parsy 0.2.1

An easy-to-use, efficient parser combinators library
Documentation 
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use crate::{parser::Parser, parsers::*};

#[test]
pub fn complex_test() {
    let parser = just("Hello")
        .repeated()
        .at_least(1)
        .at_most(1)
        .then(just(" "))
        .then(choice((just("world"), just("World"))))
        .followed_by(just("!"))
        .then(just("!"))
        .then(end())
        .spanned()
        .full();

    let input = "Hello world!";

    let parsed = parser.parse_str(input).unwrap();

    assert_eq!(parsed.data.at.start.offset(), 0);
    assert_eq!(parsed.data.at.len, input.len());
}

#[test]
pub fn recursive_test() {
    let parser_1212 =
        recursive(|number| just("1").then(just("2")).then(number.or_not().map(|_| ()))).full();

    parser_1212.parse_str("12").unwrap();

    parser_1212.parse_str("1212").unwrap();

    parser_1212.parse_str("121212").unwrap();

    parser_1212.parse_str("12121212").unwrap();

    parser_1212.parse_str("1").err().unwrap();
}

#[test]
pub fn late_test() {
    let a = late();

    let ba = a.clone().then(char('b')).then(a.clone());

    a.finish(char('a'));

    ba.parse_str("aba").unwrap();
}

// fn simple_debug<T>(debug: DebugType<'_, '_, T>) {
//     match debug {
//         DebugType::Input(input) => println!("{input:#?}"),
//         DebugType::Result(result) => match result {
//             Ok(ok) => println!("{:#?}", ok.at),
//             Err(err) => println!("{err:#?}"),
//         },
//     }
// }