R100 (new year revision)

R100 occured after some time of vacation from the project. My dive into program parsing made me get some intuitive plan in my head for in what direction the project is going to be developed, but I believe the mkmap program syntax needs some heavy revision after I've rehacked the main non-program-parsing code in accord with my vague intuitions. That's the life with theory and praxis: back and forth, nilly-willy over the border of the true and the functioning.