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From: Jean Louis <bugs@gnu.support>
To: carlmarcos@tutanota.com
Cc: Help Gnu Emacs <help-gnu-emacs@gnu.org>
Subject: Re: Placement of list within an interactive clause
Date: Fri, 15 Jul 2022 10:26:06 +0300	[thread overview]
Message-ID: <YtEWjn+XS/JdDtWo@protected.localdomain> (raw)
In-Reply-To: <N6xumNL--3-2@tutanota.com>

Most of time I do not use `interactive' for supply arguments to
function.

Thus instead of following:

(defun my-fun-1 (&optional name)
  (interactive "MName: ")
  (message "Hello %s" name))

I am using following:

(defun my-fun-2 (&optional name)
  (interactive)
  (let ((name (or name (read-from-minibuffer "Name: "))))
    (message "Hello %s" name)))

as that gives me little more freedom:

- if I call (my-fun-1) ⇒ "Hello nil" that result is not what I
 really want. It makes it difficult to get the wanted result. To
 get the wanted result I need to use:

(call-interactively 'my-fun-1) ⇒ "Hello Bob"

- but if I call (my-fun-2) and NAME is not supplied, I will be
  asked for name: (my-fun-2) ⇒ "Hello Bob" and will not get "NIL"
  as result. In this case I need not complicate the call and use
`call-interactively`.

Additionall, complex `interactive` clauses I find often too
difficult to comprehend than reading the body of the function.

Fo this reason I recommend using this second approach with (or
ARGUMENT (GET-ARGUMENT)) rather then using `interactive` with
purpose to supply arguments.


-- 
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

In support of Richard M. Stallman
https://stallmansupport.org/



  parent reply	other threads:[~2022-07-15  7:26 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-14 18:14 Placement of list within an interactive clause carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-14 18:34 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-07-14 19:24   ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-14 20:15     ` Philip Kaludercic
2022-07-14 20:30     ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-07-14 20:52       ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-14 21:12         ` Stefan Monnier
2022-07-14 21:15           ` carlmarcos--- via Users list for the GNU Emacs text editor
     [not found]         ` <jwv7d4f761t.fsf-monnier+emacs@gnu.org-N6yYlrA----2>
2022-07-16 23:01           ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-17  2:38             ` Stefan Monnier
     [not found]             ` <jwvcze4pj2d.fsf-monnier+emacs@gnu.org-N790PCt----2>
2022-07-17  3:02               ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-17 13:34                 ` Stefan Monnier
2022-07-14 21:23       ` [External] : " Drew Adams
2022-07-14 22:31       ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-14 22:52         ` [External] : " Drew Adams
     [not found]         ` <SJ0PR10MB54881126A1B0DB238AE8B82BF3889@SJ0PR10MB5488.namprd10.prod.outlook.com-N6yu_1j----2>
2022-07-15 20:05           ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-15  7:26 ` Jean Louis [this message]
2022-07-15  8:19   ` Christopher Dimech
2022-07-15 10:14     ` Jean Louis
2022-07-15 10:32       ` Christopher Dimech
2022-07-15 21:03         ` Jean Louis
2022-07-15 21:22           ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-15 21:31             ` Jean Louis
2022-07-15 22:53               ` Christopher Dimech
     [not found]             ` <YtHcni0c1ZTL+V8R@protected.localdomain-N72lwEe----2>
2022-07-16 22:08               ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-16 23:40                 ` Jean Louis
2022-07-17  1:22                   ` [External] : " Drew Adams
2022-07-17  2:04                     ` RE: [External] : " Christopher Dimech
2022-07-17  1:53                   ` Christopher Dimech
2022-07-17  2:16                     ` Jean Louis
2022-07-17  2:46                       ` Christopher Dimech
2022-08-01 11:52       ` Emanuel Berg
2022-07-15 19:55   ` carlmarcos--- via Users list for the GNU Emacs text editor
2022-07-15 21:08     ` Jean Louis
2022-07-15 21:54   ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-07-16 10:15     ` Jean Louis

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