Re: Shift-JIS/Unicode mapping in JAVA

From: "Kazuhiro Kazama" <kazama@xxxxxxxxxx>
> From: Jane Liu <xjliu_ca@xxxxxxxxx>
> Subject: Shift-JIS/Unicode mapping in JAVA
> Date: Wed, 28 May 2003 12:36:39 -0700 (PDT)
> Message-ID: <20030528193639.92471.qmail@xxxxxxxxxxxxxxxxxxxxxxx>
> > I am running a JAVA program on Japanese Windows 2000 system, looking
> > at the Unicode conversion of the following four characters from
> > Shift-JIS encoding (MS-CP932) in both JRE 1.3.1 and JRE 1.4.1, and
> > noticed some interesting changes:
> 
> I guess that you used the charset name "Shift_JIS". Would you try to
> use "Windows-31J"?

I think that the canonical name of this encoding should be used, as 
"Windows-31J" is very uncommon.
So it seems better to designate the encoding with "CP932", or "windows-932", 
which Windows and Internet Explorer also prefers (and probably many other 
browsers).

It is true that MS-CP932 is NOT Shift-JIS, even if it's mostly compatible with 
it. It was created a long time ago as an extension of an *old* version of the 
JIS standard, and includes characters that have been later integrated in 
Shift_JIS. The current version of Shift_JIS has now more characters than the 
Microsoft codepage 932, but MS-CP932 also includes some characters defined in 
all Microsoft codepages and that are still missing from Shift_JIS and won't be 
added now that Shift_JIS has been deprecated by a newer version that includes 
support for all UniHan and Unicode/ISO10646 characters.



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