Subversion-Projekte lars-tiefland.laravel_shop

<?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 (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 '';

    }

}