Markup block - Gen<None> - 34 - (0:0,0)
    Tag block - Gen<None> - 5 - (0:0,0)
        Markup span - Gen<Markup> - [<foo>] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:3
            HtmlTokenType.OpenAngle;[<];
            HtmlTokenType.Text;[foo];
            HtmlTokenType.CloseAngle;[>];
    Markup span - Gen<Markup> - [<!DOCTYPE foo ] - SpanEditHandler;Accepts:Any - (5:0,5) - Tokens:6
        HtmlTokenType.OpenAngle;[<];
        HtmlTokenType.Bang;[!];
        HtmlTokenType.Text;[DOCTYPE];
        HtmlTokenType.WhiteSpace;[ ];
        HtmlTokenType.Text;[foo];
        HtmlTokenType.WhiteSpace;[ ];
    Expression block - Gen<Expr> - 4 - (19:0,19)
        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (19:0,19) - Tokens:1
            CSharpTokenType.Transition;[@];
        Code span - Gen<Expr> - [bar] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (20:0,20) - Tokens:1
            CSharpTokenType.Identifier;[bar];
    Markup span - Gen<Markup> - [ baz>] - SpanEditHandler;Accepts:None - (23:0,23) - Tokens:3
        HtmlTokenType.WhiteSpace;[ ];
        HtmlTokenType.Text;[baz];
        HtmlTokenType.CloseAngle;[>];
    Tag block - Gen<None> - 6 - (28:0,28)
        Markup span - Gen<Markup> - [</foo>] - SpanEditHandler;Accepts:None - (28:0,28) - Tokens:4
            HtmlTokenType.OpenAngle;[<];
            HtmlTokenType.ForwardSlash;[/];
            HtmlTokenType.Text;[foo];
            HtmlTokenType.CloseAngle;[>];
