bug#59388: Open emacsclient file at last line

[Jim Porter <jporterbugs@gmail.com>]

On 11/19/2022 12:33 PM, Eli Zaretskii wrote:
>> Date: Sat, 19 Nov 2022 12:08:06 -0800
>> Cc: xerusx@pm.me, 59388@debbugs.gnu.org
>> From: Jim Porter <jporterbugs@gmail.com>
>>
>> 1. Why does --eval do that? You can mix filenames and --eval with the
>>      regular emacs program:
>>
>>        emacs -Q foo.txt --eval '(message "hi")'
>>
>>      Why doesn't emacsclient work similarly? (On the other hand, changing
>>      this might break compatibility, so we should be careful here.)
> 
> I don't think we can change the semantics of --eval.

Yeah, probably not. I'm not sure how important fixing this inconsistency 
is, but if we *were* to fix it, I think the least-disruptive would be to 
add a new option like "emacsclient --eval-one" that behaves like "emacs 
--eval" and add an obsoletion warning to "emacsclient --eval". Then, 
after a few versions, make "emacsclient --eval" work like "emacsclient 
--eval-one".

This might be more effort than it's worth though...

> Maybe we don't need to go as far as that discussion led us?  Just adding a
> switch --funcall, to mimic what Emacs has, could be enough?  Then we'd be
> able to say
> 
>    emacsclient -f eob FILE
> 
> (assuming we also add a function 'eob' to Emacs).

With the caveat that -f is already used for --server-file, I think this 
would be fine. --funcall is a lot simpler to implement than --apply, at 
least from emacsclient.