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annotate lisp/mule/viet-util.el @ 5938:699264ac20f1 cygwin

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tls.h (why?) and skip-ascii.h added
author Henry Thompson <ht@markup.co.uk>
date Wed, 08 Dec 2021 18:43:18 +0000
parents ac37a5f7e5be
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ;;; viet-util.el --- utilities for Vietnamese -*- coding: iso-2022-7bit; -*-
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2
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3 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
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4 ;; Copyright (C) 2002 Ben Wing.
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5 ;; Licensed to the Free Software Foundation.
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6
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7 ;; Keywords: mule, multilingual, Vietnamese
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software: you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by the
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13 ;; Free Software Foundation, either version 3 of the License, or (at your
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14 ;; option) any later version.
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16 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT
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17 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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18 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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19 ;; for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>.
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23
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24 ;;; Synched up with: Emacs 21.1 (language/viet-util.el).
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25
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26 ;;; Commentary:
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27
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28 ;; Vietnamese uses ASCII characters and additional 134 unique
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29 ;; characters (these are Latin alphabets with various diacritical and
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30 ;; tone marks). As far as I know, Vietnamese now has 4 different ways
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31 ;; for representing these characters: VISCII, VSCII, VIQR, and
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32 ;; Unicode. VISCII and VSCII are simple 1-byte code which assigns 134
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33 ;; unique characters in control-code area (0x00..0x1F) and right half
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34 ;; area (0x80..0xFF). VIQR is a menmonic encoding specification
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35 ;; representing diacritical marks by following ASCII characters.
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36
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37 ;;; Code:
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38
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39 ;;;###autoload
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40 (defun viet-encode-viscii-char (char)
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41 "Return VISCII character code of CHAR if appropriate."
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42 (check-argument-type #'characterp char)
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43 (if (eq char ?~)
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44 char
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45 (setq char (encode-coding-string char 'viscii))
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46 (if (and (eql 1 (length char))
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47 (not (eql (aref char 0) ?~)))
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48 (aref char 0))))
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49
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50 ;; VIQR is a menmonic encoding specification for Vietnamese.
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51 ;; It represents diacritical marks by ASCII characters as follows:
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52 ;; ------------+----------+--------
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53 ;; mark | mnemonic | example
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54 ;; ------------+----------+---------
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55 ;; breve | ( | a( -> ,1e(B
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56 ;; circumflex | ^ | a^ -> ,1b(B
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57 ;; horn | + | o+ -> ,1=(B
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58 ;; ------------+----------+---------
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59 ;; acute | ' | a' -> ,1a(B
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60 ;; grave | ` | a` -> ,1`(B
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61 ;; hook above | ? | a? -> ,1d(B
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62 ;; tilde | ~ | a~ -> ,1c(B
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63 ;; dot below | . | a. -> ,1U(B
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64 ;; ------------+----------+---------
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65 ;; d bar | dd | dd -> ,1p(B
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66 ;; ------------+----------+---------
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67
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68 (defvar viet-viqr-alist
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69 '(;; lowercase
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70 (?,1!(B . "a('") ; 161
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71 (?,1"(B . "a(`") ; 162
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72 (?,1#(B . "a(.") ; 163
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73 (?,1$(B . "a^'") ; 164
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74 (?,1%(B . "a^`") ; 165
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75 (?,1&(B . "a^?") ; 166
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76 (?,1'(B . "a^.") ; 167
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77 (?,1((B . "e~") ; 168
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78 (?,1)(B . "e.") ; 169
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79 (?,1*(B . "e^'") ; 170
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80 (?,1+(B . "e^`") ; 171
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81 (?,1,(B . "e^?") ; 172
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82 (?,1-(B . "e^~") ; 173
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83 (?,1.(B . "e^.") ; 174
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84 (?,1/(B . "o^'") ; 175
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85 (?,10(B . "o^`") ; 176
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86 (?,11(B . "o^?") ; 177
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87 (?,12(B . "o^~") ; 178
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88 (?,15(B . "o^.") ; 181
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89 (?,16(B . "o+`") ; 182
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90 (?,17(B . "o+?") ; 183
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91 (?,18(B . "i.") ; 184
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92 (?,1=(B . "o+") ; 189
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93 (?,1>(B . "o+'") ; 190
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94 (?,1F(B . "a(?") ; 198
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95 (?,1G(B . "a(~") ; 199
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96 (?,1O(B . "y`") ; 207
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97 (?,1Q(B . "u+'") ; 209
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98 (?,1U(B . "a.") ; 213
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99 (?,1V(B . "y?") ; 214
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100 (?,1W(B . "u+`") ; 215
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101 (?,1X(B . "u+?") ; 216
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102 (?,1[(B . "y~") ; 219
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103 (?,1\(B . "y.") ; 220
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104 (?,1^(B . "o+~") ; 222
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105 (?,1_(B . "u+") ; 223
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106 (?,1`(B . "a`") ; 224
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107 (?,1a(B . "a'") ; 225
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108 (?,1b(B . "a^") ; 226
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109 (?,1c(B . "a~") ; 227
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110 (?,1d(B . "a?") ; 228
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111 (?,1e(B . "a(") ; 229
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112 (?,1f(B . "u+~") ; 230
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113 (?,1g(B . "a^~") ; 231
