Derive Macro FromSection

#[derive(FromSection)]

Derives the Section trait for a struct.

This macro generates an implementation of the Section trait for a struct, enabling automatic parsing of its fields from a BTreeMap<String, String>, which represents a section from a configuration file.

Each field in the struct must implement FromStr, as the macro will attempt to parse the corresponding string value for each field in the section map.

Example

#[derive(FromSection)]
struct ServerConfig {
    host: String,
    port: u16,
}

let config = Config::load("config.ini")?;
let server_section = config.section("Server").unwrap();
let server_config = ServerConfig::from_section(server_section)?;
println!("{:?}", server_config);

In this example, the ServerConfig struct will automatically be populated from the [Server] section of the config.ini file, with values for host and port.