Macro macro_get_args

macro_rules! macro_get_args {
    ($matches:ident, $name:expr) => { ... };
}

macro_get_args Macro

Retrieve a named argument from a clap::ArgMatches object.

Arguments

• $matches - A clap::ArgMatches object representing the parsed command-line arguments.
• $name - A string literal specifying the name of the argument to retrieve.

Behaviour

The macro_get_args macro retrieves the value of the named argument $name from the $matches object. If the argument is found and its value can be converted to String, the macro returns the value as a Result<String, String>. If the argument is not found or its value cannot be converted to String, an Err variant is returned with an error message indicating the omission of the required parameter.

The error message includes the name of the omitted parameter ($name) to assist with troubleshooting and providing meaningful feedback to users.

Notes

• This macro assumes the availability of the clap crate and the presence of a valid ArgMatches object.
• Make sure to adjust the code example by providing a valid ArgMatches object and replacing "arg_name" with the actual name of the argument you want to retrieve.