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bug#28403: 25.2; find-tag works, but xref-find-definitions

From: Eli Zaretskii
Subject: bug#28403: 25.2; find-tag works, but xref-find-definitions
Date: Thu, 14 Sep 2017 20:13:31 +0300

> Cc: address@hidden, address@hidden
> From: Dmitry Gutov <address@hidden>
> Date: Thu, 14 Sep 2017 15:13:33 +0300
> On 9/13/17 6:32 PM, Eli Zaretskii wrote:
> >> Should it be a defcustom in etags.el, then? That's not far from what I
> >> suggested in the first place.
> > 
> > That'd be okay, if the UI will be more friendly than letting the user
> > concoct a list of function symbols.
> I'd approve probably any patch that makes 
> etags-xref-find-definitions-tag-order into a defcustom, or even creates 
> a new option governing it.
> But maybe it's not necessary after all? I think we've addressed 
> Winston's needs in different ways by now.

I just feel that having a user-friendly defcustom would be more
future-proof.  Like I said: it's a fire escape.  Every complex feature
needs one.

> Maybe the manual should advertise the necessity to call etags with 
> --regexp in certain cases more prominently instead.

Until very recently, --regex didn't even document the
back-substitution feature it provides.  So we still have a way to go
in that direction.

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