From: Richard Stallman <rms@gnu.org>
Cc: neil@ossau.uklinux.net, raeburn@raeburn.org, emacs-devel@gnu.org
Subject: Re: Emacs Lisp and Guile
Date: Tue, 30 Jul 2002 23:54:54 -0600 (MDT) [thread overview]
Message-ID: <200207310554.g6V5ssc16508@aztec.santafe.edu> (raw)
In-Reply-To: <ljd6t5if01.fsf@burns.dt.e-technik.uni-dortmund.de> (message from Marius Vollmer on 30 Jul 2002 14:20:30 +0200)
> Scheme variables are normally lexical. What do people normally do in
> Scheme when you want a dynamically scoped value?
In plain Scheme, you use 'dynamic-wind' to establish a dynamic
context. Entering and leaving that context will run specified
procedures that can swap values in and out of variables that should
have dynamically scoped values.
It is very undesirable for Lisp dynamic variables to be different
from Scheme dynamic variables. It makes the system specs incoherent.
Is it possible to extend dynamic-wind so that it can handle
buffer-local, frame-local, etc. contexts? Then a Lisp variable
could be handled with dynamic-wind as usual, and there would be
no divergence between Scheme variables and Lisp variables.
In Guile, we also have 'fluids'. A fluid is a normal object like a
cons pair that holds one object per thread. That is, fluids are our
mechanism for thread local variables.
Could this be unified with dynamic-wind also?
next prev parent reply other threads:[~2002-07-31 5:54 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-20 0:35 Emacs Lisp and Guile Richard Stallman
2002-07-20 8:37 ` Neil Jerram
2002-07-21 20:15 ` Richard Stallman
2002-07-24 22:05 ` Neil Jerram
2002-07-25 18:07 ` Richard Stallman
2002-07-25 19:16 ` Marius Vollmer
2002-07-27 18:53 ` Richard Stallman
2002-07-30 12:20 ` Marius Vollmer
2002-07-31 5:54 ` Richard Stallman [this message]
2002-08-01 19:39 ` Marius Vollmer
2002-08-01 20:52 ` Kai Großjohann
2002-08-02 10:23 ` Marius Vollmer
2002-08-02 10:41 ` Kai Großjohann
2002-08-02 12:09 ` Marius Vollmer
2002-08-02 12:37 ` Kai Großjohann
2002-08-05 15:19 ` Marius Vollmer
2002-08-02 22:14 ` Richard Stallman
2002-08-02 22:53 ` Sam Steingold
2002-08-03 15:38 ` Simon Josefsson
2002-08-03 16:15 ` Sam Steingold
2002-08-03 19:35 ` Lars Magne Ingebrigtsen
2002-08-03 20:33 ` Kai Großjohann
2002-08-03 20:40 ` Simon Josefsson
2002-08-03 22:41 ` Sam Steingold
2002-08-04 5:14 ` Eli Zaretskii
2002-08-04 23:26 ` Richard Stallman
2002-08-05 15:58 ` Sam Steingold
2002-08-09 18:02 ` Alex Schroeder
2002-08-11 3:54 ` Richard Stallman
2002-08-04 23:25 ` Richard Stallman
2002-08-05 16:10 ` Sam Steingold
2002-08-10 7:17 ` Noah Friedman
2002-08-10 14:01 ` Alex Schroeder
2002-08-11 16:52 ` Sam Steingold
2002-08-02 17:43 ` Richard Stallman
2002-08-05 16:08 ` Marius Vollmer
2002-08-07 14:24 ` Richard Stallman
2002-08-08 16:35 ` Marius Vollmer
2002-08-09 16:39 ` Richard Stallman
2002-08-12 14:51 ` Marius Vollmer
2002-08-13 1:47 ` Richard Stallman
2002-08-13 19:13 ` Marius Vollmer
2002-08-14 5:15 ` Richard Stallman
2002-08-14 18:26 ` Marius Vollmer
2002-08-15 19:53 ` Richard Stallman
2002-08-19 21:03 ` Marius Vollmer
2002-08-09 6:50 ` Stefan Monnier
2002-08-10 17:16 ` Richard Stallman
2002-08-07 14:24 ` Richard Stallman
2002-08-07 15:38 ` Simon Josefsson
2002-08-08 7:01 ` Richard Stallman
2002-08-08 16:06 ` Marius Vollmer
2002-08-09 16:39 ` Richard Stallman
2002-08-12 13:40 ` Marius Vollmer
2002-08-13 1:47 ` Richard Stallman
2002-08-13 19:17 ` Marius Vollmer
2002-08-14 5:15 ` Richard Stallman
2002-08-14 18:21 ` Marius Vollmer
2002-08-10 14:32 ` Michael Sperber [Mr. Preprocessor]
2002-08-11 3:55 ` Richard Stallman
2002-08-11 8:28 ` Michael Sperber [Mr. Preprocessor]
2002-08-12 17:05 ` Richard Stallman
2002-08-13 6:58 ` Michael Sperber [Mr. Preprocessor]
[not found] ` <ljr8h4803x.fsf@burns.dt.e-technik.uni-dortmund.de>
2002-08-13 22:47 ` Richard Stallman
2002-08-14 18:50 ` Marius Vollmer
2002-08-15 19:53 ` Richard Stallman
2002-08-19 20:54 ` Marius Vollmer
2002-08-21 0:12 ` Richard Stallman
2002-07-28 8:17 ` Neil Jerram
2002-07-29 17:30 ` Richard Stallman
2002-07-25 4:22 ` Ken Raeburn
2002-11-05 23:28 ` Neil Jerram
2002-11-07 4:49 ` Richard Stallman
2002-11-07 20:32 ` Neil Jerram
2002-11-09 11:54 ` Richard Stallman
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