mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-11 09:20:51 +00:00
299 lines
9.1 KiB
EmacsLisp
299 lines
9.1 KiB
EmacsLisp
;;; viet-util.el --- utilities for Vietnamese -*- coding: utf-8; -*-
|
|
|
|
;; Copyright (C) 1998, 2001-2016 Free Software Foundation, Inc.
|
|
;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
|
;; 2005, 2006, 2007, 2008, 2009, 2010, 2011
|
|
;; National Institute of Advanced Industrial Science and Technology (AIST)
|
|
;; Registration Number H14PRO021
|
|
;; Copyright (C) 2003
|
|
;; National Institute of Advanced Industrial Science and Technology (AIST)
|
|
;; Registration Number H13PRO009
|
|
|
|
;; Keywords: mule, multilingual, Vietnamese
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Vietnamese uses ASCII characters and additional 134 unique
|
|
;; characters (these are Latin alphabets with various diacritical and
|
|
;; tone marks). As far as I know, Vietnamese now has 5 different ways
|
|
;; for representing these characters: VISCII, TCVN-5712, VPS, VIQR,
|
|
;; and Unicode. VISCII, TCVN-5712 and VPS are simple 1-byte code
|
|
;; which assigns 134 unique characters in control-code area
|
|
;; (0x00..0x1F) and right half area (0x80..0xFF). VIQR is a mnemonic
|
|
;; encoding specification representing diacritical marks by following
|
|
;; ASCII characters.
|
|
|
|
;;; Code:
|
|
|
|
(defvar viet-viscii-nonascii-translation-table)
|
|
|
|
;;;###autoload
|
|
(defun viet-encode-viscii-char (char)
|
|
"Return VISCII character code of CHAR if appropriate."
|
|
(encode-char char 'viscii))
|
|
|
|
;; VIQR is a mnemonic encoding specification for Vietnamese.
|
|
;; It represents diacritical marks by ASCII characters as follows:
|
|
;; ------------+----------+--------
|
|
;; mark | mnemonic | example
|
|
;; ------------+----------+---------
|
|
;; breve | ( | a( -> ă
|
|
;; circumflex | ^ | a^ -> â
|
|
;; horn | + | o+ -> ơ
|
|
;; ------------+----------+---------
|
|
;; acute | ' | a' -> á
|
|
;; grave | ` | a` -> à
|
|
;; hook above | ? | a? -> ả
|
|
;; tilde | ~ | a~ -> ã
|
|
;; dot below | . | a. -> ạ
|
|
;; ------------+----------+---------
|
|
;; d bar | dd | dd -> đ
|
|
;; ------------+----------+---------
|
|
|
|
(defvar viet-viqr-alist
|
|
'(;; lowercase
|
|
(?ắ . "a('") ; 161
|
|
(?ằ . "a(`") ; 162
|
|
(?ặ . "a(.") ; 163
|
|
(?ấ . "a^'") ; 164
|
|
(?ầ . "a^`") ; 165
|
|
(?ẩ . "a^?") ; 166
|
|
(?ậ . "a^.") ; 167
|
|
(?ẽ . "e~") ; 168
|
|
(?ẹ . "e.") ; 169
|
|
(?ế . "e^'") ; 170
|
|
(?ề . "e^`") ; 171
|
|
(?ể . "e^?") ; 172
|
|
(?ễ . "e^~") ; 173
|
|
(?ệ . "e^.") ; 174
|
|
(?ố . "o^'") ; 175
|
|
(?ồ . "o^`") ; 176
|
|
(?ổ . "o^?") ; 177
|
|
(?ỗ . "o^~") ; 178
|
|
(?ộ . "o^.") ; 181
|
|
(?ờ . "o+`") ; 182
|
|
(?ở . "o+?") ; 183
|
|
(?ị . "i.") ; 184
|
|
(?ơ . "o+") ; 189
|
|
(?ớ . "o+'") ; 190
|
|
(?ẳ . "a(?") ; 198
|
|
(?ẵ . "a(~") ; 199
|
|
(?ỳ . "y`") ; 207
|
|
(?ứ . "u+'") ; 209
|
|
(?ạ . "a.") ; 213
|
