Yaml.php

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<?php
 
namespace Symfony\Component\Yaml;
 
/*
 * This file is part of the symfony package.
 * (c) 2004-2006 Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
class Yaml
{
  static protected $spec = '1.2';
 
  static public function setSpecVersion($version)
  {
    if (!in_array($version, array('1.1', '1.2')))
    {
      throw new \InvalidArgumentException(sprintf('Version %s of the YAML specifications is not supported', $version));
    }
 
    self::$spec = $version;
  }
 
  static public function getSpecVersion()
  {
    return self::$spec;
  }
 
  public static function load($input)
  {
    $file = '';
 
    // if input is a file, process it
    if (strpos($input, "\n") === false && is_file($input))
    {
      $file = $input;
 
      ob_start();
      $retval = include($input);
      $content = ob_get_clean();
 
      // if an array is returned by the config file assume it's in plain php form else in YAML
      $input = is_array($retval) ? $retval : $content;
    }
 
    // if an array is returned by the config file assume it's in plain php form else in YAML
    if (is_array($input))
    {
      return $input;
    }
 
    $yaml = new Parser();
 
    try
    {
      $ret = $yaml->parse($input);
    }
    catch (\Exception $e)
    {
      throw new \InvalidArgumentException(sprintf('Unable to parse %s: %s', $file ? sprintf('file "%s"', $file) : 'string', $e->getMessage()));
    }
 
    return $ret;
  }
 
  public static function dump($array, $inline = 2)
  {
    $yaml = new Dumper();
 
    return $yaml->dump($array, $inline);
  }
}