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<?php |
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namespace Dallgoot\Yaml\Nodes; |
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use Dallgoot\Yaml\Nodes\Generic\NodeGeneric; |
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use Dallgoot\Yaml\Nodes\Generic\Literals; |
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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 Key extends NodeGeneric |
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{ |
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const ERROR_NO_KEYNAME = self::class . ": key has NO IDENTIFIER on line %d"; |
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public function __construct(string $nodeString, int $line, ?array $matches = null) |
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{ |
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parent::__construct($nodeString, $line); |
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if (is_null($matches)) { |
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if (!((bool) preg_match(Regex::KEY, ltrim($nodeString), $matches))) { |
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throw new \ParseError("Not a KEY:VALUE syntax ($nodeString)", 1); |
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} |
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} |
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$this->setIdentifier($matches[1]); |
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$value = isset($matches[2]) ? trim($matches[2]) : null; |
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if (!empty($value)) { |
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$child = NodeFactory::getKeyValue($value, $line); |
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$child->indent = null; |
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$this->add($child); |
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} |
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} |
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public function setIdentifier(string $keyString): void |
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{ |
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if ($keyString === '') { |
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throw new \ParseError(sprintf(self::ERROR_NO_KEYNAME, $this->line)); |
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} else { |
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$node = NodeFactory::get($keyString); |
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if ($node->isOneOf('Tag', 'Quoted')) { |
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$built = $node->build(); |
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if (is_object($built)) { |
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$this->identifier = $built->value; |
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} else { |
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$this->identifier = (string) $node->build(); |
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} |
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} elseif ($node instanceof Scalar) { |
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$this->identifier = trim($node->raw); |
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} |
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} |
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} |
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public function add(NodeGeneric $child): NodeGeneric |
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{ |
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if ($this->value instanceof NodeGeneric && $this->value->isOneOf('Literal', 'LiteralFolded', 'Anchor')) { |
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return $this->value->add($child); |
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} else { |
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return parent::add($child); |
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} |
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} |
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public function getTargetOnEqualIndent(NodeGeneric &$node): NodeGeneric |
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{ |
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if ($node instanceof Item) { |
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return $this; |
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} |
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return $this->getParent(); |
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} |
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public function getTargetOnMoreIndent(NodeGeneric &$node): NodeGeneric |
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{ |
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if (!is_null($this->value)) { |
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if ($this->getDeepestNode()->isAwaitingChild($node)) { |
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return $this->getDeepestNode(); |
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} |
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} |
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return $this; |
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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) || $node instanceof Comment) { |
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return true; |
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} elseif ($this->value instanceof NodeGeneric) { |
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$current = $this->value; |
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} else { |
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$current = $this->value->current(); |
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} |
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if ($current instanceof Comment) { |
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return true; |
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} |
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if ($current instanceof Scalar) { |
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return $node->isOneOf('Scalar', 'Blank'); |
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} |
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if ($current->isOneOf('Key', 'Item')) { |
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$cClass = get_class($current); |
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return $node instanceof $cClass; |
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} |
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if ($current instanceof Literals) { |
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return $node->indent > $this->indent; |
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} |
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if ($current instanceof Anchor) { |
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return $current->isAwaitingChild($node); |
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} |
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return false; |
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} |
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/** |
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* Builds a key and set the property + value to the given parent |
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* |
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* @param object|array $parent The parent |
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* |
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* @throws \ParseError if Key has no name(identifier) Note: empty string is allowed |
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*/ |
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public function build(&$parent = null): ?object |
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{ |
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if ($this->value instanceof Anchor) { |
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$result = &$this->value->build(); |
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} else { |
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$result = is_null($this->value) ? null : $this->value->build(); |
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} |
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if (is_null($parent)) { |
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$parent = new \stdClass; |
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$parent->{$this->identifier} = &$result; |
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return $parent; |
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} else { |
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$parent->{$this->identifier} = &$result; |
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return null; |
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} |
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} |
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} |
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dallgoot /
yaml
