Trait unicode_width::UnicodeWidthChar [−][src]
pub trait UnicodeWidthChar {
fn width(self) -> Option<usize>;
fn width_cjk(self) -> Option<usize>;
}Expand description
Methods for determining displayed width of Unicode characters.
Required methods
Returns the character’s displayed width in columns, or None if the
character is a control character other than '\x00'.
This function treats characters in the Ambiguous category according to Unicode Standard Annex #11 as 1 column wide. This is consistent with the recommendations for non-CJK contexts, or when the context cannot be reliably determined.
Returns the character’s displayed width in columns, or None if the
character is a control character other than '\x00'.
This function treats characters in the Ambiguous category according to Unicode Standard Annex #11 as 2 columns wide. This is consistent with the recommendations for CJK contexts.