tree_sitter_language_pack 1.15.8

Pre-compiled tree-sitter grammars for 371 programming languages

Dart / Flutter

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Dart / Flutter bindings for tree-sitter-language-pack — 371 pre-compiled tree-sitter grammars. Built with flutter_rust_bridge for isolate-safe Future APIs and Flutter-native type mapping.

What This Package Provides

• Parser access — load a tree-sitter language parser by name without wiring individual grammar crates or packages.
• Code intelligence primitives — parse trees, functions, classes, imports, exports, symbols, docstrings, diagnostics, and syntax-aware chunks.
• Shared cache model — parsers are fetched and cached once, then reused by every call in the process.
• Same catalog as every binding — Rust, Python, Node.js, Go, Java, PHP, Ruby, .NET, Elixir, WASM, Dart, Kotlin Android, Swift, Zig, and C FFI use the same grammar set.
• Dart package — flutter_rust_bridge Future APIs for Dart and Flutter.

Installation

dart pub add tree_sitter_language_pack

Flutter projects use flutter pub add tree_sitter_language_pack instead.

Quick Start

import 'dart:io';
import 'package:tree_sitter_language_pack/tree_sitter_language_pack.dart';
import 'package:tree_sitter_language_pack/src/tree_sitter_language_pack_bridge_generated/frb_generated.dart' show RustLib;
Future<void> main() async {
  await RustLib.init();
  try {
    final config = await createProcessConfigFromJson(json: '{"language":"python"}');
    final result = await TreeSitterLanguagePackBridge.process('# A comment\ndef greet(name):\n    """Say hello."""\n    return f\'Hi {name}\'\n\nimport os\n', config: config);
    stdout.writeln(result.language);
    stdout.writeln(result.structure);
    stdout.writeln(result.structure[0].kind);
    stdout.writeln(result.imports);
    stdout.writeln(result.metrics.totalLines);
    stdout.writeln(result.metrics.errorCount);
  } finally {
    RustLib.dispose();
  }
}

Features

• 371 languages — pre-compiled tree-sitter grammars covering every major programming language and many minor ones.
• On-demand download + cache — parsers fetched at first use; subsequent runs hit the local cache.
• Code intelligence — extract functions, classes, imports, exports, symbols, docstrings, and diagnostics with one API.
• Syntax-aware chunking — semantic chunks for RAG/LLM pipelines.
• Polyglot bindings — native APIs across 15 languages: Rust, Python, TypeScript/Node.js, Go, Java, C#, Ruby, PHP, Elixir, WebAssembly, Dart, Kotlin, Swift, Zig, and C/C++ via alef.

Documentation

• Documentation -- Full docs and API reference
• GitHub Repository -- Source, issues, and discussions

Part of Xberg

• Xberg — document intelligence: text, tables, metadata from 101 formats with optional OCR.
• Xberg Enterprise — managed extraction API with SDKs, dashboards, and observability.
• crawlberg — web crawling and scraping with HTML→Markdown and headless-Chrome fallback.
• html-to-markdown — fast, lossless HTML→Markdown engine.
• liter-llm — universal LLM API client with native bindings for 14 languages and 165 providers.
• alef — the polyglot binding generator that produces this README and all per-language bindings.
• Discord — community, roadmap, announcements.

Contributing

Contributions are welcome! See CONTRIBUTING.md for guidelines.

Join our Discord community for questions and discussion.

License

MIT -- see LICENSE for details.