89 lines
2.5 KiB
Perl
89 lines
2.5 KiB
Perl
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package Time::gmtime;
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use strict;
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use Time::tm;
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BEGIN {
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use Exporter ();
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use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $VERSION);
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@ISA = qw(Exporter Time::tm);
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@EXPORT = qw(gmtime gmctime);
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@EXPORT_OK = qw(
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$tm_sec $tm_min $tm_hour $tm_mday
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$tm_mon $tm_year $tm_wday $tm_yday
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$tm_isdst
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);
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%EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] );
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$VERSION = 1.01;
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}
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use vars @EXPORT_OK;
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sub populate (@) {
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return unless @_;
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my $tmob = Time::tm->new();
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@$tmob = (
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$tm_sec, $tm_min, $tm_hour, $tm_mday,
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$tm_mon, $tm_year, $tm_wday, $tm_yday,
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$tm_isdst )
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= @_;
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return $tmob;
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}
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sub gmtime (;$) { populate CORE::gmtime(@_ ? shift : time)}
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sub gmctime (;$) { scalar CORE::gmtime(@_ ? shift : time)}
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1;
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__END__
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=head1 NAME
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Time::gmtime - by-name interface to Perl's built-in gmtime() function
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=head1 SYNOPSIS
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use Time::gmtime;
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$gm = gmtime();
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printf "The day in Greenwich is %s\n",
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(qw(Sun Mon Tue Wed Thu Fri Sat Sun))[ gm->wday() ];
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use Time::gmtime w(:FIELDS;
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printf "The day in Greenwich is %s\n",
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(qw(Sun Mon Tue Wed Thu Fri Sat Sun))[ gm_wday() ];
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$now = gmctime();
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use Time::gmtime;
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use File::stat;
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$date_string = gmctime(stat($file)->mtime);
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=head1 DESCRIPTION
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This module's default exports override the core gmtime() function,
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replacing it with a version that returns "Time::tm" objects.
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This object has methods that return the similarly named structure field
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name from the C's tm structure from F<time.h>; namely sec, min, hour,
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mday, mon, year, wday, yday, and isdst.
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You may also import all the structure fields directly into your namespace
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as regular variables using the :FIELDS import tag. (Note that this
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still overrides your core functions.) Access these fields as variables
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named with a preceding C<tm_> in front their method names. Thus,
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C<$tm_obj-E<gt>mday()> corresponds to $tm_mday if you import the fields.
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The gmctime() funtion provides a way of getting at the
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scalar sense of the original CORE::gmtime() function.
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To access this functionality without the core overrides,
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pass the C<use> an empty import list, and then access
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function functions with their full qualified names.
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On the other hand, the built-ins are still available
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via the C<CORE::> pseudo-package.
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=head1 NOTE
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While this class is currently implemented using the Class::Struct
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module to build a struct-like class, you shouldn't rely upon this.
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=head1 AUTHOR
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Tom Christiansen
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