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wakaba |
1.1 |
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=head1 NAME |
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wakaba |
1.9 |
Message::Field::Date --- Perl module for various styles of |
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date-time used in Internet messages and so on |
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wakaba |
1.1 |
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=cut |
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package Message::Field::Date; |
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use strict; |
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wakaba |
1.9 |
use vars qw(%DEFAULT @ISA %MONTH %REG $VERSION %ZONE); |
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$VERSION=do{my @r=(q$Revision: 1.2 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r}; |
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require Message::Field::Structured; |
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push @ISA, qw(Message::Field::Structured); |
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wakaba |
1.1 |
use Time::Local 'timegm_nocheck'; |
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wakaba |
1.9 |
%REG = %Message::Util::REG; |
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$REG{M_dt_rfc822} = qr!(?:[A-Za-z]+ ## Day of week |
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[\x09\x20,]*)? ([0-9]+) ## Day |
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[\x09\x20/-]* ([A-Za-z]+) ## Month |
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[\x09\x20/-]* ([0-9]+) ## Year |
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[\x09\x20:Tt-]+ ([0-9]+) ## Hour |
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[\x09\x20:]+ ([0-9]+) ## Minute |
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[\x09\x20:]* ([0-9]+)? ## Second |
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([\x09\x20 0-9A-Za-z+-]+)!x; ## Zone |
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$REG{M_dt_iso8601} = qr! ([0-9]{4,}) ## Year |
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[\x09\x20.:/-]+ ([0-9]+) ## Month |
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[\x09\x20.:/-]+ ([0-9]+) ## Day |
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(?:[\x09\x20.:Tt-]+ ([0-9]+) ## Hour |
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[\x09\x20.:]+ ([0-9]+) ## Minute |
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(?:[\x09\x20.:]+ ([0-9]+) ## Second |
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(?:[\x09\x20.:]+ ([0-9]+))?)?)? ## frac. |
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([\x09\x20 0-9A-Za-z:.+-]*) !x; ## Zone. |
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$REG{M_dt_rfc733} = qr!(?:[A-Za-z]+ ## Day of week |
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[\x09\x20,]*)? ([0-9]+) ## Day |
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[\x09\x20/-]* ([A-Za-z]+) ## Month |
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[\x09\x20/-]* ([0-9]+) ## Year |
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[\x09\x20:Tt-]+ ([0-9][0-9]) ## Hour |
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[\x09\x20:]* ([0-9][0-9]) ## Minute |
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[\x09\x20:]* ([0-9][0-9])? ## Second |
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([\x09\x20 0-9A-Za-z+-]+)!x; ## Zone |
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$REG{M_dt_rfc724} = qr!(?:[A-Za-z]+ ## Day of week |
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[\x09\x20,]*)? ([0-9][0-9]?) ## Month |
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[\x09\x20/]+ ([0-9][0-9]?) ## Day |
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[\x09\x20/]+ ([0-9]{2,}) ## Year |
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[\x09\x20:Tt-]+ ([0-9][0-9]) ## Hour |
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[\x09\x20:]* ([0-9][0-9]) ## Minute |
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[\x09\x20:]* ([0-9][0-9])? ## Second |
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([\x09\x20 0-9A-Za-z+-]+)!x; ## Zone |
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wakaba |
1.2 |
$REG{M_rfc724_slash_date} = qr#([0-9]+)$REG{FWS}/$REG{FWS}([0-9]+)$REG{FWS}/$REG{FWS}([0-9]+)$REG{WSP}+([0-9][0-9])$REG{FWS}(?::$REG{FWS})?([0-9][0-9])(?:$REG{FWS}(?::$REG{FWS})?([0-9][0-9]))?$REG{FWS}((?:-$REG{FWS})?[A-Za-z]+|[+-]$REG{WSP}*[0-9]+)#; |
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$REG{M_asctime} = qr/[A-Za-z]+$REG{FWS}([A-Za-z]+)$REG{FWS}([0-9]+)$REG{WSP}+([0-9]+)$REG{FWS}:$REG{FWS}([0-9]+)$REG{FWS}:$REG{FWS}([0-9]+)$REG{WSP}+([0-9]+)/; |
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$REG{M_iso8601_date_time} = qr/([0-9]+)-([0-9]+)-([0-9]+)[Tt]([0-9]+):([0-9]+):([0-9]+)(?:.([0-9]+))?(?:[Zz]|([+-])([0-9]+):([0-9]+))/; |
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wakaba |
1.1 |
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wakaba |
1.9 |
=head1 CONSTRUCTORS |
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The following methods construct new objects: |
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=over 4 |
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=cut |
