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package Sort::Sub::date_in_text; |
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our $DATE = '2016-12-16'; # DATE |
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our $VERSION = '0.003'; # VERSION |
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use 5.010001; |
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use strict; |
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use warnings; |
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use DateTime; |
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400453
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our $DATE_EXTRACT_MODULE = $ENV{PERL_DATE_EXTRACT_MODULE} // "Date::Extract"; |
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sub gen_sorter { |
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my ($is_reverse, $is_ci) = @_; |
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my $re_is_num = qr/\A |
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[+-]? |
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(?:\d+|\d*(?:\.\d*)?) |
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(?:[Ee][+-]?\d+)? |
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\z/x; |
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my $module = $DATE_EXTRACT_MODULE; |
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$module = "Date::Extract::$module" unless $module =~ /::/; |
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die "Invalid module '$module'" unless $module =~ /\A\w+(::\w+)*\z/; |
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eval "use $module"; die if $@; |
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my $parser = $module->new; |
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sub { |
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no strict 'refs'; |
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my $caller = caller(); |
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my $a = @_ ? $_[0] : ${"$caller\::a"}; |
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my $b = @_ ? $_[1] : ${"$caller\::b"}; |
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my $cmp; |
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# XXX cache |
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my $dt_a = $parser->extract($a); |
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warn "Found date $dt_a in $a\n" if $ENV{DEBUG} && $dt_a; |
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my $dt_b = $parser->extract($b); |
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warn "Found date $dt_b in $b\n" if $ENV{DEBUG} && $dt_b; |
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{ |
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if ($dt_a && $dt_b) { |
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$cmp = DateTime->compare($dt_a, $dt_b); |
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last if $cmp; |
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} elsif ($dt_a && !$dt_b) { |
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$cmp = -1; |
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last; |
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} elsif (!$dt_a && $dt_b) { |
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$cmp = 1; |
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last; |
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} |
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if ($is_ci) { |
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$cmp = lc($a) cmp lc($b); |
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} else { |
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$cmp = $a cmp $b; |
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} |
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} |
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$is_reverse ? -1*$cmp : $cmp; |
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}; |
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} |
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1; |
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# ABSTRACT: Sort by date found in text or (if no date is found) ascibetically |
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__END__ |
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=pod |
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=encoding UTF-8 |
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=head1 NAME |
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Sort::Sub::date_in_text - Sort by date found in text or (if no date is found) ascibetically |
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=head1 VERSION |
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This document describes version 0.003 of Sort::Sub::date_in_text (from Perl distribution Sort-Sub-date_in_text), released on 2016-12-16. |
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=head1 DESCRIPTION |
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The generated sort routine will sort by date found in text (extracted using |
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L<Date::Extract>) or (f no date is found in text) ascibetically. Items that have |
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a date will sort before items that do not. |
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=for Pod::Coverage ^(gen_sorter)$ |
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=head1 ENVIRONMENT |
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=head2 DEBUG => bool |
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If set to true, will print stuffs to stderr. |
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=head2 PERL_DATE_EXTRACT_MODULE => str |
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Set Date::Extract module to use (the default is L<Date::Extract>). |
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=head1 HOMEPAGE |
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Please visit the project's homepage at L<https://metacpan.org/release/Sort-Sub-date_in_text>. |
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=head1 SOURCE |
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Source repository is at L<https://github.com/perlancar/perl-Sort-Sub-date_in_text>. |
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=head1 BUGS |
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Please report any bugs or feature requests on the bugtracker website L<https://rt.cpan.org/Public/Dist/Display.html?Name=Sort-Sub-date_in_text> |
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When submitting a bug or request, please include a test-file or a |
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patch to an existing test-file that illustrates the bug or desired |
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feature. |
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=head1 SEE ALSO |
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=head1 AUTHOR |
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perlancar <perlancar@cpan.org> |
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=head1 COPYRIGHT AND LICENSE |
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This software is copyright (c) 2016 by perlancar@cpan.org. |
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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=cut |