DefaultInputTypeFactory Provides string to InputType instance mappings.

 DefaultLinkRelationFactory Provides string to Relation instance mappings.

 FormDataSet Bundles information stored in HTML forms.

 HtmlEntityProvider Represents the list of all Html entities.

 HtmlMarkupFormatter Represents the standard HTML5 markup formatter.

 PrettyMarkupFormatter Represents the an HTML5 markup formatter with inserted indents.

 SourceSet Represents a useful helper for dealing with source sets.

 ValidationErrors Describes the various validation errors.

 InputTypeNames The collection of (known / used) input type names.

 LinkRelNames The collection of (known / used) link rel names.

 IInputTypeFactory Represents the interface for producing input validation.

 ILinkRelationFactory Represents the factory for resolving link relation.