General Purpose Date Script Post: 302868049

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Top Forums UNIX for Beginners Questions & Answers General Purpose Date Script Post 302868049 by Corona688 on Friday 25th of October 2013 05:33:57 PM

10-25-2013

Registered User

Bug noted, thank you a lot, I had --date "something" when I should have done --date="something".

Thanks for reminding me about the +syntax feature, which I'd planned but forgotten.

Date math is not hard here, I am letting mktime handle absolutely everything tricky. I do not need to know when the next leap year is, I subtract 1 from the 'year' value and let mktime decide what that is.

Yes yes I know that Perl has about 37 different date modules I could be using. But if I'm going to tell someone to install 'Perl::MyFavoriteDateModule' I might as well just tell them to install GNU date. The whole point is to not do that, (and to show elegant Perl code is possible without including the kitchen sink).

Some of those tests are just weird though. I have no idea how you got 23 hours from subtracting days, it certainly doesn't happen here. I may have done something odd with a last-minute fix when I posted. [edit] Now I know. It happened because of the --date vs --date= problem. Perl does strange things when you do arithmetic on strings.

Anyway, I'll incorporate your suggestions and repost. Thanks again. [edit] Version 2 is now in the OP.

Last edited by Corona688; 10-25-2013 at 06:57 PM..

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LEARN ABOUT DEBIAN

mojo::date

Mojo::Date(3pm) 					User Contributed Perl Documentation					   Mojo::Date(3pm)

NAME

       Mojo::Date - HTTP 1.1 date container

SYNOPSIS

	 use Mojo::Date;

	 my $date = Mojo::Date->new(784111777);
	 my $http_date = $date->to_string;
	 $date->parse('Sun, 06 Nov 1994 08:49:37 GMT');
	 my $epoch = $date->epoch;

DESCRIPTION

       Mojo::Date implements HTTP 1.1 date and time functions according to RFC 2616.

	 Sun, 06 Nov 1994 08:49:37 GMT	; RFC 822, updated by RFC 1123
	 Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
	 Sun Nov  6 08:49:37 1994	; ANSI C's asctime() format

ATTRIBUTES

       Mojo::Date implements the following attributes.

   "epoch"
	 my $epoch = $date->epoch;
	 $date	   = $date->epoch(784111777);

       Epoch seconds.

METHODS

       Mojo::Date inherits all methods from Mojo::Base and implements the following new ones.

   "new"
	 my $date = Mojo::Date->new;
	 my $date = Mojo::Date->new($string);

       Construct a new Mojo::Date object.

   "parse"
	 $date = $date->parse('Sun Nov	6 08:49:37 1994');

       Parse date in one of the following formats.

	 - Epoch format(784111777)
	 - RFC 822/1123 (Sun, 06 Nov 1994 08:49:37 GMT)
	 - RFC 850/1036 (Sunday, 06-Nov-94 08:49:37 GMT)
	 - ANSI C asctime() (Sun Nov  6 08:49:37 1994)

   "to_string"
	 my $string = $date->to_string;

       Render date suitable for HTTP 1.1 messages.

SEE ALSO

       Mojolicious, Mojolicious::Guides, <http://mojolicio.us>.

perl v5.14.2							    2012-09-05							   Mojo::Date(3pm)