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## Initialize of this class -- called by constructors |
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wakaba |
1.1 |
%DEFAULT = ( |
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wakaba |
1.9 |
-_MEMBERS => [qw|date_time secfrac|], |
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-_METHODS => [qw|unix_time second_fraction |
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comment_add comment_count comment_item comment_delete|], |
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-date_format => 'string', ## 'unix' / 1*ALPHA |
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#field_param_name |
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#field_name |
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#format |
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#hook_encode_string |
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#hook_decode_string |
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-output_comment => 1, |
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-str2time => { |
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CC => sub { sprintf $_[2]->{_fmt}, ## Support AD only |
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(($_[1]->{$_[2]->{_prefix}.'tm'}->[5] + 1899) / 100) + 1 }, |
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YYYY => sub { $_[2]->{_fmt} =~ tr/2/4/; |
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sprintf $_[2]->{_fmt}, |
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$_[1]->{$_[2]->{_prefix}.'tm'}->[5] + 1900 }, |
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YY => sub { sprintf $_[2]->{_fmt}, |
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substr ($_[1]->{$_[2]->{_prefix}.'tm'}->[5], -2) }, |
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MM => sub { sprintf $_[2]->{_fmt}, |
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$_[1]->{$_[2]->{_prefix}.'tm'}->[4] + 1 }, |
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Mon => sub { qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec) |
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[$_[1]->{$_[2]->{_prefix}.'tm'}->[4]] }, |
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Month => sub { qw(January February March April May June |
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July August September October November December) |
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[$_[1]->{$_[2]->{_prefix}.'tm'}->[4]] }, |
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DD => sub { sprintf $_[2]->{_fmt}, $_[1]->{$_[2]->{_prefix}.'tm'}->[3] }, |
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Wdy => sub { qw(Sun Mon Tue Wed Thu Fri Sat) |
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[$_[1]->{$_[2]->{_prefix}.'tm'}->[6]] }, |
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Weekday => sub { qw(Sunday Monday Tuesday Wednesday Thursday Friday Saturday) |
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[$_[1]->{$_[2]->{_prefix}.'tm'}->[6]] }, |
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shun => sub { |
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my @alphabet = split /:/, $_[2]->{alphabet} || 'abcc'; |
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my $day = $_[1]->{$_[2]->{_prefix}.'tm'}->[3]; |
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$day <= 10? $alphabet[0]: ## 1 - 10 joujun |
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$day <= 20? $alphabet[1]: ## 11 - 20 chuujun |
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$alphabet[2]; ## 21 - 31 gejun |
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}, |
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HH => sub { sprintf $_[2]->{_fmt}, $_[1]->{$_[2]->{_prefix}.'tm'}->[2] }, |
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TT => sub { sprintf $_[2]->{_fmt}, $_[1]->{$_[2]->{_prefix}.'tm'}->[1] }, |
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SS => sub { sprintf $_[2]->{_fmt}, $_[1]->{$_[2]->{_prefix}.'tm'}->[0] }, |
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unix => sub { $_[1]->{$_[2]->{_prefix}.'unix'} }, |
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frac => sub { $_[0]->{secfrac} }, |
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zsign => sub { $_[1]->{zone}->[0] > 0 ? '+' : '-' }, |
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zHH => sub { sprintf $_[2]->{_fmt}, $_[1]->{zone}->[1] }, |
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zTT => sub { sprintf $_[2]->{_fmt}, $_[1]->{zone}->[2] }, |
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percent => '%', |
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}, |
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-use_comment => 1, |
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-use_military_zone => +1, ## +1 / -1 / 0 |
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-zone => [+1, 0, 0], |
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-zone_default_string => '-0000', |
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wakaba |
1.1 |
); |
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%MONTH = ( |
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JAN => 1, JANUARY => 1, |
