draft-ohta-jcs-jis-x-0213
INTERNET DRAFT M. Ohta
draft-ohta-jcs-jis-x-0213-00.txt Tokyo Institute of Technology
K. Yasuoka
Kyoto University
K. Shibano
Tokyo University of Foreign Studies
October 1999
Japanese Character Encoding on the Internet with JIS X 0213
Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC2026.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
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The list of current Internet-Drafts can be accessed at
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The list of Internet-Draft Shadow Directories can be accessed at
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This document is a product of JCS (JIS Coded Character Set)
Committee.
Abstract
This memo describes six MIME charsets: ISO-2022-JP-3, ISO-2022-JP-3-
plane1, Shift_JISX0213, Shift_JISX0213-plane1, EUC-JISX0213, EUC-
JISX0213-plane1 for Japanese text encoding on the Internet with
characters of ASCII, JIS X 0201, JIS X 0211, JIS X 0208 and JIS X
0213.
ISO-2022-JP-3 is the encoding for Japanese text and suitable for use
in MIME. ISO-2022-JP-3-plane1 is a subset of ISO-2022-JP-3.
Shift_JISX0213, Shift_JISX0213-plane1, EUC-JISX0213 and EUC-
JISX0213-plane1 are intended to be used internal to hosts or
applications and not suitable for use in MIME.
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1. Introduction
JCS (JIS Coded Character Set) Committee has defined a new CCS (Coded
Character Set), JIS X 0213 [JISX0213], which mostly is an extension
of JIS X 0208 [JISX0208], to encode usual Japanese text.
JIS X 0213 has two planes, plane1 and plane2 and can be subsetted to
use plane1 only.
To use characters of JIS X 0213, JCS committee defines 6 new
charsets: ISO-2022-JP-3, ISO-2022-JP-3-plane1, Shift_JISX0213,
Shift_JISX0213-plane1, EUC-JISX0213 and EUC-JISX0213-plane1 according
to the guidelines of BCP 19, RFC 2278 [BCP19].
2. ISO-2022-JP-3
ISO-2022-JP-3 consists of CCSes of ASCII [ASCII], JIS X 0208
[JISX0208] and JIS X 0213 [JISX0213].
The CES (Character Encoding Scheme) of ISO-2022-JP-3 uses escape
sequences of ISO 2022 [ISO2022] and is like that of ISO-2022-JP
[RFC1463].
The full specification of the CES of ISO-2022-JP-3 is given in Annex
2 of [JISX0213].
ISO-2022-JP-3 is suitable for use in MIME [MIME1].
MIBenum of ISO-2022-JP-3 is <to be assigned by IANA>.
3. ISO-2022-JP-3-plane1
ISO-2022-JP-3-plane1 is identical to ISO-2022-JP-3, except that no
characters of JIS X 0213 plane 2 can be used.
MIBenum of ISO-2022-JP-3-plane1 is <to be assigned by IANA>.
4. Shift_JISX0213
Shift_JISX0213 consists of CCSes of JIS X 0201 [JISX0201], JIS X 0211
[JISX0211] and JIS X 0213.
The CES of Shift_JISX0213 is like that of charset Shift_JIS.
The full specification of the CES of Shift_JISX0213 is given in Annex
1 of [JISX0213].
Shift_JISX0213 is not suitable for use in MIME.
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MIBenum of Shift_JISX0213 is <to be assigned by IANA>.
5. Shift_JISX0213-plane1
Shift_JISX0213-plane1 is identical to Shift_JISX0213, except that no
characters of JIS X 0213 plane 2 can be used.
MIBenum of Shift_JISX0213-plane1 is <to be assigned by IANA>.
6. EUC-JISX0213
EUC-JISX0213 consists of CCSes of ASCII, JIS X 0208, JIS X 0201 Kana
and JIS X 0213.
The CES of EUC-JISX0213 is like that of charset EUC-JP.
The full specification of the CES of EUC-JISX0213 is given in Annex 3
of [JISX0213].
EUC-JISX0213 is not suitable for use in MIME.
MIBenum of EUC-JISX0213 is <to be assigned by IANA>.
7. EUC-JISX0213-plane1
EUC-JISX0213-plane1 is identical to EUC-JISX0213, except that no
characters of JIS X 0213 plane 2 can be used.
MIBenum of EUC-JISX0213-plane1 is <to be assigned by IANA>.
8. References
[ASCII] American National Standards Institute, "Coded character set
-- 7-bit American national standard code for information
interchange", ANSI X3.4-1986.
[BCP19] N. Freed, J. Postel, "IANA Charset Registration Procedure",
RFC2278, January 1998.
[ISO2022] International Organization for Standardization (ISO),
"Information processing -- ISO 7-bit and 8-bit coded character sets
-- Code extension techniques", International Standard, Ref. No. ISO
2022-1986 (E).
[JISX0201] Japanese Industrial Standards Committee, "7-bit and 8-bit
coded character sets for information interchange", JIS X 0201:1997,
Japanese Standards Association, January 1997.
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[JISX0208] Japanese Industrial Standards Committee, "7-bit and 8-bit
double byte coded KANJI sets for information interchange", JIS X
0208:1997, Japanese Standards Association, January 1997.
[JISX0211] Japanese Industrial Standards Committee, "Control
functions for coded character sets", JIS X 0211:1994, Japanese
Standards Association, October 1994.
[JISX0213] Japanese Industrial Standards Committee, "7-bit and 8-bit
double byte coded extended Kanji sets for information interchange",
JIS X 0213:2000, Japanese Standards Association, (To be published in
January 2000, draft accessible through http://jcs.aa.tufs.ac.jp/).
[MIME1] N. Freed, N. Borenstein, "Multipurpose Internet Mail
Extensions (MIME) Part One: Format of Internet Message Bodies", RFC
2045, November 1996.
[RFC1468] J. Murai, M. Crispin, E. van der Poel, "Japanese Character
Encoding for Internet Messages", RFC 1468, June 1993.
9. Security Considerations
This memo defines MIME charsets, interpretation of which should
result in text displayed without any side effects such as device
control, which is believed to be unrelated to security issues.
10. Authors' Addresses
Masataka Ohta
Computer Center, Tokyo Institute of Technology
2-12-1, O-okayama, Meguro-ku, Tokyo 152, JAPAN
Phone: +81-3-5499-7084
Fax: +81-3-3729-1940
EMail: mohta@necom830.hpcl.titech.ac.jp
Kouichi Yasuoka
Data Processing Center, Kyoto University
Kyoto 606-8501, JAPAN
Phone: +81-75-753-7430
Fax: +81-75-753-7450
EMail: yasuoka@kudpc.kyoto-u.ac.jp
Kouji Shibano
Information Resource Center
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Institute for the Study of Languages and Cultures of Asia and Africa
Tokyo University of Foreign Studies
Phone: +81-44-954-7337
Fax: +81-44-954-7337
EMail: shibano@aa.tufs.ac.jp
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11. Full Copyright Statement
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