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Re: [readline] Multibyte invisible chars cause weird prompt length calcu

From: Chet Ramey
Subject: Re: [readline] Multibyte invisible chars cause weird prompt length calculation issue
Date: Wed, 27 Nov 2019 20:29:08 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.9.1

On 11/27/19 3:19 PM, Алексей Шилин wrote:
> В Ср, 27/11/2019 в 11:48 -0500, Chet Ramey пишет:
>> The reason I ask is that I can (unsurprisingly) reproduce multiple
>> redisplay issues if the newline after the `\h:' is present, but none
>> when $PS1 doesn't contain any newlines.
> You mean you can't reproduce the issue? That's weird, since I can
> easily do it in Konsole, in GNOME Terminal, even in bare tty; in Debian
> 10, in Fedora 31 - all with PS1 as simple as '\[\e]0;\w\a\]\w\$ '. Are
> you sure you're using a multi-byte path (like the one I provided) and a
> *.UTF-8 locale?

Yes, and yes. I poked around enough and found the cause. There will be a
fix in the next devel branch push.

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

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