Nice this does the job, probably could be done more efficiently, but I like that its not a kitchen-sink library. Unfortunate that the data generator is certainly not "clean C"... perl, ruby, and julia, all to generate character width table? Ugh. Otherwise this lib does a pretty good job. Thanks for the reference!

edit* Yikes https://github.com/JuliaStrings/utf8proc/blob/master/utf8pro... Still this is a good template to maybe cut a (safter) state-based iterator out of their logic...