bug#65902: 29.0.92; emacsclient-mail.desktop fails due to complicated escaping

[Eli Zaretskii <eliz@gnu.org>]

> From: sbaugh@catern.com
> Date: Wed, 13 Sep 2023 13:01:52 +0000 (UTC)
> Cc: 65902@debbugs.gnu.org
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Is quoting the only issue with --eval?  If so, why not have a variant
> > of --eval that quotes the argument by itself, like you do in the
> > patch, i.e. by using quote_argument, instead of inventing yet another
> > weird option with its own small DSL and extra-special rules of how to
> > write the command line with it?
> 
> I am not sure what you're suggesting.  Can you show how the equivalent
> of:
> 
> emacsclient --apply message-mailto -- %u
> 
> would work with that design?

  emacsclient --qeval '(message-mailto %u)'

> > More generally, I cannot say I'm happy that we basically are
> > reiterating everything that was said in bug#57752 instead of picking
> > up where it left off.  Why is it useful to have another discussion
> > like that one (which will probably end up at the same impasse)?
> 
> I admit I didn't see that bug until now, but the way in which this is
> different is that I have now read the discussion, incorporated all the
> advice, and I'm actually implementing it :)

You are well under way to reach the same final point we ended up
there, because both the arguments people voice here and your
responses/reactions are the same as we saw there.  For example, we
already have an additional option to Emacs, although the original
problem had nothing to do with Emacs itself.

Let's not do that this time, okay?