bug#23179: 25.0.92; Restore `M-,' to continue etags search

[Dmitry Gutov]

On 08.04.2019 22:55, Juri Linkov wrote:

> If project-search searches for a regexp, then using a read-regexp
> is the right thing.

Sure.

> > > > It doesn't have to. fileloop-continue is intended to be used with different
> > > > commands (e.g. some with dired- prefix as well).
> > >
> > > Maybe an alias with another prefix is in order?
> >
> > I don't think so. Or else the next step would be to set up multiple
> > different key bindings, one for each alias. Which is obviously silly.
>
> Then all these commands could share the same key prefix.

You might remember this thread: 
http://lists.gnu.org/archive/html/emacs-devel/2019-02/msg00424.html

It ended up with me not doing what you're asking for now.

> > > > >        3. no keybinding
> > > >
> > > > There's no keybinding for project-search either. The user is welcome to
> > > > choose some.
> > >
> > > Maybe 'M-g M-n'?
> >
> > That's 'next-error', isn't it?
> >
> > Again, the user is welcome to choose whatever key binding that suits them.
> >
> > project-find-regexp, which is a lot handier IMO, has no default key binding
> > either. I'm using 'C-x g'.
>
> Maybe something like 'M-g f r' with a mnemonics "go find regexp".

Do we have other commands to put under 'M-g f'? Otherwise, seems like a 
waste of a keystroke.

Overall, I'm not sure; the M-g bindings, so far, all end up with 
navigation to a single location. Which might be suitable for the 
fileloop based commands, but less so for the xref ones.

Please go ahead and see if there's general support for this or that new 
key binding, but since we never had bindings for rgrep, as well as many 
other frequently-used commands, I don't necessarily feel they're essential.

They could help, though. Aand menu items as well, if we figure out how 
to distinguish project-find-regexp vs. project-search, and showcase both 
kinds of commands there.