args.rs

struct Configuration {
    wiki_url: String
}

lazy_static! {
    static ref CONFIGURATION: Configuration = parse_arguments();
}

fn main() {
    // Parse the arguments (again) to see if a help message needs to be printed
    parse_arguments();
    
    // Initial setup
    let mut main = Cursive::default();

    // Set theme
    main.set_theme(theme_gen());


    main.add_global_callback('q', |s| s.quit());
    main.add_global_callback('s', |s| search(s));

    main.run();
}

fn parse_arguments() -> Configuration {
    let matches = App::new("Taizen")
        .version("0.1.0")
        .author("NerdyPepper")
        .about("TUI MediaWiki browser")
        .arg(Arg::with_name("URL")
             .help("The URL of the wiki to be viewed")
             .index(1))
        .arg(Arg::with_name("lang")
             .short("l")
             .long("lang")
             .value_name("CODE")
             .help("Choose the language for Wikipedia")
             .takes_value(true))
        .get_matches();

    if matches.is_present("HELP") {
        std::process::exit(0);
    }
                               
    let lang = matches.value_of("lang").unwrap_or("en").to_string();
    let wiki_url = matches.value_of("URL").unwrap_or(&format!("https://{}.wikipedia.org", lang)).to_string();
    
    Configuration {
        wiki_url
    }
}