Libraries for creating shared memory producer/consumer rings. The rings follow the Xen ABI and may be used to create or implement Xen virtual devices.

An implementation inspired by Okasaki & Gill's paper 'Fast Mergeable Integer Maps.'

Xml-Light provides functions to parse an XML document into an OCaml data structure, work with it, and print it back to an XML document. It also supports DTD parsing and checking, and is entirely written in OCaml, hence it does not require additional C libraries.

Syntax extension for writing in-line benchmarks in ocaml code.

Down is an unintrusive user experience upgrade for the ocaml toplevel (REPL).

Simply load the zero dependency down library in the ocaml toplevel and you get line edition, history, session support and identifier completion and documentation with ocp-index.

Add this to your ~/.ocamlinit:

#use "down.top"

You may also need to add this to your ~/.ocamlinit and declare the environment variable OCAML_TOPLEVEL_PATH:

let () =
  try Topdirs.dir_directory (Sys.getenv "OCAML_TOPLEVEL_PATH")
  with Not_found -> ()

OR

let () = String.split_on_char ':' (Sys.getenv "OCAMLPATH")
         |> List.filter (fun x -> Filename.check_suffix x "/site-lib")
         |> List.map (fun x -> x ^ "/toplevel")
         (* remove the line below if you don't want to see the text
            every time you start the toplevel *)
         |> List.map (fun x -> Printf.printf "adding directory %s\n" x; x)
         |> List.iter Topdirs.dir_directory;;

The opam monorepo plugin provides a convenient interface to bridge the opam package manager with having a local copy of all the source code required to build a project using the dune build tool.

Expect-test is a framework for writing tests in OCaml, similar to Cram. Expect-tests mimics the existing inline tests framework with the let%expect_test construct. The body of an expect-test can contain output-generating code, interleaved with %expect extension expressions to denote the expected output.

This package is a no-op ppx rewriter. It is used as a lint tool to enforce some coding conventions across all Jane Street packages.

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.

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.

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 OCaml library provides two new integer types, Optint.t and Int63.t, which guarantee efficient representation on 64-bit architectures and provide a best-effort boxed representation on 32-bit architectures.

Tuareg helps editing OCaml code, to highlight important parts of the code, to run an OCaml REPL, and to run the OCaml debugger within Emacs.

Biniou (pronounced "be new" is a binary data format designed for speed, safety, ease of use and backward compatibility as protocols evolve. Biniou is vastly equivalent to JSON in terms of functionality but allows implementations several times faster (4 times faster than yojson), with 25-35% space savings.

Xmlm is a streaming codec to decode and encode the XML data format. It can process XML documents without a complete in-memory representation of the data.

Comma separated values (CSV) is a simple tabular format supported by all major spreadsheets. This library implements pure OCaml functions to read and write files in this format as well as some convenience functions to manipulate such data.

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.

IP address types with serialization, supporting a wide range of RFCs.

Cinaps is a trivial Metaprogramming tool using the OCaml toplevel. It is based on the same idea as expectation tests. The user writes some OCaml code inside special comments and cinaps makes sure that what follows is what is printed by the OCaml code.

This package contains a parser and a pretty-printer for the opam file format.

Yojson is an optimized parsing and printing library for the JSON format. It addresses a few shortcomings of json-wheel including 2x speedup, polymorphic variants and optional syntax for tuples and variants. ydump is a pretty printing command-line program provided with the yojson package. The program atdgen can be used to derive OCaml-JSON serializers and deserializers from type definitions.

Generate modules from OCaml source files.

Uuidm is an OCaml module implementing 128 bits universally unique identifiers (UUIDs) version 3, 5 (named based with MD5, SHA-1 hashing) and 4 (random based) according to RFC 4122.

OCamlbuild is a generic build tool, that has built-in rules for building OCaml library and programs.