1 ;;; thai-util.el --- utilities for Thai -*- coding: iso-2022-7bit; -*-
3 ;; Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2005
4 ;; National Institute of Advanced Industrial Science and Technology (AIST)
5 ;; Registration Number H14PRO021
6 ;; Copyright (C) 2000, 2001 Free Software Foundation, Inc.
8 ;; Keywords: mule, multilingual, thai
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
31 (defvar thai-auto-composition-mode)
33 ;; Setting information of Thai characters.
35 (defconst thai-category-table (make-category-table))
36 (define-category ?c "Thai consonant" thai-category-table)
37 (define-category ?v "Thai upper/lower vowel" thai-category-table)
38 (define-category ?t "Thai tone mark" thai-category-table)
39 (define-category ?u "Thai tone mark and upper sign" thai-category-table)
40 (define-category ?I "THAI CHARACTER SARA I" thai-category-table)
41 (define-category ?U "THAI CHARACTER THANTHAKHAT" thai-category-table)
43 ;; The general composing rules are as follows:
47 ;; CV -> C, CU -> C, CVT -> C, Cv -> C, CvU -> C
50 ;; where C: consonant, V: vowel upper, v: vowel lower,
51 ;; T: tone mark, U: tone mark and upper sign.
52 ;; Special rule: The sign `
\e,Tl
\e(B' can be put on the vowel `
\e,TT
\e(B'.
55 (defvar thai-composition-pattern
56 "\\cc\\(\\cu\\|\\cI\\cU\\|\\cv\\ct?\\)\\|\\cv\\ct\\|\\cI\\cU"
57 "Regular expression matching a Thai composite sequence.")
59 (defun thai-self-insert-command (&optional n)
60 "Insert the Thai character you type.
61 The character will be composed with the surrounding Thai character
66 (self-insert-command n)
67 (or thai-auto-composition-mode
68 (thai-auto-composition (1- (point)) (point) 0))))
70 (let ((l '((?
\e,T!
\e(B consonant "LETTER KO KAI") ; 0xA1
71 (?
\e,T"
\e(B consonant "LETTER KHO KHAI") ; 0xA2
72 (?
\e,T#
\e(B consonant "LETTER KHO KHUAT") ; 0xA3
73 (?
\e,T$
\e(B consonant "LETTER KHO KHWAI") ; 0xA4
74 (?
\e,T%
\e(B consonant "LETTER KHO KHON") ; 0xA5
75 (?
\e,T&
\e(B consonant "LETTER KHO RAKHANG") ; 0xA6
76 (?
\e,T'
\e(B consonant "LETTER NGO NGU") ; 0xA7
77 (?
\e,T(
\e(B consonant "LETTER CHO CHAN") ; 0xA8
78 (?
\e,T)
\e(B consonant "LETTER CHO CHING") ; 0xA9
79 (?
\e,T*
\e(B consonant "LETTER CHO CHANG") ; 0xAA
80 (?
\e,T+
\e(B consonant "LETTER SO SO") ; 0xAB
81 (?
\e,T,
\e(B consonant "LETTER CHO CHOE") ; 0xAC
82 (?
\e,T-
\e(B consonant "LETTER YO YING") ; 0xAD
83 (?
\e,T.
\e(B consonant "LETTER DO CHADA") ; 0xAE
84 (?
\e,T/
\e(B consonant "LETTER TO PATAK") ; 0xAF
85 (?
\e,T0
\e(B consonant "LETTER THO THAN") ; 0xB0
86 (?
\e,T1
\e(B consonant "LETTER THO NANGMONTHO") ; 0xB1
87 (?
\e,T2
\e(B consonant "LETTER THO PHUTHAO") ; 0xB2
88 (?
\e,T3
\e(B consonant "LETTER NO NEN") ; 0xB3
89 (?
\e,T4
\e(B consonant "LETTER DO DEK") ; 0xB4
90 (?
\e,T5
\e(B consonant "LETTER TO TAO") ; 0xB5
91 (?
\e,T6
\e(B consonant "LETTER THO THUNG") ; 0xB6
92 (?
\e,T7
\e(B consonant "LETTER THO THAHAN") ; 0xB7
93 (?
\e,T8
\e(B consonant "LETTER THO THONG") ; 0xB8
94 (?
