#lisp #iterator #lexer #parser #no-std

no-std lisp_iter

Single-pass no-alloc iterator for simple lisp or lisp-like expressions

1 unstable release

0.1.0 Nov 2, 2022

#2731 in Parser implementations

MIT license

9KB
163 lines

lisp_iter

Single-pass no-alloc iterator for simple lisp or lisp-like expressions.

use lisp_iter::LispIter;

fn main() {
    let mut iter = LispIter::new(r#"(this-is-a-identifier :a 123 "wow") ; :a is shorthand for "a" "#);
    let mut list = iter.next().unwrap().into_iter(); // Retrieve first list in iterator

    println!("{:?}", list.next().unwrap()); // Identifier("this-is-a-identifier")
    println!("{:?}", list.next().unwrap()); // Quote("a")
    println!("{:?}", list.next().unwrap()); // Integer(0)
    println!("{:?}", list.next().unwrap()); // Quote("wow")
}

Useful to glance over anything lispy with minimal to 0 overhead.

No runtime deps