+** Ag
+install =ag=, =the-silver-searcher= by homebrew on mac
+#+BEGIN_SRC sh
+brew install the-silver-searcher
+#+END_SRC
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package ag
+ :ensure t)
+#+END_SRC
+
+** Local Variable hooks
+[[https://www.emacswiki.org/emacs/LocalVariables][LocalVariables]], use =hack-local-variables-hook=, run a hook to set local variable in mode hook
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ ;; make Emacs run a new "local variables hook" for each major mode
+ (add-hook 'hack-local-variables-hook 'run-local-vars-mode-hook)
+
+ (defun run-local-vars-mode-hook ()
+ "Run a hook for the major-mode after the local variables have been processed."
+ (run-hooks (intern (concat (symbol-name major-mode) "-local-vars-hook"))))
+
+ ;; (add-hook 'c++-mode-local-vars-hook #'sd/c++-mode-local-vars)
+#+END_SRC
+
+** Table
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (add-hook 'text-mode-hook 'table-recognize)
+#+END_SRC
+
+** url-download
+To download file in =elisp=, best is =url-copy-file=, here refer [[http://stackoverflow.com/questions/4448055/download-a-file-with-emacs-lisp][download-a-file-with-emacs-lisp]] using =url-retrieve-synchronously= wrapping
+as a http download client tool
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (defun sd/download-file (&optional url download-dir download-name)
+ (interactive)
+ (let ((url (or url
+ (read-string "Enter download URL: ")))
+ (download-dir (read-directory-name "Save to (~/Downloads): " "~/Downloads" "~/Downloads" 'confirm' nil)))
+ (let ((download-buffer (url-retrieve-synchronously url)))
+ (save-excursion
+ (set-buffer download-buffer)
+ ;; we may have to trim the http response
+ (goto-char (point-min))
+ (re-search-forward "^$" nil 'move)
+ (forward-char)
+ (delete-region (point-min) (point))
+ (write-file (concat (or download-dir
+ "~/Downloads/")
+ (or download-name
+ (car (last (split-string url "/" t))))))))))
+#+END_SRC
+
+** Elscreen
+Fix one elscreen issue when startup emacs https://github.com/knu/elscreen/issues/6
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package elscreen
+ :ensure t
+ :init
+ (setq elscreen-tab-display-control nil)
+ :config
+ (elscreen-start)
+ (set-face-attribute 'elscreen-tab-current-screen-face nil :foreground "black" :background "yellow")
+ (set-face-attribute 'elscreen-tab-other-screen-face nil :foreground "black" :background "disabledControlTextColor" :underline nil)
+ ;; (global-unset-key (kbd)); M-TAB switch screen
+ (global-set-key (kbd "s-`") '(lambda () (interactive) (elscreen-goto 0)))
+ (dotimes (i 8)
+ (global-set-key (kbd (concat "s-" (number-to-string (+ i 1))))
+ `(lambda () (interactive) (elscreen-goto ,(+ i 1)))))
+ (global-set-key (kbd "s-t") 'elscreen-create)
+ (global-set-key (kbd "s-n") 'elscreen-next)
+ (global-set-key (kbd "s-p") 'elscreen-previous))
+#+END_SRC
+
+* Dired
+** Dired bindings
+=C-o= is defined as a global key for window operation, here unset it in dired mode
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (defun sd/dired-key-map ()
+ "My keybindings for dired"
+ (interactive)
+ ;; these two prefix are used globally
+ (define-key dired-mode-map (kbd "C-o") nil)
+ (define-key dired-mode-map (kbd "M-s") nil)
+ ;; toggle hidden files
+ (define-key dired-mode-map (kbd "H") 'dired-omit-mode)
+ ;; scroll
+ (define-key dired-mode-map (kbd "SPC") 'scroll-up-command)
+ (define-key dired-mode-map (kbd "DEL") 'scroll-down-command)
+ (define-key dired-mode-map (kbd "j") 'diredp-next-line)
+ (define-key dired-mode-map (kbd "k") 'diredp-previous-line)
+ (define-key dired-mode-map (kbd "g") 'dired-goto-file)
+ ;; (define-key dired-mode-map (kbd "S-SPC") 'scroll-down-command)
+ ;; jump to fil/dirs
+ (define-key dired-mode-map (kbd "f") 'dired-isearch-filenames)
+ ;; subdir
+ ;; i dired-maybe-insert-subdir
+ ;; o dired-find-file-other-window (switch to other window)
+ ;; O dired-display-file
+ (define-key dired-mode-map (kbd "G") 'ido-dired)
+ (define-key dired-mode-map (kbd "c") 'sd/dired-new-file)
