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CHANGELOG.md	7.203KB	edt ren
Dumper.php	7.052KB	edt ren
Escaper.php	3.741KB	edt ren
Inline.php	34.283KB	edt ren
LICENSE	1.043KB	edt ren
Parser.php	49.013KB	edt ren
README.md	0.441KB	edt ren
Unescaper.php	3.051KB	edt ren
Yaml.php	2.876KB	edt ren
composer.json	0.914KB	edt ren

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Yaml;

use Symfony\Component\Yaml\Tag\TaggedValue;

/**
 * Dumper dumps PHP variables to YAML strings.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @final
 */
class Dumper
{
    /**
     * The amount of spaces to use for indentation of nested nodes.
     */
    private int $indentation;

public function __construct(int $indentation = 4)
    {
        if ($indentation < 1) {
            throw new \InvalidArgumentException('The indentation must be greater than zero.');
        }

$this->indentation = $indentation;
    }

/**
     * Dumps a PHP value to YAML.
     *
     * @param mixed $input  The PHP value
     * @param int   $inline The level where you switch to inline YAML
     * @param int   $indent The level of indentation (used internally)
     * @param int   $flags  A bit field of Yaml::DUMP_* constants to customize the dumped YAML string
     */
    public function dump(mixed $input, int $inline = 0, int $indent = 0, int $flags = 0): string
    {
        $output = '';
        $prefix = $indent ? str_repeat(' ', $indent) : '';
        $dumpObjectAsInlineMap = true;

if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($input instanceof \ArrayObject || $input instanceof \stdClass)) {
            $dumpObjectAsInlineMap = empty((array) $input);
        }

if ($inline <= 0 || (!\is_array($input) && !$input instanceof TaggedValue && $dumpObjectAsInlineMap) || empty($input)) {
            $output .= $prefix.Inline::dump($input, $flags);
        } elseif ($input instanceof TaggedValue) {
            $output .= $this->dumpTaggedValue($input, $inline, $indent, $flags, $prefix);
        } else {
            $dumpAsMap = Inline::isHash($input);

foreach ($input as $key => $value) {
                if ('' !== $output && "\n" !== $output[-1]) {
                    $output .= "\n";
                }

if (\is_int($key) && Yaml::DUMP_NUMERIC_KEY_AS_STRING & $flags) {
                    $key = (string) $key;
                }

if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value) && str_contains($value, "\n") && !str_contains($value, "\r")) {
                    $blockIndentationIndicator = $this->getBlockIndentationIndicator($value);

if (isset($value[-2]) && "\n" === $value[-2] && "\n" === $value[-1]) {
                        $blockChompingIndicator = '+';
                    } elseif ("\n" === $value[-1]) {
                        $blockChompingIndicator = '';
                    } else {
                        $blockChompingIndicator = '-';
                    }

$output .= sprintf('%s%s%s |%s%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', '', $blockIndentationIndicator, $blockChompingIndicator);

foreach (explode("\n", $value) as $row) {
                        if ('' === $row) {
                            $output .= "\n";
                        } else {
                            $output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row);
                        }
                    }

continue;
                }

if ($value instanceof TaggedValue) {
                    $output .= sprintf('%s%s !%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', $value->getTag());

if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value->getValue()) && str_contains($value->getValue(), "\n") && !str_contains($value->getValue(), "\r\n")) {
                        $blockIndentationIndicator = $this->getBlockIndentationIndicator($value->getValue());
                        $output .= sprintf(' |%s', $blockIndentationIndicator);

foreach (explode("\n", $value->getValue()) as $row) {
                            $output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row);
                        }

continue;
                    }

if ($inline - 1 <= 0 || null === $value->getValue() || \is_scalar($value->getValue())) {
                        $output .= ' '.$this->dump($value->getValue(), $inline - 1, 0, $flags)."\n";
                    } else {
                        $output .= "\n";
                        $output .= $this->dump($value->getValue(), $inline - 1, $dumpAsMap ? $indent + $this->indentation : $indent + 2, $flags);
                    }

continue;
                }

$dumpObjectAsInlineMap = true;

if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($value instanceof \ArrayObject || $value instanceof \stdClass)) {
                    $dumpObjectAsInlineMap = empty((array) $value);
                }

$willBeInlined = $inline - 1 <= 0 || !\is_array($value) && $dumpObjectAsInlineMap || empty($value);

$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" : '');
            }
        }

return $output;
    }

private function dumpTaggedValue(TaggedValue $value, int $inline, int $indent, int $flags, string $prefix): string
    {
        $output = sprintf('%s!%s', $prefix ? $prefix.' ' : '', $value->getTag());

if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value->getValue()) && str_contains($value->getValue(), "\n") && !str_contains($value->getValue(), "\r\n")) {
            $blockIndentationIndicator = $this->getBlockIndentationIndicator($value->getValue());
            $output .= sprintf(' |%s', $blockIndentationIndicator);

foreach (explode("\n", $value->getValue()) as $row) {
                $output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row);
            }

return $output;
        }

if ($inline - 1 <= 0 || null === $value->getValue() || \is_scalar($value->getValue())) {
            return $output.' '.$this->dump($value->getValue(), $inline - 1, 0, $flags)."\n";
        }

return $output."\n".$this->dump($value->getValue(), $inline - 1, $indent, $flags);
    }

private function getBlockIndentationIndicator(string $value): string
    {
        $lines = explode("\n", $value);

// If the first line (that is neither empty nor contains only spaces)
        // starts with a space character, the spec requires a block indentation indicator
        // http://www.yaml.org/spec/1.2/spec.html#id2793979
        foreach ($lines as $line) {
            if ('' !== trim($line, ' ')) {
                return (' ' === substr($line, 0, 1)) ? (string) $this->indentation : '';
            }
        }

return '';
    }
}