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Re: [Emacs-diffs] master c1b1801 1/2: Make atomic cell update in data ar
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From: |
Stefan Monnier |
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Subject: |
Re: [Emacs-diffs] master c1b1801 1/2: Make atomic cell update in data area. |
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Date: |
Mon, 29 Jul 2019 17:05:46 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
> AFAIU the advantage of atomic-change-group is with regard to
> undoing.
No, it uses undo internally, but that's about it.
The advantages are:
- In case an error occurs in the middle of the processing, you won't be
left with half of the change done. I.e. the same advantage as
inhibit-quit but extended to any *error*.
- it doesn't set inhibit-quit, so if some operation happens to inf-loop
in there, the user can still interrupt it with C-g.
Stefan