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# Copyrights 2011-2020 by [Mark Overmeer]. |
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# For other contributors see ChangeLog. |
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# See the manual pages for details on the licensing terms. |
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# Pod stripped from pm file by OODoc 2.02. |
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# This code is part of distribution POSIX-1003. Meta-POD processed with |
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# OODoc into POD and HTML manual-pages. See README.md |
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# Copyright Mark Overmeer. Licensed under the same terms as Perl itself. |
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package POSIX::1003::Time; |
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use vars '$VERSION'; |
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$VERSION = '1.02'; |
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use base 'POSIX::1003::Module'; |
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use warnings; |
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use strict; |
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use POSIX::1003::Locale qw(setlocale LC_TIME); |
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use Encode qw(find_encoding is_utf8 decode); |
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our @IN_CORE = qw/gmtime localtime/; |
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my @constants; |
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my @functions = qw/ |
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asctime ctime strftime |
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clock difftime mktime |
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tzset tzname strptime/; |
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push @functions, @IN_CORE; |
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our %EXPORT_TAGS = |
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( constants => \@constants |
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, functions => \@functions |
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, tables => [ '%time' ] |
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); |
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my $time; |
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our %time; |
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BEGIN { |
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$time = time_table; |
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push @constants, keys %$time; |
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tie %time, 'POSIX::1003::ReadOnlyTable', $time; |
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} |
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sub _tm_flatten($) |
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{ my $tm = shift; |
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( $tm->{sec} // 0, $tm->{min} // 0, $tm->{hour} // 0 |
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, $tm->{day}-1, $tm->{month}-1, $tm->{year}-1900 |
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, $tm->{wday} // -1, $tm->{yday} // -1, $tm->{is_dst} // -1 |
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); |
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} |
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sub _tm_build($@) |
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{ my $tm = shift; |
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@{$tm}{qw/sec min hour day month year wday yday isdst/} = @_; |
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$tm->{month}++; |
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$tm->{year} += 1900; |
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$tm; |
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} |
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sub mktime(@) |
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{ my @p; |
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my $time; |
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if(@_==1) |
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{ my $tm = shift; |
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($time, my @t) = _mktime _tm_flatten $tm; |
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_tm_build $tm, @t if defined $time; # All fields may have changed |
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} |
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else |
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{ ($time) = _mktime @_; |
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} |
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$time; |
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} |
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sub strftime($@) |
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{ my $fmt = shift; |
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local @_ = _tm_flatten $_[0] if @_==1; |
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#XXX See https://github.com/abeltje/lc_time for the correct implementation, |
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# using nl_langinfo(CODESET) |
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my $lc = setlocale LC_TIME; |
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if($lc && $lc =~ m/\.([\w-]+)/ && (my $enc = find_encoding $1)) |
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{ # enforce the format string (may contain any text) to the same |
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# charset as the locale is using. |
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my $rawfmt = $enc->encode($fmt); |
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return $enc->decode(_strftime($rawfmt, @_)); |
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} |
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if(is_utf8($fmt)) |
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{ # no charset in locale, hence ascii inserts |
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my $out = _strftime(encode($fmt, 'utf8'), @_); |
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return decode $out, 'utf8'; |
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} |
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# don't know about the charset |
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_strftime($fmt, @_); |
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} |
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sub strptime($$) |
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{ return _strptime @_ |
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if wantarray; |
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my $tm = {}; |
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_tm_build $tm, _strptime @_; |
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} |
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sub _create_constant($) |
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{ my ($class, $name) = @_; |
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my $val = $time->{$name}; |
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sub () {$val}; |
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} |
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1; |