Re: setting emacs variables

[Gerald A Winters]

Olivier,

Thanks for the reply.  Your code below showed me
how to customize the indentation along with
the help facility.

However, according to the emacs help this should work:

(setq c-basic-offset 4)

but it doesn't -- it has absolutely no effect that I can tell.
If you understand why the above statement won't work I'd
like to know.  But regardless thanks for the help.

--jerry

> 
> Gerald A Winters wrote:
> 
>  > I am a C-programmer and am using v20.7.  I would like to
>  > change the default indentation level from "2" to "4" when
>  > in C-mode.  I have a couple manuals and both indicate to
>  > change the emacs varibale "c-indent-level".  However, neither
>  > of these works in my .emacs file:
>  >
>  > (setq c-indent-level 4)
>  > (setq-default c-indent-level 4)
>  >
>  > I would be *very* grateful if someone can suggest a solution.
>  > thanks.
>  >
>  > --jerry
>  >
>  >
>  > _______________________________________________
>  > Help-gnu-emacs mailing list
>  > Help-gnu-emacs@gnu.org
>  > http://mail.gnu.org/mailman/listinfo/help-gnu-emacs
>  >
>  >
> 
> Emacs uses the cc-mode to fontify C files, and to indent too. Indentation
> is based on the 'tab-width' variable, which can be redifined for each
> mode. The C structure's indentation is related to
> c-basic-offset variable and an offset for the different part of the 
> structure. In order to have more
> precise informations try M-x hell RET i RET C-s 'CC mode', section 
> Customizing indentation and try this in your .emacs file :
> 
> 
>     (setq tab-width 4)
>     ;; this will make sure spaces are used instead of tabs
>     (setq indent-tabs-mode nil)
>     (setq c-tab-always-indent t)
> 
>     ;; Highlight matching parantheses
>     (show-paren-mode 1)
> 
>     ;;--------------------------
>     ;; indentation
>     ;; For more information : M-x info cc-mode
>     (setq c-comment-only-line-offset      0);; -1000 to have it at the
> beginning of the line
>     (setq c-basic-offset                  3);; general value for
> indentation on wich every arg of the
>     ;; c-set-offset will be based on
>     ;; + mean c-basic-offset*1
>     (c-set-offset   'arglist-close        0);; 0 mean c-basic-offset*0
>     (c-set-offset   'arglist-intro       '+);; function parameters
>     (c-set-offset   'substatement-open    0);; indentation of braces for
> if, for, while
>     (c-set-offset   'substatement        '+);; indentation of a statement
> (each line of a function)
>     (c-set-offset   'case-label          '+);; indentation for the label
> in a switch-case structure
>     (c-set-offset   'defun-block-intro   '+);; indentation of variable
> def for a function (no tab)
> 
>     (c-set-offset   'statement            0);; indentation of the
> function's body (the first line
>     ;; starts at this point)
>     ;;--------------------------
> 
> The wright way to do this is to mak a new hook for the c-mode. You can 
> see the documentation about hooks : M_x help RET i -RET and look for 
> hook description.
> -- 
> -----------------------------------------------------------------
> Olivier PIERRAT                   Tel.   : +33 (0) 03 90 40 00 00
> ALPLOG                            Port.  : +33 (0) 06 76 41 16 00
> Immeuble le Platon                mailto : o.pierrat@alplog.fr
> 67400 ILLKIRCH                    mailto : o.pierrat@free.fr
> 
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