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| 1 |  |  |  |  |  |  | package Acme::ELLEDNERA::Utils; | 
| 2 |  |  |  |  |  |  |  | 
| 3 | 3 |  |  | 3 |  | 219015 | use 5.006; | 
|  | 3 |  |  |  |  | 30 |  | 
| 4 | 3 |  |  | 3 |  | 16 | use strict; | 
|  | 3 |  |  |  |  | 6 |  | 
|  | 3 |  |  |  |  | 82 |  | 
| 5 | 3 |  |  | 3 |  | 16 | use warnings; | 
|  | 3 |  |  |  |  | 6 |  | 
|  | 3 |  |  |  |  | 185 |  | 
| 6 |  |  |  |  |  |  |  | 
| 7 |  |  |  |  |  |  | =head1 NAME | 
| 8 |  |  |  |  |  |  |  | 
| 9 |  |  |  |  |  |  | Acme::ELLEDNERA::Utils - Done for the sake of learning :) | 
| 10 |  |  |  |  |  |  |  | 
| 11 |  |  |  |  |  |  | =head1 VERSION | 
| 12 |  |  |  |  |  |  |  | 
| 13 |  |  |  |  |  |  | Version 0.02 | 
| 14 |  |  |  |  |  |  |  | 
| 15 |  |  |  |  |  |  | =cut | 
| 16 |  |  |  |  |  |  |  | 
| 17 |  |  |  |  |  |  | our $VERSION = '0.02'; | 
| 18 |  |  |  |  |  |  |  | 
| 19 |  |  |  |  |  |  |  | 
| 20 |  |  |  |  |  |  | =head1 SYNOPSIS | 
| 21 |  |  |  |  |  |  |  | 
| 22 |  |  |  |  |  |  | This module allows you to do addition and shuffle an array. | 
| 23 |  |  |  |  |  |  |  | 
| 24 |  |  |  |  |  |  | use Acme::ELLEDNERA::Utils qw( sum shuffle ); | 
| 25 |  |  |  |  |  |  |  | 
| 26 |  |  |  |  |  |  | # or | 
| 27 |  |  |  |  |  |  |  | 
| 28 |  |  |  |  |  |  | # use Acme::ELLEDNERA::Utils ":all"; | 
| 29 |  |  |  |  |  |  |  | 
| 30 |  |  |  |  |  |  | # addition | 
| 31 |  |  |  |  |  |  |  | 
| 32 |  |  |  |  |  |  | $sum = sum(1, 2, 3); | 
| 33 |  |  |  |  |  |  |  | 
| 34 |  |  |  |  |  |  | $sum = sum(1.2 + 3.14159); | 
| 35 |  |  |  |  |  |  |  | 
| 36 |  |  |  |  |  |  | $sum = sum( qw(t1 10 t2 5 6) ); # will only do 10+5+6 = 21 | 
| 37 |  |  |  |  |  |  |  | 
| 38 |  |  |  |  |  |  | # shuffling an array | 
| 39 |  |  |  |  |  |  |  | 
| 40 |  |  |  |  |  |  | @ori_nums = (1, 3, 5, 7, 9, 11, 13, 15); | 
| 41 |  |  |  |  |  |  |  | 
| 42 |  |  |  |  |  |  | @shuffled = shuffle(@ori_nums); # returns a shuffled array | 
| 43 |  |  |  |  |  |  |  | 
| 44 |  |  |  |  |  |  | =cut | 
| 45 |  |  |  |  |  |  |  | 
| 46 | 3 |  |  | 3 |  | 21 | use Exporter qw(import); | 
|  | 3 |  |  |  |  | 7 |  | 
|  | 3 |  |  |  |  | 866 |  | 
| 47 |  |  |  |  |  |  | our @EXPORT_OK = qw( sum shuffle ); | 
| 48 |  |  |  |  |  |  | our %EXPORT_TAGS = ( all => [@EXPORT_OK] ); | 
| 49 |  |  |  |  |  |  |  | 
| 50 |  |  |  |  |  |  | =head1 EXPORT | 
| 51 |  |  |  |  |  |  |  | 
| 52 |  |  |  |  |  |  | None by default | 
| 53 |  |  |  |  |  |  |  | 
| 54 |  |  |  |  |  |  | =head1 SUBROUTINES/METHODS | 
| 55 |  |  |  |  |  |  |  | 
| 56 |  |  |  |  |  |  | =head2 sum | 
| 57 |  |  |  |  |  |  |  | 
| 58 |  |  |  |  |  |  | Obtains the sum of a list of numbers. If no numbers are passed in, it will return an empty list. | 
| 59 |  |  |  |  |  |  | A mixture of numbers and non-numerics will work too. However, complex and scientific | 
| 60 |  |  |  |  |  |  | numbers are not supported. | 
| 61 |  |  |  |  |  |  |  | 
| 62 |  |  |  |  |  |  | =cut | 
| 63 |  |  |  |  |  |  |  | 
| 64 |  |  |  |  |  |  | sub sum { | 
| 65 | 5 |  |  | 5 | 1 | 625 | my @valid_nums = grep { /\A-?\d+(?:\.\d+)?\z/ } @_; # 这个是我自己的 | 
|  | 15 |  |  |  |  | 76 |  | 
| 66 |  |  |  |  |  |  |  | 
| 67 | 5 |  |  |  |  | 10 | my $sum; | 
| 68 | 5 |  |  |  |  | 11 | for ( @valid_nums ) { | 
| 69 | 11 |  |  |  |  | 19 | $sum += $_; | 
| 70 |  |  |  |  |  |  | } | 
| 71 |  |  |  |  |  |  |  | 
| 72 |  |  |  |  |  |  | $sum | 
| 73 | 5 |  |  |  |  | 22 | } | 
| 74 |  |  |  |  |  |  |  | 
| 75 |  |  |  |  |  |  | =head2 shuffle | 
