Re: Auto Fill Comments

[Christopher Dimech <dimech@gmx.com>]

Have started doing something, but am quite stuck now.  Somehow I need to
fill the list for the three options: (1) autofill comments; (2) autofill
buffer; and (3) disable autofill.

(setq autofill-list
   '( ))

(defun break-line-cycle (@n)
   (interactive "p")
   ;; Sets property 'state', an integer. Possible values are any index
   ;; to autofill-list.
   (let ($fill-selector $cnd-before $cnd-after)
      (setq $cnd-before
         (if (get 'break-line-cycle 'state)
           (get 'break-line-cycle 'state)
           0) )
      (setq $cnd-after
         (% (+ $cnd-before (length font-list) @n) (length autofill-list)))
      (setq $fill-selector (nth $cnd-after autofill-list))
      (put 'break-line-cycle 'state $cnd-after)))

> Sent: Tuesday, November 24, 2020 at 8:52 PM
> From: "Christopher Dimech" <dimech@gmx.com>
> To: daniela-spit@gmx.it
> Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Re: Auto Fill Comments
>
> Looks quite nice.  I could try to cycle through three states:
> (1) auto fill comments; (2) auto fill buffer; and (3) disable
> auto fill.
>
> Anybody done this before?
>
> Regards
> Christopher
>
>
>
> > Sent: Tuesday, November 24, 2020 at 8:42 PM
> > From: daniela-spit@gmx.it
> > To: "Christopher Dimech" <dimech@gmx.com>
> > Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > Subject: Re: Auto Fill Comments
> >
> > This is what I use.  I find no good reason to use c-mode-common-hook.
> >
> > (defun break-comment ()
> >    (setq-local comment-auto-fill-only-comments t)
> >    (auto-fill-mode 1))
> >
> > (add-hook 'sh-mode-hook          #'break-comment)
> > (add-hook 'fortran-mode-hook     #'break-comment)
> > (add-hook 'emacs-lisp-mode-hook  #'break-comment)
> > (add-hook 'texinfo-mode-hook     #'break-comment)
> >
> > (add-hook 'c-mode-hook       #'break-comment)
> > (add-hook 'c++-mode-hook     #'break-comment)
> > (add-hook 'awk-mode-hook     #'break-comment)
> > (add-hook 'R-mode-hook       #'break-comment)
> > (add-hook 'octave-mode-hook  #'break-comment)
> > (add-hook 'text-mode-hook    #'break-comment)
> >
> >
> > > Sent: Tuesday, November 24, 2020 at 6:05 PM
> > > From: "Christopher Dimech" <dimech@gmx.com>
> > > To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > > Subject: Auto Fill Comments
> > >
> > > Would this be good enough  to Auto Fill Comments in c language.
> > > What can I use for Auto Fill Comments for other languages, e.g.
> > > fortran, elisp, c++, texinfo, bash, awk, org, R.
> > >
> > > ;; Apply Auto Fill to comments but not code in programming language modes.
> > > (add-hook 'c-mode-common-hook
> > >    (lambda ()
> > >       (auto-fill-mode 1)
> > >       (set
> > >          (make-local-variable 'fill-nobreak-predicate)
> > >          (lambda ()
> > >             (not (eq (get-text-property (point) 'face)
> > >                     'font-lock-comment-face)))) ))
> > >
> > >
> > >
> >
>

---------------------
Christopher Dimech
General Administrator - Naiad Informatics - GNU Project (Geocomputation)
- Geophysical Simulation
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