Cmdliner
A declarative library for defining command line interfaces in OCaml, handling parsing, help, and man pages.
What is Cmdliner?
Cmdliner is a library for OCaml that provides a declarative way to define command line interfaces. It converts command line arguments into OCaml values and passes them to functions, automatically handling parsing, help messages, and man page generation. It solves the problem of manually managing CLI complexity in OCaml applications.
OCaml developers building command-line tools or applications that require robust, standards-compliant argument parsing and interface management.
Developers choose Cmdliner for its declarative, compositional approach that reduces boilerplate, ensures compliance with POSIX/GNU conventions, and automatically handles error reporting, help, and documentation generation without external dependencies.
Overview
Declarative definition of command line interfaces for OCaml
Use Cases
Best For
- Building OCaml command-line tools with complex argument structures
- Creating multi-command CLI applications in OCaml
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