diff lisp/mule/mule-help.el @ 207:e45d5e7c476e r20-4b2

Import from CVS: tag r20-4b2
author cvs
date Mon, 13 Aug 2007 10:03:52 +0200
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children 41ff10fd062f
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+++ b/lisp/mule/mule-help.el	Mon Aug 13 10:03:52 2007 +0200
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+;;; mule-help.el --- Mule-ized Help functions 
+
+;; Copyright (C) 1997 by Free Software Foundation, Inc.
+
+;; Author: SL Baur <steve@altair.xemacs.org>
+;; Keywords: help, internal
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: Emacs 20.1
+
+;;; Commentary:
+
+;; 
+
+;;; Code:
+
+;; TUTORIAL arg is XEmacs addition
+(defun help-with-tutorial (&optional arg tutorial)
+  "Select the Emacs learn-by-doing tutorial.
+If there is a tutorial version written in the language
+of the selected language environment, that version is used.
+If there's no tutorial in that language, `TUTORIAL' is selected.
+With arg, you are asked to select which language."
+  (interactive "P")
+  (let (lang filename file)
+    (if arg
+	(or (setq lang (read-language-name 'tutorial "Language: "))
+	    (error "No tutorial file of the specified language"))
+      (setq lang current-language-environment))
+    (setq filename (or (get-language-info lang 'tutorial)
+		       (or tutorial "TUTORIAL")))
+    (setq file (expand-file-name (concat "~/" filename)))
+    (delete-other-windows)
+    (if (get-file-buffer file)
+	(switch-to-buffer (get-file-buffer file))
+      (switch-to-buffer (create-file-buffer file))
+      (setq buffer-file-name file)
+      (setq default-directory (expand-file-name "~/"))
+      (setq buffer-auto-save-file-name nil)
+      (insert-file-contents (expand-file-name filename data-directory))
+      (goto-char (point-min))
+      (search-forward "\n<<")
+      (beginning-of-line)
+      (delete-region (point) (progn (end-of-line) (point)))
+      (let ((n (- (window-height (selected-window))
+		  (count-lines (point-min) (point))
+		  6)))
+	(if (< n 12)
+	    (newline n)
+	  ;; Some people get confused by the large gap.
+	  (newline (/ n 2))
+	  (insert "[Middle of page left blank for didactic purposes.  "
+		  "Text continues below]")
+	  (newline (- n (/ n 2)))))
+      (goto-char (point-min))
+      (set-buffer-modified-p nil))))
+
+
+(provide 'mule-help)
+
+;;; mule-help.el ends here
\ No newline at end of file