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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; |
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use CondorcetPHP\Condorcet\Throwable\CondorcetException; |
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abstract class CondorcetUtil |
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{ |
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// Check JSON format |
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public static function isJson (string $string) : bool |
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{ |
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if (is_numeric($string) || $string === 'true' || $string === 'false' || $string === 'null' || empty($string)) : |
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return false; |
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endif; |
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// try to decode string |
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json_decode($string); |
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// check if error occured |
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return json_last_error() === JSON_ERROR_NONE; |
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} |
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public static function prepareJson (string $input) |
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{ |
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if (!self::isJson($input)) : |
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throw new CondorcetException(15); |
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endif; |
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return json_decode($input, true); |
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} |
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// Generic action before parsing data from string input |
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public static function prepareParse (string $input, bool $isFile) : array |
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{ |
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// Is string or is file ? |
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if ($isFile === true) : |
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$input = file_get_contents($input); |
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endif; |
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// Line |
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$input = preg_replace("(\r\n|\n|\r)",';',$input); |
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$input = explode(';', $input); |
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// Delete comments |
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foreach ($input as &$line) : |
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// Delete comments |
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$is_comment = mb_strpos($line, '#'); |
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if ($is_comment !== false) : |
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$line = substr($line, 0, $is_comment); |
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endif; |
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// Trim |
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$line = trim($line); |
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endforeach; |
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return $input; |
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} |
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// Simplify Condorcet Var_Dump. Transform object to String. |
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public static function format ($input, bool $convertObject = true) |
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{ |
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if (is_object($input)) : |
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$r = $input; |
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if ($convertObject) : |
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if ($input instanceof Candidate) : |
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$r = (string) $input; |
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elseif ($input instanceof Vote) : |
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$r = $input->getSimpleRanking(); |
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elseif ($input instanceof Result) : |
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$r = $input->getResultAsArray(true); |
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endif; |
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endif; |
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elseif (!is_array($input)) : |
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$r = $input; |
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else : |
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foreach ($input as $key => $line) : |
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$input[$key] = self::format($line,$convertObject); |
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endforeach; |
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if (count($input) === 1 && is_int(key($input)) && (!is_array(reset($input)) || count(reset($input)) === 1)): |
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$r = reset($input); |
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else: |
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$r = $input; |
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endif; |
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endif; |
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return $r; |
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} |
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} |
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julien-boudry /
Condorcet
