Paul Eggert <eggert@HIDDEN>
to control <at> debbugs.gnu.org.
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Wed, 15 Dec 2021 22:24:24 +0000 Received: from BN7PR08MB5571.namprd08.prod.outlook.com ([fe80::89e8:b704:e362:74a3]) by BN7PR08MB5571.namprd08.prod.outlook.com ([fe80::89e8:b704:e362:74a3%3]) with mapi id 15.20.4778.018; Wed, 15 Dec 2021 22:24:24 +0000 Date: Wed, 15 Dec 2021 17:24:22 -0500 From: Mike Marchywka <marchywka@HIDDEN> To: Paul Eggert <eggert@HIDDEN>, 52525 <at> debbugs.gnu.org Subject: Re: bug#52525: wanted to add option to date command to handle pure numeric input in varying ways and output for invalid dates Message-ID: <BN7PR08MB5571AD57FD9BC07A753CD48DBE769@HIDDEN> References: <BN7PR08MB5571CCE76CB62D8DD9A31CCEBE769@HIDDEN> <BN7PR08MB55717506A5B39838E986288BBE769@HIDDEN> <e716cd77-7d02-24da-ed12-55159501cf67@HIDDEN> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <e716cd77-7d02-24da-ed12-55159501cf67@HIDDEN> User-Agent: NeoMutt/20171215 X-TMN: [hc18PT/HYE2Any08djaG/jhwUdY4wwGF] X-ClientProxiedBy: BN0PR04CA0202.namprd04.prod.outlook.com (2603:10b6:408:e9::27) To BN7PR08MB5571.namprd08.prod.outlook.com (2603:10b6:408:3d::26) X-Microsoft-Original-Message-ID: <20211215222422.emg5loyatl2sirze@happy> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 8aee835b-43ec-4580-c3ff-08d9c019a5eb X-MS-TrafficTypeDiagnostic: BN8PR08MB6226:EE_ X-Microsoft-Antispam: BCL:0; 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The idea is to avoid > adding features if they can easily be > implemented with some other standard utility. > This way, you can write your shell scripts now > rather than waiting for a future fix (plus, it > keeps 'date' simpler). > > echo 2000 | sed 's/$/-07-01/' | date +%Y -f- > That is great until the input format is YYYY-MM-DD :) The point of using date was to get all the internal stuff that deals with ambiguous formats and probably a lot of other people do that too. The info documentation does point out how ambiguous the human readable dates are. I guess 2000 could also be ms since epoch. I am calling date from c++ and could just ias easily wrap it in another c++ program to deal with this but thought it was of more general interest and I did not want to make another kluge. Generally I agree with your approach but if date is going to be a swiss army knife for date conversions it makes some sense to allow user selection of ambiguity resolution doesn't it? Thanks. -- mike marchywka 306 charles cox canton GA 30115 USA, Earth marchywka@HIDDEN 404-788-1216 ORCID: 0000-0001-9237-455X
bug-coreutils@HIDDEN:bug#52525; Package coreutils.
