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package Array::KeepGrepped; |
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# ABSTRACT: Like grep, only keeps the stuff it filters out |
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our $VERSION = 5; |
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require Exporter; |
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@ISA = qw/Exporter/; |
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@EXPORT_OK = qw/kgrep/; |
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sub kgrep (&@) { |
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0
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my $filter = shift; |
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my $filtered = []; |
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my @keep; |
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local $_; |
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for (@_) { |
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100
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if ( $filter->() ) { |
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push @keep, $_; |
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} |
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else { |
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push @$filtered, $_; |
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} |
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} |
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return ($filtered, @keep); |
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} |
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1; |
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__END__ |