Fixed matches, coll()

• coll() instead of fixed() for non-English text, as it implements the full rules for capitalization as used by the specified locale.

str_view("i İ ı I", fixed("İ", ignore_case = TRUE))

## [1] │ i <İ> ı I

str_view("i İ ı I", coll("İ", ignore_case = TRUE, locale = "tr"))

## [1] │ <i> <İ> ı I