protected function parsePyString()
{
$token = $this->expectTokenType('PyStringOp');
$line = $token['line'];
$strings = array();
while ('PyStringOp' !== ($predicted = $this->predictTokenType()) && 'Text' === $predicted) {
$token = $this->expectTokenType('Text');
$strings[] = $token['value'];
}
$this->expectTokenType('PyStringOp');
return new PyStringNode($strings, $line);
}