KOI8-R

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KOI8-R
Alias(es)cp878 (code page 878)
LanguageTemplate:Pluralize from textRussian, Bulgarian
Classification8-bit KOI, extended ASCII
ExtendsKOI8-B
Based onKOI-8
Other related encodingTemplate:Pluralize from textKOI8-U, KOI8-RU

KOI8-R (RFC 1489) is an 8-bit character encoding derived from the KOI-8 encoding by the programmer Andrei Chernov in 1993 and designed to cover Russian, which uses the Russian subset of a Cyrillic script. KOI-8, in turn, is an 8-bit extension of the KOI-7 encoding, which inherited a phonetic correspondence of Russian and Latin letters from the MTK-2 teletype code. As a result, Russian Cyrillic letters in KOI8-R are in pseudo-Latin alphabetical order rather than the normal Cyrillic one like in ISO 8859-5. Although this may seem unnatural, this has the useful effect that if the 8th bit is stripped, the text remains partially readable in any ASCII-based encoding (including KOI8-R itself) as a case-reversed transliteration. For example, "Код для обмена и обработки информации" (the Russian meaning of the "KOI" acronym) becomes kOD DLQ OBMENA I OBRABOTKI INFORMACII.

KOI-8 stands for 8-bitnyy kod dlya obmena i obrabotki informatsii (Template:Langx) which means "8-Bit Code for Information Interchange".[1] In Microsoft Windows, KOI8-R is assigned the code page number 20866. In IBM, KOI8-R is assigned code page 878.[2][3] KOI8-R also happens to cover Bulgarian.

It lacks proper quotation marks for these languages: both «...» and the Bulgarian „...“. Windows-1251 does support these, as well as more letters, and has thus become more popular. KOI8-R is used by less than 0.004% of websites, mostly Russian and Bulgarian.[citation needed] Unicode and UTF-8 is preferred to single-byte Cyrillic encodings in modern applications, Unicode contains 436 Cyrillic letters including for Old Cyrillic.

Character set

The following table shows the KOI8-R encoding. Each character is shown with its equivalent Unicode code point.

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See also

References

  1. ^ Template:In lang ГОСТ 19768-74 (СТ СЭВ 358-76). Машины вычислительные и система обработки данных. Коды 8-битные для обмена и обработки информации.
  2. ^ Page Module:Citation/CS1/styles.css has no content."SBCS code page information - CPGID: 00878 / Name: Russian internet koi8-r". IBM Software: Globalization: Coded character sets and related resources: Code pages by CPGID: Code page identifiers. IBM. C-H 3-3220-050. Archived from the original on 2017-02-18. Retrieved 2017-02-18.
  3. ^ Page Module:Citation/CS1/styles.css has no content."CCSID information document; CCSID 878; KOI8-R CYRILLIC". IBM. Retrieved 2017-02-18.

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Further reading

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