font-lock with functions

font-lock with functions

[wael-zwaiter]

I have a function called fkeyword-match and want to call font-lock on it.
Can anyone explain to me how font-lock works and what to do?

Re: font-lock with functions

[wael-zwaiter]

The following works well, but I am concerned that "my-font-lock"
is a bit of a hack and could do with improvement

(defconst my-font-lock
  (append
      nil
      '( (my-match
	  (1 (my-bigfont (match-beginning 0)) append))) )
  "Description.")

(defun bigfont-enable ()
  "Enables a typeface for displaying tex commands."
  (setq supinf-signal t)
  (font-lock-add-keywords nil my-font-lock t))

(add-hook 'my-mode-hook #'bigfont-enable)


> Sent: Friday, February 12, 2021 at 1:02 AM
> From: wael-zwaiter@gmx.com
> To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: font-lock with functions
>
> I have a function called fkeyword-match and want to call font-lock on it.
> Can anyone explain to me how font-lock works and what to do?
>
>
>
>
>

Re: font-lock with functions

[Emanuel Berg via Users list for the GNU Emacs text editor]

wael-zwaiter wrote:

> (defconst my-font-lock
>   (append
>       nil
>       '( (my-match
> 	  (1 (my-bigfont (match-beginning 0)) append))) )
>   "Description.")

Uhm, what is this intended to do?

Appending nil to a list doesn't do anything

  (append nil '(1 2 3)) ; (1 2 3)

because nil is actually the empty list, try `eval' these

  nil
  ()
  '()
  `()
  (list)
  (append nil () '() `() (list))

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