//! This package implements the core algorithm of the entire
//! workspace: parsing with derivatives by means of chain rule and
//! regular nulling languages.
//!
//! Since I shall not name my crate "core" to avoid collisions with
//! the Rust's own core, I decided to name this crate after what I
//! think is the essence of this algorithm, the chain-rule for
//! derivatives of languages.

pub mod grammar;

pub fn add(left: usize, right: usize) -> usize {
    left + right
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn it_works() {
        let result = add(2, 2);
        assert_eq!(result, 4);
    }
}