hedl

The main HEDL library crate providing a unified API for working with the Hierarchical Entity Data Language.

Installation

[dependencies]
hedl = "1.0"

# With optional format support
hedl = { version = "1.0", features = ["yaml", "xml", "csv"] }

Features

• yaml - YAML format support
• xml - XML format support
• csv - CSV format support
• parquet - Apache Parquet support
• neo4j - Neo4j Cypher generation
• toon - TOON format for LLMs
• serde - Serde serialization support
• all-formats - Enable all format converters

Usage

use hedl::{parse, to_json, from_json};

// Parse HEDL
let hedl = r#"
%VERSION: 1.0
---
name: Example
value: 42
"#;

let doc = parse(hedl.as_bytes())?;

// Convert to JSON
let json = to_json(&doc)?;
println!("{}", json);

// Parse from JSON
let doc2 = from_json(&json)?;

Crate Structure

This crate re-exports functionality from:

• hedl-core - Core parsing and data model
• hedl-c14n - Canonicalization
• hedl-json - JSON conversion
• hedl-lint - Linting and validation

Optional re-exports (feature-gated):

• hedl-yaml, hedl-xml, hedl-csv, hedl-parquet, hedl-neo4j, hedl-toon

License

Apache-2.0