Extending etags.el + exuberant ctags for duplicate tag definitions

[Nordlöw]

Hi!

I am looking for a way to extend the behaviour of find-tag and similar
functions (in etags.el) together with exuberant ctags (either using
format 1 ("tags") or 2 ("TAGS")) to propose the following completions
for a tag say TAG that have multiple definitions say in the files fa.c
and fb.c in the following way:

Completions for TAG:

TAG@fa.c,
TAG@fb.c

or

TAG@foo()@fa.c,
TAG@bar()@fa.c

Is this possible using the file formats 1 or 2 that Exuberant Ctags
can produce?

Thanks in advance,
Nordlöw