LogViewPlus Support » LogViewPlus Support » Help & Support » Is it possible to use text filters for "adjacent lines"? As text "AB" has to be found 2 lines above text "CD"

Is it possible to use text filters for "adjacent lines"? As text "AB" has to be found 2 lines above text "CD"

Philer — Sun, 23 Apr 2023 13:35:01 GMT

I was wondering, if something similar could be possible with regex or maybe SQL filter

RE: Is it possible to use text filters for "adjacent lines"? As text "AB" has to be found 2 lines above text "CD"

LogViewPlus Support — Sun, 23 Apr 2023 13:35:01 GMT

I took a quick look into implementing the Lag function. Unfortunately, there are a few technical issues and I don't think it would be a good fit at this time.

What I would like to do instead is consider the other issue you raised. I think LogViewPlus could do a better job of filtering groups of log entries in a single operation. A lot of the logic necessary to do this already exists in Rules, but this would need to be repackaged to support advanced filtering.

Thanks for the suggestion,

Toby

RE: Is it possible to use text filters for "adjacent lines"? As text "AB" has to be found 2 lines above text "CD"

LogViewPlus Support — Sat, 22 Apr 2023 13:53:55 GMT

Currently, the only way to do something like this would be to create a custom analyser.

However, we have recently added SQL capabilities into LogViewPlus. If we added support for the lag function, we should be able to handle scenarios like this by creating a SQL filter. This function may not work properly when a log file is in tail mode, but I think it is still a feature worth considering.