# About
The main purpose of the library is to provide tools for analyzing TOML data where the
layout must be preserved and the original position of every parsed token must be known. It can
also format TOML documents.
It uses [Rowan](::rowan) for the syntax tree, and every character is preserved from the input,
including all comments and white space.
A [DOM](dom) can be constructed for data-oriented analysis where each node wraps a part of the
syntax tree with additional information and functionality.
# Features
- **time**: Use [time](https://github.com/time-rs/time) for TOML dates and times
- **serde**: Support for [serde](https://serde.rs) serialization of the DOM nodes.
- **schema**: Enable JSON-schema generation for formatter configuration.
# Usage
A TOML document has to be parsed with [parse](parser::parse) first, it
will build a syntax tree that can be traversed.
If there were no syntax errors during parsing, then a [`dom::Node`]
can be constructed. It will build a DOM tree and validate the TOML document according
to the specification. A DOM tree can be constructed even with syntax errors present, however
parts of it might be missing.
```
use taplo::parser::parse;
const SOURCE: &str =
"value = 1
value = 2
[table]
string = 'some string'";
let parse_result = parse(SOURCE);
// Check for syntax errors.
// These are not carried over to DOM errors.
assert!(parse_result.errors.is_empty());
let root_node = parse_result.into_dom();
// Check for semantic errors.
// In this example "value" is a duplicate key.
assert!(root_node.validate().is_err());
```