\e,T9
\e(B consonant "LETTER NO NU") ; 0xB9
95 (?
\e,T:
\e(B consonant "LETTER BO BAIMAI") ; 0xBA
96 (?
\e,T;
\e(B consonant "LETTER PO PLA") ; 0xBB
97 (?
\e,T<
\e(B consonant "LETTER PHO PHUNG") ; 0xBC
98 (?
\e,T=
\e(B consonant "LETTER FO FA") ; 0xBD
99 (?
\e,T>
\e(B consonant "LETTER PHO PHAN") ; 0xBE
100 (?
\e,T?
\e(B consonant "LETTER FO FAN") ; 0xBF
101 (?
\e,T@
\e(B consonant "LETTER PHO SAMPHAO") ; 0xC0
102 (?
\e,TA
\e(B consonant "LETTER MO MA") ; 0xC1
103 (?
\e,TB
\e(B consonant "LETTER YO YAK") ; 0xC2
104 (?
\e,TC
\e(B consonant "LETTER RO RUA") ; 0xC3
105 (?
\e,TD
\e(B vowel-base "LETTER RU (Pali vowel letter)") ; 0xC4
106 (?
\e,TE
\e(B consonant "LETTER LO LING") ; 0xC5
107 (?
\e,TF
\e(B vowel-base "LETTER LU (Pali vowel letter)") ; 0xC6
108 (?
\e,TG
\e(B consonant "LETTER WO WAEN") ; 0xC7
109 (?
\e,TH
\e(B consonant "LETTER SO SALA") ; 0xC8
110 (?
\e,TI
\e(B consonant "LETTER SO RUSI") ; 0xC9
111 (?
\e,TJ
\e(B consonant "LETTER SO SUA") ; 0xCA
112 (?
\e,TK
\e(B consonant "LETTER HO HIP") ; 0xCB
113 (?
\e,TL
\e(B consonant "LETTER LO CHULA") ; 0xCC
114 (?
\e,TM
\e(B consonant "LETTER O ANG") ; 0xCD
115 (?
\e,TN
\e(B consonant "LETTER HO NOK HUK") ; 0xCE
116 (?
\e,TO
\e(B special "PAI YAN NOI (abbreviation)") ; 0xCF
117 (?
\e,TP
\e(B vowel-base "VOWEL SIGN SARA A") ; 0xD0
118 (?
\e,TQ
\e(B vowel-upper "VOWEL SIGN MAI HAN-AKAT N/S-T") ; 0xD1
119 (?
\e,TR
\e(B vowel-base "VOWEL SIGN SARA AA") ; 0xD2
120 (?
\e,TS
\e(B vowel-base "VOWEL SIGN SARA AM") ; 0xD3
121 (?
\e,TT
\e(B vowel-upper "VOWEL SIGN SARA I N/S-T") ; 0xD4
122 (?
\e,TU
\e(B vowel-upper "VOWEL SIGN SARA II N/S-T") ; 0xD5
123 (?
\e,TV
\e(B vowel-upper "VOWEL SIGN SARA UE N/S-T") ; 0xD6
124 (?
\e,TW
\e(B vowel-upper "VOWEL SIGN SARA UEE N/S-T") ; 0xD7
125 (?
\e,TX
\e(B vowel-lower "VOWEL SIGN SARA U N/S-B") ; 0xD8
126 (?
\e,TY
\e(B vowel-lower "VOWEL SIGN SARA UU N/S-B") ; 0xD9
127 (?
\e,TZ
\e(B vowel-lower "VOWEL SIGN PHINTHU N/S-B (Pali virama)") ; 0xDA
128 (?
\e,T[
\e(B invalid nil) ; 0xDA
129 (?
\e,T\
\e(B invalid nil) ; 0xDC
130 (?
\e,T]
\e(B invalid nil) ; 0xDC
131 (?
\e,T^
\e(B invalid nil) ; 0xDC
132 (?
\e,T_
\e(B special "BAHT SIGN (currency symbol)") ; 0xDF
133 (?
\e,T`
\e(B vowel-base "VOWEL SIGN SARA E") ; 0xE0
134 (?
\e,Ta
\e(B vowel-base "VOWEL SIGN SARA AE") ; 0xE1
135 (?
