Re: Should `position' be implemented in Emacs core and preloaded?

[Tino Calancha <tino.calancha@gmail.com>]

On Wed, 5 Oct 2016, Stefan Monnier wrote:

>> II) Alternatively, they could be implemented in a lighter
>>     lib; i guess the natural candidate is seq.el.
>>     Note that this lib already has `seq-position'.
>
> I consider seq.el as "core" already.  Actually, I also consider
> cl-lib as "core".  The fact that you have to rite (require <..>) is
> fairly secondary.
Yes, you are right.  Of course, they are core Emacs.
What i meant is that it would be nice if people could use that 
kind of useful functions without face resistances.  I saw before
in this list people who wanted to use a function from cl-lib or seq.el,
and they received objections because that would force that file to
require such lib.

> I think sooner or later, these libraries will be preloaded (not sure
> which of the two will get there first, tho).
That sounds interesting.
> Also, FWIW, I don't see many uses of these cl/seq-position functions
> in Emacs, so I'm not sure how important they are, really.
I suspect that one important reason to not appear widely is exactly
that in order to use them we need to require the lib to use it.  Probably
if `member' would be just an alias to `cl-member', we wouldn't see it
as many times as we can see it now in Emacs tree.  I bet that if we follow
the I) above, we will start to see many uses of those functions in the new
code.