On Tue, Nov 26, 2013 at 11:57 AM, Lennart Borgman wrote: > Is not that what is done normally in XML documents? (Html/css, office, > etc)? > Yes, pretty much. I did not mean in anyway to give an impression that this represented creativity on my part. I was simply trying to suggest a way to achieve the level of abstraction I have experienced in other mark-up systems. /john