Packages 
Package Description
nu.validator.encoding  
nu.validator.htmlparser.annotation
This package provides annotations for facilitating automated translation of the source code into other programming languages.
nu.validator.htmlparser.common
This package provides common interfaces and enumerations.
nu.validator.htmlparser.dom
This package provides an HTML5 parser that exposes the document using the DOM API.
nu.validator.htmlparser.extra  
nu.validator.htmlparser.impl
This package contains the bulk of parser internals.
nu.validator.htmlparser.io  
nu.validator.htmlparser.rewindable  
nu.validator.htmlparser.sax
This package provides an HTML5 parser that exposes the document through the SAX API.
nu.validator.saxtree
This package provides SAX Tree: a tree model optimized for creation from SAX events and replay as SAX events.