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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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wakaba |
1.13 |
$VERSION=do{my @r=(q$Revision: 1.12 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r}; |
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wakaba |
1.9 |
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 |
1.10 |
use overload '0+' => sub { $_[0]->{date_time} }, |
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fallback => 1; |
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wakaba |
1.1 |
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wakaba |
1.9 |
%REG = %Message::Util::REG; |
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$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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wakaba |
1.11 |
-fmt2str => { |
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wakaba |
1.9 |
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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}, |
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-use_comment => 1, |
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-use_military_zone => +1, ## +1 / -1 / 0 |
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wakaba |
1.13 |
#zone => [+1, 0, 0], |
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wakaba |
1.9 |
-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, |
128 |
wakaba |
1.8 |
SEP => 9, SEPTEMBER => 9, SEPT => 9, |
129 |
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 |
157 |
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EET => [+1, 2, 0], ## Eastern Europe 1947 |
158 |
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EST => [-1, 5, 0], ## (NA)Eastern Standard 733, 822 |
159 |
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EWT => [-1, 4, 0], ## U.S. Eastern War Time |
160 |
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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 |
168 |
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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], |
172 |
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 |
176 |
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JT => [+1, 7, 30], ## Java |
177 |
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KDT => [+1, 10, 0], ## Korean Daylight |
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KST => [+1, 9, 0], ## Korean Standard |
179 |
wakaba |
1.12 |
LOCAL => [-1, 0, 0], |
180 |
wakaba |
1.9 |
MDT => [-1, 6, 0], ## (NA)Mountain Daylight 733, 822 |
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MET => [+1, 0, 0], ## Middle European |
182 |
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METDST => [+1, 2, 0], |
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MEST => [+1, 2, 0], ## Middle European Summer |
184 |
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MEWT => [+1, 0, 0], ## Middle European Winter |
185 |
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MEZ => [+1, 0, 0], ## Central European (German) |
186 |
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MST => [-1, 7, 0], ## (NA)Mountain Standard 733, 822 |
187 |
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NDT => [-1, 2, 30], ## Newfoundland Daylight |
188 |
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NFT => [-1, 3, 30], ## Newfoundland Standard |
189 |
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NST => [-1, 3, 30], ## Newfoundland Standard 733 |
190 |
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#NST => [-1, 6, 30], ## North Sumatra |
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NT => [-1, 11, 0], ## Nome |
