I suggest that ruff should update the code for detecting ambiguous unicode characters with following VSCode's code.

[yuji38kwmt]

Python code

sample.py

# HIRAGANA LETTER
"""
あいうえお
かきくけこ
さしすせそ
たちつてと
なにぬねの
はひふへほ
まみむめも
やゆよ
らりるれろ
わゐゑを
ん
"""

# KATAKANA LETTER
"""
アイウエオ
カキクケコ
サシスセソ
タチツテト
ナニヌネノ
ハヒフヘホ
マミムメモ
ヤユヨ
ラリルレロ
ワヰヱヲ
ン
"""

Command

$ ruff check sample.py --select RUF
sample.py:22:5: RUF001 [*] String contains ambiguous unicode character `ノ` (did you mean `/`?)
Found 1 error.
[*] 1 potentially fixable with the --fix option.

Issue

The above python code contains all HIRAGANA and KATAKANA LETTERS, but Ruff only identifies ノ (Katakana Letter No) as an ambiguous unicode character.

Ruff's code for detecting ambiguous Unicode characters was ported from VSCode's code, but this code was modified in 2021. In March 2023, VSCode fixed the code. Therefore, I suggest that Ruff should update its code for detecting ambiguous Unicode characters.

Settings

no pyproject.toml

Version

$ ruff --version
ruff 0.0.264

[charliermarsh]

Nice, we'll pull in this update, thanks.