docopt.rs
A Rust command line argument parser that uses a documentation string to define the interface.
What is docopt.rs?
docopt.rs is a command-line argument parser for Rust that implements the Docopt language. It allows developers to define their command-line interface by writing a usage pattern in their program's documentation, which is then automatically parsed to handle arguments. This approach ensures the help text and argument parsing logic are always consistent.
Rust developers building command-line applications who want a declarative, documentation-driven approach to argument parsing, especially those familiar with or preferring the Docopt pattern from other languages.
Developers choose docopt.rs for its unique documentation-first design, which reduces duplication and keeps help text accurate. Its automatic type decoding via Serde provides convenience and type safety, while still offering a traditional lower-level API for manual control.
Overview
Docopt for Rust (command line argument parser).
Use Cases
Best For
- Parsing complex CLI interfaces with subcommands and options
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