192 |
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NZD => [+1, 13, 0], ## New Zealand Daylight |
193 |
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NZT => [+1, 12, 0], ## New Zealand |
194 |
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NZDT => [+1, 13, 0], ## New Zealand Daylight |
195 |
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NZST => [+1, 12, 0], ## New Zealand Standard |
196 |
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PDT => [-1, 7, 0], ## (NA)Pacific Daylight 733, 822 |
197 |
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PST => [-1, 8, 0], ## (NA)Pacific Standard 733, 822 |
198 |
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SET => [+1, 1, 0], ## Seychelles |
199 |
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SST => [+1, 2, 0], ## Swedish Summer |
200 |
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#SST => [+1, 7, 0], ## South Sumatra |
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SWT => [+1, 1, 0], ## Swedish Winter |
202 |
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UKR => [+1, 2, 0], ## Ukraine |
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UT => [+1, 0, 0], ## 822 |
204 |
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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 |
208 |
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WST => [+1, 8, 0], ## West Australian Standard |
209 |
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YDT => [-1, 8, 0], ## Yukon Daylight 733 |
210 |
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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 |
215 |
wakaba |
1.1 |
); |
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217 |
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) |
220 |
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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). |
227 |
wakaba |
1.1 |
|
228 |
wakaba |
1.9 |
sub _set_military_zone_name ($) { |
229 |
wakaba |
1.1 |
my $self = shift; |
230 |
wakaba |
1.9 |
my $mode = $self->{option}->{use_military_zone}; |
231 |
wakaba |
1.1 |
my $i = 0; |
232 |
wakaba |
1.9 |
if ($mode == 0) { |
233 |
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for my $letter ('A'..'Y') {$ZONE{$letter} = [-1, 0, 0]} return; |
234 |
wakaba |
1.1 |
} |
235 |
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for my $letter ('Z', 'A'..'I', 'K'..'M') { |
236 |
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$ZONE{$letter} = [+1*$mode, $i++, 0]; |
237 |
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} $i = 1; |
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for my $letter ('N'..'Y') { |
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$ZONE{$letter} = [-1*$mode, $i++, 0]; |
240 |
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} |
241 |
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} |
242 |
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243 |
wakaba |
1.9 |
sub _init ($;%) { |
244 |
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my $self = shift; |
245 |
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my $DEFAULT = Message::Util::make_clone (\%DEFAULT); |
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my %option = @_; |
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$self->SUPER::_init (%$DEFAULT, %option); |
248 |
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$self->{date_time} = $option{unix} if defined $option{unix}; |
249 |
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$self->{secfrac} = $option{frac} if defined $option{frac}; |
250 |
wakaba |
1.13 |
unless (ref $self->{option}->{zone}) { |
251 |
