cppcms-users

[Cppcms-users] strange date time parsing

[<ele...@ex...>]

Hi,

Can someone please explain this?

int main()
{
        booster::locale::generator gen;
        std::locale::global(gen(""));

        std::istringstream is("01_01_2012-05_30_45");
        booster::locale::date_time dt;
        is >> booster::locale::as::ftime("%d_%m_%Y-%H_%M_%S") >> dt;

        std::ostringstream os;
        os << dt;
        std::cout << os.str() << std::endl;

        return 0;
}

The output is:
Dec 25, 2011 5:30:45 AM

Re: [Cppcms-users] strange date time parsing

[<ele...@ex...>]

>         booster::locale::generator gen;
>         std::locale::global(gen(""));
>
>         std::istringstream is("01_01_2012-05_30_45");
>         booster::locale::date_time dt;
>         is >> booster::locale::as::ftime("%d_%m_%Y-%H_%M_%S") >> dt;


it seems like that if i move %Y and the year to start like this:

         std::istringstream is("2012-01_01-05_30_45");
         booster::locale::date_time dt;
         is >> booster::locale::as::ftime("%Y_%d_%m-%H_%M_%S") >> dt;

Then it works.

Is there something im doing wrong?

Re: [Cppcms-users] strange date time parsing

[Lee E. <lee...@gm...>]

it seems the the format of the date and for the parsing do not match in the
second example

On Mon, Jul 9, 2012 at 9:28 AM, <ele...@ex...> wrote:

> >         booster::locale::generator gen;
> >         std::locale::global(gen(""));
> >
> >         std::istringstream is("01_01_2012-05_30_45");
> >         booster::locale::date_time dt;
> >         is >> booster::locale::as::ftime("%d_%m_%Y-%H_%M_%S") >> dt;
>
>
> it seems like that if i move %Y and the year to start like this:
>
>          std::istringstream is("2012-01_01-05_30_45");
>          booster::locale::date_time dt;
>          is >> booster::locale::as::ftime("%Y_%d_%m-%H_%M_%S") >> dt;
>
> Then it works.
>
> Is there something im doing wrong?
>
>
>
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-- 
--
lee
Lee Elenbaas
lee...@gm...

Re: [Cppcms-users] strange date time parsing

[<ele...@ex...>]

> it seems the the format of the date and for the parsing do not match in
> the
> second example
>

Sorry that was just a typo.

see, I fixed it below

> it seems like that if i move %Y and the year to start like this:
>
>          std::istringstream is("2012_01_01-05_30_45");
>          booster::locale::date_time dt;
>          is >> booster::locale::as::ftime("%Y_%d_%m-%H_%M_%S") >> dt;


The problem is still the same. It seems like the time gets parsed properly
everytime but the date does not unless the date is in the format %Y_%d_%m
or %Y_%m-%d

Petr

Re: [Cppcms-users] strange date time parsing

[Artyom B. <art...@ya...>]

See, time parsing is done by ICU library. If it fails to parse such a date, it seems to be
ICU limitation.

Also make sure that correct locale installed into  std::istringstream is;

(If it is set globally should not be a problem)

 
Artyom Beilis
--------------
CppCMS - C++ Web Framework:   http://cppcms.com/
CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/



>________________________________
> From: "ele...@ex..." <ele...@ex...>
>To: Lee Elenbaas <lee...@gm...> 
>Cc: cpp...@li... 
>Sent: Monday, July 9, 2012 10:35 AM
>Subject: Re: [Cppcms-users] strange date time parsing
> 
>> it seems the the format of the date and for the parsing do not match in
>> the
>> second example
>>
>
>Sorry that was just a typo.
>
>see, I fixed it below
>
>> it seems like that if i move %Y and the year to start like this:
>>
>>          std::istringstream is("2012_01_01-05_30_45");
>>          booster::locale::date_time dt;
>>          is >> booster::locale::as::ftime("%Y_%d_%m-%H_%M_%S") >> dt;
>
>
>The problem is still the same. It seems like the time gets parsed properly
>everytime but the date does not unless the date is in the format %Y_%d_%m
>or %Y_%m-%d
>
>Petr
>
>
>------------------------------------------------------------------------------
>Live Security Virtual Conference
>Exclusive live event will cover all the ways today's security and 
>threat landscape has changed and how IT managers can respond. Discussions 
>will include endpoint security, mobile security and the latest in malware 
>threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>_______________________________________________
>Cppcms-users mailing list
>Cpp...@li...
>https://lists.sourceforge.net/lists/listinfo/cppcms-users
>
>
>