How to pathfind an interior selection gap using script?

[brian_p_dts]

Hi all, thoroughly stumped on this one, probably due to my lack of PS chops. I have a variety of transparent pngs. Some of them have an interior gap after an expand/smooth operation. Is there a way to fix these interior gaps programatically in jsx? Thanks. 

[LightningPlugins]

I do that in my plugin https://lightningplugins.com
I remember it being a bit tricky, but essentially I turn the selection into a shape and then combine the shapes and then make a new selection from that. I am sure there are better ways but that is what I came up with.

[c.pfaffenbichler · Accepted solution]

A Script can store the Selection, convert the Selection to a Work Path, then use only the first subPathItem to create a new Selection (or depending on the needs contract it and add it the the original Selection so the original edge detail/softness is maintained).