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All I know is if it hits a Chinese character, it should just leave it untouched, no matter if converting to or converting from. On 2024-07-01 10:13, Stefan Kangas wrote: > Dan Jacobson writes: > >> Indeed, >> japanese-hankaku-region >> japanese-zenkaku-region >> work. So maybe they should >> be available as >> halfwidth-woed >> halfwidth-region >> fullwidth-word >> fullwidth-region etc. >> in emacs -Q. > > Do they work for the full set of Chinese characters? > > I'm asking because Kazuhiro Ito writes: > >> [...] these functions don't support all characters because they are >> for traditional Japanese character set.