I have been struggling for a while with the negative look ahead regex. I am trying extract certain excerpts from financial statements. Specifically, I would like to extract "Item 1. Business."
Here is the file link
The way I extract the Item 1 section is using boundaries starting from "Item 1" to either "Item 1A," "Item 2", or "Item 3." Unfortunately, the regex does not extract the whole Item 1 because it matches on "Item 3" mentioned in the excerpt, specifically it stops at "discussed more thoroughly in Item 3"
I have tried using negative lookahead to make it match all the way but I can't get my code to work.
Here is my code.
It would be great if you can help me figure out a way to make the regex only match the real end, (beginning of item 3) not the words "item 3" inside the excerpts of "item 1."
Thank you so much!
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