Tue, 05 Jan 2010 16:29:31 +0100 wenzelm separate module Thy_Syntax for command span parsing;
Tue, 05 Jan 2010 16:29:03 +0100 wenzelm more accurate scanning of bad input;
Tue, 05 Jan 2010 15:45:32 +0100 wenzelm added filter_proper parameter;
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