Crate serde_hjson

Expand description

What is Hjson?

A configuration file format for humans. Relaxed syntax, fewer mistakes, more comments. See http://hjson.org

Data types that can be encoded are JavaScript types (see the serde_hjson:Value enum for more details):

Boolean: equivalent to rust’s bool
I64: equivalent to rust’s i64
U64: equivalent to rust’s u64
F64: equivalent to rust’s f64
String: equivalent to rust’s String
Array: equivalent to rust’s Vec<T>, but also allowing objects of different types in the same array
Object: equivalent to rust’s serde_hjson::Map<String, serde_hjson::Value>
Null

Examples of use

Parsing a `str` to `Value` and reading the result

//#![feature(custom_derive, plugin)]
//#![plugin(serde_macros)]

extern crate serde_hjson;

use serde_hjson::Value;

fn main() {
    let data: Value = serde_hjson::from_str("{foo: 13, bar: \"baz\"}").unwrap();
    println!("data: {:?}", data);
    println!("object? {}", data.is_object());

    let obj = data.as_object().unwrap();
    let foo = obj.get("foo").unwrap();

    println!("array? {:?}", foo.as_array());
    // array? None
    println!("u64? {:?}", foo.as_u64());
    // u64? Some(13u64)

    for (key, value) in obj.iter() {
        println!("{}: {}", key, match *value {
            Value::U64(v) => format!("{} (u64)", v),
            Value::String(ref v) => format!("{} (string)", v),
            _ => unreachable!(),
        });
    }
    // bar: baz (string)
    // foo: 13 (u64)
}