#arguments-parser #alloc #line #command #std #arg

bin+lib clip

A command line parser that doesn't use std or alloc!

2 releases

0.1.1 Aug 13, 2019
0.1.0 Aug 13, 2019

#585 in Memory management

22 downloads per month

Apache-2.0

10KB
207 lines

clip

A command line parser that doesn't use std or alloc!

Why?

I mainly did this for educational purposes. I've never written a library that did not use the std or alloc crates, so I wanted to learn how.

I also think the portability of this crate will be useful in implementing Rusty-CI

Example

extern crate clip;

use clip::App;
use std::env::args;


fn main() {
    let strings = &args().collect::<Vec<String>>()[..];
    let values: Vec<&str> = strings.iter().map(|s| &**s).collect();


    let mut app = App::new(&values[1..])
                .name("name")
                .flag("--input", 1)
                .flag("--output", 1)
                .flag("--link", -1)
                ;
    app.parse();

    println!(
        "name: {}\ninput: {}\noutput: {}\nlink: {:?}",
        app.get("name")[0],
        app.get("--input")[0],
        app.get("--output")[0],
        app.get("--link"),
    )
}

No runtime deps