---
name: "Pegex::Tutorial"
section: "3pm"
platform: "linux"
package: "perl-pegex"
version: "0.75-8"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Pegex::Tutorial"
---

# Pegex::Tutorial(3pm)

## Pegex Tutorials

Pegex has a growing number of tutorials on how to do various parsing tasks.

This document is just an index to the current tutorials.

- Pegex::Tutorial::JSON

  This is a very in-depth tutorial of the creation of the module Pegex::JSON (a JSON decoder that uses Pegex) and the thought that went into creating it. It covers almost all of the Pegex::Syntax as well.

- Pegex::Tutorial::Calculator

  Pegex comes with an `"eg/"` directory. One example is "eg/calculator/calculator1.pl" in Pegex. It's a simple precedence parser (and evaluator) for arithmetic expressions like this one:

  ```
      1 * (2 + 3) / (4 ^ 5 ^ 6 - -7)
  ```

## See Also

- Pegex::API

  API documentation.

- Pegex::Syntax

  A detailed description of the Pegex grammar language syntax.

- Pegex::Resources

  A list of all things Pegex.