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#!perl |
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package Math::BigInt::Named::German; |
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7555
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use 5.006001; |
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use strict; |
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69
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7
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14
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use warnings; |
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6
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3
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107
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335
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use Math::BigInt::Named; |
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6
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3
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26
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10
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our @ISA = qw< Math::BigInt::Named >; |
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our $VERSION = '0.06'; |
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sub name |
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{ |
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# output the name of the number |
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51
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51
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1
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9910
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my ($x) = shift; |
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51
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50
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130
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$x = Math::BigInt->new($x) unless ref($x); |
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20
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51
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71
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my $self = ref($x); |
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22
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51
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50
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131
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return '' if $x->is_nan(); |
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24
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51
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299
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my $index = 0; |
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26
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51
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70
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my $ret = ''; |
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51
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118
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my $y = $x->copy(); my $rem; |
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51
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1013
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28
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51
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100
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121
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if ($y->sign() eq '-') |
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{ |
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1
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7
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$ret = 'minus '; |
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1
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14
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$y->babs(); |
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32
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} |
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33
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51
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100
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367
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if ($y < 1000) |
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34
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{ |
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35
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44
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4752
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return $ret . $self->_triple($y,1,0); |
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} |
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37
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7
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891
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while (!$y->is_zero()) |
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38
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{ |
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14
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189
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($y,$rem) = $y->bdiv(1000); |
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40
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14
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3226
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$ret = $self->_triple($rem,0,$index) |
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.' ' . $self->_triple_name($index,$rem) . ' ' . $ret; |
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33
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$index++; |
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} |
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7
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114
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$ret =~ s/\s+$//; # trailing spaces |
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7
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44
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$ret; |
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} |
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48
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my $SMALL = [ qw/ |
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null |
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50
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eins |
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51
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zwei |
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52
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drei |
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53
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vier |
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54
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fuenf |
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55
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sechs |
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56
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sieben |
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57
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acht |
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neun |
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zehn |
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oelf |
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zwoelf |
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dreizehn |
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vierzehn |
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fuenfzehn |
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sechzehn |
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siebzehn |
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67
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achtzehn |
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68
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neunzehn |
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69
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/ ]; |
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70
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71
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my $ZEHN = [ qw / |
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zehn |
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zwanzig |
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dreissig |
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vierzig |
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fuenfzig |
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sechzig |
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siebzig |
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achtzig |
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neunzig |
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/ ]; |
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83
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my $HUNDERT = [ qw / |
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ein |
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zwei |
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drei |
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vier |
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fuenf |
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sechs |
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90
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sieben |
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acht |
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neun |
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/ ]; |
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95
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my $TRIPLE = [ qw / |
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mi |
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bi |
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tri |
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quadri |
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penti |
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hexi |
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septi |
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octi |
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104
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/ ]; |
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105
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106
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sub _triple_name |
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107
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{ |
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108
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49
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49
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829
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my ($self,$index,$number) = @_; |
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109
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110
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49
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100
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100
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176
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return '' if $index == 0 || $number->is_zero(); |
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111
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40
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100
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576
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return 'tausend' if $index == 1; |
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112
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113
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32
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49
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my $postfix = 'llion'; my $plural = 'en'; |
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32
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33
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114
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32
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100
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57
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if ($index & 1 == 1) |
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115
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{ |
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116
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16
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18
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$postfix = 'lliarde'; $plural = 'n'; |
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17
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117
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} |
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118
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32
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100
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61
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$postfix .= $plural unless $number->is_one(); |
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119
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32
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375
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$index -= 2; |
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120
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32
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123
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$TRIPLE->[$index >> 1] . $postfix; |
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} |
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123
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sub _triple |
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124
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{ |
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125
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# return name of a triple (aka >= 0, and <= 1000) |
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126
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# input: number >= 0, < 1000) |
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127
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# only true if triple is the only triple ever ($nr < 1000) |
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128
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# index 0 for last triple, 1 for tausend, 2 for million etc |
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129
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58
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58
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111
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my ($self,$number,$only,$index) = @_; |
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130
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131
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# eins, ein hundert, ein tausend, eine million |
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132
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# zwei, zwei hundert, zwei tausend, zwei million |
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133
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134
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58
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74
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my $eins = 'ein'; |
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135
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58
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100
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117
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$eins = 'eins' if $index == 0; |
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136
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58
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50
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108
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$eins = 'eine' if $index > 2; |
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137
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138
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58
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100
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100
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116
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return '' if $number->is_zero() && !$only; # 0 => null, but only for one |
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139
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57
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100
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731
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return $eins if $number->is_one(); |
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140
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47
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100
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613
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return $SMALL->[$number] if $number < scalar @$SMALL; # known name |
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141
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142
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27
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2848
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my $hundert = $number / 100; |
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143
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27
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5819
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my $rem = $number % 100; |
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144
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27
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4854
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my $rc = ''; |
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145
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27
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100
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59
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$rc = "$HUNDERT->[$hundert-1]hundert" if !$hundert->is_zero(); |
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146
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147
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27
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100
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4029
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my $concat = ''; $concat = 'und' if $rc ne ''; |
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27
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62
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148
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27
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100
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52
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return $rc if $rem->is_zero(); |
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149
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18
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100
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210
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return $rc . $concat . $SMALL->[$rem] if $rem < scalar @$SMALL; |
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150
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151
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15
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1560
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my $zehn; ($zehn,$rem) = $rem->bdiv(10); |
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15
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38
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152
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153
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15
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100
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3353
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$rc .= $concat . $HUNDERT->[$rem-1] if !$rem->is_zero(); # 31, 32.. |
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154
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15
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100
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3161
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$concat = ''; $concat = 'und' if $rc ne ''; |
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15
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78
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155
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15
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50
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35
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$rc .= $concat . $ZEHN->[$zehn-1] if !$zehn->is_zero(); # 1,2,3.. |
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156
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157
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15
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3508
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$rc; |
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158
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} |
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159
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160
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1; |
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161
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162
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__END__ |