Fri, 17 Sep 2010 21:50:44 +0200 wenzelm Isabelle_Markup.overview_color: indicate error / warning messages;
Fri, 17 Sep 2010 21:49:34 +0200 wenzelm some specific message classification;
Fri, 17 Sep 2010 21:04:56 +0200 wenzelm Syntax.read_asts error: report token ranges within message -- no side-effect here;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip