src/Pure/System/options.scala
Tue, 14 Mar 2017 19:46:53 +0100 wenzelm afford early initialization of JEdit_Options, but it may lead to messy exception trace for malformed etc/preferences (see also 6eeaaefcea56);
Thu, 13 Oct 2016 11:54:06 +0200 wenzelm support for separate sub-system options, independent of main Isabelle options;
Tue, 11 Oct 2016 21:25:10 +0200 wenzelm tuned -- Date.Format.default used by toString;
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