Macro general_defaults

macro_rules! general_defaults {
    ($($key:expr => $value:expr),* $(,)?) => { ... };
}

Generate a Config object with default values in a section entitled “DEFAULT”.
Variables are supported in key and value fields, but must be strings.

Syntax

let logging = "logging";    // Variables are supported across all fields.
let use_logging = "true";   // Value must be a string!
let mut config: Config = general_defaults! {
   "console" => "true",
   logging => use_logging,
};