unicode_hfwidth

Function to_standard_width

Source 
pub fn to_standard_width(ch: char) -> Option<char>
Expand description

Returns the standard-width form for ch. If ch is not in the Unicode “Halfwidth and Fullwidth forms” block, returns None.

§Example

assert_eq!(unicode_hfwidth::to_standard_width('カ'), None);
assert_eq!(unicode_hfwidth::to_standard_width('ｶ'), Some('カ'));
assert_eq!(unicode_hfwidth::to_standard_width('ａ'), Some('a'));