+** Initial mode and state config
+- Use =normal= as the default state but exclude some special modes.
+- Bind =[escape]= to =normal= mode. This only works on GUI Emacs. If need to work on Terminal, shoudl also bind =(kbd
+ "<ESC>)=, but this will make the combined key =M-= not wor.
+- Not alias =insert= state to =emacs= state, as it break some vi's feature in insert mode, such as column edit. Instead,
+ here add a advice function to change the sate as emacs when enter insert mode, but this is only limited in some
+ certain modes.
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (defvar my-mode-list-to-use-emacs-as-insert '(emacs-lisp-mode org-mode eshell-mode lisp-interaction-mode)
+ "The mode in this list will consider insert state as emacs state by adding `advice-add' below.")
+
+ (defvar my-modes-use-emacs-init '(emacs-lisp-mode org-mode lisp-interaction-mode eshell-mode text-mode)
+ "The mode in this list will use emacs sate as a initial evil state.")
+
+ (with-eval-after-load "evil"
+ (setq evil-default-state 'normal)
+ ;; (defalias 'evil-inset-mode 'evil-emacs-state)
+ (define-key evil-emacs-state-map [escape] 'evil-normal-state)
+ ;; (define-key evil-emacs-state-map (kbd "<ESC>") 'evil-normal-state)
+ (dolist (mode my-modes-use-emacs-init) (evil-set-initial-state mode 'emacs))
+ (advice-add 'evil-insert-state :after (lambda (&optional arg)
+ (when (memq major-mode my-mode-list-to-use-emacs-as-insert)
+ (evil-emacs-state)))))
+
+
+#+END_SRC
+
+** state key mapping
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (with-eval-after-load "evil"
+ (define-key evil-normal-state-map (kbd "C-SPC") 'mode-line-other-buffer)
+ (define-key evil-normal-state-map (kbd "C-;") 'previous-multiframe-window)
+ (evil-define-key 'emacs eshell-mode-map (kbd "C-;") 'previous-multiframe-window))
+#+END_SRC
+
+** face attribute
+Let the search highlight persistent, https://stackoverflow.com/questions/25768036/emacs-evil-non-incremental-search-and-persistent-highlighting/34252236
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (evil-select-search-module 'evil-search-module 'evil-search)
+
+ (with-eval-after-load "evil"
+ (define-key evil-normal-state-map "\\" nil)
+ (define-key evil-normal-state-map "\\\\" #'evil-ex-nohighlight))
+#+END_SRC
+* Evil-escape
+[[https://github.com/syl20bnr/evil-escape][evil-escape]], escape from anything with customizable key sequence.
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package evil-escape