Skip to content

Add bc-maybe-set that only sets if there's no nearby crumb #5

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
snan wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Add bc-maybe-set that only sets if there's no nearby crumb #5

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 34 additions & 0 deletions breadcrumb.el
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,10 @@ The list is (Bookmark1 Bookmark2 ...) where each Bookmark is (TYPE FILENAME . PO
"The current bookmark. `bc-next' and `bc-previous' would use this as the starting point."
)

(defvar *bc-threshold* 240
"Threshold for how many characters counts as being too close to an existing bookmark for `bc-maybe-set'."
)

(defvar *bc-bookmark-just-added* nil
"Flag indicates a bookmark has just been added. `bc-next' and `bc-previous' use this to determine whether to increment or decrement."
)
Expand Down Expand Up @@ -114,6 +118,13 @@ The list is (Bookmark1 Bookmark2 ...) where each Bookmark is (TYPE FILENAME . PO
))))
)

;;;###autoload
(defun bc-maybe-set ()
"Set a bookmark at the current buffer and current position, unless there is a bookmark nearby already."
(interactive)
(if (bc-nearby-bookmarks-p) nil (and (bc-set) t))
)

;;;###autoload
(defun bc-previous ()
"Jump to the previous bookmark."
Expand Down Expand Up @@ -278,6 +289,29 @@ INDEX the bookmark index (0-based) into the bookmark queue."
bookmark))
)

(defun bc-local-bookmarks ()
"Get all local bookmarks."
(let* ((buffer-type (bc-get-buffer-type))
(buffer-filename (bc-get-buffer-filename buffer-type)))
(cl-remove-if
(lambda (bookmark)
(not (and (equal buffer-type (bc-bookmark-type bookmark))
(equal buffer-filename (bc-bookmark-filename bookmark))))
)
*bc-bookmarks*))
)

(defun bc-nearby-bookmarks-p ()
"Return true if there are any local bookmarks within *bc-threshold* characters from the current location."
(and
(let ((position (bc-get-buffer-position (bc-get-buffer-type))))
(cl-remove-if
(lambda (bookmark)
(> (abs (- position (bc-bookmark-position bookmark))) *bc-threshold*))
(bc-local-bookmarks)))
t)
)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Bookmark current position functions

Expand Down