[CM] Question for writing tutorials about S7 environments

Iain Duncan iainduncanlists at gmail.com
Fri Jan 15 07:45:54 PST 2021


Thanks for the tips and links. :-)

iain

On Fri, Jan 15, 2021 at 12:47 AM Orm Finnendahl <
orm.finnendahl at selma.hfmdk-frankfurt.de> wrote:

> Am Donnerstag, den 14. Januar 2021 um 06:14:31 Uhr (-0800) schrieb
> bil at ccrma.Stanford.EDU:
> >
> > Both Common Lisp and Scheme have rudimentary support for
> > environments.  I believe r5rs scheme had null-environment and
> > scheme-report-environment (the top-level?), but they are immutable.
> > CL had augment-environment (or was this ACL?).
>
> It's part of the CL standard:
>
> https://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node102.html
>
> I guess in CL for most cases you'd rather use the package machinery as
> it allows for a lot of fine-tuning and context switches are as easy as
> a single 'in-package statement (keeping symbols and vals fully cross
> referentiable across packages):
>
>
> http://www.gigamonkeys.com/book/programming-in-the-large-packages-and-symbols.html
>
> --
> Orm
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