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<?php
/**
* VObject Property
*
* A property in VObject is usually in the form PARAMNAME:paramValue.
* An example is : SUMMARY:Weekly meeting
*
* Properties can also have parameters:
* SUMMARY;LANG=en:Weekly meeting.
*
* Parameters can be accessed using the ArrayAccess interface.
*
* @package Sabre
* @subpackage VObject
* @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class Sabre_VObject_Property extends Sabre_VObject_Element {
/**
* Propertyname
*
* @var string
*/
public $name;
/**
* Group name
*
* This may be something like 'HOME' for vcards.
*
* @var string
*/
public $group;
/**
* Property parameters
*
* @var array
*/
public $parameters = array();
/**
* Property value
*
* @var string
*/
public $value;
/**
* Creates a new property object
*
* By default this object will iterate over its own children, but this can
* be overridden with the iterator argument
*
* @param string $name
* @param string $value
* @param Sabre_VObject_ElementList $iterator
*/
public function __construct($name, $value = null, $iterator = null) {
$name = strtoupper($name);
$group = null;
if (strpos($name,'.')!==false) {
list($group, $name) = explode('.', $name);
}
$this->name = $name;
$this->group = $group;
if (!is_null($iterator)) $this->iterator = $iterator;
$this->setValue($value);
}
/**
* Updates the internal value
*
* @param string $value
* @return void
*/
public function setValue($value) {
$this->value = $value;
}
/**
* Turns the object back into a serialized blob.
*
* @return string
*/
public function serialize() {
$str = $this->name;
if ($this->group) $str = $this->group . '.' . $this->name;
if (count($this->parameters)) {
foreach($this->parameters as $param) {
$str.=';' . $param->serialize();
}
}
$src = array(
'\\',
"\n",
);
$out = array(
'\\\\',
'\n',
);
$str.=':' . str_replace($src, $out, $this->value);
$out = '';
while(strlen($str)>0) {
if (strlen($str)>75) {
$out.= substr($str,0,75) . "\r\n";
$str = ' ' . substr($str,75);
} else {
$out.=$str . "\r\n";
$str='';
break;
}
}
return $out;
}
/* ArrayAccess interface {{{ */
/**
* Checks if an array element exists
*
* @param mixed $name
* @return bool
*/
public function offsetExists($name) {
if (is_int($name)) return parent::offsetExists($name);
$name = strtoupper($name);
foreach($this->parameters as $parameter) {
if ($parameter->name == $name) return true;
}
return false;
}
/**
* Returns a parameter, or parameter list.
*
* @param string $name
* @return Sabre_VObject_Element
*/
public function offsetGet($name) {
if (is_int($name)) return parent::offsetGet($name);
$name = strtoupper($name);
$result = array();
foreach($this->parameters as $parameter) {
if ($parameter->name == $name)
$result[] = $parameter;
}
if (count($result)===0) {
return null;
} elseif (count($result)===1) {
return $result[0];
} else {
$result[0]->setIterator(new Sabre_VObject_ElementList($result));
return $result[0];
}
}
/**
* Creates a new parameter
*
* @param string $name
* @param mixed $value
* @return void
*/
public function offsetSet($name, $value) {
if (is_int($name)) return parent::offsetSet($name, $value);
if (is_scalar($value)) {
if (!is_string($name))
throw new InvalidArgumentException('A parameter name must be specified. This means you cannot use the $array[]="string" to add parameters.');
$this->offsetUnset($name);
$this->parameters[] = new Sabre_VObject_Parameter($name, $value);
} elseif ($value instanceof Sabre_VObject_Parameter) {
if (!is_null($name))
throw new InvalidArgumentException('Don\'t specify a parameter name if you\'re passing a Sabre_VObject_Parameter. Add using $array[]=$parameterObject.');
$this->parameters[] = $value;
} else {
throw new InvalidArgumentException('You can only add parameters to the property object');
}
}
/**
* Removes one or more parameters with the specified name
*
* @param string $name
* @return void
*/
public function offsetUnset($name) {
if (is_int($name)) return parent::offsetUnset($name, $value);
$name = strtoupper($name);
$result = array();
foreach($this->parameters as $key=>$parameter) {
if ($parameter->name == $name) {
unset($this->parameters[$key]);
}
}
}
/* }}} */
/**
* Called when this object is being cast to a string
*
* @return string
*/
public function __toString() {
return $this->value;
}
}
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