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FEB => 2, FEBRUARY => 2, |
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MAR => 3, MARCH => 3, |
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APR => 4, APRIL => 4, |
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MAY => 5, |
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JUN => 6, JUNE => 6, |
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JUL => 7, JULY => 7, |
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AUG => 8, AUGUST => 8, |
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wakaba |
1.8 |
SEP => 9, SEPTEMBER => 9, SEPT => 9, |
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wakaba |
1.1 |
OCT => 10, OCTOBER => 10, |
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NOV => 11, NOVEMBER => 11, |
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DEC => 12, DECEMBER => 12, |
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); |
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wakaba |
1.9 |
%ZONE = ( ## NA = Northern America |
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ADT => [-1, 3, 0], ## (NA)Atlantic Daylight 733 |
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CHST => [-1, 10, 0], ## Alaska-Hawaii Standard |
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AST => [-1, 4, 0], ## (NA)Atlantic Standard 733 |
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AT => [-1, 2, 0], ## Azores |
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BDT => [-1, 10, 0], ## 733 |
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BST => [-1, 11, 0], ## 733 |
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#BST => [+1, 1, 0], ## British Summer |
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#BST => [-1, 3, 0], ## Brazil Standard |
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BT => [+1, 3, 0], ## Baghdad |
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CADT => [+1, 10, 30], ## Central Australian Daylight |
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CAST => [+1, 9, 30], ## Central Australian Standard |
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CAT => [-1, 10, 0], ## Central Alaska |
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CCT => [+1, 8, 0], ## China Coast |
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CDT => [-1, 5, 0], ## (NA)Central Daylight 733, 822 |
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CET => [+1, 1, 0], ## Central European |
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CEST => [+1, 2, 0], ## Central European Daylight |
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CST => [-1, 6, 0], ## (NA)Central Standard 733, 822 |
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EADT => [+1, 11, 0], ## Eastern Australian Daylight |
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EADT => [+1, 10, 0], ## Eastern Australian Standard |
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ECT => [+1, 1, 0], ## Central European (French) |
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EDT => [-1, 4, 0], ## (NA)Eastern Daylight 733, 822 |
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EEST => [+1, 3, 0], ## Eastern European Summer |
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EET => [+1, 2, 0], ## Eastern Europe 1947 |
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EST => [-1, 5, 0], ## (NA)Eastern Standard 733, 822 |
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EWT => [-1, 4, 0], ## U.S. Eastern War Time |
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FST => [+1, 2, 0], ## French Summer |
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FWT => [+1, 1, 0], ## French Winter |
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GDT => [+1, 1, 0], ## 724 |
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GMT => [+1, 0, 0], ## Greenwich Mean 733, 822 |
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#GST => [-1, 3, 0], ## Greenland Standard |
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GST => [+1, 10, 0], ## Guam Standard |
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HDT => [-1, 9, 0], ## Hawaii Daylight 733 |
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HKT => [+1, 8, 0], ## Hong Kong |
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HST => [-1, 10, 0], ## Hawaii Standard 733 |
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IDLE => [+1, 12, 0], ## International Date Line East |
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IDLW => [-1, 12, 0], ## International Date Line West |
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wakaba |
1.2 |
IDT => [+1, 3, 0], |
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wakaba |
1.9 |
IST => [+1, 2, 0], ## Israel standard |
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#IST => [+1, 5, 30], ## Indian standard |
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IT => [+1, 3, 30], ## Iran |
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JST => [+1, 9, 0], ## Japan Central Standard |
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JT => [+1, 7, 30], ## Java |
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KDT => [+1, 10, 0], ## Korean Daylight |
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KST => [+1, 9, 0], ## Korean Standard |
