Text after certain character disappears

[aoyama-val]

Text after " ◯" disappears.

sample2.txt

$ cat sample2.txt
 column1 |  column2
---------+------------
 ◯ほげ   | 2023-06-04
 b       | 2023-06-05

$ ov --config /dev/null sample2.txt

Deleted "◯" from the file, and "ほげ" was displayed correctly, so I guess "◯" was the culprit.
The terminal emulator is iTerm2 and this problem occurs only when Ambiguous characters are double-width is checked.

When it is not checked, it is displayed as follows:

[noborus]

If you check Ambiguous characters are double-width, also set RUNEWIDTH_EASTASIAN=1.

export RUNEWIDTH_EASTASIAN=1
ov sample2.txt

I'd like to do this automatically, but I don't know how.
However, if you match this environment variable with the terminal, it will work correctly with many other TUIs.

[aoyama-val]

Thanks for the answer. It's working!
But I wonder why go-runewidth couldn't detect from environment variables that my terminal is CJK.
https://github.com/mattn/go-runewidth/blob/2c6a438f68cfe01255a90824599da41fdf76d1e2/runewidth_posix.go#L63

$ locale
LANG="ja_JP.UTF-8"
LC_COLLATE="C"
LC_CTYPE="ja_JP.UTF-8"
LC_MESSAGES="ja_JP.UTF-8"
LC_MONETARY="ja_JP.UTF-8"
LC_NUMERIC="ja_JP.UTF-8"
LC_TIME="ja_JP.UTF-8"
LC_ALL=

Anyway please close the issue.

[noborus]

This seems to be an issue for others as well so moving to discussion.