23 18:27         ` Thierry Volpiatto
2011-03-23 20:33           ` Ted Zlatanov
2011-03-23 20:43             ` Ted Zlatanov
2011-03-23 19:03     ` Tassilo Horn
2011-03-23 19:10       ` Tassilo Horn
2011-03-23 19:42         ` Ted Zlatanov
2011-03-24  5:27           ` Eric Schulte
2011-03-24 15:43             ` Ted Zlatanov
2011-03-25 12:30               ` Eric Schulte
2011-03-23 20:03         ` Stefan Monnier
2011-03-23 20:14           ` Jason Earl
2011-03-23 20:19             ` Tassilo Horn
2011-03-23 20:18           ` Tassilo Horn
2011-03-23 20:41             ` Tassilo Horn
2011-03-23 21:51               ` Stefan Monnier
2011-03-24  7:26                 ` Tassilo Horn
2011-03-23 20:26       ` Ted Zlatanov
2011-03-23 17:13   ` Drew Adams

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