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Subject: bug#18328: can't say date -d '8pm -0500' though other combos work
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$ date -d '8pm -0500'
date: invalid date =E2=80=988pm -0500=E2=80=99 <--why can't this combo wo=
rk?
$ date -d '20:00 -0500'
=E4=BA=8C 8=E6=9C=88 26 09:00:00 CST 2014
$ date -d 'sun 8pm'
=E6=97=A5 8=E6=9C=88 31 20:00:00 CST 2014
$ date -d '8pm'
=E4=B8=80 8=E6=9C=88 25 20:00:00 CST 2014
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.503 (Entity 5.503) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: =?UTF-8?Q?=E7=A9=8D=E4=B8=B9=E5=B0=BC?= Dan Jacobson <jidanni@HIDDEN> Subject: bug#18328: Acknowledgement (can't say date -d '8pm -0500' though other combos work) Message-ID: <handler.18328.B.14089825184286.ack <at> debbugs.gnu.org> References: <87ppfo36er.fsf@HIDDEN> X-Gnu-PR-Message: ack 18328 X-Gnu-PR-Package: coreutils Reply-To: 18328 <at> debbugs.gnu.org Date: Mon, 25 Aug 2014 16:02:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-coreutils@HIDDEN If you wish to submit further information on this problem, please send it to 18328 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 18328: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D18328 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
X-Loop: help-debbugs@HIDDEN
Subject: bug#18328: can't say date -d '8pm -0500' though other combos work
Resent-From: Assaf Gordon <assafgordon@HIDDEN>
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From: Assaf Gordon <assafgordon@HIDDEN>
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tags 18328 confirmed
retitle 18328 date: '8pm -0500' is invalid (am/pm problem)
stop
(triaging old bugs)
Hello,
On 25/08/14 10:01 AM, 積丹尼 Dan Jacobson wrote:
> $ date -d '8pm -0500'
> date: invalid date ‘8pm -0500’ <--why can't this combo work?
This is indeed a bug (specifically in gnulib's date parsing module,
but easier to track here).
It seems the existence of the "am/pm" string causes the parser
to take a slightly different rule, then reject additional relative
values, unless they have a unit, e.g.:
$ date --debug -d '8pm +5 days'
date: parsed time part: 08:00:00pm
date: parsed relative part: +5 day(s)
[...]
Contrast it with a different (and confusing) rules when there is
no "am/pm", the relative number is always taken as the time zone, e.g.:
$ date --debug -d '8:00 +5 days'
date: parsed time part: 08:00:00 UTC+05
date: parsed relative part: +1 day(s)
date: input timezone: parsed date/time string (+05)
[...]
(from https://bugs.gnu.org/17161#31 )
I hope to get to this bug soon.
-assaf
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[184.68.105.38]) by smtp.googlemail.com with ESMTPSA id l129-v6sm33959759pfc.155.2018.10.19.21.25.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Oct 2018 21:25:02 -0700 (PDT) Subject: Re: bug#18328: can't say date -d '8pm -0500' though other combos work To: =?UTF-8?B?56mN5Li55bC8IERhbiBKYWNvYnNvbg==?= <jidanni@HIDDEN>, 18328 <at> debbugs.gnu.org References: <87ppfo36er.fsf@HIDDEN> From: Assaf Gordon <assafgordon@HIDDEN> Message-ID: <c8968416-98b5-74ba-ffbe-cd49a23b173c@HIDDEN> Date: Fri, 19 Oct 2018 22:25:00 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <87ppfo36er.fsf@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: control 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: -1.0 (-) tags 18328 confirmed retitle 18328 date: '8pm -0500' is invalid (am/pm problem) stop (triaging old bugs) Hello, On 25/08/14 10:01 AM, 積丹尼 Dan Jacobson wrote: > $ date -d '8pm -0500' > date: invalid date ‘8pm -0500’ <--why can't this combo work? This is indeed a bug (specifically in gnulib's date parsing module, but easier to track here). It seems the existence of the "am/pm" string causes the parser to take a slightly different rule, then reject additional relative values, unless they have a unit, e.g.: $ date --debug -d '8pm +5 days' date: parsed time part: 08:00:00pm date: parsed relative part: +5 day(s) [...] Contrast it with a different (and confusing) rules when there is no "am/pm", the relative number is always taken as the time zone, e.g.: $ date --debug -d '8:00 +5 days' date: parsed time part: 08:00:00 UTC+05 date: parsed relative part: +1 day(s) date: input timezone: parsed date/time string (+05) [...] (from https://bugs.gnu.org/17161#31 ) I hope to get to this bug soon. -assaf
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[184.68.105.38]) by smtp.googlemail.com with ESMTPSA id l129-v6sm33959759pfc.155.2018.10.19.21.25.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Oct 2018 21:25:02 -0700 (PDT) Subject: Re: bug#18328: can't say date -d '8pm -0500' though other combos work To: =?UTF-8?B?56mN5Li55bC8IERhbiBKYWNvYnNvbg==?= <jidanni@HIDDEN>, 18328 <at> debbugs.gnu.org References: <87ppfo36er.fsf@HIDDEN> From: Assaf Gordon <assafgordon@HIDDEN> Message-ID: <c8968416-98b5-74ba-ffbe-cd49a23b173c@HIDDEN> Date: Fri, 19 Oct 2018 22:25:00 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <87ppfo36er.fsf@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: control 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: -1.0 (-) tags 18328 confirmed retitle 18328 date: '8pm -0500' is invalid (am/pm problem) stop (triaging old bugs) Hello, On 25/08/14 10:01 AM, 積丹尼 Dan Jacobson wrote: > $ date -d '8pm -0500' > date: invalid date ‘8pm -0500’ <--why can't this combo work? This is indeed a bug (specifically in gnulib's date parsing module, but easier to track here). It seems the existence of the "am/pm" string causes the parser to take a slightly different rule, then reject additional relative values, unless they have a unit, e.g.: $ date --debug -d '8pm +5 days' date: parsed time part: 08:00:00pm date: parsed relative part: +5 day(s) [...] Contrast it with a different (and confusing) rules when there is no "am/pm", the relative number is always taken as the time zone, e.g.: $ date --debug -d '8:00 +5 days' date: parsed time part: 08:00:00 UTC+05 date: parsed relative part: +1 day(s) date: input timezone: parsed date/time string (+05) [...] (from https://bugs.gnu.org/17161#31 ) I hope to get to this bug soon. -assaf
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AG> I hope to get to this bug soon.
Good.
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