Re: Better indentation for elisp

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

Sergey Mozgovoy <egnartsms@gmail.com> writes:

> Thierry Volpiatto-2 wrote
>> See: 
>> 
>> http://article.gmane.org/gmane.emacs.devel/155910/match=lisp+indent+function
>
> Thank you for response and the link.
>
> I guess you're sure that Emacs Lisp indentation is not so bad as to be
> worth the effort of introducing substantial changes.  OK, I agree
> that's probably my own censoriousness which bothers me, rather than
> Elisp indentation. :)
>
> However, please do note that aside from *flet*, there were some other
> examples.  I guess they don't annoy pretty much anyone except for me,
> too.
>
> Actually, what struck me the most was the indentation of constructs
> like this:
> *
> (let-like-macro (a 10
> 		           b 20
> 		           c 30)
>   ... BODY ...)
> *
> Well, this is actually a let-like construct, but bindings are not
> explicitly taken into additional parenthesis.  They are "unrolled".
>
> What I would want here is /flat/ indentation, but present Elisp
> indenting algorithm treats the binding list as a normal function call.
>
> Yeah, I agree that the easiest way to handle this would be to just
> give up and live with default indentation, or use some more
> conventional syntactic constructs.

Here my settings, if that help:

(eval-after-load "cl-indent.el"
  (let ((l '((flet ((&whole 4 &rest (&whole 1 &lambda &body)) &body))
             (cl-flet* . flet)
             (labels . flet)
             (cl-flet . flet)
             (cl-labels . flet)
             (cl-macrolet . flet))))
    (dolist (el l)
      (put (car el) 'common-lisp-indent-function
           (if (symbolp (cdr el))
               (get (cdr el) 'common-lisp-indent-function)
               (car (cdr el)))))))

(dolist (mode '(emacs-lisp-mode lisp-interaction-mode))
  (font-lock-add-keywords
   mode
   '(("(\\<\\(cl-flet[*]?\\|cl-labels\\|cl-macrolet\\)\\>" 1 font-lock-keyword-face)
     ("(\\<\\(cl-loop\\|cl-dolist\\)\\>" 1 font-lock-keyword-face))))

-- 
Thierry
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