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MDT => [-1, 6, 0], ## (NA)Mountain Daylight 733, 822 |
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MET => [+1, 0, 0], ## Middle European |
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METDST => [+1, 2, 0], |
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MEST => [+1, 2, 0], ## Middle European Summer |
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MEWT => [+1, 0, 0], ## Middle European Winter |
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MEZ => [+1, 0, 0], ## Central European (German) |
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MST => [-1, 7, 0], ## (NA)Mountain Standard 733, 822 |
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NDT => [-1, 2, 30], ## Newfoundland Daylight |
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NFT => [-1, 3, 30], ## Newfoundland Standard |
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NST => [-1, 3, 30], ## Newfoundland Standard 733 |
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#NST => [-1, 6, 30], ## North Sumatra |
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NT => [-1, 11, 0], ## Nome |
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NZD => [+1, 13, 0], ## New Zealand Daylight |
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NZT => [+1, 12, 0], ## New Zealand |
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NZDT => [+1, 13, 0], ## New Zealand Daylight |
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NZST => [+1, 12, 0], ## New Zealand Standard |
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PDT => [-1, 7, 0], ## (NA)Pacific Daylight 733, 822 |
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PST => [-1, 8, 0], ## (NA)Pacific Standard 733, 822 |
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SET => [+1, 1, 0], ## Seychelles |
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SST => [+1, 2, 0], ## Swedish Summer |
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#SST => [+1, 7, 0], ## South Sumatra |
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SWT => [+1, 1, 0], ## Swedish Winter |
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UKR => [+1, 2, 0], ## Ukraine |
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UT => [+1, 0, 0], ## 822 |
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UTC => [+1, 0, 0], |
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WADT => [+1, 8, 0], ## West Australian Daylight |
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WAT => [-1, 0, 0], ## West Africa |
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WET => [+1, 0, 0], ## Western European |
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WST => [+1, 8, 0], ## West Australian Standard |
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YDT => [-1, 8, 0], ## Yukon Daylight 733 |
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YST => [-1, 9, 0], ## Yukon Standard 733 |
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Z => [+1, 0, 0], ## 822, ISO 8601 |
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ZP4 => [+1, 4, 0], ## Z+4 |
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ZP5 => [+1, 5, 0], ## Z+5 |
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ZP6 => [+1, 6, 0], ## Z+6 |
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wakaba |
1.1 |
); |
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wakaba |
1.9 |
## -use_military_zone => +1 / -1 / 0 |
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## Whether military zone names are understood or not. |
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## +1 Admits them and treats as standard value. (eg. "A" = +0100) |
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## -1 Admits them but treats as negative value. (eg. "A" = -0100) |
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## 0 They are ignored and zone is set as -0000. (eg. "A" = -0000) |
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## Because of typo in BNF comment of RFCs 733 and 822, |
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## quite a few implemention use these values incorrectly. |
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## As a result, these zone names carry no worthful information. |
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## RFC 2822 recommends these names be taken as '-0000' (i.e. |
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## unknown zone). |
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wakaba |
1.1 |
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wakaba |
1.9 |
sub _set_military_zone_name ($) { |
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wakaba |
1.1 |
my $self = shift; |
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wakaba |
1.9 |
my $mode = $self->{option}->{use_military_zone}; |
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wakaba |
1.1 |
my $i = 0; |
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wakaba |
1.9 |
if ($mode == 0) { |
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for my $letter ('A'..'Y') {$ZONE{$letter} = [-1, 0, 0]} return; |
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wakaba |
1.1 |
} |
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for my $letter ('Z', 'A'..'I', 'K'..'M') { |
