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From: Bart Schaefer <schaefer@brasslantern.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: Using "fc -ap" in zle-line-init confuses command recall
Date: Mon, 6 Nov 2023 15:36:17 -0800	[thread overview]
Message-ID: <CAH+w=7Z=ph59f3iWixNTgRE=0Sw_BwL9O5Tw8vooLAFctjrWvA@mail.gmail.com> (raw)

Easily reproduced:

zsh -f
% zle-line-init() { fc -ap /dev/null }
% zle -N zle-line-init
% echo This will vanish
This will vanish
(press up-arrow)
% zle -N zle-line-init
(press down-arrow)
% echo Try again
Try again
(press up-arrow)
% echo This will vanish

The command isn't actually lost, it's just not possible to recall it
until another command has been run.  Everything is "delayed" by one
entry.  Use of /dev/null is not significant, any file argument whether
empty or not will work.

I believe this also confuses the PS2 parser state (cmdstack?) but
haven't come up with a simple way to reproduce that.


                 reply	other threads:[~2023-11-06 23:37 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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