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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Config
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Yaml.php 23651 2011-01-21 21:51:00Z mikaelkael $
*/
/**
* @see Zend_Config_Writer
*/
// require_once 'Zend/Config/Writer/FileAbstract.php';
/**
* @see Zend_Config_Yaml
*/
// require_once 'Zend/Config/Yaml.php';
/**
* @category Zend
* @package Zend_Config
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Config_Writer_Yaml extends Zend_Config_Writer_FileAbstract
{
/**
* What to call when we need to decode some YAML?
*
* @var callable
*/
protected $_yamlEncoder = array('Zend_Config_Writer_Yaml', 'encode');
/**
* Get callback for decoding YAML
*
* @return callable
*/
public function getYamlEncoder()
{
return $this->_yamlEncoder;
}
/**
* Set callback for decoding YAML
*
* @param callable $yamlEncoder the decoder to set
* @return Zend_Config_Yaml
*/
public function setYamlEncoder($yamlEncoder)
{
if (!is_callable($yamlEncoder)) {
// require_once 'Zend/Config/Exception.php';
throw new Zend_Config_Exception('Invalid parameter to setYamlEncoder - must be callable');
}
$this->_yamlEncoder = $yamlEncoder;
return $this;
}
/**
* Render a Zend_Config into a YAML config string.
*
* @since 1.10
* @return string
*/
public function render()
{
$data = $this->_config->toArray();
$sectionName = $this->_config->getSectionName();
$extends = $this->_config->getExtends();
if (is_string($sectionName)) {
$data = array($sectionName => $data);
}
foreach ($extends as $section => $parentSection) {
$data[$section][Zend_Config_Yaml::EXTENDS_NAME] = $parentSection;
}
// Ensure that each "extends" section actually exists
foreach ($data as $section => $sectionData) {
if (is_array($sectionData) && isset($sectionData[Zend_Config_Yaml::EXTENDS_NAME])) {
$sectionExtends = $sectionData[Zend_Config_Yaml::EXTENDS_NAME];
if (!isset($data[$sectionExtends])) {
// Remove "extends" declaration if section does not exist
unset($data[$section][Zend_Config_Yaml::EXTENDS_NAME]);
}
}
}
return call_user_func($this->getYamlEncoder(), $data);
}
/**
* Very dumb YAML encoder
*
* Until we have Zend_Yaml...
*
* @param array $data YAML data
* @return string
*/
public static function encode($data)
{
return self::_encodeYaml(0, $data);
}
/**
* Service function for encoding YAML
*
* @param int $indent Current indent level
* @param array $data Data to encode
* @return string
*/
protected static function _encodeYaml($indent, $data)
{
reset($data);
$result = "";
$numeric = is_numeric(key($data));
foreach($data as $key => $value) {
if(is_array($value)) {
$encoded = "\n".self::_encodeYaml($indent+1, $value);
} else {
$encoded = (string)$value."\n";
}
$result .= str_repeat(" ", $indent).($numeric?"- ":"$key: ").$encoded;
}
return $result;
}
}
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