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# Copyright (c) 1995-2009 Graham Barr. This program is free
# software; you can redistribute it and/or modify it under the same terms
# as Perl itself.
package Date::Format;
use strict;
use vars qw(@EXPORT @ISA $VERSION);
require Exporter;
$VERSION = "2.24";
@ISA = qw(Exporter);
@EXPORT = qw(time2str strftime ctime asctime);
sub time2str ($;$$)
{
Date::Format::Generic->time2str(@_);
}
sub strftime ($\@;$)
{
Date::Format::Generic->strftime(@_);
}
sub ctime ($;$)
{
my($t,$tz) = @_;
Date::Format::Generic->time2str("%a %b %e %T %Y\n", $t, $tz);
}
sub asctime (\@;$)
{
my($t,$tz) = @_;
Date::Format::Generic->strftime("%a %b %e %T %Y\n", $t, $tz);
}
##
##
##
package Date::Format::Generic;
use vars qw($epoch $tzname);
use Time::Zone;
use Time::Local;
sub ctime
{
my($me,$t,$tz) = @_;
$me->time2str("%a %b %e %T %Y\n", $t, $tz);
}
sub asctime
{
my($me,$t,$tz) = @_;
$me->strftime("%a %b %e %T %Y\n", $t, $tz);
}
sub _subs
{
my $fn;
$_[1] =~ s/
%(O?[%a-zA-Z])
/
($_[0]->can("format_$1") || sub { $1 })->($_[0]);
/sgeox;
$_[1];
}
sub strftime
{
my($pkg,$fmt,$time);
($pkg,$fmt,$time,$tzname) = @_;
my $me = ref($pkg) ? $pkg : bless [];
if(defined $tzname)
{
$tzname = uc $tzname;
$tzname = sprintf("%+05d",$tzname)
unless($tzname =~ /\D/);
$epoch = timegm(@{$time}[0..5]);
@$me = gmtime($epoch + tz_offset($tzname) - tz_offset());
}
else
{
@$me = @$time;
undef $epoch;
}
_subs($me,$fmt);
}
sub time2str
{
my($pkg,$fmt,$time);
($pkg,$fmt,$time,$tzname) = @_;
my $me = ref($pkg) ? $pkg : bless [], $pkg;
$epoch = $time;
if(defined $tzname)
{
$tzname = uc $tzname;
$tzname = sprintf("%+05d",$tzname)
unless($tzname =~ /\D/);
$time += tz_offset($tzname);
@$me = gmtime($time);
}
else
{
@$me = localtime($time);
}
$me->[9] = $time;
_subs($me,$fmt);
}
my(@DoW,@MoY,@DoWs,@MoYs,@AMPM,%format,@Dsuf);
@DoW = qw(Sunday Monday Tuesday Wednesday Thursday Friday Saturday);
@MoY = qw(January February March April May June
July August September October November December);
@DoWs = map { substr($_,0,3) } @DoW;
@MoYs = map { substr($_,0,3) } @MoY;
@AMPM = qw(AM PM);
@Dsuf = (qw(th st nd rd th th th th th th)) x 3;
@Dsuf[11,12,13] = qw(th th th);
@Dsuf[30,31] = qw(th st);
%format = ('x' => "%m/%d/%y",
'C' => "%a %b %e %T %Z %Y",
'X' => "%H:%M:%S",
);
my @locale;
my $locale = "/usr/share/lib/locale/LC_TIME/default";
local *LOCALE;
if(open(LOCALE,"$locale"))
{
chop(@locale = <LOCALE>);
close(LOCALE);
@MoYs = @locale[0 .. 11];
@MoY = @locale[12 .. 23];
@DoWs = @locale[24 .. 30];
@DoW = @locale[31 .. 37];
@format{"X","x","C"} = @locale[38 .. 40];
@AMPM = @locale[41 .. 42];
}
sub wkyr {
my($wstart, $wday, $yday) = @_;
$wday = ($wday + 7 - $wstart) % 7;
return int(($yday - $wday + 13) / 7 - 1);
}
##
## these 6 formatting routins need to be *copied* into the language
## specific packages
##
my @roman = ('',qw(I II III IV V VI VII VIII IX));
sub roman {
my $n = shift;
$n =~ s/(\d)$//;
my $r = $roman[ $1 ];
if($n =~ s/(\d)$//) {
(my $t = $roman[$1]) =~ tr/IVX/XLC/;
$r = $t . $r;
}
if($n =~ s/(\d)$//) {
(my $t = $roman[$1]) =~ tr/IVX/CDM/;
$r = $t . $r;
}
if($n =~ s/(\d)$//) {
