Parse waypoints with Rust

parse_waypoints.rs

// https://doc.rust-lang.org/rust-by-example/error/iter_result.html#fail-the-entire-operation-with-collect

use std::num::ParseFloatError;

fn get_waypoints(path: String) -> Result<Vec<Vec<f64>>, ParseFloatError> {
    path
        .split(';')
        .map(|waypoint| waypoint.split(',').map(|c| c.parse::<f64>()).collect())
        .collect()
}

fn main() {
    let path = String::from("37.60,55.65;37.61,55.62");
    let waypoints = get_waypoints(path);
    
    println!("{:?}", waypoints);
}