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

From: Dmitry Gutov
Subject: bug#28403: 25.2; find-tag works, but xref-find-definitions
Date: Tue, 19 Sep 2017 03:44:28 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:56.0) Gecko/20100101 Thunderbird/56.0

On 9/14/17 8:13 PM, Eli Zaretskii wrote:

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.

My point is if we document it enough for the majority of the users to find it, it would also make it more likely that they go the fire escape route instead of using etags in the right way. And then get some other wrong impression about xref-find-definitions.

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.

No argument from me.

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