Utf8.next
From GiderosMobile
Available since: Gideros 2016.06
Class: utf8
Description
Iterates through the UTF-8 string s.
(varies) = utf8.next(s,charpos,offset)
If only s is given, it can used as a iterator:
for pos, code in utf8.next, "utf8-string" do
-- ...
end
If only charpos is given, returns the next byte offset of in string.
If charpos and offset are given, a new charpos will be calculated, by add/subtract UTF-8 char offset to current charpos.
In all cases, it returns a new char position (in bytes), and code point (a number) at this position.
Parameters
s: (string)
charpos: (number) optional
offset: (number) optional
Return values
Returns (varies) next iteration
