GNU bug report logs - #32288
date(1) Produces ISO 8601 it Won't Take Back.

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Package: coreutils;

Reported by: Ralph Corderoy <ralph <at> inputplus.co.uk>

Date: Fri, 27 Jul 2018 11:35:01 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Report forwarded to bug-coreutils <at> gnu.org:
bug#32288; Package coreutils. (Fri, 27 Jul 2018 11:35:01 GMT) Full text and rfc822 format available.
Acknowledgement sent to Ralph Corderoy <ralph <at> inputplus.co.uk>:
New bug report received and forwarded. Copy sent to bug-coreutils <at> gnu.org. (Fri, 27 Jul 2018 11:35:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Ralph Corderoy <ralph <at> inputplus.co.uk>
To: bug-coreutils <at> gnu.org
Subject: date(1) Produces ISO 8601 it Won't Take Back.
Date: Fri, 27 Jul 2018 12:34:11 +0100

Hi,

coreutils 8.29-1 on Arch Linux.

    $ date -uIs -d @-62135596801
    0000-12-31T23:59:59+00:00                           
    $ date -uIs -d @0000-12-31T23:59:59+00:00
    date: invalid date ‘@0000-12-31T23:59:59+00:00’     
    $

If date thinks it's valid ISO 8601 when it outputs it,
I'd expect it to be considered valid input to take back.

Cheers, Ralph.
Reply sent to Paul Eggert <eggert <at> cs.ucla.edu>:
You have taken responsibility. (Mon, 30 Jul 2018 02:01:02 GMT) Full text and rfc822 format available.
Notification sent to Ralph Corderoy <ralph <at> inputplus.co.uk>:
bug acknowledged by developer. (Mon, 30 Jul 2018 02:01:02 GMT) Full text and rfc822 format available.

Message #10 received at 32288-done <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Ralph Corderoy <ralph <at> inputplus.co.uk>, 32288-done <at> debbugs.gnu.org
Subject: Re: bug#32288: date(1) Produces ISO 8601 it Won't Take Back.
Date: Sun, 29 Jul 2018 19:00:01 -0700

On 07/27/2018 04:34 AM, Ralph Corderoy wrote:
>     $ date -uIs -d @-62135596801
>     0000-12-31T23:59:59+00:00                           
>     $ date -uIs -d @0000-12-31T23:59:59+00:00
>     date: invalid date ‘@0000-12-31T23:59:59+00:00’     
>     $
>
> If date thinks it's valid ISO 8601 when it outputs it,
> I'd expect it to be considered valid input to take back.

As it would have, if you had actually given back exactly what you gave
it. But you prepended '@'.
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Mon, 27 Aug 2018 11:24:06 GMT) Full text and rfc822 format available.
This bug report was last modified 6 years and 302 days ago.

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