/**
* Dumps a PHP value to YAML.
*
* @param mixed The PHP value
* @param integer The level where you switch to inline YAML
* @param integer The level o indentation indentation (used internally)
*
* @return string The YAML representation of the PHP value
*/
public function dump($input, $inline = 0, $indent = 0)
{
$output = '';
$prefix = $indent ? str_repeat(' ', $indent) : '';
if ($inline <= 0 || !is_array($input) || empty($input)) {
$output .= $prefix . YamlInline::dump($input);
} else {
$isAHash = array_keys($input) !== range(0, count($input) - 1);
foreach ($input as $key => $value) {
$willBeInlined = $inline - 1 <= 0 || !is_array($value) || empty($value);
$output .= sprintf('%s%s%s%s', $prefix, $isAHash ? YamlInline::dump($key) . ':' : '-', $willBeInlined ? ' ' : "\n", $this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + 2)) . ($willBeInlined ? "\n" : '');
}
}
return $output;
}
/**
* Parses a YAML value.
*
* @param string A YAML value
*
* @return mixed A PHP value
*/
protected function parseValue($value)
{
if ('*' === substr($value, 0, 1)) {
if (false !== ($pos = strpos($value, '#'))) {
$value = substr($value, 1, $pos - 2);
} else {
$value = substr($value, 1);
}
if (!array_key_exists($value, $this->refs)) {
throw new InvalidArgumentException(sprintf('Reference "%s" does not exist (%s).', $value, $this->currentLine));
}
return $this->refs[$value];
}
if (preg_match('/^(?P<separator>\\||>)(?P<modifiers>\\+|\\-|\\d+|\\+\\d+|\\-\\d+|\\d+\\+|\\d+\\-)?(?P<comments> +#.*)?$/', $value, $matches)) {
$modifiers = isset($matches['modifiers']) ? $matches['modifiers'] : '';
return $this->parseFoldedScalar($matches['separator'], preg_replace('#\\d+#', '', $modifiers), intval(abs($modifiers)));
} else {
return YamlInline::load($value);
}
}
