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//! In this example we build an [S-expression](https://en.wikipedia.org/wiki/S-expression)
//! parser and tiny [lisp](https://en.wikipedia.org/wiki/Lisp_(programming_language)) interpreter.
//! Lisp is a simple type of language made up of Atoms and Lists, forming easily parsable trees.
#![cfg(feature = "alloc")]
mod parser;
fn main() {
let expression_1 = "((if (= (+ 3 (/ 9 3))
(* 2 3))
*
/)
456 123)";
println!(
"\"{}\"\nevaled gives us: {:?}",
expression_1,
parser::eval_from_str(expression_1)
);
}
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