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<?php
/**
* Description of FileString
*
* @author Sander
*/
class FileString extends FileObject {
private $forcedLength;
private $data;
/**
* Make a string to be stored in a file
* @param string|int $first Optional, if it is a string, it will be the contents,
* if it is a number, it will set the forced length.
* @param int $second Optional, will set the forced length. Can only be used when the
* first argument is contents.
*/
public function __construct($first = null, $second = null){
$this->forcedLength = -1;
$this->data = "";
if($second != null){
$this->data = $first;
$this->forcedLength = $second;
}else if($first != null){
if(is_string($first)){
$this->data = $first;
}else{
$this->forcedLength = $first;
}
}
}
public function getByteLength(){
return $this->getLength();
}
public function getLength(){
if($this->forcedLength >= 0){
return $this->forcedLength;
}
return strlen($this->data);
}
public function get(){
return $this->data;
}
public function set($value){
$this->data = $value;
}
public function serialize() {
$output = $this->data;
$curLength = strlen($output);
if($this->forcedLength >= 0){
if($this->forcedLength > $curLength){
return str_pad($output, $this->forcedLength, "\0", STR_PAD_RIGHT);
}elseif($this->forcedLength == $curLength){
return $output;
}else{
return substr($output, 0, $this->forcedLength);
}
}
return $output;
}
public function unserialize($data) {
__construct($data);
}
public function __toString(){
$out = "FileString";
if($this->forcedLength >= 0){
$out .= " ".$this->forcedLength;
}
$out .= ": {\"".str_replace(array(" ", "\0"), " ", $this->serialize())."\"}";
return $out;
}
}
?>
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