smack::cli contains support for implementing command line applications.

Overview

The concept is to map a command line to an operation implemented in C++, hiding and simplifying as much as possible the needed implementation details from the coder. This includes:

• Subcommands are supported and mapped to operations, either to free functions or to instance operations of an object.
• Parameter type conversion is performed automatically and results in an understandable error message if an error occurs.
• The C++ primitive types are mapped out-of-the-box, custom type conversions can be easily added.
• Error handling is based on C++ exceptions and results in end-user compatible messages.
• A command help page is automatically printed if a command is called without a parameter or with a single --helpas a parameter.

Technical

smack::cli's basic concept is to make functions implemented in C++ callable from the command line as commands with minimial efforts for the coder. That is, parameter conversion is handled automatically and a nice help page is printed if the cli is executed without any arguments.

Example

See the source code example