From: tomo <tomo>
Date: Mon, 5 Apr 1999 10:06:49 +0000 (+0000)
Subject: Add ethiopic, thai-xtis and vietnamese.
X-Git-Tag: r21-2-12~10
X-Git-Url: http://git.chise.org/gitweb/?a=commitdiff_plain;h=a40e00d5d94c78637e137ff7dda568b47e93a944;p=chise%2Fxemacs-chise.git.1

Add ethiopic, thai-xtis and vietnamese.
---

a40e00d5d94c78637e137ff7dda568b47e93a944
diff --git a/lisp/mule/ethiopic.el b/lisp/mule/ethiopic.el
new file mode 100644
index 0000000..e69de29
diff --git a/lisp/mule/thai-xtis.el b/lisp/mule/thai-xtis.el
new file mode 100644
index 0000000..ba4da1d
--- /dev/null
+++ b/lisp/mule/thai-xtis.el
@@ -0,0 +1,300 @@
+;;; thai-xtis.el --- Thai support for pre-composed font (for XTIS).
+
+;; Copyright (C) 1999 Electrotechnical Laboratory, JAPAN.
+;; Licensed to the Free Software Foundation.
+
+;; Author: TAKAHASHI Naoto <ntakahas@etl.go.jp>
+;;         MORIOKA Tomohiko <tomo@etl.go.jp>
+;; Created: 1998-03-27 for Emacs-20.3 by TAKAHASHI Naoto
+;;	    1999-03-29 imported and modified for XEmacs	by MORIOKA Tomohiko
+
+;; Keywords: mule, multilingual, Thai, XTIS
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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 2, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Commentary:
+
+;; For Thai, the pre-composed character set proposed by
+;; Virach Sornlertlamvanich <virach@links.nectec.or.th> is supported.
+
+;;; Code:
+
+(when (featurep 'xemacs)
+  (make-charset 'thai-xtis "Precomposed Thai (XTIS by Virach)."
+		'(registry "Thai94x94-0$"
+			   dimension 2
+			   chars 94
+			   final ??
+			   graphic 0))
+
+  (modify-syntax-entry 'thai-xtis "w")
+
+  (define-category ?T "Precomposed Thai character.")
+  (modify-category-entry 'thai-xtis ?T)
+  )
+
+
+(defvar leading-code-private-21 #x9F)
+
+(defconst thai-xtis-leading-code
+  (concat (char-to-string leading-code-private-21)
+	  (char-to-string (charset-id 'thai-xtis))))
+
+(define-ccl-program ccl-thai-xtis-consonant
+  `(0
+    (if (r1 == 0)
+	((write ,thai-xtis-leading-code)
+	 (write r0)
+	 (r1 = r2))
+      (if (r1 == r2)
+	  ((write r1)
+	   (write ,thai-xtis-leading-code)
+	   (write r0))
+	((write r1)
+	 (write ,thai-xtis-leading-code)
+	 (write r0)
+	 (r1 = r2))))))
+
+(define-ccl-program ccl-thai-xtis-vowel-d1
+  `(0
+    (if (r1 == 0)
+	((write ,thai-xtis-leading-code)
+	 (write r0 r2))
+      (if (r1 == r2)
+	  (r1 = ?\xb8)
+	((write r1)
+	 (write ,thai-xtis-leading-code)
+	 (write r0 r2)
+	 (r1 = 0))))))
+
+(define-ccl-program ccl-thai-xtis-vowel
+  `(0
+    (if (r1 == 0)
+	((write ,thai-xtis-leading-code)
+	 (write r0 r2))
+      (if (r1 == r2)
+	  (r1 = ((r0 - 188) << 3))
+	((write r1)
+	 (write ,thai-xtis-leading-code)
+	 (write r0 r2)
+	 (r1 = 0))))))
+
+(define-ccl-program ccl-thai-xtis-vowel-ee
+  `(0
+    (if (r1 == 0)
+	((write ,thai-xtis-leading-code)
+	 (write r0 r2))
+      (if (r1 == r2)
+	  (r1 = ?\xf8)
+	((write r1)
+	 (write ,thai-xtis-leading-code)
+	 (write r0 r2)
+	 (r1 = 0))))))
+
+(define-ccl-program ccl-thai-xtis-tone
+  `(0
+    (if (r1 == 0)
+	((write ,thai-xtis-leading-code)
+	 (write r0 r2))
+      (if (r1 == r2)
+	  ((r0 -= 54)
+	   (write r0)
+	   (r1 = 0))
+	((r1 += (r0 - ?\xe6))
+	 (write r1)
+	 (r1 = 0))))))
+
+(define-ccl-program ccl-thai-xtis-symbol
