mirror of
https://github.com/nushell/nushell.git
synced 2024-11-28 19:33:47 +01:00
c5aa15c7f6
# Description Add `README.md` files to each crate in our workspace (-plugins) and also include it in the `lib.rs` documentation for <docs.rs> (if there is no existing `lib.rs` crate documentation) In all new README I added the defensive comment that the crates are not considered stable for public consumption. If necessary we can adjust this if we deem a crate useful for plugin authors.
80 lines
2.0 KiB
Markdown
80 lines
2.0 KiB
Markdown
# nu-json
|
|
|
|
[](https://crates.io/crates/nu-json)
|
|
|
|
> a fork of [serde_hjson](https://crates.io/crates/serde-hjson).
|
|
|
|
> The changes made to this crate are kept in [CHANGELOG](/crates/nu-json/CHANGELOG.md).
|
|
|
|
|
|
The Rust implementation of Hjson is based on the [Serde JSON Serialization Library](https://github.com/serde-rs/json).
|
|
|
|
This crate is a Rust library for parsing and generating Human JSON [Hjson](https://hjson.github.io). It is built upon [Serde](https://github.com/serde-rs/serde), a high performance generic serialization framework.
|
|
|
|
# Install
|
|
|
|
This crate works with Cargo and can be found on [crates.io](https://crates.io/crates/nu-json) with a `Cargo.toml` like:
|
|
|
|
```toml
|
|
[dependencies]
|
|
serde = "1"
|
|
nu-json = "0.76"
|
|
```
|
|
|
|
## From the Commandline
|
|
|
|
Add with:
|
|
```sh
|
|
cargo add serde
|
|
cargo add nu-json
|
|
```
|
|
|
|
# Usage
|
|
|
|
```rust
|
|
extern crate serde;
|
|
extern crate nu_json;
|
|
|
|
use nu_json::{Map,Value};
|
|
|
|
fn main() {
|
|
|
|
// Now let's look at decoding Hjson data
|
|
|
|
let sample_text=r#"
|
|
{
|
|
## specify rate in requests/second
|
|
rate: 1000
|
|
array:
|
|
[
|
|
foo
|
|
bar
|
|
]
|
|
}"#;
|
|
|
|
// Decode and unwrap.
|
|
let mut sample: Map<String, Value> = nu_json::from_str(&sample_text).unwrap();
|
|
|
|
// scope to control lifetime of borrow
|
|
{
|
|
// Extract the rate
|
|
let rate = sample.get("rate").unwrap().as_f64().unwrap();
|
|
println!("rate: {}", rate);
|
|
|
|
// Extract the array
|
|
let array : &mut Vec<Value> = sample.get_mut("array").unwrap().as_array_mut().unwrap();
|
|
println!("first: {}", array.first().unwrap());
|
|
|
|
// Add a value
|
|
array.push(Value::String("baz".to_string()));
|
|
}
|
|
|
|
// Encode to Hjson
|
|
let sample2 = nu_json::to_string(&sample).unwrap();
|
|
println!("Hjson:\n{}", sample2);
|
|
}
|
|
```
|
|
# DOCS
|
|
|
|
At the moment, the documentation on [serde_hjson](https://docs.rs/serde-hjson/0.9.1/serde_hjson/) / [serde_json](https://docs.rs/serde_json/1.0.93/serde_json/) is also relevant for nu-json.
|