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1 ;;; thai-util.el --- utilities for Thai
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2
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3 ;; Copyright (C) 1995 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
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5 ;; Copyright (C) 1997 MORIOKA Tomohiko
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6
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7 ;; Keywords: mule, multilingual, thai
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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
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License 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; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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24 ;; 02111-1307, USA.
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25
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26 ;;; Code:
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27
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28 ;; Setting information of Thai characters.
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29
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30 ;; (let ((l '((?,T!(B consonant "LETTER KO KAI") ; 0xA1
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31 ;; (?,T"(B consonant "LETTER KHO KHAI") ; 0xA2
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32 ;; (?,T#(B consonant "LETTER KHO KHUAT") ; 0xA3
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33 ;; (?,T$(B consonant "LETTER KHO KHWAI") ; 0xA4
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34 ;; (?,T%(B consonant "LETTER KHO KHON") ; 0xA5
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35 ;; (?,T&(B consonant "LETTER KHO RAKHANG") ; 0xA6
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36 ;; (?,T'(B consonant "LETTER NGO NGU") ; 0xA7
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37 ;; (?,T((B consonant "LETTER CHO CHAN") ; 0xA8
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38 ;; (?,T)(B consonant "LETTER CHO CHING") ; 0xA9
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39 ;; (?,T*(B consonant "LETTER CHO CHANG") ; 0xAA
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40 ;; (?,T+(B consonant "LETTER SO SO") ; 0xAB
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41 ;; (?,T,(B consonant "LETTER CHO CHOE") ; 0xAC
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42 ;; (?,T-(B consonant "LETTER YO YING") ; 0xAD
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43 ;; (?,T.(B consonant "LETTER DO CHADA") ; 0xAE
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44 ;; (?,T/(B consonant "LETTER TO PATAK") ; 0xAF
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45 ;; (?,T0(B consonant "LETTER THO THAN") ; 0xB0
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46 ;; (?,T1(B consonant "LETTER THO NANGMONTHO") ; 0xB1
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47 ;; (?,T2(B consonant "LETTER THO PHUTHAO") ; 0xB2
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48 ;; (?,T3(B consonant "LETTER NO NEN") ; 0xB3
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49 ;; (?,T4(B consonant "LETTER DO DEK") ; 0xB4
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50 ;; (?,T5(B consonant "LETTER TO TAO") ; 0xB5
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51 ;; (?,T6(B consonant "LETTER THO THUNG") ; 0xB6
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52 ;; (?,T7(B consonant "LETTER THO THAHAN") ; 0xB7
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53 ;; (?,T8(B consonant "LETTER THO THONG") ; 0xB8
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54 ;; (?,T9(B consonant "LETTER NO NU") ; 0xB9
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55 ;; (?,T:(B consonant "LETTER BO BAIMAI") ; 0xBA
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56 ;; (?,T;(B consonant "LETTER PO PLA") ; 0xBB
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57 ;; (?,T<(B consonant "LETTER PHO PHUNG") ; 0xBC
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58 ;; (?,T=(B consonant "LETTER FO FA") ; 0xBD
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59 ;; (?,T>(B consonant "LETTER PHO PHAN") ; 0xBE
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60 ;; (?,T?(B consonant "LETTER FO FAN") ; 0xBF
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61 ;; (?,T@(B consonant "LETTER PHO SAMPHAO") ; 0xC0
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62 ;; (?,TA(B consonant "LETTER MO MA") ; 0xC1
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63 ;; (?,TB(B consonant "LETTER YO YAK") ; 0xC2
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64 ;; (?,TC(B consonant "LETTER RO RUA") ; 0xC3
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65 ;; (?,TD(B vowel-base "LETTER RU (Pali vowel letter)") ; 0xC4
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66 ;; (?,TE(B consonant "LETTER LO LING") ; 0xC5
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67 ;; (?,TF(B vowel-base "LETTER LU (Pali vowel letter)") ; 0xC6
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68 ;; (?,TG(B consonant "LETTER WO WAEN") ; 0xC7
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69 ;; (?,TH(B consonant "LETTER SO SALA") ; 0xC8
