syntree 0.1.2

A memory efficient syntax tree for language developers.
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# syntree

[<img alt="github" src="https://img.shields.io/badge/github-udoprog/syntree-8da0cb?style=for-the-badge&logo=github" height="20">](https://github.com/udoprog/syntree)
[<img alt="crates.io" src="https://img.shields.io/crates/v/syntree.svg?style=for-the-badge&color=fc8d62&logo=rust" height="20">](https://crates.io/crates/syntree)
[<img alt="docs.rs" src="https://img.shields.io/badge/docs.rs-syntree-66c2a5?style=for-the-badge&logoColor=white&logo=data:image/svg+xml;base64,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" height="20">](https://docs.rs/syntree)
[<img alt="build status" src="https://img.shields.io/github/workflow/status/udoprog/syntree/CI/main?style=for-the-badge" height="20">](https://github.com/udoprog/syntree/actions?query=branch%3Amain)

A memory efficient syntax tree.

```rust
use syntree::{Span, TreeBuilder};

#[derive(Debug, Clone, Copy)]
enum Syntax {
    Root,
    Operation,
    Number,
    Plus,
}

let mut b = TreeBuilder::new();

b.start_node(Syntax::Root);
b.start_node(Syntax::Operation);

b.start_node(Syntax::Number);
b.token(Syntax::Number, Span::new(0, 4));
b.end_node()?;

b.start_node(Syntax::Plus);
b.token(Syntax::Plus, Span::new(4, 5));
b.end_node()?;

b.start_node(Syntax::Number);
b.token(Syntax::Number, Span::new(5, 10));
b.end_node()?;

b.end_node()?;
b.end_node()?;

let tree = b.build()?;

assert_eq!(tree.span(), Some(Span::new(0, 10)));
```

License: MIT/Apache-2.0