From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp10.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id 8IxvJ7HI6mGvOAEAgWs5BA (envelope-from ) for ; Fri, 21 Jan 2022 15:52:33 +0100 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp10.migadu.com with LMTPS id kDcYILHI6mFIuAAAG6o9tA (envelope-from ) for ; Fri, 21 Jan 2022 15:52:33 +0100 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 3A08E2F037 for ; Fri, 21 Jan 2022 15:52:33 +0100 (CET) Received: from localhost ([::1]:36584 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nAvHE-0004RK-Bi for larch@yhetil.org; Fri, 21 Jan 2022 09:52:32 -0500 Received: from eggs.gnu.org ([209.51.188.92]:45934) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nAuRz-0001vc-4c for guix-devel@gnu.org; Fri, 21 Jan 2022 08:59:35 -0500 Received: from mail-4317.proton.ch ([185.70.43.17]:40218) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nAuRw-0007es-7s; Fri, 21 Jan 2022 08:59:34 -0500 Date: Fri, 21 Jan 2022 13:59:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lendvai.name; s=protonmail3; t=1642773551; bh=r3QZGexCqv6uhB1uPY7/HfrZh2EADTsOFvYvrfK2s54=; h=Date:To:From:Cc:Reply-To:Subject:Message-ID:In-Reply-To: References:From:To:Cc; b=jEGOscV52q92lCJb0w1jpOFbTiN0XCGnXn+Utuy2D+pvMIkgpvzjbOgyuplA5DVX0 5I295ptDoM2ktlfMulU3n4QYZlGA0VZGlX0i/d0agaxnR2bEDXQOSsW+fsXULpYNUu qOdo7X2x0TQkKUO+0nzUd7dmV/DkJSGb6ey1Dst9iWt8OGCyZmu7a086BJZtTPiw6r byK7OFWvyqxuFhTrfEoXyZ/I2w3ReYjVqSByAkxzacgNdS1e1feYKpQOtMc3b59rLY Q5EKO9P+Hl7WR0qA/b3Uskxs6/S7fBDmCKW00y/cNB5/LdUtoNcoLp/2yI8Nq9IVis 27Y5zSzbJUe/A== To: =?utf-8?Q?Ludovic_Court=C3=A8s?= From: Attila Lendvai Subject: Re: using an SRFI that is not available in Guile Message-ID: In-Reply-To: <87o848aua9.fsf@gnu.org> References: <6vmHCdZdAWsjqvLgmVNEZclQ-JbdRJLfGzLNphX3EbevcslD-_TkMuHA1MwIylOfbe3DkDXYCbx5WT_Q44sC1Qed5MsBUg2xxZKhUbChGGs=@lendvai.name> <87iluhf5ci.fsf@gnu.org> <87o848aua9.fsf@gnu.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=185.70.43.17; envelope-from=attila@lendvai.name; helo=mail-4317.proton.ch 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: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Attila Lendvai Cc: guix-devel Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1642776753; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=r3QZGexCqv6uhB1uPY7/HfrZh2EADTsOFvYvrfK2s54=; b=Vootn3BkOnO5vAKI1ZLNliyIHkDc977HRoAoVkCyX1qBWAiBpsHQaK+3h0mG/Y7MAfkKat oxIeejTfio68iRTA0Yq04HtWHiCggrBQ05aTRDPASKqkrGXkcgv7wyL4ROchshAbtlOHF5 d7o4BfYxgGh0Yk5ApaBphE6armn4WIVru2eCUA0WuUnSvQZtgIkA1jagjT3m3xMwU48SjK gXQuf5jLkiQSNksyZ6ELnc4IdF+PLhRP9h095YSq/dSBR+ypwzg3BjpG4rUWbtxj8Q21/I 6rqqn05xhc/ZcGj7x3vSq4+OUGzrwFKfQDrPETgVSW1cy0R/ExEMTTQQv9a6ZA== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1642776753; a=rsa-sha256; cv=none; b=Z4RmGKmkhfS2o1yp9SkWO4nhhHcumN+UO2h6EZSzWG3GJrLSmdOzLr8i+EzuY3sCgfmXjb fsoMPVjSxl1SD8vipIvQ6xkr9DsOVpyf1mA+vgUCOTlbKLE2VQod7KBSq7yiKwRywRMOPe nU/eJMaRduhjE0ROHAjZS0zzwBTU6HNx8fy/ghP0gPsXW1pjIf5PuIgG+q9WRnnAQqiprR MfTvyyJbSfTrscGoYxSTcszEqIyia+43Q3o1/49V2JcDOh1cD0DclkRkSCjms2VJEcRdbt BJNdToVScb9E6D3geDDwTGlQlEbTcJteNEum++RdIvuCH1y3oHENwJdLqzVepw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=lendvai.name header.s=protonmail3 header.b=jEGOscV5; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -3.82 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=lendvai.name header.s=protonmail3 header.b=jEGOscV5; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 3A08E2F037 X-Spam-Score: -3.82 X-Migadu-Scanner: scn1.migadu.com X-TUID: roHS1MqNDbdt > How about using =E2=80=98*unspecified*=E2=80=99 in those cases? hrm, that looks interesting, thanks! i'll try using that first. it's Guile-specific, but then most of the rest of Guix is... > Out of curiosity, in what case do you need to represent =E2=80=9Cunset fi= elds=E2=80=9D? i think an example works better here: consider Swarm, a p2p storage solution. its node implementation is called Bee. bees can join swarms. there are some well-known swarms: 'testnet' and 'mainnet'. when someone specifies the swarm field as a symbol naming one of the well-known swarms, then some other mandatory fields should default to the appropriate values derived from it, *and* the service should warn if those fields are also set by the user. and when one is joining a custom swarm, as per giving a string name in the swarm field, then the service should warn when these mandatory fields are not explicitly specified. -- =E2=80=A2 attila lendvai =E2=80=A2 PGP: 963F 5D5F 45C7 DFCD 0A39 -- =E2=80=9CWe read the world wrong and say that it deceives us.=E2=80=9D =09=E2=80=94 Rabindranath Thakur, aka Tagore (1861=E2=80=931941)