utf8Casefold

Converts a string into a form that is independent of case. The result will not correspond to any particular case, but can be compared for equality or ordered with the results of calling [glib.global.utf8Casefold] on other strings.

Note that calling [glib.global.utf8Casefold] followed by [glib.global.utf8Collate] is only an approximation to the correct linguistic case insensitive ordering, though it is a fairly good one. Getting this exactly right would require a more sophisticated collation function that takes case sensitivity into account. GLib does not currently provide such a function.