RE: shift_jis / windows-31J

[Shawn Steele <Shawn.Steele@microsoft.com>]

There were some comments, but they didn't seem to impact the idea here very much.

I've updated the Windows-31J with a note about the 0x5c behavior.

I also added MacJapanese and Java SJIS to the variations comment for shift_jis, but they aren't registered.

Any further comments?  I'd like to submit this for the 2 week review and then submit them.  I am not ignoring Anne's request to "solve the problem here", but I think that's a more complex issue, and that these changes proposed below would more easily address some of the common confusion in this area.  I'm not opposed to someone following up on a better/more complete fix, but I think it'll be hard to get consensus. 

-Shawn

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Charset name: Windows-31J
Charset aliases: csWindows31J
MIBenum: 2024

Suitability for use in MIME text:

Yes, Windows-31J is suitable for use with subtypes of the "text" Content-Type. Note that Windows-31J is an 8-bit charset. Care should be taken to choose an appropriate Content-Transfer-Encoding.

Published specification(s):

http://msdn.microsoft.com/en-us/goglobal/cc305152.aspx

ISO 10646 equivalency table:

http://unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP932.TXT

Additional information:

Windows Japanese.  A variant of Shift_JIS to include NEC special characters (Row 13), NEC selection of IBM extensions (Rows 89 to 92), and IBM extensions (Rows 115 to 119).  The CCS's are JIS X0201:1997, JIS X0208:1997, and these extensions.  Windows-31J text is commonly declared with the shift_jis name of the parent charset, and the Windows-31J name may not be recognized.

In practice 0x5C in Windows-31J is mapped to U+005C in Unicode, but usually displayed as a yen sign glyph.

Person & email address to contact for further information:

 Shawn Steele
 Email: Shawn.Steele@microsoft.com

 Microsoft Corporation
 One Microsoft Way,
 Redmond, WA 98052
 U.S.A.

Intended usage: LIMITED USE

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Charset name: Shift_JIS

MIBenum: 17

Charset aliases: MS_Kanji and csShiftJIS

Suitability for use in MIME text:
This charset can be used for the top-level media type "text".

Published specification(s): Appendix 1 of JIS X0208:1997.

ISO 10646 equivalency table:

The correspondence is defined in JIS X0208:1997, the Kanji mapping is described in Appendix 6.  Column 1 of Table 2 of Appendix 5 lists some variation of punctuation, and the names given in Appendix 5 are preferred to those in Appendix 4, when available.

In computer readable formats several variations exist.  An obsolete variation is available at:

http://unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/JIS/SHIFTJIS.TXT

Additional information:

This charset is an extension of csHalfWidthKatakana by adding graphic characters in JIS X 0208.  The CCS's are JIS X0201:1997 and JIS X0208:1997.

Several vendor specific charsets that derive from shift_jis often use the shift_jis name instead of a more specific vendor charset name.  Windows-31J is one example, MacJapanese and Java SJIS are others.  A common variation is to convert shift_jis 0x5c to U+005c Unicode, but display it as the Yen sign.  Windows-31J examples.

Person & email address to contact for further information:
Japanese Industrial Standards Committee
http://www.jisc.go.jp/eng/index.html

Intended usage: LIMITED USE