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Re: [PATCH] Readline not being able to handle long lines

From: Mihail Konev
Subject: Re: [PATCH] Readline not being able to handle long lines
Date: Tue, 29 Nov 2016 13:27:27 +0500

On Tue, Nov 29, 2016 at 12:47:26PM +0500, Mihail Konev wrote:
> On Tue, Nov 29, 2016 at 08:27:00AM +0500, Mihail Konev wrote:
> > Msys2 on windows, at least, should do it without a problem.
> Tried both it (bash 4.3.46) and arch linux in qemu (bash 4.3.46).
> Neither reproduced.
> Nevertheless, MSYS2 was exhibiting the bug all the time, most likely,
> with bash 4.3.46.
> Perhaps this has to do with ^Z and fg ...
> ... but the real linux system exhibits it, straight from the console login.
> And in terminal emulators too.
> And the patch helps on f459cbd8be37b28be1dc90315e0ab51d7f211301,
> i.e. bash 4.4.5
> Would now try to hit this on MSYS2 again :)

It was triggered by PS1.

PS1='\[\e]0;address@hidden \[\e[35m\]$MSYSTEM\[\e[0m\] 
\[\e[33m\]\w\[\e[0m\]\n\$ '

Buggy (replace the ^-sequences in the second line):
PS1="[\${PWD##*/}]\$ "      # set the prompt
PS1="^[]0;\$PWD^G^M$PS1"    # set the window title

Does not trigger:
PS1='\[\e]0;WINDOW_TITLE_HERE \w\a\][${PWD##*/}]\$ '

Does not trigger:
PS1='[bash]$ '

For the second one, replacing ${PWD##*/} with 'bash' does not help.
But commenting out the set-window-title does.

Escape sequences were all googled/copypasted.

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