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<?php |
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namespace Dallgoot\Yaml; |
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/** |
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* Constructs the result (YamlObject or array) according to every Node and respecting value |
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* |
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* @author Stéphane Rebai <[email protected]> |
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* @license Apache 2.0 |
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* @link TODO : url to specific online doc |
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*/ |
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final class Builder |
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{ |
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/** @var bool */ |
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public static $dateAsObject = false; |
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private static $_debug; |
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const INVALID_DOCUMENT = "DOCUMENT %d is invalid,"; |
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/** |
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* Builds a file. check multiple documents & split if more than one documents |
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* |
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* @param NodeRoot $root The root node : Node with Node->type === YAML::ROOT |
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* @param int $_debug the level of debugging requested |
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* |
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* @return array|YamlObject list of documents or just one. |
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*/ |
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public static function buildContent(NodeRoot $root, int $_debug) |
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{ |
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if ($_debug === 2) { |
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print_r($root); |
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return; |
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} |
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self::$_debug = $_debug; |
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$documents = []; |
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$buffer = new NodeList(); |
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try { |
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foreach ($root->value as $child) { |
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if ($child instanceof NodeDocEnd && $child !== $root->value->top()) { |
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self::pushAndSave($child, $buffer, $documents); |
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} elseif ($child instanceof NodeDocStart && $buffer->count() > 0 && $buffer->hasContent()) { |
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self::saveAndPush($child, $buffer, $documents); |
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} else { |
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$buffer->push($child); |
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} |
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} |
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$documents[] = self::buildDocument($buffer, count($documents) +1); |
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} catch (\Exception|\Error|\ParseError $e) { |
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throw new \Exception($e->getMessage(), 1, $e); |
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} |
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return count($documents) === 1 ? $documents[0] : $documents; |
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} |
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/** |
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* Builds the tree of Node for this document (as NodeList) |
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* |
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* @param NodeList $list the list of nodes that constitutes the current document |
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* @param int $docNum the index (starts @ 0) of this document in the whole YAML content provided to self::buildContent |
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* |
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* @return YamlObject the YAML document as an object |
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*/ |
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private static function buildDocument(NodeList &$list, int $docNum):YamlObject |
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{ |
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$yamlObject = new YamlObject; |
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$rootNode = new NodeRoot(); |
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$list->setIteratorMode(NodeList::IT_MODE_DELETE); |
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try { |
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foreach ($list as $child) { |
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$rootNode->add($child); |
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} |
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if (self::$_debug === 3) { |
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echo "Document #$docNum\n"; |
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print_r($rootNode); |
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} |
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return $rootNode->build($yamlObject); |
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} catch (\Exception|\Error|\ParseError $e) { |
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throw new \ParseError(sprintf(self::INVALID_DOCUMENT, $docNum).':'.$e->getMessage(), 2, $e); |
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} |
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} |
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/** |
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* Returns the correct PHP type according to the string value |
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* |
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* @param string $v a string value |
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* |
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* @return mixed The value with appropriate PHP type |
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* @throws \Exception if happens in Regex::isDate or Regex::isNumber |
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*/ |
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public static function getScalar(string $v, bool $onlyScalar = false) |
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{ |
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if (Regex::isDate($v)) return self::$dateAsObject && !$onlyScalar ? date_create($v) : $v; |
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if (Regex::isNumber($v)) return self::getNumber($v); |
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$types = ['yes' => true, |
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'no' => false, |
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'true' => true, |
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'false' => false, |
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'null' => null, |
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'.inf' => \INF, |
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'-.inf' => -\INF, |
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'.nan' => \NAN |
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]; |
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return array_key_exists(strtolower($v), $types) ? $types[strtolower($v)] : $v; |
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} |
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/** |
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* Returns the correct PHP type according to the string value |
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* |
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* @param string $v a string value |
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* |
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* @return int|float The scalar value with appropriate PHP type |
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* @todo make sure there 's only ONE dot before cosndering a float |
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*/ |
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private static function getNumber(string $v) |
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{ |
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if (preg_match(Regex::OCTAL_NUM, $v)) return intval(base_convert($v, 8, 10)); |
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if (preg_match(Regex::HEX_NUM, $v)) return intval(base_convert($v, 16, 10)); |
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return is_bool(strpos($v, '.')) ? intval($v) : floatval($v); |
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} |
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private static function pushAndSave(Node $child, NodeList $buffer, array &$documents) |
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{ |
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$buffer->push($child); |
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$documents[] = self::buildDocument($buffer, count($documents) + 1); |
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$buffer = new NodeList(); |
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} |
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private static function saveAndPush(Node $child, NodeList $buffer, array &$documents) |
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{ |
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$documents[] = self::buildDocument($buffer, count($documents) + 1); |
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$buffer = new NodeList($child); |
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} |
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} |
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dallgoot /
yaml
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