lisp/language/vietnamese.el

   1 ;;; vietnamese.el --- support for Vietnamese -*- coding: iso-2022-7bit; -*-
   2
   3 ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
   4 ;; Licensed to the Free Software Foundation.
   5
   6 ;; Keywords: multilingual, Vietnamese
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; For Vietnames, the character sets VISCII and VSCII are supported.
  28
  29 ;;; Code:
  30
  31 (defvar viet-viscii-decode-table
  32   [;; VISCII is a full 8-bit code.
  33    0 1 ?\e,2F\e(B 3 4 ?\e,2G\e(B ?\e,2g\e(B 7 8 9 10 11 12 13 14 15
  34    16 17 18 19 ?\e,2V\e(B 21 22 23 24 ?\e,2[\e(B 26 27 28 29 ?\e,2\\e(B 31
  35    32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
  36    48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  37    64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
  38    80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
  39    96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
  40    112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
  41    ?\e,2U\e(B ?\e,2!\e(B ?\e,2"\e(B ?\e,2#\e(B ?\e,2$\e(B ?\e,2%\e(B ?\e,2&\e(B ?\e,2'\e(B ?\e,2(\e(B ?\e,2)\e(B ?\e,2*\e(B ?\e,2+\e(B ?\e,2,\e(B ?\e,2-\e(B ?\e,2.\e(B ?\e,2/\e(B
  42    ?\e,20\e(B ?\e,21\e(B ?\e,22\e(B ?\e,25\e(B ?\e,2~\e(B ?\e,2>\e(B ?\e,26\e(B ?\e,27\e(B ?\e,28\e(B ?\e,2v\e(B ?\e,2w\e(B ?\e,2o\e(B ?\e,2|\e(B ?\e,2{\e(B ?\e,2x\e(B ?\e,2O\e(B
  43    ?\e,2u\e(B ?\e,1!\e(B ?\e,1"\e(B ?\e,1#\e(B ?\e,1$\e(B ?\e,1%\e(B ?\e,1&\e(B ?\e,1'\e(B ?\e,1(\e(B ?\e,1)\e(B ?\e,1*\e(B ?\e,1+\e(B ?\e,1,\e(B ?\e,1-\e(B ?\e,1.\e(B ?\e,1/\e(B
  44    ?\e,10\e(B ?\e,11\e(B ?\e,12\e(B ?\e,2^\e(B ?\e,2=\e(B ?\e,15\e(B ?\e,16\e(B ?\e,17\e(B ?\e,18\e(B ?\e,2q\e(B ?\e,2Q\e(B ?\e,2W\e(B ?\e,2X\e(B ?\e,1=\e(B ?\e,1>\e(B ?\e,2_\e(B
  45    ?\e,2`\e(B ?\e,2a\e(B ?\e,2b\e(B ?\e,2c\e(B ?\e,2d\e(B ?\e,2e\e(B ?\e,1F\e(B ?\e,1G\e(B ?\e,2h\e(B ?\e,2i\e(B ?\e,2j\e(B ?\e,2k\e(B ?\e,2l\e(B ?\e,2m\e(B ?\e,2n\e(B ?\e,1O\e(B
  46    ?\e,2p\e(B ?\e,1Q\e(B ?\e,2r\e(B ?\e,2s\e(B ?\e,2t\e(B ?\e,1U\e(B ?\e,1V\e(B ?\e,1W\e(B ?\e,1X\e(B ?\e,2y\e(B ?\e,2z\e(B ?\e,1[\e(B ?\e,1\\e(B ?\e,2}\e(B ?\e,1^\e(B ?\e,1_\e(B
  47    ?\e,1`\e(B ?\e,1a\e(B ?\e,1b\e(B ?\e,1c\e(B ?\e,1d\e(B ?\e,1e\e(B ?\e,1f\e(B ?\e,1g\e(B ?\e,1h\e(B ?\e,1i\e(B ?\e,1j\e(B ?\e,1k\e(B ?\e,1l\e(B ?\e,1m\e(B ?\e,1n\e(B ?\e,1o\e(B
  48    ?\e,1p\e(B ?\e,1q\e(B ?\e,1r\e(B ?\e,1s\e(B ?\e,1t\e(B ?\e,1u\e(B ?\e,1v\e(B ?\e,1w\e(B ?\e,1x\e(B ?\e,1y\e(B ?\e,1z\e(B ?\e,1{\e(B ?\e,1|\e(B ?\e,1}\e(B ?\e,1~\e(B ?\e,2f\e(B ]
  49   "Vietnamese VISCII decoding table.")
  50
  51 (let ((table (make-translation-table-from-vector viet-viscii-decode-table)))
  52   (define-translation-table 'viet-viscii-nonascii-translation-table table)
  53   (define-translation-table 'viet-viscii-encode-table
  54     (char-table-extra-slot table 0)))
  55
  56 (defvar viet-vscii-decode-table
  57   [;; VSCII is a full 8-bit code.
