Markup block - Gen<None> - 33 - (0:0,0)
    Tag block - Gen<None> - 26 - (0:0,0)
        Markup span - Gen<Markup> - [<span] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:2
            HtmlTokenType.OpenAngle;[<];
            HtmlTokenType.Text;[span];
        Markup block - Gen<None> - 20 - (5:0,5)
            Markup span - Gen<Markup> - [ data-foo  =  '] - SpanEditHandler;Accepts:Any - (5:0,5) - Tokens:6
                HtmlTokenType.WhiteSpace;[ ];
                HtmlTokenType.Text;[data-foo];
                HtmlTokenType.WhiteSpace;[  ];
                HtmlTokenType.Equals;[=];
                HtmlTokenType.WhiteSpace;[  ];
                HtmlTokenType.SingleQuote;['];
            Expression block - Gen<Expr> - 4 - (20:0,20)
                Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (20:0,20) - Tokens:1
                    CSharpTokenType.Transition;[@];
                Code span - Gen<Expr> - [foo] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (21:0,21) - Tokens:1
                    CSharpTokenType.Identifier;[foo];
            Markup span - Gen<Markup> - ['] - SpanEditHandler;Accepts:Any - (24:0,24) - Tokens:1
                HtmlTokenType.SingleQuote;['];
        Markup span - Gen<Markup> - [>] - SpanEditHandler;Accepts:None - (25:0,25) - Tokens:1
            HtmlTokenType.CloseAngle;[>];
    Tag block - Gen<None> - 7 - (26:0,26)
        Markup span - Gen<Markup> - [</span>] - SpanEditHandler;Accepts:None - (26:0,26) - Tokens:4
            HtmlTokenType.OpenAngle;[<];
            HtmlTokenType.ForwardSlash;[/];
            HtmlTokenType.Text;[span];
            HtmlTokenType.CloseAngle;[>];
