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<?php |
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namespace Dallgoot\Yaml\Nodes\Generic; |
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use Dallgoot\Yaml\Nodes\Generic\NodeGeneric; |
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use Dallgoot\Yaml\NodeList; |
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use Dallgoot\Yaml\Tag\TagFactory; |
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use Dallgoot\Yaml\Types\Tagged; |
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use Dallgoot\Yaml\Nodes\Blank; |
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use Dallgoot\Yaml\Nodes\Quoted; |
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use Dallgoot\Yaml\Nodes\Scalar; |
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use Dallgoot\Yaml\Nodes\Root; |
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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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* @todo implement Indentation indicator 8.1.1 |
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*/ |
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abstract class Literals extends NodeGeneric |
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{ |
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/** @var NodeList */ |
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public $value; |
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public $identifier; |
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abstract protected function getFinalString(NodeList $list, int $refIndent = null): string; |
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public function __construct(string $nodeString, int $line) |
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{ |
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parent::__construct($nodeString, $line); |
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if (isset($nodeString[1]) && in_array($nodeString[1], ['-', '+'])) { |
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$this->identifier = $nodeString[1]; |
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} |
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} |
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public function add(NodeGeneric $child): NodeGeneric |
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{ |
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if (is_null($this->value)) $this->value = new NodeList(); |
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$candidate = $child; |
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if (!$child->isOneOf('Scalar', 'Blank', 'Comment', 'Quoted')) { |
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$candidate = new Scalar((string) $child->raw, $child->line); |
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} |
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return parent::add($candidate); |
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} |
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protected static function litteralStripLeading(NodeList &$list): void |
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{ |
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$list->rewind(); |
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while (!$list->isEmpty() && $list->bottom() instanceof Blank) { //remove leading blank |
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$list->shift(); |
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} |
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$list->rewind(); |
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} |
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protected static function litteralStripTrailing(NodeList &$list): void |
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{ |
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$list->rewind(); |
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while (!$list->isEmpty() && $list->top() instanceof Blank) { //remove trailing blank |
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$list->pop(); |
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} |
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$list->rewind(); |
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} |
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/** |
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* Builds a litteral (folded or not) |
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* As per Documentation : 8.1.1.2. Block Chomping Indicator |
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* Chomping controls how final line breaks and trailing empty lines are interpreted. |
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* YAML provides three chomping methods: |
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* Clip (default behavior) : FINAL_LINE_BREAK, NO TRAILING EMPTY LINES |
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* Strip (“-” chomping indicator) NO FINAL_LINE_BREAK, NO TRAILING EMPTY LINES |
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* Keep (“+” chomping indicator) FINAL_LINE_BREAK && TRAILING EMPTY LINES |
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*/ |
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public function build(&$parent = null) |
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{ |
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$result = ''; |
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if (!is_null($this->tag)) { |
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$output = TagFactory::transform($this->tag, $this->value); |
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return $output instanceof Tagged ? $output : $output->build($parent); |
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} |
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if (!is_null($this->value)) { |
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$tmp = $this->getFinalString($this->value->filterComment()); |
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$result = $this->identifier === '-' ? $tmp : $tmp . "\n"; |
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} |
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if ($this->_parent instanceof Root) { |
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$this->_parent->getYamlObject()->setText($result); |
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return null; |
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} else { |
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return $result; |
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} |
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} |
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/** |
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* Gets the correct string for child value. |
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* |
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* @todo double check behaviour for KEY and ITEM |
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*/ |
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protected function getChildValue(NodeGeneric $child, ?int $refIndent = 0): string |
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{ |
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$value = $child->value; |
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$start = ''; |
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if (is_null($value)) { |
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if ($child instanceof Quoted) { |
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return $child->build(); |
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} elseif ($child instanceof Blank) { |
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return ''; |
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} else { |
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return ltrim($child->raw); |
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} |
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} elseif ($value instanceof Scalar) { |
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$value = new NodeList($value); |
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} elseif ($value instanceof NodeList && !($child instanceof Scalar)) { |
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$start = ltrim($child->raw) . "\n"; |
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} |
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return $start . $this->getFinalString($value, $refIndent); |
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} |
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public function isAwaitingChild(NodeGeneric $node): bool |
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{ |
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return true; |
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} |
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} |
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dallgoot /
yaml
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