  58    0 ?\e,2z\e(B ?\e,2x\e(B 3 ?\e,2W\e(B ?\e,2X\e(B ?\e,2f\e(B 7 8 9 10 11 12 13 14 15
  59    16 ?\e,2Q\e(B ?\e,2_\e(B ?\e,2O\e(B ?\e,2V\e(B ?\e,2[\e(B ?\e,2}\e(B ?\e,2\\e(B 24 25 26 27 28 29 30 31
  60    32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
  61    48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
  62    64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
  63    80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
  64    96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
  65    112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
  66    ?\e,2`\e(B ?\e,2d\e(B ?\e,2c\e(B ?\e,2a\e(B ?\e,2U\e(B ?\e,2#\e(B ?\e,2'\e(B ?\e,2h\e(B ?\e,2k\e(B ?\e,2(\e(B ?\e,2i\e(B ?\e,2)\e(B ?\e,2.\e(B ?\e,2l\e(B ?\e,2o\e(B ?\e,2n\e(B
  67    ?\e,2m\e(B ?\e,28\e(B ?\e,2r\e(B ?\e,2v\e(B ?\e,2u\e(B ?\e,2s\e(B ?\e,2w\e(B ?\e,25\e(B ?\e,26\e(B ?\e,27\e(B ?\e,2^\e(B ?\e,2>\e(B ?\e,2~\e(B ?\e,2y\e(B ?\e,2|\e(B ?\e,2{\e(B
  68    160 ?\e,2e\e(B ?\e,2b\e(B ?\e,2j\e(B ?\e,2t\e(B ?\e,2=\e(B ?\e,2_\e(B ?\e,2p\e(B ?\e,1e\e(B ?\e,1b\e(B ?\e,1j\e(B ?\e,1t\e(B ?\e,1=\e(B ?\e,1y\e(B ?\e,1p\e(B ?\e,2"\e(B
  69    192 193 194 195 196 ?\e,1`\e(B ?\e,1d\e(B ?\e,1c\e(B ?\e,1a\e(B ?\e,1U\e(B ?\e,2F\e(B ?\e,1"\e(B ?\e,1F\e(B ?\e,1G\e(B ?\e,1!\e(B ?\e,2G\e(B
  70    ?\e,2!\e(B ?\e,2%\e(B ?\e,2&\e(B ?\e,2g\e(B ?\e,2%\e(B ?\e,2+\e(B ?\e,1#\e(B ?\e,1%\e(B ?\e,1&\e(B ?\e,1g\e(B ?\e,1$\e(B ?\e,1'\e(B ?\e,1h\e(B ?\e,2,\e(B ?\e,1k\e(B ?\e,1(\e(B
  71    ?\e,1i\e(B ?\e,1)\e(B ?\e,1+\e(B ?\e,1,\e(B ?\e,1-\e(B ?\e,1*\e(B ?\e,1.\e(B ?\e,1l\e(B ?\e,1o\e(B ?\e,2-\e(B ?\e,2*\e(B ?\e,20\e(B ?\e,1n\e(B ?\e,1m\e(B ?\e,18\e(B ?\e,1r\e(B
  72    ?\e,21\e(B ?\e,1v\e(B ?\e,1u\e(B ?\e,1s\e(B ?\e,1w\e(B ?\e,10\e(B ?\e,11\e(B ?\e,12\e(B ?\e,1/\e(B ?\e,15\e(B ?\e,16\e(B ?\e,17\e(B ?\e,1^\e(B ?\e,1>\e(B ?\e,1~\e(B ?\e,1y\e(B
  73    ?\e,22\e(B ?\e,1|\e(B ?\e,1{\e(B ?\e,1z\e(B ?\e,1x\e(B ?\e,1W\e(B ?\e,1X\e(B ?\e,1f\e(B ?\e,1Q\e(B ?\e,1q\e(B ?\e,1O\e(B ?\e,1V\e(B ?\e,1[\e(B ?\e,1}\e(B ?\e,1\\e(B ?\e,2/\e(B]
  74   "Vietnamese VSCII decoding table.")