+  `(0
+    (if (r1 == 0)
+	((write ,thai-xtis-leading-code)
+	 (write r0 r2))
+      (if (r1 == r2)
+	  ((write r2)
+	   (write ,thai-xtis-leading-code)
+	   (write r0 r2)
+	   (r1 = 0))
+	((write r1)
+	 (write ,thai-xtis-leading-code)
+	 (write r0 r2)
+	 (r1 = 0))))))
+
+(define-ccl-program ccl-decode-thai-xtis
+  `(4
+    ((read r0)
+     (r1 = 0)
+     (r2 = ?\xb0)
+     (loop
+      (if (r0 < 161)
+	  (if (r1 == 0)
+	      (write r0)
+	    (if (r1 == r2)
+		((write r2 r0)
+		 (r1 = 0))
+	      ((write r1 r0)
+	       (r1 = 0))))
+	(branch (r0 - 161)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-consonant)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-vowel-d1)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-vowel)
+		(call ccl-thai-xtis-vowel)
+		(call ccl-thai-xtis-vowel)
+		(call ccl-thai-xtis-vowel)
+		(call ccl-thai-xtis-vowel)
+		(call ccl-thai-xtis-vowel)
+		(call ccl-thai-xtis-vowel)
+		nil
+		nil
+		nil
+		nil
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-tone)
+		(call ccl-thai-xtis-vowel-ee)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		(call ccl-thai-xtis-symbol)
+		nil
+		nil
+		nil))
+      (read r0)
+      (repeat)))
+
+    (if (r1 != 0)
+	(write r1)
+      nil)))
+
+(define-ccl-program ccl-encode-thai-xtis
+  `(1
+    ((read r0)
+     (loop
+      (if (r0 == ,leading-code-private-21)
+	  ((read r1)
+	   (if (r1 == ,(charset-id 'thai-xtis))
+	       ((read r0)
+		(write r0)
+		(read r0)
+		(r1 = (r0 & 7))
+		(r0 = ((r0 - ?\xb0) >> 3))
+		(if (r0 != 0)
+		    (write r0 [0 209 212 213 214 215 216 217 218 238]))
+		(if (r1 != 0)
+		    (write r1 [0 231 232 233 234 235 236 237]))
+		(read r0)
+		(repeat))
+	     ((write r0 r1)
+	      (read r0)
+	      (repeat))))
+	(write-read-repeat r0))))))
+
+(if (featurep 'xemacs)
+    (make-coding-system
+     'tis-620 'ccl
+     "external=tis620, internal=thai-xtis"
+     `(mnemonic "Thai-XTIS"
+       decode ,ccl-decode-thai-xtis
+       encode ,ccl-encode-thai-xtis))
+  (make-coding-system
+   'tis-620 4 ?T "external=tis620, internal=thai-xtis"
+   '(ccl-decode-thai-xtis . ccl-encode-thai-xtis)
+   '((safe-charsets . t)))
+  )
+
+
+(set-language-info-alist
+ "Thai-XTIS"
+ '((setup-function . setup-thai-xtis-environment)
+   (exit-function . exit-thai-xtis-environment)
+   (charset thai-xtis)
+   (coding-system tis-620 iso-2022-7bit)
+   (coding-priority tis-620 iso-2022-7bit)
+   (sample-text . "$(?!:(B")
+   (documentation . t)))
+
+;; thai-xtis.el ends here.
diff --git a/lisp/mule/vietnamese.el b/lisp/mule/vietnamese.el
new file mode 100644
index 0000000..241d6c6
--- /dev/null
+++ b/lisp/mule/vietnamese.el
@@ -0,0 +1,290 @@
+;;; vietnamese.el --- Support for Vietnamese
+
+;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
+;; Licensed to the Free Software Foundation.
+;; Copyright (C) 1997 MORIOKA Tomohiko
+
+;; Keywords: multilingual, Vietnamese
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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 2, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Commentary:
+
+;; For Vietnames, the character sets VISCII and VSCII are supported.
+
+;;; Code:
+
+(eval-and-compile
+
+(defvar viet-viscii-decode-table
+  [;; VISCII is a full 8-bit code.
