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bug#44594: tabulated-list-mode: column header needlessly truncated
From: |
Lars Ingebrigtsen |
Subject: |
bug#44594: tabulated-list-mode: column header needlessly truncated |
Date: |
Fri, 27 Aug 2021 18:41:55 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Stefan Kangas <stefan@marxist.se> writes:
> The column header in tabulated-list-mode is needlessly truncated.
>
> Steps to reproduce:
>
> 0. emacs -Q
> 1. M-x list-buffers RET
> 2. C-x o
> 3. C-4 C-f
> 4. C-1 C-4 {
>
> Result: The header is truncated to "Buff..." even though there is enough
> space to show it all.
>
> Expected result: The header is not truncated.
The issue is basically this:
(truncate-string-to-width "Buffer" 5 nil nil t)
=> "Buff…"
Or... Uhm... Oh! I've never noticed that the mode lets column overlap:
;; Truncate labels if necessary (except last column).
;; Don't truncate to `width' if the next column is align-right
;; and has some space left, truncate to `available-space' instead.
(when (and not-last-col
(> label-width available-space))
(setq label (truncate-string-to-width
label available-space nil nil t t)
label-width available-space))
So we allow column data to extend into the next column (if the next
column is right-aligned). But we don't do the same computation in the
header? Right.
Now fixed in Emacs 28.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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