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<?php |
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namespace Dallgoot\Yaml; |
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use Dallgoot\Yaml\Dumper; |
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use Dallgoot\Yaml\Types\YamlObject; |
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use Dallgoot\Yaml\Types\Compact; |
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use Dallgoot\Yaml\Types\Tagged; |
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/** |
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* Convert PHP datatypes to a YAML string syntax |
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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 DumperHandlers |
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{ |
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private $dumper; |
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public function __construct(Dumper $dumper) |
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{ |
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$this->dumper = $dumper; |
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} |
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public function dumpScalar($dataType): string |
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{ |
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if ($dataType === \INF) return '.inf'; |
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if ($dataType === -\INF) return '-.inf'; |
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$precision = "%." . $this->dumper->floatPrecision . "F"; |
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switch (gettype($dataType)) { |
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case 'boolean': |
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return $dataType ? 'true' : 'false'; |
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case 'float': //fall through |
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case 'double': |
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return is_nan((float) $dataType) ? '.nan' : sprintf($precision, $dataType); |
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} |
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return $this->dumpString($dataType); |
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} |
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// public function dumpCompound($compound, int $indent, bool $compact=false): string |
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// { |
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// if ($compact) { |
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// return $this->dumpCompact($compound, $indent); |
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// } else { |
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// if (is_array($compound)) { |
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// if (isset($compound[0]) && $compound[0] instanceof YamlObject) { |
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// return $this->dumper->dumpMultiDoc($compound); |
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// } |
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// $keyMask = '-'; |
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// $refKeys = range(0, count($compound) - 1); |
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// if (array_keys($compound) !== $refKeys) { |
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// $keyMask = '%s:'; |
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// } |
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// return $this->dumper->iteratorToString($compound, $keyMask, "\n", $indent); |
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// } elseif (is_object($compound) && !is_callable($compound)) { |
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// return $this->dumpObject($compound, $indent); |
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// } |
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// } |
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// throw new \Exception("Dumping Callable|Resource is not currently supported", 1); |
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// } |
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public function dumpObject(object $object, int $indent, bool $isCompact = false, bool $isRoot = false): string |
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{ |
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return match ($object::class) { |
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Compact::class => $this->dumpCompact($object, $indent), |
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Tagged::class => $this->dumpTagged($object, $indent), |
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\DateTime::class => $this->dumpDateTime($object), |
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default => $this->_object($object, $indent, $isCompact, $isRoot), |
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}; |
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} |
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public function dumpCompact(Compact $compact, int $indent, bool $isRoot = false) |
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{ |
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$arr = $compact->getArrayCopy(); |
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if (count(get_object_vars($compact)) === 0) { |
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return $this->dumpArray($arr, $indent, true); |
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} |
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return $this->_objectCompact($compact, $indent, $isRoot); |
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} |
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public function _object(object $o, int $indent, bool $isCompact = false, $isRoot = false): string |
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{ |
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return $isCompact ? $this->_objectCompact($o, $indent, $isRoot) |
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: $this->_objectStd($o, $indent, false, $isRoot); |
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} |
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public function _objectStd(object $o, int $indent, bool $isCompact = false, bool $isRoot = false) |
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{ |
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$pairs = ['']; |
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$realIndent = $indent + Dumper::INDENT; |
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if($isRoot) { |
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$pairs = []; |
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$realIndent = 0; |
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} |
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foreach (get_object_vars($o) as $key => $value) { |
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$dumpedValue = $this->dumper->dump($value, $realIndent, $value instanceof Compact, false); |
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$pairs[] = sprintf("%s%s: %s", str_repeat(' ', $realIndent), $key, $dumpedValue); |
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} |
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return implode(PHP_EOL, $pairs); |
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} |
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public function _objectCompact(object $o, int $indent, bool $isRoot = false) |
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{ |
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$pairs = []; |
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foreach ($o as $key => $value) { |
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$pairs[] = "$key: " . $this->dumper->dump($value, 0, true, false); |
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} |
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return '{'. implode(', ', $pairs) . '}'; |
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} |
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public function dumpArray(array $a, int $indent, bool $isCompact = false, $isRoot = false): string |
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{ |
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if(isset($a[0]) && $a[0] instanceof YamlObject) { |
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return $this->dumper->dumpMultiDoc($a); |
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} |
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if (array_keys($a) !== range(0, count($a) - 1)) { |
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return $this->_object((object) $a, $indent, $isCompact, $isRoot); |
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} |
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return $isCompact ? $this->_dumpCompactArray($a, $indent) |
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: $this->_dumpNativeArray($a, $indent, $isRoot); |
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} |
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public function _dumpNativeArray(array $a, int $indent, $isRoot = false): string |
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{ |
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$pairs = ['']; |
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$realIndent = $indent + Dumper::INDENT; |
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if($isRoot) { |
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$pairs = []; |
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$realIndent = 0; |
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} |
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foreach ($a as $value) { |
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$dumpedValue = $this->dumper->dump($value, 0, $value instanceof Compact, false); |
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// TODO : seems ok but make tests to double check : fixed by PR from Delkano |
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$dumpedValue = $this->dumper->dump($value, $realIndent, $value instanceof Compact, false); |
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$pairs[] = sprintf("%s- %s", str_repeat(' ', $realIndent), $dumpedValue); |
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} |
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return implode(PHP_EOL, $pairs); |
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} |
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public function _dumpCompactArray(array $a, int $indent): string |
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{ |
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$pairs = []; |
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foreach ($a as $value) { |
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$pairs[] = $this->dumper->dump($value, $indent, true); |
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} |
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return '[' . implode(', ', $pairs) . ']'; |
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} |
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public function dumpDateTime(\DateTime $datetime): string |
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{ |
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return $datetime->format($this->dumper::DATE_FORMAT); |
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} |
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/** |
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* Dumps a string. Protects it if needed |
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* |
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* @param string $str The string |
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* |
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* @return string ( description_of_the_return_value ) |
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* @todo implements checking and protection function |
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*/ |
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public function dumpString(string $str): string |
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{ |
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//those characters must be escaped : - : ? { } [ ] # , & * ! > | ' " % |
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// The “@” (#x40, at) and “`” (#x60, grave accent) are reserved for future use. |
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// 5.4. Line Break Characters |
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// Example 5.13. Escaped Characters |
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$str = json_encode(ltrim($str)); |
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return strspn(substr($str, 1, -1), "-:?{}[]#,&*!>|'\"%") > 0 ? $str : trim($str, '"'); |
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} |
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//TODO : handle 'php/object' |
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public function dumpTagged(Tagged $obj, int $indent): string |
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{ |
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$separator = "\n"; |
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$isCompact = $obj->value instanceof Compact; |
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if (is_scalar($obj->value) || $isCompact) { |
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$separator = ' '; |
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} |
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return ($obj->tagName) . $separator . $this->dumper->dump($obj->value, $indent, $isCompact); |
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} |
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} |
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dallgoot /
yaml
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