// count-lines-words-letters.el — composite count test.
// Input "Hello world\nGoodbye world\n":
//   lines:   2 (each \n closes a line)
//   words:   4 (Hello, world, Goodbye, world)
//   letters: 22 (Hello=5 + world=5 + Goodbye=7 + world=5)
fn run_test() -> String {
    let s: String = "Hello world\nGoodbye world\n"
    let lines: Int = str_count_lines(s)
    let words: Int = str_count_words(s)
    let letters: Int = str_count_letters(s)
    return int_to_str(lines) + "/" + int_to_str(words) + "/" + int_to_str(letters)
}

fn main() -> Void {
    println(run_test())
}