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114 (?,1h(B . "e`") ; 232
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115 (?,1i(B . "e'") ; 233
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116 (?,1j(B . "e^") ; 234
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117 (?,1k(B . "e?") ; 235
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118 (?,1l(B . "i`") ; 236
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119 (?,1m(B . "i'") ; 237
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120 (?,1n(B . "i~") ; 238
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121 (?,1o(B . "i?") ; 239
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122 (?,1p(B . "dd") ; 240
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123 (?,1q(B . "u+.") ; 241
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124 (?,1r(B . "o`") ; 242
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125 (?,1s(B . "o'") ; 243
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126 (?,1t(B . "o^") ; 244
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127 (?,1u(B . "o~") ; 245
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128 (?,1v(B . "o?") ; 246
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129 (?,1w(B . "o.") ; 247
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130 (?,1x(B . "u.") ; 248
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131 (?,1y(B . "u`") ; 249
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132 (?,1z(B . "u'") ; 250
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133 (?,1{(B . "u~") ; 251
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134 (?,1|(B . "u?") ; 252
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135 (?,1}(B . "y'") ; 253
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136 (?,1~(B . "o+.") ; 254
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137
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138 ;; upper case
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139 (?,2!(B . "A('") ; 161
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140 (?,2"(B . "A(`") ; 162
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141 (?,2#(B . "A(.") ; 163
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142 (?,2$(B . "A^'") ; 164
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143 (?,2%(B . "A^`") ; 165
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144 (?,2&(B . "A^?") ; 166
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145 (?,2'(B . "A^.") ; 167
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146 (?,2((B . "E~") ; 168
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147 (?,2)(B . "E.") ; 169
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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148 (?,2*(B . "E^'") ; 170
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149 (?,2+(B . "E^`") ; 171
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150 (?,2,(B . "E^?") ; 172
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151 (?,2-(B . "E^~") ; 173
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152 (?,2.(B . "E^.") ; 174
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153 (?,2/(B . "O^'") ; 175
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154 (?,20(B . "O^`") ; 176
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155 (?,21(B . "O^?") ; 177
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156 (?,22(B . "O^~") ; 178
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157 (?,25(B . "O^.") ; 181
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158 (?,26(B . "O+`") ; 182
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159 (?,27(B . "O+?") ; 183
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160 (?,28(B . "I.") ; 184
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161 (?,2=(B . "O+") ; 189
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162 (?,2>(B . "O+'") ; 190
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163 (?,2F(B . "A(?") ; 198
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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164 (?,2G(B . "A(~") ; 199
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165 (?,2O(B . "Y`") ; 207
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166 (?,2Q(B . "U+'") ; 209
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167 (?,2U(B . "A.") ; 213
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168 (?,2V(B . "Y?") ; 214
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169 (?,2W(B . "U+`") ; 215
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170 (?,2X(B . "U+?") ; 216
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171 (?,2[(B . "Y~") ; 219
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172 (?,2\(B . "Y.") ; 220
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173 (?,2^(B . "O+~") ; 222
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174 (?,2_(B . "U+") ; 223
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175 (?,2`(B . "A`") ; 224
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176 (?,2a(B . "A'") ; 225
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177 (?,2b(B . "A^") ; 226
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178 (?,2c(B . "A~") ; 227
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179 (?,2d(B . "A?") ; 228
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180 (?,2e(B . "A(") ; 229
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181 (?,2f(B . "U+~") ; 230
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182 (?,2g(B . "A^~") ; 231
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183 (?,2h(B . "E`") ; 232
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184 (?,2i(B . "E'") ; 233
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185 (?,2j(B . "E^") ; 234
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186 (?,2k(B . "E?") ; 235
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187 (?,2l(B . "I`") ; 236
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188 (?,2m(B . "I'") ; 237
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189 (?,2n(B . "I~") ; 238
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190 (?,2o(B . "I?") ; 239
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191 (?,2p(B . "DD") ; 240
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192 (?,2p(B . "dD") ; 240
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193 (?,2p(B . "Dd") ; 240
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194 (?,2q(B . "U+.") ; 241
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195 (?,2r(B . "O`") ; 242
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196 (?,2s(B . "O'") ; 243
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197 (?,2t(B . "O^") ; 244
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198 (?,2u(B . "O~") ; 245
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199 (?,2v(B . "O?") ; 246
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200 (?,2w(B . "O.") ; 247
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201 (?,2x(B . "U.") ; 248
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202 (?,2y(B . "U`") ; 249
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203 (?,2z(B . "U'") ; 250
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204 (?,2{(B . "U~") ; 251
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205 (?,2|(B . "U?") ; 252
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206 (?,2}(B . "Y'") ; 253
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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207 (?,2~(B . "O+.") ; 254
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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diff changeset
208
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
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209 ;; escape from composition
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
210 (?\( . "\\(") ; breve (left parenthesis)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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211 (?^ . "\\^") ; circumflex (caret)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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212 (?+ . "\\+") ; horn (plus sign)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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213 (?' . "\\'") ; acute (apostrophe)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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214 (?` . "\\`") ; grave (backquote)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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215 (?? . "\\?") ; hook above (question mark)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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216 (?~ . "\\~") ; tilde (tilde)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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217 (?. . "\\.") ; dot below (period)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
218 (?d . "\\d") ; d-bar (d)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
219 (?\\ . "\\\\") ; literal backslash
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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220 )
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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221 "Alist of Vietnamese characters vs corresponding `VIQR' string.")
