Re: readline 8.2-alpha: erratic display with long prompt with invisible characters

[Chet Ramey]

On 2/28/22 2:51 PM, Andreas Schwab wrote:
> With
> 
> PS1="\[$(tput bold)\]\h:\w/:[\$?]\\\$\[$(tput sgr0)$(tput cnorm)\] "
> 
> if \w expands to such a long string so that the right margin is exactly
> before the final space in the prompt (ie. the second line starts with
> that space), display becomes erratic: the display of the input line is
> shifted to the right by a few spaces on the second line, with the cursor
> stuck on the left margin.  Note that when the final space is removed
> from the prompt the display works fine.  This is a regression from
> readline 8.1.

I can't reproduce this using macOS Terminal:

chet-mail:/usr/local/build/chet/bash/bash-current.rhe7/examples/loadables1/:[0]$
eifueifutwekadicas adjb ashbcasdhb cadhbcashd jadh chasd ohafs

(you might have to enlarge your message display window to get the wrapping
right). I'll have to look at some other terminal emulators.


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/