Also don’t neglect what existing command-line tools and scripting might be able to do for you.   (Even Windows, with their PowerShell, is finally glomming on to this...)

For example:   grep -r regex filespec ... already does a very large part of what you are trying to do.   If you could use it simply to grab the matching phrases and “enough of the surrounding real-estate,” you could then filter what grep has sent you, to whittle it down into the final answer, using Perl or otherwise.