CJKV Information Processing, 2nd Edition

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Chapter 4: Encoding Methods

Microso Code PagesTable 4-84.

Code Page Characteristics

949 KS X 1001:2004 character set, Unied Hangul Code encoding, remaining 8,822 hangul as extension

950 Big Five character set, Big Five encoding, Microsoft extensions (actually, only the ETen extensions of Row

9)

1258 TCVN-Roman character set

1361 Johab character set, Johab encoding

Although the Code Page designations of Microso Code Pages have remained the same

over the years, their contents or denitions have been expanded to cover additional char-

acters or new encodings that are true supersets of the previous version. Code Page 936,

for example, was once the GB 2312-80 character set encoded according to EUC-CN en-

coding, but is now based on GBK. Also, Code Page 949 was once the KS X 1001:2004

character set encoded according to EUC-KR, but is now dened as Unied Hangul Code

(UHC) encoding, which is detailed in Appendix F.

Code Conversion

Put simply, code conversion is interoperability between encodings. Given that encodings

must interoperate, code conversion is a necessary—and a very fundamental and basic—

task that even the simplest text-processing soware must perform. And code conversion

must be done correctly, or else any subsequent processing that is performed will propa-

gate any errors that were introduced, such as incorrect or missing characters.

Conversion of CJKV text from one