Compiling separately re for header, body.
Did a lot of experimenting. Made a main2.py, for a while, then
went back to the original. In the end, I found a nice, clean way
to display the headers. No luck yet, though, associating the headers
with successful hits from the search terms. It would be nice to
have more granular control than what findall() returns. Is there
a findnext()?