emacs之配置3，键盘和鼠标设置

emacsConfig/kbd-mouse-setting.el

 ;;强制TAB键使用空格
 (setq-default indent-tabs-mode nil)

 ;M-i执行tab-to-tab-stop
 (setq tab-width
 c-basic-offset )

 ;鼠标滚轮，默认的滚动太快，这里改为3行
 (defun up-slightly () (interactive) (scroll-up ))
 (defun down-slightly () (interactive) (scroll-down ))
 (global-set-key [mouse-] 'down-slightly)
 (global-set-key [mouse-] 'up-slightly)

 ;重新绑定C-z到撤销
 (global-set-key (kbd "C-z") 'undo)

 ;mac下设置command为alt
 (if (eq system-type 'darwin)
     (setq mac-option-key-is-meta nil
         mac-command-key-is-meta t
         mac-command-modifier 'meta
         mac-option-modifier 'none)
 )