+ (define-key dired-mode-map (kbd "h") 'dired-summary)
+ (define-key dired-mode-map (kbd "r") 'revert-buffer)
+ (define-key dired-mode-map (kbd "l") 'dired-display-file)
+ (define-key dired-mode-map [C-backspace] 'dired-up-directory)
+ (define-key dired-mode-map (kbd "?") 'describe-mode)
+ (define-key dired-mode-map (kbd "z") #'sd/dired-get-size)
+ (define-key dired-mode-map (kbd "C-d") 'dired-kill-subdir)
+ (define-key dired-mode-map (kbd "M-d") 'dired-kill-subdir)
+ (define-key dired-mode-map (kbd "J") 'diredp-next-subdir)
+ (define-key dired-mode-map (kbd "TAB") 'diredp-next-subdir)
+ (define-key dired-mode-map (kbd "K") 'diredp-prev-subdir)
+ (define-key dired-mode-map (kbd "O") 'dired-display-file)
+ (define-key dired-mode-map (kbd "I") 'other-window)
+ (define-key dired-mode-map (kbd "o") 'other-window))
+
+ (use-package dired
+ :config
+ (require 'dired-x)
+ ;; also load dired+
+ (use-package dired+
+ :ensure t
+ :init (setq diredp-hide-details-initially-flag nil))
+
+ (setq dired-omit-mode t)
+ (setq dired-omit-files (concat dired-omit-files "\\|^\\..+$"))
+ (add-hook 'dired-mode-hook (lambda ()
+ (sd/dired-key-map)
+ (dired-omit-mode))))
+
+ (defadvice dired-summary (around sd/dired-summary activate)
+ "Revisied dired summary."
+ (interactive)
+ (dired-why)
+ (message
+ "Δ: d-delete, u-ndelete, x-punge, f-ind, o-ther window, R-ename, C-opy, c-create, +new dir, r-evert, /-filter, v-iew, l-ist, z-Size, h-summary, ?-help"))
+
+ (defun sd/dired-high-level-dir ()
+ "Go to higher level directory"
+ (interactive)
+ (find-alternate-file ".."))
+#+END_SRC
+
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (defun sd/dired-new-file-and-open ()
+ "Create a new file in dired mode"
+ (interactive)
+ (call-interactively 'find-file))
+
+ (defun sd/dired-new-file (file)
+ "Create a new file called FILE.
+ If FILE already exists, signal an error."
+ (interactive
+ (list (read-file-name "Create file: " (dired-current-directory))))
+ (let* ((expanded (expand-file-name file)))
+ (if (file-exists-p expanded)
+ (error "Cannot create file %s: file exists" expanded))
+ (write-region "" nil expanded t)
+ (when expanded
+ (dired-add-file expanded)
+ (dired-move-to-filename))))
+
+ ;; copied from abo-abo's config
+ (defun sd/dired-get-size ()
+ (interactive)
+ (let ((files (dired-get-marked-files)))
+ (with-temp-buffer
+ (apply 'call-process "/usr/bin/du" nil t nil "-sch" files)
+ (message
+ "Size of all marked files: %s"
+ (progn
+ (re-search-backward "\\(^[ 0-9.,]+[A-Za-z]+\\).*total$")
+ (match-string 1))))))
+#+END_SRC
+
+** disable ido when dired new file
+When create a new directory, I want to disalbe =ido= completion. see [[http://stackoverflow.com/questions/7479565/emacs-ido-mode-and-creating-new-files-in-directories-it-keeps-changing-the-dire][here]]. Thhis code snippets copied
+from [[https://emacs.stackexchange.com/questions/13713/how-to-disable-ido-in-dired-create-directory/13795#13795?newreg%3Ddb17c20f7af3490fb11cf15f1d888e9e][How to disable IDO in ‘dired-create-directory’]]
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (defun mk-anti-ido-advice (func &rest args)
+ "Temporarily disable IDO and call function FUNC with arguments ARGS."
+ (interactive)
+ (let ((read-file-name-function #'read-file-name-default)
+ (completing-read-function #'completing-read-default))
+ (if (called-interactively-p 'any)
+ (call-interactively func)
+ (apply func args))))
+
+ (defun mk-disable-ido (command)
+ "Disable IDO when command COMMAND is called."
+ (advice-add command :around #'mk-anti-ido-advice))
+
+ (defun mk-anti-ido-no-completing-advice (func &rest args)
+ "Temporarily disable IDO and call function FUNC with arguments ARGS."
+ (interactive)
+ (let ((read-file-name-function #'read-file-name-default)
+ ;; (completing-read-function #'completing-read-default)
+ )
+ (if (called-interactively-p 'any)
+ (call-interactively func)
+ (apply func args))))
+
+ (defun mk-disable-ido-no-completing (command)
+ "Disable IDO when command COMMAND is called."