\e,Tb
\e(B vowel-base "VOWEL SIGN SARA O") ; 0xE2
136 (?
\e,Tc
\e(B vowel-base "VOWEL SIGN SARA MAI MUAN") ; 0xE3
137 (?
\e,Td
\e(B vowel-base "VOWEL SIGN SARA MAI MALAI") ; 0xE4
138 (?
\e,Te
\e(B vowel-base "LAK KHANG YAO") ; 0xE5
139 (?
\e,Tf
\e(B special "MAI YAMOK (repetion)") ; 0xE6
140 (?
\e,Tg
\e(B sign-upper "VOWEL SIGN MAI TAI KHU N/S-T") ; 0xE7
141 (?
\e,Th
\e(B tone "TONE MAI EK N/S-T") ; 0xE8
142 (?
\e,Ti
\e(B tone "TONE MAI THO N/S-T") ; 0xE9
143 (?
\e,Tj
\e(B tone "TONE MAI TRI N/S-T") ; 0xEA
144 (?
\e,Tk
\e(B tone "TONE MAI CHATTAWA N/S-T") ; 0xEB
145 (?
\e,Tl
\e(B sign-upper "THANTHAKHAT N/S-T (cancellation mark)") ; 0xEC
146 (?
\e,Tm
\e(B sign-upper "NIKKHAHIT N/S-T (final nasal)") ; 0xED
147 (?
\e,Tn
\e(B sign-upper "YAMAKKAN N/S-T") ; 0xEE
148 (?
\e,To
\e(B special "FONRMAN") ; 0xEF
149 (?
\e,Tp
\e(B special "DIGIT ZERO") ; 0xF0
150 (?
\e,Tq
\e(B special "DIGIT ONE") ; 0xF1
151 (?
\e,Tr
\e(B special "DIGIT TWO") ; 0xF2
152 (?
\e,Ts
\e(B special "DIGIT THREE") ; 0xF3
153 (?
\e,Tt
\e(B special "DIGIT FOUR") ; 0xF4
154 (?
\e,Tu
\e(B special "DIGIT FIVE") ; 0xF5
155 (?
\e,Tv
\e(B special "DIGIT SIX") ; 0xF6
156 (?
\e,Tw
\e(B special "DIGIT SEVEN") ; 0xF7
157 (?
\e,Tx
\e(B special "DIGIT EIGHT") ; 0xF8
158 (?
\e,Ty
\e(B special "DIGIT NINE") ; 0xF9
159 (?
\e,Tz
\e(B special "ANGKHANKHU (ellipsis)") ; 0xFA
160 (?
\e,T{
\e(B special "KHOMUT (beginning of religious texts)") ; 0xFB
161 (?
\e,T|
\e(B invalid nil) ; 0xFC
162 (?
\e,T}
\e(B invalid nil) ; 0xFD
163 (?
\e,T~
\e(B invalid nil) ; 0xFE
165 ;; Unicode equivalents
166 (?
\e$,1Ba
\e(B consonant "LETTER KO KAI")
167 (?
\e$,1Bb
\e(B consonant "LETTER KHO KHAI")
168 (?
\e$,1Bc
\e(B consonant "LETTER KHO KHUAT")
169 (?
\e$,1Bd
\e(B consonant "LETTER KHO KHWAI")
170 (?
\e$,1Be
\e(B consonant "LETTER KHO KHON")
171 (?
\e$,1Bf
\e(B consonant "LETTER KHO RAKHANG")
172 (?
\e$,1Bg
\e(B consonant "LETTER NGO NGU")
173 (?
\e$,1Bh
\e(B consonant "LETTER CHO CHAN")
174 (?
\e$,1Bi
\e(B consonant "LETTER CHO CHING")
175 (?
\e$,1Bj
\e(B consonant "LETTER CHO CHANG")
176 (?
\e$,1Bk
\e(B consonant "LETTER SO SO")
177 (?
\e$,1Bl
\e(B consonant "LETTER CHO CHOE")
178 (?
\e$,1Bm
\e(B consonant "LETTER YO YING")
179 (?
\e$,1Bn
\e(B consonant "LETTER DO CHADA")
180 (?
\e$,1Bo
\e(B consonant "LETTER TO PATAK")
181 (?
\e$,1Bp
\e(B consonant "LETTER THO THAN")
182 (?
