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From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: cl-dolist, dolist, cl-return,
Date: Wed, 08 Jul 2015 12:17:27 +0200	[thread overview]
Message-ID: <87twtf2bt4.fsf@nl106-137-147.student.uu.se> (raw)
In-Reply-To: 874mlfs53n.fsf@kuiper.lan.informatimago.com

"Pascal J. Bourguignon" <pjb@informatimago.com>
writes:

> (loop for item in list until (some-condition-p
> item))

These loops are brilliant! Only there are so many,
which overlap... Perhaps one could draw a
"periodic table" of Lisp loops. I remember something
like that from the book "Land of Lisp", but I read
that at the library so I can't check.
Good book, anyway.

    @book{land-of-lisp,
      title      = {Land of Lisp},
      author     = {Conrad Barski},
      publisher  = {No Starch},
      year       = 2010,
      ISBN       = 1593272812
    }

In C there are what I remember only three loops (if
you don't count recursion, or gotos for that matter) -
the familiar for, while, and 'do while'. It is
possible to construct all (?) loops with these, but
I like the Lisp way more where it can be expressed in
syntax, not merely constructed in code.

The loop finally turned up like this:

    (cl-loop for b in (erc-buffer-list)
             when (neq b (current-buffer)) do ...

-- 
underground experts united
http://user.it.uu.se/~embe8573




  reply	other threads:[~2015-07-08 10:17 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.6511.1436314595.904.help-gnu-emacs@gnu.org>
2015-07-08  3:25 ` cl-dolist, dolist, cl-return, Pascal J. Bourguignon
2015-07-08 10:17   ` Emanuel Berg [this message]
2015-07-08 14:02     ` Drew Adams
2015-07-08 23:10       ` Emanuel Berg
     [not found]       ` <mailman.6588.1436397019.904.help-gnu-emacs@gnu.org>
2015-07-08 23:56         ` Pascal J. Bourguignon
2015-07-08  0:14 Emanuel Berg
2015-07-08  0:31 ` John Mastro
2015-07-08  3:09   ` Stefan Monnier
2015-07-08 10:25     ` Emanuel Berg
2015-07-08 14:44       ` Stefan Monnier
2015-07-08 23:19         ` Emanuel Berg
2015-07-09  1:49           ` John Mastro
2015-07-09 22:00             ` Emanuel Berg
     [not found]             ` <mailman.6636.1436479362.904.help-gnu-emacs@gnu.org>
2015-07-10 18:44               ` Barry Margolin
2015-07-11 18:52                 ` Emanuel Berg
2015-07-10 16:57           ` Stefan Monnier
2015-07-08 10:23   ` Emanuel Berg

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