Markup block - Gen<None> - 22 - (0:0,0)
    Markup span - Gen<Markup> - [{] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:1
        HtmlTokenType.Text;[{];
    Tag block - Gen<None> - 20 - (1:0,1)
        Markup span - Gen<Markup> - [<span] - SpanEditHandler;Accepts:Any - (1:0,1) - Tokens:2
            HtmlTokenType.OpenAngle;[<];
            HtmlTokenType.Text;[span];
        Markup block - Gen<Attr:foo, foo='@(6:0,6),'@(17:0,17)> - 12 - (6:0,6)
            Markup span - Gen<None> - [ foo='] - SpanEditHandler;Accepts:Any - (6:0,6) - Tokens:4
                HtmlTokenType.WhiteSpace;[ ];
                HtmlTokenType.Text;[foo];
                HtmlTokenType.Equals;[=];
                HtmlTokenType.SingleQuote;['];
            Markup span - Gen<LitAttr:@(12:0,12)> - [abc] - SpanEditHandler;Accepts:Any - (12:0,12) - Tokens:1
                HtmlTokenType.Text;[abc];
            Markup block - Gen<None> - 2 - (15:0,15)
                Markup span - Gen<LitAttr:@(15:0,15)> - [@] - SpanEditHandler;Accepts:None - (15:0,15) - Tokens:1
                    HtmlTokenType.Transition;[@];
                Markup span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (16:0,16) - Tokens:1
                    HtmlTokenType.Transition;[@];
            Markup span - Gen<None> - ['] - SpanEditHandler;Accepts:Any - (17:0,17) - Tokens:1
                HtmlTokenType.SingleQuote;['];
        Markup span - Gen<Markup> - [ />] - SpanEditHandler;Accepts:Any - (18:0,18) - Tokens:3
            HtmlTokenType.WhiteSpace;[ ];
            HtmlTokenType.ForwardSlash;[/];
            HtmlTokenType.CloseAngle;[>];
    Markup span - Gen<Markup> - [}] - SpanEditHandler;Accepts:Any - (21:0,21) - Tokens:1
        HtmlTokenType.Text;[}];