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my $zone = $self->{option}->{zone} || ''; #$main::ENV{TZ} || ''; |
252 |
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## Since _zone_string_to_array does not provide full support |
253 |
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## of parsing TZ format (eg. daytime), not seeing it might be |
254 |
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## better way. |
255 |
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if (length $zone) { |
256 |
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$self->{option}->{zone} = [ $self->_zone_string_to_array ($zone) ]; |
257 |
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} else { |
258 |
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my $time = time; |
259 |
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my $ltime = timegm_nocheck (localtime ($time)); |
260 |
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my $o = int ( ($ltime - $time) / 60); |
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my @zone; |
262 |
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$zone[2] = $o % 60; $o = int ( $o / 60 ); |
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$zone[1] = $o % 24; |
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$zone[0] = $o >= 0 ? +1 : -1; |
265 |
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$self->{option}->{zone} = \@zone; |
266 |
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} |
267 |
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} |
268 |
wakaba |
1.9 |
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my $format = $self->{option}->{format}; |
270 |
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if ($format =~ /rfc2822/) { |
271 |
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$self->{option}->{use_military_zone} = 0; |
272 |
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} |
273 |
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274 |
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$self->_set_military_zone_name; |
275 |
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} |
276 |
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277 |
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=item $date = Message::Field::Date->new ([%options]) |
278 |
wakaba |
1.1 |
|
279 |
wakaba |
1.9 |
Constructs a new object. You might pass some options as parameters |
280 |
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to the constructor. |
281 |
wakaba |
1.1 |
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=cut |
283 |
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284 |
wakaba |
1.9 |
## Inherited |
285 |
wakaba |
1.1 |
|
286 |
wakaba |
1.9 |
=item $date = Message::Field::Date->parse ($field-body, [%options]) |
287 |
wakaba |
1.1 |
|
288 |
wakaba |
1.9 |
Constructs a new object with given field body. You might pass |
289 |
|
|
some options as parameters to the constructor. |
290 |
wakaba |
1.1 |
|
291 |
|
|
=cut |
292 |
|
|
|
293 |
|
|
sub parse ($$;%) { |
294 |
wakaba |
1.9 |
my $class = shift; |
295 |
|
|
my $self = bless {}, $class; |
296 |
|
|
my $body = shift; |
297 |
|
|
$self->_init (@_); |
298 |
|
|
($body, @{$self->{comment}}) |
299 |
|
|
= $self->Message::Util::delete_comment_to_array ($body) |
300 |
|
|
if $self->{option}->{use_comment}; |
301 |
|
|
$body =~ s/^$REG{WSP}+//; $body =~ s/$REG{WSP}+$//; |
302 |
|
|
if ($self->{option}->{date_format} eq 'unix') { |
303 |
|
|
$self->{date_time} = int ($body); |
304 |
wakaba |
1.13 |
} elsif (!$body) { |
305 |
|
|
return $self; |
306 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_rfc822}$/x) { |
307 |
wakaba |
1.1 |
my ($day, $month, $year, $hour, $minute, $second, $zone) |
