Eli Barzilay 8cdb172e7f Made `not:' produce predicates tagged as negated -- and for these, an ... empty directory is *not* dropped. This finally makes the results more intuitive, and can now also express queries like only directories, without their content. (See comments and new tests.) svn: r17456		2010-01-01 05:54:47 +00:00
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plt-tree.ss	Made `not:' produce predicates tagged as negated -- and for these, an	2010-01-01 05:54:47 +00:00
tests.ss	Made `not:' produce predicates tagged as negated -- and for these, an	2010-01-01 05:54:47 +00:00
tree.ss	Made `not:' produce predicates tagged as negated -- and for these, an	2010-01-01 05:54:47 +00:00