Re: [Chicken-users] [ANN] ck-macros 0.2.0

[Mario Domenech Goulart]

On Thu, 28 Feb 2019 22:45:42 -0600 John Croisant <address@hidden> wrote:

> The ck-macros egg version 0.2.0 has been released. This version adds
> CHICKEN 5 support, many new features, some R5RS compatibility fixes, and
> a few breaking changes to the API.
>
>     https://wiki.call-cc.org/eggref/5/ck-macros
>
> ck-macros is based on work by Oleg Kiselyov, with many original
> contributions by me. It provides a novel kind of  macro (or, a novel way
> of using macros) with two important properties:
>
> 1. Aside from wrappers, they are implemented using only standard R5RS
> features, mostly syntax-rules. So they are trivially portable to pretty
> much any Scheme, not just CHICKEN. And wrappers are trivially portable
> to any Scheme that implements er-macro-transformer in the usual way.
>
> 2. They can be composed (combined) much like Scheme procedures can. It
> is even possible to create higher-order macros, analogous to
> higher-order functions. For example, you can use "c-compose" to compose
> multiple CK-macros together, then use "c-map1" to map the composed macro
> over a list. There are many, many examples on the wiki page.
>
> The biggest new feature in version 0.2.0 is the "ck-wrapper" procedure,
> which creates a CK-macro from any Scheme procedure, including lambda
> forms and "let over lambda" closures. The egg provides wrappers for many
> standard R5RS procedures, and it's trivial to create your own.
>
> If this sounds useful to you, wonderful. Personally, I just enjoy
> exploring the boundaries of what is possible with this idea -- already
> much more than I expected!
>
> - John Croisant
>
> P.S. Please add this to the CHICKEN 5 coop:
>
>    
> https://gitlab.com/jcroisant/ck-macros/raw/master/ck-macros.chicken-5.release-info

Thanks a lot, John.  Your egg has been added to the coop.

All the best.
Mario
-- 
http://parenteses.org/mario