wena 0.2.0

Wena is a micro-framework that provides an elegant starting point for your console application.
Documentation 
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use clap::ErrorKind;

use crate::commands::Command;
use crate::components::Alert;
use crate::input::Input;
use crate::output::Output;

pub struct InvalidCommandFactory {
    // ..
}

impl InvalidCommandFactory {
    pub fn make<TInput: Input, TOutput: Output>() -> Command<TInput, TOutput> {
        Command::new("invalid")
            .io::<TInput, TOutput>()
            .description("Displays an invalid command")
            .handler(|app| {
                match app.input.matches() {
                    | Ok(_) => {
                        // ..
                    }

                    | Err(error) => match error.kind() {
                        | ErrorKind::DisplayHelp => {
                            panic!("The `--help` argument is not implemented.");
                        }

                        | _ => {
                            app.output.writeln(Alert::error(
                                error.kind().to_string().as_str(),
                            ));
                        }
                    },
                }

                Ok(1)
            })
    }
}