Function unicode_hfwidth::is_nonstandard_width

pub fn is_nonstandard_width(ch: char) -> bool

Checks if ch is in the Unicode "Halfwidth and Fullwidth Forms" block.

Example

assert_eq!(unicode_hfwidth::is_nonstandard_width('カ'), false);
assert_eq!(unicode_hfwidth::is_nonstandard_width('ｶ'), true);