Emacs选项卡的全局配置

所以这取决于你工作的模式,这会限制你得到的答案。在大多数情况下,我建议您不要反对它—对我来说,缩进行为是emacs最好的特性之一。但是,您确实需要花时间为自己定制它。

• c制表符始终缩进
• c-句法缩进

我建议您通过自定义界面设置这些。如果使用“M-x customize group RET C”,则可以看到C模式的各种设置。

也许emacs对于您的文件处于错误的模式。你可以试试“M-x基本模式”,看看你是否喜欢那里的行为。

;; * Inserted "tabs" to be expanded into two spaces. Emacs stubbornly
;;   sticks to eight, no matter what I do.

;; * Tabs (i.e. real \t characters) to be represented on screen by two
;;   spaces.

(setq-default tab-width 2)


;; * Pressing TAB should insert a tab at the cursor rather than indent
;;   the entire line. Currently, I press TAB anywhere and Emacs
;;   destroys all whitespace at the start of the line; this is the
;;   most infuriating thing so far.

(setq-default indent-tabs-mode t)

(mapcar (lambda (hooksym)
          (add-hook hooksym
                    (lambda ()
                      (kill-local-variable 'indent-tabs-mode)
                      (kill-local-variable 'tab-width)
                      (local-set-key (kbd "TAB") 'self-insert-command))))

        '(
          c-mode-common-hook

          ;; add other hook functions here, one for each mode you use :-(
          ))

;; How to know the name of the hook function?  Well ... visit a file
;; in that mode, and then type C-h v major-mode RET.  You'll see the
;; mode's name in the *Help* buffer (probably on the second line).

;; Then type (e.g.) C-h f python-mode; you'll see blather about the
;; mode, and (hopefully) somewhere in there you'll see (again e.g.)
;; "This mode runs the hook `python-mode-hook', as the final step
;; during initialization."

(defun insert-tab ()
  "self-insert-command doesn't seem to work for tab"
  (interactive)
  (insert "\t"))
(setq indent-line-function 'insert-tab)  ;# for many modes
(define-key c-mode-base-map [tab] 'insert-tab) ;# for c/c++/java/etc.
(setq-default tab-width 2)