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Currently inverted regexp not differ from not inverted(in properties sheet). So if you want be sure in your filter, you must open property editor each time. May be negative filter must be marked by prefix or something other. Steps to reproduce: 1)Open properties of WEB-INF node. 2)Switch to "Archive" tab 3)Invoke editor for "Filter" property 4)Check "Regular Expression" radiobutton and type ".*\.txt" in text field. 5)Press "OK" button Notice, that "Filter" property in property sheet is equal to ".*\.txt" 6)Open editor for "Filter" property again, check "Negative" checkbox and press "OK" button. Notice, that "Filter" property in property sheet is equal to ".*\.txt" Well reproduced with 200302070100 build.
The suggestion is to distinguish values in property sheet for example using different color. Tim: is it possible with current property sheet or with new planned version? I remember that something like overriding paint method of my properties can help but it seems to be an extra work that would require maintanance on our side. I am going to implement this RFE only if there is official support and if it becomes usual way in the IDE
AFAIK it is possible now by passing hints to property sheet.
Completely different approach in 4.x makes this irrelevant