Chonk 0.4

A lightweight parser combinator framework.

Usage

Use the test method to see if your input matches a parser:

```rust use chonk::prelude::*;

fn parser<'a>() -> impl Parser<'a, &'a str, ()> { move |ctx| { take(1.., is(alphabetic)).parse(ctx) } }

if parser().test("abcd") { println!("One or more alphabetic characters found!"); } ```

Use the parse method to extract information from your input:

rust assert_eq!(parser().parse("foobar"), Ok(( ParserContext { input: "foobar", bounds: 0..6, }, "foobar" )))

Write your own parser functions with custom result types:

```rust use chonk::prelude::*;

[derive(Debug, PartialEq)]

enum Token<'a> { Identifier(&'a str), }

[derive(Debug, PartialEq)]

enum Message { ExpectedIdentifier }

fn identifier<'a>() -> impl Parser<'a, Token<'a>, Message> { move |ctx| { take(1.., is(alphabetic)).parse(ctx) .mapresult(|token| Token::Identifier(token)) .maperror(|error| error.with_message(Message::ExpectedIdentifier)) } }

assert_eq!(identifier().parse("foobar"), Ok(( ParserContext { input: "foobar", bounds: 0..6, }, Token::Identifier("foobar") ))); ```

For more information, look in the [examples directory] in the [git repository].