From: Richard Lawrence <richard.lawrence@uni-tuebingen.de>
To: emacs-orgmode@gnu.org
Subject: Is M-j broken for you in Org on Emacs 27 and 28?
Date: Sun, 28 Nov 2021 11:26:38 +0100 [thread overview]
Message-ID: <87lf18fue9.fsf@aquinas.i-did-not-set--mail-host-address--so-tickle-me> (raw)
Hi Org community,
Some questions for those of you on Emacs 27 and 28:
Does M-j in an org-mode buffer do what you expect?
Does it throw an error?
What function is M-j bound to in Org?
Backstory:
I have long been on Emacs 26.3 (in Debian stable) but recently decided
to try a newer Emacs from GNU Guix. I immediately ran into an issue,
and now I'm trying to figure out if it's a bug, and if so where to file
it: in both Emacs 27.2 and 28.0.50, typing M-j in an Org buffer throws
(wrong-type-argument char-or-string-p nil)
The source of this problem appears to be that the keybinding for M-j
changed between Emacs 26 and 27. In Emacs 26 it calls
indent-new-comment-line. In Emacs 27 and 28 it calls
default-indent-new-line, and the call stack look like:
insert-before-markers-and-inherit(nil)
org-comment-line-break-function(nil)
default-indent-new-line()
funcall-interactively(default-indent-new-line)
call-interactively(default-indent-new-line nil nil)
command-execute(default-indent-new-line)
The error arises because insert-before-markers-and-inherit cannot accept
nil (the value of fill-prefix in this context).
I see this error in emacs -q with both Emacs 27 and 28 from Guix.
After some investigation, the functions involved here don't appear to
have changed at all recently (though see [1]); just the binding. This
leads me to ask: why hasn't this been discovered already? Which leads
me to wonder if I am using M-j in some non-standard way.
Some time in the distant past, I internalized the idea that M-j is a
better way to type a newline because (a) it doesn't involve a pinky
reach and (b) in most contexts in Emacs, it is more likely to "do what I
mean" than RET is. In particular, it continues comments and indents
properly. (I am also an evil-mode user and there is probably some part
of my brain that thinks "M-j is like j for insert mode".) But maybe that
was always wrong, and the recently changed binding is just an indication
that I was not using M-j as intended.
So which is it? Is this a bug in Emacs, in Org, or in my ingrained
typing habits? Many thanks for your advice.
--
Best,
Richard
[1] There is a commit which changed default-indent-new-line in August of
this year, but the changes don't seem relevant to the error I'm seeing,
since I also see it in Emacs 27.2:
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=b41f31d2b60269bd0e7addd1081f3738f91e76bc
next reply other threads:[~2021-11-28 10:27 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-28 10:26 Richard Lawrence [this message]
2021-11-28 14:37 ` Is M-j broken for you in Org on Emacs 27 and 28? Greg Minshall
2021-11-28 14:45 ` Colin Baxter 😺
2021-11-28 20:17 ` Richard Lawrence
2021-11-29 1:18 ` Tim Cross
2021-11-29 8:09 ` Richard Lawrence
2021-11-29 13:35 ` Tim Cross
2021-11-29 15:49 ` Richard Lawrence
2021-11-29 14:31 ` Colin Baxter 😺
2021-11-30 1:10 ` Tim Cross
2021-11-30 17:03 ` [PATCH] Fix org-comment-line-break-function (was: Is M-j broken for you in Org on Emacs 27 and 28?) Richard Lawrence
2021-11-30 20:18 ` [PATCH] Fix org-comment-line-break-function Marco Wahl
2021-11-30 22:06 ` Tim Cross
2021-12-01 8:36 ` Marco Wahl
2021-11-30 22:08 ` Kaushal Modi
2021-11-30 23:15 ` Tim Cross
2021-11-30 23:53 ` Kaushal Modi
2021-12-01 1:44 ` Kaushal Modi
2021-12-01 6:17 ` Tim Cross
2021-12-01 8:16 ` Richard Lawrence
2021-12-01 13:02 ` Nicolas Goaziou
2021-12-04 22:23 ` Tim Cross
2021-12-05 3:36 ` Kaushal Modi
2021-12-05 9:14 ` Nicolas Goaziou
2021-12-06 13:17 ` Richard Lawrence
2021-12-06 13:51 ` Kaushal Modi
2021-12-11 15:47 ` Nicolas Goaziou
2022-09-29 5:11 ` Ihor Radchenko
[not found] ` <871qro5e4w.fsf@aquinas.mail-host-address-is-not-set>
2022-10-04 11:55 ` Ihor Radchenko
2021-11-30 17:16 ` Is M-j broken for you in Org on Emacs 27 and 28? Morgan Willcock
2021-11-29 8:22 ` Richard Lawrence
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