\e$,1Bq
\e(B consonant "LETTER THO NANGMONTHO")
183 (?
\e$,1Br
\e(B consonant "LETTER THO PHUTHAO")
184 (?
\e$,1Bs
\e(B consonant "LETTER NO NEN")
185 (?
\e$,1Bt
\e(B consonant "LETTER DO DEK")
186 (?
\e$,1Bu
\e(B consonant "LETTER TO TAO")
187 (?
\e$,1Bv
\e(B consonant "LETTER THO THUNG")
188 (?
\e$,1Bw
\e(B consonant "LETTER THO THAHAN")
189 (?
\e$,1Bx
\e(B consonant "LETTER THO THONG")
190 (?
\e$,1By
\e(B consonant "LETTER NO NU")
191 (?
\e$,1Bz
\e(B consonant "LETTER BO BAIMAI")
192 (?
\e$,1B{
\e(B consonant "LETTER PO PLA")
193 (?
\e$,1B|
\e(B consonant "LETTER PHO PHUNG")
194 (?
\e$,1B}
\e(B consonant "LETTER FO FA")
195 (?
\e$,1B~
\e(B consonant "LETTER PHO PHAN")
196 (?
\e$,1B
\7f\e(B consonant "LETTER FO FAN")
197 (?
\e$,1C
\e(B consonant "LETTER PHO SAMPHAO")
198 (?
\e$,1C!
\e(B consonant "LETTER MO MA")
199 (?
\e$,1C"
\e(B consonant "LETTER YO YAK")
200 (?
\e$,1C#
\e(B consonant "LETTER RO RUA")
201 (?
\e$,1C$
\e(B vowel-base "LETTER RU (Pali vowel letter)")
202 (?
\e$,1C%
\e(B consonant "LETTER LO LING")
203 (?
\e$,1C&
\e(B vowel-base "LETTER LU (Pali vowel letter)")
204 (?
\e$,1C'
\e(B consonant "LETTER WO WAEN")
205 (?
\e$,1C(
\e(B consonant "LETTER SO SALA")
206 (?
\e$,1C)
\e(B consonant "LETTER SO RUSI")
207 (?
\e$,1C*
\e(B consonant "LETTER SO SUA")
208 (?
\e$,1C+
\e(B consonant "LETTER HO HIP")
209 (?
\e$,1C,
\e(B consonant "LETTER LO CHULA")
210 (?
\e$,1C-
\e(B consonant "LETTER O ANG")
211 (?
\e$,1C.
\e(B consonant "LETTER HO NOK HUK")
212 (?
\e$,1C/
\e(B special "PAI YAN NOI (abbreviation)")
213 (?
\e$,1C0
\e(B vowel-base "VOWEL SIGN SARA A")
214 (?
\e$,1C1
\e(B vowel-upper "VOWEL SIGN MAI HAN-AKAT N/S-T")
215 (?
\e$,1C2
\e(B vowel-base "VOWEL SIGN SARA AA")
216 (?
\e$,1C3
\e(B vowel-base "VOWEL SIGN SARA AM")
217 (?
\e$,1C4
\e(B vowel-upper "VOWEL SIGN SARA I N/S-T")
218 (?
\e$,1C5
\e(B vowel-upper "VOWEL SIGN SARA II N/S-T")
219 (?
\e$,1C6
\e(B vowel-upper "VOWEL SIGN SARA UE N/S-T")
220 (?
\e$,1C7
\e(B vowel-upper "VOWEL SIGN SARA UEE N/S-T")
221 (?
\e$,1C8
\e(B vowel-lower "VOWEL SIGN SARA U N/S-B")
222 (?
\e$,1C9
\e(B vowel-lower "VOWEL SIGN SARA UU N/S-B")
223 (?
\e$,1C:
\e(B vowel-lower "VOWEL SIGN PHINTHU N/S-B (Pali virama)")
224 (?
\e$,1C?
\e(B special "BAHT SIGN (currency symbol)")
225 (?
\e$,1C@
\e(B vowel-base "VOWEL SIGN SARA E")
226 (?
\e$,1CA
\e(B vowel-base "VOWEL SIGN SARA AE")
227 (?
\e$,1CB
\e(B vowel-base "VOWEL SIGN SARA O")
228 (?