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70 ;; (?,TI(B consonant "LETTER SO RUSI") ; 0xC9
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71 ;; (?,TJ(B consonant "LETTER SO SUA") ; 0xCA
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72 ;; (?,TK(B consonant "LETTER HO HIP") ; 0xCB
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73 ;; (?,TL(B consonant "LETTER LO CHULA") ; 0xCC
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74 ;; (?,TM(B consonant "LETTER O ANG") ; 0xCD
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75 ;; (?,TN(B consonant "LETTER HO NOK HUK") ; 0xCE
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76 ;; (?,TO(B special "PAI YAN NOI (abbreviation)") ; 0xCF
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77 ;; (?,TP(B vowel-base "VOWEL SIGN SARA A") ; 0xD0
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78 ;; (?,TQ(B vowel-upper "VOWEL SIGN MAI HAN-AKAT N/S-T") ; 0xD1
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79 ;; (?,TR(B vowel-base "VOWEL SIGN SARA AA") ; 0xD2
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80 ;; (?,TS(B vowel-base "VOWEL SIGN SARA AM") ; 0xD3
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81 ;; (?,TT(B vowel-upper "VOWEL SIGN SARA I N/S-T") ; 0xD4
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82 ;; (?,TU(B vowel-upper "VOWEL SIGN SARA II N/S-T") ; 0xD5
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83 ;; (?,TV(B vowel-upper "VOWEL SIGN SARA UE N/S-T") ; 0xD6
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84 ;; (?,TW(B vowel-upper "VOWEL SIGN SARA UEE N/S-T") ; 0xD7
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85 ;; (?,TX(B vowel-lower "VOWEL SIGN SARA U N/S-B") ; 0xD8
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86 ;; (?,TY(B vowel-lower "VOWEL SIGN SARA UU N/S-B") ; 0xD9
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87 ;; (?,TZ(B vowel-lower "VOWEL SIGN PHINTHU N/S-B (Pali virama)") ; 0xDA
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88 ;; (?,T[(B invalid nil) ; 0xDA
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89 ;; (?,T\(B invalid nil) ; 0xDC
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90 ;; (?,T](B invalid nil) ; 0xDC
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91 ;; (?,T^(B invalid nil) ; 0xDC
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92 ;; (?,T_(B special "BAHT SIGN (currency symbol)") ; 0xDF
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93 ;; (?,T`(B vowel-base "VOWEL SIGN SARA E") ; 0xE0
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94 ;; (?,Ta(B vowel-base "VOWEL SIGN SARA AE") ; 0xE1
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95 ;; (?,Tb(B vowel-base "VOWEL SIGN SARA O") ; 0xE2
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96 ;; (?,Tc(B vowel-base "VOWEL SIGN SARA MAI MUAN") ; 0xE3
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97 ;; (?,Td(B vowel-base "VOWEL SIGN SARA MAI MALAI") ; 0xE4
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98 ;; (?,Te(B vowel-base "LAK KHANG YAO") ; 0xE5
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99 ;; (?,Tf(B special "MAI YAMOK (repetion)") ; 0xE6
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100 ;; (?,Tg(B vowel-upper "VOWEL SIGN MAI TAI KHU N/S-T") ; 0xE7
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101 ;; (?,Th(B tone "TONE MAI EK N/S-T") ; 0xE8
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102 ;; (?,Ti(B tone "TONE MAI THO N/S-T") ; 0xE9
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103 ;; (?,Tj(B tone "TONE MAI TRI N/S-T") ; 0xEA
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104 ;; (?,Tk(B tone "TONE MAI CHATTAWA N/S-T") ; 0xEB
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105 ;; (?,Tl(B tone "THANTHAKHAT N/S-T (cancellation mark)") ; 0xEC
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106 ;; (?,Tm(B tone "NIKKHAHIT N/S-T (final nasal)") ; 0xED
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107 ;; (?,Tn(B vowel-upper "YAMAKKAN N/S-T") ; 0xEE
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108 ;; (?,To(B special "FONRMAN") ; 0xEF
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109 ;; (?,Tp(B special "DIGIT ZERO") ; 0xF0
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110 ;; (?,Tq(B special "DIGIT ONE") ; 0xF1
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111 ;; (?,Tr(B special "DIGIT TWO") ; 0xF2
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112 ;; (?,Ts(B special "DIGIT THREE") ; 0xF3
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113 ;; (?,Tt(B special "DIGIT FOUR") ; 0xF4
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114 ;; (?,Tu(B special "DIGIT FIVE") ; 0xF5
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115 ;; (?,Tv(B special "DIGIT SIX") ; 0xF6
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116 ;; (?,Tw(B special "DIGIT SEVEN") ; 0xF7
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117 ;; (?,Tx(B special "DIGIT EIGHT") ; 0xF8
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118 ;; (?,Ty(B special "DIGIT NINE") ; 0xF9
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119 ;; (?,Tz(B special "ANGKHANKHU (ellipsis)") ; 0xFA
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120 ;; (?,T{(B special "KHOMUT (beginning of religious texts)") ; 0xFB
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121 ;; (?,T|(B invalid nil) ; 0xFC
