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<?php |
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namespace Dallgoot\Yaml; |
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use Dallgoot\Yaml\{Yaml as Y, Regex as R}; |
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/** |
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* TODO |
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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 Node2PHP |
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{ |
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/** |
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* Returns the correct PHP datatype for the value of the current Node |
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* |
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* @param Node $n a Node object to be evaluated as PHP type. |
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* @return mixed The value as PHP type : scalar, array or Compact, DateTime |
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* @throws \Exception if occurs in self::getScalar or self::getCompact |
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*/ |
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public static function get(Node $n) |
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{ |
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if (is_null($n->value)) return null; |
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if ($n->type & (Y::REF_CALL | Y::SCALAR)) return self::getScalar($n->value); |
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// if ($n->type & (Y::COMPACT_MAPPING | Y::COMPACT_SEQUENCE)) |
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// return self::getCompact(substr($n->value, 1, -1), $n->type); |
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if ($n->type & (Y::COMPACT_MAPPING | Y::COMPACT_SEQUENCE| Y::JSON)) { |
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return $n->value; |
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} |
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$expected = [//Y::JSON => $n->value, //json_decode($n->value, false, 512, JSON_PARTIAL_OUTPUT_ON_ERROR), |
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Y::QUOTED => trim($n->value, "\"'"), |
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Y::RAW => strval($n->value)]; |
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return $expected[$n->type] ?? null; |
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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 R::isDate or R::isNumber |
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*/ |
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private static function getScalar(string $v) |
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{ |
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if (R::isDate($v)) return date_create($v); |
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if (R::isNumber($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)] : strval($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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*/ |
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private static function getNumber(string $v) |
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{ |
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if (preg_match("/^(0o\d+)$/i", $v)) return intval(base_convert($v, 8, 10)); |
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if (preg_match("/^(0x[\da-f]+)$/i", $v)) return intval(base_convert($v, 16, 10)); |
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return is_bool(strpos($v, '.')) ? intval($v) : floatval($v); |
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} |
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/** |
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* Returns a Compact object representing the inline object/array provided as string |
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* |
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* @param string $mappingOrSeqString The mapping or sequence string |
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* @param integer $type The type |
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* |
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* @return Compact The compact object equivalent to $mappingOrString |
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* @throws \Exception if raised by self::getScalar |
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*/ |
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private static function getCompact(string $objOr, int $type):object |
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{ |
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if ($type === Y::COMPACT_SEQUENCE) { |
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return new Compact(self::getArray($objOrSeqString)); |
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} |
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if ($type === Y::COMPACT_MAPPING) { |
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return new Compact(self::getObject($objOrSeqString)); |
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} |
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throw new TypeError(__METHOD__.": paramater 'type' can only be YAML::COMPACT_SEQUENCE or YAML::COMPACT_MAPPING"); |
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} |
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/** |
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* @todo : that's not robust enough, improve it.this should handle references present inside the string |
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*/ |
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private function getArray($sequenceString) |
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{ |
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$out = []; |
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$f = function ($e) { return self::getScalar(trim($e));}; |
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foreach (array_map($f, explode(",", $sequenceString)) as $key => $value) { |
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$out[$key] = $value; |
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} |
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return $out; |
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} |
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/** |
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* Gets the compact object. |
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* |
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* @todo : that's not robust enough, improve it.this should handle references present inside the string |
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*/ |
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private static function getObject($objectString) |
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{ |
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$out = new \StdClass; |
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foreach (explode(',', $objectString) as $value) { |
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list($keyName, $keyValue) = explode(':', $value); |
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$out->{trim($keyName, '\'" ')} = self::getScalar(trim($keyValue)); |
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} |
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return $out; |
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} |
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} |
dallgoot /
yaml
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