\e$,1CC
\e(B vowel-base "VOWEL SIGN SARA MAI MUAN")
229 (?
\e$,1CD
\e(B vowel-base "VOWEL SIGN SARA MAI MALAI")
230 (?
\e$,1CE
\e(B vowel-base "LAK KHANG YAO")
231 (?
\e$,1CF
\e(B special "MAI YAMOK (repetion)")
232 (?
\e$,1CG
\e(B sign-upper "VOWEL SIGN MAI TAI KHU N/S-T")
233 (?
\e$,1CH
\e(B tone "TONE MAI EK N/S-T")
234 (?
\e$,1CI
\e(B tone "TONE MAI THO N/S-T")
235 (?
\e$,1CJ
\e(B tone "TONE MAI TRI N/S-T")
236 (?
\e$,1CK
\e(B tone "TONE MAI CHATTAWA N/S-T")
237 (?
\e$,1CL
\e(B sign-upper "THANTHAKHAT N/S-T (cancellation mark)")
238 (?
\e$,1CM
\e(B sign-upper "NIKKHAHIT N/S-T (final nasal)")
239 (?
\e$,1CN
\e(B sign-upper "YAMAKKAN N/S-T")
240 (?
\e$,1CO
\e(B special "FONRMAN")
241 (?
\e$,1CP
\e(B special "DIGIT ZERO")
242 (?
\e$,1CQ
\e(B special "DIGIT ONE")
243 (?
\e$,1CR
\e(B special "DIGIT TWO")
244 (?
\e$,1CS
\e(B special "DIGIT THREE")
245 (?
\e$,1CT
\e(B special "DIGIT FOUR")
246 (?
\e$,1CU
\e(B special "DIGIT FIVE")
247 (?
\e$,1CV
\e(B special "DIGIT SIX")
248 (?
\e$,1CW
\e(B special "DIGIT SEVEN")
249 (?
\e$,1CX
\e(B special "DIGIT EIGHT")
250 (?
\e$,1CY
\e(B special "DIGIT NINE")
251 (?
\e$,1CZ
\e(B special "ANGKHANKHU (ellipsis)")
252 (?
\e$,1C[
\e(B special "KHOMUT (beginning of religious texts)")
256 (setq elm (car l) l (cdr l))
257 (let ((char (car elm))
259 (put-char-code-property char 'phonetic-type ptype)
260 (cond ((eq ptype 'consonant)
261 (modify-category-entry char ?c thai-category-table)
262 (global-set-key (vector char) 'thai-self-insert-command))
263 ((memq ptype '(vowel-upper vowel-lower))
264 (modify-category-entry char ?v thai-category-table)
265 (if (or (= char ?
\e,TT
\e(B) (= char ?
\e$,1C4
\e(B))
266 ;; Give category `I' to "SARA I".
267 (modify-category-entry char ?I thai-category-table))
268 (global-set-key (vector char) 'thai-self-insert-command))
270 (modify-category-entry char ?t thai-category-table)
271 (modify-category-entry char ?u thai-category-table)
272 (global-set-key (vector char) 'thai-self-insert-command))
273 ((eq ptype 'sign-upper)
274 (modify-category-entry char ?u thai-category-table)
275 (if (or (= char ?
\e,Tl
\e(B) (= char ?
\e$,1CL
\e(B))
276 ;; Give category `U' to "THANTHAKHAT".
277 (modify-category-entry char ?U thai-category-table))
278 (global-set-key (vector char) 'thai-self-insert-command)))
279 (put-char-code-property char 'name (nth 2 elm)))))
281 (defun thai-compose-syllable (beg end &optional category-set string)
284 (char-category-set (if string (aref string beg) (char-after beg)))))
285 (if (aref category-set ?c)
286 ;; Starting with a consonant. We do relative composition.
288 (compose-string string beg end)
289 (compose-region beg end))
290 ;; Vowel tone sequence.
292 (compose-string string beg end (list (aref string beg) '(Bc . Bc)
293 (aref string (1+ beg))))
294 (compose-region beg end (list (char-after beg) '(Bc . Bc)
295 (char-after (1+ beg))))))
299 (defun thai-compose-region (beg end)
300 "Compose Thai characters in the region.
