On Thu, 2023-10-26 at 23:22 +0200, Daniel Verite wrote: > Neither does Unicode, which is why the ICU functions like u_isupper() > or u_toupper() don't take a locale argument.
u_strToUpper() accepts a locale argument: https://unicode-org.github.io/icu-docs/apidoc/dev/icu4c/ustring_8h.html#aa64fbd4ad23af84d01c931d7cfa25f89 See also the part about tailorings here: https://www.unicode.org/versions/Unicode15.1.0/ch03.pdf#G33992 Regards, Jeff Davis
