Code page 932 (Microsoft Windows): Difference between revisions

Revision as of 21:39, 10 March 2018

Revision as of 23:18, 14 March 2018

Line 25:

IBM's code page 943 (or "IBM-943") includes the same double byte codes as Windows code page 932.<ref name="ibm932v943" /> Microsoft's version corresponds closely to the encoding referred to as '''ibm-943_P15A-2003''' (with aliases including '''CP943C''' and '''Windows-932''')<ref name="icuwindows31j" /> in [[International Components for Unicode]] (ICU). There is also a second ICU encoding named '''ibm-943_P130-1999''',<ref name="icuibm943" /> which uses different single-byte mappings which more closely match IBM's code page definitions. (See [[#Single-byte character differences|§ Single-byte character differences]] below for details.)

Windows code page 932 is registered with the [[Internet Assigned Numbers Authority|IANA]] as '''Windows-31J'''.<ref name="iana31j">{{cite web | url=https://www.iana.org/assignments/character-sets/character-sets.xhtml | publisher=IANA | title=Character Sets}}</ref> The "Windows-31J" label is IANA's and not recognized by Microsoft, which has historically used "shift_jis" instead.<ref name="msdnlabels">{{cite web|url=https://msdn.microsoft.com/en-us/library/system.text.encoding.windowscodepage(v=vs.110).aspx |title=Encoding.WindowsCodePage Property - .NET Framework (current version) |work=MSDN |publisher=Microsoft}}</ref> The [[W3C]]/[[WHATWG]] encoding standard used by [[HTML5]] treats the label "'''shift_jis'''" interchangeably with "windows-31j" with the intent of being "compatible with deployed content"<ref>{{cite web | url=https://encoding.spec.whatwg.org/#names-and-labels | title=4.2. Names and labels | publisher=WHATWG | work=Encoding Standard}}</ref> and matches Windows code page 932 (including the "formerly proprietary extensions from IBM and NEC").<ref>{{cite web | url=https://encoding.spec.whatwg.org/#index-jis0208 | title=5. Indexes (§ Index jis0208) | publisher=WHATWG | work=Encoding Standard}}</ref>

Windows code page 932 is also called '''MS_Kanji''',<ref name="icuwindows31j" /><ref>{{cite web | url=https://docs.python.org/3.6/library/codecs.html#standard-encodings | title=7.2.3. Standard Encodings | publisher=Python Software Foundation | work=Python 3.6 Documentation | accessdate=19 September 2017}}</ref> although IANA treat MS_Kanji as an alias for standard Shift JIS.<ref name="iana31j"/>