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package Scalar::Util::Numeric::PP; |
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our $DATE = '2015-04-12'; # DATE |
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our $VERSION = '0.02'; # VERSION |
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use 5.010001; |
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1
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7
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use strict; |
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use warnings; |
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require Exporter; |
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our @ISA = qw(Exporter); |
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our @EXPORT_OK = qw( |
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isint |
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isnum |
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isnan |
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isinf |
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isneg |
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isfloat |
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); |
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sub isint { |
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1
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local $_ = shift; |
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100
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return 0 unless defined; |
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100
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return 1 if /\A[+-]?(?:0|[1-9][0-9]*)\z/; |
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0; |
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} |
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sub isnan($) { |
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1
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local $_ = shift; |
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100
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return 0 unless defined; |
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100
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return 1 if /\A\s*[+-]?nan\s*\z/i; |
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0; |
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} |
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sub isinf($) { |
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1
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local $_ = shift; |
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100
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return 0 unless defined; |
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100
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return 1 if /\A\s*[+-]?inf(?:inity)?\s*\z/i; |
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0; |
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} |
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sub isneg($) { |
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1
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local $_ = shift; |
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6
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100
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return 0 unless defined; |
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5
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100
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return 1 if /\A\s*-/; |
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2
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0; |
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} |
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sub isnum($) { |
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1
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local $_ = shift; |
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100
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return 0 unless defined; |
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100
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return 1 if isint($_); |
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100
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return 1 if isfloat($_); |
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2
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0; |
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} |
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57
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sub isfloat($) { |
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1
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local $_ = shift; |
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21
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100
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return 0 unless defined; |
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20
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100
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66
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return 1 if /\A[+-]?(?:0|[1-9][0-9]*)(\.[0-9]+)?([eE][+-]?[0-9]+)?\z/ |
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66
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61
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&& $1 || $2; |
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12
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100
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100
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14
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return 1 if isnan($_) || isinf($_); |
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8
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14
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0; |
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} |
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66
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1; |
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# ABSTRACT: Pure-perl drop-in replacement/approximation of Scalar::Util::Numeric |
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69
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__END__ |