308 |
|
|
= ($1, uc $2, $3, $4, $5, $6, uc $7); |
309 |
|
|
$month = $MONTH{$month} || 1; |
310 |
wakaba |
1.9 |
$year = $self->_obvious_year ($year) if length($year)<4; |
311 |
wakaba |
1.1 |
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
312 |
|
|
eval '$self->{date_time} = timegm_nocheck |
313 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
314 |
|
|
$day, $month-1, $year);'; |
315 |
wakaba |
1.2 |
$self->{secfrac} = ''; |
316 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
317 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_iso8601}$/x) { |
318 |
|
|
my ($year,$month,$day,$hour,$minute,$second,$secfrac,$zone) |
319 |
|
|
= ($1, $2, $3, $4, $5, $6, $7, $8); |
320 |
|
|
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
321 |
wakaba |
1.2 |
eval '$self->{date_time} = timegm_nocheck |
322 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
323 |
|
|
$day, $month-1, $year);'; |
324 |
|
|
$self->{secfrac} = $secfrac; |
325 |
wakaba |
1.1 |
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
326 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_rfc733}$/x) { |
327 |
wakaba |
1.1 |
my ($day, $month, $year, $hour, $minute, $second, $zone) |
328 |
|
|
= ($1, uc $2, $3, $4, $5, $6, uc $7); |
329 |
|
|
$month = $MONTH{$month} || 1; |
330 |
wakaba |
1.9 |
$year = $self->_obvious_year ($year) if length($year)<4; |
331 |
wakaba |
1.1 |
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
332 |
|
|
eval '$self->{date_time} = timegm_nocheck |
333 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
334 |
|
|
$day, $month-1, $year);'; |
335 |
wakaba |
1.2 |
$self->{secfrac} = ''; |
336 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
337 |
wakaba |
1.9 |
} elsif ($body =~ /^$REG{M_dt_rfc724}$/x) { |
338 |
wakaba |
1.2 |
my ($month, $day, $year, $hour, $minute, $second, $zone) |
339 |
|
|
= ($1, $2, $3, $4, $5, $6, uc $7); |
340 |
wakaba |
1.9 |
$year = $self->_obvious_year ($year) if length($year)<4; |
341 |
wakaba |
1.2 |
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
342 |
|
|
eval '$self->{date_time} = timegm_nocheck |
343 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
344 |
|
|
$day, $month-1, $year);'; |
345 |
|
|
$self->{secfrac} = ''; |
346 |
wakaba |
1.1 |
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
347 |
wakaba |
1.9 |
#} elsif ($body =~ /^[0-9]+$/) { |
348 |
|
|
# $self->{date_time} = $&; |
349 |
wakaba |
1.1 |
} else { |
350 |
wakaba |
1.9 |
## From HTTP::Date (revision 1.40) by Gisle Aas |
351 |
|
|
#$body =~ s/^\s+//; # kill leading space |
352 |
|
|
$body =~ s/^(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)[a-z]*,?\s*//i; # Useless weekday |
353 |
|
|
my ($day, $month, $year, $hour, $minute, $second); |
354 |
|
|
my ($secfrac, $zone, $ampm) = ('', $self->{option}->{zone_default_string}); |
355 |
|
|
|
356 |
|
|
# Then we are able to check for most of the formats with this regexp |
357 |
|
|
(($day,$month,$year,$hour,$minute,$second,$zone) = |
358 |
|
|
$body =~ m"^ |
359 |
|
|
(\d\d?) # day |
360 |
|
|
(?:\s+|[-\/]) |
361 |
|
|
(\w+) # month |
362 |
|
|
(?:\s+|[-\/]) |
363 |
|
|
(\d+) # year |
364 |
|
|
(?: |
365 |
|
|
(?:\s+|:) # separator before clock |
366 |
|
|
(\d\d?):(\d\d) # hour:min |
367 |
|
|
(?::(\d\d))? # optional seconds |
368 |
|
|
)? # optional clock |
369 |
|
|
\s* |
370 |
|
|
([-+]?\d{2,4}|(?![APap][Mm]\b)[A-Za-z]+)? # timezone |
371 |
|
|
$"x) |
372 |
|
|
|
373 |
|
|
|| |
374 |
|
|
|
375 |
|
|
# Try the ctime and asctime format |
376 |
|
|
(($month, $day, $hour, $minute, $second, $zone, $year) = |
377 |
|
|
$body =~ m"^ |
378 |
|
|
(\w{1,3}) # month |
379 |
|
|
\s+ |
380 |
|
|
(\d\d?) # day |
381 |
|
|
\s+ |
382 |
|
|
(\d\d?):(\d\d) # hour:min |
