Utf8.fold

Available since: Gideros 2016.06

Description

convert UTF-8 string s to folded case used to compare by ignore case. if s is a number, it's treat as a code point and return a convert code point (number). utf8.lower/utf8.upper has the same extension.

(string), = utf8.fold(s,)

's: (string) '
Returns (string) folded case string