+   0 1 ?.2NF 3 4 ?NG ?Ng 7 8 9 10 11 12 13 14 15
+   16 17 18 19 ?.2NV 21 22 23 24 ?N[ 26 27 28 29 ?N\ 31
+   32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
+   48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
+   64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
+   80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
+   96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
+   112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 
+   ?.2NU ?N! ?N" ?N# ?N$ ?N% ?N& ?N' ?N( ?N) ?N* ?N+ ?N, ?N- ?N. ?N/
+   ?.2N0 ?N1 ?N2 ?N5 ?N~ ?N> ?N6 ?N7 ?N8 ?Nv ?Nw ?No ?N| ?N{ ?Nx ?NO
+   ?.2Nu ?.1N! ?N" ?N# ?N$ ?N% ?N& ?N' ?N( ?N) ?N* ?N+ ?N, ?N- ?N. ?N/
+   ?.1N0 ?N1 ?N2 ?.2N^ ?N= ?.1N5 ?N6 ?N7 ?N8 ?.2Nq ?NQ ?NW ?NX ?.1N= ?N> ?.2N_
+   ?.2N` ?Na ?Nb ?Nc ?Nd ?Ne ?.1NF ?NG ?.2Nh ?Ni ?Nj ?Nk ?Nl ?Nm ?Nn ?.1NO
+   ?.2Np ?.1NQ ?.2Nr ?Ns ?Nt ?.1NU ?NV ?NW ?NX ?.2Ny ?Nz ?.1N[ ?N\ ?.2N} ?.1N^ ?N_
+   ?.1N` ?Na ?Nb ?Nc ?Nd ?Ne ?Nf ?Ng ?Nh ?Ni ?Nj ?Nk ?Nl ?Nm ?Nn ?No
+   ?.1Np ?Nq ?Nr ?Ns ?Nt ?Nu ?Nv ?Nw ?Nx ?Ny ?Nz ?N{ ?N| ?N} ?N~ ?.2Nf ]
+  "Vietnamese VISCII decoding table.")
+
+(defun split-char-or-char-int (char)
+  "Return list of charset and one or two position-codes of CHAR.
+CHAR must be character or integer."
+  (if (characterp char)
+      (split-char char)
+    (let ((c (int-char char)))
+      (if c
+	  (split-char c)
+	(list 'ascii c)
+	))))
+
+(defvar viet-viscii-encode-table
+  (let ((table-lower (make-vector 128 0))
+	(table-upper (make-vector 128 0))
+	(i 0)
+	char-component)
+    (while (< i 256)
+      (setq char-component
+	    (split-char-or-char-int (aref viet-viscii-decode-table i)))
+      (cond ((eq (car char-component) 'vietnamese-viscii-lower)
+	     (aset table-lower (nth 1 char-component) i))
+	    ((eq (car char-component) 'vietnamese-viscii-upper)
+	     (aset table-upper (nth 1 char-component) i)))
+      (setq i (1+ i)))
+    (cons table-lower table-upper))
+  "Vietnamese VISCII encoding table.
+Cons of tables for encoding lower-case chars and upper-case characters.
+Both tables are indexed by the position code of Vietnamese characters.")
+
+(defvar viet-vscii-decode-table
+  [;; VSCII is a full 8-bit code.
+   0 ?.2Nz ?Nx 3 ?NW ?NX ?Nf 7 8 9 10 11 12 13 14 15
+   16 ?.2NQ ?N_ ?NO ?NV ?N[ ?N} ?N\ 24 25 26 27 28 29 30 31
+   32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
+   48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
+   64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
+   80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
+   96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
+   112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 
+   ?.2N` ?Nd ?Nc ?Na ?NU ?N# ?N' ?Nh ?Nk ?N( ?Ni ?N) ?N. ?Nl ?No ?Nn
+   ?.2Nm ?N8 ?Nr ?Nv ?Nu ?Ns ?Nw ?N5 ?N6 ?N7 ?N^ ?N> ?N~ ?Ny ?N| ?N{
+   160 ?.2Ne ?Nb ?Nj ?Nt ?N= ?N_ ?Np ?.1Ne ?Nb ?Nj ?Nt ?N> ?Ny ?Np ?.2N"
+   192 193 194 195 196 ?.1N` ?Nd ?Nc ?Na ?NU ?.2NF ?.1N" ?NF ?NG ?N! ?.2NG
+   ?.2N! ?N% ?N& ?Ng ?N% ?N+ ?.1N# ?N% ?N& ?Ng ?N$ ?N' ?Nh ?.2N, ?.1Nk ?N(
+   ?.1Ni ?N) ?N+ ?N, ?N- ?N* ?N. ?Nl ?No ?.2N- ?N* ?N0 ?.1Nn ?Nm ?N8 ?Nr
+   ?.2N1 ?.1Nv ?Nu ?Ns ?Nw ?N0 ?N1 ?N2 ?N/ ?N5 ?N6 ?N7 ?N^ ?N> ?N~ ?Ny
+   ?.2N2 ?.1N| ?N{ ?Nz ?Nx ?NW ?NX ?Nf ?NQ ?Nq ?NO ?NV ?N[ ?N} ?N\ ?.2N/]
+  "Vietnamese VSCII decoding table.")
