141 lines
5.6 KiB
PHP
141 lines
5.6 KiB
PHP
|
<?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.
|
||
|
*
|
||
|
* @var int
|
||
|
*/
|
||
|
protected $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 $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string
|
||
|
*/
|
||
|
public function dump($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);
|
||
|
} 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) && false !== strpos($value, "\n") && false === strpos($value, "\r")) {
|
||
|
// If the first line starts with a space character, the spec requires a blockIndicationIndicator
|
||
|
// http://www.yaml.org/spec/1.2/spec.html#id2793979
|
||
|
$blockIndentationIndicator = (' ' === substr($value, 0, 1)) ? (string) $this->indentation : '';
|
||
|
|
||
|
if (isset($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()) && false !== strpos($value->getValue(), "\n") && false === strpos($value->getValue(), "\r\n")) {
|
||
|
// If the first line starts with a space character, the spec requires a blockIndicationIndicator
|
||
|
// http://www.yaml.org/spec/1.2/spec.html#id2793979
|
||
|
$blockIndentationIndicator = (' ' === substr($value->getValue(), 0, 1)) ? (string) $this->indentation : '';
|
||
|
$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;
|
||
|
}
|
||
|
}
|