Macro sectioned_defaults

macro_rules! sectioned_defaults {
    (
        {
            $($general_key:expr => $general_value:expr),* $(,)?
        }
        $(
        [$section:expr] {
            $($key:expr => $value:expr),* $(,)?
        }
    )*) => { ... };
    ($(
        [$section:expr] {
            $($key:expr => $value:expr),* $(,)?
        }
    )*) => { ... };
}

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

Syntax

let server_section = "Server";  // Variables are supported
let default_host = "127.0.0.1"; // across all fields.
let secure = "true";            // Value must be a string!
 
let mut config: Config = sectioned_defaults! {
// Optional general section (no section title)
// must be the first section if included
{
    "console" => "true",
}
 
// Section titles are enclosed in square brackets
[server_section] {
    "host" => default_host,
    "port" => "8080",
}

["Window"] {
    "width" => "720",
    "height" => "480",
}
};