Creating command-line interfaces

Creating a command-line interface is not always easy. In C/C++, you need to start parsing arguments and then decide which flags are set and whether they comply with all the conditions. This is a non-issue in Rust thanks to Command-Line Argument Parser (CLAP). The CLAP crate, enables us to create very complex command-line interfaces with just a bit of code.

Not only that; it will create the help menus for us and it will also be maintainable since it will be easy to add or remove parameters and flags. It will ensure that the input we receive is valid and it will even create command-line completion scripts for the most-used shells.

You can generate the complete CLI with macros, but I personally prefer to use ...

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