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diff --git a/lisp/eshell/esh-toggle.el b/lisp/eshell/esh-toggle.el
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-;;; esh-toggle --- toggle to and from the *eshell* buffer
-
-;; Copyright (C) 1997, 1998 Mikael Sjödin (mic@docs.uu.se)
-
-;; Author: Mikael Sjödin <mic@docs.uu.se>
-;;         John Wiegley <johnw@gnu.org>
-;; Created: 19 Nov 1998
-;; Version: 2.0
-;; Keywords: processes
-;; X-URL: http://www.emacs.org/~johnw/eshell.html
-
-;; 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 2, 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 GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-
-;; Provides the command eshell-toggle which toggles between the
-;; *eshell* buffer and whatever buffer you are editing.
-;;
-;; This is done in an "intelligent" way.  Features are:
-;;
-;;  - Starts a eshell if non is existing.
-;;
-;;  - Minimum distortion of your window configuration.
-;;
-;;  - When done in the eshell-buffer you are returned to the same
-;;    window configuration you had before you toggled to the eshell.
-;;
-;;  - If you desire, you automagically get a "cd" command in the
-;;    eshell to the directory where your current buffers file exists;
-;;    just call eshell-toggle-cd instead of eshell-toggle.
-;;
-;;  - You can convinently choose if you want to have the eshell in
-;;    another window or in the whole frame.  Just invoke eshell-toggle
-;;    again to get the eshell in the whole frame.
-;;
-;; This file has been tested under Emacs 20.2.
-;;
-;; To use, call the functions `eshell-toggle' or `eshell-toggle-cd'.
-;; It's most helpful to bind these to a key.
-
-;;; Thanks to:
-
-;; Christian Stern <Christian.Stern@physik.uni-regensburg.de> for
-;; helpful sugestions.
-
-;;; User Variables:
-
-(defvar eshell-toggle-goto-eob t
-  "*If non-nil `eshell-toggle' moves point to end of Eshell buffer.
-When `eshell-toggle-cd' is called the point is always moved to the
-end of the eshell-buffer")
-
-(defvar eshell-toggle-automatic-cd t
-  "*If non-nil `eshell-toggle-cd' will send a \"cd\" to Eshell.
-If nil `eshell-toggle-cd' will only insert the \"cd\" command in the
-eshell-buffer.  Leaving it to the user to press RET to send the
-command to the eshell.")
-
-;;; User Functions:
-
-;;;###autoload
-(defun eshell-toggle-cd ()
-  "Calls `eshell-toggle' with a prefix argument.
-See the command `eshell-toggle'"
-  (interactive)
-  (eshell-toggle t))
-
-;;;###autoload
-(defun eshell-toggle (make-cd)
-  "Toggles between the *eshell* buffer and the current buffer.
-With a prefix ARG also insert a \"cd DIR\" command into the eshell,
-where DIR is the directory of the current buffer.
-
-Call twice in a row to get a full screen window for the *eshell*
-buffer.
-
-When called in the *eshell* buffer returns you to the buffer you were
-editing before caling the first time.
-
-Options: `eshell-toggle-goto-eob'"
-  (interactive "P")
-  ;; Try to descide on one of three possibilities:
-  ;; 1. If not in eshell-buffer, switch to it.
-  ;; 2. If in eshell-buffer and called twice in a row, delete other
-  ;;    windows
-  ;; 3. If in eshell-buffer and not called twice in a row, return to
-  ;;    state before going to the eshell-buffer
-  (if (eq major-mode 'eshell-mode)
-      (if (and (or (eq last-command 'eshell-toggle)
-                   (eq last-command 'eshell-toggle-cd))
-               (not (eq (count-windows) 1)))
-          (delete-other-windows)
-        (eshell-toggle-buffer-return-from-eshell))
-    (eshell-toggle-buffer-goto-eshell make-cd)))
-
-;;; Internal Functions:
-
-(defvar eshell-toggle-pre-eshell-win-conf nil
-  "Contains window config before the *eshell* buffer was selected")
-
-(defun eshell-toggle-buffer-return-from-eshell ()
-  "Restores window config used before switching the *eshell* buffer.
-If no configuration has been stored, just bury the *eshell* buffer."
-  (if (window-configuration-p eshell-toggle-pre-eshell-win-conf)
-      (progn
-        (set-window-configuration eshell-toggle-pre-eshell-win-conf)
-        (setq eshell-toggle-pre-eshell-win-conf nil)
-        (bury-buffer (get-buffer "*eshell*")))
-    (bury-buffer)))
-
-(defun eshell-toggle-buffer-goto-eshell (make-cd)
-  "Switches other window to the *eshell* buffer.
-If no *eshell* buffer exists start a new eshell and switch to it in
-other window.  If argument MAKE-CD is non-nil, insert a \"cd DIR\"
-command into the eshell, where DIR is the directory of the current
-buffer.
-Stores the window cofiguration before creating and/or switching window."
-  (setq eshell-toggle-pre-eshell-win-conf (current-window-configuration))
-  (let ((eshell-buffer (get-buffer "*eshell*"))
-        (cd-command
-         ;; Find out which directory we are in (the method differs for
-         ;; different buffers)
-         (or (and make-cd
-                  (buffer-file-name)
-                  (file-name-directory (buffer-file-name))
-                  (concat "cd " (file-name-directory (buffer-file-name))))
-             (and make-cd
-                  list-buffers-directory
-                  (concat "cd " list-buffers-directory)))))
-    ;; Switch to an existin eshell if one exists, otherwise switch to
-    ;; another window and start a new eshell
-    (if eshell-buffer
-        (switch-to-buffer-other-window eshell-buffer)
-      (eshell-toggle-buffer-switch-to-other-window)
-      ;; Sometimes an error is generated when I call `eshell' (it has
-      ;; to do with my eshell-mode-hook which inserts text into the
-      ;; newly created eshell-buffer and thats not allways a good
-      ;; idea).
-      (condition-case the-error
-          (eshell)
-        (error (switch-to-buffer "*eshell*"))))
-    (if (or cd-command eshell-toggle-goto-eob)
-        (goto-char (point-max)))
-    (if cd-command
-        (progn
-          (insert cd-command)
-          (if eshell-toggle-automatic-cd
-              (eshell-send-input))))))
-
-(defun eshell-toggle-buffer-switch-to-other-window ()
-  "Switches to other window.
-If the current window is the only window in the current frame, create
-a new window and switch to it.  (This is less intrusive to the current
-window configuration then `switch-buffer-other-window')"
-  (let ((this-window (selected-window)))
-    (other-window 1)
-    ;; If we did not switch window then we only have one window and
-    ;; need to create a new one.
-    (if (eq this-window (selected-window))
-        (progn
-          (split-window-vertically)
-          (other-window 1)))))
-
-(provide 'esh-toggle)
-
-;;; esh-toggle.el ends here