Subject: bug#47408: Etags support for Mercury [v0.5]

From: Eli Zaretskii <[email-masked]>
Date: Mon, 07 Jun 2021 15:13:45 +0300

> Cc: [email-masked], Eli Zaretskii <[email-masked]>
> From: fabrice nicol <[email-masked]>
> Date: Sun, 6 Jun 2021 22:49:19 +0200
> 
> > That's difficult to tell for me.  However, etags provides ctags support
> > for all languages it knows about.  I may be missing something, but I
> > think Mercury would be the first exception.  If that's the case, maybe
> > it would be worth  adding a comment telling so.
> 
> ctags only differs from etags by the fact that its output is 
> Vim-compatible. But it so happens that Mercury has superior in-built 
> support for Vim tagging (the core team use Vim). So ctags would not 
> actually be used by users with Vim-compatibility requirements, they 
> would just use Mercury tagging on Vim.

What do we lose if we make Mercury support active in ctags mode?  Do
we even need to add any code for that?