This is a change with respect to Emacs 21, and I don't think anyone
feels that it is necessary in practice, while some are against it. I
think it should be reverted.
I think it is just plain wrong to undo a revert.
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This is a change with respect to Emacs 21, and I don't think anyone
feels that it is necessary in practice, while some are against it. I
think it should be reverted.
I think it is just plain wrong to undo a revert.
We could introduce an option `revert-discard-undo'.
In my local Emacs hacks, I've fixed the inconsistency the other
way: revert doesn't throw away undo info any more.
That seems bizarre, but I guess we should consider it.
However, Emacs 22.0.990 still throws away undo when reverting dired
buffers :-(
This is a change with respect to
C-x d /tmp RET
M-! touch 00a RET
g -- Now yu should see a file named 00a
C-x C-q
undo -- Now you don't see the file 00a any more
The operation undone was the deletion of the old buffer contents and
insertion of the new contents. No wonder I turned off undo for that.
In my local Emacs hacks, I've fixed the inconsistency the other way: revert
doesn't throw away undo info any more.
That seems bizarre, but I guess we should consider it.
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It used to work in dired buffers.
That seems incredible. Deleting the whole text of a directory listing
and reading it again is an operation that cannot preserve undo data.
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It used to work in dired buffers.
That seems incredible. Deleting the whole text of a directory listing
and reading it again is an operation that cannot preserve undo data.
Yet, this is easy to reproduce. Invoke emacs 21 with -q, then
C-x d /tmp RET
M-! touch 00a RET
g -- Now yu should
Francesco Potorti` [EMAIL PROTECTED] writes:
it was useful when I updated a dired buffer with 'g' without looking at
it first, and wanted to look at its old status. Very handy in some
situations.
Handy if you know what you are doing, but potentially very confusing
and dangerous for the
it was useful when I updated a dired buffer with 'g' without looking at
it first, and wanted to look at its old status. Very handy in some
situations.
Handy if you know what you are doing, but potentially very confusing
and dangerous for the average/naive user.
The user had to toggle the
C-x d /tmp RET
M-! touch 00a RET
g -- Now yu should see a file named 00a
C-x C-q
undo -- Now you don't see the file 00a any more
The operation undone was the deletion of the old buffer contents and
insertion of the new contents. No wonder I turned off undo for that.
The
Glenn Morris [EMAIL PROTECTED] writes:
Otherwise, it seems there is something of a trend to disable undo all
over the place, for no real reason, then have to un-disable it when
someone complains.
This is true, but using undo in a dired buffer is a pretty dodgy thing
to do; it seems almost
It is normal that undo does not work across revert.
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