emacs
sudo apt-get install cscope
;ace-jump-mode
(autoload
'ace-jump-mode "ace-jump-mode" t) (eval-after-load "ace-jump-mode" '(ace-jump-mode-enable-mark-sync)) (define-key global-map (kbd "C-c SPC") 'ace-jump-mode) (define-key global-map (kbd "C-x SPC") 'ace-jump-mode-pop-mark)
;switch-window