From: Heime <heimeborgia@protonmail.com>
To: Dr Rainer Woitok <rainer.woitok@gmail.com>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: Re: Setting value 1 when matching two strings
Date: Sun, 16 Oct 2022 20:21:22 +0000 [thread overview]
Message-ID: <D5VorrkcdCKSTRg-DNFmc0-jI4zPvCpU5PtWqI3NSftRhBs91DvGIgAqLfqSrJ7tWCIV8r3KmhKjptLrIZqWs6DHphroD7JN6HffjBJWOHg=@protonmail.com> (raw)
In-Reply-To: <25420.12274.577322.322044@tux.local>
------- Original Message -------
On Sunday, October 16th, 2022 at 4:23 PM, Dr Rainer Woitok <rainer.woitok@gmail.com> wrote:
> Heime,
>
> On Sunday, 2022-10-16 15:51:44 +0000, you wrote:
>
> > This code sets "isel" to value "1" if "actm" matches "vert". I want to extend this so that value "1"
> > is also set when "actm" matches "horz".
> >
> > (let ( (isel (if (equal "vert" actm) 1 -1)) )
> >
> > Thus when "actm" matches "vert" or "horz", then "isel" has value "1". Otherwise "isel" has value "-1".
>
> In case you don't really need "vert" as a string but could as well use
> the symbol 'vert, you could use "eq" rather than "equal".
Have seen that with symbols there is no difference between (eq actm 'go) and (equal actm 'go).
Although the recommendation and actual use has always been in support for (eq actm 'go).
> And if you want two or more alternatives, you could use
>
> (member actm '("vert" "horz"))
>
> or
>
> (memq actm '(vert horz))
>
> Sincerely,
> Rainer
next prev parent reply other threads:[~2022-10-16 20:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-16 15:51 Setting value 1 when matching two strings Heime via Users list for the GNU Emacs text editor
2022-10-16 16:23 ` Dr Rainer Woitok
2022-10-16 16:33 ` Heime
2022-10-16 20:21 ` Heime [this message]
2022-10-16 21:23 ` [External] : " Drew Adams
2022-10-16 22:33 ` Heime
2022-10-16 23:16 ` Michael Heerdegen
2022-10-16 23:21 ` Heime
2022-10-16 23:39 ` Michael Heerdegen
2022-10-17 0:17 ` Heime
2022-10-17 0:41 ` Drew Adams
2022-10-17 0:57 ` Michael Heerdegen
2022-10-17 1:06 ` Drew Adams
2022-10-17 0:42 ` Michael Heerdegen
2022-10-17 1:40 ` Christopher Dimech
2022-10-17 1:46 ` Michael Heerdegen
2022-10-17 2:17 ` Heime
2022-10-17 0:42 ` Drew Adams
2022-10-17 4:31 ` Jean Louis
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