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$ZONE{$letter} = [+1*$mode, $i++, 0]; |
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} $i = 1; |
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for my $letter ('N'..'Y') { |
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$ZONE{$letter} = [-1*$mode, $i++, 0]; |
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} |
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} |
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wakaba |
1.9 |
sub _init ($;%) { |
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my $self = shift; |
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my $DEFAULT = Message::Util::make_clone (\%DEFAULT); |
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my %option = @_; |
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$self->SUPER::_init (%$DEFAULT, %option); |
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$self->{date_time} = $option{unix} if defined $option{unix}; |
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$self->{secfrac} = $option{frac} if defined $option{frac}; |
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my $format = $self->{option}->{format}; |
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if ($format =~ /rfc2822/) { |
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$self->{option}->{use_military_zone} = 0; |
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} |
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$self->_set_military_zone_name; |
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} |
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=item $date = Message::Field::Date->new ([%options]) |
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wakaba |
1.1 |
|
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wakaba |
1.9 |
Constructs a new object. You might pass some options as parameters |
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to the constructor. |
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wakaba |
1.1 |
|
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=cut |
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wakaba |
1.9 |
## Inherited |
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wakaba |
1.1 |
|
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wakaba |
1.9 |
=item $date = Message::Field::Date->parse ($field-body, [%options]) |
| 267 |
wakaba |
1.1 |
|
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wakaba |
1.9 |
Constructs a new object with given field body. You might pass |
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some options as parameters to the constructor. |
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wakaba |
1.1 |
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=cut |
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sub parse ($$;%) { |
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wakaba |
1.9 |
my $class = shift; |
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my $self = bless {}, $class; |
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my $body = shift; |
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$self->_init (@_); |
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($body, @{$self->{comment}}) |
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= $self->Message::Util::delete_comment_to_array ($body) |
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if $self->{option}->{use_comment}; |
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|
|
$body =~ s/^$REG{WSP}+//; $body =~ s/$REG{WSP}+$//; |
| 282 |
|
|
if ($self->{option}->{date_format} eq 'unix') { |
| 283 |
|
|
$self->{date_time} = int ($body); |
| 284 |
|
|
} elsif ($body =~ /^$REG{M_dt_rfc822}$/x) { |
| 285 |
wakaba |
1.1 |
my ($day, $month, $year, $hour, $minute, $second, $zone) |
| 286 |
|
|
= ($1, uc $2, $3, $4, $5, $6, uc $7); |
| 287 |
|
|
$month = $MONTH{$month} || 1; |
| 288 |
wakaba |
1.9 |
$year = $self->_obvious_year ($year) if length($year)<4; |
| 289 |
wakaba |
1.1 |
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
| 290 |
|
|
eval '$self->{date_time} = timegm_nocheck |
| 291 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
| 292 |
|
|
$day, $month-1, $year);'; |
| 293 |
wakaba |
1.2 |
$self->{secfrac} = ''; |
| 294 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
| 295 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_iso8601}$/x) { |
| 296 |
|
|
my ($year,$month,$day,$hour,$minute,$second,$secfrac,$zone) |
| 297 |
|
|
= ($1, $2, $3, $4, $5, $6, $7, $8); |
| 298 |
|
|
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
| 299 |
wakaba |
1.2 |
eval '$self->{date_time} = timegm_nocheck |
| 300 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
| 301 |
|
|
$day, $month-1, $year);'; |
| 302 |
|
|
$self->{secfrac} = $secfrac; |
| 303 |
wakaba |
1.1 |
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
| 304 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_rfc733}$/x) { |
| 305 |
wakaba |
1.1 |
my ($day, $month, $year, $hour, $minute, $second, $zone) |
| 306 |
|
|
= ($1, uc $2, $3, $4, $5, $6, uc $7); |
| 307 |
|
|
$month = $MONTH{$month} || 1; |
| 308 |
wakaba |
1.9 |
$year = $self->_obvious_year ($year) if length($year)<4; |
| 309 |
wakaba |
1.1 |
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
| 310 |
|
|
eval '$self->{date_time} = timegm_nocheck |
