GNU bug report logs - #77823
31.0.50; M-j regression since commit 4c6b1712a4d

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Package: emacs;

Reported by: Sean Whitton <spwhitton <at> spwhitton.name>

Date: Tue, 15 Apr 2025 11:29:02 UTC

Severity: normal

Found in version 31.0.50

Done: Sean Whitton <spwhitton <at> spwhitton.name>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Sean Whitton <spwhitton <at> spwhitton.name>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50; M-j regression since commit 4c6b1712a4d
Date: Tue, 15 Apr 2025 19:27:44 +0800
X-debbugs-cc: eg642616 <at> gmail.com, eliz <at> gnu.org

1. emacs -q
2. C-x b foo RET
3. M-x emacs-lisp-mode RET
4. ;;;; hello M-j

Result is:

--8<---------------cut here---------------start------------->8---
;;;; hello|#
#|
--8<---------------cut here---------------end--------------->8---

but it should be

--8<---------------cut here---------------start------------->8---
;;;; hello
;;;;
--8<---------------cut here---------------end--------------->8---

My first thought is that since multiline comments of this style are not
valid Emacs Lisp, we should just set block-comment-start and
block-comment-end to nil for emacs-lisp-mode.

However, the recipe provided above works if you do 'M-x lisp-mode RET'
instead.

Even though Common Lisp supports these block comments, if you are
already writing a semicolon-delimited comment, then M-j should continue
it, rather than starting a #| |# comment.

-- 
Sean Whitton




This bug report was last modified 23 days ago.

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