(my $t = $roman[$1]) =~ tr/IVX/M../;
$r = $t . $r;
}
$r;
}
sub format_a { $DoWs[$_[0]->[6]] }
sub format_A { $DoW[$_[0]->[6]] }
sub format_b { $MoYs[$_[0]->[4]] }
sub format_B { $MoY[$_[0]->[4]] }
sub format_h { $MoYs[$_[0]->[4]] }
sub format_p { $_[0]->[2] >= 12 ? $AMPM[1] : $AMPM[0] }
sub format_P { lc($_[0]->[2] >= 12 ? $AMPM[1] : $AMPM[0]) }
sub format_d { sprintf("%02d",$_[0]->[3]) }
sub format_e { sprintf("%2d",$_[0]->[3]) }
sub format_H { sprintf("%02d",$_[0]->[2]) }
sub format_I { sprintf("%02d",$_[0]->[2] % 12 || 12)}
sub format_j { sprintf("%03d",$_[0]->[7] + 1) }
sub format_k { sprintf("%2d",$_[0]->[2]) }
sub format_l { sprintf("%2d",$_[0]->[2] % 12 || 12)}
sub format_L { $_[0]->[4] + 1 }
sub format_m { sprintf("%02d",$_[0]->[4] + 1) }
sub format_M { sprintf("%02d",$_[0]->[1]) }
sub format_q { sprintf("%01d",int($_[0]->[4] / 3) + 1) }
sub format_s {
$epoch = timelocal(@{$_[0]}[0..5])
unless defined $epoch;
sprintf("%d",$epoch)
}
sub format_S { sprintf("%02d",$_[0]->[0]) }
sub format_U { wkyr(0, $_[0]->[6], $_[0]->[7]) }
sub format_w { $_[0]->[6] }
sub format_W { wkyr(1, $_[0]->[6], $_[0]->[7]) }
sub format_y { sprintf("%02d",$_[0]->[5] % 100) }
sub format_Y { sprintf("%04d",$_[0]->[5] + 1900) }
sub format_Z {
my $o = tz_local_offset(timelocal(@{$_[0]}[0..5]));
defined $tzname ? $tzname : uc tz_name($o, $_[0]->[8]);
}
sub format_z {
my $t = timelocal(@{$_[0]}[0..5]);
my $o = defined $tzname ? tz_offset($tzname, $t) : tz_offset(undef,$t);
sprintf("%+03d%02d", int($o / 3600), int(abs($o) % 3600) / 60);
}
sub format_c { &format_x . " " . &format_X }
sub format_D { &format_m . "/" . &format_d . "/" . &format_y }
sub format_r { &format_I . ":" . &format_M . ":" . &format_S . " " . &format_p }
sub format_R { &format_H . ":" . &format_M }
sub format_T { &format_H . ":" . &format_M . ":" . &format_S }
sub format_t { "\t" }
sub format_n { "\n" }
sub format_o { sprintf("%2d%s",$_[0]->[3],$Dsuf[$_[0]->[3]]) }
sub format_x { my $f = $format{'x'}; _subs($_[0],$f); }
sub format_X { my $f = $format{'X'}; _subs($_[0],$f); }
sub format_C { my $f = $format{'C'}; _subs($_[0],$f); }
sub format_Od { roman(format_d(@_)) }
sub format_Oe { roman(format_e(@_)) }
sub format_OH { roman(format_H(@_)) }
sub format_OI { roman(format_I(@_)) }
sub format_Oj { roman(format_j(@_)) }
sub format_Ok { roman(format_k(@_)) }
sub format_Ol { roman(format_l(@_)) }
sub format_Om { roman(format_m(@_)) }
sub format_OM { roman(format_M(@_)) }
sub format_Oq { roman(format_q(@_)) }
sub format_Oy { roman(format_y(@_)) }
sub format_OY { roman(format_Y(@_)) }
sub format_G { int(($_[0]->[9] - 315993600) / 604800) }
1;
__END__
=head1 NAME
Date::Format - Date formating subroutines
=head1 SYNOPSIS
use Date::Format;
@lt = localtime(time);
print time2str($template, time);
print strftime($template, @lt);
print time2str($template, time, $zone);
print strftime($template, @lt, $zone);
print ctime(time);
print asctime(@lt);
print ctime(time, $zone);
print asctime(@lt, $zone);
=head1 DESCRIPTION
This module provides routines to format dates into ASCII strings. They
correspond to the C library routines C<strftime> and C<ctime>.
