Editing Code page 866 (section)

==={{anchor|CP1125|CP1131}}Ukrainian and Belarusian variants ===
Ukrainian standard RST 2018-91 is designated by IBM as Code page 1125 (CCSID 1125),<ref>{{cite web|title=CCSID 1125 information document|archive-url=https://web.archive.org/web/20141202002732/http://www-01.ibm.com/software/globalization/ccsid/ccsid1125.html|archive-date=2014-12-02|url=http://www-01.ibm.com/software/globalization/ccsid/ccsid1125.html}}</ref> abbreviated CP1125, and also known as CP866U, CP866NAV or RUSCII.<ref>{{cite web |title=Review of 8-bit Cyrillic encodings universe |author-first=Valentin |author-last=Nechayev |date=2013 |orig-year=2001 |url=http://segfault.kiev.ua/cyrillic-encodings/ |url-status=live |archive-url=https://web.archive.org/web/20161205134629/http://segfault.kiev.ua/cyrillic-encodings/ |archive-date=2016-12-05}}</ref> It matches the original Alternative code page for all points except for F2<sub>hex</sub> through F9<sub>hex</sub> inclusive, which are replaced with [[Ukrainian language|Ukrainian]] letters.<ref name="CP1125_2"/> Code page/CCSID 1131<ref>{{cite web|title=CCSID 1131 information document|archive-url=https://web.archive.org/web/20160327040306/http://www-01.ibm.com/software/globalization/ccsid/ccsid1131.html|archive-date=2016-03-27|url=http://www-01.ibm.com/software/globalization/ccsid/ccsid1131.html}}</ref><ref>{{cite web|title=Code page 1131 information document|archive-url=https://web.archive.org/web/20160317053255/http://www-01.ibm.com/software/globalization/cp/cp01131.html|archive-date=2016-03-17|url=https://www-01.ibm.com/software/globalization/cp/cp01131.html}}</ref> matches code page 866 for all points except for F8<sub>hex</sub>, F9<sub>hex</sub>, and FC<sub>hex</sub> through FE<sub>hex</sub> inclusive, which are replaced with otherwise-missing Ukrainian and [[Belarusian language|Belarusian]] letters, in the process displacing the [[bullet point|bullet character]] (∙) from F9<sub>hex</sub> to FE<sub>hex</sub>.<ref>{{cite web|url=https://www-01.ibm.com/software/globalization/cp/cp01131.html|title=Code page identifiers: CP 01131|website=IBM Globalization|author=IBM|archive-url=https://web.archive.org/web/20160317053255/http://www-01.ibm.com/software/globalization/cp/cp01131.html|archive-date=2016-03-17|url-status=dead}}</ref><ref>{{cite web|url=https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01131.pdf|archive-url=https://web.archive.org/web/20150708123408/http://www-03.ibm.com/systems/resources/systems_i_software_globalization_pdf_cp01131z.pdf|archive-date=2015-07-08|url-status=live|title=Code Page 01131|author=IBM}}</ref> The differing rows are shown below.

{|{{chset-table-header1|IBM code page 1125 (Ukrainian standard RST 2018-91)<ref name="CP1125_2">{{Citation|title=Code Page CPGID 01125 (pdf)|url=https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01125.pdf|publisher=IBM}}</ref><ref>{{Citation|title=Code Page CPGID 01125 (txt)|url=https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01125.txt|publisher=IBM}}</ref><ref>{{Citation|title=International Components for Unicode (ICU), ibm-1125_P100-1997.ucm|url=https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/ibm-1125_P100-1997.ucm|date=2002-12-03}}</ref><ref>{{in lang|uk}} РСТ УРСР 2018-91. Система обробки інформації. Кодування символів української абетки 8-бітними кодами.</ref>}}
|-
|{{chset-left1|Fx}}
|{{chset-cell1|u=0401|U+0401 CYRILLIC CAPITAL LETTER IO|[[Ё]]}}
|{{chset-cell1|u=0451|U+0451 CYRILLIC SMALL LETTER IO|[[ё]]}}
|{{chset-cell1|u=0490|U+0490 CYRILLIC CAPITAL LETTER GHE WITH UPTURN|[[Ґ]]|style=background:#FFD}}
|{{chset-cell1|u=0491|U+0491 CYRILLIC SMALL LETTER GHE WITH UPTURN|[[ґ]]|style=background:#FFD}}
|{{chset-cell1|u=0404|U+0404 CYRILLIC CAPITAL LETTER UKRAINIAN IE|[[Є]]|style=background:#FFD}}
|{{chset-cell1|u=0454|U+0454 CYRILLIC SMALL LETTER UKRAINIAN IE|[[є]]|style=background:#FFD}}
|{{chset-cell1|u=0406|U+0406 CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I|[[І]]|style=background:#FFD}}
|{{chset-cell1|u=0456|U+0456 CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I|[[і]]|style=background:#FFD}}
|{{chset-cell1|u=0407|U+0407 CYRILLIC CAPITAL LETTER YI|[[Ї]]|style=background:#FFD}}
|{{chset-cell1|u=0457|U+0457 CYRILLIC SMALL LETTER YI|[[ї]]|style=background:#FFD}}
|{{chset-cell1|u=00F7|U+00F7 DIVISION SIGN|[[÷]]}}
|{{chset-cell1|u=00B1|U+00B1 PLUS-MINUS SIGN|[[±]]}}
|{{chset-cell1|u=2116|U+2116 NUMERO SIGN|[[№]]}}
|{{chset-cell1|u=00A4|U+00A4 CURRENCY SIGN|[[¤]]}}
|{{chset-cell1|u=25A0|U+25A0 BLACK SQUARE|[[■]]}}
|{{chset-ctrl1|u=00A0|U+00A0 NO-BREAK SPACE|[[Non-breaking space|NBSP]]}}
|}
{{Legend|#FFD|Code page 1125 different from Alternative code page}}

