Re: Short functions

[Daniel Mendler via "Emacs development discussions." <emacs-devel@gnu.org>]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> There is also a lack in some combinators (flip, curry, uncurry, ...)
>> which are occasionally useful. Also papply and rpapply, since
>> apply-partially lacks conciseness and sometimes one wants apply the
>> arguments to the right. Same with cl-constantly.
>>
>> (papply #'f x)
>> (apply-partially #'f x)
>> (lambda (y) (f x y))
>> (lambda (y z) (f x y z))
>>
>> (lambda (_) x)
>> (constantly x)
>> (lambda (_ _) x)
>> (cl-constantly x)
>
> I think you're arguing for something like `llama`s ## or to expand #'
> to allow things like:

Actually I like the explicitly named combinators (constantly, identity,
papply, etc). Nevertheless some Llama-style syntax would be nice to have
in Elisp. It doesn't have to reuse the #' syntax.

> I'm interested to add new meanings to `function` (aka #') but mostly for
> things like:
>
>     #'(setf foo)
>     #'(peg foo)
>
> to refer to the setters or the peg-matchers of a given name.  It could
> also be used for

Good idea.

Daniel