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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