return expr;
} else if (stream.isEqualTo('!')) {
Expression expr = parseLiteralExpression(stream);
return new NotExpression(expr);
} else if (stream.isEqualTo('*')) {
return new StarLiteral();
} else if (stream.isEqualTo('[')) {
ArrayExpression expr = new ArrayExpression();
stream.ignoreBlanks();
if (!stream.isEqualTo(']')) {
Expression item = parseExpression(stream);