From: Jean Louis <bugs@gnu.support>
To: help-gnu-emacs@gnu.org
Subject: Re: Is there any difference between `equal' and `string=' for strings?
Date: Fri, 20 Aug 2021 08:25:16 +0300 [thread overview]
Message-ID: <YR88vCATcNjhEex4@protected.localdomain> (raw)
In-Reply-To: <87v941domi.fsf@zoho.eu>
* Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> [2021-08-20 02:04]:
> Marcin Borkowski wrote:
>
> > Well, of course a string and a symbol can never be `equal',
> > but they can be `string='. But what if both arguments
> > are strings?
>
> ... and if both arguments are symbols?
>
> (string= 'hi 'hi) ; t
>
> (Why ever one would use `string=' for that.)
>
> Yeah, it is a jungle all that ...
How I understand it, it is good also for comparison of symbols as
strings.
(setq s1 "Jane") ⇒ "Jane"
(setq s2 "Jane") ⇒ "Jane"
(setq s3 "Doe") ⇒ "Doe"
Then this is how I understand the intended purpose:
(string= s1 s2) ⇒ t
(string= s1 s3) ⇒ nil
And of course you are free to compare empty symbols:
(string= 'hi 'hi) ⇒ t
However by looking at the purpose it becomes all logical to me.
--
Jean
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next prev parent reply other threads:[~2021-08-20 5:25 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 4:56 Is there any difference between `equal' and `string=' for strings? Marcin Borkowski
2021-08-19 6:21 ` Jean Louis
2021-08-19 23:14 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-20 5:35 ` Jean Louis
2021-08-20 6:32 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 9:05 ` Jean Louis
2021-08-21 19:14 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-19 15:35 ` [External] : " Drew Adams
2021-08-21 3:43 ` this is United States calling (was: Re: [External] : Is there any difference between `equal' and `string=' for strings?) Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 3:49 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 4:20 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 5:39 ` FW: " Drew Adams
2021-08-21 19:41 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 6:50 ` tomas
2021-08-21 19:41 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-19 23:02 ` Is there any difference between `equal' and `string=' for strings? Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-20 5:25 ` Jean Louis [this message]
2021-08-20 6:24 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-20 6:41 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-20 23:12 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-20 23:42 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 0:08 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 0:30 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 9:08 ` Jean Louis
2021-08-21 19:17 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-21 9:04 ` Jean Louis
2021-08-21 19:09 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-08-24 14:55 ` Marcin Borkowski
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