serde_json prettifier

[dtolnay]

Not an issue with json_pretty but I thought you might be interested in comparing the same thing implemented with serde_json:

extern crate serde_json;
extern crate serde_transcode;

use std::io;

fn main() {
    let s = r#"{"description": "string for test", "id" : 123, "true" : true}"#;

    // A streaming JSON deserializer.
    let mut deserializer = serde_json::Deserializer::new(s.bytes().map(Ok));

    // A streaming pretty JSON serializer that writes to stdout.
    let mut serializer = serde_json::Serializer::pretty(io::stdout());

    // Efficiently process the input string while writing it in pretty form to stdout.
    serde_transcode::transcode(&mut deserializer, &mut serializer).unwrap();
}

{
  "description": "string for test",
  "id": 123,
  "true": true
}