Uses the new result type defined in OCaml >= 4.03 while staying compatible with older version of OCaml should use the Result module defined in this library.

Ptime offers platform independent POSIX time support in pure OCaml. It provides a type to represent a well-defined range of POSIX timestamps with picosecond precision, conversion with date-time values, conversion with RFC 3339 timestamps and pretty printing to a human-readable, locale-independent representation.

Dune-configurator is a small library that helps writing OCaml scripts that test features available on the system, in order to generate config.h files for instance. Among other things, dune-configurator allows one to:

• test if a C program compiles

• query pkg-config

• import #define from OCaml header files

• generate config.h file

Provides a single module named Stringext that provides a grab bag of often used but missing string functions from the stdlib. E.g, split, full_split, cut, rcut, etc..

This package provides a splittable PRNG functions like a PRNG that can be used as a stream of random values; it can also be split to produce a second, independent stream of random values.

This library implements a splittable pseudo-random number generator that sacrifices cryptographic-quality randomness in favor of performance.

This library provides an alternative to the Format module of the OCaml standard library. Pp uses the same concepts of boxes and break hints, and the final rendering is done to formatter from the Format module. However it defines its own algebra which some might find easier to work with and reason about.

Piqi is a multi-format data serialization system for OCaml. It provides a uniform interface for serializing OCaml data structures to JSON, XML and Protocol Buffers formats.

Syntax extension to define first class values representing record fields, to get and set record fields, iterate and fold over all fields of a record and create new record values.

Modules using ppx_module_timer have instrumentation to record their startup time.

The graphics library provides a set of portable drawing primitives. Drawing takes place in a separate window that is created when Graphics.open_graph is called. This library used to be distributed with OCaml up to OCaml 4.08.

This package applies unified diffs in pure OCaml.

The loosely specified diff file format is widely used for transmitting differences of line-based information. The motivating example is opam, which is able to validate updates being cryptographically signed (e.g. conex) by providing a unified diff.

This library offers a lightweight way for applications protocols to version themselves. The more protocols that add themselves to Known_protocol, the nicer error messages we will get when connecting to a service while using the wrong protocol.

This library implements the standard functions used by Dune.

This package provides the core modules of Modal Editing Witch, a general modal editing engine generator.

Odoc is a documentation generator for OCaml. It reads doc comments, delimited with (** ... *), and outputs HTML.

Text inside doc comments is marked up in ocamldoc syntax. Odoc's main advantage over ocamldoc is an accurate cross-referencer, which handles the complexity of the OCaml module system.

Gen implements iterators of OCaml, that are both restartable and consumable.

Jsonm is a non-blocking streaming codec to decode and encode the JSON data format. It can process JSON text without blocking on IO and without a complete in-memory representation of the data.

The subset of textutils using only core_kernel and working in javascript.

OCaml is a general purpose industrial-strength programming language with an emphasis on expressiveness and safety. Developed for more than 20 years at Inria it benefits from one of the most advanced type systems and supports functional, imperative and object-oriented styles of programming.

Ppx_fields_conv is a ppx rewriter that can be used to define first class values representing record fields, and additional routines, to get and set record fields, iterate and fold over all fields of a record and create new record values.

OCamlFormat is a tool to automatically format OCaml code in a uniform style. This package defines a RPC interface to OCamlFormat.

Bindlib is a library allowing the manipulation of data structures with bound variables. It is particularly useful when writing ASTs for programming languages, but also for manipulating terms of the λ-calculus or quantified formulas.

OPAM is a tool to manage OCaml packages. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow.

This package implements an Ocaml language server implementation.