From: Matthias Koeppe <mkoeppe@mail.Math.Uni-Magdeburg.De>
Cc: rm@fabula.de, guile-devel@gnu.org
Subject: Re: Bug in eval-string?
Date: Fri, 09 Aug 2002 11:06:34 +0200 [thread overview]
Message-ID: <uw5wur0765h.fsf@saturn.math.uni-magdeburg.de> (raw)
In-Reply-To: <878z3hukoz.fsf@zagadka.ping.de> (Marius Vollmer's message of "08 Aug 2002 23:03:56 +0200")
Marius Vollmer <mvo@zagadka.ping.de> writes:
> What about adding "with" as a general dynamic scoping construct?
>
> (with ((current-module) boxx)
> ...)
Please don't.
AFAIK, dynamic-scoping hacks of this flavor are commonly known as
FLUID-LET in Scheme:
- Syntax: fluid-let `(BINDINGS ...)' FORMS...
(fluid-let ((VARIABLE INIT) ...)
EXPRESSION EXPRESSION ...)
An implementation can be found in SLIB. Due to Guile's generalized
set!, FLUID-LET also carries over to places like (CURRENT-MODULE)
instead of VARIABLE, if CURRENT-MODULE is a procedure-with-setter.
Regards,
--
Matthias Köppe -- http://www.math.uni-magdeburg.de/~mkoeppe
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next prev parent reply other threads:[~2002-08-09 9:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-08 12:56 Bug in eval-string? rm
2002-08-08 21:03 ` Marius Vollmer
2002-08-09 9:06 ` Matthias Koeppe [this message]
2002-08-09 9:19 ` Marius Vollmer
2002-08-09 10:24 ` Matthias Koeppe
2002-08-10 14:18 ` Marius Vollmer
2002-08-12 18:20 ` Matthias Koeppe
2002-08-13 0:39 ` Marius Vollmer
2002-08-14 19:07 ` Marius Vollmer
2002-08-17 11:09 ` Neil Jerram
2002-08-20 11:39 ` Matthias Koeppe
2002-08-21 19:26 ` Marius Vollmer
2002-08-27 14:18 ` Emacs variables (was: Bug in eval-string?) Matthias Koeppe
2002-08-31 13:51 ` Marius Vollmer
2002-08-08 21:27 ` Bug in eval-string? Neil Jerram
2002-08-09 9:35 ` rm
2002-08-10 14:43 ` Marius Vollmer
2002-08-12 10:49 ` rm
2002-08-13 20:55 ` Marius Vollmer
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