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<?php |
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namespace Dallgoot\Yaml\Nodes; |
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use Dallgoot\Yaml\NodeFactory; |
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use Dallgoot\Yaml\Regex; |
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/** |
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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 https://github.com/dallgoot/yaml |
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*/ |
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class Item extends NodeGeneric |
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{ |
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public function __construct(string $nodeString, int $line) |
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{ |
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parent::__construct($nodeString, $line); |
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preg_match(Regex::ITEM, ltrim($nodeString), $matches); |
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$value = isset($matches[1]) ? ltrim($matches[1]) : null; |
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if (!empty($value)) { |
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$n = NodeFactory::get($value, $line); |
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$n->indent = $this->indent + 2; |
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$this->add($n); |
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} |
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} |
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public function add(NodeGeneric $child):NodeGeneric |
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{ |
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$value = $this->value; |
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if ($value instanceof Key && $child instanceof Key) { |
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if ($value->indent === $child->indent) { |
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return parent::add($child); |
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} elseif ($value->isAwaitingChild($child)){ |
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return $value->add($child); |
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} else { |
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// throw new \ParseError('key ('.$value->identifier.')@'.$value->line.' has already a value', 1); |
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throw new \ParseError('key @'.$value->line.' has already a value', 1); |
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} |
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} |
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return parent::add($child); |
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} |
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public function getTargetOnEqualIndent(NodeGeneric &$node):NodeGeneric |
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{ |
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$supposedParent = $this->getParent(); |
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if ($node->indent === $supposedParent->indent) { |
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return $supposedParent->getParent(); |
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} |
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return $supposedParent; |
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} |
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public function getTargetOnMoreIndent(NodeGeneric &$node):NodeGeneric |
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{ |
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return $this->value instanceof NodeGeneric && $this->value->isAwaitingChild($node) ? $this->value : $this; |
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} |
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/** |
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* Builds an item. Adds the item value to the parent array|Iterator |
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* |
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* @param array|\Iterator|null $parent The parent |
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* |
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* @throws \Exception if parent is another type than array or object Iterator |
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* @return null|array |
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*/ |
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public function build(&$parent = null) |
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{ |
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if (!is_null($parent) && !is_array($parent) && !($parent instanceof \ArrayIterator)) { |
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throw new \Exception("parent must be an ArrayIterator not ". |
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(is_object($parent) ? get_class($parent) : gettype($parent))); |
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} |
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$value = $this->value ? $this->value->build() : null; |
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if (is_null($parent)) { |
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return [$value]; |
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} else { |
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$ref = is_array($parent) ? $parent : iterator_to_array($parent); |
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$numKeys = array_keys($ref); |
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$key = count($numKeys) > 0 ? max($numKeys) + 1 : 0; |
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$parent[$key] = $value; |
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} |
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} |
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public function isAwaitingChild(NodeGeneric $node):bool |
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{ |
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if (is_null($this->value)) { |
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return true; |
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} elseif ($this->value instanceof SetKey && $node instanceof SetValue) { |
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return true; |
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} else { |
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return $this->getDeepestNode()->isAwaitingChild($node); |
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} |
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} |
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} |