Variable: rectangle-mark-mode

rectangle-mark-mode is a buffer-local variable defined in rect.el.gz.

Documentation

Non-nil if Rectangle-Mark mode is enabled.

Use the command rectangle-mark-mode(var)/rectangle-mark-mode(fun) to change this variable.

View in manual

Probably introduced at or before Emacs version 24.4.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/rect.el.gz
;;;###autoload
(define-minor-mode rectangle-mark-mode
  "Toggle the region as rectangular.

Activates the region if it's inactive and Transient Mark mode is
on.  Only lasts until the region is next deactivated."
  :lighter nil
  (rectangle--reset-crutches)
  (when rectangle-mark-mode
    (advice-add 'region-beginning :around #'rectangle--region-beginning)
    (advice-add 'region-end :around #'rectangle--region-end)
    (add-hook 'deactivate-mark-hook
              (lambda () (rectangle-mark-mode -1)))
    (unless (region-active-p)
      (push-mark (point) t t)
      (message "Mark set (rectangle mode)"))))