2

When we open bookmarks panel we see the following:

% Bookmark
- --------
  mark-1                         ~/work/file-1.txt
  mark-2                         ~/work/file-2.txt
  ...
  mark-n                         ~/work/file-n.txt

So, to open n-th file I need to click <Down> key n times, algorithm complexity O(n). Supposing, that n < 10, can we attach the keys from 0 to 9 to the appropriate bookmark? So it will look like this:

% Bookmark
- --------
0  mark-1                         ~/work/file-1.txt
1  mark-2                         ~/work/file-2.txt
  ...
9  mark-9                         ~/work/file-9.txt

When the user clicks the key <n>, the appropriate file is opened immediately. In this case the complexity becomes O(1) - the user needs to make 1 action.

Or widening the idea: the user can attach hotkeys to bookmarks, making the number of bookmarks pretty big:

% Bookmark
- --------
0  mark-1                         ~/work/file-1.txt
1  mark-2                         ~/work/file-2.txt
a  mark-a                         ~/work/file-a.txt
b  mark-b                         ~/work/file-b.txt
  ...
z  mark-9                         ~/work/file-z.txt
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5
  • A common approach for quickly getting to a specific bookmark is to use bookmark-jump (or some variation of that command) with a completion/narrowing framework like ivy, helm, or ido.
    – glucas
    Oct 15, 2015 at 15:10
  • Also not really an answer, but note that you can use a prefix argument to jump down n lines rather than repeating the down command. For example: C-8 C-n in the Bookmarks List buffer (or most other buffers) will jump down 8 lines.
    – glucas
    Oct 15, 2015 at 15:14
  • I don't know how to but should be possible with something like avy backend @abo-abo.
    – Kaushal Modi
    Oct 15, 2015 at 15:54
  • @kaushalmodi To go that route, I'd take a look at the avy-backed implementation of ace-link. That includes a number of commands to jump to "visible links" of various kinds. Should be fairly straightforward to add a variant for bookmarks in the list buffer. (Actually -- just use avy-goto-line....)
    – glucas
    Oct 15, 2015 at 18:11
  • @glucas "just use avy-goto-line" Duh, of course! :)
    – Kaushal Modi
    Oct 15, 2015 at 18:34

3 Answers 3

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4

Are you interested in using only the *Bookmark List* display to jump to bookmarks, or are you interested in jumping to them from any buffer?

If the former, you can bind the keys you want (0 to 9 or whatever) in bookmark-bmenu-mode-map to commands that jump to particular bookmarks or to, say, the Nth next bookmark. Or you can just define a command that jumps to the Nth next bookmark, where you provide N as the prefix arg.

For example:

(defun my-jump-to-nth-bookmark (n)
  "Jump to the Nth bookmark after point.
N is the numeric prefix argument."
  (interactive "p")
  (save-excursion
    (next-line n)
    (bookmark-jump (bookmark-bmenu-bookmark))))

But if you just want a quick way to get to the line of a particular bookmark (so you can hit RET there), then you can use C-s (or any of the other, search-related quick-access commands provided by various libraries) or SPC with a prefix arg N to move down N lines.

If the latter, you can bind keys in the global-map to commands that jump to specific bookmarks. Or you can just use bookmark-jump to jump to any bookmark, choosing the bookmark name using completion. If all of your bookmark names have a common prefix such as mark- (I would not recommend that, but that seems to be your case), then completion is as quick as TAB N, e.g., TAB 3.

The general command to jump to a bookmark is bookmark-jump. You can define your own command that jumps to a particular bookmark by passing bookmark-jump that bookmark name:

(defun my-bmk-jump-to-mark-3 ()
  "Jump to bookmark `mark-3'."
  (interactive)
  (bookmark-jump "mark-3"))

Note: Library Bookmark+ offers many more possibilities for using bookmarks than does vanilla Emacs. And as far as completion/narrowing for bookmark commands goes, no library offers as much as does Icicles. In particular, it extends what Bookmark+ offers in many ways.

BTW, your display of *Bookmark List* is wrong, in showing your proposed keys in the % column. That column is used for marking bookmarks (so you can act on them). It does not indicate key bindings. Or if you are proposing that it should show a key that jumps to the bookmark on that line, then you would need to rewrite the code that displays *Bookmark List* accordingly.

More importantly, you would need to establish a convention of association of keys with bookmark names, such as the rudimentary one you show (key 3 corresponds to bookmark name mark-3). You could certainly do that for your own use, but it would not be something that would be useful for others, IMO. Bookmarks take general names for a reason.

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1
  • I want it to be just in the buffer. It would be incorrect to have <9> key to open a buffer for me when I'm editing a file.
    – user4035
    Oct 15, 2015 at 18:30
3

Just to highlight another approach from the comments: you can use a library such as ace-jump or avy. These libraries are not specific to bookmarks, but provide a general way to jump to a specific location in the visible window.

For example, with avy you could use the command avy-goto-line. When invoked this command adds a number or character (depending on configuration) to each visible line. You can use that prefix to jump directly to a specific line.

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0

Not really a direct answer but you can use register:

(set-register ?e '(file . "~/.emacs"))
(set-register ?b '(file . "~/.bashrc"))
(set-register ?c '(file . "~/.emacs.d/lisp/custom.el"))

Then C-x r j give the list you wants

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