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<?php |
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/* |
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Condorcet PHP - Election manager and results calculator. |
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Designed for the Condorcet method. Integrating a large number of algorithms extending Condorcet. Expandable for all types of voting systems. |
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By Julien Boudry and contributors - MIT LICENSE (Please read LICENSE.txt) |
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https://github.com/julien-boudry/Condorcet |
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*/ |
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declare(strict_types=1); |
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namespace CondorcetPHP\Condorcet\ElectionProcess; |
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use CondorcetPHP\Condorcet\Throwable\CondorcetException; |
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// Base Condorcet class |
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abstract class VoteUtil |
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{ |
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public static function tagsConvert ($tags) : ?array |
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{ |
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if (empty($tags)) : |
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return null; |
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endif; |
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if (is_string($tags)) : |
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$tags = explode(',', $tags); |
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elseif (is_array($tags)) : |
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foreach ($tags as $key => &$oneTag) : |
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if (!is_string($oneTag)) : |
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throw new CondorcetException(17); |
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endif; |
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endforeach; |
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else : |
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throw new CondorcetException(17); |
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endif; |
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$tags = array_map('trim', $tags); |
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foreach ($tags as $oneTag) : |
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if (empty($oneTag)) : |
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throw new CondorcetException(17); |
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endif; |
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endforeach; |
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return $tags; |
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} |
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public static function getRankingAsString (array $ranking) : string |
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{ |
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foreach ($ranking as &$rank) : |
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if (is_array($rank)) : |
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sort($rank); |
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$rank = implode(' = ',$rank); |
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endif; |
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endforeach; |
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return implode(' > ', $ranking); |
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} |
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// From a string like 'A>B=C=H>G=T>Q' |
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public static function convertVoteInput (string $formula) : array |
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{ |
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$ranking = explode('>', $formula); |
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foreach ($ranking as &$rank_vote) : |
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$rank_vote = explode('=', $rank_vote); |
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// Del space at start and end |
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foreach ($rank_vote as &$value) : |
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$value = trim($value); |
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endforeach; |
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endforeach; |
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return $ranking; |
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} |
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public static function parseAnalysingOneLine ($searchCharacter, string &$line) : int |
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{ |
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if ($searchCharacter !== false) : |
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$value = trim( substr($line, $searchCharacter + 1) ); |
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// Errors |
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if ( !is_numeric($value) ) : |
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throw new CondorcetException(13, null); |
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endif; |
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// Reformat line |
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$line = substr($line, 0, $searchCharacter); |
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return intval($value); |
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else : |
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return 1; |
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endif; |
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} |
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} |
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julien-boudry /
Condorcet
