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1 ;;; mule-help.el --- Mule-ized Help functions
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2
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3 ;; Copyright (C) 1997 by Free Software Foundation, Inc.
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4
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5 ;; Author: SL Baur <steve@altair.xemacs.org>
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6 ;; Keywords: help, internal
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: Emacs 20.1
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26
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27 ;;; Commentary:
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28
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29 ;;
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30
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31 ;;; Code:
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32
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33 ;; TUTORIAL arg is XEmacs addition
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34 (defun help-with-tutorial (&optional arg tutorial)
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35 "Select the Emacs learn-by-doing tutorial.
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36 If there is a tutorial version written in the language
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37 of the selected language environment, that version is used.
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38 If there's no tutorial in that language, `TUTORIAL' is selected.
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39 With arg, you are asked to select which language."
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40 (interactive "P")
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41 (let (lang filename file)
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42 (if arg
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43 (or (setq lang (read-language-name 'tutorial "Language: "))
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44 (error "No tutorial file of the specified language"))
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45 (setq lang current-language-environment))
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46 (setq filename (or (get-language-info lang 'tutorial)
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47 (or tutorial "TUTORIAL")))
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48 (setq file (expand-file-name (concat "~/" filename)))
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49 (delete-other-windows)
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50 (if (get-file-buffer file)
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51 (switch-to-buffer (get-file-buffer file))
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52 (switch-to-buffer (create-file-buffer file))
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53 (setq buffer-file-name file)
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54 (setq default-directory (expand-file-name "~/"))
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55 (setq buffer-auto-save-file-name nil)
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56 (insert-file-contents (expand-file-name filename data-directory))
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57 (goto-char (point-min))
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58 (search-forward "\n<<")
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59 (beginning-of-line)
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60 (delete-region (point) (progn (end-of-line) (point)))
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61 (let ((n (- (window-height (selected-window))
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62 (count-lines (point-min) (point))
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63 6)))
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64 (if (< n 12)
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65 (newline n)
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66 ;; Some people get confused by the large gap.
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67 (newline (/ n 2))
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68 (insert "[Middle of page left blank for didactic purposes. "
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69 "Text continues below]")
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70 (newline (- n (/ n 2)))))
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71 (goto-char (point-min))
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72 (set-buffer-modified-p nil))))
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73
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74
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75 (provide 'mule-help)
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76
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77 ;;; mule-help.el ends here |
