Global Clap Matches

Cargo.toml

[package]
name = "tryclap"
version = "0.1.0"
authors = ["Jianing Yang <jianingy.yang@gmail.com>"]

[dependencies]
lazy_static = "0.1.*"

[dependencies.clap]
version = "2"
features = [ "suggestions", "color", "unstable" ]

main.rs

#[macro_use] extern crate lazy_static;
#[macro_use] extern crate clap;
use clap::ArgMatches;

lazy_static! {
    static ref OPTIONS: ArgMatches<'static> = {
        clap_app!(
            tweezer =>
                (version: "0.1.0")
                (author: "Jianing Yang <jianingy.yang@gmail.com>")
                (about: "naive bayes based spam classifier")
                (@arg verbose: -v ... "set verbose mode.")
                (@arg val1: --val1 +takes_value "val1")
                (@arg val2: --val2 +takes_value "val2")
        ).get_matches()
    };
}

fn main() {
    println!("Hello, world!");


    func1();
    func2();
}

fn func1() {
    println!("{:?}", OPTIONS.value_of("val1"));
}

fn func2() {
    println!("{:?}", OPTIONS.value_of("val2"));
}