301 When called from a program, expects two arguments,
302 positions (integers or markers) specifying the region."
306 (narrow-to-region beg end)
307 (goto-char (point-min))
308 (with-category-table thai-category-table
309 (while (re-search-forward thai-composition-pattern nil t)
310 (setq beg (match-beginning 0) end (match-end 0))
311 (if (and (> pos beg) (< pos end))
313 (thai-compose-syllable beg end
314 (char-category-set (char-after beg))))))
318 (defun thai-compose-string (string)
319 "Compose Thai characters in STRING and return the resulting string."
320 (with-category-table thai-category-table
322 (while (setq idx (string-match thai-composition-pattern string idx))
323 (thai-compose-syllable idx (match-end 0) nil string)
324 (setq idx (match-end 0)))))
328 (defun thai-compose-buffer ()
329 "Compose Thai characters in the current buffer."
331 (thai-compose-region (point-min) (point-max)))
334 (defun thai-post-read-conversion (len)
335 (thai-compose-region (point) (+ (point) len))
339 (defun thai-composition-function (from to pattern &optional string)
340 "Compose Thai text in the region FROM and TO.
341 The text matches the regular expression PATTERN.
342 Optional 4th argument STRING, if non-nil, is a string containing text
345 The return value is number of composed characters."
346 (when (and (not thai-auto-composition-mode)
348 (with-category-table thai-category-table
350 (if (eq (string-match thai-composition-pattern string from) from)
351 (thai-compose-syllable from (match-end 0) nil string))
354 (and (looking-at thai-composition-pattern)
355 (setq to (match-end 0))))
356 (thai-compose-syllable from to))))))
358 (defun thai-auto-composition (beg end len)
359 (with-category-table thai-category-table
361 (while (and (> beg (point-min))
362 (setq category-set (char-category-set (char-after (1- beg))))
363 (or (aref category-set ?v) (aref category-set ?u)))
365 (if (and (> beg (point-min))
366 (aref (char-category-set (char-after (1- beg))) ?c))
368 (while (and (< end (point-max))
369 (setq category-set (char-category-set (char-after end)))
370 (or (aref category-set ?v) (aref category-set ?u)))
373 (thai-compose-region beg end)))))
375 (put 'thai-auto-composition-mode 'permanent-local t)
378 (define-minor-mode thai-auto-composition-mode
379 "Minor mode for automatically correct Thai character composition."
381 (cond ((null thai-auto-composition-mode)
382 (remove-hook 'after-change-functions 'thai-auto-composition))
384 (add-hook 'after-change-functions 'thai-auto-composition))))
386 ;; Thai-word-mode requires functions in the feature `thai-word'.
389 (defvar thai-word-mode-map
390 (let ((map (make-sparse-keymap)))
391 (define-key map [remap forward-word] 'thai-forward-word)
392 (define-key map [remap backward-word] 'thai-backward-word)
393 (define-key map [remap kill-word] 'thai-kill-word)
394 (define-key map [remap backward-kill-word] 'thai-backward-kill-word)
395 (define-key map [remap transpose-words] 'thai-transpose-words)
397 "Keymap for `thai-word-mode'.")
399 (define-minor-mode thai-word-mode
400 "Minor mode to make word-oriented commands aware of Thai words.
401 The commands affected are \\[forward-word], \\[backward-word], \\[kill-word], \\[backward-kill-word], \\[transpose-words], and \\[fill-paragraph]."
402 :global t :group 'mule
403 (cond (thai-word-mode
404 ;; This enables linebreak between Thai characters.
405 (modify-category-entry (make-char 'thai-tis620) ?|)
406 ;; This enables linebreak at a Thai word boundary.
407 (put-charset-property 'thai-tis620 'fill-find-break-point-function
408 'thai-fill-find-break-point))
410 (modify-category-entry (make-char 'thai-tis620) ?| nil t)
411 (put-charset-property 'thai-tis620 'fill-find-break-point-function
414 ;; Function to call on entering the Thai language environment.
415 (defun setup-thai-language-environment-internal ()
418 ;; Function to call on exiting the Thai language environment.
419 (defun exit-thai-language-environment-internal ()
425 ;;; arch-tag: 59425d6a-8cf9-4e06-a6ab-8ab7dc7a7a97
426 ;;; thai-util.el ends here