bug#18263: Wrong type argument: markerp, nil

bug#18263: Wrong type argument: markerp, nil

[Yuriy Pitometsu]

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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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bug#18263: Wrong type argument: markerp, nil

[Glenn Morris]

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.

bug#18263: Wrong type argument: markerp, nil

[Glenn Morris]

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?

bug#18263: occur-edit-mode can lose its text properties

[Lars Ingebrigtsen]

Yuriy Pitometsu <pitometsu@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@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