html5lib in Pure Dart

This is a pure Dart html5 parser. It's a port of html5lib from Python. Since it's 100% Dart you can use it safely from a script or server side app.

Eventually the parse tree API will be compatible with dart:html, so the same code will work on the client and the server.

Installation

Add this to your pubspec.yaml (or create it):

dependencies:
  html5lib: any

Then run the Pub Package Manager (comes with the Dart SDK):

pub install

Usage

Parsing HTML is easy!

import 'package:html5lib/parser.dart' show parse;
import 'package:html5lib/dom.dart';

main() {
  var document = parse(
      '<body>Hello world! <a href="www.html5rocks.com">HTML5 rocks!');
  print(document.outerHtml);
}

You can pass a String or list of bytes to parse. There's also parseFragment for parsing a document fragment, and HtmlParser if you want more low level control.

Running Tests

# From Dart SVN checkout
./tools/build.py -m release
./tools/test.py -m release html5lib
./tools/test.py -m release -r drt html5lib

Libraries

dom

A simple tree API that results from parsing html. Intended to be compatible with dart:html, but it is missing many types and APIs.

dom_parsing

This library contains extra APIs that aren't in the DOM, but are useful when interacting with the parse tree.

parser

This library has a parser for HTML5 documents, that lets you parse HTML easily from a script or server side application:

parser_console

This library adds dart:io support to the HTML5 parser. Call initDartIOSupport before calling the parse methods and they will accept a RandomAccessFile as input, in addition to the other input types.