pub use option_ext::UncheckedOptionExt;
use std::fmt::Display;
use sexp::{Sexp, Atom};
use std::str::FromStr;

mod option_ext;

/// Convert a string token to Sexp
#[allow(non_snake_case)]
pub fn A(s: impl Display) -> Sexp {
    let s = s.to_string();

    let x: Result<i64, _> = FromStr::from_str(&s);
    if let Ok(x) = x {
        return Sexp::Atom(Atom::I(x), Default::default());
    }

    let y: Result<f64, _> = FromStr::from_str(&s);
    if let Ok(y) = y {
        return Sexp::Atom(Atom::F(y), Default::default());
    }

    Sexp::Atom(Atom::S(s), Default::default())
}