pub fn istitle<D: Dimension>(a: &StringArray<D>) -> FerrayResult<Array<bool, D>>Expand description
Return true where the string is titlecased and non-empty. Matches
numpy.strings.istitle / CPython str.istitle() (do_istitle):
uppercase/titlecase characters may only follow an uncased character
(they open a word), lowercase characters may only follow a cased
character, and at least one cased character is present. Titlecase
(Lt) characters such as Dž count as an opening (uppercase-position)
character, so "Dž" and "Džx" are titlecased.