+ (advice-add command :around #'mk-anti-ido-no-completing-advice))
+#+END_SRC
+
+Disalble =ido= when new a directory or file in =dired= mode
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ ;; call the function which you want to disable ido
+ (mk-disable-ido 'dired-create-directory)
+ (mk-disable-ido 'sd/dired-new-file-and-open)
+ (mk-disable-ido 'sd/dired-new-file)
+ (mk-disable-ido-no-completing 'dired-goto-file)
+#+END_SRC
+
+** Dired open with
+=!= =dired-do-shell-command=
+=&= =dired-do-async-shell-command=
+here on Mac, just use "open" commands to pen =.pdf=, =.html= and image files
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (setq dired-guess-shell-alist-user
+ '(("\\.pdf\\'" "open" "okular")
+ ("\\.\\(?:djvu\\|eps\\)\\'" "evince")
+ ("\\.\\(?:jpg\\|jpeg\\|png\\|gif\\|xpm\\)\\'" "open")
+ ("\\.\\(?:xcf\\)\\'" "gimp")
+ ("\\.csv\\'" "libreoffice")
+ ("\\.tex\\'" "pdflatex" "latex")
+ ("\\.\\(?:mp4\\|mkv\\|avi\\|rmvb\\|flv\\|ogv\\)\\(?:\\.part\\)?\\'" "mplayer")
+ ("\\.\\(?:mp3\\|flac\\)\\'" "rhythmbox")
+ ("\\.html?\\'" "open")
+ ("\\.dmg\\'" "open")
+ ("\\.cue?\\'" "audacious")))
+
+
+ (defun sd/dired-start-process (cmd &optional file-list)
+ (interactive
+ (let ((files (dired-get-marked-files
+ t current-prefix-arg)))
+ (list
+ (unless (eq system-type 'windows-nt)
+ (dired-read-shell-command "& on %s: "
+ current-prefix-arg files))
+ files)))
+
+ (if (eq system-type 'windows-nt)
+ (dolist (file file-list)
+ (w32-shell-execute "open" (expand-file-name file)))
+ (let (list-switch)
+ (start-process
+ cmd nil shell-file-name
+ shell-command-switch
+ (format
+ "nohup 1>/dev/null 2>/dev/null %s \"%s\""
+ cmd
+ ;; (if (and (> (length file-list) 1)
+ ;; (setq list-switch
+ ;; (cadr (assoc cmd ora-dired-filelist-cmd))))
+ ;; (format "%s %s" cmd list-switch)
+ ;; cmd)
+ (mapconcat #'expand-file-name file-list "\" \""))))))
+#+END_SRC
+
+** dired-hacks
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package dired-hacks-utils
+ :ensure t
+ :defer t)
+#+END_SRC
+
+** dired-narrow
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ ;;narrow dired to match filter
+ (use-package dired-narrow
+ :ensure t
+ :commands (dired-narrow)
+ :bind (:map dired-mode-map
+ ("/" . dired-narrow)))
+#+END_SRC
+
+* Ibuffer
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (global-set-key (kbd "s-b") 'ibuffer)
+
+ (with-eval-after-load 'ibuffer
+ (define-key ibuffer-mode-map (kbd "C-o") nil)
+ (define-key ibuffer-mode-map (kbd "j") 'ibuffer-forward-line)
+ (define-key ibuffer-mode-map (kbd "k") 'ibuffer-backward-line)
+ (define-key ibuffer-mode-map (kbd "r") 'ibuffer-update)
+ (define-key ibuffer-mode-map (kbd "g") 'ibuffer-jump-to-buffer)
+ (define-key ibuffer-mode-map (kbd "h") 'sd/ibuffer-summary))
+
+ (defun sd/ibuffer-summary ()
+ "Show summary of keybindings in ibuffer mode"
+ (interactive)
+ (message
+ "Β: m|u - (un)mark, /-filter, //-remove filter, t, RET, g, k, S, D, Q; q to quit; h for help"))
+#+END_SRC
+
+* Completion
+** company mode and company-statistics
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package company
+ :ensure t
+ :diminish company-mode
+ :init (setq company-idle-delay 0.1)
+ (setq company-selection-wrap-around t)
+ :config
+ (define-key company-active-map (kbd "M-n") nil)
+ (define-key company-active-map (kbd "M-p") nil)
+ (define-key company-active-map (kbd "C-n") #'company-select-next)
+ (define-key company-active-map (kbd "C-p") #'company-select-previous)
+ ;; should map both (kbd "TAB") and [tab],https://github.com/company-mode/company-mode/issues/75
+ (define-key company-active-map (kbd "TAB") #'company-complete-selection)
+ (define-key company-active-map [tab] #'company-complete-selection)
+ (global-company-mode)
+ ;; magig-commit is text-modeh
+ (setq company-global-modes '(not org-mode magit-status-mode text-mode eshell-mode)))
+
+ (use-package company-statistics
+ :ensure t
+ :config
+ (company-statistics-mode))
+#+END_SRC
+
+** YASnippet
+*** yasnippet
+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+ (use-package yasnippet