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+;;; fixed-pitch.el --- Use fixed-pitch only in sensible buffers -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2020, Carl Steib
+;; Author: Carl Steib
+;; URL: https://github.com/cstby/fixed-pitch
+;; Version: 0.0.0
+;; Package-Requires: ((emacs "27.1"))
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;; This file is not part of Emacs.
+
+;;; Commentary:
+
+;; Provides a minor mode for using the fixed-pitch face.  Allows users to use a
+;; variable-pitch font as the default while still using fixed-pitch for code.
+
+;;; Code:
+
+(defun fixed-pitch-update-hooks (list)
+  "Adds `fixed-pitch-mode' to every hook in LIST."
+  (dolist (hook list)
+    (add-hook hook 'fixed-pitch-mode)))
+
+(defcustom fixed-pitch-whitelist-hooks '()
+  "List of hooks that should activate `fixed-pitch-mode'."
+  :type '(repeat symbol)
+  :group 'fixed-pitch
+  :set (lambda (var val)
+         (set-default var val)
+         (fixed-pitch-update-hooks val)))
+
+;;;###autoload
+(define-minor-mode fixed-pitch-mode
+  "Use monospace typeface in the appropriate context."
+  :lighter " fxd"
+  (if fixed-pitch-mode
+      (progn (buffer-face-set 'fixed-pitch))
+    (buffer-face-set)))
+
+(provide 'fixed-pitch)
+;;; fixed-pitch.el ends here