 ;;; 去tab化
 (defun my-untabify()
   "Replace TAB with whitespace."
+  (make-variable-buffer-local 'write-file-functions)
   (add-hook 'write-file-functions
             '(lambda()
                (save-excursion

       '(highlight-symbol-mode-on
         hs-minor-mode
         my-delete-trailing-space
         my-untabify
	 ))
    ;; makefile里面用TAB来标记命令，所以不能删除tab
    (if (not (or
              ;; no untabify in makefile

;; Copyright (C) 2011 Dylan.Wen

;; Author: Dylan.Wen <hhkbp2@gmail.com>
;; Time-stamp: <2013-07-23 17:40>

;; This file is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
