From: pietru@caramail.com
To: pietru@caramail.com
Cc: Help Gnu Emacs <help-gnu-emacs@gnu.org>
Subject: Re: Cycle that highlights whitespace and displays line-column numbers
Date: Fri, 29 Jan 2021 20:59:31 +0100 [thread overview]
Message-ID: <trinity-cee13662-b1b0-42cd-8372-3dbe8306680e-1611950371932@3c-app-mailcom-bs16> (raw)
In-Reply-To: <trinity-c398a2d0-977a-4e64-894e-4c5172c4223b-1611939397622@3c-app-mailcom-bs02>
Am quite unsure how to use the commands for displaying column and
line numbers: line-number-mode, column-number-mode, display-line-numbers-mode.
> Sent: Saturday, January 30, 2021 at 4:56 AM
> From: pietru@caramail.com
> To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Cycle that highlights whitespace and displays line-column numbers
>
> 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)) ))
>
>
>
>
>
prev parent reply other threads:[~2021-01-29 19:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 16:56 Cycle that highlights whitespace and displays line-column numbers pietru
2021-01-29 19:59 ` pietru [this message]
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