|
(?ỷ . "y?") ; 214
|
|
(?ừ . "u+`") ; 215
|
|
(?ử . "u+?") ; 216
|
|
(?ỹ . "y~") ; 219
|
|
(?ỵ . "y.") ; 220
|
|
(?ỡ . "o+~") ; 222
|
|
(?ư . "u+") ; 223
|
|
(?à . "a`") ; 224
|
|
(?á . "a'") ; 225
|
|
(?â . "a^") ; 226
|
|
(?ã . "a~") ; 227
|
|
(?ả . "a?") ; 228
|
|
(?ă . "a(") ; 229
|
|
(?ữ . "u+~") ; 230
|
|
(?ẫ . "a^~") ; 231
|
|
(?è . "e`") ; 232
|
|
(?é . "e'") ; 233
|
|
(?ê . "e^") ; 234
|
|
(?ẻ . "e?") ; 235
|
|
(?ì . "i`") ; 236
|
|
(?í . "i'") ; 237
|
|
(?ĩ . "i~") ; 238
|
|
(?ỉ . "i?") ; 239
|
|
(?đ . "dd") ; 240
|
|
(?ự . "u+.") ; 241
|
|
(?ò . "o`") ; 242
|
|
(?ó . "o'") ; 243
|
|
(?ô . "o^") ; 244
|
|
(?õ . "o~") ; 245
|
|
(?ỏ . "o?") ; 246
|
|
(?ọ . "o.") ; 247
|
|
(?ụ . "u.") ; 248
|
|
(?ù . "u`") ; 249
|
|
(?ú . "u'") ; 250
|
|
(?ũ . "u~") ; 251
|
|
(?ủ . "u?") ; 252
|
|
(?ý . "y'") ; 253
|
|
(?ợ . "o+.") ; 254
|
|
|
|
;; upper case
|
|
(?Ắ . "A('") ; 161
|
|
(?Ằ . "A(`") ; 162
|
|
(?Ặ . "A(.") ; 163
|
|
(?Ấ . "A^'") ; 164
|
|
(?Ầ . "A^`") ; 165
|
|
(?Ẩ . "A^?") ; 166
|
|
(?Ậ . "A^.") ; 167
|
|
(?Ẽ . "E~") ; 168
|
|
(?Ẹ . "E.") ; 169
|
|
(?Ế . "E^'") ; 170
|
|
(?Ề . "E^`") ; 171
|
|
(?Ể . "E^?") ; 172
|
|
(?Ễ . "E^~") ; 173
|
|
(?Ệ . "E^.") ; 174
|
|
(?Ố . "O^'") ; 175
|
|
(?Ồ . "O^`") ; 176
|
|
(?Ổ . "O^?") ; 177
|
|
(?Ỗ . "O^~") ; 178
|
|
(?Ộ . "O^.") ; 181
|
|
(?Ờ . "O+`") ; 182
|
|
(?Ở . "O+?") ; 183
|
|
(?Ị . "I.") ; 184
|
|
(?Ơ . "O+") ; 189
|
|
(?Ớ . "O+'") ; 190
|
|
(?Ẳ . "A(?") ; 198
|
|
(?Ẵ . "A(~") ; 199
|
|
(?Ỳ . "Y`") ; 207
|
|
(?Ứ . "U+'") ; 209
|
|
(?Ạ . "A.") ; 213
|
|
(?Ỷ . "Y?") ; 214
|
|
(?Ừ . "U+`") ; 215
|
|
(?Ử . "U+?") ; 216
|
|
(?Ỹ . "Y~") ; 219
|
|
(?Ỵ . "Y.") ; 220
|
|
(?Ỡ . "O+~") ; 222
|
|
(?Ư . "U+") ; 223
|
|
(?À . "A`") ; 224
|
|
(?Á . "A'") ; 225
|
|
(? . "A^") ; 226
|
|
(?Ã . "A~") ; 227
|
|
(?Ả . "A?") ; 228
|
|
(?Ă . "A(") ; 229
|
|
(?Ữ . "U+~") ; 230
|
|
(?Ẫ . "A^~") ; 231
|
|
(?È . "E`") ; 232
|
|
(?É . "E'") ; 233
|
|
(?Ê . "E^") ; 234
|
|
(?Ẻ . "E?") ; 235
|
|
(?Ì . "I`") ; 236
|
|
(?Í . "I'") ; 237
|
|
(?Ĩ . "I~") ; 238
|
|
(?Ỉ . "I?") ; 239
|
|
(?Đ . "DD") ; 240
|
|
(?Đ . "dD") ; 240
|
|
(?Đ . "Dd") ; 240
|
|
(?Ự . "U+.") ; 241
|
|
(?Ò . "O`") ; 242
|
|
(?Ó . "O'") ; 243
|
|
(?Ô . "O^") ; 244
|
|
(?Õ . "O~") ; 245
|
|
(?Ỏ . "O?") ; 246
|
|
(?Ọ . "O.") ; 247
|
|
(?Ụ . "U.") ; 248
|
|
(?Ù . "U`") ; 249
|
|
(?Ú . "U'") ; 250
|
|
(?Ũ . "U~") ; 251
|
|
(?Ủ . "U?") ; 252
|
|
(?Ý . "Y'") ; 253
|
|
(?Ợ . "O+.") ; 254
|
|
|
|
;; escape from composition
|
|
(?\( . "\\(") ; breve (left parenthesis)
|
|
(?^ . "\\^") ; circumflex (caret)
|
|
(?+ . "\\+") ; horn (plus sign)
|
|
(?' . "\\'") ; acute (apostrophe)
|
|
(?` . "\\`") ; grave (backquote)
|
|
(?? . "\\?") ; hook above (question mark)
|
|
(?~ . "\\~") ; tilde (tilde)
|
|
(?. . "\\.") ; dot below (period)
|
|
(?d . "\\d") ; d-bar (d)
|
|
(?\\ . "\\\\") ; literal backslash
|
|
)
|
|
"Alist of Vietnamese characters vs corresponding `VIQR' string.")
