Thanks Lowell, but it doesn't seem to be the same standard I'm referring to.

In standard Code128, if you code 'bananas', you'll get ÑbananasÈÓ (it always starts with capital Ñ and ends with Ó).

Pass 'bananas' to this function and you'll get 'š' and a weird character in the end... they must be pretty similar standards, but not equal.