Re: PS0 vs. \[ \]

Chet Ramey <[email protected]> Mon, 18 May 2026 11:21:41 -0400

Newsgroups	gmane.comp.shells.bash.bugs
Organization	ITS, Case Western Reserve University
Message-ID	<[email protected]>

On 5/15/26 7:47 AM, Koichi Murase wrote:

> I think ${var@P} should also remove \x01 and \x02 at the final step.

This transformation is often used with the `read' builtin (read -p). One of
the reasons I added it in 2014 was in response to requests to use the
prompt expansions with read -p.

Bash can't know at expansion time whether the user intends to use the
expanded value with readline (read -e) or not. It's up to the user to
differentiate the cases.

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

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