1. 1. Introduction
2. 1. 1.1. Example: CSV
3. 2. Parser API
4. 1. 2.1. Example: INI
5. 3. Grammars
6. 1. 3.1. Parsing expression grammars
   2. 3.2. Syntax of pest parsers
   3. 3.3. Comments
   4. 3.4. Built-in rules
   5. 3.5. Example: JSON
   6. 3.6. Example: The J language
7. 4. Operator precedence
8. 1. 4.1. Example: Calculator
9. 5. Final project: Awk clone (WIP)