类似这篇文章写的不多，为了避免以后大家转来转去而忽略了写文章的时间，这些特别加上是2014年6月28日，省的对不上一些软件的版本（下文中有些“最新”的说法就对应这个时间）。如果转发的时候能够加上我老顾的原文链接就更好了：）
还是在2008~2010年的时候，比较粉Emacs，然后花了很多时间在上面，编程效率的确高了，但是在上面花的时间也不少。2010年底的时候，放弃Emacs，而是选用所有支持emacs key的IDE，比如Eclipse，NetBean，VS等，说到底Emacs的编程效率最主要就体现在emacs
key上，而直接用Emacs的话，各种插件的版本冲突解决和配置要花开发人员不少时间，而使用现代IDE，既能享受emacs key的快捷，又能省去Emacs配置和麻烦，何乐而不为。
但是最近在树莓派II上开发一些嵌入式（主要是读取各种传感器，然后通过网络传给服务器）应用，通过我的主机SSH连接树莓派II，而且考虑到效能，已经不使用树莓派II上raspberrypi的界面，那么只能在控制台下进行开发，所以不得不重新拾起emacs这个IDE。说实话，做了12年多的各种技术的应用，最近是刚开始学习嵌入式的开发，生命不止、学习不止：）
花了大半天，总算在处理了各种版本问题后，把开发环境搭建起来了，下面简单记录一下。
首先，Emacs的配置文件在~/.emacs，所有插件在~/.emacs.d/lisp/。
整个环境使用软件的版本。
- Emacs 23.4.1，raspberrypi自带。
- cscope-15.7a，raspberrypi自带，但是没有cscope-indexer和xcscope.el，奇怪，可能只是raspberrypi是这样。
- cscope-15.8a，下载，只解压，然后把cscope-indexer加上执行权限然后复制到/usr/bin中，把xcsope.el复制到~/.emacs.d/lisp/。
- ecb-2.40，下载，这个没得选，解压后放到~/.emacs.d/lisp/ecb中。
- cedet-1.0.1，下载，不要用1.1，避免了还要修改ecb的版本检查，?解压后放到~/.emacs.d/lisp/cedet中。
- linum.el，下载最新的，放到~/.emacs.d/lisp/。?
- session.el，下载最新的，放到~/.emacs.d/lisp/。?
- ?color-theme.el，下载最新的，放到~/.emacs.d/lisp/。?
- session-2.3.a，下载，解压到~/.emacs.d/lisp/。
?然后把以上所有的*.el都编译成*.elc，用过Emacs的都直到为啥要做这个，其中ecb和cedet是单独用make编译的。其他都用emacs的命令编译：? emacs -batch
-f batch-byte-compile *.el?。但即使编译了成了.elc，在树莓派上的速度还是很慢，不过也合理。
能把上面搞定，然后就差.emacs这个文件的配置了。我的开发需要是C/C++，以C为主。下面是详细的配置：
;; Nomral setting
(setq default-major-mode ‘text-mode)
(global-font-lock-mode t)
(auto-image-file-mode t)
(transient-mark-mode t)
(show-paren-mode t)
(column-number-mode t)
(tool-bar-mode nil)
(setq-default make-backup-files nil)
(mouse-avoidance-mode ‘animate)
;; Autorevert stuff
(autoload ‘auto-revert-mode "autorevert" nil t)
(autoload ‘turn-on-auto-revert-mode "autorevert" nil nil)
(autoload ‘global-auto-revert-mode "autorevert" nil t)
;; Load session
(require ‘session)
;; Load linum
(require ‘linum)
;; load color-theme
(require ‘color-theme)
;; Load xcscope
;; Load cedet
(load-file "~/.emacs.d/lisp/cedet/common/cedet.elc")
(global-ede-mode 1)
(ede-cpp-root-project "sensor_worker" :file "~/workspace/c/sensor_worker/Makefile")
(semantic-load-enable-code-helpers)
(global-srecode-minor-mode 1)
(defun my-indent-or-complete ()
(interactive)
(if (looking-at "//>")
(hippie-expand nil)
(indent-for-tab-command)
)
(setq hippie-expand-try-functions-list
‘(
senator-try-expand-semantic
try-expand-dabbrev
try-expand-dabbrev-visible
try-expand-dabbrev-all-buffers
try-expand-dabbrev-from-kill
try-expand-list
try-expand-list-all-buffers
try-expand-line
try-expand-line-all-buffers
try-complete-file-name-partially
try-complete-file-name
try-expand-whole-kill
)
;; C/C++ setting
(require ‘cc-mode)
(setq c-basic-offset 4)
(c-set-offset ‘inline-open 0)
(c-set-offset ‘friend ‘-)
(defun my-c-mode-common-hook()
(setq tab-width 4)
(setq indent-tabs-mode nil)
(setq tab-stop-list ‘(4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80))
(define-key c-mode-base-map [(tab)] ‘my-indent-or-complete)
(define-key c-mode-base-map [(ctrl tab)] ‘semantic-ia-complete-symbol-menu)
(define-key c-mode-base-map [(f9)] ‘compile)
(setq c-macro-shrink-window-flag t)
(setq c-macro-preprocessor "cpp")
(setq c-macro-cppflags " ")
(setq c-macro-prompt-flag t)
(setq hs-minor-mode t)
(setq abbrev-mode t)
(c-set-style "user")
(hl-line-mode t)
(add-hook ‘c-mode-common-hook ‘my-c-mode-common-hook)
(setq auto-mode-alist (cons ‘("//.h$" . c++-mode) auto-mode-alist))
;; Load ecb
(add-to-list ‘load-path "~/.emacs.d/lisp/ecb")
(require ‘ecb)
(global-set-key [f12] ‘ecb-activate)
(global-set-key [C-f12] ‘ecb-deactivate)
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won‘t work right.
