vm / vm-license.el

;;; Code to show VM's warranty and copying restrictions
;;; Copyright (C) 1989, 1994 Kyle E. Jones
;;;
;;; 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 1, 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 this program; if not, write to the Free Software
;;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

(provide 'vm-license)

(defun vm-show-copying-restrictions (&optional warranty)
  (interactive)
  (require 'info)
  (let ((pop-up-windows (eq vm-mutable-windows t))
	(pop-up-frames (and vm-mutable-frames vm-frame-per-help)))
    (or 
     (condition-case ()
	 (progn (Info-goto-node "(vm)License") t)
       (error nil))
     (condition-case ()
	 (progn (Info-goto-node "(vm.info)License") t)
       (error nil))
     (error "VM Info documentation appears not to be installed"))
    (vm-display (current-buffer) t nil nil)
    (vm-display nil nil '(vm-show-copying-restrictions vm-show-no-warranty)
		(list this-command))
    (if warranty
	(let ((case-fold-search nil))
	  (search-forward "NO WARRANTY\n" nil t)
	  (forward-line -1)
	  (set-window-start (selected-window) (point))))))

(defun vm-show-no-warranty ()
  "Display \"NO WARRANTY\" section of the GNU General Public License."
  (interactive)
  (vm-show-copying-restrictions t))
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