| 76 |  |  |  |  |  |  |  | 
| 77 |  |  |  |  |  |  | Shuffle a list of anything :) This subroutine uses the Fisher Yates Shuffle algorithm. | 
| 78 |  |  |  |  |  |  | I just copied and pasted them from L | 
| 79 |  |  |  |  |  |  |  | 
| 80 |  |  |  |  |  |  | Unlike the original implementation, this subroutine takes in an actual array | 
| 81 |  |  |  |  |  |  | and returns a new shuffled one. It is the same one as in the of Intermediate | 
| 82 |  |  |  |  |  |  | Perl(2nd edition) | 
| 83 |  |  |  |  |  |  |  | 
| 84 |  |  |  |  |  |  | =cut | 
| 85 |  |  |  |  |  |  |  | 
| 86 |  |  |  |  |  |  | sub shuffle { | 
| 87 | 2 |  |  | 2 | 1 | 1326 | my @deck = @_; | 
| 88 | 2 | 100 |  |  |  | 8 | return unless @deck; | 
| 89 |  |  |  |  |  |  |  | 
| 90 | 1 |  |  |  |  | 3 | my $i = @deck; | 
| 91 | 1 |  |  |  |  | 4 | while (--$i) { | 
| 92 | 7 |  |  |  |  | 55 | my $j = int rand ($i+1); | 
| 93 | 7 |  |  |  |  | 20 | @deck[$i, $j] = @deck[$j, $i]; | 
| 94 |  |  |  |  |  |  | } | 
| 95 |  |  |  |  |  |  |  | 
| 96 | 1 |  |  |  |  | 5 | @deck; | 
| 97 |  |  |  |  |  |  | } | 
| 98 |  |  |  |  |  |  |  | 
| 99 |  |  |  |  |  |  | =head1 AUTHOR | 
| 100 |  |  |  |  |  |  |  | 
| 101 |  |  |  |  |  |  | Raphael Jun Jie Jong, C<<  >> | 
| 102 |  |  |  |  |  |  |  | 
| 103 |  |  |  |  |  |  | =head1 BUGS | 
| 104 |  |  |  |  |  |  |  | 
| 105 |  |  |  |  |  |  | Please report any bugs or feature requests to C, or through | 
| 106 |  |  |  |  |  |  | the web interface at L.  I will be notified, and then you'll | 
| 107 |  |  |  |  |  |  | automatically be notified of progress on your bug as I make changes. | 
| 108 |  |  |  |  |  |  |  | 
| 109 |  |  |  |  |  |  |  | 
| 110 |  |  |  |  |  |  |  | 
| 111 |  |  |  |  |  |  |  | 
| 112 |  |  |  |  |  |  | =head1 SUPPORT | 
| 113 |  |  |  |  |  |  |  | 
| 114 |  |  |  |  |  |  | You can find documentation for this module with the perldoc command. | 
| 115 |  |  |  |  |  |  |  | 
| 116 |  |  |  |  |  |  | perldoc Acme::ELLEDNERA::Utils | 
| 117 |  |  |  |  |  |  |  | 
| 118 |  |  |  |  |  |  |  | 
| 119 |  |  |  |  |  |  | You can also look for information at: | 
| 120 |  |  |  |  |  |  |  | 
| 121 |  |  |  |  |  |  | =over 4 | 
| 122 |  |  |  |  |  |  |  | 
| 123 |  |  |  |  |  |  | =item * RT: CPAN's request tracker (report bugs here) | 
| 124 |  |  |  |  |  |  |  | 
| 125 |  |  |  |  |  |  | L | 
| 126 |  |  |  |  |  |  |  | 
| 127 |  |  |  |  |  |  | =item * CPAN Ratings | 
| 128 |  |  |  |  |  |  |  | 
| 129 |  |  |  |  |  |  | L | 
| 130 |  |  |  |  |  |  |  | 
| 131 |  |  |  |  |  |  | =item * Search CPAN | 
| 132 |  |  |  |  |  |  |  | 
| 133 |  |  |  |  |  |  | L | 
| 134 |  |  |  |  |  |  |  | 
| 135 |  |  |  |  |  |  | =back | 
| 136 |  |  |  |  |  |  |  | 
| 137 |  |  |  |  |  |  |  | 
| 138 |  |  |  |  |  |  | =head1 ACKNOWLEDGEMENTS | 
| 139 |  |  |  |  |  |  |  | 
| 140 |  |  |  |  |  |  | Besiyata d'shmaya, Intermediate Perl 2nd Edition | 
| 141 |  |  |  |  |  |  |  | 
| 142 |  |  |  |  |  |  | =head1 LICENSE AND COPYRIGHT | 
| 143 |  |  |  |  |  |  |  | 
| 144 |  |  |  |  |  |  | This software is Copyright (c) 2021 by Raphael Jun Jie Jong. | 
| 145 |  |  |  |  |  |  |  | 
| 146 |  |  |  |  |  |  | This is free software, licensed under: | 
| 147 |  |  |  |  |  |  |  | 
| 148 |  |  |  |  |  |  | The Artistic License 2.0 (GPL Compatible) | 
| 149 |  |  |  |  |  |  |  | 
| 150 |  |  |  |  |  |  |  | 
| 151 |  |  |  |  |  |  | =cut | 
| 152 |  |  |  |  |  |  |  | 
| 153 |  |  |  |  |  |  | 1; # End of Acme::ELLEDNERA::Utils |