1 ;; refer to https://github.com/aaronbieber/dotfiles/blob/master/configs/emacs.d/lisp/init-linum.el
2 ;;; Stuff for line numbers.
4 '((t (:inherit linum :weight bold :underline "#555")))
5 "The current line number.")
7 (defun my-linum-get-format-string ()
8 (let* ((width (max 4 (1+ (length (number-to-string
9 (count-lines (point-min) (point-max)))))))
10 (format (concat "%" (number-to-string width) "d "))
11 (current-line-format (concat "%-" (number-to-string width) "d ")))
12 (setq my-linum-format-string format)
13 (setq my-linum-current-line-format-string current-line-format)))
15 (defvar my-linum-current-line-number 0)
17 (setq linum-format 'my-linum-relative-line-numbers)
19 (defun my-linum-relative-line-numbers (line-number)
20 (let* ((offset (abs (- line-number my-linum-current-line-number)))
21 (linum-display-value (if (= 0 offset)
22 my-linum-current-line-number
24 (format-string (if (= my-linum-current-line-number line-number) my-linum-current-line-format-string my-linum-format-string))
25 (face (if (= my-linum-current-line-number line-number) 'linum-current 'linum)))
26 (propertize (format format-string linum-display-value) 'face face)))
28 (defadvice linum-update (around my-linum-update)
29 (let ((my-linum-current-line-number (line-number-at-pos)))
31 (ad-activate 'linum-update)
33 ;;; Set up relative line numbering to mimic `:set number relativenumber`.
35 (add-hook 'linum-before-numbering-hook 'my-linum-get-format-string)