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bug#52947: 29.0.50; Newline in tab-bar-format causes lockup
From: |
Juri Linkov |
Subject: |
bug#52947: 29.0.50; Newline in tab-bar-format causes lockup |
Date: |
Sun, 02 Jan 2022 19:47:14 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (x86_64-pc-linux-gnu) |
> Execute the following elisp:
Thanks for the bug report.
> #+begin_src emacs-lisp
> (defun broken-tab-bar-format ()
> (let* ((str (format "%s \n %s"
> "foo" "bar")))
> `((global menu-item ,(s-trim str) ignore))))
This also can be reproduced without s-trim, with just:
`((global menu-item ,str ignore))))
> (progn
> (setq tab-bar-format '(tab-bar-format-align-right
> broken-tab-bar-format))
> (tab-bar-mode 1))
> #+end_src
>
> Emacs will lockup and spin the core it's on.
If the display engine doesn't support newlines in the
menu-bar/tool-bar/tab-bar, then we could simply remove newlines
before feeding the tab-bar items to the display engine.