383 |
|
|
(?::(\d\d))? # optional seconds |
384 |
|
|
\s+ |
385 |
|
|
(?:([A-Za-z]+)\s+)? # optional timezone |
386 |
|
|
(\d+) # year |
387 |
|
|
$"x) |
388 |
|
|
|
389 |
|
|
|| |
390 |
|
|
|
391 |
|
|
# Then the Unix 'ls -l' date format |
392 |
|
|
(($month, $day, $year, $hour, $minute, $second) = |
393 |
|
|
$body =~ m"^ |
394 |
|
|
(\w{3}) # month |
395 |
|
|
\s+ |
396 |
|
|
(\d\d?) # day |
397 |
|
|
\s+ |
398 |
|
|
(?: |
399 |
|
|
(\d\d\d\d) | # year |
400 |
|
|
(\d{1,2}):(\d{2}) # hour:min |
401 |
|
|
(?::(\d\d))? # optional seconds |
402 |
|
|
) |
403 |
|
|
$"x) |
404 |
|
|
|
405 |
|
|
|| |
406 |
|
|
|
407 |
|
|
# ISO 8601 format '1996-02-29 12:00:00 -0100' and variants |
408 |
|
|
(($year, $month, $day, $hour, $minute, $second, $secfrac, $zone) = |
409 |
|
|
$body =~ m"^ |
410 |
|
|
(\d{4}) # year |
411 |
|
|
[-\/]? |
412 |
|
|
(\d\d?) # numerical month |
413 |
|
|
[-\/]? |
414 |
|
|
(\d\d?) # day |
415 |
|
|
(?: |
416 |
|
|
(?:\s+|[-:Tt]) # separator before clock |
417 |
|
|
(\d\d?):?(\d\d) # hour:min |
418 |
|
|
(?: |
419 |
|
|
:? |
420 |
|
|
(\d\d) |
421 |
|
|
(?:\.?(\d+))? ## optional second frac. |
422 |
|
|
)? # optional seconds |
423 |
|
|
)? # optional clock |
424 |
|
|
\s* |
425 |
|
|
([-+]?\d\d?:?(:?\d\d)? |
426 |
|
|
|Z|z)? # timezone (Z is 'zero meridian', i.e. GMT) |
427 |
|
|
|
428 |
|
|
$"x) |
429 |
|
|
|
430 |
|
|
|| |
431 |
|
|
|
432 |
|
|
# ISO 8601 like format '96-02-29 2:0:0 -0100' and variants |
433 |
|
|
(($year, $month, $day, $hour, $minute, $second, $secfrac, $zone) = |
434 |
|
|
$body =~ m"^ |
435 |
|
|
(\d+) # year |
436 |
|
|
[-/] |
437 |
|
|
(\d\d?) # numerical month |
438 |
|
|
[-/] |
439 |
|
|
(\d\d?) # day |
440 |
|
|
(?: |
441 |
|
|
(?:\s+|[-:Tt]) # separator before clock |
442 |
|
|
(\d\d?):(\d+) # hour:min |
443 |
|
|
(?: |
444 |
|
|
: |
445 |
|
|
(\d+) |
446 |
|
|
(?:\.(\d+)) ## optional second frac. |
447 |
|
|
)? # optional seconds |
448 |
|
|
)? # optional clock |
449 |
|
|
\s* |
450 |
|
|
([-+]?\d+(:\d+)? |
451 |
|
|
|Z|z)? # timezone (Z is 'zero meridian', i.e. GMT) |
452 |
|
|
|
453 |
|
|
$"x) |
454 |
|
|
|
455 |
|
|
|| |
456 |
|
|
|
457 |
|
|
# Windows 'dir' 11-12-96 03:52PM |
458 |
|
|
(($month, $day, $year, $hour, $minute, $ampm) = |
459 |
|
|
$body =~ m"^ |
460 |
|
|
(\d{2}) # numerical month |
461 |
|
|
- |
462 |
|
|
(\d{2}) # day |
463 |
|
|
- |
464 |
|
|
(\d{2}) # year |
465 |
|
|
\s+ |
466 |
|
|
(\d\d?):(\d\d)([APap][Mm]) # hour:min AM or PM |
467 |
|
|
$"x) |
468 |
|
|
|
469 |
|
|
#|| |
470 |
|
|
#return; # unrecognized format |
471 |
|
|
; |
472 |
|
|
|
473 |
|
|
$day ||= 1; |
474 |
|
|
# Translate month name to number |
475 |
wakaba |
1.12 |
$month ||= 1; |
476 |
wakaba |
1.9 |
$month = $MONTH{uc $month} |
477 |
wakaba |
1.12 |
|| int ($month); |
478 |
wakaba |
1.9 |
|
479 |
|
|
# If the year is missing, we assume first date before the current, |
480 |
|
|
# because of the formats we support such dates are mostly present |
481 |
|
|
# on "ls -l" listings. |
482 |
|
|
unless (defined $year) { |
483 |
|
|
my $cur_mon; |
484 |
|
|
($cur_mon, $year) = (localtime)[4, 5]; |
485 |
|
|
$year += 1900; $cur_mon++; |
486 |
|
|
$year-- if $month > $cur_mon; |
487 |
|
|
} elsif (length($year) < 3) { |
488 |
|
|
$year = $self->_obvious_year ($year); |
489 |
|
|
} |
490 |
|
|
|
491 |
|
|
# Make sure clock elements are defined |
492 |
|
|
$hour = 0 unless defined($hour); |
493 |
|
|
$minute = 0 unless defined($minute); |
494 |
|
|
$second = 0 unless defined($second); |
495 |
|
|
|
496 |
|
|
# Compensate for AM/PM |
497 |
|
|
if ($ampm) { |
498 |
|
|
$ampm = uc $ampm; |
499 |
|
|
$hour = 0 if $hour == 12 && $ampm eq 'AM'; |
500 |
|
|
$hour += 12 if $ampm eq 'PM' && $hour != 12; |