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122 ;; (?,T}(B invalid nil) ; 0xFD
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123 ;; (?,T~(B invalid nil) ; 0xFE
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124 ;; ))
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125 ;; elm)
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126 ;; (while l
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127 ;; (setq elm (car l))
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128 ;; (put-char-code-property (car elm) 'phonetic-type (car (cdr elm)))
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129 ;; (put-char-code-property (car elm) 'name (nth 2 elm))
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130 ;; (setq l (cdr l))))
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131
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132 (defconst thai-character-alist
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133 '((?,T!(B . consonant) ; 0xA1: LETTER KO KAI
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134 (?,T"(B . consonant) ; 0xA2: LETTER KHO KHAI
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135 (?,T#(B . consonant) ; 0xA3: LETTER KHO KHUAT (obsolete)
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136 (?,T$(B . consonant) ; 0xA4: LETTER KHO KHWAI
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137 (?,T%(B . consonant) ; 0xA5: LETTER KHO KHON (obsolete)
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138 (?,T&(B . consonant) ; 0xA6: LETTER KHO RAKHANG
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139 (?,T'(B . consonant) ; 0xA7: LETTER NGO NGU
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140 (?,T((B . consonant) ; 0xA8: LETTER CHO CHAN
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141 (?,T)(B . consonant) ; 0xA9: LETTER CHO CHING
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142 (?,T*(B . consonant) ; 0xAA: LETTER CHO CHANG
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143 (?,T+(B . consonant) ; 0xAB: LETTER SO SO
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144 (?,T,(B . consonant) ; 0xAC: LETTER CHO CHOE
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145 (?,T-(B . consonant) ; 0xAD: LETTER YO YING
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146 (?,T.(B . consonant) ; 0xAE: LETTER DO CHADA
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147 (?,T/(B . consonant) ; 0xAF: LETTER TO PATAK
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148 (?,T0(B . consonant) ; 0xB0: LETTER THO THAN
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149 (?,T1(B . consonant) ; 0xB1: LETTER THO NANGMONTHO
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150 (?,T2(B . consonant) ; 0xB2: LETTER THO PHUTHAO
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151 (?,T3(B . consonant) ; 0xB3: LETTER NO NEN
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152 (?,T4(B . consonant) ; 0xB4: LETTER DO DEK
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153 (?,T5(B . consonant) ; 0xB5: LETTER TO TAO
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154 (?,T6(B . consonant) ; 0xB6: LETTER THO THUNG
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155 (?,T7(B . consonant) ; 0xB7: LETTER THO THAHAN
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156 (?,T8(B . consonant) ; 0xB8: LETTER THO THONG
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157 (?,T9(B . consonant) ; 0xB9: LETTER NO NU
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158 (?,T:(B . consonant) ; 0xBA: LETTER BO BAIMAI
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159 (?,T;(B . consonant) ; 0xBB: LETTER PO PLA
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160 (?,T<(B . consonant) ; 0xBC: LETTER PHO PHUNG
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161 (?,T=(B . consonant) ; 0xBD: LETTER FO FA
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162 (?,T>(B . consonant) ; 0xBE: LETTER PHO PHAN
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163 (?,T?(B . consonant) ; 0xBF: LETTER FO FAN
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164 (?,T@(B . consonant) ; 0xC0: LETTER PHO SAMPHAO
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165 (?,TA(B . consonant) ; 0xC1: LETTER MO MA
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166 (?,TB(B . consonant) ; 0xC2: LETTER YO YAK
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167 (?,TC(B . consonant) ; 0xC3: LETTER RO RUA
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168 (?,TD(B . vowel-base) ; 0xC4: LETTER RU (vowel letter used to write Pali)
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169 (?,TE(B . consonant) ; 0xC5: LETTER LO LING
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170 (?,TF(B . vowel-base) ; 0xC6: LETTER LU (vowel letter used to write Pali)
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171 (?,TG(B . consonant) ; 0xC7: LETTER WO WAEN
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172 (?,TH(B . consonant) ; 0xC8: LETTER SO SALA
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173 (?,TI(B . consonant) ; 0xC9: LETTER SO RUSI
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174 (?,TJ(B . consonant) ; 0xCA: LETTER SO SUA
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175 (?,TK(B . consonant) ; 0xCB: LETTER HO HIP
