Function cjk::is_cjkish_codepoint

pub fn is_cjkish_codepoint(c: char) -> bool

is_cjkish_codepoint returns true if the character falls within the CJK or related unicode blocks. The CJK-ish unicode blocks do contain most chinese, japanese, korean, or vietnamese characters. However this comes at the price of specificity and contains many potentially illegible codepoints.