501 |
|
|
} |
502 |
|
|
|
503 |
|
|
my ($zone_sign, $zone_hour, $zone_minute) = $self->_zone_string_to_array ($zone); |
504 |
|
|
eval '$self->{date_time} = timegm_nocheck |
505 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
506 |
|
|
$day, $month-1, $year);'; |
507 |
|
|
$self->{secfrac} = $secfrac; |
508 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
509 |
wakaba |
1.1 |
} |
510 |
|
|
$self; |
511 |
|
|
} |
512 |
|
|
|
513 |
wakaba |
1.10 |
sub zone ($;$) { |
514 |
|
|
my $self = shift; |
515 |
|
|
my $newzone = shift; |
516 |
wakaba |
1.12 |
if (ref $newzone) { |
517 |
|
|
$self->{option}->{zone} = $newzone; |
518 |
|
|
} elsif (length $newzone) { |
519 |
wakaba |
1.10 |
$self->{option}->{zone} = [$self->_zone_string_to_array ($newzone)]; |
520 |
|
|
} |
521 |
|
|
$self->{option}->{zone}; |
522 |
|
|
} |
523 |
|
|
|
524 |
wakaba |
1.9 |
## Find "obvious" year |
525 |
|
|
sub _obvious_year ($$) { |
526 |
|
|
my $self = shift; |
527 |
|
|
my $year = shift; |
528 |
|
|
if ($self->{option}->{format} =~ /mail|news/) { |
529 |
|
|
## RFC 2822 |
530 |
|
|
if ( 0 <=$year && $year < 50) {$year += 2000} |
531 |
|
|
elsif (50 < $year && $year < 1000) {$year += 1900} |
532 |
|
|
} else { |
533 |
|
|
## RFC 2616 |
534 |
|
|
my $cur_yr = (localtime)[5] + 1900; |
535 |
|
|
my $m = $cur_yr % 100; |
536 |
|
|
my $tmp = $year; |
537 |
|
|
$year += $cur_yr - $m; |
538 |
|
|
$m -= $tmp; |
539 |
|
|
$year += ($m > 0) ? 100 : -100 if abs($m) > 50; |
540 |
|
|
} |
541 |
|
|
$year; |
542 |
|
|
} |
543 |
|
|
|
544 |
|
|
=back |
545 |
|
|
|
546 |
|
|
=head1 METHODS |
547 |
|
|
|
548 |
|
|
=over 4 |
549 |
|
|
|
550 |
|
|
|
551 |
wakaba |
1.4 |
=head2 $self->unix_time ([$new_time]) |
552 |
|
|
|
553 |
|
|
Returns or set the unix-time (seconds from the Epoch). |
554 |
|
|
|
555 |
|
|
=cut |
556 |
|
|
|
557 |
|
|
sub unix_time ($;$) { |
558 |
|
|
my $self = shift; |
559 |
|
|
my $new_time = shift; |
560 |
|
|
if (defined $new_time) { |
561 |
wakaba |
1.6 |
$self->{date_time} = $new_time + 0; |
562 |
wakaba |
1.4 |
} |
563 |
|
|
$self->{date_time}; |
564 |
|
|
} |
565 |
|
|
|
566 |
wakaba |
1.10 |
sub set_datetime ($@) { |
567 |
|
|
my $self = shift; |
568 |
|
|
my ($year,$month,$day,$hour,$minute,$second,%misc) = @_; |
569 |
|
|
my ($zone_sign, $zone_hour, $zone_minute) |
570 |
|
|
= $self->_zone_string_to_array ($misc{zone}); |
571 |
|
|
eval '$self->{date_time} = timegm_nocheck |
572 |
|
|
($second, $minute-($zone_sign*$zone_minute), $hour-($zone_sign*$zone_hour), |
573 |
|
|
$day, $month-1, $year);'; |
574 |
|
|
$self->{secfrac} = $misc{secfrac}; |
575 |
|
|
$self->{option}->{zone} = [$zone_sign, $zone_hour, $zone_minute]; |
576 |
|
|
} |
577 |
|
|
|
578 |
wakaba |
1.2 |
=head2 $self->second_fraction ([$new_fraction]) |
579 |
|
|
|
580 |
|
|
Returns or set the decimal fraction of a second. |
581 |
|
|
Value is a string containing of only [0-9] |
582 |
|
|
or empty string. |
583 |
|
|
|
584 |
|
|
=cut |
585 |
|
|
|
586 |
|
|
sub second_fraction ($;$) { |
587 |
|
|
my $self = shift; |
588 |
|
|
my $new_fraction = shift; |
589 |
|
|
if (defined $new_fraction) { |
590 |
|
|
$self->{secfrac} = $new_fraction unless $new_fraction =~ /[^0-9]/; |
591 |
|
|
} |
592 |
|
|
$self->{secfrac}; |
593 |
|
|
} |
594 |
|
|
|
595 |
wakaba |
1.9 |
=item $field-body = $date->stringify () |
596 |
wakaba |
1.1 |
|
597 |
|
|
Returns C<field-body> as a string. |
598 |
|
|
|
599 |
|
|
=cut |
600 |
|
|
|
601 |
wakaba |
1.2 |
sub stringify ($;%) { |
602 |
wakaba |
1.1 |
my $self = shift; |
603 |
wakaba |
1.9 |
my %o = @_; |
604 |
|
|
my %option = %{$self->{option}}; |
605 |
|
|
for (grep {/^-/} keys %o) {$option{substr ($_, 1)} = $o{$_}} |
606 |
|
|