Full text available.Received: (at 52525) by debbugs.gnu.org; 15 Dec 2021 22:37:56 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Dec 15 17:37:56 2021 Received: from localhost ([127.0.0.1]:33939 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1mxcuJ-0001pB-RZ for submit <at> debbugs.gnu.org; Wed, 15 Dec 2021 17:37:55 -0500 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:45032) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1mxcuH-0001ov-W7 for 52525 <at> debbugs.gnu.org; Wed, 15 Dec 2021 17:37:54 -0500 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id B694916010D; Wed, 15 Dec 2021 14:37:47 -0800 (PST) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 38C038bG968R; Wed, 15 Dec 2021 14:37:47 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 1834716011C; Wed, 15 Dec 2021 14:37:47 -0800 (PST) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id rhZI-9KrqY30; Wed, 15 Dec 2021 14:37:47 -0800 (PST) Received: from [192.168.1.9] (cpe-172-91-119-151.socal.res.rr.com [172.91.119.151]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id E46A616010D; Wed, 15 Dec 2021 14:37:46 -0800 (PST) Message-ID: <31bc1621-8c99-9f47-2dab-1034505ff7f0@HIDDEN> Date: Wed, 15 Dec 2021 14:37:46 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.1 Content-Language: en-US To: Mike Marchywka <marchywka@HIDDEN>, 52525 <at> debbugs.gnu.org References: <BN7PR08MB5571CCE76CB62D8DD9A31CCEBE769@HIDDEN> <BN7PR08MB55717506A5B39838E986288BBE769@HIDDEN> <e716cd77-7d02-24da-ed12-55159501cf67@HIDDEN> <BN7PR08MB5571AD57FD9BC07A753CD48DBE769@HIDDEN> From: Paul Eggert <eggert@HIDDEN> Organization: UCLA Computer Science Department Subject: Re: bug#52525: wanted to add option to date command to handle pure numeric input in varying ways and output for invalid dates In-Reply-To: <BN7PR08MB5571AD57FD9BC07A753CD48DBE769@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -2.4 (--) X-Debbugs-Envelope-To: 52525 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.4 (---) On 12/15/21 14:24, Mike Marchywka wrote: > if date is > going to be a swiss army knife for date conversions > it makes some sense to allow user selection of > ambiguity resolution doesn't it? There are thousands of possible data conversions and I'm not sure we want to head down the road of trying to handle them all. That being said, this particular conversion might be worth the trouble. However, 'date' uses the same date parser that a lot of other GNU programs do. Surely if there's a change to be made to date parsing it should be made there, not just to 'date', so that all the other programs can use the new functionality.
bug-coreutils@HIDDEN:bug#52525; Package coreutils.
Full text available.Received: (at 52525) by debbugs.gnu.org; 15 Dec 2021 22:09:40 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Dec 15 17:09:40 2021 Received: from localhost ([127.0.0.1]:33903 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1mxcSy-0007Lk-4O for submit <at> debbugs.gnu.org; Wed, 15 Dec 2021 17:09:40 -0500 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:41570) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1mxcSv-0007LV-9j for 52525 <at> debbugs.gnu.org; Wed, 15 Dec 2021 17:09:39 -0500 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 2896E16010D; Wed, 15 Dec 2021 14:09:31 -0800 (PST) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id FekGfbtFjJyP; Wed, 15 Dec 2021 14:09:30 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 7B78916011F; Wed, 15 Dec 2021 14:09:30 -0800 (PST) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id c67EuH-A8_5k; Wed, 15 Dec 2021 14:09:30 -0800 (PST) Received: from [192.168.1.9] (cpe-172-91-119-151.socal.res.rr.com [172.91.119.151]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 53D3A16010D; Wed, 15 Dec 2021 14:09:30 -0800 (PST) Message-ID: <e716cd77-7d02-24da-ed12-55159501cf67@HIDDEN> Date: Wed, 15 Dec 2021 14:09:29 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.1 Subject: Re: bug#52525: wanted to add option to date command to handle pure numeric input in varying ways and output for invalid dates Content-Language: en-US To: Mike Marchywka <marchywka@HIDDEN> References: <BN7PR08MB5571CCE76CB62D8DD9A31CCEBE769@HIDDEN> <BN7PR08MB55717506A5B39838E986288BBE769@HIDDEN> From: Paul Eggert <eggert@HIDDEN> Organization: UCLA Computer Science Department In-Reply-To: <BN7PR08MB55717506A5B39838E986288BBE769@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -2.4 (--) X-Debbugs-Envelope-To: 52525 Cc: 52525 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.4 (---) On 12/15/21 12:39, Mike Marchywka wrote: > $echo 2000 | date +%Y -f- > 2021 How about this instead? The idea is to avoid adding features if they can easily be implemented with some other standard utility. This way, you can write your shell scripts now rather than waiting for a future fix (plus, it keeps 'date' simpler). echo 2000 | sed 's/$/-07-01/' | date +%Y -f-
bug-coreutils@HIDDEN:bug#52525; Package coreutils.
