Emacs extension: Jump and marker like in Vim

Jumar, standing for jump and marker like in Vim, is an extension of Emacs which gives more rich "marker" environment.

http://recordit.co/jLoUv7oeW0

• Emacs 24 or later
• ERFI (https://github.com/kenoss/erfi)
• Helm (If one use visualizer. Recent version is prefered.)

Jumar is not available on MELPA but we'll apply to add.

Download ERFI and jumar. Add to load-path:

(add-to-list 'load-path "/path/to/erfi/lisp")
(add-to-list 'load-path "/path/to/jumar")

Add the following code to your .emacs file:

(require 'jumar)
(require 'jumar-dwim)
(require 'helm)  ; if you use visualizer.

;; If one needs highlight the line after jump.
(require 'erfi-emacs)
(add-hook 'jumar-post-jump-hook 'erfi-emacs-hl-turn-on-until-next-command)

(jumar-dwim-use-preconfigured-scheme 'list+history)
(jumar-init)

;; As you like.
(define-key global-map (kbd "C-'")     'jumar-dwim-add-marker)
(define-key global-map (kbd "C-\"")    'jumar-dwim-jump-current)
(define-key global-map (kbd "C-,")     'jumar-dwim-jump-backward)
(define-key global-map (kbd "C-.")     'jumar-dwim-jump-forward)
(define-key global-map (kbd "C-x C-'") 'helm-jumar-dwim-jumarkers)

;; As you need.  Advise jump commands, like `find-tag' and `gtags-find-tag',
;; to add jumarker before/after jump.
(jumar-dwim-advise-jump-command-to-add-jumarker 'find-tag)
; (jumar-dwim-advise-jump-command-to-add-jumarker 'elisp-slime-nav-find-elisp-thing-at-point)

For the first time, reload .emacs (or restart Emacs) and evaluate the following:

(save-excursion
  (goto-char (window-start))
  (dotimes (i 10)
    (call-interactively 'jumar-dwim-add-marker)
    (forward-line 2)))

Then, invoking C-x C-' (helm-jumar-dwim-jumarkers) shows markers with helm interface. You can jump to the selected marker. You can peep marker with C-z (helm-execute-persistent-action).

You can jump without helm. C-. (jumar-dwim-jump-forward) is jump forward and C-, (jumar-dwim-jump-backward) is backward. C-' (jumar-dwim-add-marker) add new marker.

Try to add new marker in other buffer, kill that buffer and invoke C-x C-'. You can see "Killed buffer" at the last of list of markers. Jumar automatically manage "unavailable markers". Jumping to that one try to reopen file and revive marker positions in that buffer. By default, jumar-dwim-jump-forward and jumar-dwim-jump-backward skip unavailable markers except for the case that is the last/first one.