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Prompt color reset after using arrow keys


From: Gioele Barabucci
Subject: Prompt color reset after using arrow keys
Date: Wed, 7 Aug 2024 23:05:22 +0200
User-agent: Mozilla Thunderbird

Hi,

in bash 5.2.21 the following PS1 assignment

    PS1=$'\[\e[0;34;42m\]'$(printf x%.0s {1..111})$'\[\e[0m\]\$ '

should make the prompt a long list of "x", displayed in blue on a red background. This is in fact the case.

However, if the terminal window is smaller than 111 characters and, thus, the prompt is split onto two lines, the following bug will appear:

Pressing the up arrow and then the down arrow, will reset the part of the prompt in the last line. The last line will no longer be styled with blue-on-green colors, but it will use the standard colors (white on black, in my case).

Tested with xterm and gnome-termimal, using TERM=xterm-256color.

Regards,

--
Gioele Barabucci



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