  75
  76 (let ((table (make-translation-table-from-vector viet-vscii-decode-table)))
  77   (define-translation-table 'viet-vscii-nonascii-translation-table table)
  78   (define-translation-table 'viet-vscii-encode-table
  79     (char-table-extra-slot table 0)))
  80
  81 (define-ccl-program ccl-decode-viscii
  82   `(3
  83     ((loop
  84       (r0 = 0)
  85       (read r1)
  86       (translate-character viet-viscii-nonascii-translation-table r0 r1)
  87       (write-multibyte-character r0 r1)
  88       (repeat))))
  89   "CCL program to decode VISCII 1.1")
  90
  91 (define-ccl-program ccl-encode-viscii
  92   `(1
  93     ((loop
  94       (read-multibyte-character r0 r1)
  95       (translate-character viet-viscii-encode-table r0 r1)
  96       (write-repeat r1))))
  97   "CCL program to encode VISCII 1.1")
  98
  99 (define-ccl-program ccl-encode-viscii-font
 100   `(0
 101     ;; In:  R0:vietnamese-viscii-lower/vietnamese-viscii-upper
 102     ;;      R1:position code
 103     ;; Out: R1:font code point
 104     (translate-character viet-viscii-encode-table r0 r1))
 105   "CCL program to encode Vietnamese chars to VISCII 1.1 font")
 106
 107 (define-ccl-program ccl-decode-vscii
 108   `(3
 109     ((loop
 110       (r0 = 0)
 111       (read r1)
 112       (translate-character viet-vscii-nonascii-translation-table r0 r1)
 113       (write-multibyte-character r0 r1)
 114       (repeat))))
 115   "CCL program to decode VSCII-1.")
 116
 117 (define-ccl-program ccl-encode-vscii
 118   `(1
 119     ((loop
 120       (read-multibyte-character r0 r1)
 121       (translate-character viet-vscii-encode-table r0 r1)
 122       (write-repeat r1))))
 123   "CCL program to encode VSCII-1.")
 124
 125 (define-ccl-program ccl-encode-vscii-font
 126   `(0
 127     ;; In:  R0:vietnamese-viscii-lower/vietnamese-viscii-upper
 128     ;;      R1:position code
 129     ;; Out: R1:font code point
 130     (translate-character viet-vscii-encode-table r0 r1))
 131   "CCL program to encode Vietnamese chars to VSCII-1 font.")
 132
 133
 134 (make-coding-system
 135  'vietnamese-viscii 4 ?V
 136  "8-bit encoding for Vietnamese VISCII 1.1 (MIME:VISCII)."
 137  '(ccl-decode-viscii . ccl-encode-viscii)
 138  '((safe-charsets ascii vietnamese-viscii-lower vietnamese-viscii-upper)
 139    (mime-charset . viscii)
 140    (valid-codes (0 . 255))))
 141
 142 (define-coding-system-alias 'viscii 'vietnamese-viscii)
 143
 144 (make-coding-system
 145  'vietnamese-vscii 4 ?v
 146  "8-bit encoding for Vietnamese VSCII-1."
 147  '(ccl-decode-vscii . ccl-encode-vscii)
 148  '((safe-charsets ascii vietnamese-viscii-lower vietnamese-viscii-upper)
 149    (valid-codes (0 . 255))))
 150
 151 (define-coding-system-alias 'vscii 'vietnamese-vscii)
 152
 153 (make-coding-system
 154  'vietnamese-viqr 0 ?q
 155  "Encoding for Vietnamese latin transcription (VIQR)."
 156  nil
 157  '((safe-charsets ascii vietnamese-viscii-lower vietnamese-viscii-upper)
 158    (post-read-conversion . viqr-post-read-conversion)
 159    (pre-write-conversion . viqr-pre-write-conversion)
 160    (charset-origin-alist
 161     (vietnamese-viscii-lower "VISCII" viet-encode-viscii-char)
 162     (vietnamese-viscii-upper "VISCII" viet-encode-viscii-char))))
 163
 164
 165 (define-coding-system-alias 'viqr 'vietnamese-viqr)
 166
 167 (setq font-ccl-encoder-alist
 168       (cons '("viscii" . ccl-encode-viscii-font) font-ccl-encoder-alist))
 169
 170 (setq font-ccl-encoder-alist
 171       (cons '("vscii" . ccl-encode-vscii-font) font-ccl-encoder-alist))
 172
 173 (set-language-info-alist
 174  "Vietnamese" `((charset vietnamese-viscii-lower vietnamese-viscii-upper)
 175                 (nonascii-translation
 176                  . ,(get 'viet-viscii-nonascii-translation-table
 177                          'translation-table))
 178                 (coding-system vietnamese-viscii vietnamese-vscii
 179                                vietnamese-viqr)
 180                 (coding-priority vietnamese-viscii)
 181                 (input-method . "vietnamese-viqr")
 182                 (unibyte-display . vietnamese-viscii)
 183                 (features viet-util)
 184                 (sample-text . "Vietnamese (Ti\e,1*\e(Bng Vi\e,1.\e(Bt)     Ch\e,1`\e(Bo b\e,1U\e(Bn")
 185                 (documentation . "\
 186 For Vietnamese, Emacs uses special character sets internally.
 187 They can be decoded from and encoded to VISCII, VSCII, and VIQR.
 188 Current setting put higher priority to the coding system VISCII than VSCII.
 189 If you prefer VSCII, please do: (prefer-coding-system 'vietnamese-vscii)")
 190                 ))
 191
 192 (provide 'vietnamese)
 193
 194 ;;; vietnamese.el ends here