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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222
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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223 ;; Regular expression matching single Vietnamese character represented
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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diff changeset
224 ;; by VIQR.
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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225 (defconst viqr-regexp
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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226 "[aeiouyAEIOUY]\\([(^+]?['`?~.]\\|[(^+]\\)\\|[Dd][Dd]")
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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227
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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228 ;;;###autoload
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229 (defun viet-decode-viqr-region (from to)
1196
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diff changeset
230 "Convert `VIQR' mnemonics of the current region to Vietnamese characters.
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
231 When called from a program, expects two arguments,
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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232 positions (integers or markers) specifying the stretch of the region."
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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233 (interactive "r")
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
234 (save-restriction
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
235 (narrow-to-region from to)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
236 (goto-char (point-min))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
237 (while (re-search-forward viqr-regexp nil t)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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238 (let* ((viqr (buffer-substring (match-beginning 0) (match-end 0)))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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239 (ch (car (rassoc viqr viet-viqr-alist))))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
240 (if ch
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
241 (progn
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
242 (delete-region (match-beginning 0) (match-end 0))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
243 (insert ch)))))))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
244
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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245 ;;;###autoload
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
246 (defun viet-decode-viqr-buffer ()
1196
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diff changeset
247 "Convert `VIQR' mnemonics of the current buffer to Vietnamese characters."
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
248 (interactive)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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249 (viet-decode-viqr-region (point-min) (point-max)))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
250
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
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251 ;;;###autoload
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
252 (defun viet-encode-viqr-region (from to)
1196
6c18935dbbf8 [xemacs-hg @ 2003-01-09 13:08:53 by stephent]
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diff changeset
253 "Convert Vietnamese characters of the current region to `VIQR' mnemonics.
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
254 When called from a program, expects two arguments,
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
255 positions (integers or markers) specifying the stretch of the region."
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
256 (interactive "r")
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
257 (save-restriction
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
258 (narrow-to-region from to)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
259 (goto-char (point-min))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
260 (while (re-search-forward "\\cv" nil t)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
261 (let* ((ch (preceding-char))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
262 (viqr (cdr (assq ch viet-viqr-alist))))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
263 (if viqr
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
264 (progn
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
265 (delete-char -1)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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266 (insert viqr)))))))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
267
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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268 ;;;###autoload
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
269 (defun viet-encode-viqr-buffer ()
1196
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parents: 788
diff changeset
270 "Convert Vietnamese characters of the current buffer to `VIQR' mnemonics."
771
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
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parents:
diff changeset
271 (interactive)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
272 (viet-encode-viqr-region (point-min) (point-max)))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
273
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
274 ;;;###autoload
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
275 (defun viqr-post-read-conversion (len)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
276 (save-excursion
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
277 (save-restriction
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
278 (narrow-to-region (point) (+ (point) len))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
279 (let ((buffer-modified-p (buffer-modified-p)))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
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diff changeset
280 (viet-decode-viqr-region (point-min) (point-max))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
281 (set-buffer-modified-p buffer-modified-p)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
282 (- (point-max) (point-min))))))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
283
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
284 ;;;###autoload
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
285 (defun viqr-pre-write-conversion (from to)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
286 (let ((old-buf (current-buffer)))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
287 (set-buffer (generate-new-buffer " *temp*"))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
288 (if (stringp from)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
289 (insert from)
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
290 (insert-buffer-substring old-buf from to))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
291 (viet-encode-viqr-region (point-min) (point-max))
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
diff changeset
292 ;; Should return nil as annotations.
943eaba38521 [xemacs-hg @ 2002-03-13 08:51:24 by ben]
ben
parents:
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293 nil))
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294
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295 ;;;
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296 (provide 'viet-util)
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297
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298 ;;; viet-util.el ends here