unless ($option{format_template}) { |
607 |
|
|
if ($option{format} =~ /rfc2822|rfc1123|son-of-rfc1036|usefor|mime/) { |
608 |
|
|
$option{format_template} = '%Wdy(local);, %DD(local); %Mon(local); %YYYY(local); %HH(local);:%TT(local);:%SS(local); %zsign;%zHH;%zTT;'; |
609 |
|
|
} elsif ($option{format} =~ /http/) { |
610 |
|
|
$option{format_template} = '%Wdy;, %DD; %Mon; %YYYY; %HH;:%TT;:%SS; GMT'; |
611 |
|
|
} elsif ($option{format} =~ /rfc822|rfc1036/) { |
612 |
|
|
$option{format_template} = '%Wdy(local);, %DD(local); %Mon(local); %YY(local); (%YYYY(local);) %HH(local);:%TT(local);:%SS(local); %zsign;%zHH;%zTT;'; |
613 |
|
|
} elsif ($option{format} =~ /rfc850/) { |
614 |
|
|
$option{format_template} = '%Weekday;, %DD;-%Mon;-%YY; %HH;:%TT;:%SS; GMT'; |
615 |
|
|
} elsif ($option{format} =~ /asctime/) { |
616 |
|
|
$option{format_template} = '%Wdy; %Mon; %DD(pad=>SP); %HH;:%MM;:%SS; %YYYY;'; |
617 |
|
|
#} elsif ($option{format} =~ /date\(1\)/) { |
618 |
|
|
# $option{format_template} = '%Wdy; %Mon; %DD(pad=>SP); %HH;:%MM;:%SS; GMT %YYYY;'; |
619 |
|
|
} elsif ($option{format} =~ /un[i*]x/) { ## :-) |
620 |
|
|
$option{format_template} = '%unix;'; |
621 |
|
|
} else { ## ISO 8601 (IETF) |
622 |
|
|
$option{format_template} = '%YYYY(local);-%MM(local);-%DD(local);T%HH(local);:%TT(local);:%SS(local);%frac(prefix=>.);%zsign;%zHH;:%zTT;'; |
623 |
|
|
} |
624 |
wakaba |
1.2 |
} |
625 |
wakaba |
1.9 |
$self->_date2str (\%option) |
626 |
|
|
. (($option{output_comment} && @{$self->{comment}} > 0)? |
627 |
|
|
' ' . $self->_comment_stringify: ''); |
628 |
|
|
} |
629 |
|
|
*as_string = \&stringify; |
630 |
|
|
*as_plain_string = \&stringify; |
631 |
wakaba |
1.10 |
## You should use stringify instead of as_rfc2822_time |
632 |
|
|
sub as_rfc2822_time ($@) { |
633 |
|
|
shift->stringify (-format => 'mail-rfc2822', @_); |
634 |
|
|
} |
635 |
wakaba |
1.9 |
|
636 |
wakaba |
1.12 |
sub _date2str ($\%\%) { |
637 |
wakaba |
1.9 |
my $self = shift; |
638 |
|
|
my $option = shift; |
639 |
wakaba |
1.12 |
my $gparam = shift; |
640 |
wakaba |
1.11 |
my $template = $option->{format_template}; |
641 |
|
|
my $time = $self->{date_time}; |
642 |
|
|
$time = $option->{date_time} if defined $option->{date_time}; |
643 |
|
|
my $zone = $option->{zone}; |
644 |
wakaba |
1.12 |
if (ref $zone) { } |
645 |
wakaba |
1.9 |
elsif (length $zone) {$zone = [$self->_zone_string_to_array ($zone)]} |
646 |
|
|
my $l_time = $time + $zone->[0] * ($zone->[1] * 60 + $zone->[2]) * 60; |
647 |
|
|
my %time = (unix => $time, |
648 |
|
|
tm => [gmtime ($time)], |
649 |
|
|
l_unix => $l_time, |
650 |
|
|
l_tm => [gmtime ($l_time)], |
651 |
|
|
zone => $zone); |
652 |
|
|
$template =~ s{%([A-Za-z0-9_]+)(?:\(([A-Za-z0-9,.:\x09\x20=>_-]*)\))?;}{ |
653 |
|
|
my ($f, $a) = ($1, $2); |
654 |
wakaba |
1.11 |
my $function = $option->{fmt2str}->{$f}; |
655 |
wakaba |
1.9 |
if (ref $function) { |
656 |
|
|
my %a; |
657 |
|
|
for (split /[\x09\x20]*,[\x09\x20]*/, $a) { |
658 |
|
|
if (/^([^=]+)=>(.+)$/) {$a{$1} = $2} |
659 |
|
|
else {$a{$_} = 1} |
660 |
|
|
} |
661 |
|
|
$a{_prefix} = $a{local}? 'l_': ''; |
662 |
|
|
$a{_fmt} = $a{pad} eq 'SP'? '%2d': |
663 |
|
|
$a{pad} eq 'none'? '%d': |
664 |
|
|
'%02d'; |
665 |
wakaba |
1.12 |
my $r = &$function ($self, \%time, \%a, $gparam); |
666 |
wakaba |
1.9 |
length $r? $a{prefix}.$r.$a{suffix}: ''; |
667 |
|
|
} elsif (length $function) { |
668 |
|
|
$function; |
669 |
|
|
} else { |
670 |
|
|
"[$f: undef]"; |
671 |
|
|
} |
672 |
|
|
}gex; |
673 |
|
|
$template; |
674 |
wakaba |
1.1 |
} |
675 |
|
|
|
676 |
wakaba |
1.2 |
|
677 |
wakaba |
1.1 |
|
678 |
|
|
sub _zone_string_to_array ($$;$) { |
679 |
|
|
my $self = shift; |
680 |
|
|
my $zone = shift; |
