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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace WindPressDeps\Symfony\Component\Yaml; |
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|
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use WindPressDeps\Symfony\Component\Yaml\Tag\TaggedValue; |
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/** |
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* Dumper dumps PHP variables to YAML strings. |
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* |
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* @author Fabien Potencier <fabien@symfony.com> |
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* |
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* @final |
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*/ |
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class Dumper |
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{ |
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/** |
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* The amount of spaces to use for indentation of nested nodes. |
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* |
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* @var int |
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*/ |
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protected $indentation; |
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public function __construct(int $indentation = 4) |
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{ |
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if ($indentation < 1) { |
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throw new \InvalidArgumentException('The indentation must be greater than zero.'); |
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} |
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$this->indentation = $indentation; |
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} |
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/** |
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* Dumps a PHP value to YAML. |
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* |
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* @param mixed $input The PHP value |
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* @param int $inline The level where you switch to inline YAML |
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* @param int $indent The level of indentation (used internally) |
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* @param int $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string |
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*/ |
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public function dump($input, int $inline = 0, int $indent = 0, int $flags = 0): string |
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{ |
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$output = ''; |
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$prefix = $indent ? str_repeat(' ', $indent) : ''; |
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$dumpObjectAsInlineMap = \true; |
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if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($input instanceof \ArrayObject || $input instanceof \stdClass)) { |
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$dumpObjectAsInlineMap = empty((array) $input); |
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} |
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if ($inline <= 0 || !\is_array($input) && !$input instanceof TaggedValue && $dumpObjectAsInlineMap || empty($input)) { |
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$output .= $prefix . Inline::dump($input, $flags); |
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} elseif ($input instanceof TaggedValue) { |
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$output .= $this->dumpTaggedValue($input, $inline, $indent, $flags, $prefix); |
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} else { |
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$dumpAsMap = Inline::isHash($input); |
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foreach ($input as $key => $value) { |
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if ('' !== $output && "\n" !== $output[-1]) { |
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$output .= "\n"; |
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} |
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if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value) && \false !== strpos($value, "\n") && \false === strpos($value, "\r")) { |
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$blockIndentationIndicator = $this->getBlockIndentationIndicator($value); |
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if (isset($value[-2]) && "\n" === $value[-2] && "\n" === $value[-1]) { |
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$blockChompingIndicator = '+'; |
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} elseif ("\n" === $value[-1]) { |
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$blockChompingIndicator = ''; |
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} else { |
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$blockChompingIndicator = '-'; |
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} |
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$output .= sprintf('%s%s%s |%s%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags) . ':' : '-', '', $blockIndentationIndicator, $blockChompingIndicator); |
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foreach (explode("\n", $value) as $row) { |
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if ('' === $row) { |
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$output .= "\n"; |
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} else { |
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$output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row); |
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} |
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} |
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continue; |
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} |
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if ($value instanceof TaggedValue) { |
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$output .= sprintf('%s%s !%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags) . ':' : '-', $value->getTag()); |
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if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value->getValue()) && \false !== strpos($value->getValue(), "\n") && \false === strpos($value->getValue(), "\r\n")) { |
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$blockIndentationIndicator = $this->getBlockIndentationIndicator($value->getValue()); |
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$output .= sprintf(' |%s', $blockIndentationIndicator); |
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foreach (explode("\n", $value->getValue()) as $row) { |
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$output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row); |
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} |
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continue; |
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} |
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if ($inline - 1 <= 0 || null === $value->getValue() || \is_scalar($value->getValue())) { |
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$output .= ' ' . $this->dump($value->getValue(), $inline - 1, 0, $flags) . "\n"; |
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} else { |
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$output .= "\n"; |
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$output .= $this->dump($value->getValue(), $inline - 1, $dumpAsMap ? $indent + $this->indentation : $indent + 2, $flags); |
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} |
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continue; |
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} |
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$dumpObjectAsInlineMap = \true; |
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if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($value instanceof \ArrayObject || $value instanceof \stdClass)) { |
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$dumpObjectAsInlineMap = empty((array) $value); |
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} |
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$willBeInlined = $inline - 1 <= 0 || !\is_array($value) && $dumpObjectAsInlineMap || empty($value); |
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$output .= sprintf('%s%s%s%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags) . ':' : '-', $willBeInlined ? ' ' : "\n", $this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + $this->indentation, $flags)) . ($willBeInlined ? "\n" : ''); |
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} |
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} |
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return $output; |
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} |
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private function dumpTaggedValue(TaggedValue $value, int $inline, int $indent, int $flags, string $prefix): string |
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{ |
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$output = sprintf('%s!%s', $prefix ? $prefix . ' ' : '', $value->getTag()); |
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if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value->getValue()) && \false !== strpos($value->getValue(), "\n") && \false === strpos($value->getValue(), "\r\n")) { |
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$blockIndentationIndicator = $this->getBlockIndentationIndicator($value->getValue()); |
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$output .= sprintf(' |%s', $blockIndentationIndicator); |
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foreach (explode("\n", $value->getValue()) as $row) { |
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$output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row); |
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} |
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return $output; |
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} |
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if ($inline - 1 <= 0 || null === $value->getValue() || \is_scalar($value->getValue())) { |
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return $output . ' ' . $this->dump($value->getValue(), $inline - 1, 0, $flags) . "\n"; |
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} |
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return $output . "\n" . $this->dump($value->getValue(), $inline - 1, $indent, $flags); |
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} |
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private function getBlockIndentationIndicator(string $value): string |
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{ |
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$lines = explode("\n", $value); |
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// If the first line (that is neither empty nor contains only spaces) |
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// starts with a space character, the spec requires a block indentation indicator |
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// http://www.yaml.org/spec/1.2/spec.html#id2793979 |
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foreach ($lines as $line) { |
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if ('' !== trim($line, ' ')) { |
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return ' ' === substr($line, 0, 1) ? (string) $this->indentation : ''; |
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} |
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} |
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return ''; |
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} |
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} |
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|
