Give them some rope

Str2Pos.rakumod

role Str2Pos does Positional does Iterable {
    has $!b handles <elems EXIST-POS> = self.encode;
    method AT-POS(\i) { $!b[i].chr }
    method iterator { (.chr for $!b.list).iterator }
}

my @s := "Give them some rope" but Str2Pos;

dd @s[3,8,11];
dd @s.list;
for @s { .say };