East_Asian_Width of Yijing Hexagram Symbols

[Wáng Yifán]

> I was wondering why 4DC0..4DFF (Yijing Hexagram Symbols) are not considered Wide for the purpose of East_Asian_Width

Those symbols are certainly of historical CJK origin, but not from
traditional CJK character sets. In fact they are proposed by Western
experts (L2/01-283).

AFAIK, EAW is a data set to improve interoperability with environments
using some double-byte encoding schemes where display widths are tied
with byte sizes, so no meaningful value is defined for characters
which are not found in those legacy character encodings.

2022年9月15日(木) 20:46 Corentin via Unicode <unicode at corp.unicode.org>:
>
> Hello,
>
> I was wondering why 4DC0..4DFF (Yijing Hexagram Symbols) are not considered Wide for the purpose of East_Asian_Width
>
> If I understand correctly, they are CJK characters and they certainly look like other CJK characters.
>
> Thanks a lot,
>
> Corentin Jabot
>
>