Re: UI inconveniences with M-.

[Dmitry Gutov]

On 05/02/2015 09:59 AM, Stefan Monnier wrote:

> Another thing that we should consider is how to let the user choose
> which backend to use.  Currently we only have xref-etags-mode, but
> I think it would make sense to make it possible for the user to
> dynamically choose among the potentially many more backends (e.g. we
> could add an xref/grep backend, and there will hopefulyl be more using
> things like id-utils, gtags, ...)

I still expect that managing those simply with minor modes will work 
well enough. While using id-utils or gtags instead of etags can be 
valuable, we'd probably stick to only one of them at a time.

Maybe choose between them automatically, like semantic-symref does (and 
allows us to do).

> and maybe also to use several backends
> at the same time (merging the results).

If we agree on the OO approach to grouping (or even the list-of-strings 
approach), merging them automatically would look pretty unsolvable to 
me. Concatenation would work, though (with the OO approach).