//! # Chapter 0: Introduction //! //! This tutorial assumes that you are: //! - Already familiar with Rust //! - Using `winnow` for the first time //! //! The focus will be on parsing in-memory strings (`&str`). Once done, you might want to check the //! [Special Topics][_topic] for more specialized topics or examples. //! //! ## About //! //! `winnow` is a parser-combinator library. In other words, it gives you tools to define: //! - "parsers", or functions that take an input and give back an output //! - "combinators", or functions that take parsers and _combine_ them together! //! //! While "combinator" might be an unfamiliar word, you are likely using them in your rust code //! today, like with the [`Iterator`] trait: //! ```rust //! let data = vec![1, 2, 3, 4, 5]; //! let even_count = data.iter() //! .copied() // combinator //! .filter(|d| d % 2 == 0) // combinator //! .count(); // combinator //! ``` //! //! Parser combinators are great because: //! //! - Individual parser functions are small, focused on one thing, ignoring the rest //! - You can write tests focused on individual parsers (unit tests and property-based tests) //! in addition to testing the top-level parser as a whole. //! - Top-level parsing code looks close to the grammar you would have written
#![allow(unused_imports)] usecrate::_topic; use std::iter::Iterator;
pubusesuper::chapter_1 as next; pubusecrate::_tutorial as table_of_contents;
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