What unix does is closer to [NonZeroU8] which is actually very helpful as can be seen in shell commands like find -print0 | xargs -0, since a NUL character is g

What unix does is closer to [NonZeroU8] which is actually very helpful as can be seen in shell commands like find -print0 | xargs -0, since a NUL character is guarenteed to not be part of the actual arguments. You could do the same here, but I suspect the program in question does not support NUL characters in their strings for the same reason unix doesn't (because that's what C does).