unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Thorsten Jolitz <tjolitz@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: `call-interactively' and prefix args
Date: Tue, 03 Jun 2014 15:15:04 +0200	[thread overview]
Message-ID: <8761kim8x3.fsf@gmail.com> (raw)
In-Reply-To: 87r436gnfq.fsf@geodiff-mac3.ulb.ac.be

Nicolas Richard <theonewiththeevillook@yahoo.fr> writes:

> Thorsten Jolitz <tjolitz@gmail.com> writes:
>> So, when I have an (interactive) command cmd1 that calls a
>> non-interactive function fun that calls another (interactive "P")
>> command cmd2 with `call-interactively' - can I assume that a prefix arg
>> (e.g. by C-u) given before calling cmd1 will be transferred to cmd2?
>
> current-prefix-arg is used. If cmd1 changes it, anything can happen.
>
> e.g.
>
> (global-set-key (kbd "<f6>") (lambda () (interactive) (yffoo)))
> (defun yffoo () (setq current-prefix-arg '(5)) (call-interactively 'yfbar))
> (defun yfbar (&optional arg) (interactive "P") (message "arg is %S" arg))
>
> hitting f6 will show that arg is (5) (which doesn't make sense in an
> true interactive call)

Ok, thanks! Then misbehaviour must be coded explicitly, otherwise things
should work as expected ... what is good. 

-- 
cheers,
Thorsten




  reply	other threads:[~2014-06-03 13:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-03 12:46 `call-interactively' and prefix args Thorsten Jolitz
2014-06-03 12:58 ` Nicolas Richard
2014-06-03 13:15   ` Thorsten Jolitz [this message]
2014-06-03 13:55     ` Stefan Monnier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=8761kim8x3.fsf@gmail.com \
    --to=tjolitz@gmail.com \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).