Unified Hangul Code

"Code page 949" redirects here. For the IBM code page, see Code page 949 (IBM).
Unified Hangul Code
Layout of the Unified Hangul Code
Alias(es)
  • Windows Code Page 949
  • IBM Code Page 1363
Language(s)Korean
StandardWHATWG Encoding Standard (as "EUC-KR")[1]
Classification
ExtendsEUC-KR
Other related encoding(s)
  1. ^ Not in the strictest sense of the term, as ASCII bytes can appear as trail bytes, although this is limited to letter bytes.

Unified Hangul Code (UHC),[2][a] or Extended Wansung,[4][b] also known under Microsoft Windows as Code Page 949 (Windows-949, MS949 or ambiguously CP949), is the Microsoft Windows code page for the Korean language. It is an extension of Wansung Code (KS C 5601:1987, encoded as EUC-KR) to include all 11172 non-partial Hangul syllables present in Johab (KS C 5601:1992 annex 3).[4][2] This corresponds to the pre-composed syllables available in Unicode 2.0 and later.

Wansung Code has the drawback that it only assigns codes for the 2350 precomposed Hangul syllables which have their own KS X 1001 (KS C 5601) codepoints (out of 11172 in total, not counting those using obsolete jamo), and requires others to use eight-byte composition sequences, which are not supported by some partial implementations of the standard.[5] UHC resolves this by assigning single codes for all possible syllables constructed using modern jamo, by making assignments outside of the encoding space used for KS X 1001.

The lead byte range is extended to 0x81–FE, and the trail byte range is extended to 0x41–5A, 0x61–7A and 0x81–FE (in EUC-KR, both ranges are 0xA1–FE). The codes outside the EUC-KR ranges are used for the additional hangul.[6] If considered separately, both the EUC-KR Hangul block and the UHC extended Hangul section are in Unicode order.[1]

  1. ^ a b Cite error: The named reference whatwgext was invoked but never defined (see the help page).
  2. ^ a b "INFO: Hangul (Korean) Character Sets", Microsoft Support, Microsoft
  3. ^ "한글 코드에 대하여" (in Korean). W3C.
  4. ^ a b Zsigri, Gyula (2002-06-18). "KSC and UHC".
  5. ^ Shin, Jungshik. "What are KS X 1001(KS C 5601) and other Hangul codes?". Hangul & Internet in Korea FAQ.
  6. ^ Lunde, Ken (13 January 2009). "Appendix F: Vendor encoding Methods" (PDF). CJKV Information Processing (2nd ed.). O'Reilly Media. ISBN 978-0-596-51447-1.


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