emacs autocomplete

安装emacs24,23以前比较麻烦，
emacs24
http://kanpe777.github.io/blog/2014/01/12/yum-install-emacs24-on-centos-6-dot-5/

因为24自带了list-packages

$ cd /etc/yum.repos.d  
 $ wget http://pj.freefaculty.org/EL/pjku.repo  
 $ rpm --import http://pj.freefaculty.org/EL/PaulJohnson-BinaryPackageSigningKey  
 $ yum install emacs  
 $ emacs -version  

m-x list-packages 

http://ergoemacs.org/emacs/emacs_package_system.html

安装插件

Install Packages  

This list is shown in package-menu-mode. In this mode, here's the most useful keys:  

【Enter ↵】 Describe the package under cursor. (describe-package)  
【i】 mark for installation. (package-menu-mark-install)  
【u】 unmark. (package-menu-mark-unmark)  
【d】 mark for deletion (removal of a installed package). (package-menu-mark-delete)  
【x】 for “execute” (start install/uninstall of marked items). (package-menu-execute)  
【r】 refresh the list from server. (package-menu-refresh) 

~/.emacs
为

(when (>= emacs-major-version 24)
  (require 'package)
  (package-initialize)
  (add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/") t)
  )

搜auto-complete

i x安装完之后发现 ~/.emacs.d/里面多了一些内容
~./.emacs
的内容为添加autocomplete的内容

(setq current-language-environment "UTF-8")
(setq default-input-method "chinese-py")
(setq locale-coding-system 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
(set-selection-coding-system 'utf-8)
(prefer-coding-system 'utf-8)


(when (>= emacs-major-version 24)
  (require 'package)
  (package-initialize)
  (add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/") t)
  )

(require 'auto-complete)
(require 'auto-complete-config)
(global-auto-complete-mode t)
(setq-default ac-sources '(ac-source-words-in-same-mode-buffers))
(add-hook 'emacs-lisp-mode-hook (lambda () (add-to-list 'ac-sources 'ac-source-symbols)))
(add-hook 'auto-complete-mode-hook (lambda () (add-to-list 'ac-sources 'ac-source-filename)))
(set-face-background 'ac-candidate-face "lightgray")
(set-face-underline 'ac-candidate-face "darkgray")
(set-face-background 'ac-selection-face "steelblue") ;;; 设置比上面截图中更好看的背景颜色
(define-key ac-completing-map "\M-n" 'ac-next)  ;;; 列表中通过按M-n来向下移动
(define-key ac-completing-map "\M-p" 'ac-previous)
(setq ac-auto-start 2)
(setq ac-dwim t)
(define-key ac-mode-map (kbd "M-TAB") 'auto-complete)