Crate adhoc_derive

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Expand description

This crate allows you to derive a std::str::FromStr implementation based on a regex provided via macro attribute.

ⓘ
use adhoc_derive::FromStr;
#[derive(FromStr)]
#[adhoc(regex = r"^#(?P<id>\d+) @ (?P<x>\d+),(?P<y>\d+): (?P<width>\d+)x(?P<height>\d+)$")]
struct Rectangle {
    id: usize,
    x: usize,
    y: usize,
    width: usize,
    height: usize,
}

let rect: Rectangle = "#123 @ 3,2: 5x4".parse().unwrap();
assert_eq!(123, rect.id);
assert_eq!(3, rect.x);
assert_eq!(2, rect.y);
assert_eq!(5, rect.width);
assert_eq!(4, rect.height);

Refer to GUIDE.md for more examples.

Derive Macros§