From: Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Is there any difference between `equal' and `string=' for strings?
Date: Sat, 21 Aug 2021 01:12:05 +0200 [thread overview]
Message-ID: <87lf4v90e2.fsf@zoho.eu> (raw)
In-Reply-To: 87lf4wd3dz.fsf@zoho.eu
> (defun do-something (method)
> (when (string= method "now")
> (message "I'm all over it") ))
What about
(defun get-string (s)
(if (stringp s)
s
(let ((val (symbol-value s)))
(or (and (stringp val) val)
(symbol-name s) ))))
(defun string== (s1 s2)
(string= (get-string s1)
(get-string s2) ))
(defvar one)
(setq one nil)
(string== "one" "one") ; t
(string== 'one "one") ; t
(defvar two)
(setq two "one")
(string== 'two "one") ; t
(string== two "one") ; t, confusing
(setq one "two")
(string== one "one") ; nil
; argh ...
--
underground experts united
https://dataswamp.org/~incal
next prev parent reply other threads:[~2021-08-20 23:12 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
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 [this message]
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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