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;;; vietnamese.el --- support for Vietnamese -*- coding: utf-8; lexical-binding: t -*-
;; Copyright (C) 1998, 2001-2021 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: multilingual, Vietnamese, i18n
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; For Vietnamese, the character sets VISCII, VSCII and TCVN-5712 are
;; supported.
;;; Code:
(define-coding-system 'vietnamese-viscii
"8-bit encoding for Vietnamese VISCII 1.1 (MIME:VISCII)."
:coding-type 'charset
:mnemonic ?V
:charset-list '(viscii)
:mime-charset 'viscii
:suitable-for-file-name t)
(define-coding-system-alias 'viscii 'vietnamese-viscii)
(define-coding-system 'vietnamese-vscii
"8-bit encoding for Vietnamese VSCII-1."
:coding-type 'charset
:mnemonic ?v
:charset-list '(vscii)
:suitable-for-file-name t)
(define-coding-system-alias 'vscii 'vietnamese-vscii)
;; (make-coding-system
;; 'vietnamese-vps 4 ?p
;; "8-bit encoding for Vietnamese VPS"
;; '(ccl-decode-vps . ccl-encode-vps)
;; '((safe-charsets ascii vietnamese-viscii-lower vietnamese-viscii-upper)
;; (valid-codes (0 . 255))))
;;
;; (define-coding-system-alias 'vps 'vietnamese-vps)
(define-coding-system 'vietnamese-viqr
"Vietnamese latin transcription (VIQR)."
:coding-type 'utf-8
:mnemonic ?q
:charset-list '(ascii viscii)
:post-read-conversion 'viqr-post-read-conversion
:pre-write-conversion 'viqr-pre-write-conversion)
(define-coding-system-alias 'viqr 'vietnamese-viqr)
(set-language-info-alist
"Vietnamese" '((charset viscii)
(coding-system vietnamese-viscii vietnamese-vscii
vietnamese-tcvn vietnamese-viqr windows-1258)
(nonascii-translation . viscii)
(coding-priority vietnamese-viscii)
(input-method . "vietnamese-viqr")
(unibyte-display . vietnamese-viscii)
(features viet-util)
(sample-text . "Vietnamese (Tiếng Việt) Chào bạn")
(documentation . "\
For Vietnamese, Emacs uses special charsets internally.
They can be decoded from and encoded to VISCII, VSCII, TCVN-5712, VIQR
and windows-1258. VSCII is deprecated in favor of TCVN-5712. The
Current setting gives higher priority to the coding system VISCII than
TCVN-5712. If you prefer TCVN-5712, please do: (prefer-coding-system
'vietnamese-tcvn). There are two Vietnamese input methods: VIQR and
Telex, VIQR is the default setting.")))
(define-coding-system 'windows-1258
"windows-1258 encoding for Vietnamese (MIME: WINDOWS-1258)"
:coding-type 'charset
:mnemonic ?*
:charset-list '(windows-1258)
:mime-charset 'windows-1258)
(define-coding-system-alias 'cp1258 'windows-1258)
(define-coding-system 'vietnamese-tcvn
"8-bit encoding for Vietnamese TCVN-5712"
:coding-type 'charset
:mnemonic ?t
:charset-list '(tcvn-5712)
:suitable-for-file-name t)
(define-coding-system-alias 'tcvn 'vietnamese-tcvn)
(define-coding-system-alias 'tcvn-5712 'vietnamese-tcvn)
(provide 'vietnamese)
;;; vietnamese.el ends here
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