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176 (?,TL(B . consonant) ; 0xCC: LETTER LO CHULA
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177 (?,TM(B . consonant) ; 0xCD: LETTER O ANG
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178 (?,TN(B . consonant) ; 0xCE: LETTER HO NOK HUK
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179 (?,TO(B . special) ; 0xCF: PAI YAN NOI (abbreviation)
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180 (?,TP(B . vowel-base) ; 0xD0: VOWEL SIGN SARA A
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181 (?,TQ(B . vowel-upper) ; 0xD1: VOWEL SIGN MAI HAN-AKAT N/S-T
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182 (?,TR(B . vowel-base) ; 0xD2: VOWEL SIGN SARA AA
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183 (?,TS(B . vowel-base) ; 0xD3: VOWEL SIGN SARA AM
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184 (?,TT(B . vowel-upper) ; 0xD4: VOWEL SIGN SARA I N/S-T
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185 (?,TU(B . vowel-upper) ; 0xD5: VOWEL SIGN SARA II N/S-T
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186 (?,TV(B . vowel-upper) ; 0xD6: VOWEL SIGN SARA UE N/S-T
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187 (?,TW(B . vowel-upper) ; 0xD7: VOWEL SIGN SARA UEE N/S-T
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188 (?,TX(B . vowel-lower) ; 0xD8: VOWEL SIGN SARA U N/S-B
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189 (?,TY(B . vowel-lower) ; 0xD9: VOWEL SIGN SARA UU N/S-B
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190 (?,TZ(B . vowel-lower) ; 0xDA: VOWEL SIGN PHINTHU N/S-B (Pali virama)
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191 (?,T[(B . not-used) ; 0xDA:
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192 (?,T\(B . not-used) ; 0xDC:
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193 (?,T](B . not-used) ; 0xDC:
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194 (?,T^(B . not-used) ; 0xDC:
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195 (?,T_(B . special) ; 0xDF: BAHT SIGN (currency symbol)
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196 (?,T`(B . vowel-base) ; 0xE0: VOWEL SIGN SARA E
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197 (?,Ta(B . vowel-base) ; 0xE1: VOWEL SIGN SARA AE
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198 (?,Tb(B . vowel-base) ; 0xE2: VOWEL SIGN SARA O
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199 (?,Tc(B . vowel-base) ; 0xE3: VOWEL SIGN SARA MAI MUAN
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200 (?,Td(B . vowel-base) ; 0xE4: VOWEL SIGN SARA MAI MALAI
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201 (?,Te(B . vowel-base) ; 0xE5: LAK KHANG YAO
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202 (?,Tf(B . special) ; 0xE6: MAI YAMOK (repetion)
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203 (?,Tg(B . vowel-upper) ; 0xE7: VOWEL SIGN MAI TAI KHU N/S-T
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204 (?,Th(B . tone) ; 0xE8: TONE MAI EK N/S-T
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205 (?,Ti(B . tone) ; 0xE9: TONE MAI THO N/S-T
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206 (?,Tj(B . tone) ; 0xEA: TONE MAI TRI N/S-T
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207 (?,Tk(B . tone) ; 0xEB: TONE MAI CHATTAWA N/S-T
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208 (?,Tl(B . tone) ; 0xEC: THANTHAKHAT N/S-T (cancellation mark)
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209 (?,Tm(B . tone) ; 0xED: NIKKHAHIT N/S-T (final nasal)
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210 (?,Tn(B . vowel-upper) ; 0xEE: YAMAKKAN N/S-T
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211 (?,To(B . special) ; 0xEF: FONRMAN
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212 (?,Tp(B . special) ; 0xF0: DIGIT ZERO
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213 (?,Tq(B . special) ; 0xF1: DIGIT ONE
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214 (?,Tr(B . special) ; 0xF2: DIGIT TWO
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215 (?,Ts(B . special) ; 0xF3: DIGIT THREE
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216 (?,Tt(B . special) ; 0xF4: DIGIT FOUR
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217 (?,Tu(B . special) ; 0xF5: DIGIT FIVE
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218 (?,Tv(B . special) ; 0xF6: DIGIT SIX
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219 (?,Tw(B . special) ; 0xF7: DIGIT SEVEN
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220 (?,Tx(B . special) ; 0xF8: DIGIT EIGHT
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221 (?,Ty(B . special) ; 0xF9: DIGIT NINE
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222 (?,Tz(B . special) ; 0xFA: ANGKHANKHU (ellipsis)
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223 (?,T{(B . special) ; 0xFB: KHOMUT (beginning of religious texts)
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224 (?,T|(B . not-used) ; 0xFC:
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225 (?,T}(B . not-used) ; 0xFD:
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226 (?,T~(B . not-used) ; 0xFE:
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227 )
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228 "Association list of thai-character and property.")
