KOI-8

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This article is about KOI-8, defined by GOST 19768-74. For the misnomered "KOI-8 N1" and "KOI-8 N2" encodings defined by GOST R 34.303-92, see Code page 866 § GOST R 34.303-92.
"GOST 19768" redirects here. For the later 1987 encoding sometimes cited as such, and also dubbed "KOI-8 V1" by GOST R 34.303-92, see ISO-IR-153.
KOI-8
Language(s)Russian (basic support)
StandardGOST 19768-74
ClassificationExtended ISO 646, KOI
ExtensionsKOI8-B (KOI8-R, KOI8-U, KOI8-RU, KOI8-T, ISO-IR-111, KOI8-F)
Transforms / EncodesISO 646:IRV (lower)
KOI-7 N1 (upper)
Preceded byKOI-7
Succeeded byST SEV 358-88 (ISO-IR-153)
Other related encoding(s)INIS Cyrillic

KOI-8 (КОИ-8) is an 8-bit character set standardized in GOST 19768-74.[1][2] It is an extension of KOI-7 which allows the use of the Latin alphabet along with the Russian alphabet, both the upper and lower case letters, however, the letter Ёё and the uppercase Ъ are missed, the latter to avoid conflicts with the delete character (both are added in most extensions, see KOI8-B). The first 127 code points are identical to ASCII with the exception of the dollar sign $ (code point 24hex) replaced by the universal currency sign ¤. The rows x8_ and x9_ (code points 128–159) might be filled with the additional control characters from EBCDIC (code points 32–63).

This standard has become the base for the later Internet standards such as KOI8-R, KOI8-U, KOI8-RU and all the other derivatives.

Character set

The following table shows the KOI-8 encoding. Each character is shown with its equivalent Unicode code point.

