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@HIDDEN>; dated Tue, 15 Apr 2025 11:29:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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From: =?utf-8?Q?Elijah_Gabe_P=C3=A9rez?= <eg642616@HIDDEN>
To: Sean Whitton <spwhitton@HIDDEN>
Subject: Re: bug#77823: 31.0.50; M-j regression since commit 4c6b1712a4d
In-Reply-To: <87fri9rllx.fsf@HIDDEN>
References: <87v7r5slzj.fsf@HIDDEN> <86bjsxh8gw.fsf@HIDDEN>
 <87fri9rllx.fsf@HIDDEN>
Date: Tue, 15 Apr 2025 18:55:50 -0600
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--=-=-=
Content-Type: text/plain

Sean Whitton <spwhitton@HIDDEN> writes:

> reopen 77823
> thanks
>
> Hello,
>
> On Tue 15 Apr 2025 at 04:15pm +03, Eli Zaretskii wrote:
>
>> This has been fixed by a followup changeset that Elijah sent.
>>
>> So I'm closing this bug.
>
> It's still present, just replace 'M-x emacs-lisp-mode' with
> 'M-x lisp-mode' in my recipe.  M-j for editing Common Lisp is broken.
>
> Possibly Elijah's original commit has just uncovered an existing
> problem, but either way it's a bug.
>
> Elijah, can you take a look at the lisp-mode issue, please?

I found the issue, `comment-indent' was using both block-comment
variables first than `comment-start' and `comment-end', this must fix it.


--=-=-=
Content-Type: text/x-patch
Content-Disposition: inline; filename=fixpatch.patch

diff --git a/lisp/newcomment.el b/lisp/newcomment.el
index eb36f91104d..3e20da816b9 100644
--- a/lisp/newcomment.el
+++ b/lisp/newcomment.el
@@ -722,9 +722,9 @@ comment-indent
   (let* ((empty (save-excursion (beginning-of-line)
 				(looking-at "[ \t]*$")))
 	 (starter (or (and continue comment-continue)
-		      (and empty block-comment-start) comment-start))
+		      comment-start (and empty block-comment-start)))
 	 (ender (or (and continue comment-continue "")
-		    (and empty block-comment-end) comment-end)))
+		    comment-end (and empty block-comment-end))))
     (unless starter (error "No comment syntax defined"))
     (beginning-of-line)
     (let* ((eolpos (line-end-position))

--=-=-=
Content-Type: text/plain



-- 
                                          - E.G via GNU Emacs and Org.

--=-=-=--
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#77823; Package emacs. Full text available.
Did not alter fixed versions and reopened. Request was from Debbugs Internal Request <help-debbugs@HIDDEN> to internal_control <at> debbugs.gnu.org. Full text available.

Message received at 77823 <at> debbugs.gnu.org:


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From: Sean Whitton <spwhitton@HIDDEN>
To: 77823 <at> debbugs.gnu.org, eliz@HIDDEN, eg642616@HIDDEN
Subject: Re: bug#77823: 31.0.50; M-j regression since commit 4c6b1712a4d
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reopen 77823
thanks

Hello,

On Tue 15 Apr 2025 at 04:15pm +03, Eli Zaretskii wrote:

> This has been fixed by a followup changeset that Elijah sent.
>
> So I'm closing this bug.

It's still present, just replace 'M-x emacs-lisp-mode' with
'M-x lisp-mode' in my recipe.  M-j for editing Common Lisp is broken.

Possibly Elijah's original commit has just uncovered an existing
problem, but either way it's a bug.

Elijah, can you take a look at the lisp-mode issue, please?

-- 
Sean Whitton
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#77823; Package emacs. Full text available.

Message received at 77823-done <at> debbugs.gnu.org:


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Date: Tue, 15 Apr 2025 16:15:11 +0300
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From: Eli Zaretskii <eliz@HIDDEN>
To: Sean Whitton <spwhitton@HIDDEN>
In-Reply-To: <87v7r5slzj.fsf@HIDDEN> (message from Sean
 Whitton on Tue, 15 Apr 2025 19:27:44 +0800)
Subject: Re: bug#77823: 31.0.50; M-j regression since commit 4c6b1712a4d
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> Cc: eg642616@HIDDEN, eliz@HIDDEN
> From: Sean Whitton <spwhitton@HIDDEN>
> Date: Tue, 15 Apr 2025 19:27:44 +0800
> 
> 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---

This has been fixed by a followup changeset that Elijah sent.

So I'm closing this bug.
Notification sent to Sean Whitton <spwhitton@HIDDEN>:
bug acknowledged by developer. Full text available.
Reply sent to Eli Zaretskii <eliz@HIDDEN>:
You have taken responsibility. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: Sean Whitton <spwhitton@HIDDEN>
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Subject: 31.0.50; M-j regression since commit 4c6b1712a4d
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X-debbugs-cc: eg642616@HIDDEN, eliz@HIDDEN

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
Acknowledgement sent to Sean Whitton <spwhitton@HIDDEN>:
New bug report received and forwarded. Copy sent to eg642616@HIDDEN, eliz@HIDDEN, bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to eg642616@HIDDEN, eliz@HIDDEN, bug-gnu-emacs@HIDDEN:
bug#77823; Package emacs. Full text available.
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