bug#1298: allow 'emacsclient -a "emacs --daemon && emacsclient -c"'

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> > How about something like:
>> > emacsclient --start-daemon
>> You mean "emacsclient --start-daemon-if-needed FILENAME" ?
>> Yes, probably something like that.  It could potentially be folded into
>> the alternate-editor (e.g. if alternate-editor has some special value
>> such as the empty string).
> How does the patch below look like?

I'd prefer to combine it with --alternate-editor since the two args are
mutually exclusive.  Have you tried it and it caused problems?

> There's one refinement possible: make --start-daemon-if-needed take an
> argument --start-daemon-if-needed=ARG and use it like this:
> emacs --daemon=ARG

I think this ARG should automatically be taken from the
usual --socket-name argument.


        Stefan