|
|
|
|
;; Regular expression matching single Vietnamese character represented
|
|
;; by VIQR.
|
|
(defconst viqr-regexp
|
|
"[aeiouyAEIOUY]\\([(^+]?['`?~.]\\|[(^+]\\)\\|[Dd][Dd]")
|
|
|
|
;;;###autoload
|
|
(defun viet-decode-viqr-region (from to)
|
|
"Convert `VIQR' mnemonics of the current region to Vietnamese characters.
|
|
When called from a program, expects two arguments,
|
|
positions (integers or markers) specifying the stretch of the region."
|
|
(interactive "r")
|
|
(save-restriction
|
|
(narrow-to-region from to)
|
|
(goto-char (point-min))
|
|
(while (re-search-forward viqr-regexp nil t)
|
|
(let* ((viqr (buffer-substring (match-beginning 0) (match-end 0)))
|
|
(ch (car (rassoc viqr viet-viqr-alist))))
|
|
(if ch
|
|
(progn
|
|
(delete-region (match-beginning 0) (match-end 0))
|
|
(insert ch)))))))
|
|
|
|
;;;###autoload
|
|
(defun viet-decode-viqr-buffer ()
|
|
"Convert `VIQR' mnemonics of the current buffer to Vietnamese characters."
|
|
(interactive)
|
|
(viet-decode-viqr-region (point-min) (point-max)))
|
|
|
|
;;;###autoload
|
|
(defun viet-encode-viqr-region (from to)
|
|
"Convert Vietnamese characters of the current region to `VIQR' mnemonics.
|
|
When called from a program, expects two arguments,
|
|
positions (integers or markers) specifying the stretch of the region."
|
|
(interactive "r")
|
|
(save-restriction
|
|
(narrow-to-region from to)
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\\cv" nil t)
|
|
(let* ((ch (preceding-char))
|
|
(viqr (cdr (assq ch viet-viqr-alist))))
|
|
(if viqr
|
|
(progn
|
|
(delete-char -1)
|
|
(insert viqr)))))))
|
|
|
|
;;;###autoload
|
|
(defun viet-encode-viqr-buffer ()
|
|
"Convert Vietnamese characters of the current buffer to `VIQR' mnemonics."
|
|
(interactive)
|
|
(viet-encode-viqr-region (point-min) (point-max)))
|
|
|
|
;;;###autoload
|
|
(defun viqr-post-read-conversion (len)
|
|
(save-excursion
|
|
(save-restriction
|
|
(narrow-to-region (point) (+ (point) len))
|
|
(let ((buffer-modified-p (buffer-modified-p)))
|
|
(viet-decode-viqr-region (point-min) (point-max))
|
|
(set-buffer-modified-p buffer-modified-p)
|
|
(- (point-max) (point-min))))))
|
|
|
|
;;;###autoload
|
|
(defun viqr-pre-write-conversion (from to)
|
|
(let ((old-buf (current-buffer)))
|
|
(set-buffer (generate-new-buffer " *temp*"))
|
|
(if (stringp from)
|
|
(insert from)
|
|
(insert-buffer-substring old-buf from to))
|
|
(viet-encode-viqr-region (point-min) (point-max))
|
|
;; Should return nil as annotations.
|
|
nil))
|
|
|
|
;;;
|
|
(provide 'viet-util)
|
|
|
|
;;; viet-util.el ends here
|