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;;; info-edit.el --- Editing info files -*- lexical-binding:t -*-
;; Copyright (C) 1985-1986, 1992-2021 Free Software Foundation, Inc.
;; Maintainer: emacs-devel@gnu.org
;; Keywords: help
;; Obsolete-since: 24.4
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'info)
(defvar Info-edit-mode-hook nil
"Hook run when `Info-edit-mode' is activated.")
(make-obsolete-variable 'Info-edit-mode-hook
"editing Info nodes by hand is not recommended." "24.4")
(define-obsolete-variable-alias 'Info-edit-map 'Info-edit-mode-map "24.1")
(defvar Info-edit-mode-map (let ((map (make-sparse-keymap)))
(set-keymap-parent map text-mode-map)
(define-key map "\C-c\C-c" #'Info-cease-edit)
map)
"Local keymap used within `e' command of Info.")
(make-obsolete-variable 'Info-edit-mode-map
"editing Info nodes by hand is not recommended."
"24.4")
;; Info-edit mode is suitable only for specially formatted data.
(put 'Info-edit-mode 'mode-class 'special)
(define-derived-mode Info-edit-mode text-mode "Info Edit"
"Major mode for editing the contents of an Info node.
Like text mode with the addition of `Info-cease-edit'
which returns to Info mode for browsing."
(setq buffer-read-only nil)
(force-mode-line-update)
(buffer-enable-undo (current-buffer)))
(defun Info-edit ()
"Edit the contents of this Info node."
(interactive)
(Info-edit-mode)
(message "%s" (substitute-command-keys
"Editing: Type \\<Info-edit-mode-map>\\[Info-cease-edit] to return to info")))
(put 'Info-edit 'disabled "Editing Info nodes by hand is not recommended.
This feature will be removed in future.")
(defun Info-cease-edit ()
"Finish editing Info node; switch back to Info proper."
(interactive)
;; Do this first, so nothing has changed if user C-g's at query.
(and (buffer-modified-p)
(y-or-n-p "Save the file? ")
(save-buffer))
(Info-mode)
(force-mode-line-update)
(and (marker-position Info-tag-table-marker)
(buffer-modified-p)
(message "Tags may have changed. Use Info-tagify if necessary")))
(defvar ibuffer-help-buffer-modes)
;; Moved here from definition of ibuffer-help-buffer-modes to make
;; that variable customizable even though this code is obsolete. See
;; also Bug#30990.
(add-to-list 'ibuffer-help-buffer-modes 'Info-edit-mode)
(provide 'info-edit)
;;; info-edit.el ends here
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