Re: [PATCH 4/6] gdb: add match formatter mechanism for 'complete' command output

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sat, 30 Mar 2024 23:49:18 +0000
> From: Lancelot SIX <lsix@lancelotsix.com>
> Cc: gdb-patches@sourceware.org
> 
> >   (gdb) complete file '/tmp/xx
> >   file '/tmp/xxx/'
> > 
> > The completion offered here is really only a partial completion, we've
> > completed up to the end of the next directory name, but, until we have
> > a filename then the completion is not finished and the trailing quote
> > should not be added.
> > 
> > This would match the readline behaviour, e.g.:
> > 
> >   (gdb) file '/tmp/xx<TAB>
> >   (gdb) file '/tmp/xxx/
> > 
> > In this case readline completes the directory name, but doesn't add
> > the trailing quote character.

Btw, what readline does is not the only useful behavior.  An
alternative would be this:

  (gdb) file '/tmp/xx<TAB>
   => (gdb) file '/tmp/xx/'
  (gdb) file '/tmp/xx/'a<TAB>
   => (gdb) file '/tmp/xx/abcd'

That is, allow to type after the closing quote, and remove the closing
quote before trying to complete.  This way, the user can use
'/tmp/xx/' if that is what she needs, or continue typing and
completing if not.