Hi Guile Users!
I recently looked at some online course about Elixir and saw an elegant
use of pipes (the operator `|>` in Elixir). Then I remembered, that in
Racket there are so called threading macros, which seem to accomplish
the same:
https://github.com/lexi-lambda/threading/blob/master/threa
On Sun, 7 Jul 2019 12:42:03 +0200
Zelphir Kaltstahl wrote:
> Hi Guile Users!
>
> I recently looked at some online course about Elixir and saw an elegant
> use of pipes (the operator `|>` in Elixir). Then I remembered, that in
> Racket there are so called threading macros, which seem to accomplish
On Sun, 7 Jul 2019 19:32:59 +0100
Chris Vine wrote:
[snip]
Text munge by the editor
This:
(list (loop (car rest) (cdrrest)))])
^
should be:
(list (lo
Hi Chris,
Chris Vine writes:
> I have a pipeline macro which sort-of mimics ML's |> pipeline operator
> which I use a lot:
>
> (define-syntax ->
> (lambda (x)
> (syntax-case x ()
> [(k exp0 . exps)
>(let* ([reversed (reverse (cons (syntax->datum #'exp0)
>
On Sun, 07 Jul 2019 15:30:36 -0400
Mark H Weaver wrote:
> Hi Chris,
>
> Chris Vine writes:
>
> > I have a pipeline macro which sort-of mimics ML's |> pipeline operator
> > which I use a lot:
> >
> > (define-syntax ->
> > (lambda (x)
> > (syntax-case x ()
> > [(k exp0 . exps)
> >
On Sun, 7 Jul 2019 21:16:13 +0100
Chris Vine wrote:
> I need to think more about this and/or reproduce this later.
>
> This is with guile-2.2.6 by the way.
OK, I did set up the test of your macro incorrectly (the one using
syntax-rules): tested properly, as you say it produces
[t=global-t] in
Hi Chris,
Here's a complete, unedited transcript with Guile 2.2.6:
--8<---cut here---start->8---
mhw@jojen ~$ guile
GNU Guile 2.2.6
Copyright (C) 1995-2019 Free Software Foundation, Inc.
Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This
Hi Chris,
Chris Vine writes:
> My version was hygienic when used in functions, but not when used as a
> macro in a macro.
The word "hygienic" should not be used to describe your original macro.
It would be more accurate to say that although your original version was
unhygienic, in practice it wo
On Sun, 07 Jul 2019 18:24:32 -0400
Mark H Weaver wrote:
> Hi Chris,
>
> Here's a complete, unedited transcript with Guile 2.2.6:
>
> --8<---cut here---start->8---
> mhw@jojen ~$ guile
> GNU Guile 2.2.6
> Copyright (C) 1995-2019 Free Software Foundation, Inc.
>
On 7/7/19 6:42 AM, Zelphir Kaltstahl wrote:
>
> (1) Does something already exist?
>
This project was posted not too long ago on this mailing list.
https://bitbucket.org/bjoli/guile-threading-macros/src/default/
- Erik
Hello again,
Chris Vine writes:
> My version was hygienic when used in functions, but not when used as a
> macro in a macro.
Not to belabor the point, but I wanted to mention that the unhygienic
'->' macro may fail when used in procedures, even when '->' is never
used in the definition of anothe
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