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rust check if argument is set

Zwazel answered on September 19, 2022 Popularity 2/10 Helpfulness 9/10

answer rust check if argument is set

rust check if argument is set

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    let args: Vec<String> = env::args().collect();
    let mut port = PORT;
    let mut host = HOST;
    let mut amount_of_players = 2;
    match args.len() {
        1 => {
            // no args
            println!("Default settings as no args passed, PORT: {}, HOST: {}, PLAYERS: {}", PORT, HOST, amount_of_players);
        }
        2 => {
            port = args[1].parse().unwrap();
            println!("Port has been set to: {}", port);
        }
        3 => {
            port = args[1].parse().unwrap();
            host = translate_host(&*args[2]);
            println!("Port has been set to: {}, Host has been set to: {}", port, host);
        }
        4 => {
            port = args[1].parse().unwrap();
            host = translate_host(&*args[2]);
            amount_of_players = args[3].parse().unwrap();
            println!("Port has been set to: {}, Host has been set to: {}, Amount of players has been set to: {}", port, host, amount_of_players);
        }
        _ => {
            // more than one arg
            println!("Too many args passed, set to default, PORT: {}, HOST: {}, PLAYERS: {}", PORT, HOST, amount_of_players);
        }
    };

Popularity 2/10 Helpfulness 9/10 Language rust

Source: doc.rust-lang.org

Tags: rust set

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Contributed on Sep 19 2022

Zwazel

0 Answers Avg Quality 2/10

rust check if argument is set

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