Crate hedl_wasm 

HEDL WebAssembly Bindings

This crate provides WebAssembly bindings for HEDL, enabling HEDL parsing and manipulation in browsers and other JavaScript/TypeScript environments.

Usage (JavaScript/TypeScript)

import init, { parse, toJson, fromJson, format, validate, getStats } from 'hedl-wasm';

await init();

// Parse HEDL
const doc = parse(`
%VERSION 1.0
%STRUCT User[id, name, email]
---
users:@User
 | alice | Alice Smith | alice@example.com |
 | bob   | Bob Jones   | bob@example.com   |
`);

// Convert to JSON
const json = toJson(doc);

// Convert JSON to HEDL
const hedl = fromJson(jsonData);

// Format HEDL
const formatted = format(hedlString);

// Validate HEDL
const result = validate(hedlString);
if (!result.valid) {
    console.error(result.errors);
}

// Get token statistics
const stats = getStats(hedlString);
console.log(`Token savings: ${stats.savingsPercent}%`);

Structs

HedlDocument

Parsed HEDL document wrapper.

Constants

DEFAULT_MAX_INPUT_SIZE

Default maximum input size: 500 MB This is a conservative default that balances memory safety with practical use cases. Can be customized using setMaxInputSize() for larger documents.

Functions

compare_tokens

Compare HEDL and JSON token counts in real-time.

format

Format HEDL to canonical form.

from_csv

Convert CSV string to HEDL.

from_json

Convert JSON string to HEDL.

from_toon

Convert TOON string to HEDL.

from_xml

Convert XML string to HEDL.

from_yaml

Convert YAML string to HEDL.

get_max_input_size

Get the current maximum input size in bytes.

get_stats

Get token usage statistics.

init

Initialize panic hook for error handling.

parse

Parse a HEDL string and return a document.

set_max_input_size

Set the maximum input size in bytes.

to_csv

Convert HEDL string to CSV.

to_json

Convert HEDL string to JSON.

to_toon

Convert HEDL string to TOON.

to_xml

Convert HEDL string to XML.

to_yaml

Convert HEDL string to YAML.

validate

Validate HEDL and return detailed diagnostics.

version

HEDL version constant.