How to change Drupal input filter behaviour based on output location -

I have a drip filter module whose output I would like to change depends on how the output is being displayed is. Specifically, I want to give the filter full output for the nodes, but trim the content for the blocks below.

I do not think this would be possible. It is difficult to figure out which in which context some are being displayed. It is possible but it is quite hard for your own code. Although the way the filter system works, I do not think it is possible within the filter that it determines the context of the filtered text. It's not made just for something like this