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package Data::Munge; |
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681885
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use strict; |
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use warnings; |
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use Exporter 5.57 qw(import); |
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3223
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468
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sub _eval { eval $_[0] } # empty lexical scope |
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our $VERSION = '0.10'; |
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our @EXPORT = qw( |
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byval |
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elem |
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eval_string |
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list2re |
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mapval |
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rec |
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replace |
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slurp |
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submatches |
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trim |
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); |
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sub byval (&$) { |
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1
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1
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1
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6251
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my ($f, $x) = @_; |
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1
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local *_ = \$x; |
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1
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$f->($_); |
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1
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$x |
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} |
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sub elem { |
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1
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my ($k, $xs) = @_; |
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100
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if (ref $k) { |
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100
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for my $x (@$xs) { |
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100
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100
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return 1 if ref $x && $k == $x; |
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} |
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} elsif (defined $k) { |
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for my $x (@$xs) { |
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100
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100
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return 1 if defined $x && !ref $x && $k eq $x; |
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100
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} |
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} else { |
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1
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for my $x (@$xs) { |
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1
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return 1 if !defined $x; |
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} |
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} |
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59
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!1 |
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} |
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sub eval_string { |
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1
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7701
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my ($code) = @_; |
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my ($package, $file, $line) = caller; |
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local $Data::Munge::_err = $@; |
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$code = qq{\$\@ = \$Data::Munge::_err; package $package; # eval_string()\n#line $line "$file"\n$code}; |
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my @r = wantarray ? _eval $code : scalar _eval $code; |
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100
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93
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die $@ if $@; |
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5
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$@ = $Data::Munge::_err; |
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wantarray ? @r : $r[0] |
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} |
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58
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sub list2re { |
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5
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100
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1
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194
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@_ or return qr/(?!)/; |
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4
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my $re = join '|', map quotemeta, sort {length $b <=> length $a || $a cmp $b } @_; |
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52
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61
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4
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100
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$re eq '' and $re = '(?#)'; |
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4
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118
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qr/$re/ |
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} |
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65
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sub mapval (&@) { |
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1
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1
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1
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my $f = shift; |
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1
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4
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my @xs = @_; |
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1
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3
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map { $f->($_); $_ } @xs |
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3
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25
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69
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} |
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71
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if ($^V ge v5.16.0) { |
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3
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3
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28
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eval_string <<'EOT'; |
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18
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73
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use v5.16; |
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1
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1
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1
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3
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sub rec (&) { |
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11
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11
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494
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my ($f) = @_; |
76
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1
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4
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sub { $f->(__SUB__, @_) } |
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} |
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EOT |
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} elsif (eval { require Scalar::Util } && defined &Scalar::Util::weaken) { |
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*rec = sub (&) { |
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my ($f) = @_; |
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my $w; |
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my $r = $w = sub { $f->($w, @_) }; |
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Scalar::Util::weaken($w); |
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$r |
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}; |
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} else { |
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# slow but always works |
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*rec = sub (&) { |
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my ($f) = @_; |
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sub { $f->(&rec($f), @_) } |
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}; |
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} |
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95
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sub replace { |
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7
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7
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1
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my ($str, $re, $x, $g) = @_; |
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my $f = ref $x ? $x : sub { |
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28
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28
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my $r = $x; |
99
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28
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48
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$r =~ s{\$([\$&`'0-9]|\{([0-9]+)\})}{ |
100
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2
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18
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$+ eq '$' ? '$' : |
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50
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50
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101
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$+ eq '&' ? $_[0] : |
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$+ eq '`' ? substr($_[-1], 0, $_[-2]) : |
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$+ eq "'" ? substr($_[-1], $_[-2] + length $_[0]) : |
104
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$_[$+] |
105
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}eg; |
106
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28
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78
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$r |
107
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7
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100
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43
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}; |
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7
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100
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24
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if ($g) { |
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6
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40
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$str =~ s{$re}{ $f->(substr($str, $-[0], $+[0] - $-[0]), submatches(), $-[0], $str) }eg; |
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155
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110
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} else { |
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1
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$str =~ s{$re}{ $f->(substr($str, $-[0], $+[0] - $-[0]), submatches(), $-[0], $str) }e; |
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7
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112
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} |
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7
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64
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$str |
114
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} |
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116
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sub slurp { |
117
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1
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1
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1
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238
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local $/; |
118
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1
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30
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scalar readline $_[0] |
119
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} |
120
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121
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sub submatches { |
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3
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3
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24
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no strict 'refs'; |
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3
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5
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3
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450
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123
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33
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33
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1
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131
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map $$_, 1 .. $#+ |
124
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} |
125
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126
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sub trim { |
127
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9
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9
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1
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19
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my ($s) = @_; |
128
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9
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100
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21
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return undef if !defined $s; |
129
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8
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31
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$s =~ s/^\s+//; |
130
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8
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22
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$s =~ s/\s+\z//; |
131
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8
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38
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$s |
132
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} |
133
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134
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'ok' |
135
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136
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__END__ |