Re: Location-aware tags?

["Stefan Reichör" <stefan@xsteve.at>]

Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

> It's possible that this functionality exists, and I'm just unaware of
> it, but wouldn't it be nice if `M-.' could be location-aware instead of
> global?
>
> That is, if I'm in ~/src/emacs/emacs-24/lisp and I hit `M-.', it would
> use the TAGS file in ~/src/emacs/emacs-24.  If I'm in
> ~/src/emacs/trunk/src, it would use the TAGS file in ~/src/emacs/trunk.
> And so on.

etags-table provides such a functionality, see:
http://emacswiki.org/emacs/EtagsTable

> Especially when dealing with branches that have (basically) the same
> symbols, just adding more tags files to the search list doesn't help.
> You can almost get away with it when you're editing totally separate
> projects, but even then you're occasionally popped to the wrong place.
>
> So I'm proposing to add a new variable `tags-use-auto-tags' or
> something, that would make `M-.' always look for the nearest TAGS file
> upwards in the directory structure, and then switch to that file before
> looking up the symbol.
>
> Unless somebody has a better idea.


Stefan.