A declarative CLI argument and XML configuration parser with help message generation for F# applications.
Argu is a library for F# applications that provides declarative parsing of command-line arguments and XML configuration files. It automates help message generation and simplifies the creation of user-friendly command-line interfaces by reducing boilerplate code.
F# developers building console applications, tools, or services that require robust CLI argument handling or XML configuration parsing.
Developers choose Argu for its type-safe, declarative approach that integrates seamlessly with F#'s type system, eliminating manual parsing logic and ensuring consistent help documentation.
A declarative CLI argument parser for F#
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Uses F# discriminated unions with attributes for argument definition, ensuring compile-time checks and reducing errors, as highlighted in the library's philosophy.
Automatically produces formatted help text based on argument definitions, eliminating manual documentation effort and ensuring consistency.
Handles both command-line arguments and XML configuration files with a single, consistent interface, simplifying code for multi-source configuration.
Includes validation for required arguments and custom error messages, enhancing application robustness and user experience.
Only compatible with F# projects, making it unsuitable for mixed-language or non-F# .NET applications without significant workarounds.
Primarily supports XML for configuration parsing, lacking built-in support for modern formats like JSON or YAML, which may require additional libraries.
The declarative model can be verbose for very simple argument sets, potentially overcomplicating compared to minimalist parsing solutions.