What are you trying to do? In Newsbin there are really 4 different kinds of filters.
1 - Subject Accept
2 - Subject Reject
3 - Filename Accept
4 - Filename Reject.
Subject filters apply to the display. So, you can filter things out when you display a listing of posts or only show things that match the filters. Filename filters apply after download.
Filters you add to "Accept" will only permit matching things to show. Filters you add to "Reject" will reject anything that matches.
For example. Lets say I want to filter out all JPG files when I look at a group.
1 - I create a new filter. Call it "Images". 2 - I add "[.]jpg" to the "Subject Reject" list. 3 - When I load the group. If I select the "Images" filter. It'll hide all lines that contain ".jpg". 4 - If I assign the filter to the group. It'll filter images every time I load the group.
I can then add more filters to images if I want to. [.]png [.]jpeg
"[.]" Just meant . because . has a special meaning in the filter language.
Let me know what you're trying to do and I can be more specific.