bug#22947: 25.0.92; xref-find-definitions fails for Perl & etags

[Eli Zaretskii]

> Cc: 22947@debbugs.gnu.org, rogers@modulargenetics.com
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Fri, 11 Mar 2016 14:46:25 +0200
> 
> On 03/11/2016 10:04 AM, Eli Zaretskii wrote:
> 
> > Etags never had these features, so you are asking for enhancements.  I
> > suggest to file a separate wishlist bug report with these requests,
> > and maybe Someone will implement them at some point.
> 
> There's nothing to implement in Emacs, both of these scenarios should 
> work already.

I said "etags", not "emacs".

> And allowing the output of qualified+unqualified, in etags, doesn't seem 
> like a huge job to me.

For languages where qualified tags are already created, maybe.
(C-like languages might be not so easy, due to the state machines they
use.)  But are we sure all languages do?

> > Note that adding such a feature would mean extending the generation of
> > class-qualified names to all the languages which have a notion of a
> > class or a package, so it's not a small job, and requires to have a
> > good understanding of many languages.
> 
> We can perfectly well choose to support this feature only for a few 
> languages. It's better than nothing.

I'm not sure "better than nothing" is good enough.

Anyway, I don't really understand what we are arguing about.

> Here's the relevant excerpt from ctags's manpage:

Thanks, but why do you think I don't have it installed?

> Ultimately, it's your choice, of course.

Volunteers are free to beat me to it, if they have an itch to scratch.