GNU bug report logs - #18263
occur-edit-mode can lose its text properties

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Yuriy Pitometsu <pitometsu <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Wrong type argument: markerp, nil
Date: Thu, 14 Aug 2014 00:28:57 +0300

[Message part 1 (text/plain, inline)]

On pure Emacs:
open some buffer M-s-o for occur
then e for occur-edit-mode, then M-x replace-regexp [ ^I]+ RET SPC RET
;; try to replace excess spaces or tabs by just one space symbol in matched
strings

Error in minibuffer => Wrong type argument: markerp, nil
OS X, Emacs 24.3

-- 
  Best regards,
        Yuriy Pitomets

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Message #8 received at 18263 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Yuriy Pitometsu <pitometsu <at> gmail.com>
Cc: 18263 <at> debbugs.gnu.org
Subject: Re: bug#18263: Wrong type argument: markerp, nil
Date: Wed, 13 Aug 2014 21:22:32 -0400

Yuriy Pitometsu wrote:

> On pure Emacs:
> open some buffer M-s-o for occur
> then e for occur-edit-mode, then M-x replace-regexp [ ^I]+ RET SPC RET
> ;; try to replace excess spaces or tabs by just one space symbol in matched
> strings
>
> Error in minibuffer => Wrong type argument: markerp, nil

The short answer is that replace-regexp removes the text properties that
occur-edit-mode relies on.

Message #13 received at 18263 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Yuriy Pitometsu <pitometsu <at> gmail.com>
Cc: 18263 <at> debbugs.gnu.org
Subject: Re: bug#18263: Wrong type argument: markerp, nil
Date: Wed, 13 Aug 2014 21:29:55 -0400

Glenn Morris wrote:

> The short answer is that replace-regexp removes the text properties that
> occur-edit-mode relies on.

I guess no-one expected you to edit the start of the line (the line
number prefix that is not part of the actual source buffer).
Maybe it should be read-only like the header line is
(though then you would still get an error trying to replace-regexp).
Or displayed using an overlay?

Message #16 received at 18263 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Yuriy Pitometsu <pitometsu <at> gmail.com>
Cc: 18263 <at> debbugs.gnu.org
Subject: Re: bug#18263: occur-edit-mode can lose its text properties
Date: Thu, 19 Aug 2021 17:41:31 +0200

Yuriy Pitometsu <pitometsu <at> gmail.com> writes:

> On pure Emacs:
> open some buffer M-s-o for occur
> then e for occur-edit-mode, then M-x replace-regexp [ ^I]+ RET SPC RET
> ;; try to replace excess spaces or tabs by just one space symbol in matched
> strings
>
> Error in minibuffer => Wrong type argument: markerp, nil

Glenn Morris <rgm <at> gnu.org> writes:

> I guess no-one expected you to edit the start of the line (the line
> number prefix that is not part of the actual source buffer).
> Maybe it should be read-only like the header line is
> (though then you would still get an error trying to replace-regexp).
> Or displayed using an overlay?

In Emacs 28, the stuff at the start of the line (that shouldn't be
removed) has been made read-only, so it looks like somebody fixed this
in the years since it was reported, so I'm closing this bug report.  If
there's still issues in this area, please respond to the debbugs address
and we'll reopen.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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