function setDoc($doc, $pos = 0) {
		$this->doc = $doc;
		$this->size = strlen($doc);
		$this->setPos($pos);
	}
function setDoc($doc, $pos = 0) {
		$this->doc = $doc;
		$this->size = strlen($doc);
		$this->setPos($pos);
	}
function setDoc ( $ doc , $ pos = 0 ) { $ this -> doc = $ doc ; $ this -> size = strlen ( $ doc ) ; $ this -> setPos ( $ pos ) ; }
Sets target document
@param string $doc Document to be tokenized
@param int $pos Position to start parsing
@see getDoc()
@see setPos()
Sets target document