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//! Json String Literal Generator
//!
//! Write json with Rust syntax instead of hard to read inline strings.
//! This crate doesn't evaluate any expressions, it just converts a Rust _token tree_ into a
//! minified json string.
//!
//! # Usage
//!
//! This crate is on [crates.io](https://crates.io/crates/json_str).
//!
//! There are two ways to reference `json_str` in your projects, depending on whether you're on
//! the `stable`/`beta` or `nightly` channels.
//!
//! ## Stable
//!
//! To get started, add `json_str` to your `Cargo.toml`:
//!
//! ```ignore
//! [dependencies]
//! json_str = "*"
//! ```
//!
//! And reference it in your crate root:
//!
//! ```ignore
//! #[macro_use]
//! extern crate json_str;
//! ```
//!
//! ## Nightly
//!
//! To get started, add `json_str` to your `Cargo.toml`:
//!
//! ```ignore
//! [dependencies]
//! json_str = { version = "*", features = "nightly" }
//! ```
//!
//! And reference it in your crate root:
//!
//! ```ignore
//! #![feature(plugin)]
//! #![plugin(json_str)]
//! ```
//!
//! If you're on the `nightly` channel, it's better to use the above `plugin` version with the `nightly`
//! feature because the conversion and sanitisation takes place at compile-time instead of runtime,
//! saving precious runtime cycles.
//!
//! ## Examples
//!
//! The `json_str!` macro will take an inline token tree and return a sanitised json `String`:
//!
//! ```ignore
//! let json = json_str!({
//! "query": {
//! "filtered": {
//! "query": {
//! "match_all": {}
//! },
//! "filter": {
//! "geo_distance": {
//! "distance": "20km",
//! "location": {
//! "lat": 37.776,
//! "lon": -122.41
//! }
//! }
//! }
//! }
//! }
//! });
//! ```
//!
//! This will also work for unquoted keys for something a bit more `rusty`:
//!
//! ```ignore
//! let json = json_str!({
//! query: {
//! filtered: {
//! query: {
//! match_all: {}
//! },
//! filter: {
//! geo_distance: {
//! distance: "20km",
//! location: {
//! lat: 37.776,
//! lon: -122.41
//! }
//! }
//! }
//! }
//! }
//! });
//! ```
//!
//! On `nightly`, there's an additional plugin called `json_lit` that returns a `&'static str`
//! instead of a `String`, so you can avoid allocating each time. The syntax is otherwise the same
//! as `json_str`:
//!
//! ```ignore
//! let json = json_lit!({
//! "query": {
//! "filtered": {
//! "query": {
//! "match_all": {}
//! },
//! "filter": {
//! "geo_distance": {
//! "distance": "20km",
//! "location": {
//! "lat": 37.776,
//! "lon": -122.41
//! }
//! }
//! }
//! }
//! }
//! });
//! ```
//!
//! For json values that can't be fully determined at compile-time,
//! use [json_macros](https://github.com/tomjakubowski/json_macros) instead.
include!;