This package provides PCRE-based regular expressions support for Mparser.

This package provides string type based on [Bigarray], for use in I/O and C-bindings.

Bisect_ppx helps you test thoroughly. It is a small preprocessor that inserts instrumentation at places in your code, such as if-then-else and match expressions. After you run tests, Bisect_ppx gives a nice HTML report showing which places were visited and which were missed.

Usage is simple - add package bisect_ppx when building tests, run your tests, then run the Bisect_ppx report tool on the generated visitation files.

This package provides an effect-based IO API for multicore OCaml with fibers.

This package is a ppx extension for easier implementation of conversion functions between almost identical types.

The ocaml-integers library provides a number of 8-, 16-, 32- and 64-bit signed and unsigned integer types, together with aliases such as long and size_t whose sizes depend on the host platform.

Unison is a file-synchronization tool. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other.

This library implements the standard functions used by Dune.

Fmt exposes combinators to devise Format pretty-printing functions.

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 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.

Defines the signature for time-related operations for MirageOS.

This module implements strict impure trie tree data structure for OCaml.

CUDF is a format for describing upgrade scenarios in package-based software distributions.

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

Library for asynchronous programming, i.e., programming where some part of the program must wait for things that happen at times determined by some external entity (like a human or another program).

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.

QuickCheck inspired property-based testing for OCaml. This module checks invariants (properties of some types) over randomly generated instances of the type. It provides combinators for generating instances and printing them.

Merlin is an editor service that provides modern IDE features for OCaml. Emacs and Vim support is provided out-of-the-box. External contributors added support for Visual Studio Code, Sublime Text and Atom.

The OCaml compiler has a bunch of intrinsics for Bigstrings, but they're not widely-known, sometimes misused, and so programs that use Bigstrings are slower than they have to be. And even if a library got that part right and exposed the intrinsics properly, the compiler doesn't have any fast blits between Bigstrings and other string-like types. bigstringaf provides these missing pieces.

These libraries provides access to low-level compiler interfaces and the standard higher-level merlin protocol.

This package generates S-expression conversion functions from type definitions.

This package contains a syntax extension for writing in-line tests in ocaml code. It is part of Jane Street's PPX rewriters collection.

Access monotonic wall-clock time. It measures time spans without being subject to operating system calendar time adjustments.