Sat, 12 Nov 2011 17:52:28 +0100 wenzelm more precise type;
Sat, 12 Nov 2011 17:01:58 +0100 wenzelm refined Markup_Tree implementation: stacked markup within each entry;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip