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- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet- Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. 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. Ohta, Yasuoka & Shibano Expires on April 15, 2000 [Page 1] INTERNET DRAFT Japanese Character Encoding with JIS X 0213 October 1999 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 . 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 . 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. Ohta, Yasuoka & Shibano Expires on April 15, 2000 [Page 2] INTERNET DRAFT Japanese Character Encoding with JIS X 0213 October 1999 MIBenum of Shift_JISX0213 is . 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 . 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 . 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 . 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. Ohta, Yasuoka & Shibano Expires on April 15, 2000 [Page 3] INTERNET DRAFT Japanese Character Encoding with JIS X 0213 October 1999 [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 Ohta, Yasuoka & Shibano Expires on April 15, 2000 [Page 4] INTERNET DRAFT Japanese Character Encoding with JIS X 0213 October 1999 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 Ohta, Yasuoka & Shibano Expires on April 15, 2000 [Page 5] INTERNET DRAFT Japanese Character Encoding with JIS X 0213 October 1999 11. Full Copyright Statement "Copyright (C) The Internet Society (date). All Rights Reserved. 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