From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Newsgroups: gmane.emacs.help Subject: Re: Lexical vs. dynamic: small examples? Date: Sat, 14 Aug 2021 22:31:50 +0200 Message-ID: <20210814203150.GA14760@tuxteam.de> References: <20210814073518.GC11671@tuxteam.de> <87v9473jsn.fsf@zoho.eu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="4Ckj6UjgE2iN1+kY" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36296"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/1.5.21 (2010-09-15) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Aug 14 22:32:30 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mF0KT-0009EI-P8 for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 14 Aug 2021 22:32:29 +0200 Original-Received: from localhost ([::1]:37648 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mF0KR-0000ot-Pn for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 14 Aug 2021 16:32:27 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:34656) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mF0Jy-0000oH-Rz for help-gnu-emacs@gnu.org; Sat, 14 Aug 2021 16:31:59 -0400 Original-Received: from mail.tuxteam.de ([5.199.139.25]:37350) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.90_1) (envelope-from ) id 1mF0Js-00050z-7S for help-gnu-emacs@gnu.org; Sat, 14 Aug 2021 16:31:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:To:Date; bh=qhYPQ5Gm3MUpiMYzbrWlgVZ4TwHP1mckjVgGRC3Wcis=; b=jO4NmpaGIHekf40Q7L8b+pIIVtr2VfVVU62wRfLzxgVeZ7t3o5a8UjCS8mT+cno2zRZesx7kKB5rzKsvL+MOKDdUswkBFH6GFN3wvNE0P9cbz6YXVA91zryDajX0BfS/Mx2AqzNMz557hiHXvEJvsaYUpMM/53uqtKVxSWCqhwed7fTTxefSFFqhwpGoeLXrseKbiNcfDYIHKcMeF8JxDkqe2qGE6zyFMBOazYm4RwNjBZtTsr8Duz2v+fVnKIrtF0YThBeylWLCTLnAPkLhyQoFfX/g35qDrvRDWrPJiGg9KQX5/ivqIih9VlcUphxKssG8dpMjkMpvxWToOPfgnA==; Original-Received: from tomas by mail.tuxteam.de with local (Exim 4.80) (envelope-from ) id 1mF0Jq-0004BF-21 for help-gnu-emacs@gnu.org; Sat, 14 Aug 2021 22:31:50 +0200 Content-Disposition: inline In-Reply-To: <87v9473jsn.fsf@zoho.eu> Received-SPF: pass client-ip=5.199.139.25; envelope-from=tomas@tuxteam.de; helo=mail.tuxteam.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:132545 Archived-At: --4Ckj6UjgE2iN1+kY Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Aug 14, 2021 at 09:31:20PM +0200, Emanuel Berg via Users list for t= he GNU Emacs text editor wrote: > tomas wrote: >=20 > > The metaphor which, for me, did "click" was: lexical binding > > is a binding along "space", dynamic binding along "time". >=20 > Okay, but as for dynamic, isn't that the definition rather > than a metaphor? If you take it too seriously, you end up with a strange time, which goes back and forth and branches. Calls stacks like to do funny things :-/ If you add nonlocal exits (exceptions, setjmp/longjmp, continuations), you are in hot water ;-) Cheers - t --4Ckj6UjgE2iN1+kY Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAmEYKDYACgkQBcgs9XrR2kZ1mwCffaBeAyKHtlj8MTIWi1EDektK wRcAn1GCaefkSrNGPmKY2AHeTDeiECRI =HbpP -----END PGP SIGNATURE----- --4Ckj6UjgE2iN1+kY--