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List:       perl-datetime
Subject:    Re: RFC: DateTime::Format::Natural and "date_only" option
From:       Shane McCarron <shane () aptest ! com>
Date:       2009-05-30 23:59:13
Message-ID: 4A21C851.8010906 () aptest ! com
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I would also mention that, at least this year, there are timezones such 
as in Egypt that have no time 00:00:00 on the day when the clocks move 
ahead - their timezone definition goes from 23:59:59 to 01:00:00 on that 
day.

Steven Schubiger wrote:
> DateTime::Format::Natural currently does calculate its dates and times
> with an initial DateTime object received by "DateTime->now" (with timezone
> support). As a consequence thereof, many resulting final DateTime objects
> within DateTime::Format::Natural will retain for units that have not been
> altered the initial values.
>
> Clayton L. Scott suggested to introduce a "date_only" option, which would
> ignore (or reset) the time part for date-only strings. I intend to provide
> the names of the units to reset through according metadata entries in the
> grammar class. Later when post-processing data, the units would be resetted.
>
> Some examples from the adjusted and yet unreleased tests:
>
>  * 27/5/1979
>      (without date_only: 27.05.1979 01:13:00) 
>         (with date_only: 27.05.1979 00:00:00)
>  * yesterday    
>      (without date_only: 23.11.2006 01:13:08)
>         (with date_only: 23.11.2006 00:00:00)
>  * next hour
>      (without date_only: 24.11.2006 02:13:08)
>         (with date_only: 24.11.2006 02:00:00)
>  * sunday 11:00 
>      (without date_only: 26.11.2006 11:00:08) 
>         (with date_only: 26.11.2006 11:00:00)
>
> As mentioned above, I concur that it is worthwhile to implement (i.e.,
> set the option per default and leave it open to the user to disable it),
> but I'm a bit unsure that "date_only" is the most suitable name for this
> new constructor option (given that it does not always reset just all time
> components).
>
> Suggestions and ideas welcome.
>
> Thanks,
>   

-- 
Shane P. McCarron                          Phone: +1 763 786-8160 x120
Managing Director                            Fax: +1 763 786-8180
ApTest Minnesota                            Inet: shane@aptest.com



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