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

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#32288: closed (date(1) Produces ISO 8601 it Won't Take Back.)
Date: Mon, 30 Jul 2018 02:01:02 +0000

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Your message dated Sun, 29 Jul 2018 19:00:01 -0700
with message-id <2e1ece68-a91e-6bf9-e6f8-f04433a3ded8 <at> cs.ucla.edu>
and subject line Re: bug#32288: date(1) Produces ISO 8601 it Won't Take Back.
has caused the debbugs.gnu.org bug report #32288,
regarding date(1) Produces ISO 8601 it Won't Take Back.
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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32288: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=32288
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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.

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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 '@'.

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