GNU bug report logs - #76734
31.0.50; The line numbers take more space than they need

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: the_wurfkreuz <the_wurfkreuz <at> proton.me>
Subject: bug#76734: closed (Re: bug#76734: 31.0.50; The line numbers take
 more space than they need)
Date: Tue, 04 Mar 2025 21:37:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#76734: 31.0.50; The line numbers take more space than they need

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 76734 <at> debbugs.gnu.org.

-- 
76734: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=76734
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Stefan Kangas <stefankangas <at> gmail.com>
To: the_wurfkreuz <the_wurfkreuz <at> proton.me>, Eli Zaretskii <eliz <at> gnu.org>
Cc: 76734-done <at> debbugs.gnu.org
Subject: Re: bug#76734: 31.0.50;
 The line numbers take more space than they need
Date: Tue, 4 Mar 2025 21:36:21 +0000

the_wurfkreuz via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs <at> gnu.org> writes:

> Sent with Proton Mail secure email.
>
> On Tuesday, March 4th, 2025 at 2:55 PM, Eli Zaretskii <eliz <at> gnu.org> wrote:
>
>> tags 76734 notabug
>> thanks
>>
>> > Date: Tue, 04 Mar 2025 06:31:00 +0000
>> > From: the_wurfkreuz via "Bug reports for GNU Emacs,
>> > the Swiss army knife of text editors" bug-gnu-emacs <at> gnu.org
>> >
>> > When using the line-numbers mode, the line numbers start to take an
>> > additional space from a buffer way before the line count reaches 3
>> > digit numbers.
>> >
>> > Steps to reproduce:
>> >
>> > 1. Evaluate:
>> >
>> > (global-display-line-numbers-mode 1)
>> > (setq display-line-numbers 'visual
>> > display-line-numbers-type 'relative)
>> >
>> > (fringe-mode '(1 . 1))
>> >
>> > 2. Then create new lines in the same buffer using the newline
>> > command. In my case i get an additional space on a 38th line already.
>>
>>
>> This is by design. Emacs cannot know how many lines will actually be
>> shown in the window before it actually shows them all. By contrast,
>> it needs to decide how many columns to allocate for line numbers
>> before it displays even a single line, to avoid the annoying
>> horizontal movement of text as much as possible. So it sometimes errs
>> on the safe side (recall that some lines could be smaller than others
>> due to different fonts), to avoid the need to display the window
>> twice, which would significantly punish performance in this mode.
>>
>> Why is that a problem?
>
> If it's done so intentionally, then there is no inherent problem.

Yes, I think it's intentional here, sorry.  Thanks for the bug report,
nevertheless.

I guess the only thing left to do here is to close the bug; I'm doing
that with this message.

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From: the_wurfkreuz <the_wurfkreuz <at> proton.me>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: 31.0.50; The line numbers take more space than they need
Date: Tue, 04 Mar 2025 06:31:00 +0000

[Message part 4 (text/plain, inline)]

When using the line-numbers mode, the line numbers start to take an
additional space from a buffer way before the line count reaches 3
digit numbers.

Steps to reproduce:

1. Evaluate:

(global-display-line-numbers-mode 1)
(setq display-line-numbers 'visual
display-line-numbers-type 'relative)

(fringe-mode '(1 . 1))

2. Then create new lines in the same buffer using the newline
command. In my case i get an additional space on a 38th line already.

In GNU Emacs 31.0.50 (build 3, x86_64-pc-linux-gnu, GTK+ Version
3.24.43, cairo version 1.18.0) of 2025-02-19 built on ub-void
Repository revision: b568ff418ce7147c27d7f82fe4a8eef325b9de2c
Repository branch: HEAD
System Description: Void Linux

Configured using:
'configure --with-native-compilation=aot --with-tree-sitter --with-gif
--with-png --with-jpeg --with-rsvg --with-tiff --with-imagemagick
--with-pgtk --with-mailutils CC=/usr/bin/gcc CXX=/usr/bin/gcc'

Configured features:
CAIRO DBUS FREETYPE GLIB GMP GNUTLS GSETTINGS HARFBUZZ IMAGEMAGICK JPEG
LCMS2 LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK PNG RSVG
SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP
XIM GTK3 ZLIB

Important settings:
value of $LC_COLLATE: C
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix

Major mode: ELisp/l

Minor modes in effect:
windmove-mode: t
savehist-mode: t
meow-global-mode: t
meow-mode: t
meow-normal-mode: t
meow-esc-mode: t
envrc-global-mode: t
envrc-mode: t
buffer-terminator-mode: t
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magit-auto-revert-mode: t
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vertico-mode: t
corfu-popupinfo-mode: t
corfu-history-mode: t
corfu-echo-mode: t
global-corfu-mode: t
corfu-mode: t
which-key-mode: t
undo-fu-session-global-mode: t
undo-fu-session-mode: t
global-treesit-auto-mode: t
global-auto-revert-mode: t
save-place-mode: t
electric-pair-mode: t
recentf-mode: t
global-display-line-numbers-mode: t
display-line-numbers-mode: t
override-global-mode: t
tooltip-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tab-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
minibuffer-regexp-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t

Load-path shadows:
/home/wurfkreuz/.emacs.d/elpa/transient-20250108.1351/transient hides /usr/local/share/emacs/31.0.50/lisp/transient

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Memory information:
((conses 16 1020202 193596) (symbols 48 53352 11) (strings 32 257404 62454)
(string-bytes 1 8166769) (vectors 16 99053) (vector-slots 8 1933532 133075)
(floats 8 827 2083) (intervals 56 12099 2590) (buffers 992 28))

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