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bug#66283: 30.0.50; which-function-mode: When configured to display in h
From: |
Mekeor Melire |
Subject: |
bug#66283: 30.0.50; which-function-mode: When configured to display in header, and toggling off, then does not remove header |
Date: |
Sat, 30 Sep 2023 20:41:05 +0000 |
Execute: emacs -Q
Configure Which Function Mode to display in header by evaluating
the following; note that this is a new feature in Emacs 30:
(customize-set-variable 'which-func-display 'header)
Toggle Which Function Mode on by typing: M-x which-function-mode
RET
Toggle Which Function Mode off by typing again: M-x
which-function-mode RET
You can see a dysfunctional header. (It won't be update because
Which Function Mode is off.) To be precise, the value of variable
`header-line-format' is '(("" which-func-format " ")). Apparently,
this variable has not been cleaned up appropriately. This is the
job of the function `which-func--disable'. [1]
In order to test the `which-func--disable' function, type: M-:
(which-func--disable) RET
The header disappeared. The value of variable `header-line-format' is `nil'.
This means, that the function does its job well. Apparently, it's not being
called when toggling off. [2]
[1]:
https://git.sv.gnu.org/cgit/emacs.git/tree/lisp/progmodes/which-func.el?h=35fbf6f15830f576fd1909f4a8d30e7ba1d777bd#n225
[2]: Where is the "Turn it off." comment here?
https://git.sv.gnu.org/cgit/emacs.git/tree/lisp/progmodes/which-func.el?h=35fbf6f15830f576fd1909f4a8d30e7ba1d777bd#n289
--
In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.37, cairo version 1.16.0)
Windowing system distributor 'The X.Org Foundation', version
11.0.12101004
System Description: Guix System
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- bug#66283: 30.0.50; which-function-mode: When configured to display in header, and toggling off, then does not remove header,
Mekeor Melire <=