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Regular expressions have always been a weak spot for me, and I've got a
 question that's got me stumped. Here's the problem I'm trying to solve.
 I have somewhat large articles of text (returned from a search), what I'd
 like to do is capture the word and X number of words before and after it
 while tagging the matching word in the captured text. My inital thought
 was to try something like this. The problem I have is that if there is
 more than one term and they overlap, the nth term will not be annotated.
 So my next thought is lookahead/lookbehind, but they don't capture.
 Is there a way to do this with a single regex? Is a regex even the best
 way to do this? Thanks, -Lee