From: PJ Weisberg <pjweisberg@gmail.com>
To: Juanma Barranquero <lekktu@gmail.com>
Cc: David Combs <dkcombs@panix.com>,
"help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: Re: Running a lisp script
Date: Sun, 22 Apr 2012 12:26:39 -0700 [thread overview]
Message-ID: <CAJsNXTmyXR31BW1QkR2esznxtWM0+jCTUGCtopXMZTepA+gsog@mail.gmail.com> (raw)
In-Reply-To: <CAAeL0SSThN-XwBD9Wc63UkQPwiZ4JV5fYzCUyECgsXdykHoYiQ@mail.gmail.com>
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On Sunday, April 22, 2012, Juanma Barranquero <lekktu@gmail.com> wrote:
> On Sun, Apr 22, 2012 at 08:06, David Combs <dkcombs@panix.com> wrote:
>
>> Too late at night for me to remember the name of the "scheme", but
>> Perl added it via its (sic) "local" variables. AH -- dynamic binding,
>> that's what it's called. Which Elisp doesn't have, being derived from
>> MacLisp thinking.
>>
>> That was a long time ago. Is what I remember actually a correct memory?
>
> I think you've mixed a bit lexical and dynamic scoping (Perl "local"
> is indeed dynamic scoping, but Scheme's novelty was lexical scoping,
> which Common Lisp copied).
And to answer the question, elisp supports dynamic scoping, and support for
lexical scoping will be added in Emacs 24.1.
--
-PJ
Gehm's Corollary to Clark's Law: Any technology distinguishable from
magic is insufficiently advanced.
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next prev parent reply other threads:[~2012-04-22 19:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <0Ixar.31221$M%7.9998@newsfe10.iad>
[not found] ` <87obrpckkm.fsf@notengoamigos.org>
[not found] ` <JXyar.20747$pc1.8169@newsfe11.iad>
[not found] ` <8762dxw4l6.fsf@kuiper.lan.informatimago.com>
2012-04-22 6:06 ` Running a lisp script David Combs
2012-04-22 14:01 ` Juanma Barranquero
2012-04-22 19:26 ` PJ Weisberg [this message]
[not found] ` <mailman.444.1335122807.751.help-gnu-emacs@gnu.org>
2012-05-14 1:51 ` David Combs
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