fn lookup_width_cjk(c: char) -> (u8, WidthInfo)Expand description
Returns the UAX #11 based width of c by
consulting a multi-level lookup table.
ยงMaintenance
The tables themselves are autogenerated but this function is hardcoded. You should have
nothing to worry about if you re-run unicode.py (for example, when updating Unicode.)
However, if you change the actual structure of the lookup tables (perhaps by editing the
make_tables function in unicode.py) you must ensure that this code reflects those changes.