This repository contains examples to help on understanding what are and how to write PPXs in OCaml.

[@@ deriving] plugin to generate Cmdliner sub-command groups, and ppx rewriter to generate Cmdliner evaluations.

[@@ deriving] plugin to generate make functions.

ppxlib simple example, minimal boilerplate to write a ppx. Using esy and alcotest for testing.

View patterns in OCaml

Ppxlib based rewriter inspired by Python string `format()`.

OCaml dune linting demos

Write stream parser in OCaml using ppx extensions

Easily define PPX derivers without boilerplate and runtime overhead

demonstration of the extension literals and constant rewriting features

[@@deriving hash]

A syntax extension that denotes unreachable code and prints descriptive errors when the code is reached

Tool to view ppx-expanded OCaml source files - updated fork from Kiran Gopinathan's original

An OCaml ppxlib extension for matching variables as their literal value.

Ocaml PPX for no-exception error handling