Help needed with a simple filter plugin

[castles_made_of_sand]

Hey sorry dude, I missed this, I'll sort this out for you at lunch.

[sawfoot]

It runs a regex search as you type, folding out anything that isn't +/- $lines from the found regions, so as to only show relevant context (like grep). If you press enter to `commit` it'll delete any of those `red dot` marked (in the gutter) lines. In either case, pressing enter or escape closes the input panel and the initial view folding/selections are restored. You can see there's a Zebra striping pattern surrounding contexts indicating contiguous lines, without recourse to getting dirty in the gutter.

Would you consider releasing the source for this, or as a plugin? There seems to be some interest in something like this: eg.
viewtopic.php?f=4&t=7963

And for people who want something like orgmode-like (of which the plugin development seems to have stalled)

[castles_made_of_sand]

I think I lost that code in the great hard drive failure of back when. I don't recall it being all that hard to write though. Pester me at ndudfield@gmail.com Ill see if its still somewhere.