On Sun, 02 Nov 2014 10:34:28 -0500
Stefan Monnier <monnier@iro.umontreal.ca> wrote:

> > M-. is bound to a new command `find-definition', which primarily
> > calls the value of a new variable `find-definition-function' (by
> > default a wrapper around `find-tag' to keep the current
> > functionality intact). `find-definition' also keeps track of the
> > tag ring, so this would move `find-tag-marker-ring' and related
> > functionality out of etags.el, too.
> 
> Yes, this sounds great.
>
> [...]
>
> > Comments?
> 
> I'm all for it,

Some initial patch attached. Is this what you had in mind when you said
the above? Anything I should change to make it fit into Emacs better? I
do not know much about Emacs coding conventions.

Currently missing:

- find-definition does not store locations in the tag ring yet
  (ran out of time and wanted to post the initial patch for feedback)
- The whole "find uses" interface
- etags.el integration
- emacs-lisp-mode integration

This also does define a minor mode instead of changing the global key
bindings. I think in the final version it should replace the key
binding definitions done in etags.el. Is this correct? Do I need to
hook it up elsewhere in the build process?

Public git repo for those who find that easier to read / clone (nothing
there that isn't in the attached patch):

https://github.com/jorgenschaefer/emacs/tree/find-definition
https://github.com/jorgenschaefer/emacs/commit/ecac500ac7dee3095863df23c4cd661ba62e2187

Regards,
Jorgen