docopt.net is a .NET implementation of docopt
docopt.net is a parser for command-line arguments. It automatically derives the parsing logic from the help text of a program containing its command-line usage in docopt format. docopt is the formalization of conventions that have been used for decades in help messages and man pages for describing a program's interface. Below is an example of such a help text containing the usage for a hypothetical program called Naval Fate:
Naval Fate.
Usage:
naval_fate.exe ship new <name>...
naval_fate.exe ship <name> move <x> <y> [--speed=<kn>]
naval_fate.exe ship shoot <x> <y>
naval_fate.exe mine (set|remove) <x> <y> [--moored | --drifting]
naval_fate.exe (-h | --help)
naval_fate.exe --version
Options:
-h --help Show this screen.
--version Show version.
--speed=<kn> Speed in knots [default: 10].
--moored Moored (anchored) mine.
--drifting Drifting mine.
The following C# example shows one basic way to use docopt.net:
#nullable enable
using System;
using DocoptNet;
const string usage = @"Naval Fate.
Usage:
naval_fate.exe ship new <name>...
naval_fate.exe ship <name> move <x> <y> [--speed=<kn>]
naval_fate.exe ship shoot <x> <y>
naval_fate.exe mine (set|remove) <x> <y> [--moored | --drifting]
naval_fate.exe (-h | --help)
naval_fate.exe --version
Options:
-h --help Show this screen.
--version Show version.
--speed=<kn> Speed in knots [default: 10].
--moored Moored (anchored) mine.
--drifting Drifting mine.
";
var arguments = new Docopt().Apply(usage, args, version: "Naval Fate 2.0", exit: true)!;
foreach (var (key, value) in arguments)
Console.WriteLine("{0} = {1}", key, value);See the documentation for more examples and uses of the docopt.net API.
The documentation can be found online at https://docopt.github.io/docopt.net/.
Install the package in a .NET project using:
dotnet add package docopt.net
- © 2012-2014 Vladimir Keleshev vladimir@keleshev.com
- © 2013 Dinh Doan Van Bien dinh@doanvanbien.com
- © 2021 Atif Aziz
- Portions © .NET Foundation and Contributors
- Portions © West Wind Technologies, 2008
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