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