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<?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\Exception\ParseException;
/**
* Yaml offers convenience methods to load and dump YAML.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Yaml
{
/**
* Parses YAML into a PHP value.
*
* Usage:
* <code>
* $array = Yaml::parse(file_get_contents('config.yml'));
* print_r($array);
* </code>
*
* As this method accepts both plain strings and file names as an input,
* you must validate the input before calling this method. Passing a file
* as an input is a deprecated feature and will be removed in 3.0.
*
* Note: the ability to pass file names to the Yaml::parse method is deprecated since version 2.2 and will be removed in 3.0. Pass the YAML contents of the file instead.
*
* @param string $input Path to a YAML file or a string containing YAML
* @param bool $exceptionOnInvalidType True if an exception must be thrown on invalid types false otherwise
* @param bool $objectSupport True if object support is enabled, false otherwise
* @param bool $objectForMap True if maps should return a stdClass instead of array()
*
* @return mixed The YAML converted to a PHP value
*
* @throws ParseException If the YAML is not valid
*/
public static function parse($input, $exceptionOnInvalidType = false, $objectSupport = false, $objectForMap = false)
{
// if input is a file, process it
$file = '';
if (strpos($input, "\n") === false && is_file($input)) {
@trigger_error('The ability to pass file names to the '.__METHOD__.' method is deprecated since version 2.2 and will be removed in 3.0. Pass the YAML contents of the file instead.', E_USER_DEPRECATED);
if (false === is_readable($input)) {
throw new ParseException(sprintf('Unable to parse "%s" as the file is not readable.', $input));
}
$file = $input;
$input = file_get_contents($file);
}
$yaml = new Parser();
try {
return $yaml->parse($input, $exceptionOnInvalidType, $objectSupport, $objectForMap);
} catch (ParseException $e) {
if ($file) {
$e->setParsedFile($file);
}
throw $e;
}
}
/**
* Dumps a PHP value to a YAML string.
*
* The dump method, when supplied with an array, will do its best
* to convert the array into friendly YAML.
*
* @param mixed $input The PHP value
* @param int $inline The level where you switch to inline YAML
* @param int $indent The amount of spaces to use for indentation of nested nodes
* @param bool $exceptionOnInvalidType true if an exception must be thrown on invalid types (a PHP resource or object), false otherwise
* @param bool $objectSupport true if object support is enabled, false otherwise
*
* @return string A YAML string representing the original PHP value
*/
public static function dump($input, $inline = 2, $indent = 4, $exceptionOnInvalidType = false, $objectSupport = false)
{
if ($indent < 1) {
throw new \InvalidArgumentException('The indentation must be greater than zero.');
}
$yaml = new Dumper();
$yaml->setIndentation($indent);
return $yaml->dump($input, $inline, 0, $exceptionOnInvalidType, $objectSupport);
}
}