A comparision of the results returned by glibc's wcwidth, rust's unicode-width
and xterm's version, all three of which are in use today!!
make
./a.out [any argument treats Ambiguous category cjk characters as 2-wide]
This script runs through all unicode codepoints from 0 to U+10FFFF. I wonder why the columns are misaligned! A pager is highly recommended for an optimal experience.
(At the moment I still hold some hope there is a mistake in my translation of the rust code, or some other error)