681 |
wakaba |
1.12 |
return (+1, 0, 0) unless defined $zone; |
682 |
wakaba |
1.1 |
my $format = shift; |
683 |
|
|
my @azone = [+1, 0, 0]; |
684 |
wakaba |
1.9 |
$zone =~ tr/\x09\x20//d; |
685 |
wakaba |
1.13 |
if ($zone =~ /^[^0-9+-]+(?:([+-]?)([0-9]{1,2}))(?::([0-9]{1,2}))?/) { |
686 |
|
|
## $ENV{TZ} format, but is not fully supported |
687 |
|
|
my ($s, $h, $m) = ($1, $2, $3); |
688 |
|
|
$s ||= '+'; $s =~ tr/+-/-+/; |
689 |
|
|
@azone = ("${s}1", 0+$h, 0+$m); |
690 |
|
|
} elsif ($zone =~ /([+-])([0-9][0-9])([0-9][0-9])/) { |
691 |
wakaba |
1.9 |
@azone = ("${1}1", $2, $3); |
692 |
|
|
} elsif ($zone =~ /([+-]?)([0-9]+)(?:[:.-]([0-9]+))?/) { |
693 |
wakaba |
1.13 |
@azone = ("${1}1", $2, 0+$3); |
694 |
wakaba |
1.1 |
} else { $zone =~ tr/-//d; |
695 |
|
|
if (ref $ZONE{$zone}) {@azone = @{$ZONE{$zone}}} |
696 |
|
|
elsif ($zone) {@azone = (-1, 0, 0)} |
697 |
|
|
} |
698 |
|
|
# } |
699 |
|
|
@azone; |
700 |
|
|
} |
701 |
|
|
|
702 |
wakaba |
1.9 |
=item $option-value = $date->option ($option-name) |
703 |
|
|
|
704 |
|
|
Gets option value. |
705 |
|
|
|
706 |
|
|
=item $date->option ($option-name, $option-value, ...) |
707 |
|
|
|
708 |
|
|
Set option value(s). You can pass multiple option name-value pair |
709 |
|
|
as parameter when setting. |
710 |
|
|
|
711 |
|
|
=item $clone = $date->clone () |
712 |
|
|
|
713 |
|
|
Returns a copy of the object. |
714 |
|
|
|
715 |
|
|
=cut |
716 |
|
|
|
717 |
|
|
## option, clone, method_available: Inherited |
718 |
|
|
|
719 |
wakaba |
1.1 |
=head1 EXAMPLE |
720 |
|
|
|
721 |
wakaba |
1.2 |
use Message::Field::Date; |
722 |
wakaba |
1.1 |
|
723 |
wakaba |
1.9 |
print Message::Field::Date->new (unix => time, |
724 |
|
|
-zone => '+0900'),"\n"; ## Thu, 16 May 2002 17:53:44 +0900 |
725 |
|
|
print Message::Field::Date->new (unix => time, |
726 |
|
|
-format_template => ## Century: 21, Year: 02, Month: 05 |
727 |
|
|
'Century: %CC;, Year: %YY;, Month: %MM;'),"\n"; |
728 |
|
|
|
729 |
wakaba |
1.2 |
my $field_body = '04 Feb 2002 00:12:33 CST'; |
730 |
|
|
my $field = Message::Field::Date->parse ($field_body); |
731 |
wakaba |
1.1 |
|
732 |
wakaba |
1.9 |
print "RFC 2822:\t", $field->stringify (-format => 'mail-rfc2822'), "\n"; |
733 |
|
|
print "HTTP preferred:\t", $field->stringify (-format => 'http-1.1'), "\n"; |
734 |
|
|
print "ISO 8601:\t", $field->stringify (-format => 'mail-cpim'), "\n"; |
735 |
|
|
## RFC 2822: Mon, 04 Feb 2002 00:12:33 -0600 |
736 |
|
|
## HTTP preferred: Mon, 04 Feb 2002 06:12:33 GMT |
737 |
|
|
## ISO 8601: 2002-02-04T00:12:33-06:00 |
738 |
wakaba |
1.1 |
|
739 |
|
|
=head1 LICENSE |
740 |
|
|
|
741 |
|
|
Copyright 2002 wakaba E<lt>w@suika.fam.cxE<gt>. |
742 |
|
|
|
743 |
|
|
This program is free software; you can redistribute it and/or modify |
744 |
|
|
it under the terms of the GNU General Public License as published by |
745 |
|
|
the Free Software Foundation; either version 2 of the License, or |
746 |
|
|
(at your option) any later version. |
747 |
|
|
|
748 |
|
|
This program is distributed in the hope that it will be useful, |
749 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
750 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
751 |
|
|
GNU General Public License for more details. |
752 |
|
|
|
753 |
|
|
You should have received a copy of the GNU General Public License |
754 |
|
|
along with this program; see the file COPYING. If not, write to |
755 |
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
756 |
|
|
Boston, MA 02111-1307, USA. |
757 |
|
|
|
758 |
|
|
=head1 CHANGE |
759 |
|
|
|
760 |
|
|
See F<ChangeLog>. |
761 |
wakaba |
1.13 |
$Date: 2002/06/23 12:10:16 $ |
762 |
wakaba |
1.1 |
|
763 |
|
|
=cut |
764 |
|
|
|
765 |
|
|
1; |