‘(ecb-options-version "2.40"))
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won‘t work right.
)
(setq default-major-mode ‘text-mode)
(global-font-lock-mode t)
(auto-image-file-mode t)
(transient-mark-mode t)
(show-paren-mode t)
(column-number-mode t)
(tool-bar-mode nil)
(setq-default make-backup-files nil)
(mouse-avoidance-mode ‘animate)
(setq x-select-enable-clipboard t)
(autoload ‘auto-revert-mode "autorevert" nil t)
(autoload ‘turn-on-auto-revert-mode "autorevert" nil nil)
(autoload ‘global-auto-revert-mode "autorevert" nil t)
(global-auto-revert-mode 1)
(add-to-list ‘load-path "~/.emacs.d/lisp")
(require ‘session)
(add-hook ‘after-init-hook ‘session-initialize)
(require ‘linum)
(global-linum-mode t)
(setq linum-format "%4d \u2502 ")
(require ‘color-theme)
(color-theme-hober)
(require ‘xcscope)
(load-file "~/.emacs.d/lisp/cedet/common/cedet.elc")
(global-ede-mode 1)
(ede-cpp-root-project "sensor_worker" :file "~/workspace/c/sensor_worker/Makefile")
(semantic-load-enable-code-helpers)
(global-srecode-minor-mode 1)
(global-set-key [(f5)] ‘speedbar)
(interactive)
(if (looking-at "//>")
(hippie-expand nil)
(indent-for-tab-command)
)
)
(autoload ‘senator-try-expand-semantic "senator")
‘(
senator-try-expand-semantic
try-expand-dabbrev
try-expand-dabbrev-visible
try-expand-dabbrev-all-buffers
try-expand-dabbrev-from-kill
try-expand-list
try-expand-list-all-buffers
try-expand-line
try-expand-line-all-buffers
try-complete-file-name-partially
try-complete-file-name
try-expand-whole-kill
)
)
(require ‘cc-mode)
(setq c-basic-offset 4)
(c-set-offset ‘inline-open 0)
(c-set-offset ‘friend ‘-)
(c-set-offset ‘substatement-open 0)
(setq tab-width 4)
(setq indent-tabs-mode nil)
(setq tab-stop-list ‘(4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80))
(define-key c-mode-base-map [(tab)] ‘my-indent-or-complete)
(define-key c-mode-base-map [(ctrl tab)] ‘semantic-ia-complete-symbol-menu)
(define-key c-mode-base-map [(f9)] ‘compile)
(setq c-macro-shrink-window-flag t)
(setq c-macro-preprocessor "cpp")
(setq c-macro-cppflags " ")
(setq c-macro-prompt-flag t)
(setq hs-minor-mode t)
(setq abbrev-mode t)
(c-set-style "user")
(hl-line-mode t)
)
(add-hook ‘c++-mode-common-hook ‘my-c-mode-common-hook)
(setq auto-mode-alist (cons ‘("//.cpp$" . c++-mode) auto-mode-alist))
(add-to-list ‘load-path "~/.emacs.d/lisp/ecb")
(require ‘ecb)
(global-set-key [f12] ‘ecb-activate)
(global-set-key [C-f12] ‘ecb-deactivate)
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won‘t work right.
‘(ecb-options-version "2.40"))
(custom-set-faces
;; custom-set-faces was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file should contain only one such instance.
;; If there is more than one, they won‘t work right.
)
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给树莓派IIraspberrypi安装emacs+ecb+cedet+session+color-theme+cscope+linum