D4t4

WIP - work in progress, use at your own risk

A JSON superset

Features

• JSON-compatible
• Objects & arrays may have trailing comma
• Object keys may not need quotes
• Single & multiline comments are allowed
• Strings may use double and/or single quotes
• Values can be referenced from other parts of the object tree

Example

    use d4t4::parse;

    fn main() {
        let data = r#"{
            /*
                Look how nice, we can separate re-useable data!
            */
            padding: {
                s: '1px',
                m: '2px',
                l: '3px', /* note: triling comma */
            },
            color: {
                red: '#fed7d7',
                green: '#c6f6d5',
                blue: '#bee3f8',
            },
            objects: [
                {
                    border: "1px solid &{color.red}",
                    padding: "&{padding.s}",
                },
                {
                    border: "1px solid &{color.green}",
                    padding: "&{padding.m}",
                },
                {
                    border: "1px solid &{color.blue}",
                    padding: "&{padding.l}",
                },
            ]
        }"#;

        let json = parse(data).ok().unwrap();
        assert_eq!(json["objects"][0]["padding"], "1px");
    }

Contributions

I would love to get some feedback if you find my little project useful. Please feel free to highlight issues with my code or submit a PR in case you want to improve it.