Re: Proper namespaces in Elisp

[Andrea Corallo <akrl@sdf.org>]

Vladimir Sedach <vas@oneofus.la> writes:

> There is no need to repeat the same mistakes. Andrea's proposal for
> namespacing over bindings/Scheme's approach avoids mangling the
> reader, does not cause problems for the printer, and does not make
> code resort to symbol-name hacks like LOOP does. Scheme's approach to
> namespacing has a lot of advantages over Common Lisp's.
>
> We can also avoid the "namespace multiple inheritance" problems of
> unintended re-definition and import conflicts if we combine João's
> approach of declaring prefixes with the ideas of package-local
> nicknames and namespaces over bindings.
>
> Here is how that might look:
>
> (declare-namespace jennys-awesome-string-library
>   (use elisp29)
>   (export foo))
>
> (declare-namespace jonnys-amazing-syntax-library
>   (use elisp29)
>   (export foo))
>
> (declare-namespace some-new-library
>   (use elisp30)
>   (import jennys-awesome-string-library st-)
>   (import jonnys-amazing-syntax-library sy-))

Hi Vladimir,

This looks pretty similar as a concept to the raw prototype I've put
together and posted this evening:

https://lists.gnu.org/archive/html/emacs-devel/2020-05/msg01034.html

I do not have the prefix for importing but is something I wanted to add.

I'm learning also here that Scheme works on bindings too, good to be
ignorant!! :)  Now I've very curios to see how different is from what I
came up with.

  Andrea

-- 
akrl@sdf.org