:- module string_tokenize. :- interface. :- import_module io. :- pred main(io::di, io::uo) is det. :- implementation. :- import_module list, string. main(!IO) :- Tokens = string.split_at_char((','), "Hello,How,Are,You,Today"), io.write_list(Tokens, ".", io.write_string, !IO), io.nl(!IO).