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

Provides a single function to report the current time in nanoseconds since the start of the Unix epoch.

This package backports some of the new stdlib features to older compilers, such as the Stdlib module. This allows projects that require compatibility with older compiler to use these new features in their code.

This package provides types and operations over dates and times.

This library provides minimal support for Canonical S-expressions. Canonical S-expressions are a binary encoding of S-expressions that is super simple and well suited for communication between programs.

This library only provides a few helpers for simple applications. If you need more advanced support, such as parsing from more fancy input sources, you should consider copying the code of this library given how simple parsing S-expressions in canonical form is.

To avoid a dependency on a particular S-expression library, the only module of this library is parameterised by the type of S-expressions.

This package provides a GLR parser generator for OCaml. It is able to generate self-extensible parsers (also called adaptive parsers) as well as extensible lexers for the parsers it produces.

Pcre-ocaml offers library functions for string pattern matching and substitution, similar to the functionality offered by the Perl language.

IO pages are page-aligned, and wrapped in the Cstruct library to avoid copying the data contained within the page.

Eio_main selects an appropriate backend (e.g. eio_linux or eio_luv), depending on your platform.

Lwt provides typed, composable cooperative threads. These make it easy to run normally-blocking I/O operations concurrently in a single process. Also, in many cases, Lwt threads can interact without the need for locks or other synchronization primitives.

The Core suite of libraries is an alternative to OCaml's standard library.

Fpath is an OCaml module for handling file system paths with POSIX or Windows conventions. Fpath processes paths without accessing the file system and is independent from any system library.

This package allows one to access information about how the executable was built, such as the version of the project at which it was built or the list of statically linked libraries with their versions. It supports reporting the version from the version control system during development to get an precise reference of when the executable was built.

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.

Hmap provides heterogeneous value maps for OCaml. These maps bind keys to values with arbitrary types. Keys witness the type of the value they are bound to which allows adding and looking up bindings in a type safe manner.

TyXML provides a set of convenient combinators that uses the OCaml type system to ensure the validity of the generated documents. TyXML can be used with any representation of HTML and SVG: the textual one, provided directly by this package, or DOM trees (js_of_ocaml-tyxml) virtual DOM (virtual-dom) and reactive or replicated trees (eliom). You can also create your own representation and use it to instantiate a new set of combinators.

Luv is a binding to libuv, the cross-platform C library that does asynchronous I/O in Node.js and runs its main loop. Besides asynchronous I/O, libuv also supports multiprocessing and multithreading. Multiple event loops can be run in different threads. libuv also exposes a lot of other functionality, amounting to a full OS API, and an alternative to the standard module Unix.

Eio_linux provides a Linux io-uring backend for Ocaml Eio APIs, plus a low-level API that can be used directly (in non-portable code).

This package is a collection of ppx rewriters that generate hash functions from type exrpessions and definitions.

This package is an OCaml library to parse and generate the YAML file format. It is intended to be interoperable with the Ezjsonm JSON handling library, if the simple common subset of Yaml is used. Anchors and other advanced Yaml features are not implemented in the JSON compatibility layer.

Library to provide pure OCaml functions to manipulate real file (POSIX like) and filename.

C header files shared between the various Jane Street packages.

Lexer generator for Unicode and OCaml.

ppx_bap is the set of blessed ppx rewriters used in BAP projects. It fills the same role as ppx_base or ppx_jane (from which it is derived), but doesn't impose any style requirements and has only the minimal necessary set of rewriters.