1#' Check if a string is lowercase. 2#' 3#' Return \code{TRUE} if all cased characters in the string are lowercase and there is at least one 4#' cased character, \code{FALSE} otherwise. 5#' 6#' @param str A character vector. 7#' 8#' @return A logical vector. 9#' 10#' @references \url{https://docs.python.org/3/library/stdtypes.html#str.islower} 11#' 12#' @seealso \code{\link{pystr_isupper}} 13#' 14#' @examples 15#' pystr_islower("all lowercase!") 16#' pystr_islower("All Lowercase?") 17#' pystr_islower("abc123") 18#' 19#' @export 20pystr_islower <- function(str) { 21 return(pystr_islower_(str)) 22} 23