Woof.CommandLine 5.2.1

Woof.CommandLine

.NET extension created by CodeDog

Distributed under MIT License. (c)2021 by CodeDog, All rights reserved.

About

Advanced command line parser using POSIX, PowerShell and DOS command line arguments formatting guidelines. Automatically generates console documentation from options and assembly metadata.

It replaces all previous versions of the package and it's completely incompatible with them. Please analyse the test project sources carefuly to understand how it works. The current module is much more advanced, modern and complete.

Key features

The command line module is accessible application wide via static class CommandLine. There's no need to pass the module as service via DI. It is because command line arguments are given once, on the application start and will not change.

If for some reasons parsing of various separate command lines is needed, the CommandLineParser instance can be used for that.

The command line arguments are divided into options and parameters. The option is an argument that starts with a prefix defined for specified syntax. The option can have a value either defined in the next parametr, or in the same parameter after setter separator (default ':' or '='). The options in POSIX syntax can be also grouped, so "-abc" is equivalent to "-a -b -c", and "-ab=1" is equivalent to "-a -b 1".

The options recognized by parser are defined with configured enumerations. Each configured option should be decorated with Option attribute. The attribute defines the option aliases (names recognized), value placeholder text and the optional description. The option attribute can also have Required property used for validation.

The option enumerations are mapped to the parser with the Map<TEnum>() method. Multiple enumerations can be mapped to the same parser.

Validation of the arguments given against the options enumeration can produce detailed error messages. To get separate validation error messages get the ValidationErrors property of CommandLineParser instance. To get validation errors from the default instance as a single block of text use ValidationErrors property of the CommandLine static class.

Defined optons can be also mapped to delegates, and the delegates will be run when matched with RunDelegates() or RunDelegatesAsync() method. The delegates can be either synchronous or asynchronous and can accept the option value if applicable. The delegates can accept string, int and double types. The values will be parsed using InvariantCulture.

The CommandLine class also provide automatic documentation created from options enumeration and assembly metadata. The full automatic documentation is available in CommandLine.Help property.

Usage

For basic and advanced usage examples check the test modules sources included in the GitHub project. Also refer to the XML documentation.

Compatibility

The package is compatible with .NET Standard 2.1 and .NET 5.0 or newer. Console applications using the module can run both on Windows and Linux. The package uses some .NET 5.0 features so it will work better with it.

Disclaimer

Please report any issues to the toolkit developer.

Woof Toolkit is a work in progress in constant development, however it's carefully maintained with production code quality.