From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id eF/WKR5tkWDDSAEAgWs5BA (envelope-from ) for ; Tue, 04 May 2021 17:49:50 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id oNt3JR5tkWCTbQAAbx9fmQ (envelope-from ) for ; Tue, 04 May 2021 15:49:50 +0000 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 072D915E48 for ; Tue, 4 May 2021 17:49:50 +0200 (CEST) Received: from localhost ([::1]:36458 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ldxIz-0002qt-6D for larch@yhetil.org; Tue, 04 May 2021 11:49:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49828) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ldxIb-0002qi-1g for guix-devel@gnu.org; Tue, 04 May 2021 11:49:25 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:54474) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ldxIa-000304-2x; Tue, 04 May 2021 11:49:24 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=59860 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1ldxIY-0004hd-Li; Tue, 04 May 2021 11:49:23 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Luis Felipe Subject: Re: What's the meaning of the percent sign in variable names References: <56kdRcoBgRuaTJ3WDZuJafflQQ4gld466rsxEpaHBkAv63kjjShKEEaQyL3n01WgUFyuUHpqLtW9VuZyeV6H4_C6NdB5nXd7BGxYJZ1UbXg=@protonmail.com> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 15 =?utf-8?Q?Flor=C3=A9al?= an 229 de la =?utf-8?Q?R?= =?utf-8?Q?=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Tue, 04 May 2021 17:49:21 +0200 In-Reply-To: <56kdRcoBgRuaTJ3WDZuJafflQQ4gld466rsxEpaHBkAv63kjjShKEEaQyL3n01WgUFyuUHpqLtW9VuZyeV6H4_C6NdB5nXd7BGxYJZ1UbXg=@protonmail.com> (Luis Felipe's message of "Fri, 23 Apr 2021 14:22:54 +0000") Message-ID: <874kfipkhq.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1620143390; 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: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=xsCCkno24GBS58Gb3eCv9m9lEnq+QxPJrt4TTpJo4Cg=; b=YluXn3kPirgrlU0ONDgG/O3zgmpK/MOZauq73E8mapt851H7T9dsia5FrqmBDr9zGoW5mw GiBsYUuuO2uVsoxCQ2CbX+KsqDekujflLQA9ggd6MSAwpHPfBkv1pHn/I9ZLJ4ZSB5by+D o1TzZwajPhwVtcC2NvUbThp7wGYSbp8cfPHgDxLT30wlywXwh5s1elGdXT4ColLIgWsnrL atTKRDEov7J63exL84O5mX2/sqxwubw76WjLqRuhmO171yQALapTL56gX1Ct2PmqKdm1Ng GuJ+BOI/ekugnaiMS25SjJjioHRALB4eK/rs1qpbTIV8A2osDYF3I3qV0kUs1A== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1620143390; a=rsa-sha256; cv=none; b=q03mCKaYG4Zvp4WEY6p6MBBQuta7B1thZNOPrYdaAi5bDGOyiPu8Yz4g5PYnhNEjY+XXIx oUhzqajZo9yrVHZZHIEBoXV44Sl3aKtgec8UIotODdO62qKz8KkAI4u2psbQ9Vfo4iqruv RB8kjG2cDkI8Glh3s0n7SpnTwnDg54mKlmIKjEATCUSOEKhVGZtsKpfNQLcPFlsZnFMXJ4 hBMPD37bSPkZKanBFb2dY5/VTDN4D+3/fRaZv+n0+6xNq5Q/Wl2rq3/8/jtFnOvDOG2ySk 0o7cu0BXpFpgKgN4LvJcltkowWKB8Jkjpv7v8Dbpl0wCqRb/9oR8vRjFs4+YMg== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Spam-Score: -2.96 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: 072D915E48 X-Spam-Score: -2.96 X-Migadu-Scanner: scn0.migadu.com X-TUID: pHy+bgCrza6s Hi Luis! Luis Felipe skribis: > Are all these constants (%base-packages, for example)? Is this a Guix > convention or does it come from Guile? To complement Leo=E2=80=99s answer=E2=80=A6 The =E2=80=98%=E2=80=99 conven= tion comes from Guile, which may have borrowed it from other Schemes. Initially, it was meant to read as =E2=80=9Csys=E2=80=9D (=E2=80=9Csystem=E2=80=9D), as can be seen in= libguile, meaning that a percent-binding somehow belongs to =E2=80=9Cthe system=E2=80=9D: =E2=80=98%= load-path=E2=80=99, =E2=80=98%make-void-port=E2=80=99, =E2=80=98%load-hook=E2=80=99, etc. In Guix it=E2=80=99s used with an extending meaning, typically for variables holding Guixy constants: =E2=80=98%base-packages=E2=80=99, =E2=80=98%setuid= -programs=E2=80=99, =E2=80=98%desktop-services=E2=80=99, etc. I hope it makes some sense! Ludo=E2=80=99.