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Contents
//! # Chapter 8: Debugging
//!
//! When things inevitably go wrong, you can introspect the parsing state by running your test case
//! with `--features winnow/debug`:
//!
//! 
//!
//! You can extend your own parsers to show up by wrapping their body with
//! [`trace`][crate::combinator::trace]. Going back to [`do_nothing_parser`][super::chapter_1].
//! ```rust
//! # use winnow::PResult;
//! # use winnow::Parser;
//! use winnow::combinator::trace;
//!
//! pub fn do_nothing_parser<'s>(input: &mut &'s str) -> PResult<&'s str> {
//! trace(
//! "do_nothing_parser",
//! |i: &mut _| Ok("")
//! ).parse_next(input)
//! }
//! #
//! # fn main() {
//! # let mut input = "0x1a2b Hello";
//! #
//! # let output = do_nothing_parser.parse_next(&mut input).unwrap();
//! # // Same as:
//! # // let output = do_nothing_parser(&mut input).unwrap();
//! #
//! # assert_eq!(input, "0x1a2b Hello");
//! # assert_eq!(output, "");
//! # }
//! ```
pub use super::chapter_7 as previous;
pub use crate::_tutorial as table_of_contents;
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8 entries across 8 versions & 1 rubygems