{|{{chset-table-header1|IBM code page 1131 (Belarusian)<ref>{{Citation|title=Code Page CPGID 01131 (pdf)|url=https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01131.pdf|publisher=IBM}}</ref><ref>{{Citation|title=Code Page CPGID 01131 (txt)|url=https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01131.txt|publisher=IBM}}</ref><ref>{{Citation|title=International Components for Unicode (ICU), ibm-1131_P100-1997.ucm|url=https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/ibm-1131_P100-1997.ucm|date=2002-12-03}}</ref>}}
|-
|{{chset-left1|Fx}}
|{{chset-cell1|u=0401|U+0401 CYRILLIC CAPITAL LETTER IO|[[Ё]]}}
|{{chset-cell1|u=0451|U+0451 CYRILLIC SMALL LETTER IO|[[ё]]}}
|{{chset-cell1|u=0404|U+0404 CYRILLIC CAPITAL LETTER UKRAINIAN IE|[[Є]]}}
|{{chset-cell1|u=0454|U+0454 CYRILLIC SMALL LETTER UKRAINIAN IE|[[є]]}}
|{{chset-cell1|u=0407|U+0407 CYRILLIC CAPITAL LETTER YI|[[Ї]]}}
|{{chset-cell1|u=0457|U+0457 CYRILLIC SMALL LETTER YI|[[ї]]}}
|{{chset-cell1|u=040E|U+040E CYRILLIC CAPITAL LETTER SHORT U|[[Ў]]}}
|{{chset-cell1|u=045E|U+045E CYRILLIC SMALL LETTER SHORT U|[[ў]]}}
|{{chset-cell1|u=0406|U+0406 CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I|[[І]]|style=background:#FFD}}
|{{chset-cell1|u=0456|U+0456 CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I|[[і]]|style=background:#FFD}}
|{{chset-cell1|u=00B7|U+00B7 MIDDLE DOT|[[·]]}}
|{{chset-cell1|u=00A4|U+00A4 CURRENCY SIGN|[[¤]]|style=background:#FFD}}
|{{chset-cell1|u=0490|U+0490 CYRILLIC CAPITAL LETTER GHE WITH UPTURN|[[Ґ]]|style=background:#FFD}}
|{{chset-cell1|u=0491|U+0491 CYRILLIC SMALL LETTER GHE WITH UPTURN|[[ґ]]|style=background:#FFD}}
|{{chset-cell1|u=2219|U+2219 BULLET OPERATOR|[[∙]]|style=background:#FFD}}
|{{chset-ctrl1|u=00A0|U+00A0 NO-BREAK SPACE|[[Non-breaking space|NBSP]]}}
|}
{{Legend|#FFD|Code page 1131 different from code page 866}}

Also, the so-called CP 866ukr code page is a modified version of CP866 with the replacement of Ўў by Іі. Unlike CP1125, it maintains full compatibility of Ukrainian letters with CP866, although Ґґ is missing. It is not included in the standard Windows distributions, but some users install a home-made patch<ref>{{cite web | url=http://alter.org.ua/en/soft/linux/wine_cp866u/ | title=Linux Wine + Far2l Ukrainian cp866 }}</ref> that allows using this encoding to work in command-line programs (such as [[FAR Manager]]) with filenames containing the Cyrillic Іі.