<?php
/*****************************
 *  Blockstring Class by JPT *
 *      http://jpt.de.tf     *
 *  to be used as a buffer   *
 *****************************/
class blockstring{

	public $endl;

	private $datapool;

	function __construct($endl){
		$this -> datapool = "";
		$this -> endl = $endl;
	}

	public function addData($data){
		$this -> datapool .= $data.$this -> endl; //We add the endl to the end of each block of data due to some cutting issues..
	}

	public function isFull(){
		return (trim($this -> datapool) != "") ? true : false;
	}

	public function gotLine(){
		return ($this -> isFull() && (preg_match("/".$this -> endl."/", $this -> datapool))) ? true : false;
	}

	public function getLineArray(){
		if(!$this -> isFull()) return false;
		$pool = $this -> datapool; //Copy our original pool
		$lines = explode($this -> endl, $pool); //explode by endline...
		unset($pool);
		//clean up all lines
		foreach($lines as $key => $line){
			$line = $this -> stripLine($line);
			if(trim($line) != "") $lines[$key] = $line;
		}
		return $lines;
	}

	public function getNextLine(){
		if(!$this -> gotLine()) return false;
		$expl = explode($this -> endl, $this -> datapool); //explode by endline...
		$line = $expl[0]; //...to get next line from datapool
		//Kill the fetched line
		unset($expl[0]);
		$this -> datapool = implode($this -> endl, $expl);

		$line = $this -> stripLine($line); //clean up gained line
		if($line == "") return $this -> getNextLine();
		return $line;
	}

	public function countLines(){
		$count = count($this -> getLineArray());
		return $count;
	}
	
	public function stripLine($line){
		$replace = array("\r","\n","\0");
		$line = str_replace($replace,"",$line);
		$line = trim($line);
		return $line;
	}

	public function clear(){
		unset($this -> datapool);
		$this -> datapool = "";
	}

	function __destruct(){
		unset($this -> datapool);
	}

} 
?>