<%? row_collapsed %>
+
<%= row_filename %>
<%?%><%? row_expanded %>
-
<%= row_filename %>
<%?%><%? row_source %>
<%= row_filename %>
<%?%><%? !row_collapsed %><%? !row_expanded %><%? !row_source %>
<%= row_filename %>
<%?%><%?%><%?%>