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229 (setq thai-character-alist
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230 (cons (cons (string-to-char "0,TQi1(B") 'vowel-upper-tone)
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231 thai-character-alist))
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232
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233 (defconst thai-category-table
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234 (copy-category-table (standard-category-table))
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235 "Category table for Thai.")
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236 (define-category-mnemonic ?0 "Thai consonants"
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237 thai-category-table)
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238 (define-category-mnemonic ?1 "Thai upper/lower vowel or tone mark."
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239 thai-category-table)
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240 (define-category-mnemonic ?2 "Thai base vowel or special characters."
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241 thai-category-table)
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242
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243 (let ((chars thai-character-alist)
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244 ch prop)
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245 (while chars
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246 (setq ch (car (car chars))
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247 prop (cdr (car chars)))
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248 (cond ((eq prop 'consonant)
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249 (modify-category-entry ch ?0 thai-category-table))
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250 ((or (eq prop 'vowel-upper)
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251 (eq prop 'vowel-lower)
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252 (eq prop 'tone))
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253 (modify-category-entry ch ?1 thai-category-table))
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254 ((null (eq prop 'vowel-upper-tone))
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255 (modify-category-entry ch ?2 thai-category-table)))
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256 (setq chars (cdr chars))))
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257
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258 ;; ;;;###autoload
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259 ;; (defun thai-compose-region (beg end)
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260 ;; "Compose Thai characters in the region.
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261 ;; When called from a program, expects two arguments,
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262 ;; positions (integers or markers) specifying the region."
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263 ;; (interactive "r")
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264 ;; (save-restriction
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265 ;; (narrow-to-region beg end)
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266 ;; (decompose-region (point-min) (point-max))
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267 ;; (goto-char (point-min))
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268 ;; (while (re-search-forward "\\c0\\(\\c2\\|\\c3\\|\\c4\\)+" nil t)
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269 ;; (if (aref (char-category-set (char-after (match-beginning 0))) ?t)
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270 ;; (compose-region (match-beginning 0) (match-end 0))))))
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271
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272 ;;;###autoload
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273 (defun thai-compose-region (beg end)
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274 "Compose Thai characters in the region."
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275 (interactive "r")
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276 (save-restriction
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277 (narrow-to-region beg end)
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278 (decompose-region (point-min) (point-max))
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279 (goto-char (point-min))
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280 (let ((ctbl (category-table))
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281 str)
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282 (unwind-protect
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283 (progn
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284 (set-category-table thai-category-table)
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285 (while (re-search-forward "\\c0\\c1+" nil t)
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286 (compose-region (match-beginning 0) (match-end 0))))
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287 (set-category-table ctbl)))))
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288
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289 ;;;###autoload
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290 (defun thai-compose-buffer ()
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291 "Compose Thai characters in the current buffer."
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292 (interactive)
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293 (thai-compose-region (point-min) (point-max)))
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294
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295 ;; ;;;###autoload
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296 ;; (defun thai-post-read-conversion (len)
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297 ;; (save-excursion
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298 ;; (save-restriction
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299 ;; (let ((buffer-modified-p (buffer-modified-p)))
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300 ;; (narrow-to-region (point) (+ (point) len))
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301 ;; (thai-compose-region (point-min) (point-max))
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302 ;; (set-buffer-modified-p buffer-modified-p)
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303 ;; (- (point-max) (point-min))))))
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304
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305 ;; ;;;###autoload
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306 ;; (defun thai-pre-write-conversion (from to)
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307 ;; (let ((old-buf (current-buffer))
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308 ;; (work-buf (get-buffer-create " *thai-work*")))
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309 ;; (set-buffer work-buf)
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310 ;; (erase-buffer)
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311 ;; (if (stringp from)
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312 ;; (insert from)
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313 ;; (insert-buffer-substring old-buf from to))
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314 ;; (decompose-region (point-min) (point-max))
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315 ;; ;; Should return nil as annotations.
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316 ;; nil))
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317
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318 ;;
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319 (provide 'language/thai-util)
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320
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321 ;;; Local Variables:
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322 ;;; generated-autoload-file: "../loaddefs.el"
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323 ;;; End:
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324 ;;; thai-util.el ends here
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