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From: Stephen Berman <stephen.berman@gmx.net>
To: help-gnu-emacs@gnu.org
Subject: Re: problem with mapconcat
Date: Thu, 04 Mar 2010 10:35:29 +0100	[thread overview]
Message-ID: <87eik0o2e6.fsf@escher.home> (raw)
In-Reply-To: 4B8F630E.2040301@easy-emacs.de

On Thu, 04 Mar 2010 08:36:46 +0100 Andreas Röhler <andreas.roehler@easy-emacs.de> wrote:

> Thamer Mahmoud wrote:
>> Thamer Mahmoud <thamer.mahmoud@gmail.com> writes:
>>> Another alternative:
>>>
>>> (mapconcat 'string (string-to-list "abc") "/")
>>>
>>> => "a/b/c"
>> 
>> After sending the above, I realized that this would work too:
>> 
>> (mapconcat 'string "abc" "/")
>> 
>> 
>> 
>> 
>> 
>
> That seems to work either, whats strange for me:
>
> (mapconcat 'list "abc" "/")"a/b/c"

Maybe this helps clarify why that works:

(let (r)
  (dolist (e (string-to-list "abc") r)
    (setq r (concat r (if (null r) "" "/") (list e)))))

Steve Berman





  reply	other threads:[~2010-03-04  9:35 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-03 12:49 problem with mapconcat Christian Wittern
2010-03-03 13:50 ` Dan Davison
2010-03-03 13:55   ` Christian Wittern
2010-03-03 13:57 ` Teemu Likonen
2010-03-03 15:23   ` Thamer Mahmoud
2010-03-03 15:41     ` Thamer Mahmoud
2010-03-04  1:39       ` Christian Wittern
2010-03-04  7:36       ` Andreas Röhler
2010-03-04  9:35         ` Stephen Berman [this message]
2010-03-04 15:07           ` Andreas Röhler
2010-03-04  6:56 ` Kevin Rodgers

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