I recommend trying fuzz testing, it can be very effective (see my experiences here: http://forwardscattering.org/post/21 http://forwardscattering.org/post/21) U

I recommend trying fuzz testing, it can be very effective (see my experiences here: http://forwardscattering.org/post/21 http://forwardscattering.org/post/21) Utf8-rewind looks like a nice library, I have looked into it before when researching unicode support. If I need to do more complex Unicode stuff in my language I will probably use it.