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<?php
/*
* 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.
*/
/**
* sfYaml offers convenience methods to load and dump YAML.
*
* @package symfony
* @subpackage yaml
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
* @version SVN: $Id: sfYaml.class.php 8988 2008-05-15 20:24:26Z fabien $
*/
class sfYaml
{
static protected
$spec = '1.2';
/**
* Sets the YAML specification version to use.
*
* @param string $version The YAML specification version
*/
static public function setSpecVersion($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 = $version;
}
/**
* Gets the YAML specification version to use.
*
* @return string The YAML specification version
*/
static public function getSpecVersion()
{
return self::$spec;
}
/**
* Loads YAML into a PHP array.
*
* The load method, when supplied with a YAML stream (string or file),
* will do its best to convert YAML in a file into a PHP array.
*
* Usage:
* <code>
* $array = sfYaml::load('config.yml');
* print_r($array);
* </code>
*
* @param string $input Path of YAML file or string containing YAML
*
* @return array The YAML converted to a PHP array
*
* @throws InvalidArgumentException If the YAML is not valid
*/
public static function load($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;
}
require_once dirname(__FILE__).'/sfYamlParser.php';
$yaml = new sfYamlParser();
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;
}
/**
* Dumps a PHP array to a YAML string.
*
* The dump method, when supplied with an array, will do its best
* to convert the array into friendly YAML.
*
* @param array $array PHP array
* @param integer $inline The level where you switch to inline YAML
*
* @return string A YAML string representing the original PHP array
*/
public static function dump($array, $inline = 2)
{
require_once dirname(__FILE__).'/sfYamlDumper.php';
$yaml = new sfYamlDumper();
return $yaml->dump($array, $inline);
}
}
/**
* Wraps echo to automatically provide a newline.
*
* @param string $string The string to echo with new line
*/
function echoln($string)
{
echo $string."\n";
}
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