* bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros")
@ 2018-01-06 5:29 Xu Chunyang
2018-01-06 9:10 ` Eli Zaretskii
0 siblings, 1 reply; 5+ messages in thread
From: Xu Chunyang @ 2018-01-06 5:29 UTC (permalink / raw)
To: 30001
'C-h S cl-letf' or (info "(cl) Modify Macros") has the following:
Note that `cl-letf' on `(point)' is not quite like a
`save-excursion', as the latter effectively saves a marker which
tracks insertions and deletions in the buffer.
but 'save-excursion' is no longer saving marker since Emacs 25.1
according to 'C-h f save-excursion'.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros")
2018-01-06 5:29 bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros") Xu Chunyang
@ 2018-01-06 9:10 ` Eli Zaretskii
2018-01-06 12:12 ` Stephen Berman
[not found] ` <m2efn3xj73.fsf@xuchunyang.me>
0 siblings, 2 replies; 5+ messages in thread
From: Eli Zaretskii @ 2018-01-06 9:10 UTC (permalink / raw)
To: Xu Chunyang; +Cc: 30001
> From: Xu Chunyang <mail@xuchunyang.me>
> Date: Sat, 06 Jan 2018 13:29:57 +0800
>
> 'C-h S cl-letf' or (info "(cl) Modify Macros") has the following:
>
> Note that `cl-letf' on `(point)' is not quite like a
> `save-excursion', as the latter effectively saves a marker which
> tracks insertions and deletions in the buffer.
>
> but 'save-excursion' is no longer saving marker since Emacs 25.1
> according to 'C-h f save-excursion'.
save-excursion doesn't save the _mark_, but it still saves a _marker_
that tracks point, as opposed to just the value of point at the moment
of the call.
Do you have a practical use case where the documentation is incorrect?
Thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread* bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros")
2018-01-06 9:10 ` Eli Zaretskii
@ 2018-01-06 12:12 ` Stephen Berman
2018-01-06 15:15 ` Eli Zaretskii
[not found] ` <m2efn3xj73.fsf@xuchunyang.me>
1 sibling, 1 reply; 5+ messages in thread
From: Stephen Berman @ 2018-01-06 12:12 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: Xu Chunyang, 30001
On Sat, 06 Jan 2018 11:10:00 +0200 Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Xu Chunyang <mail@xuchunyang.me>
>> Date: Sat, 06 Jan 2018 13:29:57 +0800
>>
>> 'C-h S cl-letf' or (info "(cl) Modify Macros") has the following:
>>
>> Note that `cl-letf' on `(point)' is not quite like a
>> `save-excursion', as the latter effectively saves a marker which
>> tracks insertions and deletions in the buffer.
>>
>> but 'save-excursion' is no longer saving marker since Emacs 25.1
>> according to 'C-h f save-excursion'.
>
> save-excursion doesn't save the _mark_, but it still saves a _marker_
> that tracks point, as opposed to just the value of point at the moment
> of the call.
It looks like the doc string of save-excursion contains a few typos:
Before Emacs 25.1, ‘save-excursion’ used to save the mark state.
To save the marker state as well as the point and buffer, use
^^^^^^ ^^^ ^^^^^^
‘save-mark-and-excursion’.
Shouldn't that be: "To save the mark state as well as point and the
buffer"?
Steve Berman
^ permalink raw reply [flat|nested] 5+ messages in thread* bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros")
2018-01-06 12:12 ` Stephen Berman
@ 2018-01-06 15:15 ` Eli Zaretskii
0 siblings, 0 replies; 5+ messages in thread
From: Eli Zaretskii @ 2018-01-06 15:15 UTC (permalink / raw)
To: Stephen Berman; +Cc: mail, 30001
> From: Stephen Berman <stephen.berman@gmx.net>
> Cc: Xu Chunyang <mail@xuchunyang.me>, 30001@debbugs.gnu.org
> Date: Sat, 06 Jan 2018 13:12:37 +0100
>
> Before Emacs 25.1, ‘save-excursion’ used to save the mark state.
> To save the marker state as well as the point and buffer, use
> ^^^^^^ ^^^ ^^^^^^
> ‘save-mark-and-excursion’.
>
> Shouldn't that be: "To save the mark state as well as point and the
> buffer"?
Of course. Thanks, fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <m2efn3xj73.fsf@xuchunyang.me>]
* bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros")
[not found] ` <m2efn3xj73.fsf@xuchunyang.me>
@ 2018-01-06 15:16 ` Eli Zaretskii
0 siblings, 0 replies; 5+ messages in thread
From: Eli Zaretskii @ 2018-01-06 15:16 UTC (permalink / raw)
To: Xu Chunyang; +Cc: 30001-done
> From: Xu Chunyang <mail@xuchunyang.me>
> Date: Sat, 06 Jan 2018 20:31:12 +0800
>
> > save-excursion doesn't save the _mark_, but it still saves a _marker_
> > that tracks point, as opposed to just the value of point at the moment
> > of the call.
>
> I see. Please close the bug report since it is simply my
> misunderstanding. Thanks.
Done.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2018-01-06 5:29 bug#30001: 27.0.50; Outdated info on save-excursion in (info "(cl) Modify Macros") Xu Chunyang
2018-01-06 9:10 ` Eli Zaretskii
2018-01-06 12:12 ` Stephen Berman
2018-01-06 15:15 ` Eli Zaretskii
[not found] ` <m2efn3xj73.fsf@xuchunyang.me>
2018-01-06 15:16 ` Eli Zaretskii
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