Reading and Writing outputs from athena++

While working with athena++, I realised that reading the outputs was quite a slow process. athers was born out of my desire to write a performant reader (and perhaps writer?) for athena data. With performance in mind, I naturally decided to write it in Rust.

Straightaway, we are hit with the realization of how non-trivial the parsing of an athinput file is. Following was my solution:

pub enum AthinputValue {
    Int(i64),
    Float(f64),
    Complex(Complex64),
    Text(String),
}