Macro process_error 

macro_rules! process_error {
    ($stream:expr, $($arg:tt)+) => { ... };
}

Prints the process invocation name, an error label, and a message to a stream.

The macro evaluates to a std::io::Result<()>, just like writeln does.

NOTE: The macro requires the crate [owo-colors].

Examples

let mut stderr = meadows::io::stderr().lock();
process_error!(stderr, "Cannot start engine")?; // -> "${inv_name}: error: Cannot start engine\n"