KOI-8[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F
0_
0 		Template:Chset-color-ctrl|NUL
0000 		Template:Chset-color-ctrl|SOH
0001 		Template:Chset-color-ctrl|STX
0002 		Template:Chset-color-ctrl|ETX
0003 		Template:Chset-color-ctrl|EOT
0004 		Template:Chset-color-ctrl|ENQ
0005 		Template:Chset-color-ctrl|ACK
0006 		Template:Chset-color-ctrl|BEL
0007 		Template:Chset-color-ctrl|BS
0008 		Template:Chset-color-ctrl|HT
0009 		Template:Chset-color-ctrl|LF
000A 		Template:Chset-color-ctrl|VT
000B 		Template:Chset-color-ctrl|FF
000C 		Template:Chset-color-ctrl|CR
000D 		Template:Chset-color-ctrl|SO
000E 		Template:Chset-color-ctrl|SI
000F
1_
16 		Template:Chset-color-ctrl|DLE
0010 		Template:Chset-color-ctrl|DC1
0011 		Template:Chset-color-ctrl|DC2
0012 		Template:Chset-color-ctrl|DC3
0013 		Template:Chset-color-ctrl|DC4
0014 		Template:Chset-color-ctrl|NAK
0015 		Template:Chset-color-ctrl|SYN
0016 		Template:Chset-color-ctrl|ETB
0017 		Template:Chset-color-ctrl|CAN
0018 		Template:Chset-color-ctrl|EM
0019 		Template:Chset-color-ctrl|SUB
001A 		Template:Chset-color-ctrl|ESC
001B 		Template:Chset-color-ctrl|FS
001C 		Template:Chset-color-ctrl|GS
001D 		Template:Chset-color-ctrl|RS
001E 		Template:Chset-color-ctrl|US
001F
2_
32 		Template:Chset-color-misc|SP
0020 		Template:Chset-color-punct|!
0021 		Template:Chset-color-punct|"
0022 		Template:Chset-color-punct|#
0023 		Template:Chset-color-graph|¤/$[a]
00A4/0024 		Template:Chset-color-punct|%
0025 		Template:Chset-color-punct|&
0026 		Template:Chset-color-punct|'
0027 		Template:Chset-color-punct|(
0028 		Template:Chset-color-punct|)
0029 		Template:Chset-color-punct|*
002A 		Template:Chset-color-graph|+
002B 		Template:Chset-color-punct|,
002C 		Template:Chset-color-punct|-
002D 		Template:Chset-color-punct|.
002E 		Template:Chset-color-punct|/
002F
3_
48 		Template:Chset-color-digit|0
0030 		Template:Chset-color-digit|1
0031 		Template:Chset-color-digit|2
0032 		Template:Chset-color-digit|3
0033 		Template:Chset-color-digit|4
0034 		Template:Chset-color-digit|5
0035 		Template:Chset-color-digit|6
0036 		Template:Chset-color-digit|7
0037 		Template:Chset-color-digit|8
0038 		Template:Chset-color-digit|9
0039 		Template:Chset-color-punct|:
003A 		Template:Chset-color-punct|;
003B 		Template:Chset-color-graph|<
003C 		Template:Chset-color-graph|=
003D 		Template:Chset-color-graph|>
003E 		Template:Chset-color-punct|?
003F
4_
64 		Template:Chset-color-punct|@
0040 		Template:Chset-color-letter|A
0041 		Template:Chset-color-letter|B
0042 		Template:Chset-color-letter|C
0043 		Template:Chset-color-letter|D
0044 		Template:Chset-color-letter|E
0045 		Template:Chset-color-letter|F
0046 		Template:Chset-color-letter|G
0047 		Template:Chset-color-letter|H
0048 		Template:Chset-color-letter|I
0049 		Template:Chset-color-letter|J
004A 		Template:Chset-color-letter|K
004B 		Template:Chset-color-letter|L
004C 		Template:Chset-color-letter|M
004D 		Template:Chset-color-letter|N
004E 		Template:Chset-color-letter|O
004F
5_
80 		Template:Chset-color-letter|P
0050 		Template:Chset-color-letter|Q
0051 		Template:Chset-color-letter|R
0052 		Template:Chset-color-letter|S
0053 		Template:Chset-color-letter|T
0054 		Template:Chset-color-letter|U
0055 		Template:Chset-color-letter|V
0056 		Template:Chset-color-letter|W
0057 		Template:Chset-color-letter|X
0058 		Template:Chset-color-letter|Y
0059 		Template:Chset-color-letter|Z
005A 		Template:Chset-color-punct|[
005B 		Template:Chset-color-punct|\
005C 		Template:Chset-color-punct|]
005D 		Template:Chset-color-graph|^
005E 		Template:Chset-color-punct|_
005F
6_
96 		Template:Chset-color-graph|`
0060 		Template:Chset-color-letter|a
0061 		Template:Chset-color-letter|b
0062 		Template:Chset-color-letter|c
0063 		Template:Chset-color-letter|d
0064 		Template:Chset-color-letter|e
0065 		Template:Chset-color-letter|f
0066 		Template:Chset-color-letter|g
0067 		Template:Chset-color-letter|h
0068 		Template:Chset-color-letter|i
0069 		Template:Chset-color-letter|j
006A 		Template:Chset-color-letter|k
006B 		Template:Chset-color-letter|l
006C 		Template:Chset-color-letter|m
