/**
* parse the nex token and return it.
*/
public function nextToken()
{
// do we have tokens pushed back? get one
if (!empty($this->pushedBack)) {
return array_shift($this->pushedBack);
}
// have we reached the end of the code?
if ($this->cursor >= $this->end) {
return Twig_Token::EOF($this->lineno);
}
// otherwise dispatch to the lexing functions depending
// on our current position in the code.
switch ($this->position) {
case self::POSITION_DATA:
$tokens = $this->lexData();
break;
case self::POSITION_BLOCK:
$tokens = $this->lexBlock();
break;
case self::POSITION_VAR:
$tokens = $this->lexVar();
break;
}
// if the return value is not an array it's a token
if (!is_array($tokens)) {
return $tokens;
} else {
if (empty($tokens)) {
return $this->nextToken();
} else {
if (count($tokens) > 1) {
$first = array_shift($tokens);
$this->pushedBack = $tokens;
return $first;
}
}
}
// otherwise return the first item of the array.
return $tokens[0];
}
