GNU bug report logs - #30086
Please add a flag to stop etags from falling back to Fortran and C

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: bug-gnu-emacs <at> gnu.org
Subject: Please add a flag to stop etags from falling back to Fortran and C
Date: Fri, 12 Jan 2018 15:06:08 +0300

Previous discussion here: 
http://lists.gnu.org/archive/html/emacs-devel/2018-01/msg00323.html

Message #8 received at 30086 <at> debbugs.gnu.org (full text, mbox):

From: Francesco Potortì <pot <at> gnu.org>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 30086 <at> debbugs.gnu.org
Subject: Re: bug#30086: Please add a flag to stop etags from falling back to
 Fortran and C
Date: Fri, 12 Jan 2018 14:09:40 +0100

>Previous discussion here: 
>http://lists.gnu.org/archive/html/emacs-devel/2018-01/msg00323.html

I argue that fallbacks should be removed, or at least the default
reversed, i.e., not use fallback unless some --legacy-fallback option is
given.

Falbacks only make sense in an environment where Fortran and C are much
more prominently used than other languages AND where it is common to use
nonstandard suffixes for the source files.

Neither assumption is true nowadays, and I'd say it hasn't been true for
projects started in maybe the latest 20 years, while it may have been
true for legacy projects at the time when Etags was written.

Those legacy projects are the only reason why Etags should keep using a
default.  I assume that if people need to support Fortran or C
environments 20 years old without even changing the file name suffixes,
they are probably forced to use old tools, among which old Etag
versions, and we should not worry about such strict compatibility.

So, I'd say, just remove fallbacks, or use them only if a
--legacy-fallback option is used.

Message #11 received at 30086 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Francesco Potortì <pot <at> gnu.org>
Cc: 30086 <at> debbugs.gnu.org, dgutov <at> yandex.ru
Subject: Re: bug#30086: Please add a flag to stop etags from falling back to
 Fortran and C
Date: Fri, 12 Jan 2018 16:00:09 +0200

> Date: Fri, 12 Jan 2018 14:09:40 +0100
> From: Francesco Potortì <pot <at> gnu.org>
> Cc: 30086 <at> debbugs.gnu.org
> 
> So, I'd say, just remove fallbacks, or use them only if a
> --legacy-fallback option is used.

The latter, of course (if the default is to change).

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