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From: Eli Zaretskii <eliz@gnu.org>
To: Philipp <p.stephani2@gmail.com>
Cc: 31586@debbugs.gnu.org
Subject: bug#31586: 27.0.50; `frame-title-format' doesn't save match data
Date: Fri, 25 May 2018 09:31:02 +0300	[thread overview]
Message-ID: <83muwo9rh5.fsf@gnu.org> (raw)
In-Reply-To: <m24liwoh02.fsf@gmail.com> (message from Philipp on Thu, 24 May 2018 23:55:57 +0200)

> From: Philipp <p.stephani2@gmail.com>
> Date: Thu, 24 May 2018 23:55:57 +0200
> 
> emacs -Q -eval "(setq frame-title-format '(\"\" (:eval (string-match \".\" \"a\"))))"
> 
> Then go to the first character in the scratch buffer (M-<), and run
> 
> M-% a RET b RET
> 
> The first time you attempt to replace something, Emacs will signal an
> error:
> 
> perform-replace: Args out of range: #<buffer *scratch*>, 0, 1

And this is an Emacs bug because...?  The :eval expression is yours,
so it's IMO your responsibility to protect it as needed.





  reply	other threads:[~2018-05-25  6:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-24 21:55 bug#31586: 27.0.50; `frame-title-format' doesn't save match data Philipp
2018-05-25  6:31 ` Eli Zaretskii [this message]
2018-05-26 20:58 ` Stefan Monnier
2018-05-27 16:20   ` Eli Zaretskii
2018-05-27 19:32     ` Stefan Monnier
2018-05-28  1:40       ` Drew Adams
2018-05-28  1:46         ` Stefan Monnier
2018-07-30  4:34 ` bug#31586: Binbin YE
2018-07-30 14:19   ` bug#31586: Eli Zaretskii
2022-05-06 17:29 ` bug#33697: 26.1; file-truename messes with match data Lars Ingebrigtsen
2022-05-06 17:49   ` bug#31586: " Juri Linkov

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