| 311 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
| 312 |
|
|
$day, $month-1, $year);'; |
| 313 |
wakaba |
1.2 |
$self->{secfrac} = ''; |
| 314 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
| 315 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_rfc724}$/x) { |
| 316 |
wakaba |
1.2 |
my ($month, $day, $year, $hour, $minute, $second, $zone) |
| 317 |
|
|
= ($1, $2, $3, $4, $5, $6, uc $7); |
| 318 |
wakaba |
1.9 |
$year = $self->_obvious_year ($year) if length($year)<4; |
| 319 |
wakaba |
1.2 |
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
| 320 |
|
|
eval '$self->{date_time} = timegm_nocheck |
| 321 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
| 322 |
|
|
$day, $month-1, $year);'; |
| 323 |
|
|
$self->{secfrac} = ''; |
| 324 |
wakaba |
1.1 |
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
| 325 |
wakaba |
1.9 |
#} elsif ($body =~ /^[0-9]+$/) { |
| 326 |
|
|
# $self->{date_time} = $&; |
| 327 |
wakaba |
1.1 |
} else { |
| 328 |
wakaba |
1.9 |
## From HTTP::Date (revision 1.40) by Gisle Aas |
| 329 |
|
|
#$body =~ s/^\s+//; # kill leading space |
| 330 |
|
|
$body =~ s/^(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)[a-z]*,?\s*//i; # Useless weekday |
| 331 |
|
|
my ($day, $month, $year, $hour, $minute, $second); |
| 332 |
|
|
my ($secfrac, $zone, $ampm) = ('', $self->{option}->{zone_default_string}); |
| 333 |
|
|
|
| 334 |
|
|
# Then we are able to check for most of the formats with this regexp |
| 335 |
|
|
(($day,$month,$year,$hour,$minute,$second,$zone) = |
| 336 |
|
|
$body =~ m"^ |
| 337 |
|
|
(\d\d?) # day |
| 338 |
|
|
(?:\s+|[-\/]) |
| 339 |
|
|
(\w+) # month |
| 340 |
|
|
(?:\s+|[-\/]) |
| 341 |
|
|
(\d+) # year |
| 342 |
|
|
(?: |
| 343 |
|
|
(?:\s+|:) # separator before clock |
| 344 |
|
|
(\d\d?):(\d\d) # hour:min |
| 345 |
|
|
(?::(\d\d))? # optional seconds |
| 346 |
|
|
)? # optional clock |
| 347 |
|
|
\s* |
| 348 |
|
|
([-+]?\d{2,4}|(?![APap][Mm]\b)[A-Za-z]+)? # timezone |
| 349 |
|
|
$"x) |
| 350 |
|
|
|
| 351 |
|
|
|| |
| 352 |
|
|
|
| 353 |
|
|
# Try the ctime and asctime format |
| 354 |
|
|
(($month, $day, $hour, $minute, $second, $zone, $year) = |
| 355 |
|
|
$body =~ m"^ |
| 356 |
|
|
(\w{1,3}) # month |
| 357 |
|
|
\s+ |
| 358 |
|
|
(\d\d?) # day |
| 359 |
|
|
\s+ |
| 360 |
|
|
(\d\d?):(\d\d) # hour:min |
| 361 |
|
|
(?::(\d\d))? # optional seconds |
| 362 |
|
|
\s+ |
| 363 |
|
|
(?:([A-Za-z]+)\s+)? # optional timezone |
| 364 |
|
|
(\d+) # year |
| 365 |
|
|
$"x) |
| 366 |
|
|
|
| 367 |
|
|
|| |
| 368 |
|
|
|
| 369 |
|
|
# Then the Unix 'ls -l' date format |
| 370 |
|
|
(($month, $day, $year, $hour, $minute, $second) = |
| 371 |
|
|
$body =~ m"^ |
| 372 |
|
|
(\w{3}) # month |
| 373 |
|
|
\s+ |
| 374 |
|
|
(\d\d?) # day |
| 375 |
|
|
\s+ |
| 376 |
|
|
(?: |
| 377 |
|
|
(\d\d\d\d) | # year |
| 378 |
|
|
(\d{1,2}):(\d{2}) # hour:min |
| 379 |
|
|
(?::(\d\d))? # optional seconds |
| 380 |
|
|
) |
| 381 |
|
|
$"x) |
| 382 |
|
|
|
| 383 |
|
|
|| |
| 384 |
|
|
|
| 385 |
|
|
# ISO 8601 format '1996-02-29 12:00:00 -0100' and variants |
| 386 |
|
|
(($year, $month, $day, $hour, $minute, $second, $secfrac, $zone) = |
| 387 |
|
|
$body =~ m"^ |
| 388 |
|
|
(\d{4}) # year |
| 389 |
|
|
[-\/]? |
| 390 |
|
|
(\d\d?) # numerical month |
| 391 |
|
|
[-\/]? |
| 392 |
|
|
(\d\d?) # day |
| 393 |
|
|
(?: |
| 394 |
|
|
(?:\s+|[-:Tt]) # separator before clock |
| 395 |
|
|
(\d\d?):?(\d\d) # hour:min |
| 396 |
|
|
(?: |
| 397 |
|
|
:? |
| 398 |
|
|
(\d\d) |
| 399 |
|
|
(?:\.?(\d+))? ## optional second frac. |
| 400 |
|
|
)? # optional seconds |
| 401 |
|
|
)? # optional clock |
| 402 |
|
|
\s* |
| 403 |
|
|
([-+]?\d\d?:?(:?\d\d)? |
| 404 |
|
|
|Z|z)? # timezone (Z is 'zero meridian', i.e. GMT) |
| 405 |
|
|
|
| 406 |
|
|
$"x) |
| 407 |
|
|
|
| 408 |
|
|
|| |
| 409 |
|
|
|
| 410 |
|
|
# ISO 8601 like format '96-02-29 2:0:0 -0100' and variants |
| 411 |
|
|
(($year, $month, $day, $hour, $minute, $second, $secfrac, $zone) = |
| 412 |
|
|
$body =~ m"^ |
| 413 |
|
|
(\d+) # year |
| 414 |
|
|
[-/] |
| 415 |
|
|
(\d\d?) # numerical month |
| 416 |
|
|
[-/] |
| 417 |
|
|
(\d\d?) # day |
| 418 |
|
|
(?: |
| 419 |
|
|
(?:\s+|[-:Tt]) # separator before clock |
| 420 |
|
|
(\d\d?):(\d+) # hour:min |
| 421 |
|
|
(?: |
| 422 |
|
|
: |
| 423 |
|
|
(\d+) |
| 424 |
|
|
(?:\.(\d+)) ## optional second frac. |
| 425 |
|
|
)? # optional seconds |
| 426 |
|
|
)? # optional clock |
| 427 |
|
|
\s* |
| 428 |
|
|
([-+]?\d+(:\d+)? |
| 429 |
|
|
|Z|z)? # timezone (Z is 'zero meridian', i.e. GMT) |
| 430 |
|
|
|
| 431 |
|
|
$"x) |
| 432 |
|
|
|
| 433 |
|
|
|| |
| 434 |
|
|
|
| 435 |
|
|
# Windows 'dir' 11-12-96 03:52PM |
| 436 |
|
|
(($month, $day, $year, $hour, $minute, $ampm) = |
| 437 |
|
|
$body =~ m"^ |
| 438 |
|
|
(\d{2}) # numerical month |
| 439 |
|
|
- |
| 440 |
|
|
(\d{2}) # day |
| 441 |
|
|
- |
| 442 |
|
|
(\d{2}) # year |
| 443 |
|
|
\s+ |
| 444 |
|
|
(\d\d?):(\d\d)([APap][Mm]) # hour:min AM or PM |
| 445 |
|
|
$"x) |
| 446 |
|
|
|
| 447 |
|
|
#|| |
| 448 |
|
|
#return; # unrecognized format |
| 449 |
|
|
; |
| 450 |
|
|
|
| 451 |
|
|
$day ||= 1; |
| 452 |
|
|
# Translate month name to number |
| 453 |
|
|
$month = $MONTH{uc $month} |
| 454 |
|
|
##|| ($mon >= 1 && $mon <= 12 && int($mon)) |
| 455 |
|
|
|| int ($month) |
| 456 |
|
|
|| 1; |
| 457 |
|
|
|
| 458 |
|
|
