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<?php |
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declare(strict_types=1); |
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namespace Version\Extension; |
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use Version\Exception\InvalidIdentifierException; |
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class PreRelease extends BaseExtension |
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{ |
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protected function validate(string $identifier) : void |
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{ |
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if (! preg_match('/^[0-9A-Za-z\-]+$/', $identifier)) { |
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throw InvalidIdentifierException::forExtensionIdentifier($this, $identifier); |
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} |
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} |
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public function compareTo(PreRelease $preRelease) : int |
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{ |
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$firstPreReleaseIdentifiers = array_values($this->getIdentifiers()); |
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$secondPreReleaseIdentifiers = array_values($preRelease->getIdentifiers()); |
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$pr1Count = count($firstPreReleaseIdentifiers); |
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$pr2Count = count($secondPreReleaseIdentifiers); |
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$limit = min($pr1Count, $pr2Count); |
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for ($i = 0; $i < $limit; $i++) { |
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if ($firstPreReleaseIdentifiers[$i] === $secondPreReleaseIdentifiers[$i]) { |
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continue; |
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} |
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return $this->compareIdentifiers($firstPreReleaseIdentifiers[$i], $secondPreReleaseIdentifiers[$i]); |
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} |
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return $pr1Count - $pr2Count; |
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} |
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private function compareIdentifiers($identifier1, $identifier2) : int |
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{ |
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$pr1IsAlpha = ctype_alpha($identifier1); |
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$pr2IsAlpha = ctype_alpha($identifier2); |
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if ($pr1IsAlpha xor $pr2IsAlpha) { |
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return $pr1IsAlpha ? 1 : -1; |
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} |
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if (ctype_digit($identifier1) && ctype_digit($identifier2)) { |
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return (int) $identifier1 - (int) $identifier2; |
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} |
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return strcmp($identifier1, $identifier2); |
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} |
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} |
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nikolaposa /
version