+
+(defvar viet-vscii-encode-table
+  (let ((table-lower (make-vector 128 0))
+	(table-upper (make-vector 128 0))
+	(i 0)
+	char-component)
+    (while (< i 256)
+      (setq char-component
+	    (split-char-or-char-int (aref viet-vscii-decode-table i)))
+      (cond ((eq (car char-component) 'vietnamese-viscii-lower)
+	     (aset table-lower (nth 1 char-component) i))
+	    ((eq (car char-component) 'vietnamese-viscii-upper)
+	     (aset table-upper (nth 1 char-component) i)))
+      (setq i (1+ i)))
+    (cons table-lower table-upper))
+  "Vietnamese VSCII encoding table.
+Cons of tables for encoding lower-case chars and upper-case characters.
+Both tables are indexed by the position code of Vietnamese characters.")
+
+)
+
+(define-ccl-program ccl-decode-viscii
+  `(3
+    ((read r0)
+     (loop
+      (write-read-repeat r0 ,viet-viscii-decode-table))
+     ))
+  "CCL program to decode VISCII 1.1")
+
+;; Multibyte form of a Vietnamese character is as follows (3-byte):
+;;   LEADING-CODE-PRIVATE-11 LEADING-CODE-EXTENDED-11 POSITION-CODE
+;; where LEADING-CODE-EXTENDED-11 for Vietnamese is
+;; `vietnamese-viscii-lower' or `vietnamese-viscii-upper'.
+
+(defvar leading-code-private-11 #x9E)
+
+(define-ccl-program ccl-encode-viscii
+  `(1
+     ((read r0)
+      (loop
+       (if (r0 < 128)
+	   ;; ASCII
+	   (write-read-repeat r0)
+	 ;; not ASCII
+	 (if (r0 != ,leading-code-private-11)
+	     ;; not Vietnamese
+	     (write-read-repeat r0)
+	   ((read-if (r0 == ,(charset-id 'vietnamese-viscii-lower))
+	     (;; Vietnamese lower
+	      (read r0)
+	      (r0 -= 128)
+	      (write-read-repeat r0 ,(car viet-viscii-encode-table)))
+	     (if (r0 == ,(charset-id 'vietnamese-viscii-upper))
+		 (;; Vietnamese upper
+		  (read r0)
+		  (r0 -= 128)
+		  (write-read-repeat r0 ,(cdr viet-viscii-encode-table)))
+	       ;; not Vietnamese
+	       (write-read-repeat r0)))))))))
+  "CCL program to encode VISCII 1.1")
+
+(define-ccl-program ccl-encode-viscii-font
+  `(0
+    ;; In:  R0:vietnamese-viscii-lower/vietnamese-viscii-upper
+    ;;      R1:position code
+    ;; Out: R1:font code point
+    (if (r0 == ,(charset-id 'vietnamese-viscii-lower))
+	(r1 = r1 ,(car viet-viscii-encode-table))
+      (r1 = r1 ,(cdr viet-viscii-encode-table)))
+    )
+  "CCL program to encode Vietnamese chars to VISCII 1.1 font")
+
+(define-ccl-program ccl-decode-vscii
+  `(3
+    ((read r0)
+     (loop
+      (write-read-repeat r0 ,viet-vscii-decode-table))
+     ))
+  "CCL program to decode VSCII-1.")
