# Inpt
Inpt is a derive crate for dumb type-level text parsing.
Read the [lastest documentation](https://samsartor.gitlab.io/inpt/inpt/index.html) for more information.
## Introduction
Imagine you need to chop up an annoying string and convert all the bits to useful types.
You could write that sort of code by hand using `split` and `from_str`, but the boiler-plate
of unwrapping and checking quickly looses all charm. Especially since that sort of parsing
shows up a lot in timed programming competitions like [advent of code](https://adventofcode.com).
Inpt tries to write that sort of parsing code for you, automatically splitting input strings
based on field types and an optional regex. Inpt is absolutely _not_ performant, strict, or formal.
Whenever possible, it does the obvious thing:
<div style="display: flex; flex-direction: row; align-items: stretch; gap: 1em">
```rust
#[inpt::main]
fn main(x: f32, y: f32) {
println!("{}", x * y);
}
```
```text
```
</div>
## Example
```rust
use inpt::{Inpt, inpt};
#[derive(Inpt)]
#[inpt(regex = r"(.)=([-\d]+)\.\.([-\d]+),?")]
struct Axis {
name: char,
start: i32,
end: i32,
}
#[derive(Inpt)]
#[inpt(regex = "target area:")]
struct Target {
#[inpt(after)]
axes: Vec<Axis>,
}
impl Target {
fn area(&self) -> i32 {
self.axes.iter().map(|Axis { start, end, ..}| end - start).product()
}
}
let target = inpt::<Target>("target area: x=119..176, y=-114..84").unwrap();
assert_eq!(target.area(), 11286);
```