Is it possible to inverse regex filter?

Help & Support
1

Have set a regex filter. Now I would like files that do -not- match that filter.
Is that possible - if so, how?

Thanks.

2

Can be done using regex's negative lookahead asserts for the general case, but there's often an easier way to invert a pattern, depending on what the pattern is.

3

You could rewrite the filter with the evaluator and invert the result.

So

^2

would turn into

=!RegExS(name, "^2")
4

First of all: sorry for the late reply. One way or the other I didn't receive a notification.

Thanks for the replies.

Example:
Blah blah- 20102002 143124.doc
Blah blah grey.doc
Blah blahBlah blah-05122001 105640.pdf
Blah blahBlah blahBlah blah-05122001 105640.pdf
Blah blah-1SblueA C.doc
Blah blahBlah blah-1SA A.doc
Blah blah w953 02052001 210857.xls
Blah blahBlah blahBlah blah red.doc
Blah blah 27041999 193542.xls
Blah blah 24041999 003057.xls
Blah blahBlah blah stop.doc
Blah blah group A 03110216 071846.jpg
Blah blah green 13072013.doc

Have been busy myself trying to get the right regex that may match lines -not- containing date, or date-time.
It may read something like: ^(?!.*(?:\d{2}-?\d{2}-?\d{4})(?: \d{6})?\.[^.]+$).+

However, probably this is not supported by Opus filter, so I gave up and let it rest.

Thanks again.

5

The regex appears to work correctly.

Still, a flag such as Set QUICKFILTERFLAGS=inverton to easily invert an existing filter would be a useful feature.