+
+(define-ccl-program ccl-encode-vscii
+  `(1
+    ((read r0)
+     (loop
+      (if (r0 < 128)
+	  ;; ASCII
+	  (write-read-repeat r0)
+	;; not ASCII 
+	(if (r0 != ,leading-code-private-11)
+	    ;; not Vietnamese
+	    (write-read-repeat r0)
+	  (read-if (r0 == ,(charset-id 'vietnamese-viscii-lower))
+		   (;; Vietnamese lower
+		    (read r0)
+		    (r0 -= 128)
+		    (write-read-repeat r0 ,(car viet-vscii-encode-table)))
+		   (if (r0 == ,(charset-id 'vietnamese-viscii-upper))
+		       (;; Vietnamese upper
+			(read r0)
+			(r0 -= 128)
+			(write-read-repeat r0 ,(cdr viet-viscii-encode-table)))
+		     ;; not Vietnamese
+		     (write-read-repeat r0))))))))
+  "CCL program to encode VSCII-1.")
+
+(define-ccl-program ccl-encode-vscii-font
+  `(0
+    ;; In:  R0:vietnamese-viscii-lower/vietnamese-viscii-upper
+    ;;      R1:position code
+    ;; Out: R1:font code point
+    (if (r0 == ,(charset-id 'vietnamese-viscii-lower))
+	(r1 = r1 ,(car viet-vscii-encode-table))
+      (r1 = r1 ,(cdr viet-vscii-encode-table)))
+    )
+  "CCL program to encode Vietnamese chars to VSCII-1 font.")
+
+
+(make-coding-system
+ 'viscii 'ccl
+ "Coding-system used for VISCII 1.1."
+ `(mnemonic "VISCII"
+   decode ,ccl-decode-viscii
+   encode ,ccl-encode-viscii))
+
+;; (make-coding-system
+;;  'vietnamese-viscii 4 ?V
+;;  "8-bit encoding for Vietnamese VISCII 1.1 (MIME:VISCII)"
+;;  (cons ccl-decode-viscii ccl-encode-viscii))
+
+;; (define-coding-system-alias 'viscii 'vietnamese-viscii)
+
+(make-coding-system
+ 'vscii 'ccl
+ "Coding-system used for VSCII 1.1."
+ `(mnemonic "VSCII"
+   decode ,ccl-decode-vscii
+   encode ,ccl-encode-vscii))
+
+;; (make-coding-system
+;;  'vietnamese-vscii 4 ?v
+;;  "8-bit encoding for Vietnamese VSCII-1"
+;;  (cons ccl-decode-vscii ccl-encode-vscii))
+
+;; (define-coding-system-alias 'vscii 'vietnamese-vscii)
+
+(make-coding-system
+ 'viqr 'no-conversion
+ "Coding-system used for VIQR."
+ '(mnemonic "VIQR"
+   eol-type lf
+   post-read-conversion viqr-post-read-conversion
+   pre-write-conversion viqr-pre-write-conversion))
+
+;; (make-coding-system
+;;  'vietnamese-viqr 0 ?q
+;;  "Vietnamese latin transcription (VIQR)"
+;;  nil)
+;; (put 'vietnamese-viqr 'post-read-conversion 'viqr-post-read-conversion)
+;; (put 'vietnamese-viqr 'pre-write-conversion 'viqr-pre-write-conversion)
+
+;; (define-coding-system-alias 'viqr 'vietnamese-viqr)
+
+;; For VISCII users
+(set-charset-ccl-program 'vietnamese-viscii-lower
+			 ccl-encode-viscii-font)
+(set-charset-ccl-program 'vietnamese-viscii-upper
+			 ccl-encode-viscii-font)
+;; For VSCII users
+(set-charset-ccl-program 'vietnamese-viscii-lower ccl-encode-vscii-font)
+(set-charset-ccl-program 'vietnamese-viscii-upper ccl-encode-vscii-font)
+
+;; (setq font-ccl-encoder-alist
+;;       (cons (cons "viscii" ccl-encode-viscii-font) font-ccl-encoder-alist))
+
+;; (setq font-ccl-encoder-alist
+;;       (cons (cons "vscii" ccl-encode-vscii-font) font-ccl-encoder-alist))
+
+(set-language-info-alist
+ "Vietnamese" '((setup-function . setup-vietnamese-environment)
+		(charset . (vietnamese-viscii-lower
+			    vietnamese-viscii-upper))
+		(coding-system . (viscii vscii viqr))
+		(sample-text . "Vietnamese (Ti.1N*ng ViN.t)	ChN`o bNUn")
+		(documentation . "\
+For Vietnamese, Emacs uses special charasets internally.
+They can be decoded from and encoded to VISCC, VSCII, and VIQR.")
+		))
+
+;;; vietnamese.el ends here