From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#72570: 31.0.50; Regression in date-to-time Date: Mon, 12 Aug 2024 16:26:24 +0300 Message-ID: <86v805hny7.fsf@gnu.org> References: <86zfpige7k.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3656"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 72570@debbugs.gnu.org, eggert@cs.ucla.edu To: Ulrich Mueller Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Aug 12 15:27:45 2024 Return-path: Envelope-to: geb-bug-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 1sdV5N-0000l5-8C for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 12 Aug 2024 15:27:45 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sdV5A-0002Db-3R; Mon, 12 Aug 2024 09:27:32 -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 ) id 1sdV58-0002DP-QF for bug-gnu-emacs@gnu.org; Mon, 12 Aug 2024 09:27:30 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sdV58-0006z9-Fs for bug-gnu-emacs@gnu.org; Mon, 12 Aug 2024 09:27:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debbugs.gnu.org; s=debbugs-gnu-org; h=References:In-Reply-To:From:Date:To:Subject; bh=NuwkKo3gcE+wpqjeEj3ejgPWRTJlbX/xNP/uyNI9wYg=; b=I1GQR61xSmZ3vzXW2wWCwwtD7acURLiK7C7BvQtsw4zy0otFr2c3JgXsNX69L3kiTZTMVXND2st70E1J6OOLyTOwW3xFNMvLaSwPeXEumxTt0enrtcpro+KD355q4SbCqhgaR+eZUZ0cFS8oNl5MyweKb4taQnoN/+7ORsVb5lcIhuBVei9BjJgj9HdjStUwSBZd4FESfweO8b+3iRTEBxwvnwf66cwfrRUqDpmeN2V7JrWYKTjO4hKRjHTzDwuEIzeoeMkHaumWoN0C+Pq9F3dqmKs50YY0EIpoEKzRg8c9ke4BfBvg9b0GHp6YuFeuvZS0hdDH8ysigfZICNdHdg==; Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1sdV5e-0004zc-5u for bug-gnu-emacs@gnu.org; Mon, 12 Aug 2024 09:28:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 12 Aug 2024 13:28:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 72570 X-GNU-PR-Package: emacs Original-Received: via spool by 72570-submit@debbugs.gnu.org id=B72570.172346922819089 (code B ref 72570); Mon, 12 Aug 2024 13:28:02 +0000 Original-Received: (at 72570) by debbugs.gnu.org; 12 Aug 2024 13:27:08 +0000 Original-Received: from localhost ([127.0.0.1]:42659 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1sdV4l-0004xp-Pv for submit@debbugs.gnu.org; Mon, 12 Aug 2024 09:27:08 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:49142) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1sdV4i-0004xP-Tf for 72570@debbugs.gnu.org; Mon, 12 Aug 2024 09:27:05 -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 ) id 1sdV46-0006sS-Me; Mon, 12 Aug 2024 09:26:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=NuwkKo3gcE+wpqjeEj3ejgPWRTJlbX/xNP/uyNI9wYg=; b=cDeVzN3PMzGC HTVq2dskZz7iXm6BhVPxexRgi7s+ZIGgK1rd27yIAlEhqzU/3vjVif3OB5Gi/+K5nf5Z9xTI6YctE wzlZr9H/osyMmzyvYi3ZCVGFl53cp36NhfP1goWZSCFdzqT5Wig+Zy3pGXdwVh+N45Tzu2wsRP3sM 8STeMgosTQwLt1bufOQ+zintJj9HAnufrP9WmGTphkKAnObMGXVfzNDcZRILUivp1oBA3rj0MA22g 4+neS2feqFC7OdQygfUEI++m+dPWwvbDL1N080Mrppwww6dHSc1PBxYbVnPWJ6834HbtS4v3ldvpM L6PNXr2sc0/Zo4Vudne/0w==; In-Reply-To: (message from Ulrich Mueller on Mon, 12 Aug 2024 14:51:02 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:290049 Archived-At: > From: Ulrich Mueller > Cc: Paul Eggert , 72570@debbugs.gnu.org > Date: Mon, 12 Aug 2024 14:51:02 +0200 > > > But that is not necessarily incorrect, because several time-conversion > > functions, including those involved in this issue, don't document > > their assumptions about time-zone when it is omitted. This includes > > parse-time-string and iso8601-parse. Since these functions don't > > document this aspect, and the code involved in the above snippet is > > quite convoluted, it is hard for me to decide which part of what > > function needs to be fixed. > > Well, parse-time-string doesn't make any assumptions about the timezone. > It will return a list with nil in its TZ element, if it cannot extract > any timezone info from the string. > > Same for iso8601-parse, the returned TZ is nil if it is not present in > the argument string. Yes, but what does nil as timezone mean, when you later interpret the time values? Is it UTC or is it local time?