Count the words and characters, with or without whitespaces.
use words_count::WordsCount;
assert_eq!(WordsCount {
words: 20,
characters: 31,
whitespaces: 2,
cjk: 18,
}, words_count::count("Rust是由 Mozilla 主導開發的通用、編譯型程式語言。"));
let result = words_count::count_separately("apple banana apple");
assert_eq!(2, result.len());
assert_eq!(Some(&2), result.get("apple"));