“Code page 932 (IBM)”的意思、由来-开放百科全书

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Code page 932 (IBM)

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{{about|IBM's Code Page 932|the Microsoft Windows code page 932|Code page 932 (Microsoft Windows)}}IBM code page 932 (abbreviated as IBM-932^[1] or ambiguously as CP932) is one of IBM's extensions of Shift JIS. The coded character sets are JIS X 0201:1976, JIS X 0208:1983,^[1] IBM extensions and IBM extensions for IBM 1880 UDC. It is the combination of the single-byte Code page 897 and the double-byte Code page 301.^[2]

IBM-932 resembles IBM-943. One difference is that IBM-932 encodes the JIS X 0208:1983 characters but preserves the 1978 ordering, whereas IBM-943 uses the 1983 ordering^[1] (i.e. the character variant swaps made in JIS X 0208:1983). Another difference is that IBM-932 does not incorporate the NEC selected extensions, which IBM-943 includes for Microsoft compatibility.^[1]

IBM-942 includes the same double-byte codes as IBM-932 (those from Code page 301) but includes additional single-byte extensions. International Components for Unicode treats "ibm-932" and "ibm-942" as aliases for the same decoder.^[3]

IBM-932 contains 7-bit ISO 646 codes, and Japanese characters are indicated by the high bit of the first byte being set to 1. Some code points in this page require a second byte, so characters use either 8 or 16 bits for encoding.

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1. ^¹²³{{cite web | url=https://www.ibm.com/support/knowledgecenter/en/ssw_aix_71/com.ibm.aix.nlsgdrf/ibm-943_ibm-932.htm | title=IBM-943 and IBM-932 | publisher=IBM | work=IBM Knowledge Center}}
2. ^{{cite web | url=http://www-01.ibm.com/software/globalization/ccsid/ccsid932.html | title=Coded character set identifiers - CCSID 932 | publisher=IBM | work=IBM Globalization | archive-url=https://web.archive.org/web/20160327100850/http://www-01.ibm.com/software/globalization/ccsid/ccsid932.html | archive-date=2016-03-27 | dead-url=yes}}
3. ^{{cite web | url=http://demo.icu-project.org/icu-bin/convexp?conv=ibm-942 | title=Converter Explorer: ibm-942_P12A-1999 | publisher=International Components for Unicode | work=ICU Demonstration}}

External links

IBM Code Page 932{{DOS-stub}}

2 : Character sets|Encodings of Japanese

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