Re: Ask etags to stop language auto-detection from falling back to Fortran and C?

[Eli Zaretskii <eliz@gnu.org>]

> Cc: emacs-devel@gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Fri, 12 Jan 2018 11:23:46 +0300
> 
> > It will only
> > try the fallbacks if all the means to detect the language failed.  So
> > what do you mean by "detect, but without the fallbacks"?
> 
> I'm saying I don't want the fallbacks. If you've failed to detect the 
> language based on the file extension or the sharp-bang, stop, don't try 
> to parse the file with something that will most likely get wrong results.
> 
> > It will, for the files following --language=none on the command line
> > (but not for those that come before this switch).  But if the
> > extension and/or sharp-bang are in the file, the detection should not
> > have failed,
> 
> It does if etags is unfamiliar with the file's language.

OK, so next question: why do you care about the fallbacks?  At worst,
they will generate tags that no one will ever try to find, right?

IOW, can you present a real-life use case where these fallbacks do any
harm?