unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Christopher Dimech <dimech@gmx.com>
To: Help Gnu Emacs <help-gnu-emacs@gnu.org>
Subject: Separating colour and positioning functioning
Date: Mon, 8 Feb 2021 16:02:17 +0100	[thread overview]
Message-ID: <trinity-3f0971fe-5919-46d5-9e74-c8b1711f519a-1612796537578@3c-app-mailcom-bs01> (raw)

Have written a minor mode with part of the the code below and want to
modify tex-typeface-crucible so that the colour scheme is enabled when
the minor-mode is on.

Then one can apply supinf as an option

(defface colour-tex-cruc
  '( (default :inherit bold)
     ( ((class color) (min-colors 88) (background light))
       :foreground "#FF0000" )
     ( ((class color) (min-colors 88) (background dark))
       :foreground "#FF0000")
     (t :inherit font-lock-builtin-face) )
  "Typeface for tex keywords.")

(defconst crucible-tex-keywords
  `( (,(rx "\\" word-start (group (or "alpha" "beta")) word-end)
     (1 'colour-tex-cruc)) )
  "Fontification for letters and symbols.")

(defun supinf-disable-cruc (beg end)
  "Set typeface for text between BEG and END."
  (font-lock-default-unfontify-region beg end)
  (while (< beg end)
    (let ((next (next-single-property-change beg 'display nil end))
	  (prop (get-text-property beg 'display)))
      (if (and (eq (car-safe prop) 'raise)
	       (member (car-safe (cdr prop)) crucible-supinf-vshift)
	       (null (cddr prop)))
	  (put-text-property beg next 'display nil))
      (setq beg next))))

(defun tex-typeface-crucible ()
  "Font-lock setup for mathematical symbols."
  (font-lock-flush (point-min) (point-max))
  (if crucible-supinf-enable
      (progn
        (font-lock-add-keywords nil crucible-tex-keywords t)
        (font-lock-add-keywords nil supinf-font-lock-cruc t))
    (font-lock-remove-keywords nil crucible-tex-keywords)
    (supinf-disable-cruc (point-min) (point-max)))
  (font-lock-flush (point-min) (point-max)))




             reply	other threads:[~2021-02-08 15:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08 15:02 Christopher Dimech [this message]
2021-02-08 21:37 ` Separating colour and positioning functioning Emanuel Berg via Users list for the GNU Emacs text editor
2021-02-09  0:20   ` Christopher Dimech
2021-02-09  0:27   ` Christopher Dimech
2021-02-09  1:01     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-02-09  2:30       ` Christopher Dimech

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=trinity-3f0971fe-5919-46d5-9e74-c8b1711f519a-1612796537578@3c-app-mailcom-bs01 \
    --to=dimech@gmx.com \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).