A function to pretty serialize a serde-serializable value to toml.
Can serialize structs to toml in a single block (unlike the toml crate, which is great for deserialization but not so great for pretty serialization)
Nested array fields more than 2 arrays deep are not supported.
Note. All items in arrays are on a new line and indented. toml_pretty::to_string uses \t by default as tab.
An alternal tab symbol can be used (eg. 2 spaces) using the Options (shown in example).
Given serializable structs:
#[derive(Serialize)]
struct User {
name: String,
nicknames: Vec<String>,
birthday: Birthday,
more: Vec<Birthday>,
}
#[derive(Serialize)]
struct Birthday {
day: u8,
month: u8,
year: u16,
}
Can use toml_pretty::to_string:
let user = User {
name: String::from("Jonathan"),
nicknames: vec![String::from("Jack"), String::from("Jon")],
birthday: Birthday {
day: 0,
month: 0,
year: 1980,
},
more: vec![
Birthday {
day: 0,
month: 0,
year: 1980,
},
Birthday {
day: 0,
month: 0,
year: 1980,
},
],
};
println!(
"{}",
toml_pretty::to_string(&user, toml_pretty::Options::default().tab(" "))
.context("failed to serialize user pretty")
.unwrap()
);