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From: Emanuel Berg <incal@dataswamp.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Surprising behaviour of 'append' with strings
Date: Sun, 06 Nov 2022 13:32:16 +0100	[thread overview]
Message-ID: <875yfse01b.fsf@dataswamp.org> (raw)
In-Reply-To: 6554cc02-2082-3dca-73cc-05fee1c6c4d0@yahoo.de

R. Diez wrote:

> However, I got into trouble with 'append'. Its documentation
> states:
>
> "Each argument may be a list, vector or string."
>
> I tested it like this:
>
> (append "1")      -> "1"
> (append "1" "2")  -> (49 . "2")

`append' is like that with strings (well, obviously), try it
with lists instead.

Also see `cl-concatenate', `push', and many other ways to
create and manipulate lists.

But I think you are on the wrong track here, you insert
a layer of complexity with this Elisp to semi-manually hammer
out shell commands, this will be very time-consuming and
error-prone, better to have all the shell stuff in shell
functions and scripts, those OTOH you can absolutely execute
from Emacs/Elisp and use their results - and that's a fine way
to do it.

-- 
underground experts united
https://dataswamp.org/~incal




  parent reply	other threads:[~2022-11-06 12:32 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <6554cc02-2082-3dca-73cc-05fee1c6c4d0.ref@yahoo.de>
2022-11-06 11:05 ` Surprising behaviour of 'append' with strings R. Diez
2022-11-06 12:13   ` Stephen Berman
2022-11-06 12:35     ` Emanuel Berg
2022-11-06 20:28       ` Michael Heerdegen
2022-11-06 20:57         ` Emanuel Berg
2022-11-06 12:19   ` Emanuel Berg
2022-11-06 12:32   ` Emanuel Berg [this message]
2022-11-06 12:37   ` Eli Zaretskii
2022-11-06 12:39   ` Jean Louis
2022-11-06 20:33   ` Michael Heerdegen
2022-11-06 21:45     ` [External] : " Drew Adams

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