006D 		Template:Chset-color-letter|n
006E 		Template:Chset-color-letter|o
006F
7_
112 		Template:Chset-color-letter|p
0070 		Template:Chset-color-letter|q
0071 		Template:Chset-color-letter|r
0072 		Template:Chset-color-letter|s
0073 		Template:Chset-color-letter|t
0074 		Template:Chset-color-letter|u
0075 		Template:Chset-color-letter|v
0076 		Template:Chset-color-letter|w
0077 		Template:Chset-color-letter|x
0078 		Template:Chset-color-letter|y
0079 		Template:Chset-color-letter|z
007A 		Template:Chset-color-punct|{
007B 		Template:Chset-color-graph||
007C 		Template:Chset-color-punct|}
007D 		Template:Chset-color-graph|~
007E 		Template:Chset-color-ctrl|DEL
007F
8_
128 		Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef|
9_
144 		Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef|
A_
160 		Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef|
B_
176 		Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef| Template:Chset-color-undef|
C_
192 		Template:Chset-color-letter|ю
044E 		Template:Chset-color-letter|а
0430 		Template:Chset-color-letter|б
0431 		Template:Chset-color-letter|ц
0446 		Template:Chset-color-letter|д
0434 		Template:Chset-color-letter|е
0435 		Template:Chset-color-letter|ф
0444 		Template:Chset-color-letter|г
0433 		Template:Chset-color-letter|х
0445 		Template:Chset-color-letter|и
0438 		Template:Chset-color-letter|й
0439 		Template:Chset-color-letter|к
043A 		Template:Chset-color-letter|л
043B 		Template:Chset-color-letter|м
043C 		Template:Chset-color-letter|н
043D 		Template:Chset-color-letter|о
043E
D_
208 		Template:Chset-color-letter|п
043F 		Template:Chset-color-letter|я
044F 		Template:Chset-color-letter|р
0440 		Template:Chset-color-letter|с
0441 		Template:Chset-color-letter|т
0442 		Template:Chset-color-letter|у
0443 		Template:Chset-color-letter|ж
0436 		Template:Chset-color-letter|в
0432 		Template:Chset-color-letter|ь
044C 		Template:Chset-color-letter|ы
044B 		Template:Chset-color-letter|з
0437 		Template:Chset-color-letter|ш
0448 		Template:Chset-color-letter|э
044D 		Template:Chset-color-letter|щ
0449 		Template:Chset-color-letter|ч
0447 		Template:Chset-color-letter|ъ
044A
E_
224 		Template:Chset-color-letter|Ю
042E 		Template:Chset-color-letter|А
0410 		Template:Chset-color-letter|Б
0411 		Template:Chset-color-letter|Ц
0426 		Template:Chset-color-letter|Д
0414 		Template:Chset-color-letter|Е
0415 		Template:Chset-color-letter|Ф
0424 		Template:Chset-color-letter|Г
0413 		Template:Chset-color-letter|Х
0425 		Template:Chset-color-letter|И
0418 		Template:Chset-color-letter|Й
0419 		Template:Chset-color-letter|К
041A 		Template:Chset-color-letter|Л
041B 		Template:Chset-color-letter|М
041C 		Template:Chset-color-letter|Н
041D 		Template:Chset-color-letter|О
041E
F_
240 		Template:Chset-color-letter|П
041F 		Template:Chset-color-letter|Я
042F 		Template:Chset-color-letter|Р
0420 		Template:Chset-color-letter|С
0421 		Template:Chset-color-letter|Т
0422 		Template:Chset-color-letter|У
0423 		Template:Chset-color-letter|Ж
0416 		Template:Chset-color-letter|В
0412 		Template:Chset-color-letter|Ь
042C 		Template:Chset-color-letter|Ы
042B 		Template:Chset-color-letter|З
0417 		Template:Chset-color-letter|Ш
0428 		Template:Chset-color-letter|Э
042D 		Template:Chset-color-letter|Щ
0429 		Template:Chset-color-letter|Ч
0427 		Template:Chset-color-undef|

  Letter   Number   Punctuation   Symbol   Other   Undefined

See also

Footnotes

  1. ^ Originally given as an international currency sign to match the ISO 646 IRV, which has itself since been changed to match ASCII in giving it as a dollar sign. KOI-8 variants and extensions in use tend to match ASCII here, see for example RFC 2319.

References

  1. ^ (in Russian) ГОСТ 19768-74 (СТ СЭВ 358-76). Машины вычислительные и система обработки данных. Коды 8-битные для обмена и обработки информации.
  2. ^ (in Russian) Маркелова Л. Н. Эксплуатация программоуправляемой вычислительной машины «Искра 226». — М.: Машиностроение, 1987. — С. 41—42.
  3. ^ "Locale::RecodeData::KOI_8 - search.cpan.org". search.cpan.org.
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