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1 ;;; chinese.el --- Chinese specific setup for XEmacs/Mule (not pre-loaded).
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2
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3 ;; Copyright (C) 1992 Free Software Foundation, Inc.
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4
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5 ;; This file is part of XEmacs.
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6
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7 ;; XEmacs is free software; you can redistribute it and/or modify it
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8 ;; under the terms of the GNU General Public License as published by
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9 ;; the Free Software Foundation; either version 2, or (at your option)
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10 ;; any later version.
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11
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12 ;; XEmacs is distributed in the hope that it will be useful, but
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13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 ;; General Public License for more details.
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16
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17 ;; You should have received a copy of the GNU General Public License
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18 ;; along with XEmacs; see the file COPYING. If not, write to the
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19 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 ;; Boston, MA 02111-1307, USA.
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21
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22 ;;; Synched up with: Mule 2.3.
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23
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24 ;;; 92.3.5 Created for Mule Ver.0.9.0 by K.Handa <handa@etl.go.jp>
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25
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26 ;; #### This does not work yet in XEmacs.
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27
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28 ;; Hz/ZW encoding stuffs
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29 (defvar hz2gb-gb-designation "\e$A")
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30 (defvar hz2gb-ascii-designation "\e(B")
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31 (defvar hz2gb-line-continuation nil)
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32
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33 ;;;###autoload
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34 (defun hz2gb-buffer ()
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35 "Decode the text in the current buffer, assumed to be HZ/ZW-encoded."
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36 (interactive)
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37 (hz2gb-region (point-min) (point-max)))
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38
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39 ;;;###autoload
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40 (defun hz2gb-region (beg end)
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41 "Decode HZ/ZW-encoded text between point and mark.
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42 When called from a program, expects two arguments,
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43 positions (integers or markers) specifying the stretch to be decoded."
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44 (interactive "r")
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45 (save-excursion
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46 (save-restriction
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47 (narrow-to-region beg end)
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48 ;; "~\n" -> "\n"
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49 (goto-char (point-min))
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50 (while (search-forward "~" nil t)
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51 (if (= (following-char) ?\n) (delete-char -1))
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52 (if (not (eobp)) (forward-char 1)))
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53 ;; "^zW...\n" -> Chinese text
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54 ;; "~{...~}" -> Chinese Text
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55 (goto-char (point-min))
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56 (let (chinese-found)
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57 (while (re-search-forward "~{\\|^zW" nil t)
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58 (if (= (char-after (match-beginning 0)) ?z)
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59 ;; ZW -> junet
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60 (progn
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61 (delete-char -2)
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62 (insert hz2gb-gb-designation)
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63 (end-of-line)
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64 (insert hz2gb-ascii-designation))
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65 ;; Hz -> junet
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66 (delete-char -2)
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67 (insert hz2gb-gb-designation)
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68 (if (re-search-forward "\\(~}\\)\\|\\(\n\\)" nil t)
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69 (if (match-beginning 1)
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70 (replace-match hz2gb-ascii-designation)
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71 (if (not hz2gb-line-continuation)
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72 (progn
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73 (goto-char (match-beginning 2))
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74 (insert hz2gb-ascii-designation))))))
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75 (setq chinese-found t))
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76 (if chinese-found
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77 (decode-coding-region (point-min) (point-max) 'junet)))
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78 ;; "~~" -> "~"
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79 (goto-char (point-min))
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80 (while (search-forward "~~" nil t) (delete-char -1)))))
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81
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82 ;;;###autoload
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83 (defun gb2hz-buffer ()
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84 "Convert whole text in the current buffer
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85 from mule internal encoding to HZ encoding."
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86 (interactive) (gb2hz-region (point-min) (point-max)))
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87
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88 ;;;###autoload
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89 (defun gb2hz-region (beg end)
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90 "Encode text between point and mark in HZ/ZW encoding.
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91 When called from a program, expects two arguments,
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92 positions (integers or markers) specifying the stretch to be encoded."
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93 (interactive "r")
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94 (save-excursion
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95 (save-restriction
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96 (narrow-to-region beg end)
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97 ;; "~" -> "~~"
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98 (goto-char (point-min))
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99 (while (search-forward "~" nil t) (insert ?~))
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100 ;; Chinese text -> "~{...~}"
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101 (goto-char (point-min))
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102 (if (re-search-forward "\\cc" nil t)
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103 (let (p)
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104 (goto-char (match-beginning 0))
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105 (setq p (point))
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106 (encode-coding-region p (point-max) 'junet)
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107 (goto-char p)
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108 (while (search-forward hz2gb-gb-designation nil t)
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109 (delete-char -3)
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110 (insert "~{"))
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111 (goto-char p)
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112 (while (search-forward hz2gb-ascii-designation nil t)
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113 (delete-char -3)
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114 (insert "~}"))
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115 (goto-char p)))
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116 )))
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117
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118 ;;;
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119 (provide 'chinese)
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