serde_toon 0.2.0

# serde_toon

A Serde-compatible [TOON](https://github.com/johannschopplich/toon) serialization library for Rust.

[![Crates.io](https://img.shields.io/crates/v/serde_toon.svg)](https://crates.io/crates/serde_toon) [![Documentation](https://docs.rs/serde_toon/badge.svg)](https://docs.rs/serde_toon) [![License](https://img.shields.io/crates/l/serde_toon.svg)](LICENSE-MIT)

## What is TOON?

TOON (Token-Oriented Object Notation) is a compact serialization format optimized for LLMs, using **30-60% fewer tokens than JSON**.

**Example - Same data, different sizes:**
```rust
// JSON: 171 characters
[
  {
    "id": 1,
    "name": "Alice",
    "email": "alice@example.com",
    "active": true
  },
  {
    "id": 2,
    "name": "Bob",
    "email": "bob@example.com",
    "active": true
  }
]

// TOON: 86 characters (50% reduction)
[2]{active,email,id,name}:
  true,alice@example.com,1,Alice
  true,bob@example.com,2,Bob
```

*See [`examples/token_efficiency.rs`](examples/token_efficiency.rs).*

## Quick Start

```toml
[dependencies]
serde = { version = "1.0", features = ["derive"] }
serde_toon = "0.2"
```

```rust
use serde::{Deserialize, Serialize};
use serde_toon::{to_string, from_str};

#[derive(Serialize, Deserialize)]
struct User {
    id: u32,
    name: String,
}

let user = User { id: 123, name: "Alice".into() };
let toon = to_string(&user)?; // Serialize to TOON
let back: User = from_str(&toon)?; // Deserialize from TOON
```

## Dynamic Values

```rust
use serde_toon::{toon, to_string};

let data = toon!({
    "users": [
        {"id": 1, "name": "Alice"},
        {"id": 2, "name": "Bob"}
    ],
    "active": true
}); // toon! macro -> serde_toon::Value

let serialized = to_string(&data)?;
```

*See [`examples/dynamic_values.rs`](examples/dynamic_values.rs), [`examples/macro.rs`](examples/macro.rs).*

## Features

- Full Serde integration
- Zero-copy deserialization
- Configurable output
- Rich error messages
- No unsafe code

## Documentation

See https://docs.rs/serde_toon

## License

MIT OR Apache-2.0