c indentation - replace spaces with tabs

c indentation - replace spaces with tabs

[Micha Feigin]

Is it possible to make emacs automatically replace every 8 consecutive
spaces with a tab? (this can actually be done in indentation time
instead of write time if I menage to get the indentations right).
I am looking to get the same functionality gotten in vim for:
set ts=8
set sw=4
For example, when a line is indented 12 spaces it would be replaced with
[tab]4*[space]

Re: c indentation - replace spaces with tabs

[Eli Zaretskii]

> Date: Sun, 7 Dec 2003 15:57:31 +0200
> From: Micha Feigin <michf@post.tau.ac.il>
> 
> Is it possible to make emacs automatically replace every 8 consecutive
> spaces with a tab?

You want "M-x tabify-region RET" (mark the region before that).

Re: c indentation - replace spaces with tabs

[Alan Mackenzie]

Micha Feigin <michf@post.tau.ac.il> wrote on Sun, 7 Dec 2003 15:57:31 +0200:
> Is it possible ....

_Anything_ is possible in Emacs.  Almost.  :-)

> .... to make emacs automatically replace every 8 consecutive
> spaces with a tab? (this can actually be done in indentation time
> instead of write time if I menage to get the indentations right).

If you're happy about tabs being used in any mode, put the following in
your emacs:

(setq indent-tabs-mode t)

.  If you just want it in C Mode, use the C Mode hook:

(defun mf-enable-indent-tabs ()
  (setq indent-tabs-mode t))
(add-hook 'c-mode-hook 'mf-enable-indent-tabs)

.  All the best!

-- 
Alan Mackenzie (Munich, Germany)
Email: aacm@muuc.dee; to decode, wherever there is a repeated letter
(like "aa"), remove half of them (leaving, say, "a").