# If the year is missing, we assume first date before the current, |
| 459 |
|
|
# because of the formats we support such dates are mostly present |
| 460 |
|
|
# on "ls -l" listings. |
| 461 |
|
|
unless (defined $year) { |
| 462 |
|
|
my $cur_mon; |
| 463 |
|
|
($cur_mon, $year) = (localtime)[4, 5]; |
| 464 |
|
|
$year += 1900; $cur_mon++; |
| 465 |
|
|
$year-- if $month > $cur_mon; |
| 466 |
|
|
} elsif (length($year) < 3) { |
| 467 |
|
|
$year = $self->_obvious_year ($year); |
| 468 |
|
|
} |
| 469 |
|
|
|
| 470 |
|
|
# Make sure clock elements are defined |
| 471 |
|
|
$hour = 0 unless defined($hour); |
| 472 |
|
|
$minute = 0 unless defined($minute); |
| 473 |
|
|
$second = 0 unless defined($second); |
| 474 |
|
|
|
| 475 |
|
|
# Compensate for AM/PM |
| 476 |
|
|
if ($ampm) { |
| 477 |
|
|
$ampm = uc $ampm; |
| 478 |
|
|
$hour = 0 if $hour == 12 && $ampm eq 'AM'; |
| 479 |
|
|
$hour += 12 if $ampm eq 'PM' && $hour != 12; |
| 480 |
|
|
} |
| 481 |
|
|
|
| 482 |
|
|
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
| 483 |
|
|
eval '$self->{date_time} = timegm_nocheck |
| 484 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
| 485 |
|
|
$day, $month-1, $year);'; |
| 486 |
|
|
$self->{secfrac} = $secfrac; |
| 487 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
| 488 |
wakaba |
1.1 |
} |
| 489 |
|
|
$self; |
| 490 |
|
|
} |
| 491 |
|
|
|
| 492 |
wakaba |
1.9 |
## Find "obvious" year |
| 493 |
|
|
sub _obvious_year ($$) { |
| 494 |
|
|
my $self = shift; |
| 495 |
|
|
my $year = shift; |
| 496 |
|
|
if ($self->{option}->{format} =~ /mail|news/) { |
| 497 |
|
|
## RFC 2822 |
| 498 |
|
|
if ( 0 <=$year && $year < 50) {$year += 2000} |
| 499 |
|
|
elsif (50 < $year && $year < 1000) {$year += 1900} |
| 500 |
|
|
} else { |
| 501 |
|
|
## RFC 2616 |
| 502 |
|
|
my $cur_yr = (localtime)[5] + 1900; |
| 503 |
|
|
my $m = $cur_yr % 100; |
| 504 |
|
|
my $tmp = $year; |
| 505 |
|
|
$year += $cur_yr - $m; |
| 506 |
|
|
$m -= $tmp; |
| 507 |
|
|
$year += ($m > 0) ? 100 : -100 if abs($m) > 50; |
| 508 |
|
|
} |
| 509 |
|
|
$year; |
| 510 |
|
|
} |
| 511 |
|
|
|
| 512 |
|
|
=back |
| 513 |
|
|
|
| 514 |
|
|
=head1 METHODS |
| 515 |
|
|
|
| 516 |
|
|
=over 4 |
| 517 |
|
|
|
| 518 |
|
|
|
| 519 |
wakaba |
1.4 |
=head2 $self->unix_time ([$new_time]) |
| 520 |
|
|
|
| 521 |
|
|
Returns or set the unix-time (seconds from the Epoch). |
| 522 |
|
|
|
| 523 |
|
|
=cut |
| 524 |
|
|
|
| 525 |
|
|
sub unix_time ($;$) { |
| 526 |
|
|
my $self = shift; |
| 527 |
|
|
my $new_time = shift; |
| 528 |
|
|
if (defined $new_time) { |
| 529 |
wakaba |
1.6 |
$self->{date_time} = $new_time + 0; |
| 530 |
wakaba |
1.4 |
} |
| 531 |
|
|
$self->{date_time}; |
| 532 |
|
|
} |
| 533 |
|
|
|
| 534 |
wakaba |
1.2 |
=head2 $self->second_fraction ([$new_fraction]) |
| 535 |
|
|
|
| 536 |
|
|
Returns or set the decimal fraction of a second. |
| 537 |
|
|
Value is a string containing of only [0-9] |
| 538 |
|
|
or empty string. |
| 539 |
|
|
|
| 540 |
|
|
=cut |
| 541 |
|
|
|
| 542 |
|
|
sub second_fraction ($;$) { |
| 543 |
|
|
my $self = shift; |
| 544 |
|
|
my $new_fraction = shift; |
| 545 |
|
|
if (defined $new_fraction) { |
| 546 |
|
|
$self->{secfrac} = $new_fraction unless $new_fraction =~ /[^0-9]/; |
| 547 |
|
|
} |
| 548 |
|
|
$self->{secfrac}; |
| 549 |
|
|
} |
| 550 |
|
|
|
| 551 |
wakaba |
1.9 |
=item $field-body = $date->stringify () |
| 552 |
wakaba |
1.1 |
|
| 553 |
|
|
Returns C<field-body> as a string. |
| 554 |
|
|
|
| 555 |
|
|
=cut |
| 556 |
|
|
|
| 557 |
wakaba |
1.2 |
sub stringify ($;%) { |
| 558 |
wakaba |
1.1 |
my $self = shift; |
| 559 |
wakaba |
1.9 |
my %o = @_; |
| 560 |
|
|
my %option = %{$self->{option}}; |
| 561 |
|
|
for (grep {/^-/} keys %o) {$option{substr ($_, 1)} = $o{$_}} |
| 562 |
|
|
unless ($option{format_template}) { |
| 563 |
|
|
if ($option{format} =~ /rfc2822|rfc1123|son-of-rfc1036|usefor|mime/) { |
| 564 |
|
|
$option{format_template} = '%Wdy(local);, %DD(local); %Mon(local); %YYYY(local); %HH(local);:%TT(local);:%SS(local); %zsign;%zHH;%zTT;'; |
| 565 |
|
|
} elsif ($option{format} =~ /http/) { |
| 566 |
|
|
$option{format_template} = '%Wdy;, %DD; %Mon; %YYYY; %HH;:%TT;:%SS; GMT'; |
| 567 |
|
|
} elsif ($option{format} =~ /rfc822|rfc1036/) { |
| 568 |
|
|
$option{format_template} = '%Wdy(local);, %DD(local); %Mon(local); %YY(local); (%YYYY(local);) %HH(local);:%TT(local);:%SS(local); %zsign;%zHH;%zTT;'; |
| 569 |
|
|
} elsif ($option{format} =~ /rfc850/) { |
| 570 |
|
|
$option{format_template} = '%Weekday;, %DD;-%Mon;-%YY; %HH;:%TT;:%SS; GMT'; |
| 571 |
|
|
} elsif ($option{format} =~ /asctime/) { |
| 572 |
|
|
$option{format_template} = '%Wdy; %Mon; %DD(pad=>SP); %HH;:%MM;:%SS; %YYYY;'; |
| 573 |
|
|
#} elsif ($option{format} =~ /date\(1\)/) { |
| 574 |
|
|
# $option{format_template} = '%Wdy; %Mon; %DD(pad=>SP); %HH;:%MM;:%SS; GMT %YYYY;'; |
| 575 |
|
|
} elsif ($option{format} =~ /un[i*]x/) { ## :-) |
| 576 |
|
|
$option{format_template} = '%unix;'; |
| 577 |
|
|
} else { ## ISO 8601 (IETF) |
| 578 |
|
|
$option{format_template} = '%YYYY(local);-%MM(local);-%DD(local);T%HH(local);:%TT(local);:%SS(local);%frac(prefix=>.);%zsign;%zHH;:%zTT;'; |
| 579 |
|
|
} |
| 580 |
wakaba |
1.2 |
} |
| 581 |
wakaba |
1.9 |
$self->_date2str (\%option) |
| 582 |
|
|
. (($option{output_comment} && @{$self->{comment}} > 0)? |
| 583 |
|
|
