Re: gtags-find-tag and gtags-find-rtag in C-code

[Dmitry Gutov]

On 06/02/2015 07:13 PM, Eli Zaretskii wrote:

> > Is there support for pushing and popping the locations (for jumping
> > back and forth)?
>
> The development sources for Emacs have that via xref, I think.

xref doesn't have a bundled backend for id-utils, or gtags, or etc.

So xref-find-definitions will use etags, if available, but 
xref-find-references can use id-utils, or cscope, or gtags, but purely 
as an optimization over grep, which it will fall back to in the absence 
or other tools (or index files generated by them).

> > Shouldn't gtags do the job, just with the right setup, that I am
> > probably missing?
>
> I don't use gtags, but isn't it just for definitions?

gtags can do a lot of things. Users interested in it should try 
https://github.com/leoliu/ggtags, also available via GNU ELPA (no 
integration with xref, though).