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Wed, 15 Dec 2021 20:39:04 +0000 From: Mike Marchywka <marchywka@HIDDEN> To: "bug-coreutils@HIDDEN" <bug-coreutils@HIDDEN> Subject: wanted to add option to date command to handle pure numeric input in varying ways and output for invalid dates Thread-Topic: wanted to add option to date command to handle pure numeric input in varying ways and output for invalid dates Thread-Index: AQHX8fPMhndG5Ke4MUuKs6qvFhRRKg== Date: Wed, 15 Dec 2021 20:39:04 +0000 Message-ID: <BN7PR08MB55717506A5B39838E986288BBE769@HIDDEN> References: <BN7PR08MB5571CCE76CB62D8DD9A31CCEBE769@HIDDEN> In-Reply-To: <BN7PR08MB5571CCE76CB62D8DD9A31CCEBE769@HIDDEN> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: suggested_attachment_session_id: cc4b3764-b2f7-ba5e-ff9b-ddcbd79ae05f x-ms-exchange-messagesentrepresentingtype: 1 x-tmn: [nbbEWNqPErXDQ6oEbnaZBucmhZzitzIj] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: a86bc55b-7823-45da-4ae5-08d9c00aef37 x-ms-traffictypediagnostic: BN7PR08MB4435:EE_ x-microsoft-antispam: BCL:0; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-4755-11-msonline-outlook-c65ed.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN7PR08MB5571.namprd08.prod.outlook.com X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: a86bc55b-7823-45da-4ae5-08d9c00aef37 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Dec 2021 20:39:04.4930 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PR08MB4435 Received-SPF: pass client-ip=40.92.19.89; envelope-from=marchywka@HIDDEN; helo=NAM11-DM6-obe.outbound.protection.outlook.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, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Wed, 15 Dec 2021 16:57:28 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.3 (--) I'm trying to implement the options shown below. I downloaded the coreutils= source=0A= for my distro and don't expect a problem compling and implementing it.=0A= However, is there any interest in adding similar functions to the main code= ?=0A= =0A= I would imagine something like,=0A= =0A= date --option=3Dfour-digits-are-YYYY,invalid-output-blank-line =0A= =0A= My immediate concern is getting this to take the input as a year rather tha= n HHMM and=0A= it would be easier to make date more versatile than put logic around it,=0A= =0A= $echo 2000 | date +%Y -f-=0A= 2021=0A= =0A= not sure if anyone else would want that.=0A= =0A= Thanks. =0A= =0A= =0A= =0A= =A0Mike Marchywka=A0=0A= 306 Charles Cox Drive=A0=0A= Canton, GA 30115=0A= 470-758-0799=0A= 404-788-1216=A0=0A= =0A= =0A= =0A= =0A= ________________________________________=0A= From: Mike Marchywka=0A= Sent: Wednesday, December 15, 2021 2:08 PM=0A= To: coordinator@HIDDEN=0A= Subject: the ubuntu "date" command info pointed me to you, question on modi= fication=0A= =0A= I wanted to add an option to the linux date command to=0A= deal with pure number date stings - allowing for a 4 digit number=0A= to be a year instead of HHMM - which should be easy=0A= for me to do but I wanted to see how it integrates.=0A= Also, I wanted an output option, that I could write, to=0A= send an invalid message to stdout instead of stderr.=0A= =0A= How should I proceed?=0A= =0A= Thanks.=0A= =0A= =0A= Mike Marchywka=0A= 306 Charles Cox Drive=0A= Canton, GA 30115=0A= 470-758-0799=0A= 404-788-1216=0A= =0A= =0A=
Mike Marchywka <marchywka@HIDDEN>:bug-coreutils@HIDDEN.
Full text available.bug-coreutils@HIDDEN:bug#52525; Package coreutils.
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