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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 02.03.17 at 13:25 |
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*/ |
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namespace samsonframework\stringconditiontree; |
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use samsonframework\stringconditiontree\string\StructureCollection; |
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/** |
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* Class StringConditionTree |
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* |
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* TODO: Remove variable character group markers, move LMP search to string. |
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* |
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* @author Vitaly Egorov <[email protected]> |
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*/ |
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class StringConditionTree |
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{ |
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/** Tree node root element identifier, needed for recursion */ |
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const ROOT_NAME = ''; |
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/** Final tree node branch identifier */ |
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const SELF_NAME = '@self'; |
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/** String parameter start marker */ |
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const PARAMETER_START = '{'; |
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/** String parameter end marker */ |
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const PARAMETER_END = '}'; |
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/** Parameter sorting length value for counting */ |
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const PARAMETER_COF = 2000; |
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/** @var TreeNode Resulting internalCollection for debugging */ |
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protected $debug; |
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/** @var array Collection of string string => identifier */ |
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protected $source; |
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/** @var string Parametrized string start marker */ |
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protected $parameterStartMarker = self::PARAMETER_START; |
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/** @var string Parametrized string end marker */ |
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protected $parameterEndMarker = self::PARAMETER_END; |
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/** |
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* StringConditionTree constructor. |
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* |
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* @param string $parameterStartMarker Parametrized string start marker |
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* @param string $parameterEndMarker Parametrized string end marker |
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*/ |
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public function __construct( |
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string $parameterStartMarker = self::PARAMETER_START, |
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string $parameterEndMarker = self::PARAMETER_END |
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) { |
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$this->parameterStartMarker = $parameterStartMarker; |
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$this->parameterEndMarker = $parameterEndMarker; |
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} |
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/** |
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* Build similarity strings tree. |
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* |
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* @param array $input Collection of strings |
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* |
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* @return TreeNode Resulting similarity strings tree |
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*/ |
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public function process(array $input): TreeNode |
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{ |
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$this->source = $input; |
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$this->processor( |
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StructureCollection::fromStringsArray(array_keys($input))->getCommonPrefixesCollection(), |
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$this->debug = new TreeNode() |
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); |
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return $this->debug; |
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} |
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/** |
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* @param StructureCollection[] $collection |
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*/ |
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protected function processor(array $collection, TreeNode $parent, string $parentPrefix = ''): void |
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{ |
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foreach ($collection as $prefix => $item) { |
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// Create tree node. Pass string identifier if present |
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$newChild = $parent->append($prefix, $this->source[$parentPrefix.$prefix] ?? ''); |
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$lcpCollection = $item->getCommonPrefixesCollection(); |
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$this->processor($lcpCollection, $newChild, $parentPrefix.$prefix); |
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} |
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} |
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} |
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samsonframework /
string-condition-tree
