comp.lang.lisp Google Group

NYC LOCAL: Tuesday 10 November 2009 Lisp NYC: Gershom Bazerman on Simple Scheme for Tricky Differentials

secret...@lxny.org — Mon, 09 Nov 2009 06:24:08 UT

<blockquote
what="official Lisp NYC announcement"
edits="some white space compressed, directions modified">
Date: Tue, 03 Nov 2009 10:40:32 -0500
From: heow <li...@alphageeksinc.com>
To: LISP NYC <l...@lispnyc.org>
Subject: [Lisp] Lisp Meeting: Nov 10th 7:00 at Trinity
Join us Tuesday, Nov 10th from 7:00 - 9:00 at Trinity Lutheran for

Re: How to tell reader that strings are delimited with `<' and `>' ?

vniko...@pobox.com (Vassil Nikolov) — Mon, 09 Nov 2009 04:41:30 UT

No escape?
---Vassil.

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Re: Ron Garret considered harmful

vniko...@pobox.com (Vassil Nikolov) — Mon, 09 Nov 2009 02:45:58 UT

That is true, but it begs the question. For example, when some
within that group speak in one way and the rest speak in another,
what is the criterion determining which is standard or "correct"?
I am not really after the answers to such questions here, but just
trying to demostrate that the notion of "correctness" in natural

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Re: Ron Garret considered harmful

raffaelcavall...@pas.espam.s.il.vous.plait.mac.com (Raffael Cavallaro) — Mon, 09 Nov 2009 02:02:21 UT

The speech of the educated elite, which defines the standard dialect,
and hence "correct" grammar, evolves too...

Re: Ron Garret considered harmful

vniko...@pobox.com (Vassil Nikolov) — Mon, 09 Nov 2009 01:39:40 UT

As long as this accounts for language evolution adequately. Maybe
it does, but if so, that is far from obvious.
---Vassil.

Re: How to tell reader that strings are delimited with `<' and `>' ?

mirko.vuko...@gmail.com (Mirko) — Mon, 09 Nov 2009 01:36:39 UT

On Nov 8, 5:03 pm, p...@informatimago.com (Pascal J. Bourguignon)
wrote:
This is how I do it:
(defun read-until-close-angle (stream ch)
"Read until closing `>', create corresponding symbol, and assign
ptype of `value'. Substitute spaces with dashes"
(declare (ignore ch))
(let ((string (coerce

Re: UPDATE, UPDATE*

p...@informatimago.com (Pascal J. Bourguignon) — Mon, 09 Nov 2009 00:42:17 UT

Oh, you mean *I/O* register. You didn't write that first.
(Some processors with a lot of registers, or with register stacks, do
store some of their registers in memory.)
In any case, I never noted any provision for such a kind of place in
CLHS... I'd expect an implementation providing memory mapped I/O

Re: UPDATE, UPDATE*

kkylh...@gmail.com (Kaz Kylheku) — Mon, 09 Nov 2009 00:10:25 UT

Since when would you access a memory mapped I/O register through cached
virtual memory?
*boggle*

Re: Ron Garret considered harmful

raffaelcavall...@pas.espam.s.il.vous.plait.mac.com (Raffael Cavallaro) — Sun, 08 Nov 2009 23:59:12 UT

If you read the examples I gave for "drink" I think you'll find this is
not too far off the mark, to the extent that a moonshine-drinking
redneck is analogous to a monkey.
Formally? None. Informally? The speech of those who have actually been
educated in grammar. People educated in grammar know that there is a

Re: How to tell reader that strings are delimited with `<' and `>' ?

rnospa...@flownet.com (Ron Garret) — Sun, 08 Nov 2009 23:58:38 UT

In article <873a4o8xyd....@galatea.local> ,
I use this:
(defun make-string-reader (c1 c2)
(set-macro-character
c1
(lambda (stream c)
(declare (ignore c))
(with-output-to-string (s)
(loop for c = (read-char stream)
with cnt = 1
if (eql c c1) do (incf cnt)
else if (eql c c2) do (decf cnt)

Re: UPDATE, UPDATE*

p...@informatimago.com (Pascal J. Bourguignon) — Sun, 08 Nov 2009 23:48:29 UT

This cannot count as a side effect, since virtual memory or cache
behavior preserves the state of the process, by definition (I don't
mean the state of the kernel about the process).
If you mean a time attack, then I could provide you a kernel that will
give you the same access time when the data is in cache or physical

Re: UPDATE, UPDATE*

kkylh...@gmail.com (Kaz Kylheku) — Sun, 08 Nov 2009 23:44:48 UT

What if a getter and setter access a memory-mapped register?