use std::str::FromStr;

grammar;

pub Atom: f64 = {
    <n:Int> => n as f64,
    Float,
    "(" <Atom> ")",
};

pub Int: i64 = <s:r"[0-9]|[1-9][0-9]*"> => i64::from_str(s).unwrap();
pub Float: f64 = <s:r"[+-]?([0-9]*[.][0-9]+|[0-9]*([.][0-9]+)?[Ee][+-]?[1-9][0-9]*)"> => f64::from_str(s).unwrap();
pub StringLiteral: &'input str = <s:"\"[^\"]\""> => s;