From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dr Rainer Woitok Newsgroups: gmane.emacs.help Subject: Re: Easy to add with push but not to the end of a list Date: Tue, 29 Nov 2022 13:08:00 +0100 Message-ID: <25477.63008.581520.69804@tux.local> References: <878rju96i5.fsf@dataswamp.org> <87y1ruw4w9.fsf@mbork.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3413"; mail-complaints-to="usenet@ciao.gmane.io" To: tomas@tuxteam.de, help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Nov 29 13:32:37 2022 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 1ozzmu-0000ed-VV for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 29 Nov 2022 13:32:36 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ozzPF-0002sT-Uu; Tue, 29 Nov 2022 07:08:09 -0500 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 ) id 1ozzPE-0002on-71 for help-gnu-emacs@gnu.org; Tue, 29 Nov 2022 07:08:08 -0500 Original-Received: from mail-wm1-x32a.google.com ([2a00:1450:4864:20::32a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ozzPC-0003TP-Be for help-gnu-emacs@gnu.org; Tue, 29 Nov 2022 07:08:07 -0500 Original-Received: by mail-wm1-x32a.google.com with SMTP id r66-20020a1c4445000000b003d05a3775d4so4691628wma.3 for ; Tue, 29 Nov 2022 04:08:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=references:in-reply-to:subject:to:date:message-id :content-transfer-encoding:mime-version:from:from:to:cc:subject:date :message-id:reply-to; bh=PtLRv2qFoBIHp0qSb5MPQ+VQ3TwMlxnR0ZrSkC/nkXU=; b=WxjStXlBeeeXeCriLDQP2bl9CWDj9ibkvhS9qH4aCZloQzZ36Jqb5fB4g2quArxdn6 rDwB1/96mNJIQ+kRvIXuCyIuPSS0MPv3lKJy9aHzAS6gbNWSSw2tnAqWhILilS5OL/+1 hY6ue/zBzI6bSmaAFfUZWuGQpP3hvkxc6VLq2wgUPbcTfFWT6dotbymGxH5x9M9k8dKC J64dGwqpHxCtaJxtcU8FuMwiN1jot1mtRT01vB+/EgAm7UYfIGtW+R3xh6a0CWhGgdRq mEbmGKs+LNs7t9Lkoe4a2IP+fERXcT0j31WBhzqcwthohT8ob5Fjw/eXPA6KbgvQBOpD B/sA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=references:in-reply-to:subject:to:date:message-id :content-transfer-encoding:mime-version:from:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=PtLRv2qFoBIHp0qSb5MPQ+VQ3TwMlxnR0ZrSkC/nkXU=; b=b2brx7UflSUnPn02D+phgvzcxs52RhEoGQ85kGx1qGyftFshwR0cPY4oySlJTQwHbn zpVj9x+PNjZ532EV+79WCS2xXY/INnaANE9Qm4BF0hA42jPg7Ka9zwtnmDuKjhHcoQHc uG6LA9VsQpZAsDbd0HGV3n0aOTK6bUQAxJjGOJVFXdYlwgCSRdUCPZmNP01YMRvjqRhS g3dbR7JEVhp/MPi+sKU9T4HIbXFTTn4bqSLYpZ/1jxR3oItxrYApZx/M3ZLwEQL7Mzlz lAesz1JYmbqA5Xnx0XUyfwpMJ8S4pUwtyWJJ2/hWkO+9taOoY+eThhQov1OwzBLudkWE P9zA== X-Gm-Message-State: ANoB5pk1QQ/LtCwYk5ItOJolICBGENV51HlsU3OqSUEdVGTU5Zp0Gt2o kID7USUpRPr+T07FQ7OM5oY= X-Google-Smtp-Source: AA0mqf7iCMFwc6s/VqaOQoXOdMJzaNSTlQvAd0YUvT38NqVtJij/Uduih1IUnPW6hZZ6Z15G1mSVPw== X-Received: by 2002:a05:600c:4e45:b0:3cf:ceac:94a7 with SMTP id e5-20020a05600c4e4500b003cfceac94a7mr30879627wmq.80.1669723683691; Tue, 29 Nov 2022 04:08:03 -0800 (PST) Original-Received: from gmail.com (p200300df071dd61a5ab495f25597d6fa.dip0.t-ipconnect.de. [2003:df:71d:d61a:5ab4:95f2:5597:d6fa]) by smtp.gmail.com with ESMTPSA id w13-20020adfec4d000000b00241dd5de644sm13494449wrn.97.2022.11.29.04.08.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Nov 2022 04:08:03 -0800 (PST) X-Google-Original-From: Dr Rainer Woitok In-Reply-To: Msg of 2022-11-29 09:44:48 +0100 from tomas@tuxteam.de X-Mailer: VM 8.0.12-devo-585 under 21.5 (beta34) "kale" XEmacs Lucid (x86_64-pc-linux) Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=rainer.woitok@gmail.com; helo=mail-wm1-x32a.google.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 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, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.258, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:141240 Archived-At: Tomas, On Tuesday, 2022-11-29 09:44:48 +0100, you wrote: > ... > There are big precedents out there (cf. for example Donald Knuth's > WEB for TeX and METAFONT; it seems to have been in the air for > some time -- vestiges of that can be found in the shells (if -- fi, > case -- esac and so on; pity Lisp must have been a tad early; > otherwise we might have car -- rac, definitely a better sound than > cdr). While this would be feasible for these two functions, it wouldn't work for "caddr" and ilk :-) I faintly remember discussions back in the early seventies to replace "car" and "cdr" (which originally stood for "Contents of Address Regis- ter" and "Contents of Decrement Register", respectively, and referred to machine instructions on some then modern PDP hardware which were used to access the two pointers of a cons) with "fst" and "rst" (for "first" and "rest", respectively) which could even be nicely combined to "frrst" and similar. But this proposal never made it :-( Sincerely, Rainer