Questions tagged [save-excursion]
20 questions
11
votes
1 answer
`looking-back` performance
I have some code using (looking-back … (line-beginning-position)). Doc string of looking-back states that it's better to avoid this function because of slowness. I'm curious will following approach be faster?
(save-excursion
(goto-char…
Geradlus_RU
- 625
- 7
- 17
8
votes
2 answers
save-excursion doesn't restore the currently visible buffer?
From the save-excursion docstring:
Save point, mark, and current buffer; execute BODY; restore those things.
My understanding was that the restored buffer would again be visible following the evaluation of the body, but that appears not to be the…
ebpa
- 7,319
- 26
- 53
7
votes
4 answers
select text to end of line, without moving point
I often want to quickly mark everything from point to the end of line, leaving point at the same place.
I tried to write simple function for that purpose:
(defun mark-from-point-to-end-of-line ()
"Marks everything from point to end of line"
…
Geradlus_RU
- 625
- 7
- 17
5
votes
1 answer
(progn (scroll-up 1) (goto-char 0)) is different from (scroll-up 1) then (goto-char 0)
In any buffer, try to eval-expression the expression (scroll-up 1) and then eval (goto-char 0). The window scrolls up, then point is moved to the beginning of the buffer. Now, try eval-ing (progn (scroll-up 1) (goto-char 0)). Here, point is not…
jcarpenter2
- 227
- 1
- 6
5
votes
1 answer
save-excursion and find-function-at-point
The find-function-at-point command finds a function and displays its definition in the other window, while moving point to the other window as well.
I'd like to have a version of find-function-at-point that opens the function definition in the other…
Tianxiang Xiong
- 3,848
- 16
- 27
4
votes
2 answers
Why save-excursion doesn't save point position?
I have the following code:
(defun test-save-excursion ()
(interactive)
(let ((buffer "*test*")
(text "Lorem Ipsum is simply dummy text
Lorem Ipsum has |been the industry's standard dummy text
It was popularised in the 1960s"))
…
Andrii Tykhonov
- 452
- 2
- 13
3
votes
1 answer
Put “save-excursion” Outermost When Using Both “save-excursion” And “save-restriction”
I'm reading Emacs Lisp Intro by Robert J. Chassell.
In 6.1 The ‘save-restriction’ Special Form
when you use both ‘save-excursion’ and
‘save-restriction’, one right after the other, you should use
‘save-excursion’ outermost. If you write them in…
shynur
- 4,065
- 1
- 3
- 23
3
votes
2 answers
save-excursion does not work with `org-sort-entries`
Say we have a org buffer with content:
* top-level heading
some text $ # $ denote cursor
** heading 3
** heading 2
** heading 1
** heading 0
Now evaluate (save-excursion (org-sort-entries nil ?a)). The cursor goes to the beginning of…
Saddle Point
- 481
- 7
- 23
3
votes
2 answers
How to move point to the end of another buffer, using `with-current-buffer` and `goto-char`?
I'm trying to implement «effective append» for log buffer, e.g. if a point is at point-max position then insert text and move point to new point-max, otherwise append text and preserve point position.
I though this will be very trivial…
Geradlus_RU
- 625
- 7
- 17
2
votes
1 answer
Save excursion not working for dired-find-file-other-window
I wrote this function to basically bring my cursor back to the dired buffer, after opening the file in another window. This is so that I can scroll down the buffer, pressing o to keep previewing the files in the directory. However, after the…
Tian
- 288
- 1
- 8
2
votes
1 answer
How to refresh org file programatically
I am using spacemacs-light theme in Emacs and love it.
In my spacemacs-light theme, some org-files open with bullets not hidden though. In those cases I go to the top of the file and hit C-c C-c to refresh my org-file. And then I go back to where I…
Ugur
- 139
- 1
- 6
2
votes
1 answer
What's the point of `save-excursion` twice in `copy-to-buffer`?
Here is the official definition of copy-to-buffer in Emacs 26.1 (the doc string part is omitted for brevity)
(defun copy-to-buffer (buffer start end)
(interactive "BCopy to buffer: \nr")
(let ((oldbuf (current-buffer)))
(with-current-buffer…
nalzok
- 665
- 6
- 18
1
vote
0 answers
Does markdown-export have a bad interaction with save-excursion
I am trying to write an idle-timer to export my markdown file whenever I am idle. (I have the output loaded in a Chrome tab which is auto-reloading.)
I tried to do the following:
(defvar my--markdown-idle-timer nil)
(defvar…
Troy Daniels
- 487
- 2
- 13
1
vote
1 answer
Why does point move after executing this function from keybinding
I have the following line in my init.el:
(define-key
org-mode-map
(kbd "C-c C-p")
(lambda () (interactive) (org-publish-project "publish-website"))
)
The "publish-website" argument points to an element of my org-publish-project-alist. …
User12345
- 145
- 4
0
votes
0 answers
`run-python` cannot hide *Python* buffer
When running
(defun my/run-python ()
(interactive)
(let ((buf (current-buffer)))
(with-current-buffer buf
(save-mark-and-excursion
(run-python (python-shell-calculate-command) nil nil)
)
))
)
I…
phoxd
- 231
- 1
- 7