What grep command will include the current function name in its output?

Question

I run diff with the -p option so the output will include the name of the function where each change occurred. Is there an analogous option for

Answer 1

Actually "grep -p" has been a fixture in AIX for the last two decades from what I can recall. It is out there, and it's just a matter of porting the behaviour over in fresh code.

It's crude, though, and may need help to know that blank lines within a function don't count.