Clarify the behavior of Cyrillic characters

[andkov]

When performing string manipulations on Ukrainian characters, it sometimes does not recognize and/or transforms the matched characters:

Sys.setlocale("LC_CTYPE", "russian")
Sys.setlocale("LC_CTYPE", "ukr")
d <- tibble::tribble(
  ~a , ~ b,
  "громада", "область"
)
d %>% mutate(a = str_remove(a,"гр"))

Please investigate this behavior and report possible solutions

[Tytser]

Did you try to perform this operation without setting the locale to ukr/rus? Because I get the right result despite errors for both Sys.setlocale commands