Re: etags

[Peter Lee <pete_lee@swbell.net>]

>>>> Kevin Dziulko writes:
    Kevin> Thanks for your reply, but "grep -n "^#define" *.c" isn't
    Kevin> even close to what I'm looking for.  I don't want a list of
    Kevin> #define'ed constants, but rather #define'ed constants *THAT
    Kevin> ACTUALLY GET USED*. That's why in my example I just wanted
    Kevin> "Line 7: MSG1" and nothing about CONST1 to ever get
    Kevin> listed. [also, I only want defines from my local program
    Kevin> listed, and not any of the system library defines]. The
    Kevin> cxref command is the closest to this that I've found thus
    Kevin> far.

Seems like with a little lisp you could take the output of the above
grep and put it in a buffer.  Then using a regex pattern to match your
actual constant, on that buffer, perform a grep on each one appending
the output to a seperate buffer.

Or you could do the above and if grep returns nothing for a given
constant, put that constant in a buffer... when it's done then all you
have is a list of constants that are *not* used and can then infer
that all others must be used somewhere.