[CM] Question for writing tutorials about S7 environments

[Orm Finnendahl]

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