Longest Word in Rust

Welcome to the Longest Word in Rust page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

use std::env::args;
use std::process::exit;

fn usage() -> ! {
    println!("Usage: please provide a string");
    exit(0);
}

fn get_longest_word_len(s: &str) -> usize {
    s.trim()
        .split_whitespace()
        .map(|t| t.len())
        .max()
        .unwrap()
}

fn main() {
    let mut args = args().skip(1);

    // Exit if 1st command-line argument is empty
    let s: &str = &args
        .next()
        .unwrap_or_else(|| usage());
    if s.len() < 1 {
        usage();
    }

    // Get longest word length and display it
    println!("{}", get_longest_word_len(s));
}

Longest Word in Rust was written by:

• rzuckerm

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.