Mon, 02 Aug 1999 15:39:04 +0200 wenzelm removed obsolete concat;
Mon, 02 Aug 1999 11:33:18 +0200 paulson String.isPrefix
(0) -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip