diff options
Diffstat (limited to 'lisp/simple.el')
| -rw-r--r-- | lisp/simple.el | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/lisp/simple.el b/lisp/simple.el index 1080757f7d2..b7a24f4f970 100644 --- a/lisp/simple.el +++ b/lisp/simple.el @@ -365,7 +365,6 @@ Other major modes are defined by comparison with this one." (define-key map ">" 'end-of-buffer) (define-key map "<" 'beginning-of-buffer) (define-key map "g" 'revert-buffer) - (define-key map "z" 'kill-this-buffer) map)) (put 'special-mode 'mode-class 'special) @@ -1887,9 +1886,10 @@ as an argument limits undo to changes within the current region." ;; so, ask the user whether she wants to skip the redo/undo pair. (let ((equiv (gethash pending-undo-list undo-equiv-table))) (or (eq (selected-window) (minibuffer-window)) - (setq message (if undo-in-region - (if equiv "Redo in region!" "Undo in region!") - (if equiv "Redo!" "Undo!")))) + (setq message (format "%s%s!" + (if (or undo-no-redo (not equiv)) + "Undo" "Redo") + (if undo-in-region " in region" "")))) (when (and (consp equiv) undo-no-redo) ;; The equiv entry might point to another redo record if we have done ;; undo-redo-undo-redo-... so skip to the very last equiv. @@ -6961,6 +6961,32 @@ See also `normal-erase-is-backspace'." (defvar vis-mode-saved-buffer-invisibility-spec nil "Saved value of `buffer-invisibility-spec' when Visible mode is on.") +(define-minor-mode read-only-mode + "Change whether the current buffer is read-only. +With prefix argument ARG, make the buffer read-only if ARG is +positive, otherwise make it writable. If buffer is read-only +and `view-read-only' is non-nil, enter view mode. + +Do not call this from a Lisp program unless you really intend to +do the same thing as the \\[toggle-read-only] command, including +possibly enabling or disabling View mode. Also, note that this +command works by setting the variable `buffer-read-only', which +does not affect read-only regions caused by text properties. To +ignore read-only status in a Lisp program (whether due to text +properties or buffer state), bind `inhibit-read-only' temporarily +to a non-nil value." + :variable buffer-read-only + (cond + ((and (not buffer-read-only) view-mode) + (View-exit-and-edit) + (make-local-variable 'view-read-only) + (setq view-read-only t)) ; Must leave view mode. + ((and buffer-read-only view-read-only + ;; If view-mode is already active, `view-mode-enter' is a nop. + (not view-mode) + (not (eq (get major-mode 'mode-class) 'special))) + (view-mode-enter)))) + (define-minor-mode visible-mode "Toggle making all invisible text temporarily visible (Visible mode). With a prefix argument ARG, enable Visible mode if ARG is |