f41bdf19c1
* 3.4: [HttpKernel] Fix loading legacy 3.3 containers in 3.4 context [TwigBundle] require twig-bridge ~3.4 [Yaml] mark some classes as final Fixed the escaping of back slashes and << in console output Add debug:form command bumped Symfony version to 2.8.28 updated VERSION for 2.8.27 updated CHANGELOG for 2.8.27 bumped Symfony version to 2.7.35 updated VERSION for 2.7.34 update CONTRIBUTORS for 2.7.34 updated CHANGELOG for 2.7.34
98 lines
3.1 KiB
PHP
98 lines
3.1 KiB
PHP
<?php
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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 Symfony\Component\Yaml;
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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 since version 3.4
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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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/**
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* @param int $indentation
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*/
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public function __construct($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 $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string
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*
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* @return string The YAML representation of the PHP value
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*/
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public function dump($input, $inline = 0, $indent = 0, $flags = 0)
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{
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$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) && $dumpObjectAsInlineMap) || empty($input)) {
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$output .= $prefix.Inline::dump($input, $flags);
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} else {
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$dumpAsMap = Inline::isHash($input);
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foreach ($input as $key => $value) {
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if ($inline >= 1 && Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && is_string($value) && false !== strpos($value, "\n")) {
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$output .= sprintf("%s%s%s |\n", $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', '');
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foreach (preg_split('/\n|\r\n/', $value) as $row) {
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$output .= sprintf("%s%s%s\n", $prefix, str_repeat(' ', $this->indentation), $row);
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}
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continue;
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}
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$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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$output .= sprintf('%s%s%s%s',
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$prefix,
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$dumpAsMap ? Inline::dump($key, $flags).':' : '-',
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$willBeInlined ? ' ' : "\n",
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$this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + $this->indentation, $flags)
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).($willBeInlined ? "\n" : '');
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}
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}
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return $output;
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}
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}
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