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Re: Customizing C Indentation
From: |
Rodrigo González del Cueto |
Subject: |
Re: Customizing C Indentation |
Date: |
Tue, 14 Apr 2015 14:45:14 -0700 (PDT) |
User-agent: |
G2/1.0 |
I was finally able to customize the indentation to do what I wanted. I had some
trouble with nested blocks. Apparently the basic-offset (2), kept accumulating
within each nested block, offsetting them by more than they should.
I guess my solution is far from elegant, but it works!
I set arglist-intro and arglist-close to use my edk-c-lineup-calls function.
Here is the code:
(defun indent-edk-func-call ()
(save-excursion
(progn
(re-search-forward "[a-zA-Z][a-zA-Z0-9]+ *(" (c-point 'eol) 'move)
(if (match-string 0)
(progn
;;(message "Matched:(%s), (%s), (%s)" (match-string 0)
(match-string 1) (match-string 2))
(goto-char (match-beginning 0))
(current-column))
nil))))
(defun edk-c-lineup-calls (langelem)
;; lineup stream operators
(save-excursion
(let* ((relpos (cdr langelem))
(curcol (progn (goto-char relpos)
(current-column)))
(indent-size (indent-edk-func-call)))
(progn
;;(message "Indentation pos:(%s),(%s)" indent-size curcol)
(if (> indent-size 0)
(if (> curcol 2)
(+ indent-size 2 (- curcol))
indent-size)
(progn
;;(message "+Indentation pos:(%s),(%s)" indent-size curcol)
'+))))))
On Monday, April 13, 2015 at 5:52:49 PM UTC-5, Rodrigo González del Cueto wrote:
> Hey all,
>
> I hope you could help me figure out how to customize Emacs to indent code in
> the following way.
>
> I'm working on an EDK related project. And the EDK code standards state the
> following:
>
> "Subsequent lines of multi-line function calls should line up one or two tab-
> stops from the beginning of the function name."
>
> Example:
>
> Status = gRT->GetVariable(
> NORMAL_SETUP_NAME,
> &gEfiNormalSetupGuid,
> NULL,
> &VarSize,
> &SystemConfiguration
> );
>
> So given a function call, the arglist-intro offset, should make reference to
> the position of the first character of the function being called, and from
> there, go up an indentation level.
>
> I've read the Emacs documentation, and I only understood how to indent in
> relation to the previous line's indentation level. But I haven't been able to
> understand how to move within the previous line's content.
>
> -Rodrigo