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<?php declare(strict_types=1); |
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/** |
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* Created by Vitaly Iegorov <[email protected]>. |
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* on 06.04.17 at 07:34 |
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*/ |
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namespace samsonframework\stringconditiontree\string; |
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/** |
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* This class describes character group with next structure: |
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* - fixed length character group |
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* - variable length character group |
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* |
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* @author Vitaly Egorov <[email protected]> |
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*/ |
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class FixedVariableCG extends AbstractCG |
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{ |
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/** string Character group matching regexp pattern matching group name */ |
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const PATTERN_GROUP = 'fixedVariable'; |
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/** string Character group matching regexp pattern */ |
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const PATTERN = '(?<'.self::PATTERN_GROUP.'>'.FixedCG::PATTERN_REGEXP.VariableCG::PATTERN_REGEXP.')'; |
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/** @var VariableCG */ |
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protected $variableCG; |
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/** @var FixedCG */ |
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protected $fixedCG; |
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/** |
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* @inheritdoc |
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*/ |
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View Code Duplication |
public function __construct(string $string, int $length = 0) |
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{ |
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parent::__construct($string, $length); |
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// Parse internal character groups |
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$this->fixedCG = FixedCG::fromString($string); |
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$this->variableCG = VariableCG::fromString($string); |
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} |
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/** |
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* Get variable character group common prefix, if exists then |
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* append fixed character group prefix. |
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* |
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* @inheritdoc |
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*/ |
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public function getCommonPrefix(AbstractCG $group): string |
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{ |
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// Get common prefix as concatenation of variable and fixed character groups common prefixes |
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if ($this->isSameType($group)) { |
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$prefix = $this->fixedCG->getCommonPrefix($group->fixedCG); |
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if ($prefix === $this->fixedCG->getString() && $prefix === $group->fixedCG->getString()) { |
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return $prefix . $this->variableCG->getCommonPrefix($group->variableCG); |
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} |
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return $prefix; |
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} |
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// Compare only first variable character groups |
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if ($group instanceof FixedCG) { |
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return $this->fixedCG->getCommonPrefix($group); |
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} |
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return ''; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function compare(AbstractCG $group): int |
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{ |
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// Compare with fixed character group |
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if ($group instanceof FixedCG) { |
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return $this->fixedCG->compare($group); |
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} |
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// Always FixedVariable character group has higher priority over variable character group |
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// FixedVariable character group has higher priority over VariableFixed character group |
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if ($group instanceof VariableCG || $group instanceof VariableFixedCG) { |
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return 1; |
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} |
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if ($this->isSameType($group)) { |
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return $this->compareLength($group); |
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} |
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return 0; |
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} |
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/** |
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* @inheritdoc |
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* @param AbstractCG|FixedVariableCG|FixedVariableCG|VariableFixedCG $group |
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*/ |
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View Code Duplication |
protected function compareLength(AbstractCG $group): int |
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{ |
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// Fixed CG are equal |
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if (($return = $this->compareFixed($group)) === 0) { |
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// Compare variable character groups |
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$return = $this->variableCG->compare($group->variableCG); |
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} |
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return $return; |
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} |
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/** |
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* Longer fixed character group has higher priority. |
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* |
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* @param FixedVariableCG $group Compared character group |
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* |
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* @return int Comparison result |
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*/ |
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private function compareFixed(FixedVariableCG $group): int |
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{ |
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// Opposite fixed CG comparison |
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return $this->fixedCG->length <=> $group->fixedCG->length; |
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} |
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} |
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samsonframework /
string-condition-tree
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.