protected function argumentValues(&$args, $delim = ',')
{
$s = $this->seek();
if (!$this->literal('(')) {
return false;
}
$values = array();
while (true) {
if ($this->expressionList($value)) {
$values[] = $value;
}
if (!$this->literal($delim)) {
break;
} else {
if ($value == null) {
$values[] = null;
}
$value = null;
}
}
if (!$this->literal(')')) {
$this->seek($s);
return false;
}
$args = $values;
return true;
}