[Libreoffice-bugs] [Bug 125363] UI: LibreOffice Calc's AutoFilter treats combining and modifier letters the same as plain letters in the value list

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=125363

--- Comment #8 from himajin100000 at gmail.com ---
006F  ; [.213C.0020.0002] # LATIN SMALL LETTER O
0366  ; [.213C.0020.0004] # COMBINING LATIN SMALL LETTER O

1D49  ; [.2007.0020.0014] # MODIFIER LETTER SMALL E
0065  ; [.2007.0020.0002] # LATIN SMALL LETTER E

https://dencode.com/en/string/unicode-normalization
https://unicode.org/reports/tr10/#Main_Algorithm
http://www.unicode.org/Public/UCA/13.0.0/allkeys.txt
https://opengrok.libreoffice.org/xref/core/sc/source/core/data/global.cxx?r=3ac9f491#1045
https://opengrok.libreoffice.org/xref/core/offapi/com/sun/star/i18n/CollatorOptions.idl?r=944eb990#31
https://opengrok.libreoffice.org/xref/core/i18npool/source/collator/collator_unicode.cxx?r=b122a39c#411

I guess that the cause of bug is, whatever the appropriate implementation is,
that these letters only differs in TERTIARY weight, but the option sets the
collator's strength to SECONDARY.

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