1 files changed, 0 insertions, 85 deletions

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-;;; reading.el --- minor mode for reading -*- lexical-binding: t; -*-
-
-;;; Code:
-
-(defgroup reading nil
-  "Group for Reading mode customizations."
-  :prefix "reading-"
-  :group 'convenience)
-
-(defcustom reading-vars '((indicate-empty-lines . nil)
-                          (indicate-buffer-boundaries . nil))
-  "Alist of variables to set in function `reading-mode'.
-The car of each cell is the variable name, and the cdr is the
-value to set it to."
-  :type '(alist :key-type variable
-                :value-type sexp))
-
-(defcustom reading-modes '((display-fill-column-indicator-mode . -1)
-                           (blink-cursor-mode . -1))
-  "Alist of modes to set in function `reading-mode'.
-The car of each cell is the function name, and the cdr is the
-value to call it with."
-  :type '(alist :key-type function
-                :value-type sexp))
-
-;;; Internal
-
-(defvar reading--remembered-template "reading--remembered-%s-value"
-  "The template passed to `format' for remembered modes and variables.")
-
-(defun reading--remember (things func)
-  "Apply FUNC to THINGS, remembering their previous value for later."
-  (declare (indent 1))
-  (unless (listp things)
-    (setq things (list things)))
-  (dolist (thing things)
-    (set (make-local-variable
-          (intern (format reading--remembered-template thing)))
-         (and (boundp thing)
-              (symbol-value thing)))
-    (funcall func thing)))
-
-(defun reading--recall (things func)
-  "Recall previously remembered THINGS by applying FUNC to them.
-FUNC should be a function with the signature (THING REMEMBERED-SETTING)."
-  (declare (indent 1))
-  (unless (listp things)
-    (setq things (list things)))
-  (dolist (thing things)
-    (with-demoted-errors "reading--recall: %S"
-      (let ((value (symbol-value
-                    (intern
-                     (format reading--remembered-template thing)))))
-        (funcall func thing value)))))
-
-;;; Mode
-
-;;;###autoload
-(defvar reading-mode-map (make-sparse-keymap)
-  "Keymap for `reading-mode'.")
-
-;;;###autoload
-(define-minor-mode reading-mode
-  "A mode for reading."
-  :lighter " Read"
-  (if reading-mode
-      ;; turn on
-      (progn
-        (reading--remember (mapcar #'car reading-vars)
-          (lambda (var)
-            (set (make-local-variable var)
-                 (cdr (assoc var reading-vars)))))
-        (reading--remember (mapcar #'car reading-modes)
-          (lambda (mode)
-            (funcall mode (cdr (assoc mode reading-modes))))))
-    ;; turn off
-    (reading--recall (mapcar #'car reading-vars)
-      (lambda (var orig-val)
-        (set (make-local-variable var) orig-val)))
-    (reading--recall (mapcar #'car reading-modes)
-      (lambda (mode orig-setting)
-        (funcall mode (if orig-setting +1 -1))))))
-
-(provide 'reading)
-;;; reading.el ends here