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bug#61091: 30.0.50; y-or-n-p clobbers match data
From: |
Eli Zaretskii |
Subject: |
bug#61091: 30.0.50; y-or-n-p clobbers match data |
Date: |
Fri, 27 Jan 2023 17:00:24 +0200 |
> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: rms@gnu.org, 61091@debbugs.gnu.org
> Date: Fri, 27 Jan 2023 15:38:14 +0100
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > y-or-n-p originally was implemented in C and was relatively simple.
> > Since then it was moved to Lisp and became a monster, see subr.el. It
> > is anyone's guess where in that code we clobber the match data.
>
> I see that the code calls `substitute-command-keys' which potentially
> changes match data.
Yes, that's also my prime suspect.