' ' . $self->_comment_stringify: ''); |
| 584 |
|
|
} |
| 585 |
|
|
*as_string = \&stringify; |
| 586 |
|
|
*as_plain_string = \&stringify; |
| 587 |
|
|
|
| 588 |
|
|
sub _date2str ($\%) { |
| 589 |
|
|
my $self = shift; |
| 590 |
|
|
my $option = shift; |
| 591 |
|
|
my $template = $option->{format_template}; |
| 592 |
|
|
my $time = $self->{date_time}; |
| 593 |
|
|
my $zone = $option->{zone}; |
| 594 |
|
|
if (ref $zone) {} |
| 595 |
|
|
elsif (length $zone) {$zone = [$self->_zone_string_to_array ($zone)]} |
| 596 |
|
|
my $l_time = $time + $zone->[0] * ($zone->[1] * 60 + $zone->[2]) * 60; |
| 597 |
|
|
my %time = (unix => $time, |
| 598 |
|
|
tm => [gmtime ($time)], |
| 599 |
|
|
l_unix => $l_time, |
| 600 |
|
|
l_tm => [gmtime ($l_time)], |
| 601 |
|
|
zone => $zone); |
| 602 |
|
|
$template =~ s{%([A-Za-z0-9_]+)(?:\(([A-Za-z0-9,.:\x09\x20=>_-]*)\))?;}{ |
| 603 |
|
|
my ($f, $a) = ($1, $2); |
| 604 |
|
|
my $function = $option->{str2time}->{$f}; |
| 605 |
|
|
if (ref $function) { |
| 606 |
|
|
my %a; |
| 607 |
|
|
for (split /[\x09\x20]*,[\x09\x20]*/, $a) { |
| 608 |
|
|
if (/^([^=]+)=>(.+)$/) {$a{$1} = $2} |
| 609 |
|
|
else {$a{$_} = 1} |
| 610 |
|
|
} |
| 611 |
|
|
$a{_prefix} = $a{local}? 'l_': ''; |
| 612 |
|
|
$a{_fmt} = $a{pad} eq 'SP'? '%2d': |
| 613 |
|
|
$a{pad} eq 'none'? '%d': |
| 614 |
|
|
'%02d'; |
| 615 |
|
|
my $r = &$function ($self, \%time, \%a); |
| 616 |
|
|
length $r? $a{prefix}.$r.$a{suffix}: ''; |
| 617 |
|
|
} elsif (length $function) { |
| 618 |
|
|
$function; |
| 619 |
|
|
} else { |
| 620 |
|
|
"[$f: undef]"; |
| 621 |
|
|
} |
| 622 |
|
|
}gex; |
| 623 |
|
|
$template; |
| 624 |
wakaba |
1.1 |
} |
| 625 |
|
|
|
| 626 |
wakaba |
1.2 |
|
| 627 |
wakaba |
1.1 |
|
| 628 |
|
|
sub _zone_string_to_array ($$;$) { |
| 629 |
|
|
my $self = shift; |
| 630 |
|
|
my $zone = shift; |
| 631 |
|
|
my $format = shift; |
| 632 |
|
|
my @azone = [+1, 0, 0]; |
| 633 |
wakaba |
1.9 |
$zone =~ tr/\x09\x20//d; |
| 634 |
|
|
if ($zone =~ /([+-])([0-9][0-9])([0-9][0-9])/) { |
| 635 |
|
|
@azone = ("${1}1", $2, $3); |
| 636 |
|
|
} elsif ($zone =~ /([+-]?)([0-9]+)(?:[:.-]([0-9]+))?/) { |
| 637 |
wakaba |
1.1 |
@azone = ("${1}1", $2, $3); |
| 638 |
|
|
} else { $zone =~ tr/-//d; |
| 639 |
|
|
if (ref $ZONE{$zone}) {@azone = @{$ZONE{$zone}}} |
| 640 |
|
|
elsif ($zone) {@azone = (-1, 0, 0)} |
| 641 |
|
|
} |
| 642 |
|
|
# } |
| 643 |
|
|
@azone; |
| 644 |
|
|
} |
| 645 |
|
|
|
| 646 |
wakaba |
1.9 |
=item $option-value = $date->option ($option-name) |
| 647 |
|
|
|
| 648 |
|
|
Gets option value. |
| 649 |
|
|
|
| 650 |
|
|
=item $date->option ($option-name, $option-value, ...) |
| 651 |
|
|
|
| 652 |
|
|
Set option value(s). You can pass multiple option name-value pair |
| 653 |
|
|
as parameter when setting. |
| 654 |
|
|
|
| 655 |
|
|
=item $clone = $date->clone () |
| 656 |
|
|
|
| 657 |
|
|
Returns a copy of the object. |
| 658 |
|
|
|
| 659 |
|
|
=cut |
| 660 |
|
|
|
| 661 |
|
|
## option, clone, method_available: Inherited |
| 662 |
|
|
|
| 663 |
wakaba |
1.1 |
=head1 EXAMPLE |
| 664 |
|
|
|
| 665 |
wakaba |
1.2 |
use Message::Field::Date; |
| 666 |
wakaba |
1.1 |
|
| 667 |
wakaba |
1.9 |
print Message::Field::Date->new (unix => time, |
| 668 |
|
|
-zone => '+0900'),"\n"; ## Thu, 16 May 2002 17:53:44 +0900 |
| 669 |
|
|
print Message::Field::Date->new (unix => time, |
| 670 |
|
|
-format_template => ## Century: 21, Year: 02, Month: 05 |
| 671 |
|
|
'Century: %CC;, Year: %YY;, Month: %MM;'),"\n"; |
| 672 |
|
|
|
| 673 |
wakaba |
1.2 |
my $field_body = '04 Feb 2002 00:12:33 CST'; |
| 674 |
|
|
my $field = Message::Field::Date->parse ($field_body); |
| 675 |
wakaba |
1.1 |
|
| 676 |
wakaba |
1.9 |
print "RFC 2822:\t", $field->stringify (-format => 'mail-rfc2822'), "\n"; |
| 677 |
|
|
print "HTTP preferred:\t", $field->stringify (-format => 'http-1.1'), "\n"; |
| 678 |
|
|
print "ISO 8601:\t", $field->stringify (-format => 'mail-cpim'), "\n"; |
| 679 |
|
|
## RFC 2822: Mon, 04 Feb 2002 00:12:33 -0600 |
| 680 |
|
|
## HTTP preferred: Mon, 04 Feb 2002 06:12:33 GMT |
| 681 |
|
|
## ISO 8601: 2002-02-04T00:12:33-06:00 |
| 682 |
wakaba |
1.1 |
|
| 683 |
|
|
=head1 LICENSE |
| 684 |
|
|
|
| 685 |
|
|
Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>. |
| 686 |
|
|
|
| 687 |
|
|
This program is free software; you can redistribute it and/or modify |
| 688 |
|
|
it under the terms of the GNU General Public License as published by |
| 689 |
|
|
the Free Software Foundation; either version 2 of the License, or |
| 690 |
|
|
(at your option) any later version. |
| 691 |
|
|
|
| 692 |
|
|
This program is distributed in the hope that it will be useful, |
| 693 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 694 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 695 |
|
|
GNU General Public License for more details. |
| 696 |
|
|
|
| 697 |
|
|
You should have received a copy of the GNU General Public License |
| 698 |
|
|
along with this program; see the file COPYING. If not, write to |
| 699 |
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 700 |
|
|
Boston, MA 02111-1307, USA. |
| 701 |
|
|
|
| 702 |
|
|
=head1 CHANGE |
| 703 |
|
|
|
| 704 |
|
|
See F<ChangeLog>. |
| 705 |
wakaba |
1.9 |
$Date: 2002/05/08 09:11:31 $ |
| 706 |
wakaba |
1.1 |
|
| 707 |
|
|
=cut |
| 708 |
|
|
|
| 709 |
|
|
1; |
Parent Directory
| 
Revision Log