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package DBomb::Util; |
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=head1 NAME |
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DBomb::Util - Miscellany with no place else to go. |
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=head1 SYNOPSIS |
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=cut |
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use strict; |
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use warnings; |
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708
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our $VERSION = '$Revision: 1.4 $'; |
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use base qw(Exporter); |
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3931
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our %EXPORT_TAGS = ( all => [qw{ |
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ctx_0 is_same_value |
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}]); |
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Exporter::export_ok_tags('all'); |
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## returns @args if caller's caller is in list context, or $args[0] otherwise |
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## ctx_0(@args) |
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sub ctx_0 |
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{ |
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(caller(1))[5] ? @_ : $_[0]; |
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} |
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## like cmp but allows undef |
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sub is_same_value |
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{ |
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my ($a,$b) = @_; |
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## True if they are equal or if both undef |
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return ((defined($a) && defined($b) && $a eq $b) |
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|| (!defined($a) && !defined($b))); |
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} |
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1; |
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__END__ |