=over 4
=item time2str(TEMPLATE, TIME [, ZONE])
C<time2str> converts C<TIME> into an ASCII string using the conversion
specification given in C<TEMPLATE>. C<ZONE> if given specifies the zone
which the output is required to be in, C<ZONE> defaults to your current zone.
=item strftime(TEMPLATE, TIME [, ZONE])
C<strftime> is similar to C<time2str> with the exception that the time is
passed as an array, such as the array returned by C<localtime>.
=item ctime(TIME [, ZONE])
C<ctime> calls C<time2str> with the given arguments using the
conversion specification C<"%a %b %e %T %Y\n">
=item asctime(TIME [, ZONE])
C<asctime> calls C<time2str> with the given arguments using the
conversion specification C<"%a %b %e %T %Y\n">
=back
=head1 MULTI-LANGUAGE SUPPORT
Date::Format is capable of formating into several languages by creating
a language specific object and calling methods, see L<Date::Language>
my $lang = Date::Language->new('German');
$lang->time2str("%a %b %e %T %Y\n", time);
I am open to suggestions on this.
=head1 CONVERSION SPECIFICATION
Each conversion specification is replaced by appropriate
characters as described in the following list. The
appropriate characters are determined by the LC_TIME
category of the program's locale.
%% PERCENT
%a day of the week abbr
%A day of the week
%b month abbr
%B month
%c MM/DD/YY HH:MM:SS
%C ctime format: Sat Nov 19 21:05:57 1994
%d numeric day of the month, with leading zeros (eg 01..31)
%e like %d, but a leading zero is replaced by a space (eg 1..32)
%D MM/DD/YY
%G GPS week number (weeks since January 6, 1980)
%h month abbr
%H hour, 24 hour clock, leading 0's)
%I hour, 12 hour clock, leading 0's)
%j day of the year
%k hour
%l hour, 12 hour clock
%L month number, starting with 1
%m month number, starting with 01
%M minute, leading 0's
%n NEWLINE
%o ornate day of month -- "1st", "2nd", "25th", etc.
%p AM or PM
%P am or pm (Yes %p and %P are backwards :)
%q Quarter number, starting with 1
%r time format: 09:05:57 PM
%R time format: 21:05
%s seconds since the Epoch, UCT
%S seconds, leading 0's
%t TAB
%T time format: 21:05:57
%U week number, Sunday as first day of week
%w day of the week, numerically, Sunday == 0
%W week number, Monday as first day of week
%x date format: 11/19/94
%X time format: 21:05:57
%y year (2 digits)
%Y year (4 digits)
%Z timezone in ascii. eg: PST
%z timezone in format -/+0000
C<%d>, C<%e>, C<%H>, C<%I>, C<%j>, C<%k>, C<%l>, C<%m>, C<%M>, C<%q>,
C<%y> and C<%Y> can be output in Roman numerals by prefixing the letter
with C<O>, e.g. C<%OY> will output the year as roman numerals.
=head1 LIMITATION
The functions in this module are limited to the time range that can be
represented by the time_t data type, i.e. 1901-12-13 20:45:53 GMT to
2038-01-19 03:14:07 GMT.
=head1 AUTHOR
Graham Barr <gbarr@pobox.com>
=head1 COPYRIGHT
Copyright (c) 1995-2009 Graham Barr. This program is free
software; you can redistribute it and/or modify it under the same terms
as Perl itself.
=cut