From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp11.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id mFA9EV3g62NZjAAAbAwnHQ (envelope-from ) for ; Tue, 14 Feb 2023 20:26:21 +0100 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp11.migadu.com with LMTPS id iB8VEV3g62PYvQAA9RJhRA (envelope-from ) for ; Tue, 14 Feb 2023 20:26:21 +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 0BC44171FB for ; Tue, 14 Feb 2023 20:26:20 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pS0wF-0002J8-OP; Tue, 14 Feb 2023 14:26:03 -0500 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 1pS0wE-0002BE-9a for guix-patches@gnu.org; Tue, 14 Feb 2023 14:26:02 -0500 Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pS0wD-0005ez-W3 for guix-patches@gnu.org; Tue, 14 Feb 2023 14:26:02 -0500 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pS0wD-0002VE-Pt for guix-patches@gnu.org; Tue, 14 Feb 2023 14:26:01 -0500 X-Loop: help-debbugs@gnu.org Subject: [bug#61214] [PATCH guix-artwork v5] website: posts: Add Dissecting Guix, Part 2: The Store Monad. Resent-From: Simon Tournier Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Tue, 14 Feb 2023 19:26:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 61214 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: 61214@debbugs.gnu.org Cc: "\(" , ludo@gnu.org, mail@cbaines.net, zimoun.toutoune@gmail.com X-Debbugs-Original-To: "( via Guix-patches via" , 61214@debbugs.gnu.org Received: via spool by submit@debbugs.gnu.org id=B.16764027319580 (code B ref -1); Tue, 14 Feb 2023 19:26:01 +0000 Received: (at submit) by debbugs.gnu.org; 14 Feb 2023 19:25:31 +0000 Received: from localhost ([127.0.0.1]:57022 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pS0vj-0002US-AF for submit@debbugs.gnu.org; Tue, 14 Feb 2023 14:25:31 -0500 Received: from lists.gnu.org ([209.51.188.17]:34448) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pS0vh-0002UF-LM for submit@debbugs.gnu.org; Tue, 14 Feb 2023 14:25:29 -0500 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 1pS0vW-0007Pu-8z for guix-patches@gnu.org; Tue, 14 Feb 2023 14:25:18 -0500 Received: from mail-wm1-x336.google.com ([2a00:1450:4864:20::336]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pS0vR-0005Qm-Vp; Tue, 14 Feb 2023 14:25:15 -0500 Received: by mail-wm1-x336.google.com with SMTP id f23-20020a05600c491700b003dff4480a17so1343211wmp.1; Tue, 14 Feb 2023 11:25:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from:from:to:cc:subject:date:message-id :reply-to; bh=iWPPOrB+O1DXLPYTjoyHqD8kpz87pfuqooE6g0WGsCY=; b=lhbJ7PoNEfpIHDLJMG6ChSkX+6lgM/J3ylTjohH2wAJ4JHRY2uQWPx9GkhseUgqzhZ 6PvgtwdghrtAJ6CM1Lkdt5F96YxxS049EM3uzL+CWwNiE0XZNawjgDovujAcPYl9f5eC 9ocqUJmuI5rXxeweIc1vn1KQGwfz6RhJM4k6RNCwzIXFUDN7StLchDSKTZqR2D1DkJfP YnSteGgd7sfayt9hPVX9IAQbvyAnEyYn0V7h8cC6BtjD3QK8//S+dsfXiHdL7C4j5S/2 4lmtj323uqSgYRc9NGa54BW+s5Eq4AYkvZAfctQMwODqUOHfAxl8L9MaudYqODK7u18x FB+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=iWPPOrB+O1DXLPYTjoyHqD8kpz87pfuqooE6g0WGsCY=; b=rcMKypIBa9xIoV6jvBbX12m8aHM97oX3VuCTHcfSmAgQOtb/gS1TGSCnCAwY5XUgo+ +7avhXaUxVj+MLiT1ElgdR9ueNUC1EYLvjsAZl2Cro9PXGwvSwMUQhBwcMUwtAgzs1HE +VmEeBcSgxcZPLqgZFKSOV/md5npXmA992c5IZlS3jT5HVjiDPn7pTbuKDewX+QiPqGB VyGppwzY25M39B2NoZcRkMqDQUvU3Vvn7Z3dDoDMAs5k7bSsND9eUR0BKszIZuYhnONI zss1QwdUKTSfcwOrTrGcbZpb0UPcPNwwFhmil4isGwVhdFs4xcbpFUXQ1avDnj0Uaj9y vY9g== X-Gm-Message-State: AO0yUKXrYzpa94ZivaOraaJbapcZ6Z2RG/4XbNXI9AKdnDzG3TBwJLtc XWeO5o2t0c+YxdEJVhbXISU= X-Google-Smtp-Source: AK7set9bnnVTJX5bA7L/cJQ1qXbnB/5GYdwiEkeFw9TvavMnpDt+Xlj7TOCrxOejpg0NgnUI4a0QZQ== X-Received: by 2002:a05:600c:3caa:b0:3dc:5ae4:c13d with SMTP id bg42-20020a05600c3caa00b003dc5ae4c13dmr25058wmb.4.1676402709520; Tue, 14 Feb 2023 11:25:09 -0800 (PST) Received: from pfiuh07 ([193.48.40.241]) by smtp.gmail.com with ESMTPSA id t15-20020a05600c198f00b003ddc781b1d4sm19410611wmq.33.2023.02.14.11.25.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Feb 2023 11:25:09 -0800 (PST) From: Simon Tournier In-Reply-To: <20230214073314.2651-1-paren@disroot.org> References: <20230201172821.3072-1-paren@disroot.org> <20230214073314.2651-1-paren@disroot.org> Date: Tue, 14 Feb 2023 19:01:46 +0100 Message-ID: <87mt5gyvlh.fsf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=zimon.toutoune@gmail.com; helo=mail-wm1-x336.google.com 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, FREEMAIL_FROM=0.001, 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: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN ARC-Seal: i=1; s=key1; d=yhetil.org; t=1676402781; a=rsa-sha256; cv=none; b=UqWfE8xDxO1LKeB5hnXYheoQxzl4D4WeXXcea1HWtyRtNWv2ImNs3RJdV3u8UcuOYBzKCL 68j8Le8jXrQBePsUYussyXz5AvhYXuMY3lEjFMxFnC51XNz92HRWICdC9mPKWvglVCSDI8 pjUII/T39cP1swQH6V4huYMIogokXz8BA2oSmN+7tsM+ijLtbybNharrorsMXjXUXzhKp4 P0gkEu87hmOFkxRDEX6+UkOvPQHAodtaFdSMAzf2USXpfV9ESw1oi6zUkeerkMhcjaGLBq SDNpcBZ5XnBKQc33d4UkCbxa28S0xXK1irRVV8QEMxB8fEyLbFb9WA05aqGakw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=lhbJ7PoN; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1676402781; h=from:from:sender:sender: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:resent-cc: resent-from:resent-sender:resent-message-id:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=iWPPOrB+O1DXLPYTjoyHqD8kpz87pfuqooE6g0WGsCY=; b=cJP4xC5Q2U5qe2LwTG2vtdXIv+ILjskNPIkvb8vGugpOkTYKUfSnP6mH0mpvxdInjsZkKa Rp3lAmraXnd9CZ0a/6gOpiomIW2JLZFmQ3sT7q50hiBTNbp7qvM98yphNMdXfKsK1L19q5 Jct54yCgM3usmr4145JbAhDvINaa9JCubXLCJCk9M2gfQB4NA8WYMpk8q8T9SfQ8bLre5e Xj9XBcMCBKBuRtHcThVICv058e8d86fvrPY1zMWPdEmMXOXop/YcGhAZzKSm05bzbbXCLy MUxuRffn5z28vKkKlx0hd7ea4ftSGuYAyI+zQyjGX+RPMV+KgIS/fZnF1mjjFg== X-Migadu-Queue-Id: 0BC44171FB X-Migadu-Scanner: scn1.migadu.com Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=lhbJ7PoN; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 0.78 X-Spam-Score: 0.78 X-TUID: xMy2KUO6wp7j Hi, On mar., 14 f=C3=A9vr. 2023 at 07:33, "\( via Guix-patches" via wrote: > +# Yes, No, Maybe So > + > +Let's instead implement another M of functional programming, _`maybe`_ v= alues, > +representing a value that may or may not exist. For instance, there cou= ld be a > +procedure that attempts to pop a stack, returing the result if there is = one, or --^ Typo s/returing/returning Cheers, simon