Files
nixos-config/modules/user/emacs/lib/line-wrapping-and-numbers.el
2025-07-29 15:54:01 -05:00

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EmacsLisp

;;; line-wrapping-and-numbers.el --- basic line wrapping management library -*- lexical-binding: t; no-byte-compile: t; -*-
;;
;; Author: Emmet K <https://gitlab.com/librephoenix>
;; Maintainer: Emmet K <https://gitlab.com/librephoenix>
;; Source: https://github.com/librephoenix/nixos-config
;; Source: https://gitlab.com/librephoenix/nixos-config
;; Source: https://codeberg.org/librephoenix/nixos-config
;;
;;; Commentary:
;;
;; A basic line wrapping management library.
;; Turns on line wrapping for programming modes,
;; and turns it off for thinks like markdown and org.
;;
;;; Code:
;; Line wrapping management
(defun activate-writing-lines ()
"Stop truncating lines in current buffer."
(interactive)
(setq-local truncate-lines nil)
(setq visual-line-mode t)
(display-line-numbers-mode 0))
(defun activate-coding-lines ()
"Truncate lines in current buffer."
(interactive)
(setq-local truncate-lines t)
(setq visual-line-mode nil)
(display-line-numbers-mode 1))
(defun activate-coding-lines-without-numbers ()
"Truncate lines in current buffer."
(interactive)
(setq-local truncate-lines t)
(setq visual-line-mode nil)
(display-line-numbers-mode 0))
(add-hook 'org-mode-hook 'activate-writing-lines)
(add-hook 'markdown-mode-hook 'activate-writing-lines)
(add-hook 'prog-mode-hook 'activate-coding-lines)
(add-hook 'treemacs-mode-hook 'activate-coding-lines-without-numbers)
(defun apply-proper-line-wrapping ()
"Apply proper line wrapping and visual line mode
settings according to whether or not the current
mode derives from `prog-mode`."
(if (derived-mode-p 'prog-mode)
(progn
(truncate-lines-on)
)
(progn
(truncate-lines-off)
(display-line-numbers-mode 0))))
(if (featurep 'git-timemachine)
(add-hook 'git-timemachine-mode-hook 'apply-proper-line-wrapping))
(provide 'line-wrapping-and-numbers)
;;; line-wrapping.el ends here