Re: Have to run redraw-display manually

[Eli Zaretskii <eliz@gnu.org>]

[Why private email?]
> From: Cos Chan <rosettas@gmail.com>
> Date: Tue, 21 Sep 2021 13:03:46 +0200
> 
> I did more testing, and it seems that changing the system tab width by 
> $ tabs 4
> would create this problem(also in tcsh). If I change it back to 8 the problem is gone.
> 
> Here is content of my .emacs file:
> (add-to-list 'load-path "~/.emacs.d/lisp/")
> ;; lisp scripts
> (require 'sudo-save)
> ;; editting settings
> (setq-default indent-tabs-mode t)
> (setq-default tab-width 4)
> (normal-erase-is-backspace-mode 1)
> ;; backup and autosave to temporary directory
> (setq backup-directory-alist
>       `((".*" . ,temporary-file-directory)))
> (setq auto-save-file-name-transforms
>       `((".*" ,temporary-file-directory t)))
> ;; set color to be compatible with dark background
> (setq frame-background-mode 'dark)
> 
> I made a simple file test_emacs for testing, here is the content:
> HISTSIZE=999
> SAVEHIST=999
> setopt appendhistory autocd beep extendedglob nomatch notify
> 
> How to reproduce:
> $ emacs test_emacs
> type 2 times ctrl-n, the point is on "s" (from setopt, line 3)
> type alt-f, the point is on character "t" (from setopt, line 3, the third character)
> type alt-x and redraw display, the point is on the first space (line3, the 7th character)
> 
> With little tuning for the testing file, I removed the last "t" from "setopt" and the testing result was:
> $ emacs test_emacs
> type 2 times ctrl-n, the point is on "s" (from setopt, line 3)
> type alt-f, the point is on the first space. (Which is correct)
> type alt-f, the point is on the second space. (Which is correct)
> type alt-f, the point is on the third space. (Which is correct)
> type alt-f, the point is on the "b". (from beep, which is incorrect)
> type alt-x and redraw display, the point is on the fourth space.
> 
> Please suggest.

My suggestion is not to do "tabs 4", it changes how the terminal
behaves regarding cursor motion.