From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Arash Esbati <arash@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: Question about cl-flet and cl-letf
Date: Tue, 31 Oct 2023 10:38:33 +0100
Message-ID: <m2o7gfgmhy.fsf@macmutant.fritz.box>
References: <m2edhh6t74.fsf@macmutant.fritz.box> <87pm11aw56.fsf@web.de>
 <m25y2qh2wo.fsf@macmutant.fritz.box> <87msw2gu99.fsf@web.de>
 <ZT35fPOXxmJmvSD0@tuxteam.de>
Mime-Version: 1.0
Content-Type: text/plain
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="34443"; mail-complaints-to="usenet@ciao.gmane.io"
User-Agent: Gnus/5.13 (Gnus v5.13)
Cc: help-gnu-emacs@gnu.org
To: <tomas@tuxteam.de>
Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Oct 31 10:39:28 2023
Return-path: <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>
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 <help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org>)
	id 1qxlDb-0008or-Lm
	for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 31 Oct 2023 10:39:27 +0100
Original-Received: from localhost ([::1] helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <help-gnu-emacs-bounces@gnu.org>)
	id 1qxlCp-0006KY-4w; Tue, 31 Oct 2023 05:38:39 -0400
Original-Received: from eggs.gnu.org ([2001:470:142:3::10])
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <arash@gnu.org>) id 1qxlCn-0006J6-GF
 for help-gnu-emacs@gnu.org; Tue, 31 Oct 2023 05:38:37 -0400
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e])
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <arash@gnu.org>)
 id 1qxlCn-00054N-48; Tue, 31 Oct 2023 05:38:37 -0400
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org;
 s=fencepost-gnu-org; h=MIME-Version:Date:References:In-Reply-To:Subject:To:
 From; bh=XO+7tHb7OlEtsVk7ffIqlL7H24UWu9xZAaO23WntVD0=; b=GfmViHiRT9nB4hDAzGej
 ClHexJge1aGATHKO4CtGxiXz9YTSdD5VwE0co1rYQkZ9Eb0k8ldk/jJR3JmvqbTj8HfIaC6mEG8R8
 wmuwuX8q7AwRiL3YR4TXn0GlR5ZeHvNmfePieb9CKVOM/AMn8zwnIijOUqES5NOGszwNKhU7x1Pnh
 VeVwl9kclR7Vh1cjlT7fWkPeYBOfLuL0RaL7ACYUUaweqAEWs1/L7G+kOHhYbAEoQjn3jOPu6/iIv
 VNVhEYjalxGvgdxNzFkpm8wZtKV55hQOFCeBipFzUVolDrDteV724A80byak+rRK+dVMifJ4eA+Ds
 72U/SfefeVCP1w==;
In-Reply-To: <ZT35fPOXxmJmvSD0@tuxteam.de> (tomas@tuxteam.de's message of
 "Sun, 29 Oct 2023 07:19:40 +0100")
X-BeenThere: help-gnu-emacs@gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Users list for the GNU Emacs text editor <help-gnu-emacs.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/help-gnu-emacs>,
 <mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/help-gnu-emacs>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/help-gnu-emacs>,
 <mailto:help-gnu-emacs-request@gnu.org?subject=subscribe>
Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org
Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org
Xref: news.gmane.io gmane.emacs.help:145434
Archived-At: <http://permalink.gmane.org/gmane.emacs.help/145434>

<tomas@tuxteam.de> writes:

> It can be confusing. Look at it this way: y-or-no-p is most probably
> not called directly in your (while ...) construct (which is a
> special form) but from some functions called from there.
>
> So it's not in your lexical environment, but on somewhere else's.
> So a dynamic binding does the trick.

Thanks for your response.  Now I grok what's happening.

Best, Arash