Fri, 11 Mar 2022 12:56:37 +0100 wenzelm discontinued isabelle_filesystem (superseded by isabelle_encoding), see also da1108a6d249;
Thu, 10 Mar 2022 20:16:19 +0100 wenzelm actually decode/encode symbols;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 tip