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CTime.pm
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package Time::CTime; require 5.000; use Time::Timezone; use Time::CTime; require Exporter; @ISA = qw(Exporter); @EXPORT = qw(ctime asctime strftime); @EXPORT_OK = qw(asctime_n ctime_n @DoW @MoY @DayOfWeek @MonthOfYear); use strict; # constants use vars qw(@DoW @DayOfWeek @MoY @MonthOfYear %strftime_conversion $VERSION); use vars qw($template $sec $min $hour $mday $mon $year $wday $yday $isdst); $VERSION = 2011.0505; CONFIG: { @DoW = qw(Sun Mon Tue Wed Thu Fri Sat); @DayOfWeek = qw(Sunday Monday Tuesday Wednesday Thursday Friday Saturday); @MoY = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec); @MonthOfYear = qw(January February March April May June July August September October November December); %strftime_conversion = ( '%', sub { '%' }, 'a', sub { $DoW[$wday] }, 'A', sub { $DayOfWeek[$wday] }, 'b', sub { $MoY[$mon] }, 'B', sub { $MonthOfYear[$mon] }, 'c', sub { asctime_n($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst, "") }, 'd', sub { sprintf("%02d", $mday); }, 'D', sub { sprintf("%02d/%02d/%02d", $mon+1, $mday, $year%100) }, 'e', sub { sprintf("%2d", $mday); }, 'f', sub { fracprintf ("%3.3f", $sec); }, 'F', sub { fracprintf ("%6.6f", $sec); }, 'h', sub { $MoY[$mon] }, 'H', sub { sprintf("%02d", $hour) }, 'I', sub { sprintf("%02d", $hour % 12 || 12) }, 'j', sub { sprintf("%03d", $yday + 1) }, 'k', sub { sprintf("%2d", $hour); }, 'l', sub { sprintf("%2d", $hour % 12 || 12) }, 'm', sub { sprintf("%02d", $mon+1); }, 'M', sub { sprintf("%02d", $min) }, 'n', sub { "\n" }, 'o', sub { sprintf("%d%s", $mday, (($mday < 20 && $mday > 3) ? 'th' : ($mday%10 == 1 ? "st" : ($mday%10 == 2 ? "nd" : ($mday%10 == 3 ? "rd" : "th"))))) }, 'p', sub { $hour > 11 ? "PM" : "AM" }, 'r', sub { sprintf("%02d:%02d:%02d %s", $hour % 12 || 12, $min, $sec, $hour > 11 ? 'PM' : 'AM') }, 'R', sub { sprintf("%02d:%02d", $hour, $min) }, 'S', sub { sprintf("%02d", $sec) }, 't', sub { "\t" }, 'T', sub { sprintf("%02d:%02d:%02d", $hour, $min, $sec) }, 'U', sub { wkyr(0, $wday, $yday) }, 'v', sub { sprintf("%2d-%s-%4d", $mday, $MoY[$mon], $year+1900) }, 'w', sub { $wday }, 'W', sub { wkyr(1, $wday, $yday) }, 'y', sub { sprintf("%02d",$year%100) }, 'Y', sub { $year + 1900 }, 'x', sub { sprintf("%02d/%02d/%02d", $mon + 1, $mday, $year%100) }, 'X', sub { sprintf("%02d:%02d:%02d", $hour, $min, $sec) }, 'Z', sub { &tz2zone(undef,undef,$isdst) } # z sprintf("%+03d%02d", $offset / 3600, ($offset % 3600)/60); ); } sub fracprintf { my($t,$s) = @_; my($p) = sprintf($t, $s-int($s)); $p=~s/^0+//; $p; } sub asctime_n { my($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst, $TZname) = @_; ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst, $TZname) = localtime($sec) unless defined $min; $year += 1900; $TZname .= ' ' if $TZname; sprintf("%s %s %2d %2d:%02d:%02d %s%4d", $DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZname, $year); } sub asctime { return asctime_n(@_)."\n"; } # is this formula right? sub wkyr { my($wstart, $wday, $yday) = @_; $wday = ($wday + 7 - $wstart) % 7; return int(($yday - $wday + 13) / 7 - 1); } # ctime($time) sub ctime { my($time) = @_; asctime(localtime($time), &tz2zone(undef,$time)); } sub ctime_n { my($time) = @_; asctime_n(localtime($time), &tz2zone(undef,$time)); } # strftime($template, @time_struct) # # Does not support locales sub strftime { local ($template, $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) = @_; undef $@; $template =~ s/%([%aAbBcdDefFhHIjklmMnopQrRStTUvwWxXyYZ])/&{$Time::CTime::strftime_conversion{$1}}()/egs; die $@ if $@; return $template; } 1; __END__ =head1 NAME Time::CTime -- format times ala POSIX asctime =head1 SYNOPSIS use Time::CTime print ctime(time); print asctime(localtime(time)); print strftime(template, localtime(time)); =head2 strftime conversions %% PERCENT %a day of the week abbr %A day of the week %b month abbr %B month %c ctime format: Sat Nov 19 21:05:57 1994 %d DD %D MM/DD/YY %e numeric day of the month %f floating point seconds (milliseconds): .314 %F floating point seconds (microseconds): .314159 %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 %m month number, starting with 1, leading 0's %M minute, leading 0's %n NEWLINE %o ornate day of month -- "1st", "2nd", "25th", etc. %p AM or PM %r time format: 09:05:57 PM %R time format: 21:05 %S seconds, leading 0's %t TAB %T time format: 21:05:57 %U week number, Sunday as first day of week %v DD-Mon-Year %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 =head1 DESCRIPTION This module provides routines to format dates. They correspond to the libc routines. &strftime() supports a pretty good set of conversions -- more than most C libraries. strftime supports a pretty good set of conversions. The POSIX module has very similar functionality. You should consider using it instead if you do not have allergic reactions to system libraries. =head1 GENESIS Written by David Muir Sharnoff <muir@idiom.org>. The starting point for this package was a posting by Paul Foley <paul@ascent.com> =head1 LICENSE Copyright (C) 1996-2010 David Muir Sharnoff. Copyright (C) 2011 Google, Inc. License hereby granted for anyone to use, modify or redistribute this module at their own risk. Please feed useful changes back to cpan@dave.sharnoff.org.