From: pietru@caramail.com
To: Help Gnu Emacs <help-gnu-emacs@gnu.org>
Subject: Cycle that highlights whitespace and displays line-column numbers
Date: Fri, 29 Jan 2021 17:56:37 +0100 [thread overview]
Message-ID: <trinity-c398a2d0-977a-4e64-894e-4c5172c4223b-1611939397622@3c-app-mailcom-bs02> (raw)
I want to cycle through whitespace highlighting functionality, but I am
not getting very good behavior while looping. I would be grateful if
people could help me improve the code.
(defvar-local dfvl-highlight-chars-state nil)
(defun cycle-highlight-chars ()
"Cycle though character highlighting (tabs and trailing spaces)."
(interactive)
(when (eq dfvl-highlight-chars-state nil)
(require 'whitespace)
(setq whitespace-style '(face tab-mark tabs trailing)) )
(pcase dfvl-highlight-chars-state
(2 (whitespace-mode 0) ; [#A] Disable emacs modes
(display-line-numbers-mode 0)
(setq line-number-mode nil)
(setq column-number-mode nil)
(ruler-mode 1) ; [#B] Enable emacs modes
(message "%s" "Enable: Ruler only")
(setq-local dfvl-highlight-chars-state 3))
(3 (ruler-mode 0) ; [#C]
(whitespace-mode 0)
(setq line-number-mode nil)
(setq column-number-mode nil)
(display-line-numbers-mode 0)
(message "%s" "Disable: Space highlight & frame measure")
(setq-local dfvl-highlight-chars-state 1))
(_ (whitespace-mode 1) ; [#D]
(ruler-mode 1)
(setq line-number-mode 1)
(setq column-number-mode 1)
(display-line-numbers-mode 1)
(message "%s" "Enable: Space highlight & frame measure")
(setq-local dfvl-highlight-chars-state 2)) ))
next reply other threads:[~2021-01-29 16:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 16:56 pietru [this message]
2021-01-29 19:59 ` Cycle that highlights whitespace and displays line-column numbers pietru
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